JP2006327247A

JP2006327247A - Vehicle control device

Info

Publication number: JP2006327247A
Application number: JP2005149624A
Authority: JP
Inventors: Minoru Ishida; 実石田
Original assignee: Toyota Motor Corp
Current assignee: Toyota Motor Corp
Priority date: 2005-05-23
Filing date: 2005-05-23
Publication date: 2006-12-07

Abstract

【課題】本発明は走行中の発電機による必要以上のバッテリへの充電を抑えることができ、発電機の駆動用燃料を最小限に抑えることで燃料消費量を削減することができる車両制御装置を提供することを目的とする。
【解決手段】バッテリと、車両の走行用駆動源で駆動してバッテリを充電可能な発電機と、バッテリを充電可能な太陽電池と、発電機の駆動を制御する発電機制御手段とを備えた車両制御装置において、車両の目的地を設定する目的地設定手段と、バッテリの充電状態を検出する充電状態検出手段と、目的地での太陽電池の発電可能電力を予測する発電可能電力予測手段とを備え、発電機制御手段は、充電状態検出手段により検出される充電状態と、発電可能電力予測手段により予測される発電可能電力とに基づいて、発電機の駆動を制御する。
【選択図】図１PROBLEM TO BE SOLVED: To reduce a fuel consumption by suppressing charging of a battery more than necessary by a running generator and minimizing fuel for driving the generator. The purpose is to provide.
SOLUTION: A battery, a generator that can be driven by a vehicle driving source to charge the battery, a solar cell that can charge the battery, and a generator control means that controls the driving of the generator. In the vehicle control device, destination setting means for setting the destination of the vehicle, charge state detection means for detecting the charge state of the battery, and power generation possible power prediction means for predicting the power generation possible of the solar cell at the destination The generator control means controls the driving of the generator based on the state of charge detected by the state of charge detection means and the electric power that can be generated predicted by the electric power generation predictor.
[Selection] Figure 1

Description

本発明は、車両制御装置に係り、特に、太陽電池でバッテリの充電を行う車両の車両制御装置に関する。 The present invention relates to a vehicle control device, and more particularly to a vehicle control device for a vehicle that charges a battery with a solar cell.

従来より、ハイブリッド型車両において、発電機による発電量を補って電動機を駆動するバッテリの過放電を防止するため、車両に太陽電池を搭載する技術が提案されている。例えば特許文献１には、太陽電池の発電状態に基づいてバッテリの目標充電量を決定し、太陽電池の発電能力を最大限に活用することにより、発電機を駆動するための燃料コストを低減すること太陽電池装備自動車が記載されている。 2. Description of the Related Art Conventionally, in a hybrid vehicle, a technique for mounting a solar cell on a vehicle has been proposed in order to prevent overdischarge of a battery that drives the motor by supplementing the amount of power generated by the generator. For example, in Patent Document 1, the target charge amount of the battery is determined based on the power generation state of the solar cell, and the fuel cost for driving the generator is reduced by making maximum use of the power generation capability of the solar cell. That car with solar cells is described.

また、特許文献２には、車両が目的地周辺に到達するとバッテリの残存容量を走行時目標充電量より大きい駐車時充電量に補正して発電を行うことで、駐車時のバッテリ充電量が不足するのを防止することが記載されている。 Further, in Patent Document 2, when the vehicle reaches the vicinity of the destination, the remaining battery capacity is corrected to a parking charge amount that is larger than the target charge amount during driving, and power generation is performed, so that the battery charge amount during parking is insufficient. It is described to prevent this.

また、特許文献３には、ＥＶ走行が可能な拠点周辺に到達する手前のＨＥＶ走行時にバッテリの充電率を高めておき、拠点周辺に入るとＥＶ走行に切り替えることが記載されている。 Patent Document 3 describes that the battery charging rate is increased at the time of HEV traveling just before reaching the vicinity of the base where EV traveling is possible, and switching to EV traveling is performed when entering the vicinity of the base.

また、特許文献４には、長い下り坂の前においてバッテリを放電するためにＥＶ走行を行い、長い下り坂でバッテリを回生充電することが記載されている。
特開２０００−２５３５０４号公報特開２００４−１４７４６０号公報特開２００３−３２０８０７号公報特開２００２−１７１６０３号公報 Patent Document 4 describes that EV traveling is performed to discharge the battery before a long downhill, and the battery is regeneratively charged on the long downhill.
JP 2000-253504 A JP 2004-147460 A JP 2003-320807 A JP 2002-171603 A

特許文献１に記載のものは、太陽電池の発電状態に基づいてバッテリの目標充電量を決定しており、車両が駐車した後の太陽電池による発電量を考慮していないため、駐車中の太陽電池による発電電力が十分に見込めるにも拘わらず駐車開始時にバッテリ充電量が多い場合がある。この場合、必要以上にバッテリが充電されており、バッテリ充電のために発電機を駆動しているので、その駆動のために余分に燃料を消費しているという問題があった。 Since the thing of patent document 1 determines the target charge amount of a battery based on the electric power generation state of a solar cell, and does not consider the electric power generation amount by the solar cell after a vehicle parks, the parked solar There are cases where the amount of battery charge is large at the start of parking, even though the power generated by the battery can be sufficiently expected. In this case, since the battery is charged more than necessary and the generator is driven for battery charging, there is a problem that extra fuel is consumed for the drive.

本発明は、上述の点に鑑みてなされたものであり、走行中の発電機による必要以上のバッテリへの充電を抑えることができ、発電機の駆動用燃料を最小限に抑えることで燃料消費量を削減することができる車両制御装置を提供することを目的とする。 The present invention has been made in view of the above-described points, and can suppress charging of a battery more than necessary by a running generator and reduce fuel consumption by minimizing fuel for driving the generator. An object of the present invention is to provide a vehicle control device capable of reducing the amount.

本発明の車両制御装置は、バッテリと、
車両の走行用駆動源で駆動して前記バッテリを充電可能な発電機と、
前記バッテリを充電可能な太陽電池と、
前記発電機の駆動を制御する発電機制御手段とを備えた車両制御装置において、
車両の目的地を設定する目的地設定手段と、
前記バッテリの充電状態を検出する充電状態検出手段と、
前記目的地での太陽電池の発電可能電力を予測する発電可能電力予測手段とを備え、
前記発電機制御手段は、前記充電状態検出手段により検出される充電状態と、前記発電可能電力予測手段により予測される発電可能電力とに基づいて、前記発電機の駆動を制御することにより、
目的地に駐車した時点のバッテリの充電状態を、太陽電池の発電電力を効率的に利用できる状態にすることができ、この結果、走行中の発電機による必要以上のバッテリへの充電を抑えることができ、発電機の駆動用燃料を最小限に抑えることで燃料消費量を削減することができる。 The vehicle control device of the present invention includes a battery,
A generator capable of charging the battery by being driven by a vehicle driving source;
A solar cell capable of charging the battery;
In a vehicle control device comprising a generator control means for controlling the drive of the generator,
Destination setting means for setting the destination of the vehicle;
Charge state detection means for detecting a charge state of the battery;
A predictable power generation means for predicting the power that can be generated by the solar cell at the destination,
The generator control means controls the drive of the generator based on the state of charge detected by the state of charge detection means and the electric power that can be generated predicted by the electric power predictable power means.
The state of charge of the battery when it is parked at the destination can be made into a state in which the power generated by the solar cell can be used efficiently, and as a result, the charging of the battery more than necessary by the running generator is suppressed. The fuel consumption can be reduced by minimizing the fuel for driving the generator.

また、前記車両制御装置は、前記発電可能電力予測手段により予測される目的地での太陽電池の発電可能電力に基づいて、車両が目的地に到達する時点での前記バッテリの目標充電状態を設定する目標充電状態設定手段を更に備え、
前記発電機制御手段は、前記充電状態検出手段により検出される充電状態を、前記目標充電状態に近づけるべく前記発電機の駆動を制御することにより、
バッテリの必要以上の充電を抑えることができる。 Further, the vehicle control device sets a target charge state of the battery at the time when the vehicle reaches the destination based on the power that can be generated by the solar cell at the destination predicted by the power generation power predicting unit. Further comprising target charging state setting means for
The generator control means controls the drive of the generator to bring the charge state detected by the charge state detection means closer to the target charge state,
The battery can be prevented from being charged more than necessary.

また、本発明の車両制御装置は、車両の走行用駆動源となるエンジン及びモータと、
前記モータに電力を供給するバッテリと、
前記バッテリを充電可能な太陽電池と、
前記走行用駆動源を制御して車両を走行させる走行用駆動源制御手段とを備え、
少なくとも前記モータを使用した走行が可能なハイブリッド車両の車両制御装置において、
車両の目的地を設定する目的地設定手段と、
前記バッテリの充電状態を検出する充電状態検出手段と、
前記目的地での太陽電池の発電可能電力を予測する発電可能電力予測手段とを備え、
前記走行用駆動源制御手段は、前記充電状態検出手段により検出される充電状態と、前記発電可能電力予測手段により予測される発電可能電力とに基づいて、前記走行用駆動源を制御することにより、
モータを使用した走行を行うことでバッテリの電力を消費し、目的地におけるバッテリの充電状態を、太陽電池の発電電力を効率的に利用できる状態にすることができ、この結果、エンジンのみによる走行を抑えることができるので、燃料消費量を削減することができる。 Further, the vehicle control device of the present invention includes an engine and a motor that serve as a driving source for driving the vehicle,
A battery for supplying power to the motor;
A solar cell capable of charging the battery;
A driving source control means for driving to drive the vehicle by controlling the driving source for driving,
In a vehicle control device for a hybrid vehicle capable of running using at least the motor,
Destination setting means for setting the destination of the vehicle;
Charge state detection means for detecting a charge state of the battery;
A predictable power generation means for predicting the power that can be generated by the solar cell at the destination,
The travel drive source control means controls the travel drive source based on the state of charge detected by the charge state detection means and the power generation potential predicted by the power generation possible power prediction means. ,
By running using a motor, the battery power is consumed, and the state of charge of the battery at the destination can be changed to a state where the power generated by the solar cell can be used efficiently. As a result, fuel consumption can be reduced.

また、前記車両制御装置は、前記発電可能電力予測手段により予測される目的地での太陽電池の発電可能電力に基づいて、車両が目的地に到達する時点での前記バッテリの目標充電状態を設定する目標充電状態設定手段を更に備え、
前記走行用駆動源制御手段は、前記充電状態検出手段により検出される充電状態を、前記目標充電状態に近づけるべく、前記モータを使用して車両を走行させることにより、
モータを使用した走行を効率的に利用することができ、燃料消費量を削減することができる。 Further, the vehicle control device sets a target charge state of the battery at the time when the vehicle reaches the destination based on the power that can be generated by the solar cell at the destination predicted by the power generation power predicting unit. Further comprising target charging state setting means for
The travel drive source control means uses the motor to drive the vehicle to bring the charge state detected by the charge state detection means closer to the target charge state,
Travel using a motor can be used efficiently, and fuel consumption can be reduced.

また、前記車両制御装置は、車両の現在位置を検出する位置検出手段と、
車両の現在位置から目的地までの距離を算出する距離算出手段と、
前記バッテリの充電状態と、目的地での太陽電池の発電可能電力に基づいて、前記モータを使用した走行が可能な距離を算出するモータ走行距離算出手段を備え、
前記距離算出手段により算出された車両の現在位置から目的地までの距離が、前記モータ走行距離算出手段により算出されたモータを使用した走行が可能な距離以下の場合に、前記走行用駆動源制御手段は、前記モータを使用して車両を走行させることにより、
より簡易な構成で、目的地に駐車した時点のバッテリの充電状態を太陽電池の発電電力を効率的に利用できる状態に近づけることができる。 Further, the vehicle control device includes position detection means for detecting a current position of the vehicle,
Distance calculating means for calculating the distance from the current position of the vehicle to the destination;
A motor travel distance calculating means for calculating a travelable distance using the motor based on the charge state of the battery and the power that can be generated by the solar cell at the destination;
When the distance from the current position of the vehicle calculated by the distance calculation means to the destination is equal to or less than the distance that can be traveled using the motor calculated by the motor travel distance calculation means, the driving source control for travel By means of running the vehicle using the motor,
With a simpler configuration, the state of charge of the battery when it is parked at the destination can be brought close to a state where the power generated by the solar cell can be used efficiently.

また、前記車両制御装置は、車両の現在位置を検出する位置検出手段と、
車両の現在位置と目的地とに基づいて、車両が目的地に到着する到着時刻を予測する到着時刻予測手段とを更に備え、
前記発電可能電力予測手段は、更に、前記到着時刻予測手段により予測された到着時刻に基づいて、目的地での前記太陽電池の発電可能電力を予測することができる。 Further, the vehicle control device includes position detection means for detecting a current position of the vehicle,
An arrival time predicting means for predicting an arrival time at which the vehicle arrives at the destination based on the current position of the vehicle and the destination;
The power generation possible power prediction unit can further predict the power generation possible power of the solar cell at the destination based on the arrival time predicted by the arrival time prediction unit.

また、前記車両制御装置は、前記車両の現在位置と目的地とに基づいて、車両が目的地に到着する到着時刻を予測する到着時刻予測手段とを更に備え、
前記発電可能電力予測手段は、更に、前記到着時刻予測手段により予測された到着時刻に基づいて、目的地での前記太陽電池の発電可能電力を予測することができる。 The vehicle control device further includes arrival time predicting means for predicting an arrival time at which the vehicle arrives at the destination based on the current position and the destination of the vehicle,
The power generation possible power prediction unit can further predict the power generation possible power of the solar cell at the destination based on the arrival time predicted by the arrival time prediction unit.

また、前記車両制御装置は、天候情報を受信可能な受信手段を更に備え、
前記発電可能電力予測手段は、更に、前記受信手段により受信された天候情報に基づいて、目的地での前記太陽電池の発電可能電力を予測することができる。 The vehicle control device further includes receiving means capable of receiving weather information,
The power generation possible power prediction unit can further predict the power generation possible power of the solar cell at the destination based on the weather information received by the reception unit.

また、前記車両制御装置は、車両の現在位置を検出する位置検出手段と、
車両の現在位置と目的地とに基づいて、車両が目的地に到着する到着時刻を予測する到着時刻予測手段と、
天候情報を受信可能な受信手段を更に備え、
前記受信手段は、前記到着時刻予測手段により予測された到着時刻における目的地の天候情報を受信し、
前記発電可能電力予測は、更に、前記到着時刻における目的地の天候情報に基づいて、目的地での前記太陽電池の発電可能電力をより正確に予測することができる。 Further, the vehicle control device includes position detection means for detecting a current position of the vehicle,
An arrival time prediction means for predicting the arrival time at which the vehicle arrives at the destination based on the current position of the vehicle and the destination;
A receiving means capable of receiving weather information;
The receiving means receives the weather information of the destination at the arrival time predicted by the arrival time prediction means,
The power generation possible power prediction can further accurately predict the power generation possible power of the solar cell at the destination based on the weather information of the destination at the arrival time.

また、前記車両制御装置は、車両の現在位置と目的地とに基づいて、車両が目的地に到着する到着時刻を予測する到着時刻予測手段と、
天候情報を受信可能な受信手段を更に備え、
前記受信手段は、前記到着時刻予測手段により予測された到着時刻における目的地の天候情報を受信し、
前記発電可能電力予測は、更に、前記到着時刻における目的地の天候情報に基づいて、目的地での前記太陽電池の発電可能電力をより正確に予測することができる。 In addition, the vehicle control device, based on the current position of the vehicle and the destination, arrival time predicting means for predicting the arrival time when the vehicle arrives at the destination;
A receiving means capable of receiving weather information;
The receiving means receives the weather information of the destination at the arrival time predicted by the arrival time prediction means,
The power generation possible power prediction can further accurately predict the power generation possible power of the solar cell at the destination based on the weather information of the destination at the arrival time.

また、前記車両制御装置は、目的地での駐車時間を設定可能な駐車時間設定手段を備え、
前記発電可能電力予測手段は、更に、前記目的地での駐車時間に基づいて、目的地での前記太陽電池の発電可能電力をより正確に予測することができる。 The vehicle control device includes a parking time setting means capable of setting a parking time at the destination,
The power generation potential predicting means can further accurately predict the power generation possible power of the solar cell at the destination based on the parking time at the destination.

また、前記車両制御装置は、目的地での駐車時間を予測する駐車時間予測手段を備え、
前記発電可能電力予測手段は、更に、前記駐車時間予測手段で予測された目的地での駐車時間に基づいて、目的地での前記太陽電池の発電可能電力をより正確に予測することができる。 In addition, the vehicle control device includes a parking time prediction means for predicting a parking time at the destination,
The power generation potential prediction unit can further accurately predict the power generation potential of the solar cell at the destination based on the parking time at the destination predicted by the parking time prediction unit.

また、前記車両制御装置は、前記駐車時間予測手段により予測される予測時間は、予め設定された所定値とすることで、簡易な構成とすることができる。 Moreover, the said vehicle control apparatus can be set as a simple structure by making the prediction time estimated by the said parking time prediction means into the predetermined value set beforehand.

また、前記車両制御装置は、車両の駐車時間を検出する駐車時間検出手段と、
前記駐車時間検出手段で検出された駐車時間を記憶する駐車時間記憶手段とを備え、
前記駐車時間予測手段は、前記駐車時間記憶手段に記憶されている過去の駐車時間に基づいて、目的地での駐車時間をより正確に予測することができる。 Further, the vehicle control device includes a parking time detection means for detecting a parking time of the vehicle,
Parking time storage means for storing the parking time detected by the parking time detection means,
The parking time predicting means can predict the parking time at the destination more accurately based on the past parking time stored in the parking time storage means.

また、前記車両制御装置は、前記目的地の次回走行開始予定時刻を設定可能な次回走行開始予定時刻設定手段を備え、
前記発電可能電力予測手段は、更に、前記次回走行開始予定時刻設定手段で設定された次回走行開始予定時刻に基づいて、目的地での前記太陽電池の発電可能電力をより正確に予測することができる。 Further, the vehicle control device includes a next traveling start scheduled time setting means capable of setting a next traveling start scheduled time of the destination,
The power generation possible power predicting unit may further accurately predict the power generation possible power of the solar cell at the destination based on the next travel start scheduled time set by the next travel start scheduled time setting unit. it can.

また、前記車両制御装置は、前記目的地の次回走行開始予定時刻を予測する次回走行開始予定時刻予測手段を備え、
前記発電可能電力予測手段は、更に、前記次回走行開始予定時刻予測手段で予測された次回走行開始予定時刻に基づいて、目的地での前記太陽電池の発電可能電力をより正確に予測することができる。 Further, the vehicle control device includes a next traveling start scheduled time predicting unit that predicts a next traveling start scheduled time of the destination,
The power generation possible power prediction means may further accurately predict the power generation possible power of the solar cell at the destination based on the next travel start scheduled time predicted by the next travel start scheduled time prediction means. it can.

本発明によれば、走行中の発電機による必要以上のバッテリへの充電を抑えることができ、発電機の駆動用燃料を最小限に抑えることで燃料消費量を削減することができる。 According to the present invention, it is possible to suppress charging of a battery more than necessary by a running generator, and it is possible to reduce fuel consumption by minimizing the fuel for driving the generator.

以下、図面に基づいて本発明の実施形態について説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１は、本発明の車両制御装置の一実施形態のシステム構成図を示す。
同図中、ナビゲーション装置１は、天気予報（または天候予報）の放送を受信する天気予報受信器２と、車両の位置情報及び移動方向や移動速度を検知するＧＰＳ（ＧｌｏｂａｌＰｏｓｉｔｉｏｎｉｎｇＳｙｓｔｅｍ）受信装置３と、地図データを格納した地図データベース４と、目的地等の座標入力や音声入力を行う入力装置５と、地図上に車両の現在位置等を表示するディスプレイ装置６と、音声出力を行うスピーカ７と、地域別及び月日別の日没時刻及び日の出時刻を格納したデータベース８と、ナビゲーション装置全体の動作を制御するナビゲーションＥＣＵ（電子制御ユニット）９より構成されている。 FIG. 1 shows a system configuration diagram of an embodiment of a vehicle control apparatus of the present invention.
In the figure, a navigation device 1 includes a weather forecast receiver 2 that receives a weather forecast (or weather forecast) broadcast, and a GPS (Global Positioning System) receiver 3 that detects vehicle position information, moving direction, and moving speed. A map database 4 storing map data, an input device 5 for inputting coordinates and voices of destinations, a display device 6 for displaying the current position of the vehicle on the map, and a speaker 7 for outputting voices. And a database 8 that stores sunset time and sunrise time for each region and month, and a navigation ECU (electronic control unit) 9 that controls the operation of the entire navigation device.

ナビゲーション装置１のナビゲーションＥＣＵ９は、車両の現在位置、現在位置から目的地までの距離を算出すると共に、目的地到着時刻を予測してハイブリッドＣＰＵ１０に供給する。 The navigation ECU 9 of the navigation device 1 calculates the current position of the vehicle, the distance from the current position to the destination, and predicts the destination arrival time and supplies it to the hybrid CPU 10.

ハイブリッドＣＰＵ１０は、バッテリＥＣＵ２０で検出したメインバッテリ２１の充電率（ＳＯＣ）を供給され、アクセルセンサ２２で検出したアクセル開度情報を供給され、車速センサ２３で検出した車速情報を供給されると共に、エンジンＥＣＵ２４及びモータ・ジェネレータＣＰＵ２５それぞれの制御情報を供給されている。ハイブリッドＣＰＵ１０はこれらの情報に基づいてエンジンＥＣＵ２４とモータ・ジェネレータＣＰＵ２５に対し制御情報を供給する。 The hybrid CPU 10 is supplied with the charging rate (SOC) of the main battery 21 detected by the battery ECU 20, is supplied with accelerator opening information detected by the accelerator sensor 22, and is supplied with vehicle speed information detected by the vehicle speed sensor 23. Control information of the engine ECU 24 and the motor / generator CPU 25 is supplied. Based on these pieces of information, the hybrid CPU 10 supplies control information to the engine ECU 24 and the motor / generator CPU 25.

エンジンＥＣＵ２４は、エンジン２６の制御を行い、エンジン２６により車両の走行及びジェネレータ２７が駆動される。モータ・ジェネレータＣＰＵ２５は、ＤＣ昇圧コンバータ３０及びインバータ３１の制御を行う。これにより、ジェネレータ（発電機）２７で発電された電気がインバータ３１、ＤＣ昇圧コンバータ３０を通してメインバッテリ２１に供給されて充電され、また、メインバッテリ２１から放電された電気がＤＣ昇圧コンバータ３０、インバータ３１を通してモータ２８（すなわちジェネレータ２７）が駆動され、車両の走行が駆動される。更に、太陽電池３３で発電された電気はＤＣ昇圧コンバータ３０を通してメインバッテリ２１に供給されて充電される。 The engine ECU 24 controls the engine 26, and the engine 26 drives the vehicle and the generator 27. The motor / generator CPU 25 controls the DC boost converter 30 and the inverter 31. As a result, the electricity generated by the generator (generator) 27 is supplied to the main battery 21 through the inverter 31 and the DC boost converter 30 to be charged, and the electricity discharged from the main battery 21 is supplied to the DC boost converter 30 and the inverter. The motor 28 (that is, the generator 27) is driven through 31 to drive the vehicle. Furthermore, the electricity generated by the solar cell 33 is supplied to the main battery 21 through the DC boost converter 30 and charged.

図２は、ハイブリッドＣＰＵ１０が実行する制御処理の一実施形態のフローチャートを示す。同図中、ステップＳ１でナビゲーション装置１の入力装置５から目的地、天候条件、次回走行開始予定時刻の入力設定を行う。目的地、次回走行開始予定時刻は毎回入力する形式でも良いが、例えば月曜日から金曜日の午前中は目的地が勤務地の駐車場で次回走行開始予定時刻は退社時刻に自動設定され、これを変更する場合だけ入力設定を行い、また、土曜日は出勤せず自宅の駐車場で充電可能なため金曜日の夜の帰宅時は目的地が自宅の駐車場に自動設定される（次回走行開始予定時刻は未入力）等、１週間の車両の使用パターンをまとめて入力可能とする。 FIG. 2 shows a flowchart of an embodiment of control processing executed by the hybrid CPU 10. In the figure, in step S1, the destination, weather conditions, and next scheduled start time of travel are set from the input device 5 of the navigation device 1. The destination and the next scheduled start time of travel may be entered every time, but for example, Monday to Friday morning, the destination is the parking lot where you are working, and the next scheduled start time is automatically set as the departure time. When you go home on Friday night, the destination is automatically set to your home parking lot (the next scheduled start time is (No input), etc., so that the usage pattern of the vehicle for one week can be input collectively.

なお、次回走行開始予定時刻の代りに、目的地に到着した後の駐車時間を設定する構成としても良い。この場合、駐車時間の設定入力がなければ、駐車時間は所定値とする。また、ナビゲーションＥＣＵ９の内蔵メモリに過去の駐車時間を駐車日時とともに記憶しておき、ナビゲーションＥＣＵ９によって曜日毎に午前、午後それぞれの駐車時間の平均値を求め、この平均値を基に駐車時間を予測する構成としても良い。 In addition, it is good also as a structure which sets the parking time after arriving at the destination instead of the next driving start scheduled time. In this case, if there is no parking time setting input, the parking time is set to a predetermined value. The past parking time is stored in the built-in memory of the navigation ECU 9 together with the parking date and time, and the navigation ECU 9 calculates the average value of the parking time for each day of the week for each day of the week, and predicts the parking time based on this average value. It is good also as composition to do.

更に、目的地が未入力の場合スピーカ７から音声で督促する。また、入力は音声入力も可能であり、例えば高速道路のサービスエリアで休息する場合には、サービスエリアの手前で目的地を追加することができる。この場合、本来の目的地は保存され、サービスエリアを出発する際の目的地として使用される。 Furthermore, when the destination is not input, the speaker 7 prompts with voice. In addition, voice input is also possible. For example, when resting in a highway service area, a destination can be added before the service area. In this case, the original destination is stored and used as the destination when leaving the service area.

更に、駐車場が屋内である等により駐車後に太陽電池３３による充電が全くない場合を考慮して、「本発明を動作させない」という選択も可能とする。 Furthermore, in consideration of a case where there is no charge by the solar battery 33 after parking because the parking lot is indoors or the like, it is possible to select “do not operate the present invention”.

次に、ステップＳ２でナビゲーション装置１は目的地を探索する。ステップＳ３でハイブリッドＣＰＵ１０は目的地までの距離が設定値以下で、目的地が近いか否かを判別する。ここでの設定値は、重量条件が１名乗車状態で、道路条件が水平舗装路で、車速条件が定常５０〜６０ｋｍ／ｓｅｃである場合に、メインバッテリ２１の充電率（ＳＯＣ）が上限許容値（例えば８０％）から下限許容値（例えば４０％）になるまでにモータ走行のみで走行可能な距離（基準距離）を基に決定する。例えば２名乗車状態では設定値を基準距離より小さく設定し、下り舗装路が続く場合は設定値を基準距離より大きく設定する。 Next, in step S2, the navigation device 1 searches for a destination. In step S3, the hybrid CPU 10 determines whether or not the distance to the destination is equal to or smaller than the set value and the destination is close. The set value here is that the charging rate (SOC) of the main battery 21 is allowed to be the upper limit when the weight condition is one person riding, the road condition is a horizontal pavement, and the vehicle speed condition is a steady 50 to 60 km / sec. It is determined based on a distance (reference distance) that can be traveled only by motor travel from a value (for example, 80%) to a lower limit allowable value (for example, 40%). For example, in the case of two passengers, the set value is set to be smaller than the reference distance, and the set value is set to be larger than the reference distance when the down pavement continues.

目的地が近い場合には、ステップＳ４に進み、天候条件と次回走行開始予定時刻が設定されているか否かを判別する。ステップＳ１において天候条件と次回走行開始予定時刻が設定されていればステップＳ５に進み、設定されていなければステップＳ７に進む。 If the destination is close, the process proceeds to step S4, and it is determined whether or not the weather condition and the next traveling start scheduled time are set. If the weather condition and the next scheduled start time of travel are set in step S1, the process proceeds to step S5, and if not set, the process proceeds to step S7.

このように、天候条件と次回走行開始予定時刻が設定されていない場合にもステップＳ７に進めるようにしたのは、目的地で駐車してから次回走行開始予定時刻までの実際の天候が天気予報受信器２で受信した予報と異なる場合もあるためである。例えば、梅雨時などは天気予報の当たる確立は高いものの、その他の場合は天気予報の当たる確立はそれほど高くない。なお、天気予報の当たる確立は、通常、７０％前後と言われている。 As described above, even when the weather condition and the next traveling start scheduled time are not set, the process proceeds to step S7 because the actual weather from the parking at the destination to the next traveling start scheduled time is the weather forecast. This is because the forecast may be different from the forecast received by the receiver 2. For example, the probability that the weather forecast is high is high during the rainy season, but the probability that the weather forecast is high in other cases. The establishment of the weather forecast is usually said to be around 70%.

また、雨天であっても短時間でも日が射せば太陽電池３３でメインバッテリ２１を充電できる。駐車後の天気予報を無視してメインバッテリ２１の充電率を下限許容値（例えば４０％）まで低下させておく方が太陽電池３３による充電でメインバッテリ２１の充電率が増加する場合があるからである。なお、太陽電池３３による充電がない場合でも、よほど長期間充電がない場合を除き、メインバッテリ２１の充電率低下による走行不能に陥る可能性は低い。 Moreover, even if it is raining, the main battery 21 can be charged by the solar cell 33 if the sun shines even for a short time. If the charging rate of the main battery 21 is decreased to the lower limit allowable value (for example, 40%) ignoring the weather forecast after parking, the charging rate of the main battery 21 may increase due to charging by the solar cell 33. It is. Even when there is no charging by the solar battery 33, it is unlikely that the vehicle will be unable to run due to a decrease in the charging rate of the main battery 21 unless there is no charging for a very long time.

ステップＳ５でハイブリッドＣＰＵ１０は、天気予報受信器２で受信した天気予報、データベース８で検索した目的地の日没時刻及び日の出時刻を取得する。なお、天気予報を取得できない場合には目的地の日没時刻及び日の出時刻だけを取得する。 In step S5, the hybrid CPU 10 acquires the weather forecast received by the weather forecast receiver 2, and the sunset time and sunrise time of the destination searched for in the database 8. If the weather forecast cannot be acquired, only the sunset time and sunrise time of the destination are acquired.

次に、ステップＳ６で太陽電池３３による充電可能な天候及び充電時間であるかを判別する。ここでは、第１条件として、ナビゲーション装置１から供給される目的地到着時刻と次回走行開始予定時刻のうち少なくとも一方が、目的地の日没時刻から日の出時刻までの時間範囲外である。第２条件として、天気予報に晴れ、曇り時々晴れ、雨のち晴れのように、少しでも太陽光の照射が期待できる「晴れ」等のキーワードがある。なお、次回走行開始予定時刻の代りに駐車時間を設定または予測している場合には、目的地到着時刻と駐車時間から次回走行開始予定時刻を求める。 Next, in step S6, it is determined whether the weather and the charging time allow charging by the solar battery 33. Here, as the first condition, at least one of the destination arrival time and the next scheduled travel start time supplied from the navigation device 1 is outside the time range from the sunset time to the sunrise time of the destination. As a second condition, there is a keyword such as “sunny” that can be expected to irradiate even a little, such as sunny, cloudy sometimes sunny, and then sunny after the weather forecast. In addition, when the parking time is set or predicted instead of the next traveling start scheduled time, the next traveling start scheduled time is obtained from the destination arrival time and the parking time.

上記第１、第２条件を共に満足した場合を充電可能な天候及び充電時間であるとする。なお、天気予報を取得できない場合には第１の条件を満足した場合に充電可能な天候及び充電時間であるとする。 The case where both the first and second conditions are satisfied is the weather and charging time in which charging is possible. In addition, when the weather forecast cannot be acquired, it is assumed that the weather and the charging time can be charged when the first condition is satisfied.

ステップＳ６で充電可能な天候及び充電時間でなければ処理を終了し、充電可能な天候及び充電時間であればステップＳ７でハイブリッドＣＰＵ１０は目的地に到着したか否かを判別する。 If the weather and charging time are not rechargeable in step S6, the process is terminated. If the weather and recharging time are rechargeable, the hybrid CPU 10 determines whether or not the destination has arrived at step S7.

目的地に到着した場合には処理を終了し、目的地に到着してなければステップＳ８でハイブリッドＣＰＵ１０はバッテリＣＰＵ２０から供給されるメインバッテリ２１の充電率が設定値以上か否かを判別する。通常、メインバッテリ２１の充電率は規定値（例えば６０％）以上とされているが、本発明では規定値より低い設定値（例えば４０％）を用いて判別する。 If the destination has arrived, the process is terminated. If the destination has not been reached, the hybrid CPU 10 determines whether or not the charging rate of the main battery 21 supplied from the battery CPU 20 is greater than or equal to a set value in step S8. Usually, the charging rate of the main battery 21 is set to a specified value (for example, 60%) or more, but in the present invention, the charging rate is determined using a set value (for example, 40%) lower than the specified value.

充電率が設定値以上の場合は、ステップＳ９でハイブリッドＣＰＵ１０は車速センサ２３から得た車速が設定値以下であるか否かを判別し、車速が設定値以下の場合は、ステップＳ１０でハイブリッドＣＰＵ１０はアクセルセンサ２２から得たアクセル開度が設定値以下であるか否かを判別する。 If the charging rate is equal to or higher than the set value, in step S9, the hybrid CPU 10 determines whether or not the vehicle speed obtained from the vehicle speed sensor 23 is equal to or lower than the set value. If the vehicle speed is equal to or lower than the set value, the hybrid CPU 10 is determined in step S10. Determines whether or not the accelerator opening obtained from the accelerator sensor 22 is less than or equal to the set value.

通常のモータ駆動のみの走行は、車速が規定値以下でアクセル開度が規定値以下のエンジン効率の悪い低負荷域に限定されているのに対し、本発明では駐車直前のメインバッテリ２１の充電率を設定値（例えば４０％）まですばやく落とすために、高負荷域までモータ駆動のみの走行を行うので、車速の設定値は規定値より大きい値に設定され、アクセル開度の設定値は規定値より大きい値に設定されている。 While normal motor-driven running is limited to a low load range where the vehicle speed is less than a specified value and the accelerator opening is less than a specified value and the engine efficiency is poor, charging of the main battery 21 just before parking is performed in the present invention. In order to quickly drop the rate to a set value (for example, 40%), only the motor drive is performed up to the high load range, so the set value of the vehicle speed is set to a value larger than the specified value, and the set value of the accelerator opening is specified. It is set to a value greater than the value.

ステップＳ１０でアクセル開度が設定値以下である場合にはステップＳ１１でハイブリッドＣＰＵ１０はモータ駆動のみの走行（ＥＶ走行モード）を許可し、エンジンＥＣＵ２４、モータ・ジェネレータＣＰＵ２５それぞれに通知してステップＳ７に進む。 If the accelerator opening is equal to or smaller than the set value in step S10, the hybrid CPU 10 permits the motor-driven only travel (EV travel mode) in step S11, and notifies each of the engine ECU 24 and the motor / generator CPU 25 to step S7. move on.

一方、ステップＳ８，Ｓ９，Ｓ１０のいずれかで充電率、車速、アクセル開度のいずれかが設定値未満の場合にはステップＳ１２に進み、ハイブリッドＣＰＵ１０はモータ駆動のみの走行（ＥＶ走行モード）を不許可とし、エンジンＥＣＵ２４、モータ・ジェネレータＣＰＵ２５それぞれに通知してステップＳ７に進む。つまり、ステップＳ１２では、エンジン２６を駆動して、エンジン２６による車両の走行駆動、またはジェネレータ２７の駆動が行われる。 On the other hand, if any of the charging rate, the vehicle speed, and the accelerator opening is less than the set value in any of steps S8, S9, and S10, the process proceeds to step S12, and the hybrid CPU 10 performs traveling only by motor driving (EV traveling mode). Not permitted, the engine ECU 24 and the motor / generator CPU 25 are notified, and the process proceeds to step S7. That is, in step S12, the engine 26 is driven, and the vehicle 26 is driven by the engine 26 or the generator 27 is driven.

これにより、ステップＳ７〜Ｓ１２が繰り返され、駐車直前のメインバッテリ２１の充電率は設定値（例えば４０％）まで落とされ、走行中のジェネレータ２７による必要以上のバッテリへの充電を抑えることができ、ジェネレータ２７の駆動用燃料を最小限に抑えることで燃料消費量を削減することができる。 Thereby, steps S7 to S12 are repeated, the charging rate of the main battery 21 immediately before parking is reduced to a set value (for example, 40%), and charging of the battery more than necessary by the running generator 27 can be suppressed. The fuel consumption can be reduced by minimizing the fuel for driving the generator 27.

なお、ステップＳ１１，Ｓ１２が請求項記載の発電機制御手段に相当し、ステップＳ１が目的地設定手段及び駐車時間設定手段及び駐車時間予測手段に相当し、バッテリＥＣＵ２０が充電状態検出手段に相当し、ステップＳ６が発電可能電力予測手段に相当し、ステップＳ８が目標充電状態設定手段に相当し、ステップＳ１１，Ｓ１２が走行用駆動源制御手段に相当し、ナビゲーション装置１が位置検出手段及び距離算出手段及び到着時刻予測手段に相当し、ステップＳ３がモータ走行距離算出手段に相当し、天気予報受信器２が受信手段に相当する。 Steps S11 and S12 correspond to the generator control means described in the claims, step S1 corresponds to the destination setting means, the parking time setting means, and the parking time prediction means, and the battery ECU 20 corresponds to the charging state detection means. Step S6 corresponds to the power generation potential prediction means, Step S8 corresponds to the target charge state setting means, Steps S11 and S12 correspond to the driving source control means for traveling, and the navigation device 1 calculates the position detection means and the distance. Step S3 corresponds to the motor travel distance calculation means, and the weather forecast receiver 2 corresponds to the reception means.

本発明の車両制御装置の一実施形態のシステム構成図である。It is a system configuration figure of one embodiment of the vehicle control device of the present invention. ハイブリッドＣＰＵ１０が実行する制御処理の一実施形態のフローチャートである。It is a flowchart of one embodiment of the control process executed by the hybrid CPU.

Explanation of symbols

１ナビゲーション装置
２天気予報受信器
３受信装置
４地図データベース
５入力装置
６ディスプレイ装置
７スピーカ
８データベース
９ナビゲーションＥＣＵ
１０ハイブリッドＣＰＵ
２０バッテリＥＣＵ
２１メインバッテリ
２２アクセルセンサ
２３車速センサ
２４エンジンＥＣＵ
２５モータ・ジェネレータＣＰＵ
２６エンジン
２７ジェネレータ
２８モータ
３０ＤＣ昇圧コンバータ
３１インバータ
３３太陽電池 DESCRIPTION OF SYMBOLS 1 Navigation apparatus 2 Weather forecast receiver 3 Receiving apparatus 4 Map database 5 Input apparatus 6 Display apparatus 7 Speaker 8 Database 9 Navigation ECU
10 Hybrid CPU
20 Battery ECU
21 Main battery 22 Accelerator sensor 23 Vehicle speed sensor 24 Engine ECU
25 Motor generator CPU
26 Engine 27 Generator 28 Motor 30 DC boost converter 31 Inverter 33 Solar cell

Claims

Battery,
A generator capable of charging the battery by being driven by a vehicle driving source;
A solar cell capable of charging the battery;
In a vehicle control device comprising a generator control means for controlling the drive of the generator,
Destination setting means for setting the destination of the vehicle;
Charge state detection means for detecting a charge state of the battery;
A predictable power generation means for predicting the power that can be generated by the solar cell at the destination,
The generator control means controls the drive of the generator based on the state of charge detected by the state of charge detection means and the electric power that can be generated predicted by the electric power generation predictor. Vehicle control device.

The vehicle control device according to claim 1,
Target charge state setting means for setting a target charge state of the battery at the time when the vehicle reaches the destination based on the power that can be generated by the solar cell at the destination predicted by the power generation potential prediction means. Prepared,
The vehicle control device, wherein the generator control means controls the drive of the generator so as to bring the charging state detected by the charging state detection means closer to the target charging state.

An engine and a motor as a driving source for driving the vehicle;
A battery for supplying power to the motor;
A solar cell capable of charging the battery;
A driving source control means for driving to drive the vehicle by controlling the driving source for driving,
In a vehicle control device for a hybrid vehicle capable of running using at least the motor,
Destination setting means for setting the destination of the vehicle;
Charge state detection means for detecting a charge state of the battery;
A predictable power generation means for predicting the power that can be generated by the solar cell at the destination,
The travel drive source control means controls the travel drive source based on the state of charge detected by the charge state detection means and the power generation potential predicted by the power generation possible power prediction means. A vehicle control device.

The vehicle control device according to claim 3, wherein
Target charge state setting means for setting a target charge state of the battery at the time when the vehicle reaches the destination based on the power that can be generated by the solar cell at the destination predicted by the power generation potential prediction means. Prepared,
The vehicle drive apparatus according to claim 1, wherein the driving source control unit for traveling causes the vehicle to travel using the motor so as to bring the charging state detected by the charging state detection unit closer to the target charging state.

The vehicle control device according to claim 3, wherein
Position detecting means for detecting the current position of the vehicle;
Distance calculating means for calculating the distance from the current position of the vehicle to the destination;
A motor travel distance calculating means for calculating a travelable distance using the motor based on the charge state of the battery and the power that can be generated by the solar cell at the destination;
When the distance from the current position of the vehicle calculated by the distance calculation means to the destination is equal to or less than the distance that can be traveled using the motor calculated by the motor travel distance calculation means, the travel drive source control The means controls the vehicle using the motor to drive the vehicle.

The vehicle control device according to any one of claims 1 to 4,
Position detecting means for detecting the current position of the vehicle;
An arrival time predicting means for predicting an arrival time at which the vehicle arrives at the destination based on the current position of the vehicle and the destination;
The vehicle control apparatus characterized in that the power generation predictable power means further predicts the power generated by the solar cell at the destination based on the arrival time predicted by the arrival time prediction means.

The vehicle control device according to claim 5, wherein
An arrival time predicting means for predicting the arrival time at which the vehicle arrives at the destination based on the current position and the destination of the vehicle;
The vehicle control apparatus characterized in that the power generation predictable power means further predicts the power generated by the solar cell at the destination based on the arrival time predicted by the arrival time prediction means.

The vehicle control device according to any one of claims 1 to 5,
A receiving means capable of receiving weather information;
The power generating power predicting unit further predicts the power generating power of the solar cell at a destination based on weather information received by the receiving unit.

The vehicle control device according to any one of claims 1 to 4,
Position detecting means for detecting the current position of the vehicle;
An arrival time prediction means for predicting the arrival time at which the vehicle arrives at the destination based on the current position of the vehicle and the destination;
A receiving means capable of receiving weather information;
The receiving means receives the weather information of the destination at the arrival time predicted by the arrival time prediction means,
The electric power generation possibility prediction further predicts electric power generation possibility of the solar cell at the destination based on weather information of the destination at the arrival time.

The vehicle control device according to claim 5, wherein
An arrival time prediction means for predicting the arrival time at which the vehicle arrives at the destination based on the current position of the vehicle and the destination;
A receiving means capable of receiving weather information;
The receiving means receives the weather information of the destination at the arrival time predicted by the arrival time prediction means,
The electric power generation possibility prediction further predicts electric power generation possibility of the solar cell at the destination based on weather information of the destination at the arrival time.

The vehicle control device according to any one of claims 1 to 10,
With parking time setting means that can set the parking time at the destination,
The power generating power predicting means further predicts the power generating power of the solar cell at the destination based on the parking time at the destination.

The vehicle control device according to any one of claims 1 to 10,
A parking time prediction means for predicting the parking time at the destination is provided.
The power generation predictable power prediction unit further predicts the power generation possible power of the solar cell at the destination based on the parking time at the destination predicted by the parking time prediction unit. apparatus.

The vehicle control device according to claim 12,
The vehicle control apparatus characterized in that the predicted time predicted by the parking time prediction means is a predetermined value set in advance.

Example addition The vehicle control device according to claim 12,
Parking time detection means for detecting the parking time of the vehicle;
Parking time storage means for storing the parking time detected by the parking time detection means,
The said parking time prediction means predicts the parking time at the destination based on the past parking time memorize | stored in the said parking time memory | storage means, The vehicle control apparatus characterized by the above-mentioned.

The vehicle control device according to any one of claims 1 to 10,
Next scheduled travel start time setting means capable of setting the next travel start scheduled time of the destination,
The power generation possible power prediction means further predicts the power generation possible power of the solar cell at the destination based on the next travel start scheduled time set by the next travel start scheduled time setting means. Vehicle control device.

The vehicle control device according to any one of claims 1 to 10,
A next traveling start scheduled time predicting means for predicting a next traveling start scheduled time of the destination;
The power generation possible power prediction means further predicts the power generation possible power of the solar cell at the destination based on the next travel start scheduled time predicted by the next travel start scheduled time prediction means. Vehicle control device.