JP2012006468A - Driving support control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a driving support control device that achieves smooth vehicle traveling according to the preference or skill of a driver, on the basis of traveling conditions.SOLUTION: In the driving support control device, a user inputs data for settings on driving support control in advance. In a vehicle speed setting input picture, "40 km/h", for example, is set as a set speed for a link 400. In a condition setting input picture, a valid period of a combination of a vehicle speed and a condition set for the link 400, a time zone in which the combination is used, a weather condition in which the combination is used, and a road surface condition are set. Vehicle speed control is performed during traveling, according to the settings for driving support control. When detecting that the set vehicle speed has been exceeded on the basis of the set conditions, the driving support control device warns a driver to reduce the speed, and transmits overspeed information to an ECU to reduce throttle opening.

Description

  The present invention relates to a driving support control device that performs driving support control according to a driving condition set by a user.

  Some driving support control devices notify the driver that the traveling speed has exceeded the speed limit based on the legal speed limit acquired by referring to the map information stored in the on-board storage device. . Furthermore, Patent Document 1 discloses an automatic vehicle speed control system that performs deceleration control when a state where the speed limit is exceeded continues for a certain period of time.

  According to the invention disclosed in Patent Document 1, the monitoring server on the Internet monitors the traveling speed and current position of a vehicle equipped with an in-vehicle processing device that can be connected to the Internet, and the traveling speed exceeds the speed limit. An alarm signal is transmitted to the in-vehicle processing device to warn the driver. When the state where the traveling speed exceeds the speed limit continues, the monitoring server transmits a deceleration command to the in-vehicle processing device to restrict the traveling speed of the vehicle within the range of the speed limit.

JP 2005-182191 A

  Depending on the driver's preference, skill, etc., the vehicle may be driven at a speed lower than the speed limit. According to the invention disclosed in Patent Document 1, driving is performed even when the traveling speed reaches a speed exceeding the predetermined value under the condition that the driver desires to travel at a speed lower than the predetermined value on the frozen road, for example. There is a problem that the user is not notified and the deceleration control is not performed.

  A driving support control device according to the present invention includes a position detection means for detecting the position of the own vehicle on a map, a speed detection means for detecting the moving speed of the own vehicle, and an input of a speed limit value of the moving speed for each predetermined section. An input means for performing, a determination means for determining driving assistance control content when the movement speed is detected to exceed the speed limit value when the position detection means detects that the position of the host vehicle is included in the predetermined section, and a determination means Output means for outputting driving control information based on the determined driving control support content.

  ADVANTAGE OF THE INVENTION According to this invention, the smooth vehicle driving | running | working adapted to the driver | operator's preference and skill according to driving | running conditions is realizable.

It is a figure which shows the structure of the vehicle control apparatus 10 of this Embodiment. 2 is a diagram illustrating a configuration of a driving support control device 100. FIG. It is a flowchart which shows a driving assistance control setting process procedure. It is a figure which shows an example of a driving assistance control setting input screen display. It is a flowchart which shows a vehicle control processing procedure. It is a flowchart which shows a driving assistance control processing procedure.

  With reference to FIGS. 1-6, one Embodiment of the driving assistance control apparatus by this invention is described. FIG. 1 is a diagram showing a configuration of a vehicle control device 10 including a driving support control device 100 of the present embodiment.

  A vehicle control device 10 shown in FIG. 1 includes an ECU (Electronic Control Unit) 50, a driving support control device 100, and a drive control device 200 that are connected to each other via a bus. The ECU 50 is a main control device having a microcomputer for electronically controlling the vehicle. The drive control device 200 is a device that executes control of braking force and driving force of a vehicle, that is, braking / driving force control. For example, a steering reaction force applying device of a steering device, a throttle device of an accelerator device, and a pedal reaction force applying device. Including brake lamp device and warning device. When the driving support control device 100 detects a state that requires braking / driving force control, such as overspeed, for example, the driving support control device 100 transmits information indicating that the state has been detected to the ECU 50. When receiving the vehicle control end instruction from the ECU 50, the driving support control apparatus 100 does not transmit information indicating that the state has been detected thereafter. The ECU 50 that has received the information indicating that the state has been detected performs braking / driving force control on the drive control device 200 based on the received information, so that traveling support control of the host vehicle is performed. Further, the ECU 50 may control the drive control device 200 in response to an operation input of the driver, for example, to control a brake lamp device in response to a brake operation by the driver.

  FIG. 2 is a diagram illustrating a configuration of the driving support control device 100. The CPU 110 is an arithmetic processing device that controls the entire driving support control device 100, and the CPU 110 and its peripheral devices are connected to each other via a bus. The peripheral devices include a main storage device 115, an auxiliary storage device 140, a display module 150, a speaker 155, and a communication module 170. The main storage device 115 has a work memory that is a work area of the CPU 110 and a program memory in which a control program is stored.

  In CPU 110, signals from GPS signal receiving device 120, user input device 130, and sensors 160 are input. A current position can be specified by an input signal from the GPS signal receiving device 120, and time data can also be acquired. The user input device 130 is, for example, a touch panel, a push button switch around the panel, a remote control, and a joystick. Sensors 160 include, for example, a vehicle speed sensor, a gyro sensor, a wiper sensor, a temperature sensor, an illuminance sensor, a surveillance camera, and an infrared sensor.

  The auxiliary storage device 140 is a storage device that stores road map data and POI (Point Of Interest) information. The auxiliary storage device 140 may be, for example, a hard disk drive, a CD or DVD storing road map data, a flash memory, other recording media, and a reading device thereof.

  The road map data is information relating to the map, and includes map display data, route search data, and guidance data. The map display data is data for displaying the road and the background of the road map. The route search data is data including branch information that is not directly related to the road shape, and is mainly used when calculating a recommended route (route search). The guidance data is data including intersection name, road name, direction name, and direction guide facility information, and is used when the user is guided based on the calculated recommended route.

  In road map data, a single road is represented as link string data by defining intersections as nodes and defining links between nodes. Therefore, the link string data is composed of node data and link data. In the road map data, node data and link data are classified and stored in mesh area units together with mesh codes. The mesh area refers to each divided area when the road map is divided into predetermined ranges. A number for identifying the mesh area is stored in the mesh code storage area. In the link string data storage area, node position coordinates, link numbers representing links between nodes, and position coordinates of interpolation points that further divide the links are stored. These position coordinates are used as shape data for map display and locator processing.

  The display module 150 displays a screen based on image data including characters and figures output as a control signal from the CPU 110, and the speaker 155 outputs a sound based on the audio data output as a control signal from the CPU 110.

  The communication module 170 acquires environmental information related to the vehicle traveling environment such as the weather, the outside air temperature, the road surface condition, day and night, and the current time through communication from an external device. However, the weather information may be acquired based on input signals from the wiper sensor and the illuminance sensor included in the sensors 160. The outside air temperature information and the road surface state information may be acquired based on input signals from a temperature sensor and a monitoring camera included in the sensors 160. The information about the day / night classification may be acquired based on input data from the illuminance sensor and the monitoring camera included in the sensors 160, and time data that can be acquired from the input signal from the GPS signal receiver 120. Information about the current time may be acquired based on time data that can be acquired by an input signal from the GPS signal receiving device 120.

  FIG. 3 is a flowchart showing a driving assistance control setting processing procedure. This procedure is performed by executing a program stored in advance in the CPU 110 of the driving assistance control device 100, and the inputted driving assistance control setting data is stored in the auxiliary storage device 140.

  When the driving support control setting process is started, in step S310, it is determined whether or not a condition setting related to driving support control is input for a previously searched route. This condition setting is input via the user input device 130. If the determination is affirmative, the process proceeds to step S320. If the determination is negative, the process proceeds to step S315. In step S315, it waits for the target range of the condition setting input regarding the driving support control to be specified. The target range of the condition setting input related to the driving support control can be specified in units of links on the map display screen, for example. Or, specify by link group, road name, road number, road type, or administrative division name including multiple links, selection from multiple links included in the route from the departure point to the destination, range of specified distance from the input point Alternatively, a designation method such as freehand area designation on a touch panel displaying a map screen may be used. If the target range of the condition setting input regarding the driving support control is specified via the user input device 130, the process proceeds to step S320.

  In step S320, the process waits for selection of a target section to which specific condition settings related to driving support control are input, and if selected via the user input device 130, the vehicle speed setting is input in step S325. Wait. As the vehicle speed setting value, for example, “40 km / h” may be directly input via the user input device 130. For example, “40 km / h” is selected from the options displayed on the screen via the user input device 130. May be selected, or an automatic setting value may be set. Details of the vehicle speed setting input will be described with reference to FIG.

  FIG. 4 is a diagram illustrating an example of a driving support control setting input screen display. Each screen shown in FIG. 4A and FIG. 4B is displayed on the display module 150 included in the driving support control device 100. An example of the vehicle speed setting input screen display in step S325 of FIG. 3 is shown in FIG. In this example, the solid link 400 connecting the nodes 410 and 420 arranged vertically is the condition setting input target section selected in step S320 of FIG. The road type of the link 400 is a general road, the road shape is a straight line, and the speed limit is 60 km / h. The set vehicle speed can be set directly via the user input device 130, or any one of the ranges where the speed limit is set as the upper limit value using the scroll screen below. It is also possible to select and set a set value. When the automatic setting is selected, for example, a setting value at the time of factory shipment, a recommended value calculated from a past history, or a setting value or actual value at the time of previous traveling may be used. In FIG. 4A, 40 km / h is about to be input as the set vehicle speed.

  When the vehicle speed setting is input in step S325 in FIG. 3, the process waits for the condition setting to be input in step S330.

  An example of the condition setting input screen display in step S330 of FIG. 3 is shown in FIG. The road type of the link 400 is a general road as described above, and the set vehicle speed is 40 km / h as input in step S325. The effective period represents an effective period of a combination of the vehicle speed setting and the condition setting for the link 400, and is set by an input via the user input device 130. Even when traveling on the same link, traffic conditions and visibility depend on time zones such as early morning, daytime, and nighttime. Therefore, the time zone to which the combination of vehicle speed setting and condition setting for this link 400 is applied is determined by the user. It is set by input via the input device 130. Similarly, the weather condition and the road surface condition are also set by input via the user input device 130.

  If the condition setting is input in step S330 in FIG. 3, it is determined in step S335 whether or not the driving support control setting input is completed. When setting the vehicle speed setting and condition setting according to different weather conditions for the same link, or when newly setting the vehicle speed setting and condition setting for different links, the driving support control setting input may be continued. If instructed via the user input device 130, the process returns to step S320. When it is instructed to end the driving support control setting input, this processing procedure ends. In accordance with the driving support control setting thus input, vehicle control processing is performed during vehicle travel.

  FIG. 5 is a flowchart showing a vehicle control processing procedure. This procedure is performed by executing a program stored in advance in a CPU (not shown) of the ECU 50. As described above, the ECU 50 that has received information from the driving support control device 100 that information indicating that the braking / driving force control is necessary, such as overspeed, has been received from the driving support control device 200 based on the received information. By performing braking / driving force control, traveling support control of the host vehicle is performed.

  When the vehicle control process is started, it is determined in step S510 whether or not a vehicle control end notification is received from the driving support control device 100. As will be described later, the driving support control device 100 transmits a vehicle control end notification to the ECU 50 in step S650 of FIG. If the determination is affirmative, in step S540, the drive control device 200 is instructed to cancel the braking / driving force control, and this processing procedure ends. In the case of negative determination, in step S520, reception of the braking / driving force control content notification from the driving support control device 100 is awaited, and the process is repeatedly returned to step S510 until the notification is received. The braking / driving force control content notification is information indicating that a state requiring braking / driving force control, such as overspeed, is detected. As will be described later, the driving support control device 100 transmits a braking / driving force control content notification to the ECU 50 in step S645 of FIG. When the notification is received, in step S530, the driving control device 200 is instructed to start the braking / driving force control and the braking / driving force control content. The braking / driving force control content in the vehicle equipped with the vehicle control device 10 is, for example, reduction of throttle opening, application of accelerator pedal reaction force, application of brake braking force, and reduction of command torque in the case of an electric vehicle. .

  FIG. 6 is a flowchart showing a driving support control processing procedure. This procedure is performed by executing a program stored in advance in the CPU 110 of the driving support control device 100.

  When the driving support control process is started, it is determined in step S610 whether or not a vehicle control end instruction has been issued. The vehicle control end instruction is, for example, an instruction by an input via the user input device 130 by a user who wants to stop the driving support control process. If the determination is affirmative, a vehicle control end notification is transmitted to the ECU 50 in step S665, and this processing procedure ends. In the case of negative determination, in step S615, the GPS signal input from the GPS signal receiving device 120 and the various signals input from the sensors 160 are analyzed. In step S620, the process of returning to step S610 is repeated until the vehicle on which the vehicle control device 10 is mounted moves to the setting target section to which the driving support control setting shown in FIG. 3 is input. The fact that the vehicle has moved to the setting target section is detected based on the input signals from the GPS signal receiving device 120 and sensors 160 and the road map data stored in the auxiliary storage device 140.

  If the determination in step S620 is affirmative, in step S625, the vehicle speed setting and the condition setting input through the driving support control setting process procedure shown in FIG. 3 are read from the auxiliary storage device 140. In step S630, based on the result of analyzing the input signals from the GPS signal receiving device 120 and the sensors 160 and the environmental information acquired from the external device via the communication module 170, the vehicle speed, traveling direction, weather, outside temperature, Information such as road surface condition, day and night, current position, current time, and the like are acquired. Based on the information acquired in this way, in step S635, whether or not the traveling environment of the host vehicle meets the conditions set in the driving assistance control setting input processing procedure, and if so, driving assistance control setting input It is determined whether or not an overspeed with respect to the vehicle speed set in the processing procedure is detected. In the case of a negative determination, the process proceeds to step S650 described later. If the determination is affirmative, the driving support control content is determined in step S640. The driving support control content includes not only the braking / driving force control content executed in the drive control device 200 but also the warning content notified by using the display module 150 and the speaker 155 in the driving support control device 100. The braking / driving force control content is control performed for deceleration to the set vehicle speed. For example, in the case of an electric vehicle, a command for a reduction in throttle opening, application of an accelerator pedal reaction force, application of brake braking force, This is a reduction in torque. In step S645, the display module 150 and the speaker 155 output a control signal for controlling the display module 150 and the speaker 155 to issue a warning prompting the driver to decelerate, and the ECU 50 is controlled and driven. Send and output force control content notification. The display module 150 and the speaker 155 to which the control signal is input notify the driver of a warning prompting the driver to decelerate. The ECU 50 that has received the braking / driving force control content notification instructs the drive control device 200 to start the braking / driving force control and instructs the braking / driving force control content in step S530 of FIG. 5 as described above.

  In step S650, as in step S610, it is determined whether a vehicle control end instruction has been issued. If the determination is affirmative, the process proceeds to step S665 described above. If the determination is negative, the GPS signal input from the GPS signal receiving device 120 and various signals input from the sensors 160 are analyzed in step S655. . In step S660, it is determined whether or not the vehicle equipped with the vehicle control device 10 has completed the passage of the driving support control setting target section that started moving in step S620. If the determination is negative, the process returns to step S635. If the determination is affirmative, the process returns to step S610.

The driving assistance control device 100 of the embodiment described above has the following operational effects.
(1) In step S325 in FIG. 3, the vehicle speed setting can be input in advance, and in step S330, the vehicle speed setting is determined according to application conditions such as time zone and weather. did. If the moving speed of the host vehicle exceeds the vehicle speed set value as shown in step S635 of FIG. 6 under the applicable conditions, the driving assistance control device 100 controls the ECU 50 to provide necessary control content as shown in step S645. To be notified. Therefore, smooth vehicle travel adapted to the driver's preference and skill according to the travel conditions can be realized.

(2) In FIG. 4, it has comprised so that an effective period, a time slot | zone, the weather, or a road surface condition can be input as an application condition of the vehicle speed setting in a predetermined area. Therefore, even for the same link, multiple patterns of setting data are created taking into consideration the effects on traffic volume, visibility, slipperiness, braking distance, etc., and set according to various conditions Data can be used flexibly.

---- Modified example ---
The driving support control device 100 according to the embodiment described above can be modified as follows.
(1) In FIG. 4 described above, an example of the vehicle speed setting item and the condition setting item is shown. However, other setting items may be input. As other setting items, for example, if acquisition from road map data or acquisition from an information distribution center via the communication module 170 is possible, the road shape represented by the curvature value of a curve, an uphill or downhill, etc. Examples include slopes, road width or number of lanes, traffic light installation intervals, and school zones.

(2) In the above description of the present embodiment and the modification, the embodiment in which the present invention is applied to the driving support control device 100 included in the vehicle control device 10 has been described. It may be a possible module. The driving assistance control device 100 may be, for example, a car navigation device, a PND (Personal Navigation Device), or a PDA (Personal Digital Assistant).

  Each embodiment and each modification described above may be combined. In addition, the present invention is not limited to the device configuration in the above-described embodiment unless the characteristic functions of the present invention are impaired.

10 Vehicle control device 50 ECU
100 Driving support control device 110 CPU
115 Main storage device 120 GPS signal receiving device 130 User input device 140 Auxiliary storage device 150 Display module 155 Speaker 160 Sensors 200 Drive control device 400 Link 410, 420 Node

Claims (9)

Position detecting means for detecting the position of the vehicle on the map;
Speed detecting means for detecting the moving speed of the host vehicle;
Input means for inputting a speed limit value of the moving speed for each predetermined section;
Determining means for determining driving assistance control content so that the moving speed does not exceed the speed limit value when the position detecting means detects that the position of the host vehicle is included in the predetermined section;
The driving support control device comprising: output means for outputting driving control information based on the driving control support content determined by the determining means. In the driving assistance control device according to claim 1,
Environmental information acquisition means for acquiring environmental information related to the traveling environment of the host vehicle,
The input means is configured to be able to input application conditions of the speed limit value for each predetermined section,
The determination unit detects that the position of the host vehicle is included in the predetermined section by the position detection unit, and satisfies the application condition based on the environment information acquired by the environment information acquisition unit. When detected, the driving support control content is determined so that the moving speed does not exceed the speed limit value. In the driving assistance control device according to claim 1 or 2,
The driving support control device further comprising screen display means for displaying an input screen used for input by the input means. In the driving assistance control device according to claim 3,
The predetermined section is included in a section road on the map, a group of section roads, a road represented by a road name, a road represented by a road number, a road corresponding to a predetermined road type, and a predetermined administrative division. Corresponding to at least one of a road, a road included in a route from a departure place to a destination, a road included in a specified distance from a predetermined point on the map, and a predetermined area on the map A driving support control device characterized by the above. In the driving assistance control device according to claim 3 or 4,
The application condition corresponds to at least one of an effective period, a time zone, weather, and a road surface state. In the driving assistance control device according to claim 4 or 5,
The driving support control apparatus, wherein the input means specifies the predetermined section using the input screen. In the driving assistance control device according to any one of claims 1 to 6,
Further comprising a notification device for notifying a passenger of the host vehicle of a warning that the vehicle speed is to be reduced so that the moving speed is equal to or less than the speed limit value;
The driving support control content includes notification control for controlling the notification device to notify the warning,
The driving support control apparatus, wherein the driving support control information includes a control signal related to the notification control. In the driving assistance control device according to any one of claims 1 to 7,
The driving support control content includes braking / driving force control for the host vehicle for setting the moving speed to the speed limit value or less,
The driving support control apparatus, wherein the driving support control information includes a control signal related to the braking / driving force control. In the driving assistance control device according to claim 8,
The braking / driving force control is at least one of throttle opening reduction control, accelerator pedal reaction force application control, brake braking force application control, and command torque reduction control. Control device.

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