CN105464818B - Engine automatic stop and automatic start-control device - Google Patents

Abstract

An engine automatic stop and automatic start control device is provided, which can prohibit unnecessary automatic start of the engine without detecting the seated state of the occupant. A signal corresponding to the operation of the brake is input to the brake signal input terminal. The processing device controls automatic stop and automatic start of the engine. The processing device executes an automatic stop process of automatically stopping the engine when the automatic stop condition is satisfied. The processing device executes an automatic start process for automatically starting the engine when the automatic start condition is satisfied while the engine is automatically stopped. During the automatic stop of the engine, when the duration of the state satisfying the idle state determination condition reaches the idle determination threshold, the processing device executes automatic start prohibition processing for prohibiting the execution of the automatic start process. The idle state determination condition includes the condition that the brake is not operated.

Description

Engine auto stop and auto start control

technical field

The invention relates to an engine automatic stop and automatic start control device applied to a saddle-riding vehicle.

Background technique

Patent Document 1 below discloses a control device for automatically stopping and automatically starting the engine of a motorcycle. For a two-wheeled motor vehicle, a case is assumed in which the occupant leaves the vehicle and places the vehicle while the engine is automatically stopped. When the occupant leaves the vehicle, when a third person other than the occupant operates the throttle handle to satisfy the automatic start condition, the engine is automatically started.

In the control device disclosed in Patent Document 1, the seat switch detects that the occupant is seated. The automatic start of the engine is permitted on the condition that the occupant is seated. Therefore, even if a third person operates the throttle handle when the occupant is not seated, the engine will not start automatically.

[Patent Document 1] Japanese Patent No. 4144722

In order to apply the technology disclosed in Patent Document 1, a seating detection sensor for accurately detecting seating is required for various riding postures of the occupant. Mounting such a seating detection sensor increases the cost of the vehicle.

Contents of the invention

An object of the present invention is to provide an engine automatic stop and automatic start control device capable of prohibiting unnecessary automatic start of an engine without detecting a seated state of a passenger.

The engine automatic stop and automatic start control device of the saddle type vehicle according to the first aspect of the present invention has:

a brake signal input terminal to which a signal corresponding to the operation of the brake is input; and

a processing device that performs control of automatic stopping and automatic starting of the engine,

When the automatic stop condition is satisfied, the processing means executes an automatic stop process for automatically stopping the engine,

when an automatic start condition is satisfied while the engine is automatically stopped, the processing means executes an automatic start process for automatically starting the engine,

During the automatic stop of the engine, after the duration of the state that satisfies the unused state determination condition reaches an unused determination threshold value, the processing device executes an automatic start prohibition process that prohibits the execution of the automatic start process,

The left state determination condition includes a condition that the brake is not operated.

In addition to the engine automatic stop and automatic start control of the first viewpoint, the engine automatic stop and automatic start control device for a saddle-riding vehicle according to the second aspect of the present invention,

It also has a throttle opening signal input terminal to which a throttle opening signal corresponding to the throttle opening is input,

The unused state determination condition further includes the following condition: the throttle opening is below an automatic start prohibition determination threshold.

In addition to the engine automatic stop and automatic start control of the first and second viewpoints, the engine automatic stop and automatic start control device for a saddle-riding vehicle according to the third viewpoint of the present invention,

It also has a vehicle speed signal input terminal to which a vehicle speed signal corresponding to the vehicle speed is input,

The leaving state determination condition further includes the following condition: the vehicle speed is below an automatic start prohibition determination threshold.

In addition to the engine automatic stop and automatic start controls of the first to third viewpoints, the engine automatic stop and automatic start control device for a saddle-riding vehicle according to a fourth aspect of the present invention,

It also has a battery voltage signal input terminal to which a battery voltage signal corresponding to the battery voltage is input,

The condition for judging the storage state further includes the following condition: the fluctuation range of the battery voltage is below a voltage fluctuation range threshold.

In addition to the engine automatic stop and automatic start controls of the first to fourth viewpoints, the engine automatic stop and automatic start control device for a saddle-riding vehicle according to a fifth aspect of the present invention,

It also has a start signal input terminal to which a start signal corresponding to the operation of the start switch is input,

The condition for judging the storage state further includes the following condition: the start switch is in an off state.

In the engine automatic stop and automatic start control device of the saddle-riding type vehicle according to the first viewpoint, after the duration of the state satisfying the unused state determination condition reaches the unused determination threshold value, the execution of the automatic start process of the engine is prohibited, so even in Even when the occupant leaves the vehicle, the engine is not automatically started even if a third person operates the throttle handle or the like. When the brake operation is performed before the duration of the state that satisfies the idle state determination condition reaches the idle determination threshold, the automatic engine start process is not prohibited. Therefore, when the automatic start condition is satisfied, the automatic start process of the engine is executed. There is no need to provide a sensor for detecting the seating of the occupant in order to determine whether the unused state determination condition is satisfied.

In the engine automatic stop and automatic start control device of the saddle-riding type vehicle according to the second viewpoint, when the operation of opening the throttle valve is performed before the duration of the state satisfying the idle state judgment condition reaches the idle judgment threshold value, the automatic start process of the engine Not prohibited.

In the engine automatic stop and automatic start control device for a saddle-riding vehicle according to the third viewpoint, when the vehicle speed exceeds the automatic start judgment threshold before the duration of the state satisfying the idle state judgment condition reaches the idle judgment threshold, the engine automatic start process Not prohibited.

In the engine automatic stop and automatic start control device of the saddle-riding type vehicle according to the fourth viewpoint, when the battery voltage fluctuates before the duration of the state satisfying the idle state judgment condition reaches the idle judgment threshold value, the automatic engine start processing is not stopped. prohibit.

In the engine automatic stop and automatic start control device for a saddle-riding vehicle according to the fifth viewpoint, when the start switch is operated before the duration of the state satisfying the unused state determination condition reaches the unused determination threshold value, the automatic engine start process is not prohibited .

Description of drawings

FIG. 1 is a side view of a saddle-riding vehicle equipped with an engine automatic stop and automatic start control device according to an embodiment.

FIG. 2 is a block diagram of an ECU and an equivalent circuit diagram of a circuit including a brake switch.

3 is a flowchart of automatic stop and automatic start control processing executed by an automatic stop and automatic start control unit.

FIG. 4 is a flowchart of an engine automatic start determination process executed in step S11 of FIG. 3 .

Label description

10: engine; 11: throttle; 15: rear wheel; 16: front wheel; 17: vehicle speed sensor; 18: side bracket; 20: brake lever; 21: throttle handle; 22: start switch; 23: brake Switch; 24: brake light; 25: battery; 26: voltage sensor; 27: crank angle sensor; 28: throttle opening sensor; 30: electronic control unit (ECU); 31: input circuit; 32: A/D Conversion circuit; 33, 34: input circuit; 35: waveform shaping circuit; 36: input circuit; 37: A/D conversion circuit; 38, 39: input circuit; 40: A/D conversion circuit; 41: ignition circuit; 42 : fuel injector drive circuit; 43: motor drive circuit; 44: ROM; 45: RAM; 46: placement monitoring timer; 50: central processing unit (CPU); 51: engine speed calculation department; 52: throttle opening Calculation section; 53: Vehicle speed calculation section; 54: Battery voltage calculation section; 55: Automatic stop and automatic start control section; 60: Ignition coil; 61: Fuel injector; 62: Starter motor; 70: Brake signal input terminal; 71: Start signal input terminal; 72: Crankshaft pulse input terminal; 73: Throttle opening signal input terminal; 74: Vehicle speed signal input terminal; 75: Battery voltage signal input terminal; BS: Brake signal; NE: Engine speed; SS: starting signal; TH: throttle opening; VB: battery voltage; VS: vehicle speed.

Detailed ways

Referring to FIG. 1 , the configuration of a saddle-riding vehicle equipped with an engine automatic stop and automatic start control device according to an embodiment will be described.

FIG. 1 shows a side view of a saddle-riding vehicle equipped with an engine automatic stop and automatic start control device of an embodiment. Engine 10 drives rear wheels 15 . The throttle valve 11 adjusts the amount of intake air to the engine 10 . The vehicle speed sensor 17 generates a pulse signal having a period corresponding to the rotation speed of the front wheels 16 . The generated pulse signal is input to an electronic control unit (ECU) 30 . When the occupant gets out of the vehicle, the side stand 18 is brought into the upright state so that the vehicle can stand on its own. During driving, the side stand 18 is set to the stowed state. Instead of the side supports 18, it is also possible to provide a central support.

Brake operation is performed by the brake levers 20 provided on the left and right handlebars. A brake signal indicating the state of a brake switch that is opened and closed in conjunction with the brake lever 20 is input to the ECU 30 . When the occupant holds the brake lever 20, the brake switch is turned on, and when the brake lever 20 is released, the brake switch is turned off.

The right handle is equipped with a throttle handle 21 . The opening degree of the throttle valve 11 is controlled by the rotation of the throttle handle 21 . The handle is equipped with a start switch 22 . By operating the start switch 22 , a start signal is input to the ECU 30 . The battery 25 supplies electric power to the ECU 30 , a starter motor, and the like. The voltage sensor 26 measures the voltage of the battery 25 and inputs the measurement result to the ECU 30 .

Next, the functions of the ECU 30 will be described with reference to FIG. 2 . The functions of the engine automatic stop and automatic start control device of the embodiment are realized by the ECU 30 .

FIG. 2 shows a block diagram of the ECU 30 and an equivalent circuit diagram of a circuit including the brake switch 23 . A closed circuit is formed by the battery 25 , the brake switch 23 and the brake light 24 . The brake switch 23 is opened and closed in conjunction with the brake lever 20 ( FIG. 1 ). When the brake switch 23 is closed, the brake lamp 24 is illuminated.

A brake signal that varies in accordance with opening and closing of the brake switch 23 is input to a brake signal input terminal 70 of the ECU 30 . A start signal corresponding to the operation of the start switch 22 is input to a start signal input terminal 71 of the ECU 30 . The crank angle sensor 27 generates a crank pulse according to the rotation of the crankshaft of the engine 10 ( FIG. 1 ). The generated crank pulse is input to a crank pulse input terminal 72 of the ECU 30 .

The throttle opening sensor 28 generates a throttle opening signal corresponding to the opening of the throttle valve 11 ( FIG. 1 ). The throttle opening signal is input to a throttle opening signal input terminal 73 of the ECU 30 . The vehicle speed sensor 17 generates a vehicle speed signal corresponding to the vehicle speed. The vehicle speed signal is input to a vehicle speed signal input terminal 74 of the ECU 30 . The voltage sensor 26 outputs a battery voltage signal corresponding to the voltage of the battery 25 . This battery voltage signal is input to a battery voltage signal input terminal 75 of the ECU 30 .

The brake signal input to the brake signal input terminal 70 is filtered by the input circuit 31, and then input to the A/D conversion circuit 32 to be A/D converted. The A/D-converted brake signal BS is input to a central processing unit (CPU) 50 . The activation signal input to the activation signal input terminal 71 is filtered by the input circuit 33 . The filtered start signal SS is input to the CPU 50 .

The crank pulse input to the crank pulse input terminal 72 is input to the CPU 50 after filtering by the input circuit 34 and waveform shaping by the waveform shaping circuit 35 . The engine speed calculation unit 51 of the CPU 50 calculates the engine speed NE from the waveform-shaped crank pulses.

The throttle opening signal input to the throttle opening signal input terminal 73 is filtered by the input circuit 36 and A/D converted by the A/D conversion circuit 37 , and then input to the CPU 50 . The throttle opening calculation unit 52 of the CPU 50 calculates a throttle opening TH from the throttle opening signal.

The vehicle speed signal input to the vehicle speed signal input terminal 74 is filtered by the input circuit 38 and then input to the CPU 50 . The vehicle speed calculation unit 53 of the CPU 50 calculates the vehicle speed VS from the vehicle speed signal.

The battery voltage signal input to the battery voltage signal input terminal 75 is filtered by the input circuit 39 and A/D converted by the A/D conversion circuit 40 , and then input to the CPU 50 . The battery voltage calculation unit 54 of the CPU 50 calculates the battery voltage VB based on the battery voltage signal.

The CPU 50 also includes an automatic stop and automatic start control section 55 . The automatic stop and automatic start control unit 55 controls the automatic stop and automatic start of the engine 10 ( FIG. 1 ) based on various vehicle information of the saddle-riding vehicle. Next, detailed processing by the automatic stop and automatic start control unit 55 will be described with reference to FIGS. 3 and 4 .

The ECU 30 includes an ignition circuit 41 , an injector drive circuit 42 , a motor drive circuit 43 , a ROM 44 , a RAM 45 , and an idle monitoring timer 46 .

The ROM 44 stores computer programs for realizing the functions of the engine speed calculation unit 51 , the throttle opening calculation unit 52 , the vehicle speed calculation unit 53 , the battery voltage calculation unit 54 , and the automatic stop and automatic start control unit 55 of the CPU 50 . The RAM 45 stores various data used in the processing of the automatic stop and automatic start control unit 55 . For example, storage areas for a flag for identifying whether the engine is automatically stopped, a flag for identifying whether the engine is automatically started, etc. are secured in the RAM 45 . The automatic stop and automatic start control section 55 performs setting of the left monitoring timer 46 and detection of expiration of the left monitoring timer 46 .

The ignition circuit 41 drives the ignition coil 60 . The injector driving circuit 42 drives the injector 61 . The motor drive circuit 43 drives the starter motor 62 . The ignition circuit 41 , the injector drive circuit 42 and the motor drive circuit 43 are controlled by the CPU 50 .

Next, the processing of the automatic stop and automatic start control unit 55 ( FIG. 2 ) will be described with reference to FIGS. 3 and 4 .

FIG. 3 shows a flowchart of the automatic stop and automatic start control process executed by the automatic stop and automatic start control section 55 ( FIG. 2 ). The automatic stop and automatic start control process is activated at regular intervals, for example, at intervals of 100 ms.

After starting the automatic stop and automatic start control process, in step S01, it is determined whether the automatic stop state is "automatically stopped". The automatic stop state is recognized by, for example, an automatic stop flag of the RAM 45 (FIG. 2). When the automatic stop state is "automatically stopped", in step S11, an engine automatic start determination process is executed. The details of the automatic start determination processing will be described later with reference to FIG. 4 .

When it is determined in step S01 that the automatic stop state is "not in automatic stop", in step S02 it is determined whether or not the automatic stop process of the engine is being executed. If the automatic stop process is not being executed, it is determined in step S03 whether or not the engine is stopped. Specifically, if the engine speed NE ( FIG. 2 ) is 0, it is determined that the engine is being stopped, and when the engine speed NE is not 0, it is determined that the engine is not stopped.

When it is determined in step S03 that the engine is not stopped, it is determined in step S04 whether the vehicle speed VS ( FIG. 2 ) satisfies the automatic stop condition. For example, when the current vehicle speed VS is equal to or less than the automatic stop determination threshold value of the vehicle speed, it is determined that the automatic stop condition is satisfied.

When it is determined in step S04 that the vehicle speed VS satisfies the automatic stop condition, it is determined in step S05 whether the engine speed NE ( FIG. 2 ) satisfies the automatic stop condition. For example, when the current engine rotation speed NE is equal to or less than the automatic stop determination threshold value of the rotation speed, it is determined that the automatic stop condition is satisfied. As the automatic stop determination threshold value of the rotation speed, for example, an idle rotation speed is used.

If it is determined in step S05 that the engine speed NE satisfies the automatic stop condition, in step S06 it is determined whether the throttle opening TH ( FIG. 2 ) satisfies the automatic stop condition. For example, when the current throttle opening TH is equal to or less than the automatic stop determination threshold of the throttle opening, it is determined that the automatic stop determination condition is satisfied. As the automatic stop determination threshold value of the throttle opening, for example, the throttle opening during idling is used.

When it is determined in step S06 that the throttle opening TH satisfies the automatic stop condition, in step S07 an automatic stop process is executed. As an example, in the automatic stop process, fuel cutoff and ignition cutoff are executed. After the automatic stop process is executed, in step S08, the leaving monitoring timer 46 (FIG. 2) is set, and the process ends. The leaving monitoring timer 46 starts counting at the same time as it is set. The unattached monitoring timer 46 expires when a predetermined unattended determination threshold has passed. As the leaving determination threshold, for example, 3 minutes is adopted.

When it is determined in step S03 that the engine is stopped, the process ends after setting the unused monitoring timer 46 in step S08. The flow of this processing corresponds to the case where the engine is stopped for reasons other than automatic stop.

In steps S04 to S06, if it is determined that at least one of the vehicle speed VS, the engine speed NE, and the throttle opening TH does not satisfy the automatic stop condition, the automatic stop process in step S07 is not executed, and in step S08 , set placement watchdog timer 46. As a result, the engine 10 ( FIG. 1 ) continues to be driven.

When it is determined in step S02 that the automatic stop process is being executed, it is determined in step S09 whether or not the engine is stopped. This determination condition is the same as that of step S03. If the engine is not stopped, in step S07, the automatic stop process is continued.

When it is determined in step S09 that the engine is stopped, in step S10, the automatic stop state is set to "automatic stop". After the automatic stop state is set to "automatic stop", in step S08, the left-behind monitoring timer 46 is set, and the process ends. After setting the automatic stop state to "automatic stop", when step S01 is executed in the next cycle, it is determined that the automatic stop state is "automatic stop". Therefore, in the next cycle, the automatic engine start determination process of step S11 is executed.

FIG. 4 shows a flowchart of the engine automatic start determination process executed in step S11 ( FIG. 3 ). First, in step S12, it is determined whether or not the automatic activation state is "automatic activation". When the automatic start state is "automatic start", in step S13, it is determined whether or not the engine speed NE ( FIG. 2 ) satisfies the start determination condition. For example, when the engine speed NE is equal to or greater than the start determination threshold, it is determined that the start determination condition is satisfied.

When it is determined in step S13 that the engine speed NE satisfies the start determination condition, in step S14 the automatic engine start process is terminated. For example, the drive of the starter motor 62 ( FIG. 2 ) is stopped. Then, in step S15, the automatic stop state is set to "not in automatic stop", and in step S16, the automatic start state is set to "not in automatic start".

After step S16, in step S17, the current battery voltage VB is set as the battery voltage monitoring initial value. Furthermore, in step S18, the leaving monitoring timer 46 is set. After the leaving monitoring timer 46 is set, it starts counting from the initial value.

When it is determined in step S13 that the engine speed NE does not satisfy the start determination condition, step S17 is performed without performing steps S14 to S16. In the flow of this processing, the automatic start processing of the engine is continued.

If it is determined in step S12 that the automatic start state is "non-automatic start", in step S19 it is determined whether or not the throttle opening TH ( FIG. 2 ) satisfies the automatic start condition. For example, when the current throttle opening TH is equal to or greater than the automatic start determination threshold of the throttle opening, it is determined that the throttle opening TH satisfies the automatic start condition.

If it is determined in step S19 that the throttle opening TH satisfies the automatic start condition, in step S30 an automatic start process is executed. In the automatic start process, for example, the starter motor 62 ( FIG. 2 ) is driven, and the fuel injection command output from the injector drive circuit 42 ( FIG. 2 ) and the ignition output from the ignition circuit 41 ( FIG. 2 ) are permitted. After executing the automatic activation process, in step S31, the automatic activation state is set to "automatic activation". After setting the automatic activation state to "automatic activation", when step S11 is activated in the next cycle, in step S12, it is determined that the automatic activation state is "automatic activation". Therefore, step S13 is executed in the next cycle.

When it is determined in step S19 that the throttle opening TH does not satisfy the automatic start condition, in step S20 it is determined whether or not the idle state determination condition is satisfied. The judging process of whether or not the left state judging condition is satisfied includes steps S21 to S25.

In step S21, it is determined whether or not the brake switch 23 (FIG. 2) is in the OFF state. That is, it is determined whether or not a brake operation is being performed. This decision is made on the basis of the brake signal BS (FIG. 2). When the brake switch 23 is in the ON state, that is, when the brake lever 20 ( FIG. 1 ) is gripped and the brake operation is performed, it is determined that the left state determination condition is not satisfied.

When it is determined in step S21 that the brake switch 23 is in the OFF state, it is determined in step S22 whether the throttle opening TH ( FIG. 2 ) is equal to or less than the automatic start prohibition determination threshold. For example, the idle opening is used as the automatic start prohibition determination threshold of the throttle opening. When the current throttle opening TH exceeds the automatic start prohibition determination threshold, that is, when the occupant is operating the throttle handle 21 ( FIG. 1 ), it is determined that the idle state determination condition is not satisfied.

When it is determined in step S22 that the throttle opening TH is equal to or less than the automatic start prohibition determination threshold, in step S23 it is determined whether the vehicle speed VS ( FIG. 2 ) is equal to or less than the automatic start prohibition determination threshold. The automatic start prohibition threshold of the vehicle speed is, for example, the same value as the automatic stop threshold, which is a criterion for determining whether the vehicle speed satisfies the automatic stop condition (step S04 ). When the current vehicle speed VS exceeds the automatic start prohibition determination threshold, that is, when the vehicle is not stopped, it is determined that the left state determination condition is not satisfied.

When it is determined in step S23 that the vehicle speed VS is equal to or less than the automatic start prohibition determination threshold, it is determined in step S24 whether the battery voltage change is equal to or less than the voltage fluctuation range threshold. More specifically, it is determined whether or not the difference between the battery voltage monitoring initial value and the current battery voltage VB ( FIG. 2 ) is equal to or less than a voltage fluctuation range threshold. As the battery voltage monitoring initial value, the battery voltage VB at the last startup time of the automatic stop and automatic start control process (FIG. 3) is used. In the automatic stop and automatic start control process, when the change in battery voltage from the previous startup exceeds the voltage fluctuation range threshold value, it is determined that the unused state determination condition is not satisfied. The change in battery voltage exceeding the voltage change threshold means that electrical loads such as headlights are in a working state.

When it is determined in step S24 that the change in the battery voltage is equal to or less than the voltage fluctuation range threshold value, in step S25 it is determined whether or not the starter switch 22 ( FIG. 2 ) is off. This determination is made based on the start signal SS. When the starter switch 22 is in the ON state, it is determined that the unused state determination condition is not satisfied. When the starter switch 22 is in the OFF state, it is determined that the unused state determination condition is satisfied.

As described above, among the conditions related to the brake switch 23 ( FIG. 2 ) determined in step S21 , the conditions related to the throttle opening TH determined in step S22 , the conditions related to the vehicle speed VS determined in step S23 , When both the condition related to the battery voltage change determined in step S24 and the condition related to the start switch 22 determined in step S25 are satisfied, it is determined that the unused state determination condition is satisfied. In addition, it is possible to omit a part of the determination processing in steps S21 to S25. For example, steps S22 to S25 may be omitted, and it may be determined whether or not the left state determination condition is satisfied by only the determination process of step S21.

When it is determined in step S20 that the unused state determination condition is not satisfied, in step S28 , the battery voltage VB at the present time is set as the battery voltage monitoring initial value. Furthermore, in step S29, the leaving monitoring timer 46 (FIG. 2) is set. Thereby, the leaving monitoring timer 46 starts counting from the initial value.

When it is determined in step S20 that the leaving state determination condition is satisfied, in step S26 , it is determined whether the leaving monitoring timer 46 has expired. If the idle watchdog timer 46 has not expired, the processing is directly terminated.

When it is determined in step S26 that the unused monitoring timer 46 has expired, in step S27, automatic start prohibition processing is executed. The unattached monitoring timer 46 expires after a time corresponding to an unattended determination threshold has elapsed from the set time. Therefore, when the duration of the state that satisfies the unused state determination condition reaches the unused determination threshold, the automatic start prohibition process of step S27 is executed.

After the automatic start prohibition process is executed, the automatic start process of the engine is not started. Therefore, the engine 10 ( FIG. 1 ) is not automatically started even if an operation satisfying the automatic start condition, for example, an operation of turning the throttle handle 21 ( FIG. 1 ), is performed. As an example, the automatic start prohibition process includes a process of setting the automatic stop state to "not in automatic stop". After setting the automatic stop state to "not in automatic stop", in step S01 ( FIG. 3 ), it is determined that the automatic stop state is not "in automatic stop". Therefore, the engine automatic start determination process of step S11 is not executed, and the automatic start process of step S30 is not started either.

In the above-mentioned embodiment, the conditions for judging the idle state include the following conditions: the brake is not operated; the throttle opening is below the automatic start prohibition judgment threshold; the vehicle speed is below the automatic start prohibition judgment threshold; the battery voltage fluctuation range is within the voltage fluctuation range below the threshold; and the starter switch is open. The left state determination condition does not include the condition that "the passenger is not seated". In this way, it is not necessary to determine whether the occupant is seated, but whether the vehicle is placed or not is determined. Since a sensor for detecting whether or not an occupant is seated is unnecessary, cost reduction of the vehicle can be achieved. When the state that satisfies the left state judging condition continues for a longer time than the left judging threshold value, the automatic start process of the engine is prohibited, so even if the vehicle is left in the state where the engine is automatically stopped, it is possible to avoid damage to the throttle handle by a third person. Automatic starting of the engine caused by operation.

As mentioned above, although this invention was demonstrated based on an Example, this invention is not limited to these Examples. It is obvious to those skilled in the art that various changes, improvements, combinations, etc. can be made, for example.

Claims (5)

1. a kind of engine automatic stop of saddle-ride type vehicle and automatic start-control device, the engine automatic stop and automatic Start-control device has the processing unit being automatically stopped with self-drive control for carrying out engine, when satisfaction is automatically stopped During condition, what processing unit execution made engine automatic stop is automatically stopped processing, in the engine in stopping automatically When meeting automatic starting conditions in the case of only, the processing unit execution makes at the automatic starting of the automatic engine start It manages, the engine automatic stop and automatic start-control device are characterized in that,

Also there is brake signal input terminal, which is entered the corresponding signal of operation with brake,

In being automatically stopped of the engine, the duration for meeting the state of placement status decision condition has reached placement After decision threshold, the processing unit execution forbids automatic start of the execution of the automatic start up process to forbid handling,

The placement status decision condition includes following condition：The brake is not operated.

2. the engine automatic stop of saddle-ride type vehicle according to claim 1 and automatic start-control device,

The engine automatic stop and automatic start-control device, which also have, to be entered air throttle corresponding with throttle opening and opens The throttle opening amount signal input terminal of signal is spent,

The placement status decision condition also includes following condition：The throttle opening automatic starting forbid decision threshold with Under.

3. the engine automatic stop of saddle-ride type vehicle according to claim 1 or 2 and automatic start-control device,

The engine automatic stop and automatic start-control device also have the speed for being entered speed signal corresponding with speed Signal input terminal,

The placement status decision condition also includes following condition：The speed forbids below decision threshold in automatic starting.

4. the engine automatic stop of saddle-ride type vehicle according to claim 1 or 2 and automatic start-control device,

The engine automatic stop and automatic start-control device, which also have, is entered cell voltage letter corresponding with cell voltage Number battery voltage signal input terminal,

The placement status decision condition also includes following condition：The amplitude of fluctuation of the cell voltage is in variation in voltage amplitude threshold Value is following.

5. the engine automatic stop of saddle-ride type vehicle according to claim 1 or 2 and automatic start-control device,

The engine automatic stop and automatic start-control device, which also have, is entered the corresponding starting of operation with firing switch The start signal input terminal of signal,

The placement status decision condition also includes following condition：The firing switch is off.