JP2001342868A - Device for controlling in stopping vehicular engine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To urge a driver to close an opening/closing structure by making the driver clearly recognize automatic stopping state of an engine and also making recognize a cause of incapability of engine start being opening of the opening/closing structure. SOLUTION: This device for controlling in stopping a vehicular engine comprises an automatic starting and stopping control device controlling such that the engine is automatically stopped when an automatic stopping condition is reached during running of the engine mounted to the vehicle while being automatically started when an automatic starting condition is reached during automatic stopping of the engine. This device also comprises an opening detecting means for detecting opening of the opening/closing structure mounted to the vehicle so as to be capable of being freely opened/closed, an alarming means for alarming the driver, a running disabling means for disabling the automatic starting and stopping control device, and a control means for controlling to make at least one of the alarming means and the running disabling means operate when the opening/closing structure is detected to be opened by the opening detecting means during automatic stopping of the engine by the automatic starting and stopping control device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular engine stop control device, and more particularly to a vehicular engine stop control device that allows a driver to clearly recognize the automatic stop state of the engine.

[0002]

2. Description of the Related Art There are vehicles equipped with an engine as a power source and vehicles equipped with an engine and a motor generator having a drive function and a power generation function. A vehicle equipped with an engine runs by driving the engine. Also, a so-called hybrid vehicle equipped with an engine and a motor generator drives and drives the motor generator based on the vehicle operation state and the engine operation state, assists the engine by driving operation, and collects energy by power generation operation. are doing.

In order to stop an engine mounted on a vehicle as a power source as described above, the engine is usually stopped by turning off an ignition key.

[0004] Some vehicles are provided with an automatic start / stop control device for controlling the engine to start and stop automatically. The automatic start / stop control device for a vehicle equipped with an engine automatically stops the engine when an automatic stop condition such as no depression of the accelerator pedal is satisfied while the vehicle is stopped at a traffic light or the like, and automatically starts the vehicle by a start operation or the like during the automatic stop. Control is performed to automatically start the engine when the start condition is satisfied. In an automatic start / stop control device for a hybrid vehicle equipped with an engine and a motor / generator, the engine is automatically started when the voltage of the battery for the motor / generator drops during automatic stop.

As such an automatic start / stop control device, there is one disclosed in Japanese Patent Application Laid-Open No. 58-28575. When a failure occurs in various sensors that detect the operation state of each part of the vehicle, a display element such as a lamp blinks in a predetermined notification pattern corresponding to the failed sensor. In addition, an audio warning is issued in synchronization with the blinking operation.

[0006]

By the way, the state in which the engine mounted on the vehicle is stopped includes the state in which the ignition key is turned off as described above,
There is a state in which the automatic start / stop control device automatically stops at a signal or the like. In a state where the automatic stop is performed by the automatic start and stop control device, the engine is automatically started when the automatic start condition is satisfied.

However, for the driver, whether the engine is stopped by turning off the ignition key or automatically stopped by the automatic start / stop device is not limited to the state in which the engine is stopped. Not clear.

[0008] For this reason, the driver cannot clearly recognize the automatic stop state of the engine, so that the driver can freely open and close the fuel lid, the hood of the engine room, the trunk lid of the trunk room, etc., which can be freely opened and closed, provided in the vehicle. There is a problem of opening the structure.

[0009]

SUMMARY OF THE INVENTION Therefore, in order to eliminate the above-mentioned disadvantages, the present invention automatically stops the engine mounted on a vehicle when an automatic stop condition is satisfied during operation of the engine. An automatic start / stop control device for controlling the automatic start of the engine when the automatic start condition is satisfied during the automatic stop of the vehicle is provided, and that the arbitrarily openable / closable structure provided in the vehicle is opened. Providing an opening detection means for detecting, providing alarm means for giving an alarm to the driver of the vehicle, providing inoperability means for disabling the automatic start / stop control device, and automatically stopping the engine by the automatic start / stop control device If the opening detection means detects that the opening / closing structure has been opened during the operation, at least one of the alarm means and the inoperable means is operated. Characterized in that a control means for controlling.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In a vehicle engine stop control apparatus according to the present invention, a control means detects that an opening / closing structure has been opened by an opening detection means during an automatic stop of an engine by an automatic start / stop control apparatus. In such a case, by controlling at least one of the alarm means and the inoperable means to operate, when the opening / closing structure is opened during the automatic stop of the engine, an alarm is issued to the driver by the operation of the alarm means. Alternatively, the operation of the automatic start / stop control device can be disabled by the operation of the inoperable means so that the engine cannot be automatically started.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show an embodiment of the present invention. In FIG. 3, reference numeral 2 denotes an engine mounted on a vehicle (not shown), reference numeral 4 denotes a clutch, and reference numeral 6 denotes a manual transmission. A transmission 6 is connected to the engine 2 via a clutch 4. The transmission 6 includes a plurality of speed change gears (not shown) of, for example, a fifth speed.

The engine 2 is provided with a motor generator 8 (hereinafter referred to as "motor") having a driving function and a power generation function, which are directly connected. The motor 8 has a rotor and a stator coil, and is provided directly connected to a flywheel side of a crankshaft (not shown) of the engine 2. The motor 8
May be directly connected to the crankshaft side of the crankshaft. Therefore, this vehicle is a so-called hybrid vehicle equipped with the engine 2 and the motor 8 directly connected to the engine 2.

The engine 2 includes an alternator 10 for power generation, an air conditioner compressor 12 for an air conditioner, a starter motor 14 for starting, a sub-radiator fan 18 of a sub-radiator 16 for cooling the motor 8, and an electric water pump 2.
0 is provided. The alternator 10 and the air conditioner compressor 12 are provided in communication with a crankshaft by a pulley and a belt (not shown). The starter motor 1
Reference numeral 4 is provided in communication with the flywheel by a detachable pinion (not shown) and a ring gear.

The operating state of the engine 2 mounted on the hybrid vehicle is controlled by engine control means 22 constituting an engine control device.
The automatic start and automatic stop are controlled by an automatic start and stop control means 24 which constitutes an automatic start and stop control device built therein. The driving state and the power generation state of the motor 8 connected to the engine 2 are controlled by motor control means 26 constituting a motor control device.

The engine 2 has an engine control signal line 28.
And is connected to the engine control means 22 by. The engine control unit 22 is connected to the sub-battery 32 by an engine control unit power line 30. The sub-battery 32 is connected to the alternator 10 by a sub-battery charging power line 34, and is connected to the starter motor 14, the sub-radiator fan 18, and the electric water pump 20 by a sub-battery driving power line 36. The sub-battery 32 includes the alternator 10
And supplies driving power to the starter motor 14, the sub-radiator fan 18, and the electric water pump 20.

The motor 8 has a motor control signal line 38.
Is connected to the motor control means 26 by means of. The motor control means 26 is connected to the sub-battery 32 by a motor control means sub-power line 40 and connected to the main battery 44 by a motor control means main power line 42. The main battery 44 supplies drive power to the motor 8 and is charged by the power generated by the motor 8.

The engine control means 22 for controlling the engine 2 includes a fuel injection control unit, an ignition timing control unit, an ISC
(Idle speed) A control unit (not shown) and the like are provided, and the injector 66, the ignition coil / igniter 68, and the like are driven by signals input from an engine speed sensor 50, a water temperature sensor 52, and the like, which will be described later, and the fuel of the engine 2 is The injection amount, ignition timing, and the like are controlled according to the operation state.

As shown in FIG. 4, the automatic start / stop control means 24 for automatically starting and stopping the engine 2 includes an ignition switch 46, an eco-run switch 48, an engine speed sensor 50, and a water temperature sensor 5 on the input side.
2, vehicle speed sensor 54, electric load 56, idle switch 58, auxiliary battery voltage detector 60, first clutch switch 6
2. A second clutch switch 64 is connected and provided, and an injector 66, an ignition coil / igniter 68, an ISC valve 70, and the starter motor 14 are connected and provided on the output side.

The first clutch switch 62 is turned off in a state in which the clutch 4 is completely engaged by releasing the clutch pedal (not shown), and the clutch 4 is depressed by releasing the clutch pedal. The switch is turned on immediately before the clutch is gradually released from the completely connected state to be in the semi-connected state, and is turned on until the clutch pedal is fully depressed and the clutch 4 is completely released.

The second clutch switch 64 operates the clutch 4 when the clutch pedal is fully depressed.
When the clutch pedal is completely released, the clutch 4 is turned off immediately after the clutch pedal is returned from the full depression, and the clutch 4 is gradually engaged from the completely released state and turned on immediately before the clutch 4 is half-coupled. It is on until the clutch 4 is completely engaged.

The automatic start / stop control means 24 determines the automatic start condition and the automatic stop condition based on signals input from the ignition switch 46, the eco-run switch 48 and the like, and determines whether the automatic start condition and the automatic stop condition are satisfied or not. Ignition coil / igniter 68,
The ISC valve 70 and the starter motor 14 are driven and stopped, respectively, so that the engine 2 is controlled to start and stop automatically.

Motor control means 2 for controlling the motor 8
Reference numeral 6 denotes a motor control unit 72, a motor driving unit 74, an input / output processing unit (interface) 76, and the like. The ignition switch 46, the engine speed sensor 5
0, water temperature sensor 52, vehicle speed sensor 54, idle switch 58, first clutch switch 62, second clutch switch 64, intake pressure sensor 78, accelerator sensor 8
0, a brake switch 82, a starter switch 84, a main battery voltage detector 86, and an auxiliary input (AUX) 88 are connected, and the motor 8 is connected to an output side.

The motor control means 26 changes the driving state and the power generation state of the motor 8 independently of the control of the engine 2 by the engine control means 22 based on signals input from the ignition switch 46, the engine speed sensor 50 and the like. Is controlled based on the driving state of the hybrid vehicle and the driving state of the hybrid vehicle.

The engine control means 22 including the automatic start / stop control means 24 for automatically starting and automatically stopping the engine 2 includes a stop time control means 90 which constitutes a control means of the vehicle engine stop time control device. Provided.

The stop-time control means 90 includes a fuel lid (not shown) that covers a fuel filler as an open detecting means for detecting that an arbitrarily openable and closable opening / closing structure mounted on the hybrid vehicle is opened. A fuel lid switch 92 for detecting that the vehicle has been operated, a hood switch 94 for detecting that a hood (not shown) covering the engine room has been opened, and an opening of a trunk lid (not shown) covering the trunk room. And a trunk lid switch 96 to be detected.

The stop-time control means 90 is provided with an alarm means 98 such as a buzzer for giving an alarm to the driver.
The inoperable means 100 for inactivating the automatic start / stop control means 24 is connected and provided.

The stop-time control means 90 is an opening / closing structure by a bonnet switch 92, a fuel lid switch 94, and a trunk lid switch 96, which are open detecting means, while the engine 2 is automatically stopped by the automatic start / stop control means 24. When it is detected that any one of the fuel lid, the bonnet and the trunk lid is opened, control is performed so that at least one of the alarm means 98 and the inoperable means 100 is operated.

In this embodiment, when it is detected that the fuel lid is opened by the fuel lid switch 92, the inoperability means 100 is operated to disable the automatic start / stop control means 24 by shutting down, and the engine 2 is automatically operated. When the hood switch 94 detects that the bonnet has been opened, the inoperable means 100 is operated to disable the automatic start / stop control means 24 by the system lock, thereby starting the engine 2 automatically. When the trunk lid switch 96 detects that the trunk lid has been opened, the alarm means 98 is operated to generate an alarm.

Next, the operation of this embodiment will be described.

As shown in FIG. 2, the automatic start / stop control means 24 of the automatic start / stop control device, when the engine 2 is driven and the running hybrid vehicle is decelerated and stopped, when the automatic stop condition is satisfied, , So that the engine 2 is automatically stopped.

As shown in FIG. 1, when the control is started during the automatic stop of the engine 2 by the automatic start / stop control means 24 (102), the stop control means 90 of the vehicle engine stop time control device is automatically stopped. The control unit 24 determines whether the automatic stop condition is satisfied and the engine 2 is automatically stopped (104).

If the judgment (104) is NO, the process jumps to the return (122). If this determination (104) is YES, it is determined whether or not the fuel lid is opened by the fuel lid switch 92 (10).
6).

If the determination (106) is YES, the inoperable means 100 is operated to control the automatic start / stop control means 2
Then, the engine 4 is made inoperable (shut down) so that the engine 2 cannot be automatically started (108), and the operation is ended (110).

If the judgment (104) is NO, it is judged whether the hood is opened by the hood switch 94 (112). This judgment (112) is YES
In the case of (1), the inoperability means 100 is operated to make the automatic start / stop control means 24 inoperable (system lock) to control the automatic start of the engine 2 to be prohibited (114).
The process returns to the judgment (106).

If the determination (112) is NO, it is determined whether the trunk lid is opened by the trunk lid switch 96 (116). This judgment (116)
If the answer is YES, control is performed so that the alarm means 98 is operated to issue an alarm by sounding a buzzer or the like (118). If the determination (116) is NO, control is performed to stop the operation of the alarm means 98 and stop the sounding of the buzzer or the like (1).
20), and return (122).

After the fuel lid is opened and the automatic start / stop control means 24 is made inoperable (108) by shutting down, as shown in FIG. 2, the fuel lid is closed and the ignition switch 46 is turned on by an ignition key. Automatic start / stop control means 2
The engine 2 can be started by restarting the engine 4 and turning on the starter switch 84 by the ignition key.

As described above, in this vehicle engine stop time control device, the trunk lid is opened by the trunk lid switch 96 by the stop time control means 90 during the automatic stop of the engine 2 by the automatic start / stop control means 24. When the fuel lid or hood is opened by the fuel lid switch 92 or the bonnet switch 94, the operation is activated. By the operation of the disabling means 100, the automatic start / stop control means 24 can be disabled so that the engine 2 cannot be started.

That is, the vehicle engine stop-time control device comprises:
When the fuel lid, bonnet and trunk lid are opened while the engine 2 is automatically stopped by the automatic start / stop control means 24, an alarm is sounded or the system is locked / shut down.

When the running hybrid vehicle decelerates and stops and the automatic stop condition is satisfied, the automatic start / stop control means 24 stops the engine 2. During this automatic stop, the automatic start / stop control means 24 continues the operation of the system. When the voltage of the main battery 44 decreases during the automatic stop, the automatic start / stop control unit 24 automatically starts the engine 2 when the automatic start condition is satisfied, and starts the charging operation.

If the fuel lid is opened before refueling and the hood is opened to check the inside of the engine room before starting the automatic start operation, a warning is sounded by sounding a buzzer or the like, The engine 2 is not started due to shutdown or system lock. When the trunk lid is opened to check the inside of the trunk room, an alarm is issued to warn the driver not to travel.

When the fuel lid, bonnet, and trunk lid are all closed, the alarm is stopped, the system lock is released, or the system can be restarted.

For this reason, the vehicle engine stop-time control device can make the driver clearly recognize that the engine 2 is in the automatic stop state by the warning means 98,
Alternatively, it is possible to make the driver recognize that the cause of the inability to start the engine 2 by the inoperable means 100 is the opening of the fuel lid or the hood, thereby prompting the driver to close the opened fuel lid or the hood. Can do it.

In this embodiment, (1) in FIG.
As shown in FIG. 08), when the fuel lid is opened, the automatic start / stop control means 24 is shut down to disable the operation. However, as shown by the dashed arrow in FIG. 1, the automatic start / stop control means 24 is locked by the system lock (114). Can also be disabled. In this case, the system lock by the inoperable means 100 is released by closing the fuel lid, so that the automatic start / stop control means 2
4, the engine 2 that is automatically stopped can be automatically started.

In this embodiment, (1) in FIG.
As shown in FIG. 14), when the hood is opened, the inoperable means 100 is operated to control the automatic start / stop control means 24.
The system is locked to disable operation. However, the automatic start / stop control means 24 can be disabled and the alarm means 98 can be activated at the same time to issue an alarm to the driver, as shown in FIG. Instead of disabling the control means 24, the warning means 98 may be operated to issue only a warning to the driver.

Furthermore, in this embodiment, a hybrid vehicle equipped with the engine 2 and the motor 8 has been exemplified. However, a normal vehicle equipped with the engine, the engine is automatically stopped when the vehicle is stopped by the automatic start low control device. The present invention can also be applied to a vehicle that does. Further, the system is shut down by detecting that the fuel lid has been opened by the fuel lid switch 92, but the system may be shut down by detecting that the fuel cap has been opened.

It should be noted that the present invention is not limited to the above-described embodiment, and various modifications can be made. For example,
In the above-described embodiment, a warning is issued or the engine 2 cannot be started by opening the fuel lid, the hood, and the trunk lid. However, a door switch for detecting that the driver's seat side door has been opened is provided. When it is detected that the driver has opened the door, a warning can be issued or the engine 2 cannot be started, and a seat switch for detecting that the driver has sat on the driving seat is provided, When the seat switch detects that the driver gets off the vehicle, a warning can be issued or the engine 2 cannot be started.

Further, in the above-described embodiment, an alarm is issued by sounding a buzzer or the like as the alarm means 98, but the specific name of the opening / closing structure opened during the automatic stop is broadcasted by audio to issue an alarm. The warning can be issued, the contents of the warning can be easily understood, and the warning means 98 is used to warn that the start of the engine 2 is started at the time of the automatic start, and to perform the self-diagnosis of the system. The results can be reported. Furthermore, when an alcohol sensor is provided and alcohol is detected, a warning can be issued or the engine 2 cannot be started.

[0048]

As described above, the vehicle engine stop control device alerts the driver by the operation of the alarm means when the opening / closing structure is opened during the automatic stop of the engine by the automatic start / stop control device. Or the operation of the inoperable means can disable the automatic start / stop control device so that the engine cannot be automatically started.

For this reason, the vehicle engine stop-time control device can make the driver clearly recognize that the engine is in the automatic stop state by the warning means, or that the engine cannot be started by the inoperable means. The driver can be made to recognize that the cause is the opening of the opening / closing structure, and as a result, the driver can be prompted to close the opening / closing structure.

[Brief description of the drawings]

FIG. 1 is a control flowchart of a vehicle engine stop-time control device showing an embodiment of the present invention.

FIG. 2 is a time chart of the vehicle engine stop control device.

FIG. 3 is a schematic configuration diagram of a vehicle engine stop-time control device;

FIG. 4 is a schematic configuration diagram of an automatic start / stop control unit.

[Explanation of symbols]

 2 Engine 4 Clutch 6 Transmission 8 Motor 14 Starter motor 22 Engine control means 24 Automatic start / stop control means 26 Motor control means 32 Secondary battery 44 Main battery 90 Stop control means 92 Fuel lid switch 94 Bonnet switch 96 Trunk lid switch 98 Alarm means 100 Alarm means 100 Inoperable means

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (reference) F02D 29/06 F02D 45/00 345L 45/00 345 B60K 9/00 ZHVE F-term (reference) 3D037 FA23 FB06 FB06 FB07 FB10 FB16 3G084 BA06 BA13 BA16 CA01 DA28 DA29 EB02 EB16 EB24 FA05 FA10 FA11 FA20 FA33 FA35 FA36 3G092 AA01 AB02 AC02 AC03 BA01 BA08 BB01 CA02 CB04 CB05 DC03 DE01S DG07 EA14 EA21 EA28 HA03 GB01 HA03 GB03 HF08Z HF15Z HF19X HF19Z HF20Z HF21Z HF25Z 3G093 AA07 BA04 BA13 BA21 BA22 CA02 CB14 DA01 DA03 DA05 DA06 DA12 DA13 DB05 DB10 DB15 EA05 EA07 EA12 EC01 FA01 FA03 FA12

Claims (5)

[Claims] 1. An engine mounted on a vehicle automatically stops when an automatic stop condition is satisfied during operation of the engine, and automatically starts when the automatic start condition is satisfied during automatic stop of the engine. An automatic start / stop control device for controlling the opening and closing of the arbitrarily openable / closable structure mounted on the vehicle, and an alarm for issuing an alarm to a driver of the vehicle. Means for disabling the automatic start / stop control device, and detecting that the opening / closing structure has been opened by the opening detection means during the automatic stop of the engine by the automatic start / stop control device. A control means for controlling at least one of the alarm means and the inoperable means in the case of the vehicle. Control device. 2. The fuel cell system according to claim 1, wherein the control unit includes a fuel lid switch that detects that a fuel lid that covers a fuel filler provided in the vehicle has been opened, and that detects that the fuel lid has been opened by the fuel lid switch. 2. The vehicle engine stop-time control device according to claim 1, wherein the control device controls the automatic start / stop control device to be inoperable by operating an inoperable means. 3. The vehicle according to claim 1, wherein the vehicle is a hybrid vehicle equipped with an engine and a motor generator having a drive function and a power generation function directly connected to the engine. 4. The control device for a vehicle engine at the time of stop according to claim 1. 4. The vehicle control system according to claim 1, wherein the control unit includes a bonnet switch for detecting that a hood covering an engine room mounted on the vehicle has been opened. 2. The system according to claim 1, wherein the control unit controls the automatic start / stop control device to be inoperable by operating the inoperable means.
4. The control device for a vehicle engine at the time of stop according to claim 1. 5. The control means is provided with a trunk lid switch for detecting that a trunk lid covering a trunk room mounted on a vehicle is opened, and when the trunk lid switch detects that the trunk lid is opened. 2. The control device according to claim 1, wherein the alarm device is controlled to generate an alarm by operating the alarm device.