JP2001278010A - Vehicle controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To minimize the possibility of driving of a vehicle 1 due to a tamper or the like by a child and improve safety when a door lock of the vehicle 1 is unlocked with an on-board controller 35 by receiving an unlock signal from a portable machine 40 and an engine is ready for starting. SOLUTION: This device is provided with the on-board controller 35 for receiving the unlock signal from the portable machine 40 and unlocking the door lock of the vehicle 1, and an ECU 38 for starting the engine by means of an ignition button 14 on the precondition that the unlock signal is already received. When the unlock signal is received, permission of travelling of the vehicle 1 is judged by means of a judging means 35a based on electric field strength of the unlock signal, an operating condition of an ignition key cylinder 13 or a load by an occupant on a driving seat and so on. If the vehicle 1 is in a state where the travelling is not permitted, the starting of the engine is forbidden or the engine is forced to stop at driving of the vehicle 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a vehicle control device provided with a vehicle-mounted controller that receives a signal and unlocks a door of a vehicle or makes an engine startable.

[0002]

2. Description of the Related Art Conventionally, as a vehicle control device of this type, for example, as disclosed in Japanese Patent Application Laid-Open No. 9-71220, a transponder element storing an ID code is incorporated in a card. The door lock mechanism is known to be able to be turned on and off in a non-contact manner, and high security is ensured while enhancing convenience. That is, in this device, the vehicle-mounted controller receives the ID signal transmitted from the transponder element built in the card only when the user holding the card-type portable device approaches the vehicle, and the controller locks the door. It is released. Moreover, if the controller receives the ID signal, the engine can be started only by the user operating the start button in the vehicle compartment.

[0003]

However, in the vehicle control device of the prior art, the door lock is released or the engine can be started only when the user approaches the vehicle, which is convenient. On the other hand, before the user gets on the vehicle, the engine may be started due to mischief of a child, for example, and the vehicle may start moving.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to unlock a vehicle door or start an engine in a non-contact manner in response to an ID signal from a portable device. In such a case, there is a need to minimize the possibility of the vehicle starting due to mischief of a child or the like, thereby improving safety.

[0005]

In order to achieve the above object, the present invention provides means for determining whether or not the vehicle is permitted to travel, and the determination means does not permit the vehicle to travel. When it is determined that the vehicle is in the traveling non-permitted state, the vehicle is forcibly prevented from traveling.

Specifically, according to the first aspect of the present invention, a portable device which is carried outside the vehicle compartment and which can transmit an ID signal, and an ID signal from the portable device is received, and the door of the vehicle is unlocked. Door lock control means for operating the door lock mechanism so that the door lock control means has received an ID signal, and the engine is started in response to the operation of an ignition button disposed in the vehicle interior. A vehicle control device including an engine start control unit for causing the door lock control unit to receive an ID signal and determine whether or not to permit the vehicle to run, on the assumption that the ID signal has been received; When the determining means determines that the vehicle is in a running-non-permitted state in which the running of the vehicle is not permitted, a running-inhibiting means for stopping the running of the vehicle is provided.

With the above arrangement, when the ID signal from the portable device is received by the door lock control means, the door lock mechanism is operated by the door lock control means so that the door of the vehicle is unlocked. On the premise of this, the engine can be started by the engine start control means. Further, the determination means determines whether or not the vehicle is permitted to travel, and when it is determined that the vehicle is not permitted to travel, the travel inhibiting means forcibly drives the vehicle. Is blocked. Thereby, even if the engine is started by the mischief of a child before the user having the portable device arrives in the driver's seat, the possibility that the vehicle will start thereafter is minimized, and safety is reduced. Is improved.

Here, various configurations can be considered as the configuration of the determination means. In particular, in order to prevent the vehicle from moving even when the user is outside the vehicle compartment, the user must carry the determination means. It is preferable to determine the traveling permission state based on the state of the ignition key, which should have been performed, the state of the occupant in the driver's seat of the vehicle, and the like.

In other words, in the invention according to claim 2, when the ignition key is mounted on the vehicle, the determination means determines that the vehicle is in a traveling permission state for permitting the vehicle to travel, while the ignition key is mounted on the vehicle. If not, the configuration is such that it is determined that the vehicle is in the traveling non-permitted state. With this, if the ignition key possessed by the user is mounted on the vehicle, the possibility of child mischief is low, and based on this, it is possible to accurately determine that the vehicle is in the traveling permission state.

According to the third aspect of the present invention, a seating state sensor for detecting a seating state of an occupant is provided in a driver seat of the vehicle.
The determining means is configured to determine whether the vehicle is in a traveling permission state or a traveling non-permission state based on an output signal from the seating state sensor. With this, the weight of the occupant in the driver's seat and the seating posture can be detected based on the output signal from the seating state sensor. Based on this, it is possible to accurately determine that the vehicle is in the traveling permission state. .

According to a fourth aspect of the present invention, the occupant seating sensor according to the third aspect of the present invention detects the occupant's seating state at the rear portion of the seat cushion, and the determining means determines that the seating state sensor has a predetermined value or more. When there is an output, it is determined that the vehicle is in the traveling permission state in which traveling of the vehicle is permitted, while if the sensor output is smaller than the predetermined value, it is determined that the vehicle is in the traveling non-permission state. Thus, when the occupant is sitting at the rear of the seat cushion, there is a high possibility that the adult is seated in a correct posture, and based on this, it is possible to accurately determine that the vehicle is in the traveling permission state.

According to the fifth aspect of the invention, the portable device automatically transmits an ID signal in a predetermined state, and the door lock control means determines whether the reception strength of the ID signal is equal to or greater than a first set value. The door lock mechanism is operated. Thus, if the portable device is set in a predetermined state in advance, the user can release the door lock of the vehicle simply by holding the portable device and approaching the vehicle, thereby obtaining excellent convenience. On the other hand, in this case, the door lock is released only when the user approaches, and the engine can be started. Therefore, in such a case, the effect of the invention of claim 1 is particularly effective. Become.

According to a sixth aspect of the present invention, the determining means according to the fifth aspect of the present invention further comprises the step of: permitting the vehicle to travel when the reception strength of the ID signal is equal to or higher than a second set value which is larger than the first set value. When the reception strength of the ID signal is smaller than the second set value while determining that the vehicle is in the permission state, it is determined that the vehicle is in the traveling non-permission state. If the state is determined, the engine start control by the engine start control means is prohibited.

Here, the second set value may be set so as to correspond to the reception strength of the ID signal when the user carrying the portable device is in the driver's seat.
With this configuration, it is possible to detect that the user carrying the portable device is in the driver's seat, and it is possible to accurately determine that the vehicle is in the traveling permission state based on this fact. In addition, if the running is not permitted, the starting of the engine is prohibited, so that the running of the vehicle can be reliably prevented.

According to a seventh aspect of the present invention, the engine start control means according to the fifth aspect enables the engine to be started only when the reception strength of the ID signal is equal to or higher than the first set value, and the determination means further comprises: When the received signal strength is equal to or greater than a second set value larger than the first set value, it is determined that the vehicle is in a traveling permission state where traveling of the vehicle is permitted. When it is smaller, it is determined that the vehicle is in the traveling-non-permitted state. Then, the travel inhibiting means forcibly stops the engine when the vehicle starts, when the determination means determines that the travel is not permitted.

Here, the second set value may be set to correspond to the reception strength of the ID signal when the user carrying the portable device is in the driver's seat.
With this configuration, it is possible to detect that the user carrying the portable device is in the driver's seat, and it is possible to accurately determine that the vehicle is in the traveling permission state based on this fact. In addition, when the vehicle is not allowed to travel, the engine is forcibly stopped when the vehicle starts moving, and the vehicle is reliably prevented from traveling. Furthermore, even in the traveling-non-permitted state, if the ID signal is equal to or more than the first set value, the engine can be started, so that, for example, the convenience during the warm-up operation of the engine in a cold region is further improved. That is, safety and convenience can be achieved at a higher level.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 2 shows the periphery of the driver's seat of a vehicle 1 on which a vehicle control device A according to the present invention is mounted. The driver's seat 2 of this vehicle 1 has a relatively large seat cushion 3. And a seat back 4 with side support and a headrest 5. A meter cluster 7 as shown also in FIG. 1 is provided above the instrument panel 6 located in front of the driver's seat 2 in the vehicle body. A steering column 8 is provided so as to extend, and a steering wheel 9 is provided at an upper end of the steering column 8. In the inside of the meter cluster 7, a speedometer 10 for displaying the running speed of the vehicle 1, a tachometer 11 for displaying the rotational speed of the engine, a combination of an engine water temperature gauge, a fuel gauge, and the like are integrated in order from the right side in FIG. A meter 12 is provided. An ignition key cylinder 13 (IG switch) is disposed on the right side of the steering column 8 on the vehicle body, and is provided on the instrument panel 6 adjacent to the key cylinder 13 for starting an engine (not shown). An ignition button 14 is provided.

The center panel 1 is provided on the instrument panel 6 on the left side of the vehicle body with respect to the steering column 8.
The air outlets 16 and 16 and the console boxes 17 and 17 of the air conditioner are arranged on the center panel 15. Also, the rear console 1 extends so as to extend rearward of the vehicle body continuously from the lower end of the center panel 15.
A shift lever 19 and a parking brake lever 20 are arranged on the rear console 18. In other words, the shift lever 19 is disposed at a position corresponding to the front edge of the seat cushion 3 on the left side of the vehicle body of the driver's seat 2.
At the position corresponding to the trailing edge of the parking brake lever 20.
Is arranged.

The parking brake lever 20 includes:
A parking brake switch 21 (hereinafter referred to as a parking brake SW) that switches on / off in conjunction with the operation is provided, and the parking brake lever 20 is pulled upward as shown in the figure, and the parking brake is operated. In the parking brake ON state, the output of the parking brake SW21 is turned on,
When the parking brake lever 20 is lowered and the parking brake is released (parking brake off state), the output from the parking brake SW 21 is turned off. Further, a driver seating sensor 22 (seating state sensor) including a pressure sensor is disposed in a portion on the rear side of the vehicle body inside the seat cushion 3 so as to detect an occupant load applied to a rear portion of the seat cushion 3. It has become.

On the other hand, at the rear end of the driver's seat door 23 located on the right side of the driver's seat 2 on the vehicle body, a fixing mechanism 24 such as a latch for engaging a striker (not shown) of the vehicle body is provided.
Is provided. The fixing mechanism 24 includes the driver's door 2
The outer door handle 25 provided on the outer side of the driver door 3 and the inner door handle 26 provided on the inner side of the driver's seat door 23 are connected so as to be linked with each other, and operate the outer door handle 25. Thus, the door fixing by the fixing mechanism 24 can be released. The outer door handle 25 is provided with a door handle sensor 27 that switches on / off in accordance with the operation.
The door handle sensor 27 detects the operating state of the outer door handle 25, that is, whether or not the door fixing operation by the outer door handle 25 is performed.

In the vicinity of the fixing mechanism 24, a door lock is provided in which the interlock between the fixing mechanism 24 and the outer door handle 25 is interrupted and the door fixing cannot be released by operating the outer handle 25. A mechanism 28 is provided. The door lock mechanism 28 includes a door lock actuator 29 composed of an electric actuator such as a solenoid.
By operating the actuator 29, the driver's seat door 23 can be brought into a door locked state, or the door locked state can be released and brought into an unlocked state. Further, the door lock mechanism 28
, A lock knob 30 operable from the vehicle interior side is connected by an interlocking mechanism (not shown), and by operating the lock knob 30, a door lock state or an unlock state can be set from the vehicle interior side. It has become.

Further, a door key cylinder 31 is provided near the outer door handle 25 on the outer surface of the driver's seat door 23. This door key cylinder 31
Is connected to an interlocking mechanism between the lock knob 30 and the door lock mechanism 28, and a key 32 (ignition key: see FIG. 1) is inserted into the door key cylinder 31 and turned to set the door lock state from outside the vehicle. Or unlocked. Further, a door lock sensor 33 is attached to the door lock mechanism 28, and detects whether or not the door lock state is released by a key operation of the door key cylinder 31.

As shown in FIG. 1, output signals from the parking brake SW 21, driver's seat sensor 22, door handle sensor 27, and door lock sensor 33 are output from a vehicle mounted on the back of the instrument panel 6. The data is input to the controller 35 (door lock CPU). On the other hand, a control signal output from the on-vehicle controller 35 is input to the door lock actuator 29 and also to a driver circuit 36 such as a horn or a hazard lamp of the vehicle 1. Based on an input signal from a sensor or the like, the door lock actuator 29 is operated, a horn is sounded, or a hazard lamp blinks.

Further, the in-vehicle controller 35 includes:
As shown in FIG. 1, a keyless transceiver 37 is connected to an engine controller 38 (hereinafter, referred to as ECU) for controlling the operation of an engine (not shown), and inputs and outputs signals, respectively. That is, the keyless transceiver 37 receives a signal (ID signal) transmitted from the portable device 40 integrated with the key 32 and outputs the signal to the in-vehicle controller 35. Then, the in-vehicle controller 35 operates the door lock actuator 29 in response to this signal, and sets the door lock state or the unlock state. That is, the in-vehicle controller 35
Constitutes a door lock control unit that receives an unlock signal from the portable device 40 and operates the door lock mechanism 28 of the vehicle 1.

The ECU 38 controls the fuel injection amount and the ignition timing of the engine according to the operating state. When the engine is started, the ECU 38 operates in response to the operation of the ignition key cylinder 13 and the ignition button 14. A signal is received via the on-vehicle controller 35 to operate a starter motor of the engine. That is, the ECU 38 starts the engine in response to the operation of the ignition button 14 disposed in the vehicle compartment, on the assumption that the on-board controller 35 has received the unlock signal from the portable device 40. It constitutes control means.

In the portable device 40, a power switch 41, a lock switch 42 (hereinafter referred to as lock SW), an unlock switch 43 (hereinafter referred to as unlock SW), and a display 44 are provided on the side surface of the substantially rectangular main body. In addition, as shown in FIG. 3 (a), a transmitter CPU 45 and a keyless transceiver 46 are built in the main body. Then, the power switch 41,
Output signals from the lock SW 42 and the unlock SW 43 are input to the transmitter CPU 45, while the CPU
The operation of the display 44 and the buzzer 48 is controlled by 45. The keyless transceiver 46 transmits and receives signals to and from the keyless transceiver 37 of the on-vehicle controller 35, and transmits and receives the signals to and from the transmitter CPU 45. Further, one end of the main body of the portable device 40 has a key 32 as described above.
Is attached.

Although not shown, the configuration of the passenger seat door of the vehicle 1 is also substantially the same as that of the driver's seat door 23, and the configuration of the rear seat door is provided with a door key cylinder 31 and a door lock sensor 33. Driver door 23 except that
Is substantially the same as The output signals from the door handle sensors 27 of the front passenger door and the rear seat door and the door lock sensor 33 of the front passenger door are transmitted to the on-vehicle controller 3.
5 is input.

The on-board controller 35 (door lock CPU) and the transmitter CPU of the portable unit 40 will be described below.
The control procedure of the door lock and unlock of the vehicle 1 performed by 45 will be described with reference to FIGS.
This control procedure is executed at predetermined time intervals according to a preset control program. FIG. 4 shows a control flow on the portable device 40 side, and FIGS. The control flow on the 35 side is shown. FIG. 3 shows transmission and reception of signals between the two.

First, in the flow on the side of the portable device 40 shown in FIG. 4, in step SA1 after the start, it is determined whether or not the power switch 41 of the portable device 40 is turned on. If the determination is NO, the process proceeds to step SA3, while if the determination is YES, the process proceeds to step SA2 to determine whether a predetermined period has elapsed and YES has elapsed.
If so, the process proceeds to step SA4, while NO has not elapsed
If so, the flow advances to step SA3. This step SA3
Then, the operation of the unlock switch 43 of the portable device 40 is detected, and if the operation is not performed NO, the process proceeds to step SA5, while if the operation is performed YES, the process proceeds to step SA4.
To make the keyless transceiver 46 transmit a pre-unlock signal, and then go to step SA5.

That is, if the power switch 41 of the portable device 40 is in the ON state, the unlock switch 43 is automatically set at predetermined intervals, or the user holding the portable device 40
When the portable device 40 is operated, as shown in FIG.
A pre-unlock signal is transmitted from the side (transmitter CPU 45), and this signal is received by the vehicle-mounted controller 35 (door lock CPU).

Subsequently, in step SA5, the transmitter CPU 45 of the portable device 40 determines whether or not an unlock request signal from the onboard controller 35 has been received. The unlock request signal is transmitted from the in-vehicle controller 35 that has received the pre-unlock signal as described later. For example, the unlock request signal is generated by a random number generator of the in-vehicle controller 35.
It consists of a digit random number code. If the determination is NO, the process proceeds to step SA7, while the determination is YES.
If so, the process proceeds to Step SA6, where the keyless transceiver 46
Transmits an unlock signal (ID signal) (see FIG. 3).
(b)). The unlock signal is composed of an ID code obtained by substituting a random number code of the unlock request signal into a predetermined arithmetic expression. The details will be described later, but the on-vehicle controller 35 also uses the same arithmetic expression. ID codes are also required,
Only when the codes match, the operation of the door lock mechanism 28 is performed.

Subsequently, in step SA7, the transmitter CPU 45 of the portable device 40 determines whether or not an unlock confirmation signal from the onboard controller 35 has been received. The unlock confirmation signal is transmitted from the vehicle controller 35 when the vehicle controller 35 receives the unlock signal and releases the door lock state by the door lock mechanism 28. If the determination is NO, the process proceeds to step SA9. If the determination is YES, the process proceeds to step SA8 to display "unlock" on the display 44 of the portable device 40 and activate the buzzer 48 twice. To draw the user's attention.

That is, the same arithmetic expression is prepared in advance on the portable device 40 side and on-vehicle controller 35 side, and the door lock mechanism 28 is operated only when the ID code calculated based on the random number code matches. So
There is no concern that the ID code will be stolen by another person and the door lock will be released without permission, and it has extremely high security.

Similarly, in step SA9 following step SA7 or step SA8, the operation of the lock SW 42 of the portable device 40 is detected, and N
If YES, the process proceeds to step SA12, while if YES, the process proceeds to step SA10 to cause the keyless transceiver 46 to transmit a pre-lock signal (FIG. 3).
(c)). In the following step SA11, transmission of the periodic unlock signal is prohibited for a predetermined period, and
Proceed to 12.

Subsequently, in step SA12, the transmitter CPU 45 of the portable device 40 determines whether or not a lock request signal from the onboard controller 35 has been received. This lock request signal is similar to the lock request signal, and the determination is NO.
If so, the process proceeds to step SA14, while if the determination is YES, the process proceeds to step SA13 to cause the keyless transceiver 46 to transmit a lock signal. This lock signal is also the same ID code as the unlock signal, and the door lock mechanism 28 is operated only when the ID code matches the ID code required on the vehicle-mounted controller 35 side.

In step SA14, the transmitter CPU 45 of the portable device 40 determines whether a lock confirmation signal has been received from the in-vehicle controller 35. If the determination is NO, the process returns. If the determination is YES, the process returns to step SA14. Proceeding to SA15, the display "lock" is displayed on the display 44 of the portable device 40, and the buzzer 48 is operated once to draw the user's attention.

Next, the flow on the vehicle controller 35 side shown in FIGS. 5 and 6 will be described. First, in step SB1 after the start in FIG. 5, it is determined whether or not the ignition key cylinder 13 (IG switch) is turned off. judge. If this determination is NO, since the ignition key cylinder 13 in the driver's seat of the vehicle 1 is operated by the key 32, the process proceeds to step SB2 to permit the start of the engine, and thereafter returns. Thus, when the ignition key cylinder 13 is operated to the start position or the ignition button 14 is operated, a drive command is output from the ECU 38 to the starter motor, and the engine is started.

On the other hand, YES at step SB1
When the determination is made, the process proceeds to step SB3 to determine whether or not the pre-unlock signal transmitted from the portable device 40 is received by the keyless transceiver 37 of the on-vehicle controller 35 as described above. If this determination is NO, the process proceeds to step SB5, while if the determination is YES, the process proceeds to step SB5.
Proceeding to step 4, the keyless transceiver 37 transmits an unlock request signal, and then proceeds to step SB5. In this step SB5, it is determined whether or not a pre-lock signal has been received, and if this determination is NO, the process proceeds to step SB5.
On the other hand, if the determination is YES, the process proceeds to step SB6, where a lock request signal is transmitted, and
Proceed to B7. That is, when either the pre-unlock signal or the pre-lock signal from the portable device 40 is received, an unlock request signal or a lock request signal is transmitted to the portable device 40, respectively.

Subsequently, in step SB7, it is determined whether or not a door lock operation has been performed by the door key cylinder 31 based on a signal from the door lock sensor 33. If the determination is NO, the process proceeds to step SB10. If the determination is YES, the process proceeds to step SB8 shown in FIG. 6. If the doors of the vehicle 1 are unlocked at this time, the doors are locked. The door lock mechanism 25 is operated so that In a succeeding step SB9, the portable device 40 is operated by the keyless transceiver 37 immediately after the operation.
Send a lock confirmation signal to the side, sound the horn of the vehicle twice, or flash the hazard lamp twice,
Thereafter, as described later, the engine control in step SB18 is performed.
Proceed to the / running control subroutine. Return after a while.

In step SB7, it is determined that the door lock operation by the door key cylinder 31 has not been performed, and in step SB10, the door key cylinder 3 is turned on based on a signal from the door lock sensor 33.
It is determined whether the door unlocking operation by No. 1 has been performed. If this determination is NO, step SB1 shown in FIG.
On the other hand, if the determination is YES, step SB1 in FIG.
Proceeding to step 1, if each door of the vehicle is locked at this time, the door lock mechanism 25 is operated so that each door is unlocked. In the following step SB9, immediately after the operation, the keyless transceiver 37 transmits an unlock confirmation signal to the portable device 40 side, sounds the horn of the vehicle once, or flashes the hazard lamp once, and thereafter, Engine control at step SB18 /
Proceed to the drive control subroutine. Return after a while.

Subsequently, in step SB13 shown in FIG. 6, an unlock signal (ID signal) from the portable device 40 is received, and the ID code of the unlock signal is the ID determined by the onboard controller 36. Determine if it matches the code. If this determination is NO, step SB
On the other hand, if the determination is YES, the process proceeds to Step SB14.
Then, it is determined whether or not the electric field strength (reception strength) of the unlock signal is smaller than a first set value L1.
If this determination is NO and the electric field strength of the unlock signal is equal to or greater than the first set value L1, the process proceeds to step SB11 where the door lock mechanism 28 is operated while the determination is YE
If S, the process proceeds to Step SB15.

In other words, when the ID code of the unlock signal transmitted from the portable device 40 matches the ID code obtained by the onboard controller 36, the vehicle 1 transmits the unlock signal based on the electric field strength of the unlock signal. 40
The distance to is estimated. For example, as shown by a solid line P1 in FIG. 7, if the distance from the vehicle 1 to the user P1 is equal to or less than a preset distance d1, the signal intensity becomes equal to or greater than the first set value L1, and at this time, the door of the vehicle 1 The lock is released.

Subsequently, in step SB15, it is determined whether the lock signal from the portable device 40 has been received and whether the ID code of the lock signal matches the ID code obtained by the on-board controller 36. If the determination is YES, the process proceeds to step SB8 to operate the door lock mechanism 28. If the determination is NO, the process proceeds to step SB16, and this time a predetermined time (for example, 2 seconds)
Within this period, it is determined whether or not an unlock signal (limited to ID code matching) having a strength equal to or greater than another set value L2 weaker than the first set value is received. If this determination is NO, the process proceeds to step SB8, where the door lock mechanism 2
8 is operated, while if the determination is YES, the step SB
Proceed to 17 and further lock signal (limited to ID code matching) after the received unlock signal
Is determined. If this determination is YES, the process proceeds to step SB8, where the door lock mechanism 28
Is operated, and if the determination is NO, step SB18 is executed.
Proceed to the engine control / running control subroutine. Return after a while.

That is, as shown by the dashed line P2 in FIG. 7, the distance from the vehicle 1 to the user P2 is equal to the distance d2.
When the strength of the unlock signal is larger than L2, it is determined that the user is far away, and each door of the vehicle 1 is locked. On the other hand, as shown by the virtual line P3 in FIG.
3 is intermediate between the distance d1 and the distance D2, and when the strength of the unlock signal is smaller than L1 and equal to or greater than L2, the vehicle 1 except when the lock signal is further received after the unlock signal. Is not operated. This prevents hunting of the door lock control.

Next, as a characteristic part of the present invention, engine control by the on-vehicle controller 35 and the ECU 38 is described.
The / running control subroutine will be described with reference to FIG. This control procedure is performed according to a preset control program.

First, step SC1 after the start of FIG.
It is determined whether or not the door lock of the driver's seat door 23 has been released. If the determination is NO, the process proceeds to step SC7. If the determination is YES and the door lock is released, the process proceeds to step SC2. It is determined whether an unlock signal (limited to the ID code matching) from the portable device 40 has been received within a predetermined time after the unlocking. If this determination is NO, step SC7
On the other hand, if the determination is YES, the process proceeds to Step SC3.

Subsequently, at step SC3, it is determined whether or not the engine start operation (on operation) by the ignition button 14 has been performed. If this determination is NO, the process proceeds to step SC7, while if the determination is YES, the ignition button 14 is turned on. If so, the process proceeds to step SC4. In this step SC4, it is determined whether or not the parking brake is on, based on the signal from the parking brake SW21. If the parking brake is off, the process proceeds to step SC7, whereas if the parking brake is on, the process proceeds to step SC7. The process proceeds to step SC5.

In step SC5, it is determined based on a signal from the occupant seating sensor 22 whether or not an output from the sensor 22 is equal to or greater than a predetermined value (detection?). If the determination is NO and the sensor output is smaller than the predetermined value, the process proceeds to step SC7. If the determination is YES and the sensor output is equal to or more than the predetermined value, the process proceeds to step SC6 to output an engine start signal to the ECU 38. I do. Then, the ECU 38 receiving the start signal operates the starter motor to start the engine.

That is, when the load state of the rear portion of the seat cushion 3 detected by the occupant sitting sensor 22 is smaller than a predetermined value, it is considered that no one is sitting on the driver's seat 22 or a child is sitting. Therefore, in this case, the starting of the engine is prohibited.

Following step SC6, step S
In C7, it is determined whether or not an engine stop operation (off operation) by the ignition button 14 has been performed. If this determination is NO, the control is terminated. On the other hand, if the determination is YES and the ignition button 14 is turned off, Proceeding to step SC8, an engine stop signal is output to the ECU 38. Then, the ECU receiving the stop signal
The engine 38 is stopped by stopping fuel supply control, ignition control, and the like to the engine 38.

The step SC5 of the flow constitutes a judging means for judging whether or not the traveling of the vehicle 1 is permitted, assuming that the on-board controller 35 has received the unlock signal from the portable device 40. The determination means determines that the vehicle 1 is in a traveling permission state in which the traveling of the vehicle 1 is permitted when an output from the occupant seating sensor 22 is equal to or more than a predetermined value. It is determined that the state is the permission state.

Further, NO is determined in step SC5, and step SC6 is skipped to step SC5.
In a control procedure proceeding to step 7, when the determination means determines that the vehicle is in the travel-non-permitted state, the ECU 38 prohibits the engine start control by the ECU 38 and prevents the vehicle 1 from traveling. .

Therefore, according to the vehicular control device A according to the first embodiment, when the user carrying the portable device 40 turns on the power switch of the portable device 40 and approaches the vehicle 1, the portable device 40 The door lock mechanism 28 is operated by the in-vehicle controller 35 which has received the unlock signal automatically transmitted from the vehicle 1, and each door of the vehicle 1 is unlocked. At this time, I calculated on the portable device 40 side and the on-vehicle controller 35 side based on the same arithmetic expression
Since the door lock is released only when the D codes match, the security is extremely high.

Moreover, the on-board controller 35
Assuming that has received the unlock signal,
It is determined whether or not the vehicle is in the traveling permission state based on the signal from the occupant sitting sensor 22 of the driver's seat 2. If the traveling permission state is established, the user can start the engine only by operating the ignition button 14, so that the convenience is extremely high. high. On the other hand, when it is determined that the vehicle is in the running-non-permitted state, even if the ignition button 14 is operated, the engine is not started. Therefore, even if a child mischiefs the ignition button 14, the engine is not started. No, so the security is extremely high.

(Embodiment 2) FIG. 9 shows an engine control / running control subroutine according to Embodiment 2 of the present invention.
In this embodiment, the determination as to whether or not to permit the start of the engine by operating the ignition button 14 is made based on the position of the portable device 40. still,
The overall configuration of the vehicle control device A according to the second embodiment is as follows.
Embodiment 1 shown in FIGS. 1 to 3 is the same as that of Embodiment 1 shown in FIGS.
Therefore, the same members and the same steps are denoted by the same reference characters and description thereof will be omitted.

Steps SD1, SD after start in FIG.
2, steps SC1 and SC2 of the first embodiment.
In the following step SD3, it is determined whether or not the electric field strength (reception strength) of the unlock signal received in step SD2 is larger than the second set value L0. This second set value L0 is
The second set value L0 is set to correspond to a case where the user having the “0” is seated on the driver's seat 2 of the vehicle 1, so that the second set value L0 is larger than the first set value L1. Become. If this determination is NO, it is determined that the user is not in the driver's seat, and the process proceeds to step SD7,
YE when the electric field strength of the unlock signal is equal to or greater than the second set value L0.
If S, the process proceeds to steps SD4 and SD5, and the same control procedure as steps SC3 and SC4 in the first embodiment is performed.

If the parking brake is on and the ignition button 14 is turned on, an engine start signal is output to the ECU 38 in step SD6 to control the start of the engine. . The control procedure in steps SD7 and SD8 is the same as that in steps SC7 and SC8 in the first embodiment. The step SD3 constitutes a judging means, and the control procedure for judging NO in the step SD5 and proceeding to a step SD7 constitutes a travel inhibiting means.

Therefore, according to the second embodiment, it is determined that the user carrying the portable device 40 is sitting on the driver's seat of the vehicle 1 based on the strength of the unlock signal from the portable device 40. Only when this is done, the starting of the engine by the ignition button 14 in the vehicle compartment is permitted, so that high convenience and safety can be obtained together as in the first embodiment. Moreover, since the occupant seating sensor 22 as in the first embodiment is not required, the cost can be reduced.

(Embodiment 3) FIG. 10 shows an engine control / running control subroutine according to Embodiment 3 of the present invention. In this embodiment, the ignition key cylinder 1
Only when the key 3 is operated by the key 32, the vehicle 1
Is allowed. Since the vehicle control device A of the third embodiment is the same as that of the first embodiment shown in FIGS. 1 to 6, the same members are denoted by the same reference numerals and description thereof will be omitted.

Steps SE1 to SE of the flow shown in FIG.
The control procedure up to 7 includes determining the output from the occupant seating sensor 22 (step SC5 shown in FIG. 8 of the first embodiment) and determining the strength of the unlock signal from the portable device 40 (second embodiment).
Except that step SD3) shown in FIG. 9 is not performed.
This is the same as in each embodiment. Therefore, in the third embodiment, assuming that the in-vehicle controller 35 has received the unlock signal, if the ignition button 14 is turned on while the parking brake is on, the engine is started. (Step SE5).

However, in the third embodiment, as shown in step SE8 of FIG.
When it is detected based on the signal from that that the parking brake is released (NO in step SE8), the engine is forcibly stopped in step SE7.
That is, when the user operates the parking brake lever 20 to start the vehicle 1, the engine stops and the start of the vehicle 1 is prevented.

On the other hand, steps SB1 and SB2 in FIG.
As shown in (2), if the ignition key cylinder 13 is operated by the key 32, the operation of the engine is unconditionally permitted, so that the user turns on the ignition key cylinder 13 with the key 32,
The vehicle 1 can be started. That is,
In this embodiment, step SB1 of the flow of FIG.
And the control procedure for proceeding from step SE8 to SE7 in the flow of FIG. 10 constitutes the travel inhibiting means.

Therefore, according to the third embodiment, the user can unlock the doors of the vehicle 1 only by approaching the vehicle 1 as in the above-described embodiments, and furthermore, the driver's seat The engine can be started by operating the ignition button 14 even if the user does not arrive at the vehicle, so that the convenience of warming up the engine in a cold region, for example, is further improved. Moreover, if the ignition key cylinder 13 is not operated by the key 32 integrated with the portable device 40, the start of the vehicle 1 is prevented, so that the child has high safety against mischief.

(Other Embodiments) The present invention is not limited to the first to third embodiments, but includes other various embodiments. That is, in the door lock and unlock flows shown in FIGS. 4 to 6 of the above embodiments, the control procedures of the steps indicated by broken lines can be omitted.

In the first embodiment and the like, the load of the occupant at the rear of the seat cushion 3 is detected by the pressure sensor 22 disposed on the rear side of the seat cushion 3 of the driver seat 2 on the vehicle body. The arrangement of the sensors is not limited to the rear part of the seat cushion 3, and of course, other than the seat cushion 3, for example, the seat back 4.
Or the headrest 5, and the type of the sensor is not limited to the pressure sensor, but may be any as long as it can detect the seated state of the occupant.

Further, as shown in FIG. 11, for example, the control procedures of the first and third embodiments can be combined with each other. That is, as shown in step SF5, based on the signal from the occupant seating sensor 22,
Only when an adult is seated in the driver's seat 2 in a correct posture, the engine can be started, and
Only when the ignition key cylinder 13 is turned on, the vehicle is allowed to run.

For example, as shown in FIG. 12, the control procedures of the second embodiment and the third embodiment are combined with each other, and as shown in step SG3 of FIG. The engine can be started when the user is seated, and
The vehicle may be allowed to run only when the ignition key cylinder 13 is turned on.

Further, for example, as shown in FIG.
In the third embodiment, even when the ignition key cylinder 13 is turned off, the traveling of the vehicle 1 may be permitted depending on the strength of the unlock signal. That is, when the release state of the parking brake is detected in step SH8 of FIG.
9, the electric field strength of the unlock signal is equal to the second set value L
Determine if it is greater than zero. If this determination is NO, the process proceeds to step SH7, where the engine is stopped. On the other hand, if the determination is YES and it is determined that the user holding the portable device is in the driver's seat, the engine is not stopped,
The traveling of the vehicle 1 is permitted. In this way, even if the user inadvertently forgets to operate the ignition key cylinder 13 with the key 32, there is no need to restart the engine one by one.
Thus, safety and convenience can be achieved at a higher level than in other embodiments.

[0070]

As described above, according to the vehicle control apparatus of the first aspect, the door of the vehicle is unlocked by the door lock control means that receives the ID signal from the portable device. When the engine is started by the engine start control means in response to the operation of the ignition button in the passenger compartment, it is determined whether or not the vehicle is permitted to run, based on the assumption that the door lock mechanism is operated. Since the determination means and the travel inhibiting means for inhibiting travel of the vehicle when the determination means determines that the vehicle is in the traveling-non-permitted state are provided, the user carrying the portable device can take a Even if the engine is started due to mischief or the like, the possibility of starting the vehicle is minimized, and safety can be improved.

According to the second aspect of the present invention, it is possible to accurately determine whether or not the vehicle is in the traveling permission state based on whether or not the ignition key possessed by the user is mounted on the vehicle.

According to the third aspect of the present invention, it is possible to accurately determine whether or not the vehicle is in the traveling permission state based on the sitting state of the occupant in the driver's seat.

According to the fourth aspect of the present invention, for example, the occupant seating sensor detects the occupant's seating state at the rear of the seat cushion, so that it is possible to accurately determine whether the vehicle is in the traveling permission state.

According to the fifth aspect of the present invention, I
By using a portable device that automatically transmits the D signal, the convenience is enhanced and the effect of the first aspect of the invention is particularly effective.

According to the sixth aspect of the present invention, the fact that the user carrying the portable device is in the driver's seat can be detected based on the reception strength of the ID signal, so that it can be accurately determined whether or not the vehicle is in the traveling permission state. . In addition, when the running is not permitted, the running of the vehicle can be reliably prevented by prohibiting the start of the engine.

According to the seventh aspect of the present invention, it is possible to detect that the user carrying the portable device is sitting in the driver's seat based on the reception strength of the ID signal, so that it is possible to accurately determine whether the vehicle is in the traveling permission state. . In addition, when the vehicle is in a traveling-non-permitted state, the vehicle can be reliably prevented from traveling by stopping the engine when the vehicle starts. On the other hand, since the engine can be started even when the user is not in the driver's seat, the convenience is extremely high, for example, when the engine is warmed up in a cold region, and therefore, safety and convenience are further enhanced. Can be compatible.

[Brief description of the drawings]

FIG. 1 is a diagram showing an overall configuration of a vehicle control device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the vicinity of a driver's seat of a vehicle equipped with the vehicle control device.

FIG. 3 is an explanatory diagram showing transmission and reception of signals between the portable device side and the onboard controller side.

FIG. 4 is a flowchart illustrating a procedure of door lock control on the portable device side.

FIG. 5 is a flowchart illustrating the first half of a procedure of door lock control on the vehicle-mounted controller side.

FIG. 6 is a flowchart showing a latter half of the door lock control on the vehicle-mounted controller side.

FIG. 7 is an explanatory diagram showing a distance between a vehicle and a user.

FIG. 8 is a flowchart of an engine control / running control subroutine.

FIG. 9 is a diagram corresponding to FIG. 8 according to the second embodiment.

FIG. 10 is a diagram corresponding to FIG. 8 according to the third embodiment.

FIG. 11 is a diagram corresponding to FIG. 8 according to another embodiment in which the first and third embodiments are combined.

FIG. 12 is a diagram corresponding to FIG. 8 according to another embodiment in which the second and third embodiments are combined.

FIG. 13 is a diagram corresponding to FIG. 8 according to a modification of the third embodiment.

[Explanation of symbols]

 Reference Signs List A vehicle control device 1 vehicle 2 driver's seat 3 seat cushion 13 ignition key cylinder 14 ignition button 22 occupant seat sensor 28 door lock device 32 ignition key 35 in-vehicle controller (door lock control means) 35a determination means 35b travel prevention means 38 ECU (Engine start control means) 40 Portable machine

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B60R 25/10 610 B60R 25/10 610 3G093 621 621 E05B 49/00 E05B 49/00 K 65/20 65 / 20 F02D 17/04 F02D 17/04 V 29/02 29/02 K 45/00 345 45/00 345L 376 376H F02N 11/08 F02N 11/08 U 15/00 15/00 FE F02P 11/04 301 F02P 11/04 301B 302 302D F term (reference) 2E250 AA21 BB08 BB66 CC27 EE10 FF24 FF27 FF36 HH02 JJ03 KK03 LL00 LL01 RR01 SS01 SS06 SS08 SS11 UU02 UU03 VV01 3D037 FA01 FA23 FA24 FA25 FB16 CB00 00 CA07 DA28 DA29 EA11 EB00 EB22 FA00 FA06 3G092 AA01 BA10 BB10 CA02 CB04 CB05 DG07 EA08 EA14 FA29 FB07 FB10 GA10 G B01 HF00Z HF26Z 3G093 BA04 BA13 BA22 BA25 CA00 CB05 DB00 DB07 DB15 EA05 EA12 EB00 EC01 FA11 FB02 FB05

Claims (7)

[Claims] 1. A portable device that can carry an ID signal while being carried outside a vehicle compartment, and receives an ID signal from the portable device and activates a door lock mechanism so that a door of the vehicle is unlocked. Door lock control means, and engine start control means for starting an engine in response to operation of an ignition button disposed in the vehicle cabin on the premise that the door lock control means has received an ID signal. A control device for a vehicle, on the assumption that the door lock control unit has received an ID signal, a determination unit for determining whether to permit the vehicle to travel, and the determination unit does not permit the vehicle to travel. A control device for a vehicle, comprising: a driving inhibiting unit that inhibits the traveling of the vehicle when it is determined that the vehicle is in the traveling non-permitted state. 2. The vehicle control system according to claim 1, wherein the determination unit determines that the vehicle is in a traveling permission state in which the vehicle is permitted to travel if the ignition key is mounted on the vehicle, while the ignition key is not mounted on the vehicle. For example, a control device for a vehicle is configured to determine that the vehicle is in a traveling non-permitted state. 3. The vehicle according to claim 1, further comprising a seating state sensor for detecting a seating state of the occupant in a driver's seat of the vehicle, wherein the determination unit determines whether the vehicle is in a traveling permission state based on an output signal from the seating state sensor. A vehicle control device configured to determine whether the vehicle is in a traveling-non-permitted state. 4. The occupant seating sensor according to claim 3, wherein the occupant seating sensor detects a seating state of the occupant in a rear portion of the seat cushion, and the determining unit determines when an output of a predetermined value or more is output from the seating state sensor. The vehicle is characterized in that it is determined that the vehicle is in a traveling permission state while permitting the vehicle to travel, while if the sensor output is smaller than the predetermined value, it is determined that the vehicle is in a traveling non-permission state. Control device. 5. The portable device according to claim 1, wherein the portable device automatically transmits an ID signal in a predetermined state, and the door lock control means determines that the reception strength of the ID signal is the first.
A vehicle control device configured to operate a door lock mechanism when a set value is exceeded. 6. The method according to claim 5, wherein the determination unit determines that the vehicle is in a traveling permission state in which the traveling of the vehicle is permitted when the reception strength of the ID signal is equal to or greater than a second setting value larger than the first setting value. On the other hand, when the reception strength of the ID signal is smaller than the second set value, it is determined that the vehicle is in the travel-non-permitted state. A vehicle control device configured to prohibit engine start control by engine start control means. 7. The system according to claim 5, wherein the engine start control means enables the engine to be started only when the reception strength of the ID signal is equal to or higher than the first set value. Is greater than or equal to a second set value greater than the first set value, it is determined that the vehicle is in a traveling permission state in which traveling of the vehicle is permitted, and when the reception strength of the ID signal is smaller than the second set value. The travel inhibiting means is configured to forcibly stop the engine when the vehicle starts when the determination means determines that the vehicle is in the travel prohibited state. A control device for a vehicle, comprising: