JPH112051A - Entry control system for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To unlock a vehicle without causing actuation of a theft alarm device of the vehicle even if the main battery to feed electricity to different parts of the vehicle is discharged. SOLUTION: An entry system for a vehicle using electronic key is equipped with an aux. battery 42 which works together with a main battery 41 and feeds electricity to an on-vehicle lock/unlock control means, and each of these batteries is furnished with changeover means 61, 62, 63 to change over between connection with and disconnection from the lock/unlock control means, and the changeover means 61 and 62 for the aux. battery 42 are operated manually when the main battery 41 is discharged from outside the vehicle by the switch 63. When an opening/closing detecting means 201 detects connection of the aux. battery 42, the means 201 controls the changeover means 61 to disconnect the main battery 41, and thus battery changeover takes place while the current feed condition is held.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a vehicle entry control system for remotely locking / unlocking a vehicle.

[0002]

2. Description of the Related Art In general, locking of a door or the like of a vehicle is performed by inserting a mechanical key common to an ignition key into a key cylinder of the door. , A remote operation entry system using the Internet has been used. This system transmits the code assigned to each vehicle from the transmitter built into the handle of the key carried by the driver to the receiver on the vehicle side, and compares it with the code stored on the vehicle side and matches it Since the lock of the vehicle is released by the operation of the electromagnetic actuator or the like, there is an advantage that the door can be easily locked / unlocked at night or the like.

In the vehicular wireless door lock control device described in Japanese Patent Application Laid-Open No. 5-156851, a vehicle-side receiver transmits a radio wave for searching for a transmitter carried by a driver, and the transmitter receives the radio wave. Thus, by configuring the transmitter to transmit radio waves having a predetermined code to the receiver, the vehicle is automatically unlocked when the driver comes to the parking place, and the vehicle is unlocked when the driver leaves the parking place. I try to be locked.

An electronic key is also preferable in terms of crime prevention because it is difficult to make a copy as compared with a mechanical key and the vehicle can be automatically locked by electric drive. Japanese Unexamined Patent Publication No. Sho 63-125783 and Japanese Examined Patent Publication No. Hei 7-67900 disclose that a suspicious person can use a mechanical key by using an electronic key code collation and a mechanical key to start the engine for the first time. There have been proposals in which the engine cannot be started even if it is duplicated. Also, JP-A-4-3716
No. 84 discloses that the door is automatically locked if the door is not opened within a predetermined time after receiving the unlock command, so that the parking place can be remembered after the unlocking to remind of a sudden business. There is proposed a vehicle in which the vehicle is not left in an unlocked state even when the vehicle is separated from the vehicle.

[0005] By adopting an electronic key in this way,
Convenience and security in security can be greatly improved.

[0006]

However, when the electronic key is used, there is a possibility that the vehicle cannot be unlocked due to a shortage of the remaining electric power. JP 6
In Japanese Patent Application Laid-Open No. 3-167856 and Japanese Patent Application Laid-Open No. 5-179841, there is a device in which a built-in battery is charged through a plate portion of a key inserted into an ignition key cylinder when the vehicle is running. When the battery goes down, the vehicle cannot be unlocked in a legitimate manner by collating the code. Further, if the vehicle is unlocked or the like in an unauthorized manner, the vehicle burglar alarm device will be activated when the battery is replaced.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicle entry control system capable of treating a battery exhaustion without activating a vehicle burglar alarm even when the vehicle battery is exhausted.

[0008]

According to the first aspect of the present invention, the transmitting means carried by the driver emits a predetermined signal, which is received and responded to by the lock / unlock control means on the vehicle side. In a vehicle entry control system that switches between locking and unlocking a vehicle,
An auxiliary battery for supplying power to the lock / unlock control means is provided together with a main battery for supplying power to each part of the vehicle, and switching means for switching between connection and disconnection between the battery and the lock / unlock control means is provided for each battery. . The switching means for the main battery is normally closed. The switching means for the auxiliary battery is normally open and is switched manually from outside the vehicle. When the opening / closing detection means detects that the switching means for the auxiliary battery is closed, a switching control means is provided for controlling the switching means so that the switching means for the main battery is on the cut-off side.

Even if the main battery goes up, power is supplied to the lock / unlock control means from the auxiliary battery by manual operation from outside the vehicle, and the vehicle can be unlocked as usual. Thereafter, since the main battery is disconnected from the lock / unlock control means, the battery for supplying power to the lock / unlock control means is switched while the battery and the lock / unlock control means are always connected. Therefore, the antitheft device does not operate even when the battery is switched to the auxiliary battery.

[0010] In the invention according to claim 2, the switching means for the auxiliary battery is provided with a lock / lock switch from the auxiliary battery.
A relay having a normally closed relay contact is provided in the middle of the power supply line to the unlock control means. The coil is powered from an auxiliary battery. Further, the switching means for the auxiliary battery is provided with a switch for turning on / off the power supply from the auxiliary battery to the coil. The switch is a switch whose operation section is operated by inserting a key into a key cylinder provided on the vehicle body and rotating.

The auxiliary battery is reliably connected to the lock / unlock control means only by activating the relay by operating the switch, so that the operation when the battery is dead can be easily performed. In addition, since the switch is a key-type switch, there is no possibility that the suspicious person will play with it.

According to the third aspect of the present invention, the transmitting means carried by the driver emits a predetermined signal, which is received by the lock / unlock control means on the vehicle side, and the vehicle is locked and unlocked in response thereto. In a vehicle entry control system configured to switch between a lock mode and a lock mode, a switch is provided in which an operation unit inserts a key into a key cylinder provided in a vehicle body and turns to close the key cylinder. The switch has a configuration in which one contact has a switch contact that communicates with the power supply unit of the lock / unlock control means and the other contact is in contact with the key. The key is a power supply terminal for supplying power to the lock / unlock control means from outside the vehicle.

When the key is inserted into the key cylinder, the key is electrically connected to the power supply section of the lock / unlock control means via the switch. By using the key as a power supply terminal, power can be supplied to the lock / unlock control means, and a measure when the battery is dead can be easily performed. In addition, since the switch is a key-type switch, there is no possibility that the suspicious person will play with it.

According to the fourth aspect of the present invention, the transmitting means carried by the driver emits a predetermined signal, which is received by the lock / unlock control means on the vehicle side, and in response thereto, the locking and unlocking of the vehicle is performed. In a vehicle entry control system configured to switch between a lock state and a lock state, a main battery that supplies power to various parts of the vehicle, an auxiliary battery that supplies power to lock / unlock control means, and a connection between the auxiliary battery and the lock / unlock control means. There is provided a switching means for a normally open auxiliary battery for switching manually and externally from outside the vehicle. The auxiliary battery is configured to be charged from a vehicle-mounted power generator together with the main battery. When the power generator is not generating power, the prohibiting means prohibits the power supply from the auxiliary battery to the main battery.

Since the auxiliary battery is normally shut off from the lock / unlock control means, it is also shut off from the main battery via the lock / unlock control means. During the power generation stoppage of the power generator, the prohibiting means prohibits the current from flowing to the main battery, so that the auxiliary battery is sufficiently charged during running irrespective of the remaining amount of the main battery, and the main battery always runs out of power. Is maintained. Thus, even if the main battery goes up, power is supplied to the lock / unlock control means from the auxiliary battery by manual operation from outside the vehicle, and the vehicle can be unlocked as usual.

[0016]

1 and 2 show the configuration of an embodiment of a vehicle management system to which a vehicle entry control system according to the present invention is applied. Prior to the description of the features of the present invention, an outline of the vehicle management system will be described.

Referring to FIG. 1, the vehicle management system includes a card 1 carried by a driver and a vehicle control unit 2 mounted on the vehicle.

The card 1 includes a smart communication device 11, a keyless communication device 12, and a battery 13 for supplying power thereto. As shown in FIG.
00 is stored. On the surface of the casing 100, as operation buttons on the surface of which the driver manually operates the vehicle, a lock button 125 for locking the vehicle, an unlock button 126 for unlocking the vehicle, a trunk button 127 for opening the trunk, a panic indicating an emergency. A button 128 is provided.

The casing 100 also has two trays 1
01 and 102 are provided. The tray 101 has a rail groove 103 (only the tray 101 is shown) and a rail projection 104 (tray 1) of the casing 100 main body.
01 is slidable, and can be pulled out from the side surface of the casing 100 main body by operating the tray open button 105. One tray 101 has a mechanical key (mechanical key)
14 are stored and can be taken out. The groove of the mechanical key 14 is unique to each vehicle, and fits a key cylinder provided in a trunk described later. A battery 13 is stored in the other tray 102 and can be replaced when it is consumed.

FIG. 4 shows a circuit configuration of the card 1.
The smart communication device 11 has a carrier frequency of 2.45 GHz.
, A transmission / reception circuit 111 and an antenna 112, a control circuit 113 that outputs a code signal encrypted to the transmission / reception circuit 111, and a storage device 114 that stores codes and the like allocated to each vehicle. Transmission / reception circuit 1
Numeral 11 changes the impedance as seen from the antenna of the vehicle according to the "1" and "0" codes forming the code signal, thereby modulating the 2.45 GHz microwave from the vehicle side and automatically transmitting it.

The keyless communication device 12 has a transmission circuit 121 of 314 MHz (430 MHz in Europe) and an antenna 122, and a control circuit 12 for outputting command codes corresponding to the operation buttons 125 to 128 to the transmission circuit 121.
3 and a storage device 124 in which each instruction code and the like are stored. The keyless communication device 12 emits a radio wave modulated by a corresponding command code only when the operation buttons 125 to 128 are operated by the driver.

In FIG. 1, a vehicle control unit 2 includes a control security ECU 201 and three smart communication devices 202, which together form a vehicle entry system.
203, 204 and two systems of keyless communication devices 205, 2
06, and a door controller 207 and door lock actuators 208, 209, 210, 211 (shown in the example of a four-door car) for locking / unlocking the door based on a lock / unlock command from the security ECU 201. Have. Security ECU2
01 and the anti-theft detection sensors 212, 213, and 214 constituting a security system together with the siren 2
15 is provided. Security ECU 201
In addition, various status switches 216 to 234 for managing or operating each part of the vehicle are provided.

The configuration of the vehicle entry system will be described. Each of the smart communicators 202 to 204 has substantially the same configuration, emits a radio wave of 2.45 GHz from each antenna, and demodulates a radio wave returned from the smart communicator 11 of the card 1 after being modulated. A code signal is obtained and output to the security ECU 201. These are installed at the door 3 on the driver's side.
1, a trunk 32, and a card holder 33. The card holder 33 is provided on a panel portion or the like in front of the driver's seat,
The card 1 is set by the driver. The one provided on the door 31 and the trunk 32 is for searching for the card 1 when the driver carrying the card 1 is outdoors, and the one provided on the card holder 33 is for authentication of ID at the time of starting.

Each keyless entry communication device 205, 206
Have substantially the same configuration, and the antenna
314 MHz radio wave received from the keyless communication device 12 is demodulated and a command code is obtained.
201. These installation locations are a door 31 and a trunk 32 on the driver's seat side.

The security ECU 201 compares the code signals obtained from the smart communication devices 202 to 204 and the keyless communication devices 205 and 206 with a code stored in advance, and if the codes match, the vehicle corresponds to the obtained ID code. Lock / unlock, trunk open, panic.

The configuration as a security system will be described. When the vehicle is locked, the operation of the security ECU 201 is switched to the security mode, and the behavior of the suspicious individual is monitored. The detection sensors for theft prevention include a glass break sensor 212 for detecting breakage of window glass, an inclination sensor 213 for detecting the inclination of the vehicle, and an intrusion sensor 214 for detecting the intrusion of a suspicious person into the vehicle. Security ECU 20
1 is input. When an abnormality is found by these detection sensors, the security ECU 201 outputs an operation command to the siren 215, and the siren 215 emits an alarm sound. The tilt sensor 213 detects that the entire vehicle is carried away.

The siren 215 has a built-in battery, and when the security ECU 201 is in the security mode and the battery voltage drops sharply, the suspicious individual determines that the battery has been removed, and emits an alarm sound by the built-in battery.

The security ECU 201 has an engine control circuit 21 for controlling fuel injection and the like in the engine.
6, the operation of the engine control circuit 216 is prohibited if the IDs of the cards 1 do not match.
This prevents the engine from starting even if a suspicious person enters the vehicle.

Various status switches for vehicle management include a card insertion switch 217 for detecting whether or not the card 1 is inserted into the card holder 33 during riding, an engine speed sensor 218 for detecting the engine speed,
A parking brake switch 219 for detecting the on / off state of a parking brake, a shift position switch 220 for detecting a gear shift position, a foot brake switch 221 for detecting an on / off state of a foot brake, a bonnet switch 222 for detecting opening / closing of a hood, a door lock. Door detection switch 223 for detecting the presence or absence of the vehicle, a door open / close switch 224 for detecting the opening and closing of the door, an occupant detection switch 225 for detecting the presence of an occupant, an unlock detection switch 226 for detecting the presence or absence of an unlock, and starting the engine. Start switch 227, stop switch 228 for stopping the engine, card 1 from card holder 33
Eject switch for ejecting (EJECT in the figure)
Switch) 229 and a trunk open detection switch 230 for detecting the opening and closing of the trunk.
U201 grasps the state of the vehicle based on the detection signals output from these, and informs the driver if necessary. For example, if the driver forgets to remove the card 1 when getting off the vehicle, a warning is issued by activating the buzzer 232 for forgetting to remove the card.

The security ECU 201 outputs an open command to the trunk open mechanism 231 to open the trunk. When the start switch 227 is turned on, the ACC relay 233, the IG relay 234, and the starter relay 235 are driven to start the engine. When the stop switch 228 is turned on, the engine is stopped and the steering lock device 236 is operated to fix the steering.

FIG. 2 shows a power supply circuit of the vehicle control unit 2 for supplying power to each unit shown in FIG. Security ECU 20
1, + B line 31, GND line 3 for each circuit such as sensor 212
2, an auxiliary battery 42 connected in parallel with the main battery 41,
A power generator 5 for generating power by the driving force of the engine, and a switching circuit 6 for switching the connection between them. The auxiliary battery 42 is mounted in a vehicle compartment such as a trunk, an engine room, and a glove box so that the battery can be easily replaced.

The switching circuit 6 switches the connection and disconnection between the auxiliary battery 42 and the security ECU 201 and the like, and the first relay 61 as switching means for the main battery for switching connection and disconnection between the main battery 41 and the security ECU 201 and the like. A second relay 62 and a switch 63 which constitutes a switching means for the auxiliary battery together with the relay 62 and is operated when the unlocking of the vehicle does not operate;
And a third relay 64 serving as a prohibition unit for switching between connection and disconnection between the auxiliary battery 42 and the power generator 5. Although the switching circuit 6 uses a relay, a configuration using a thyristor or a transistor instead of the relay may be used.

The first relay 61 has a normally closed relay contact 611 and normally has a main battery 41 connected to a security ECU.
201 and the like, and supplies power to this. First relay 6
1 is that the relay coil 612 is the security ECU 201
Is supplied via the signal line 33, and at the time of power supply, the relay contact 611 is closed.

The second relay 62 has a normally open relay contact 621, and normally has a security E
No power is supplied to the CU 201 or the like. Second relay 62
Indicates that the relay coil 622 has the auxiliary battery 4
2 is connected.

The switch 63 has two switch contacts 631 and 632 connected in series, which are connected in series with the relay coil 622 of the second relay 62.
One of the switch contacts 631 is operated by inserting the mechanical key 14 taken out of the card 1 into a key cylinder 633 provided on a vehicle body, for example, a door of a trunk, a driver's seat, or a passenger's seat. This is a switch contact, and when the key cylinder 633 and the mechanical key 14 match, the key cylinder 633 rotates and turns on. The other switch contact 632 is attached to a door knob on the driver's seat side, and is turned on when the door knob is pulled. That is, the relay coil 6 is not turned on until both switch contacts 631 and 632 are turned on.
22 is supplied from the auxiliary battery 42 to the second relay 62.
Is turned on. The trunk and door are not opened only by inserting and turning the mechanical key 14 into the key cylinder 633. The ID of the card 1 matches and the card 1 is opened.

Another switch contact 634 is provided in the key cylinder 633. One of the contacts communicates with the + B line 31, and the other contact makes contact with the mechanical key 14 when the plate portion 141 of the mechanical key 14 having the key groove is inserted into the key cylinder 633. And mech key 1
When the rotary operation of the switch 4 is performed, the switch contact 634 is turned on.
The mechanical key 14 serves as a power supply terminal for supplying power to the security ECU 201 and the like from a power supply (battery 7 in the illustrated example) instead of the vehicle when the batteries 41 and 42 are raised.

The third relay 64 has a normally open relay contact 641 provided in the middle of the power supply line from the power generator 5 to the auxiliary battery 42. The auxiliary battery 42 is disconnected from the main battery 41 and the power generator 5. ing. One end of the relay coil 642 of the third relay 64 is connected to the auxiliary battery 42.
The other end is connected to the security EC by a signal line 34.
It is connected to U201. Security ECU 201
Determines whether the engine is started and the power generator 5 is performing power generation operation. At the time of power generation, the signal line 34 is set to the “L” level to energize the relay coil 642 of the third relay 64 to close the relay contact 641 and generate power. Device 5 and auxiliary battery 4
2 is connected. When the power generation is stopped, the signal line 34 is set to the “H” level, the relay contact 641 is opened, and the auxiliary battery 42
Is cut off from the power generation device 5 so that the main battery 41 is also cut off.

For example, the power generation state is determined to be a power generation state when the idle speed detected by the engine speed sensor 218 exceeds a minimum speed (for example, 600 rpm), and is determined to be a rest state when the minimum speed is divided. Alternatively, it is determined from the output voltage of the power generator 5 whether or not the power is in the power generation state.

While the power generator 5 is generating power, a current flows from the power generator 5 to both batteries 41 and 42, and both batteries 41 and 42
Is charged. Since the auxiliary battery 42 is disconnected from the main battery 41 during power generation suspension, even if the remaining amount of the main battery 41 is small, the auxiliary battery 42
Current is prohibited from flowing through the auxiliary battery 42, and the auxiliary battery 42 is maintained in a state capable of coping with the dead battery of the main battery 41.

Security ECU 20 as open / close detecting means
1 is connected to the switch 63 side of the relay coil 621 of the second relay 62 via the signal line 35 so that the voltage of the relay coil 621 can be checked. The security ECU 201 is connected to the positive electrode of the auxiliary battery 42 by a signal line 36 so that the voltage of the auxiliary battery 42 can be checked.

FIGS. 5 and 6 are flowcharts for explaining the operation of the above-described vehicle entry control system. FIG. 4 shows the action of the driver carrying the card 1, and FIG. 5 shows the operation of the vehicle. Is shown.

As described above, the vehicle normally has the first relay 61
Is turned on, and the vehicle control unit 2 is operated by power supply from the main battery 41 (step S201). Next, the level of the signal line 35 is read by the security ECU 201 (step S202) and checked (step S203). Since the normal switch unit 63 is not operated, the signal line 35 is at the “H” level, and the step S204 is performed.
Proceed to. When the second relay 62 is off (step S20)
4), the power supply of the auxiliary battery 42 to the security ECU 201 is stopped (step S205). Then, the signal line 33 is at the “L” level (step S206),
The first relay 61 is on (step S20).
7). That is, power is supplied only from the main battery 41.

The smart communication devices 202 to 204 and the keyless communication devices 205 and 206 operate intermittently by the power supply from the main battery 41 (step S215). On the other hand, the keyless communication device 12 is actuated by the driver coming to the parking place, which is the range where the code signal can be demodulated, or by operating the buttons 125 to 128 by the driver (step S101).

Then, the smart communication devices 202 to 204 or the keyless communication devices 205 and 206 communicate with the card 1 to obtain a code signal (step S216). Next, code collation is performed, and whether or not the code is checked is checked (step S217).

If the collation is possible, the process proceeds to step S218. When the smart communication devices 202 to 204 receive the code, and when the keyless communication devices 205 and 206 receive the code corresponding to the unlock button of the card 1, the door is unlocked. The keyless communication devices 205 and 206
When the code corresponding to the trunk button is received, the trunk is opened. After unlocking, if the code corresponding to the lock button is received, the vehicle is locked.
When a code corresponding to the panic button is received, emergency operation such as blinking of a hazard lamp is performed.

In the following step S219, step S2
In the case of unlocking at 18, the security mode is released because the regular communication is performed between the card and the vehicle and the vehicle is unlocked. In the case of lock, set the security mode. In the case of trunk open, there is no mode change, and the previous mode is maintained.

On the other hand, in step S102, the driver checks whether or not the vehicle has been unlocked as usual (step S218). If it operates normally, it is recognized that the main battery 41 on the vehicle side has no problem.

If there is no operation such as unlocking in the vehicle, the possibility of running out of the battery is high and step S103 is performed.
Proceed to. In step S103, the mechanical key 14 is taken out of the card 1, inserted into the key cylinder 633 of the trunk, and turned to turn on the switch 631. Subsequent step S1
In step 04, the door knob is pulled to turn on the switch contact 632.

As a result, the relay coil 622 of the second relay 62 is energized and the level of the signal line 35 becomes "L" (step S203), and the second relay 62 is turned on (step S208). Thus, power is supplied from the auxiliary battery 42 to the security ECU (step S20).
9). In step S210, the level of the signal line 36 is read. In the subsequent step S211, the level of the signal line 36 is determined. The line 33 is set to the “H” level (step S21).
2) Turn off the first relay 61 (step S21)
3). The power supply to the security ECU 201 and the like is switched from the main battery 41 to the auxiliary battery 42 (step S
214).

Steps S215 to S219 are performed by the power supply from the auxiliary battery 42.

As described above, the + B line 31 and the GND line 32
Once connected to the auxiliary battery 42, the main battery 41
And the siren 215 does not operate even in the security mode. The vehicle can be unlocked as usual.

The driver checks whether or not the vehicle has been unlocked by the power supply from the auxiliary battery 42 (step S218). If it operates normally, the vehicle is unlocked and the security mode is released (step S21).
9) Connect the main battery 41 to the battery of another vehicle by a booster cable and start the engine to charge the battery, or replace the main battery 41 with a fully charged battery.
In this case, since the security mode is released, the siren 215 does not emit an alarm sound.

Next, the door knob is returned (step S11).
2) Pull out the mechanical key 14 from the trunk key cylinder (step S113). Thereby, the switches 631, 6
32 turns off, the second relay 62 turns off, and the auxiliary battery 42 stops supplying power. And security ECU
In the restart of 201, the level of the signal line 35 becomes "H" and the process proceeds to step S204. That is, the normal state in which the main battery 41 supplies power is restored.

Next, the case where the vehicle is not unlocked in step S106 will be described. This is highly probable that the auxiliary battery 42 has also risen, and the emergency battery 7 is prepared (step S107).
The terminal is connected to the key 14 (step S108), and the-terminal is connected to the body (step S109). Instead of the battery 7, an AC-DC power supply having the same voltage as the main battery 41 or the like may be used.

As a result, power supply to each part of the vehicle control unit 2 is secured, and the vehicle can be unlocked or the like by communication between the card 1 and the vehicle (step 218).

The driver checks whether or not the vehicle has been unlocked by the power supply from the emergency battery 7 (step S218) (step S111). If the operation is normal, the process proceeds to step S112 as in the case of operation with the auxiliary battery 42.

If the vehicle does not operate normally in step S111, it is determined that the cause of the inactivity of the vehicle is different from the cause of the dead battery, and the process proceeds to step S114 to search for another cause of the inactivity.

The switch 63 by operating the mechanical key 14
1 and the door knob switch 632 need not be both provided, and only one may be provided. In this case, it is desirable to leave a switch 631 that cannot be operated by a suspicious person who does not have the mechanical key 14.

The switch 634 of the switch unit 63 for supplying power from the emergency battery 7 may be omitted to simplify the configuration. Conversely, a configuration in which the backup by the auxiliary battery such as the auxiliary battery 42 is omitted and power is supplied from the emergency battery 7 or the like via the mechanical key 14 when the main battery 41 rises may be used.

The security ECU 201 determines whether the power generator 5 is generating power or is inactive, and the third relay 64 switches connection and disconnection between the main battery 41 and the auxiliary battery 42 accordingly. But the relay 64
Instead, a diode having a forward direction from the main battery 41 to the auxiliary battery 42 may be used.

The auxiliary battery 42 may not be charged by the power generator 5. In this case, for example, the battery is fully charged at the time of periodic inspection.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a control system of a vehicle entry control system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a power supply system of the vehicle entry control system according to one embodiment of the present invention.

FIG. 3 is a perspective view of a card constituting the vehicle entry control system according to the embodiment of the present invention.

FIG. 4 is a block diagram of a card constituting the vehicle entry control system according to one embodiment of the present invention.

FIG. 5 is a first flowchart illustrating the operation of the vehicle entry control system according to the embodiment of the present invention.

FIG. 6 is a second flowchart illustrating the operation of the vehicle entry control system according to the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Card (transmission means) 14 Mechanical key 141 Plate part 2 Vehicle control part (lock / unlock control means) 201 Security ECU (opening / closing detection means, switching control means) 41 Main battery 42 Auxiliary battery 5 Power generation device 61 First (Switching means for main battery) 62 Second relay (switching means for auxiliary battery) 63 Switch section (switching means for auxiliary battery, switch) 631 switch contact 633 key cylinder 634 switch contact 64 third relay (Prohibition means)

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Mitsuru Otsuka 1-1-1, Showa-cho, Kariya-shi, Aichi Prefecture Inside Denso Corporation (72) Inventor Hiroto Uesaka 1-1-1, Showa-cho, Kariya-shi, Aichi Co., Ltd. Inside DENSO

Claims (4)

[Claims] 1. A transmitting means, which is carried by a driver and emits a predetermined signal, provided on a vehicle, receives a signal from the transmitting means, and responds to the signal to control switching between locking and unlocking of the vehicle. In a vehicle entry control system having unlock control means, an auxiliary battery for supplying power to the lock / unlock control means is provided together with a main battery for supplying power to each part of the vehicle, and a connection between the lock / unlock control means and the main battery is provided. Switching means for a normally-closed main battery for switching between shut-off and switching means for a normally-open auxiliary battery for manually switching between connection / disconnection between the lock / unlock control means and the auxiliary battery from outside the vehicle; The switching means for the auxiliary battery is closed by the opening / closing detection means for detecting the opening / closing of the switching means, and the opening / closing detection means. Switching control means for controlling the switching means for the main battery such that the switching means for the main battery is turned off when the operation is detected. 2. The vehicle entry control system according to claim 1, wherein the switching means for the auxiliary battery comprises:
A relay which is operated by the auxiliary battery and has a normally closed relay contact in the middle of a power supply line from the auxiliary battery to the lock / unlock control means, and a switch for turning on / off the power supply from the auxiliary battery to a coil of the relay. And
An entry control system for a vehicle, wherein the switch is operated by inserting a mechanical key into a key cylinder provided on the vehicle body and operating the switch. 3. A transmitting means which is carried by a driver and emits a predetermined signal, and is provided in the vehicle, and receives a signal from the transmitting means and controls the switching between locking and unlocking of the vehicle in response to the signal. In an entry control system for a vehicle having an unlock control means, an operation unit is a switch for inserting a mechanical key into a key cylinder provided on the vehicle body to turn and close the switch, and one of the contacts is the lock / unlock. A switch having a switch contact that communicates with a power supply of the control means and has the other contact in contact with a key inserted into the key cylinder, and a power supply for supplying the key to the lock / unlock control means from outside the vehicle; An entry control system for a vehicle, wherein the entry control system is a terminal for the vehicle. 4. A transmitting means which is carried by a driver and emits a predetermined signal, and a lock / lock which is provided in the vehicle, receives a signal from the transmitting means, and controls switching between locking and unlocking of the vehicle in response to the signal. In the vehicle entry control system having the unlock control means, an auxiliary battery that supplies power to the lock / unlock control means together with the main battery that supplies power to each part of the vehicle, and an auxiliary battery that is charged together with the main battery by a power generation device mounted on the vehicle. Switching means for a normally open auxiliary battery for manually switching between connection / disconnection between the lock / unlock control means and the auxiliary battery from outside the vehicle, and supplying the power output of the power generator to the auxiliary battery. The power supply from the auxiliary battery to the main battery is prohibited when the power generator is not generating power during the power supply line An entry control system for a vehicle, comprising: a prohibition means for performing the operation.