JPH0627729Y2 - Safety device for remote control type vehicle door lock device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a safety device for a remote control type vehicle door lock device, specifically, a remote control using radio waves or light. The present invention relates to a safety device for preventing an erroneous operation of a remote control type vehicle door lock device (electric wave lock device) such as an electric wave lock device.

[Conventional technology]

A conventional remote control type vehicle door lock device will be described by taking a radio wave locking device as an example. As shown in FIG. 6, the transmitter 10 radiates a radio wave composed of a code signal determined according to locking or unlocking. Then, the code signal is received by the receiver 14 including the receiving circuit and the control circuit via the antenna 12, and the door lock solenoid 16 as an actuator is locked or unlocked from the receiver 14 according to the received code signal. A lock command is output, which allows the door to be locked or unlocked remotely from outside the vehicle. Even if there is another seat position adjusting device, a mirror position adjusting device, or the like, it is possible to automatically and remotely adjust the position to a position according to a specific user even outside the vehicle.

[Problems to be solved by the invention]

However, in the above-mentioned conventional example, since the receiver 14 is always supplied with power, the function such as the electric wave lock is activated even while the vehicle is running, and the transmission is erroneously performed. When the switch operation of the machine 12 is performed, there is a problem that the door may be unlocked.

Further, in a passenger car or the like, power is supplied to the receiver 14 while the remote control function such as a radio wave lock is not required during traveling, so that battery power is wasted. There was a problem.

An object of the present invention is to solve the above-mentioned conventional problems, in other words, even if the transmitter is erroneously operated while riding, such as while driving, the remote control type vehicle door lock device does not operate and at the time of getting off the vehicle. The purpose of the present invention is to provide a safety device that prevents binding due to forgetting to remove the key.

[Means for solving problems]

According to the present invention, in order to achieve the above-mentioned object, a radio wave locking device including a receiver, a receiving circuit, a control circuit, and a power supply circuit inserts a key into an ignition switch to place the ignition switch in either one of an ignition position and an accessory position. The switching transistor of the power supply circuit is controlled by the detection signal indicating that the power supply circuit is placed, and at least the receiving function of the receiver is stopped. At the same time, the control circuit receives power from the power supply and is connected to the control circuit in parallel. It is characterized in that the vehicle door lock device can be controlled even while the reception function is stopped by a signal from a state detection sensor such as a vehicle speed sensor, a key position sensor, or a lock sensor.

[Action]

That is, the normal key is inserted into the ignition switch while the vehicle is in the off position, the accessory position or the ignition position, and the key is always in the ignition switch ignition position while the vehicle is running. As the reception function of the vehicle remote control door lock device is stopped by
Even if the transmitter is erroneously operated, the door lock device will not operate.For example, the door will not be unlocked while running, safety will be secured, and the control circuit will be operable, so that the It is possible to prevent binding due to forgetting to remove the key by an alarm or the like.

〔Example〕

 Hereinafter, the present invention will be described based on embodiments.

FIG. 1 shows the overall configuration of a first embodiment of a radio wave lock device to which the present invention is applied. The receiver of the radio wave lock device of the present embodiment comprises a receiving circuit 20, a control circuit 22, and a power supply circuit 24.

Power is supplied to the receiving circuit 20 from a power supply circuit 24, and a radio wave of a locking / unlocking code signal output from a transmitter (not shown) is received by an antenna 21 and amplified.
After performing signal processing such as detection, it is output to the control circuit 22.

The control circuit 22 excites the relay 26 based on the locking / unlocking signal input from the receiving circuit 20, thereby driving the door lock solenoid 28 to lock / unlock the door. Further, the control circuit 22 includes a vehicle speed sensor 30 that outputs a signal when the vehicle speed is a certain value or more, a key position sensor 32 that outputs a signal when the key is inserted in the ignition switch, as a state detection sensor for each part, a driving Output signals of various sensors such as a D-seat courtesy switch 34 as a door sensor for detecting the opening and closing of the seat door and a lock sensor 36 for detecting a locked state of the door are input, and automatic lock depending on the vehicle speed, key lock prevention, etc. It has a mechanism of.

The power supply circuit 24 supplies the battery power + B to the receiving circuit 20 via the switching transistor Tr ₁ , and supplies the battery power + B to the control circuit 22 without the switching transistor Tr _1. Has become. The switching transistor Tr ₁ is turned on / off by the switching transistors Tr ₂ and Tr ₃ ,
An ON / OFF signal of the accessory switch 38 is input to the base of r ₃ via the high resistance R ₁ . And
When the accessory switch 38 is turned on, the resistance R
A voltage of + B is applied to the input terminal of ₁ , whereby the switching transistor Tr ₃ is turned on, Tr ₂ is turned off, the switching transistor Tr ₁ is turned off, and the power supply to the receiving circuit 20 is stopped. . In addition,
The resistance R _{2 is} also a high resistance.

With this configuration, according to the first embodiment,
When the key is inserted into the ignition switch and operated from the off position to the accessory position, the accessory switch 38 is turned on, whereby the switching transistor Tr ₁ is turned off and the power supply of the receiving circuit 20 is turned off. The receiving function of the device is stopped. Therefore, even if the switch of the transmitter is operated by mistake, the locking / unlocking signal is not input to the control circuit 22, so that the locked / unlocked state of the door is not affected by the erroneous operation. Moreover, the power consumption of the receiving circuit 20 is eliminated.

In place of the accessory switch 38 of the above embodiment,
The same effect can be obtained by using the ignition switch 42.

On the other hand, regardless of whether the accessory switch 38 is on or off, the control circuit 22 is constantly supplied with the power source + B, so that the output signals from the vehicle speed sensor 30, the key position sensor 32, etc. prevent the vehicle from being locked automatically or locked in the key. Functions such as are retained operably.

FIG. 2 shows an overall configuration diagram of a second embodiment to which the present invention is applied. This embodiment is basically different from the first embodiment in that the control circuit 40 is formed by a microcomputer and the power supply control to the receiving circuit 20 is controlled based on the ON / OFF signal of the ignition switch 42. Circuit 4
It is done by 0. That is, the second
As shown in the figure, the ON / OFF signal P _{2 of} the ignition switch 42 is input to the control circuit 40 via the switching transistor Tr ₄ that is turned on / off by turning on / off the ignition switch 42. In addition, the lock sensor 36 locks the door to the control circuit 40,
The unlocked state has been entered. On the other hand, the control circuit 40 outputs the power supply control signal P ₁ for turning on / off the power supply to the base of the switching transistor Tr ₅ of the power supply circuit 24.

The operation of the second embodiment configured as described above will be described with reference to the flowchart shown in FIG. First, the control circuit 40 takes in the output signal P ₂ of the switching transistor Tr ₄ in step 102. Then, if the ignition switch 42 is turned on, the on / off state of the ignition switch 42 is determined based on the fact that the collector voltage of the switching transistor Tr ₄ is substantially OV. If it is turned on, the process proceeds to step 104, and the power supply control signal P ₁ applied to the base of the switching transistor Tr ₅ is switched to the “L” level to turn off the switching transistor Tr ₁ and supply power to the receiving circuit 20. Stop the supply. As a result, the reception function of the receiver is stopped while the ignition switch 42 is on.

On the other hand, if it is determined in step 102 that the ignition switch 42 is off, the routine proceeds to step 106, where the level of the power supply control signal P ₁ is switched to “H”,
The switching transistor Tr ₁ is turned on to supply the power source + B to the receiving circuit 20. As a result, the reception function is activated, and the operation related to the well-known radio wave lock is performed. That is, in step 108, it is determined whether there is an input radio signal,
If there is, it is judged in step 110 whether or not the specific identification code signals match, and if they match, step 11
Go to 2 and capture the output signal of the lock sensor 36,
It is determined whether or not it is currently in a locked state, and if it is in the locked state, an unlock command is output to the relay 26 in step 114 to unlock it, and if it is in the unlocked state, the relay 26 is released in step 116. The lock command is output to the device to lock.

As described above, according to the second embodiment, since the reception function is stopped when the ignition switch 42 is turned on, the same effect as that of the first embodiment can be obtained. .

The same effect can be obtained by using an accessory switch instead of the ignition switch 42 of the second embodiment. If the output signal of the key position switch 32 is used instead of the ignition switch 42 as in the third embodiment shown in FIG. 4, the input circuit of the control circuit 40 is simplified. The same effect as the second embodiment can be obtained. The operation of the third embodiment, as shown in the flow chart of FIG.
The processing procedure is similar to that of the embodiment, and step 102
The only difference is the judgment.

In addition, in each of the above-described embodiments, the one using radio waves has been described, but the present invention can be similarly applied to the one using light to perform remote control.

Further, in each of the above-described embodiments, the one in which the power supply to the receiving circuit is stopped by the detection signal indicating that the key is inserted in the ignition switch has been described. You may make it stop the function which takes in the input signal from a circuit.

[Effect of device]

As described above, according to the present invention, the remote control type vehicle door lock device does not operate even if the transmitter is erroneously operated while riding, such as when the vehicle is running. It is prevented from being unlocked, etc., and safety is ensured, and when getting off the vehicle, prevent the key from being locked by an alarm or manual lock knob depression inhibiting process, or leave the vehicle with the door unlocked carelessly. There is an effect that it can be prevented.

[Brief description of drawings]

1 is an overall configuration diagram of a first embodiment of the present invention, FIG. 2 is an overall configuration diagram of a second embodiment of the present invention, FIG. 3 is a flow chart for explaining the operation of the second embodiment, and FIG. Is the third of the present invention
FIG. 5 is an overall configuration diagram of the embodiment, FIG. 5 is a flowchart for explaining the operation of the third embodiment, and FIG. 6 is a schematic configuration diagram of the entire radio wave lock device. 20 ... Receiving circuit, 22 ... Control circuit, 24 ... Power supply circuit, 32 ... Key position switch, 38 ... Accessory switch, 42 ... Ignition switch.

Continued Front Page (72) Inventor Akihiko Nino 1 Noda, Toyoda, Oguchi-cho, Niwa-gun, Aichi Prefecture Tokai Rika Electric Co., Ltd. (56) References: 62-73063 (JP, U)

Claims (2)

[Scope of utility model registration request] 1. A transmitter and a receiver for instructing locking / unlocking of a door, the receiver including a wave lock device including a receiving circuit, a control circuit, and a power supply circuit, and the wave lock device including a key. The switching function of the power supply circuit is controlled by a detection signal indicating that the power switch is inserted in the ignition switch and placed in one of the function operating positions of the ignition position and the accessory position, and at least the receiving function of the receiver is stopped, and at the same time A control circuit receives power supply from a power supply, and a vehicle door lock device can be controlled even during a stop state of the reception function by a signal from a state detection sensor of each unit connected in parallel to the control circuit. Safety device for remote control type vehicle door lock device. 2. The utility model registration claim, wherein the detection signal indicating that the key is in the function operating position by inserting the key into the ignition switch is at least one of an ignition switch, an accessory switch and a key position switch. A safety device for a remote control type vehicle door lock device, which has two operation signals.