JP2964346B2 - Car door unlocking device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile door unlocking device that unlocks another door by operating a door cylinder lock with a key.

<Conventional technology> Power lock devices installed in passenger cars and the like lock each door by operating the power lock switches in the driver's seat, and unlock the doors on the contrary, and lock the doors. An apparatus having an electrically driven actuator is used as the apparatus.

Therefore, by using this power lock device even when riding, it is necessary to add a function of unlocking other doors when the driver performs a predetermined operation when unlocking the cylinder lock of the door. Has also been done. As this type of unlocking device, a normal operation (first mode) of unlocking a cylinder lock such as a driver's seat side door by a key operation, and after that, the key position is returned once to a two-mode timer. There is known a so-called two-mode system in which a second mode in which another key is unlocked when the key is turned again while the timer is operating is operated.

On the other hand, an illumination mechanism for indicating the position of the cylinder lock is also provided to facilitate unlocking at night. For example, when the outer handle is operated to the open side, a key illumination timer is started, and the illumination built in the cylinder lock is turned on during the operation of the timer.

<Problems to be Solved by the Invention> As described above, conventionally, two modes for two modes and one for key illumination are used.
It requires various types of timers, complicates the configuration of the control circuit, complicates operation in two modes, and consumes more power when the engine is stopped, increasing the load on the battery. was there.

The present invention has been made in view of such a problem, and has an object to obtain an unlocking device which has a simple configuration and operation of a control circuit and consumes less power.

<Means for Solving the Problems> In order to achieve the above object, the present invention provides an opening operation detecting means for detecting that an outer handle of a door provided with a cylinder lock has been operated to an opening side, A timer that starts when the opening device of the outer handle is detected by the operation detecting means, and unlocking means that unlocks another door when the cylinder lock is unlocked by a key operation while the timer is operating; And

<Operation> After the outer handle of the door provided with the cylinder lock is operated to the open side, a normal operation of inserting a key into the cylinder lock and unlocking is performed, thereby unlocking the other doors.

<Example> Next, one example of illustration is described. FIG. 1 is a circuit diagram of a main part of the apparatus, and FIG. 2 is a flowchart of control means.

In FIG. 1, reference numeral 1 denotes a microcomputer serving as a center of a control unit, which includes a CPU 1a, a ROM 1b, a RAM 1c, and the like.
2 is a power lock switch provided in the driver's seat, 3
Is a lock actuator, and 4 is an unlock actuator. When the power lock switch 2 is operated to the lock side, the lock actuator 3 is operated to lock each door, and when the power lock switch 2 is operated to the unlock side. The unlocking tutor 4 operates to unlock each door.

Reference numeral 5 denotes a lock link switch provided in the door lock device for detecting a locked state, and is configured to be turned off when the lock device is in the locked state and turned on when the lock device is in the unlocked state. Reference numeral 6 denotes an outer handle switch provided on a door provided with a cylinder lock, such as a door on the driver's seat side or a passenger's seat side, and is turned on when the outer handle is operated to the open side to open the door. An operation is detected. Reference numeral 7 denotes an illumination light source built in the cylinder lock.

Each of the switches 2, 5, and 6 is connected to the input side of the microcomputer 1 so that its state is input to the CPU 1a, and the actuators 3, 4 and the illumination light source 7 are connected to the output side of the microcomputer 1. . The control circuit can be configured by a discrete circuit instead of the microcomputer as described above.However, in recent automobiles, since a microcomputer is used for various controls such as engine control, an existing microcomputer is used. This can be easily dealt with by slightly modifying the control program. The above-mentioned actuators, switches, and illumination light sources are also the same as those conventionally provided, and existing ones can be used as they are.

The actuators 3 and 4 and the lock link switch 5
The illumination light source 7 is provided on each door, and the outer handle switch 6 is provided on a door provided with a cylinder lock, but only one is shown in the figure.

This embodiment is configured as described above, and starts from the standby state in which each door is locked by the procedure shown in FIG.

First, in step S1, the ON / OFF of the outer handle switch 6 is determined. Then, when it is turned on and it is detected that the outer handle has been operated to the open side,
Proceed to the next step S2.

In this step S2, it is determined whether the lock link switch 5 is on or off. If the lock device is in the locked state and the switch 5 is off, the timer starts. This timer is set to, for example, 5 seconds.

In the next step S3, when the timer is activated, the illumination light source 7 is activated.
Lights up, and if the unlocking operation of the cylinder lock by the key is not performed within the set time, and the lock link switch 5 is kept off, the illumination light source 7 is turned off at the end of the set time, and the process proceeds to step S1. Return. On the other hand, when the key is inserted and unlocked within the set time and the lock link switch 5 is turned on, the process proceeds to the next step S4, where the microcomputer 1
Outputs a signal for operating the actuator 4, and all other doors are unlocked.

When performing the above operation, the operation required by the driver is to operate the conventional outer handle to the open side to start the key illumination timer, and to lock the cylinder lock while the timer is operating and the lighting is on. Although it is not substantially different from the operation of unlocking, it is not necessary to return the key position required in the conventional two-mode method to the original position and rotate the key again, and the cylinder lock can be easily operated. And unlock
In addition, other doors can be unlocked.

A switch is selectively provided between an unlock mode in which all other doors are unlocked and a normal operation mode in which a cylinder lock is simply unlocked with a key, and a desired mode is set as required. You can also make it selectable.

<Effect of the Invention> As is apparent from the above-described embodiment, the present invention operates the outer handle of the door provided with the cylinder lock to the open side, and then inserts the key into the cylinder lock to unlock the door. The other doors can be unlocked by operation.

Therefore, there is no need to prepare two types of timers for two modes and for key illumination, simplifying the configuration of the control circuit, reducing power consumption when the engine is stopped, and reducing the load on the battery. In addition, the required key operations are simplified and the operability is improved. Further, there is no need to add new parts, and the conventional circuits and parts are provided. The unlocking device having a predetermined function can be realized by utilizing the above.

[Brief description of the drawings]

FIG. 1 is a circuit diagram of a main part of an embodiment of the present invention, and FIG. 2 is a flowchart of a control procedure. 1 ... microcomputer, 1a ... CPU, 2 ... power lock switch, 3 ... lock actuator, 4 ...
... unlock actuator, 5 ... lock link switch, 6 ... outer handle switch, 7 ... light source for illumination.

Claims (1)

(57) [Claims] 1. An opening operation detecting means for detecting that an outer handle of a door provided with a cylinder lock has been operated to an open side, and is activated when the opening operation detecting means detects an opening operation of the outer handle. An unlocking device for an automobile door, comprising: a timer; and unlocking means for unlocking another door when the cylinder lock is unlocked by a key operation while the timer is operating.