JPS6294674A - Electronic key apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to an electronic key device that locks (LOCK) and unlocks (UN LOCK) the doors of automobiles etc. by remote control. This invention relates to an electronic key device that eliminates the need for electronic keys.

(Prior Art) Generally, doors in automobiles and the like are locked and unlocked by inserting a key carried by the driver into a keyhole and mechanically rotating the key. However, according to this, it is necessary to insert the key into the keyhole each time, which is troublesome, and it is also inconvenient that it is not easy to handle in a dark place.

Therefore, an electronic key device has been proposed that allows doors to be locked and unlocked by remote control. This device transmits predetermined key code data from a portable transmitter (remote control key) to the receiver side, and the receiver side receives the transmitted key code signal, and if this matches the own key code, , and is configured to operate a drive device for locking or unlocking the door.

Conventionally, in an electronic key device having such a configuration, a door is locked and unlocked electronically, and an outer handle is provided so that the door itself can be opened and closed by hand.

(Problem to be solved by the invention) However, providing an outer handle on the door
In the case of automobiles, there is a problem in that air resistance increases.

The present invention has been made in view of these problems, and its purpose is to realize an electronic key device that can open a door with a keyless key and does not require an outer handle.

(Means for Solving the Problems) The present invention, which solves the above-mentioned problems, includes a transmitter that transmits key code data and signals instructing to unlock and open the door, and a transmitter that transmits the signals transmitted from the transmitter. a receiver for receiving the signal, and the receiver includes a first determining means for determining whether the key code data included in the received signal matches the key code data held by the receiver; a second determining means for determining whether or not the received signal includes a signal instructing to unlock and open the door if the means determines that they match;
If the determining means determines that a signal instructing to unlock and open the door is included, the second determining means drives the unlock actuator and the door open actuator, and the second determining means determines that the door is unlocked. If it is determined that the door does not include a signal instructing to open, the door is determined to determine whether or not the door was previously clicked, and the door is driven by the unlock actuator or the lock actuator according to the result. That is.

(Example) Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a configuration block diagram showing an example of a device according to the present invention, and FIG. 2 is a conceptual diagram showing an example of application of the present invention, in which the device is used in an automobile.

In these figures, 1 is a remote control key (transmitter), and 2 is a receiver. As shown in FIG. 2, the receiver 2 is installed near where the outer handle of the driver's door 4 of the automobile 3 is to be provided. Note that this device is not provided with an outer handle.

In the remote control key 1, 6 is a microcomputer;
7 is a key code array that provides key data to the microcomputer 6, 8 is a transmitting amplifier controlled by the microcomputer 6, and 9 is the wA!
For example, it is a light emitting element that emits an optical signal on which a data signal is loaded.

SW1 is a switch for instructing locking or unlocking, SW2 is a switch for instructing opening of the door 4, and signals from these are applied to the microcomputer 6.

In the receiver 2, 10 is a light receiving element that receives the optical signal transmitted from the remote control key 1, 11 is a receiving amplifier that amplifies the signal from this light receiving element, and 12 is a receiving amplifier 11.
13 is a key code array that provides key code data to the microcomputer 12; 14 is a power relay unit that inputs control signals from the microcomputer 12; 15 is a signal from this power relay unit 14; A lock actuator driven by the door 4 locks and unlocks the door 4. 17 is an open actuator for slightly opening the door 4, which is driven by a signal from the power relay unit 14.

FIG. 3 is a sectional view of the main part of the door 4. The door 4 is rotatably supported by a door hinge shaft 18, and the shaft 18 has one end in contact with the body 19 side and the other end in contact with the panel side of the door 4. A torsion spring 20 is inserted therein to urge the opening direction of the opening.

Therefore, the door 4 is unlocked by the lock actuator 15, and the open actuator 17
When the door 4 is driven, the torsion spring 20
Due to the force shown in FIG. 3(a), the state shown in FIG. 3(a) changes to a state slightly opened in the six directions of arrows as shown in FIG. 3(b). In the state shown in (b), the door 4 can be opened wide by inserting a hand into the slightly opened gap as shown by the broken line.

FIG. 4 is a functional block diagram showing the main functions of the microcomputer 12 on the receiver 2 side. In the figure, 121 is a first determining means for determining whether the key code data from the receiving amplifier 11 matches the own key code data read from the key code array 13; 122 is the first determining means 121; If the sent key code data is determined to match your own key code data,
Whether the received signal includes a signal instructing to unlock and open the door (on the sending vAl side, when switch SW 2 is pressed, a signal instructing to unlock and open the door is included in addition to the key code data). sent)
123 is a second judgment means for determining whether the signal is to be opened or not (when switch S W 2 is pressed in transmitter 1). case), a first driving means that drives the lock actuator 15 to unlock the door and also drives the door open actuator 17;
124 is a second determination means, when it is determined that the signal instructing to unlock and open the door is not included (when the switch SW1 is pressed in the transmitter 1),
A second driving means that determines whether or not the door was locked last time, drives the lock actuator 15 to unlock the door if the door was locked last time, and drives the lock actuator 15 to lock the door if the door is unlocked last time. be.

The operation of the apparatus configured as described above will be explained below with reference to the flowchart shown in FIG.

After the microcomputer 12 is initialized, it sets the key code data received by the receiving amplifier 11 in a register or the like, and reads out its own key code data set in the *-:)-F array 13 (step 1). Next, the first determining means 121 determines whether the received key code data matches the own key code data (Step 2). If they match, the process moves to Step 3, where the second determining means 122 By,
Determine whether the received signal includes a signal instructing to unlock and open the door. If it is determined in step 3 that it is "included", that is, YES, the process moves to step 4, in which the first driving means 123 first unlocks the door by the lock actuator 15, and
Next, the door is opened by the open actuator 17 (step 4.5). Through the above steps, the door 4 can be left in the ajar state as shown in FIG. 3(B).

In step 3, "not included", i.e. "' N
If it is determined that the door was locked last time, the process moves to step 6, where it is determined whether the door was locked last time.If it is determined that the door was locked last time, that is, YES, the lock actuator 15 is driven. to unlock (step 7), and also select "Do not lock last time", that is, "N".
If it is determined that the lock is "O", the lock actuator 15 is driven to perform locking (step 8). Steps 6 to 8 are performed by the second driving means 124.

By the above-described operation, in the transmission 111, by pressing the switch SW1, the door can be repeatedly locked and unlocked each time, and the door can be repeatedly locked and unlocked each time.
Press to unlock the door and leave it ajar.

Note that all or part of the key code may be written in the ROM in the microcomputer 6.12.

(Effects of the Invention) As explained above, according to the present invention, it is possible to unlock the door and open the door half-way according to instructions from the transmitter, so there is no need to provide an outer handle. Therefore, when applied to an automobile, air resistance can be reduced.

[Brief explanation of drawings]

Fig. 1 is a configuration block diagram showing an example of the device according to the present invention, Fig. 2 is a conceptual diagram showing an example of application of the present invention, Fig. 3 is a sectional view of the main part of the door, and Fig. 4 is the receiver 2 side. FIG. 5 is a functional block diagram showing the main functions of the microcomputer, and FIG. 5 is a flowchart showing an example of the operation. 1... Transmitter 2... Receiver 6.12.
...Microcomputer 7.13...Key code array 8...Transmission amplifier 11...Reception amplifier 15
... Lock actuator 17 ... Open actuator SW1.8W2 ... Switch 121 ... First judgment means 122 ... Second judgment means 123 ... First drive means 124 ... 2. Drive means patent applicant: Shiraki Metal Industry Co., Ltd. Agent: Fuji Ijima, 1 extraterritorial person Figure 3 (b) 171 Open actuator Figure 4 12・' Figure 5

Claims (1)

[Claims] A transmitter that transmits key code data and a signal instructing to unlock and open the door, and a receiver that receives the transmitted signal from the transmitter, and the receiver receives the key code data included in the received signal. a first determining means for determining whether or not the key code data matches one's own key code data; and if the first determining means determines that they match, an instruction is given to the received signal to unlock and open the door; a second determining means for determining whether a signal instructing to unlock and open the door is included; and if the second determining means determines that a signal instructing to unlock and open the door is included, driving an unlock actuator. and a means for driving a door open actuator at the same time as the second determining means determines that a signal instructing to unlock and open the door is not included, determines whether the door was locked last time, and based on the result An electronic key device comprising means for driving an unlock actuator or a lock actuator.