JP2840973B2 - Keyless entry system for vehicles - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyless entry system for a vehicle that locks or unlocks a door by inputting keyless information without using a key.

[Related Art and its Problems] Recently, there is a vehicle equipped with a so-called keyless entry system that can lock or unlock a door without using a key.

The keyless entry system operates a door lock system by inputting keyless information such as an electric signal or a reciting number, and can be locked or unlocked without a key, which is extremely convenient. .

On the other hand, the position of the seat in the front-back or up-down direction and the angle of the backrest can be driven by an actuator such as a motor, and storage means for storing these position information is provided. There is a reproducible auto seat position device. According to such an automatic seat position device, the seat position of each of a plurality of drivers operating the vehicle is stored in the storage means, so that the switch operation can be performed. The seat position can be set immediately according to the driver, which is very convenient.

Here, it is conceivable to operate the automatic seat position device based on the keyless information in the aforementioned keyless entry system. In other words, a plurality of different keyless information are prepared, and each keyless information and a seat position of a driver using the keyless information are stored in the storage means in association with each other, and when the keyless information is input, the door is unlocked. Accordingly, the seat is moved to the seat position corresponding to the keyless information (the seat position of the driver to be used is reproduced).

However, with this configuration, if the seat position is finely adjusted after getting on, if the user enters the keyless information when getting off and getting on again, the seat position corresponding to the keyless information is reproduced. In order to obtain the same seat position, it is necessary to perform the adjustment again, which causes a problem that it is troublesome. In other words, it is considered that a situation in which the seat position reproduced and stored is readjusted is often driven by a driver who does not memorize the seat position. Re-adjusting is very cumbersome.

[Object of the Invention] In view of the above-described circumstances, the present invention is intended to prevent the same driver from driving in the case of a short getting-off, in which the seat position is not reproduced by the keyless information. It is an object of the present invention to provide a keyless entry system for a vehicle which can save the trouble of adjusting the seat position e at the time of the vehicle.

[Constitution of the Invention] For this reason, a keyless entry system for a vehicle according to the present invention stores a keyless information input unit, a determination unit for determining keyless information input to the keyless information input unit, and stores the input keyless information. Keyless information storage means, a door lock system for locking or unlocking a door, a power seat system capable of moving and driving a seat,
Activating the door lock system based on the keyless information input to the keyless information input unit and discriminated by the discriminating unit, and locks the vehicle, based on the dismounting detecting means for detecting the driver getting off, the seat position storing means for storing the seat position, and the keyless information inputting unit. And a control device for controlling and driving the power seat system to reproduce the seat position corresponding to the keyless information stored in the seat position storage means,
The keyless information input within a predetermined time after the getting-off detecting means detects the getting-off of the driver is stored in the keyless information storage means. When the information is the same as the information, control is performed so as not to perform sheet reproduction based on the keyless information.

According to this, in the case of a short getting-off that is considered that the same driver is likely to continue to drive, the seat position is not reproduced even if the keyless information is input, and therefore, the seat position is not stored. Even if the driver frequently gets off and gets on the vehicle, it is not necessary to adjust the seat position each time the driver gets on the vehicle.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a functional block diagram of a keyless entry system for a vehicle according to the present invention. In this embodiment, a keyless signal as keyless information is input via a radio wave.

This keyless entry system is mainly composed of a receiving section as a keyless information input section, a discriminating section 2 for discriminating a keyless signal received by the receiving section 1, a keyless signal received by the receiving section 1 and discriminated by the discriminating section 2. And a control device 3 for controlling the operation of the door lock system 5 and the power seat system 6 based on the above.

The control device 3 includes a seat position memory 4 as a seat position storage unit and a RAM 7 as a keyless information storage unit, and receives information from an ignition switch 8 as a getting-off detection unit.

The receiving unit 1 receives a keyless signal from a transmitter possessed by the driver and outputs it to the determining unit 2. Here, in the present embodiment, the keyless entry is possible by the two transmitters A and B 10A and 10B, and the two transmitters 10A and 10B of the A and B transmit different keyless signals respectively. Things.

The discriminating unit 2 determines that the keyless signal received by the receiving unit 1 is A, B
Which signal is to be determined, and the result of the determination is output to the control device 3.

The control device 3 controls the operation of the door lock system 5 and the power seat system 6 based on a signal input from the determination unit 2.

The door lock system 5 includes a door lock controller 51
Lock actuator 52 of each door via the servo mechanism
Are driven to lock or unlock the door, and are locked or unlocked by operation of the switch 53 or a signal from the control device 3.

The power seat system 6 is configured such that the position of the seat in the front-rear or up-down direction and the angle of the backrest can be driven by motors 62 that are actuators. Each of the motors 62 can be driven to set an arbitrary seat position.

The most recently input keyless signal is stored in the RAM 7, and the stored keyless signal is read out to the control device 3 as needed.

The ignition switch 8 outputs a signal to the control device 3 when the ignition device of the engine is energized.

The seat position memory 4 stores the position information of the seat detected by the sensors 41 provided in the seat (power seat system 6). By driving the power seat system 6 based on the stored information, The stored seat position can be reproduced (reproduced). The seat position memory 4 has a capacity capable of storing at least the number of seat positions (the number of keyless signals) of the transmitters 10A and 10B, and corresponds to each of A and B two different keyless signals. To memorize the seat position. The storage of the seat position is performed by operating the switches 4A and 4B.

Next, operation control of the door lock system 5 and the power seat system 6 by the control device 3 will be described.

As described above, the control device 3 activates the door lock system 5 according to the signal input from the determination unit 2 to release the door lock, and also activates the power seat system 6 to respond to the input signals (A, B). The operation is controlled so as to reproduce the seat position stored in the seat position memory 4 in advance, but a keyless signal is input during a predetermined time from when the signal from the ignition switch 8 is stopped, and the input is performed. When the keyless signal is the same as the keyless information input before the signal from the ignition switch 8 is interrupted (the previously input keyless signal, that is, the keyless signal stored in the RAM 7), the sheet reproduction based on the keyless information is not performed. Control.

That is, as shown in the flowchart of FIG. 2, when the signal is interrupted from the state where the signal is input from the ignition switch 8 (engine operation state) (S1), the time from when the signal is interrupted is counted (S2). ). In other words, it counts the time since the engine was turned off, and the actual parking time is counted.

When the keyless signal is input to the receiving unit 1 (S3), the determining unit 2 determines whether the keyless signal is A or B (S4).
Next, the keyless signal determined by the determination unit 2 is
The keyless signal is compared with the keyless signal stored in the RAM 7, and if different, the seat position is reproduced according to the keyless signal (S7). The keyless signal input here is RAM7
If it is the same as the keyless signal stored in the memory, the time t after the signal from the ignition switch 8 is stopped is compared with a predetermined time T (S6), and the predetermined time T Does not elapse, the seat position is not reproduced, and if it has elapsed, the seat position is reproduced (S7).

When the seat position reproduction is performed, the keyless signal is stored in the RAM 7 to prepare for the next keyless signal input.

With such a control configuration, the driver who does not store the seat position operates the switch 63... After boarding, adjusts the seat position again, drives once, gets off the vehicle once, and gets on again using the keyless signal. Even if you do, if the elapsed time after getting off is within the predetermined time: T,
The seat position is not reproduced by the keyless signal, and there is no need to readjust the seat position each time the user gets on the vehicle. Here, if the driver who has memorized the seat position gets on using the keyless signal, and gets off once for a predetermined time after getting off the vehicle, and gets on with the keyless signal within T, the seat position is not reproduced, but the seat position is not reproduced. There is no problem because there is no need to adjust the position.

In the above embodiment, the signal from the ignition switch is used as the getting-off detection means. However, the present invention is not limited to this.
It may be configured by detecting opening and closing of a door or by providing a switch on the seat.

[Effect of the Invention] As described above, according to the keyless entry system for a vehicle according to the present invention, the keyless information input within a predetermined time after the getting-off detection unit detects the getting-off is the same as the keyless information input before getting off. By not configuring the seat regeneration based on the keyless information at the time, the keyless information is used when the driver who does not memorize the seat position is re-adjusting the seat position and driving. Also, if the user gets off the vehicle within a predetermined time, the seat position is not reproduced, and the trouble of re-adjusting the seat position each time the user gets on the vehicle is reduced.

[Brief description of the drawings]

FIG. 1 is a functional block diagram of a keyless entry system for a vehicle according to the present invention, and FIG. 2 is a flowchart of an operation control thereof. DESCRIPTION OF SYMBOLS 1 ... Reception part (keyless information input part) 2 ... Determination part 3 ... Control device 4 ... Position memory (seat position storage means) 5 ... Door lock system 6 ... Power seat system 7 ... RAM (keyless Information storage means) 8 Ignition switch (get-off detection means)

Continuation of the front page (51) Int.Cl. ⁶ Identification symbol FI G07C 9/00 G07C 9/00 Z (56) References JP-A-2-60856 (JP, A) JP-A-3-263756 (JP, A JP-A-64-52550 (JP, A) JP-A-61-232948 (JP, A) JP-A-3-276849 (JP, A) JP-A-63-11460 (JP, A) 26577 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B60R 25/10, 25/617 B60N 2/02 E05B 65/20 E05B 49/00 K G07C 9/00 Z B60R 25 / 00 606

Claims (2)

(57) [Claims] A keyless information input unit; a determination unit for determining keyless information input to the keyless information input unit; a keyless information storage unit for storing the input keyless information; A door lock system, a power seat system capable of moving and driving a seat, an alighting detection means for detecting a driver getting off, a seat position storage means for storing a seat position, and a key position information input to the keyless information input unit. Based on the keyless information determined by the determination unit, the door lock system is operated to release the lock, and the power seat system is used to reproduce a seat position corresponding to the keyless information stored in the seat position storage means. And a control device for controlling and driving the vehicle. When the keyless information input within a predetermined time after the means detects the driver's getting off is the same as the keyless information stored immediately before the driver getting off stored in the keyless information storage means, the keyless A keyless entry system for a vehicle, characterized in that control is performed so as not to perform seat regeneration based on information. 2. The keyless entry system for a vehicle according to claim 1, wherein said drop-off detection means detects that a signal from an ignition switch has been interrupted.