JPS631765A - Ignition device - Google Patents

Abstract

PURPOSE:To improve utility of a vehicle, by a method wherein locking and unlocking of a steering lock mechanism and ignition or accessary switching motion are respectively permitted by inputting and collating a personal code. CONSTITUTION:In an ignition device 1, a microcomputer 3, brought into a starting state through ON-motion of a request switch 2, first controls a transmitter and receiver 5. The transmitter and receiver 5 transmits a call signal to a portable radio device and receives a personal code from the portable radio device to input it to the microcomputer 3. When coincidence with an internal code is collated, through ON-motion of a sub-source switch 7, switching motion of a steering lock switch 9 is practicable. When switching motion of the steering lock switch 9 is inputted, the microcomputer 3 permits ON and OFF motion of an accessary switch 11 and a main source switch 13.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an ignition device used in a vehicle that eliminates the need for a mechanical key.

(Prior art and its problems) In the radio wave type key system disclosed in Japanese Patent Application Laid-open No. 59-2407, an in-vehicle key system that automatically locks and unlocks vehicle doors by receiving a code signal from a transmitter is proposed. It is said that the mechanical key used for door locks is not required.

However, even in the above system, permission to lock/unlock the steering lock, turn on/off the accessory switch, and start/stop the engine (switching the ignition switch) is based on the premise that a mechanical key is used as in the past. There is.

Therefore, the driver must carry the mechanical key with him at all times, and must take out the mechanical key each time he wants to start the engine.

(Object of the Invention) The present invention has been made by improving the above-mentioned conventional system, and its purpose is to lock/unlock the steering lock mechanism.
An object of the present invention is to provide an ignition device capable of permitting the switching operation of an ignition switch and the switching operation of an accessory switch without using a mechanical key.

(Configuration of the Invention) In order to achieve the above object, the present invention is configured as shown in FIG.

In the same figure, a password code is inputted in the password code input means A.

Then, the code verification means B verifies whether the input PIN code matches a pre-stored internal code.

Furthermore, when the above codes match, the permission means C permits the locking/unlocking operation of the steering lock mechanism, the switching operation of the ignition switch E, and the switching operation of the accessory switch F, respectively.

(Description of Embodiments) Hereinafter, preferred embodiments of the ignition device according to the present invention will be described.

Figure 2 shows an ignition device 1 to which the device of the present invention is applied.
A system block diagram of the system is shown.

In the figure, when a request switch 2 provided on an instrument panel or the like is turned on, a microcomputer 3 becomes activated, and the microcomputer 3 first controls a transmitter/receiver 5.

The transceiver 5 transmits a calling signal to the portable radio 40 shown in FIG.

In general, the microcomputer 3 controls the on/off operation of the sub power switch 7, and when the sub power switch 7 is turned on, the steering lock switch 9 can be operated.

Then, when the ON operation signal of the steering lock switch 9 is taken into the microcomputer 3, the microcomputer 3 turns on the ACC power switch (accessory switch).
11 and the main power switch 13 can be turned on and off.

Further, when the main power switch 13 is turned on, the starter switch 15 can be turned on and off.

In general, the microcomputer 3 receives detection signals from a vehicle speed detector 17 and a steering lock state detector 19.

The microcomputer 3 causes the indicator lamp 21 to flicker based on each of the input signals.

Operation of steering lock actuator 23.

On/off operation of the ACC power switch relay 25, on/off operation of the main power switch relay 27, on/off operation of the starter switch relay 29, and on/off operation of the vehicle speed switch 31.

The on/off operation of the PKB switch 33, the on/off operation of the neutral switch 35, and the operation of the chime 37 are controlled respectively.

On the other hand, FIG. 3 shows a system block diagram of a portable radio 140 used in this embodiment. A calling signal is captured, and when this calling signal is captured, the microcomputer 41 becomes activated.

In response to the call signal, the microcomputer 4
1 transmits a password code signal to the ignition device 1 via a transmitting circuit 47 and a loop antenna 49.

FIG. 4 shows a flowchart of the processing procedure performed by the microcomputer 3 of the ignition device 1 when starting the engine.

In the first step 100 in the figure, it is determined whether the request switch 2 is turned on, and if the request switch 2 is turned on, the next step 1
The process advances to 02, where verification processing is performed.

FIG. 6 shows the verification processing procedure, and in the first step 200, a call @ (request signal) is transmitted to the portable radio device 40.

In the next step 202, the system waits to receive a pin code signal transmitted from the portable wireless device 40, and when the pin code signal is received, the process proceeds to the next step 202.
In step 4, it is determined whether the preset password code and the received password code signal match or do not match.

If the received password code signal and the set password match in step 204, the process advances to step 104 in FIG.

On the other hand, if the PIN code received in step 204 and the set code do not match, the microcomputer 3
The process ends.

When proceeding to step 104 as described above, step 1
At step 04, the sub power switch 7 is turned on, and at the next step 106, the indicator lamp 21 is turned on.

The indicator lamp 21 is turned on for a predetermined period of time by a timer (not shown) to prevent unnecessary power consumption and erroneous operation. Incidentally, by lighting the indicator lamp 21, the driver is informed that the steering lock switch 9 can be turned on and off.

In the next step 108, the steering lock switch 9
It is determined whether or not the steering lock switch 9 is turned on, and if the steering lock switch 9 is turned on, the next step 11 is performed.
0, the steering lock actuator 23 is driven and the steering lock is in the unlocked state.

Further, in the next step 112, it is determined whether or not the steering lock unlocking device is completed based on the detection signal from the steering lock state detector 19, and when the steering lock unlocking operation is completed, the ACC The power switch 11 and the main power switch 13 can be turned on and off.

In the next step 114, the ACC power switch 11
It is determined whether or not the ACC power switch 11 is turned on, and if the ACC power switch 11 is turned on, the next step 116 is performed.
The ACC power switch relay 25 is turned on, and the A
CC power is turned on.

Further, in the next step 118, it is determined whether or not the main power switch 13 is turned on, and when the main power switch 13 is turned on, the unlocking operation of the steering lock is completed in the next step 120. After confirming, the next step 122 is to connect the main power relay 29.
is turned on, and the main power is turned on.

When the main power source is turned on as described above, the starter switch 15 can be turned on and off, and in the next step 124 it is determined whether the starter switch 15 has been turned on.

When the starter switch 15 is turned on, in the next step 126, it is confirmed that the vehicle speed is O, the PKB switch is turned on, and the neutral switch is turned on, and the starter switch relay 29 is turned on. It is turned on and the engine starts.

After the engine is started as described above, the vehicle is driven by normal operations.

Next, the processing procedure in the microcomputer 41 of the portable radio device 40 will be explained according to the flowchart shown in FIG.

In the first step 300 in the figure, it is determined whether or not a calling signal wirelessly transmitted from the ignition device 1 has been received, and if the calling signal is received, the next step 302 is to compare the received calling signal with the previously received calling signal. Matching/mismatching with the set calling signal is determined.

If the received calling signal and the set calling signal match, in the next step 304, a password code signal is wirelessly transmitted to the ignition device.

Further, if the calling signal received in step 302 and the set calling signal do not match, the microcomputer 4
The process at step 1 ends.

In this way, the microcomputer 41 of the portable radio device 40
In this step, a process is performed to return a password code signal necessary for operating the ignition device 1.

Next, FIG. 5 shows a flowchart of the processing procedure performed by the microcomputer 3 when the engine is stopped.

In the first step 400 in the figure, it is determined whether the main power switch 13 is turned off, and if the main power switch 13 is turned off, the next step 400 is performed.
At 02, the main power switch relay 27 is turned off.

In the next step 404, the vehicle speed is determined to be O.
It is confirmed that the PKB switch 33 is turned on and that the neutral switch 35 is turned on,
If this is confirmed, it is assumed that the engine is stopped, and in the next step 406, the ACC power switch 1 is turned off.
1 is turned off or not.

If the ACC power switch 11 is turned off in step 406, the ACC power switch relay 27 is turned off in the next step 408.

Furthermore, in the next step 410, it is determined whether the steering lock switch 9 is turned off, and if the steering lock switch 9 is turned off, it is determined that the vehicle speed is O, the PKB switch 23 is turned on, and After confirming that the neutral switch 35 is turned on, in the next step 414, the steering lock actuator 23 is driven and the steering lock is locked.

Note that if it is not confirmed in step 412 that the vehicle speed is O, that the PKB switch 33 is turned on, and that the neutral switch 35 is turned on, it is possible that the vehicle is stopped at -. The processing in the microcomputer 3 ends.

Then, in step 416, it is determined whether or not the steering lock is locked, and the steering lock is locked based on a signal from the steering lock state detector 19 (the lock pin engages with the rotating shaft of the steering wheel to restrict its rotation). If it is confirmed that the microcomputer 3 is configured as shown in FIG.

On the other hand, if the steering lock is not locked in step 416, a chime is sounded in the next step 418 to warn that the steering wheel should be rotated and locked.

In this embodiment, the door can be automatically locked and unlocked based on the password wirelessly transmitted from the portable radio@40, thereby making effective use of the portable radio@40.

As is clear from the above explanation, in this embodiment, the portable radio device 4
Since the ignition device 1 allows the engine to start or stop based on the pin code signal wirelessly transmitted from the ignition device 1, there is no need to use a mechanical key to release the steering lock as in the past. It is possible to improve the operability of the vehicle.

In addition, since the steering lock is locked and unlocked by the steering actuator 23, there is no need to install the steering column in a position where a conventional mechanical key can be used, and the setting position of the steering column can be freely selected. Can be set. Therefore, there is no inconvenience such as the steering column hitting the knees during a collision or when getting on or off the vehicle, and since the column cover can be designed compactly, the tilt position of the steering wheel can be freely selected.

As shown in FIG. 8, as a means for inputting a PIN code for instructing the control operation of the microcomputer 3 of the ignition device 1, a card 40A on which a PIN code is magnetically recorded is inserted into a reading device provided on the instrument panel 50. 50 may be read.

Further, when locking/unlocking the steering lock, the key 60 is left inserted in a conventional key holder 70 as shown in FIG. 9, and the actuator is used to permit or prohibit rotation of the key 60. Also good.

(Effects of the Invention) As is clear from the above description, according to the device of the present invention, when a PIN code is input and verified, the locking/unlocking operation of the steering lock mechanism, the switching operation of the ignition switch, and the switching operation of the accessory switch are performed. Since each of these keys is permitted, it becomes possible to start or stop the engine without using a conventional mechanical key, thereby improving the convenience of the vehicle.

[Brief explanation of the drawing]

Fig. 1 is a complaint response diagram, Fig. 2 is a system block diagram showing the electrical configuration of the ignition device in this embodiment, Fig. 3 is an explanatory diagram of the configuration of the mobile radio used in this embodiment, and Fig. 4 , FIG. 5 and FIG. 6 are flowcharts showing the processing procedure carried out by the ignition device, FIG. 7 is a flowchart showing the processing procedure carried out by the portable radio, and FIG. 8 is an explanation of other pin code input means. 9 are explanatory diagrams of other steering lock locking/unlocking permitting means. 1...Ignition device 2...Request switch 3...Microcomputer 5...Transmitter/receiver 7...Sub power switch 9...Steering lock switch 11...ACC power switch (accessory switch)
13... Main power switch 15... Starter switch 17... Vehicle speed detector 19... Steering lock state detector 21... Indicator lamp 23... Steering lock actuator 25...
・ACC power switch relay 27...Main power switch relay 29...Starter switch relay 31...Vehicle speed switch 33...PKB switch 35...Neutral switch 37...Chime 40... Portable radio 41... Microcomputer 43... Receiving circuit 47... Transmitting circuit 45.49... Loop antenna Fig. 1 Fig. 3 Fig. 5 Fig. 6 Fig. 7

Claims (1)

[Claims] (1) PIN code input means for inputting a PIN code; code verification means for checking whether the input PIN code matches an internal code stored in advance; and locking/unlocking of the steering lock mechanism when both codes match. 1. An ignition device comprising: permission means for respectively permitting the switching operation of the ignition switch and the switching operation of the accessory switch.