JPH06227364A - Engine starter - Google Patents

Abstract

PURPOSE:To let a device have both key check operating and engine starting functions by providing a second processing circuit which feeds an engine ignition system with an engine starting signal at a time when an ID code out of the identification codes is judged as a normal one after being collated with a code stored in a memory. CONSTITUTION:At a time when a tuner has received an identification code, a second microcomputer 54 judges that weather the ID code is normal or not by means of its collating work. When the ID code set and stored in a read-only memory 39 via a first microcomputer 32 is read out, and the read ID code is accorded with the received ID code after collation, an engine starting signal is outputted to an engine ignition system, making an engine get starting, and when it is so judged that this ID code is not normal, no signal is outputted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine starting device used for starting an engine by remote control.

[0002]

2. Description of the Related Art Recently, as a user of a vehicle becomes more advanced, a device for locking / unlocking a door by wireless and for wirelessly idling an engine without getting into a vehicle has come to be sold at a low price. I will explain them in detail. For example, as a key device for locking and unlocking the door, Japanese Patent Publication No. 4-15
There is something like that shown in No. 141.
6 to 6 will be described.

In the figure, the lock 10 has a key insertion hole 12
An annular rotor case 14 is fixed to the entrance side of the key insertion hole 12 of the lock 10.
A cylindrical rotor 16 is rotatably mounted inside the rotor case 14. A key insertion hole 18 communicating with the key insertion hole 12 is formed in the rotor 16.
Further, on the outer circumference of the rotor 16, as shown in FIG.
An annular core 22 having a tapered surface on its inner surface is arranged. One end 22A of the annular core 22 is formed in a tapered shape and is exposed at the entrance end of the key insertion hole 18. The rotor coil 2 is attached to the annular core 22.
4, 26 are wound in the same direction.

Further, each rotor coil 24, 26 is shown in FIG.
As shown in FIG. 3, it is connected to the frequency variable oscillator 30 via the resistor 28. The variable frequency oscillator 30 supplies a signal for information detection to the rotor coils 24 and 26 in response to a command from the microcomputer 32.

Further, the rotor coils 24 and 26 are the amplifier 3
4, diode 36, capacitor 37, A / D converter 3
It is connected to the microcomputers 24 and 26 via 8. Then, information on the current flowing through the rotor coils 24 and 26 is detected as a voltage drop of the resistor 28, and the detected output is the amplifier 34, the diode 36, and the A / D converter 38.
It is supplied to the microcomputer 32 via.

The microcomputer 32 as the control means controls the operation of an engine drive system (not shown) based on the information from the A / D converter 38. That is, the information based on the signal from the A / D converter 38 is compared with the determination information stored in advance in the ROM 39, and the engine drive permission signal is output to the engine drive system only when the contents of the two match. It is supposed to do.

Further, the tip side 20C of the grip portion 20B of the key 20 is formed in a tapered shape capable of engaging with the tapered surface of the annular core 22. Then, in the middle of the tip side 20C, the shaft-shaped core 40 is formed so as to connect the pair of tapered surfaces.
Is installed. When the key 20 is inserted into the key insertion hole 12, the shaft-shaped core 40 allows the rotor coil 24,
A key coil 42 that is magnetically coupled to the coil 26 is wound in one direction. The key coil 42 is connected to the coil L1 and the capacitor C1 that form a resonance circuit, and
Similarly, a resonance circuit is formed and a coil L is formed in the resonance circuit.
2, connected in parallel to the capacitor C2. The capacitances of the coils L1 and L2 and the capacitors C1 and C2 are set so that the resonance frequencies of the resonance circuit are different from each other.

A signal for information detection is supplied from the variable frequency oscillator 30 to the rotor coils 24 and 26, and when the frequency of this signal is changed from the lower side to the higher side as shown in FIG. A current according to the change in frequency flows through the rotor coils 24 and 26. The current I1 in FIG. 6 indicates a current value due to resonance of the coil L1 and the capacitor C1, and the current I2 is the coil L2 and the capacitor C.
2 shows the current value due to resonance.

The current shown in FIG. 6 is supplied to a microcomputer 32 (which is called the first microcomputer in this embodiment) via an amplifier 34, a diode 36 and an A / D converter 38, respectively. Then, these pieces of information are sequentially read by the microcomputer 32, the determination signal is compared with the information stored in the ROM 39 in advance as the determination information, and only when the signal matches the determination information, the engine drive permission signal is output. If the key 20 is configured to output,
It is possible to drive the engine only when it is inserted in 8. This prevents the vehicle from being stolen due to unauthorized unlocking.

Next, a wireless engine starting device is shown in FIG.
And it demonstrates based on FIG. That is, in the figure, EC
Is an engine starter, 51 is a receiving antenna, 5
2 is a tuner, 53 is an input control circuit, 54 is a microcomputer (the name is changed to the second microcomputer in the embodiment), 55 is an engine starter power supply control circuit, 56 is an ignition power supply control relay, 57 is an accessory power supply control relay, Reference numeral 58 denotes a key switch, which is turned off when no key is inserted.

A parking brake switch 59 is a switch that is turned off when the side brake of the vehicle is applied. A gear position detection switch 60 is closed when the gear is in the parking position. Reference numeral 61 is an in-vehicle battery power supply line, and 62 is an ignition switch. Reference numeral 71 denotes a transmitter having a switch, and when the switch is turned on, an engine start signal is transmitted from an antenna 72.

That is, the engine start signal sent from the transmitter 71 is received by the receiving antenna 51.
Then, the received engine start signal is detected by the tuner 52. Then, the ID code and the function code are demodulated from the received engine start signal and input to the microcomputer 54.

The microcomputer sends a signal for starting the engine on condition that the parking brake switch 59 is on, the gear detection position switch 60 is on, and the key switch 58 is off according to the input function code. , Each relay 57, 58, 5
Then, the data is sequentially output in the order of 9.

Further, the microcomputer 54 includes a parking brake switch 59 and a gear detection position switch 6
0, when one of the above conditions is not satisfied in the key switch 58, an engine stop signal is output,
The engine will not start. Further, when the engine is being driven, it is automatically stopped. This is because it is prohibited to start the engine and move the vehicle by remote control according to Article 11-2 of the safety standard.

When the engine is stopped, the engine is manually started again to move the vehicle. Further, FIG. 8 is a flowchart showing a characteristic part when the engine is started or stopped wirelessly.

[0016]

However, in such a device, each device has only a single function, and if both functions are desired, purchase each of them. Since it is necessary to carry the two devices, it is necessary to carry the two devices at all times, which causes a problem for the user.

When the engine starting device is connected to a vehicle having a key collating device with an ID code, the ID code of the key is not collated even if a starting signal is generated from the engine starting device. Therefore, there is a problem that the engine does not start.

Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to integrate both functions so that the user can carry it conveniently.

[0019]

An engine starter according to the present invention is equipped with a circuit in which an ID code is uniquely set, and a key for outputting an engine start signal together with the ID code by an operation, and the key. From the key received by the ID code receiving means, the ID code receiving means arranged near the key insertion hole of the lock to be inserted, the memory in which a code for collating the ID code is set and stored, The ID code is collated with the code stored in the memory to determine whether or not the ID code is normal, and the normal I
A first processing circuit that outputs an engine drive permission signal to the engine ignition system when it is determined to be a D code, a reception unit that wirelessly receives an engine start signal from the key and an ID code, and a radio wave reception unit. A second processing circuit for supplying the engine starting signal to the engine ignition system when the ID code of the engine starting signal and the ID code is collated with the code stored in the memory and determined to be a proper code. It is a thing.

[0020]

According to the present invention, since the two functions can be integrated, the key confirmation work function and the engine starting function can be provided in one device, which can be easily carried in a pocket. .

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment according to the present invention will be described below with reference to FIG. 1, and a second embodiment will be described in detail with reference to FIG. Note that in FIGS. 1 and 2, FIGS.
The same or equivalent components as those of the conventional example shown in FIG. 1 are designated by the same reference numerals, detailed description thereof will be omitted, and only different portions will be described.

[First Embodiment] In FIG. 1, when the tuner 52 receives an ID code, the second microcomputer 54 determines whether or not the ID code is authentic by collation work. , The ID set and stored in the ROM 39 via the first microcomputer 32
When the code is read and the read ID code and the received ID code are collated and matched, an engine start signal is output to an engine ignition system (not shown) to start the engine, and a normal ID When it is determined that the code is not a code, no output signal is output.

[Second Embodiment] This embodiment differs from the first embodiment in the following points. That is, the first
In the embodiment, the ID code is set and stored in the ROM 39 from the beginning, but the storage element is replaced with the ROM and the EEPROM is used.
39, the ID code can be stored when the need arises. Therefore, as shown in FIG. 2, for example, in the gear position detecting unit 65, when the movement of the shift lever from the neutral position to the drive position is detected, and the movement is continuously switched several times within a fixed time, the first The microcomputer 32 judges that it is an ID code registration command and causes the EEPROM 39 to register the ID code received by the antenna 51 and the tuner 52. At this time, the transmitter 71 transmits the ID code and the engine start signal, but since the ID code is not registered in the EEPROM 39, the engine start signal is not output from the second microcomputer 54 to the engine ignition system. .

Although the two microcomputers 32 and 54 are shown separately for the sake of explanation in each of the first and second embodiments, there is no need to make them separate in practice, and one microcomputer is not necessary. Needless to say, it is better to do so because signal processing with a computer can be constructed cheaper.

[0025]

As described above, according to the present invention, 2
Since two devices can be integrated into one device and can be carried in a pocket etc., it is easy to use and more convenient.

[Brief description of drawings]

FIG. 1 is a circuit configuration block diagram for explaining a first embodiment of an engine starting device according to the present invention.

FIG. 2 is a circuit block diagram for explaining a second embodiment of the engine starter according to the present invention.

FIG. 3 is an overall explanatory view of a conventional anti-theft key device.

FIG. 4 is an explanatory diagram of a rotor core and a rotor coil wound around it in FIG.

5 is a circuit block diagram connected to the anti-theft key device shown in FIG. 3. FIG.

FIG. 6 is an explanatory view of the operation of FIG.

FIG. 7 is a circuit block diagram of an engine starting device showing a conventional example.

FIG. 8 is a flowchart illustrating the operation of FIG. 7.

[Explanation of symbols]

 20 key 24, 26 rotor coil 38 A / D converter 32, 54 microcomputer 39 ROM 51, 72 antenna 52 tuner 55, 56, 57 relay 58, 59, 60 switch 62 ignition switch 71 transmitter

Claims (1)

[Claims] 1. A circuit in which an ID code is uniquely set (L
1, C1, L2, C2) are mounted and keys (2 to output an engine start signal together with the ID code by operation
0) and the ID code receiving means (2) arranged in the vicinity of the key insertion hole (12) of the lock (10) into which the key is inserted.
4, 26), a memory (39) in which a code for collating the ID code is set and stored, and the key (2) received by the ID code receiving means (24, 26).
The ID code from 0) is collated with the code stored in the memory (39) to determine whether it is a normal one, and when it is determined to be a normal ID code, an engine drive permission signal is output to the engine ignition system. A first processing circuit (32), receiving means (51, 52) for wirelessly receiving the engine start signal and the ID code from the key (20), and the engine start signal, ID received by the radio wave receiving means. A second processing circuit (54) for supplying the engine start signal to the engine ignition system when the ID code of the codes is collated with the code stored in the memory (39) and determined to be a normal code. An engine starting device characterized in that