JPS6112457A - Shift lever locking device - Google Patents

Abstract

PURPOSE:To surely provide a burglarproof measure for a vehicle, by enabling a shift lever locking device to be locked only when a shift lever is set at a predetermined position and to be released from its locked condition if input data are valid. CONSTITUTION:When detection is made such that a shift lever M1 for carrying out the speed change of an automobile is set at a predetermined position such as, for example, its parking position indicating the parking condition of the automobile, a locking means M2 for locking a locking cam 310 formed therein with a notch by means of a locking solenoid 320 is actuated to lock the shift lever M1. A decoder M5 is provided in the same housing M4 as for the locking means M2, and releases the locking condition of the locking means M2 when input data received by an input means M3 coincide with data previously stored in a memory. With this arrangement the vehicle may be surely prevented from being thieved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a shift lever lock device for preventing vehicle theft.

[Prior Art 1] Conventionally, as shown in Japanese Patent Laid-Open No. 58-164434, a shift lever lock device has conventionally been used in which, when parking, the engine start key cannot be removed unless the shift lever is placed in the parking position. A shift lever lock device has been proposed in which the shift lever is locked in the parking position when the engine start key is removed.

Furthermore, as seen in Japanese Patent Application Laid-Open No. 57-140253, the accelerator is locked when the driving attitude detection switch does not detect the driving attitude, and the accelerator lock is released by operating an appropriate code code on the keyboard of the driving attitude detection means of the switch. It has been proposed that the

However, in the previous example, the key is mechanical, so there is a risk of it being lost. Furthermore, since the shift lever is locked by a mechanical structure, there is a drawback that the lock can be unlocked by unauthorized means. Furthermore, in the latter example, the accelerator is locked when the door is opened, the seat belt is unfastened, or the driver leaves the driver's seat, so there is a drawback that unlocking the accelerator is complicated. Furthermore, since the decoding section for decoding the code is not sealed, there is a problem in that the signal is easily decoded.

[Object of the Invention] The present invention has been made in view of the above points, and its purpose is to make it impossible for the input signal to the shift lever lock device to be operated by a person, and to improve the anti-theft ability. It is an object of the present invention to provide a shift lever lock device.

[Synopsis of the Invention] As shown in the basic configuration diagram of FIG. 1, the structure of the first invention, which has been made to achieve the above object, includes a shift lever Ml for performing a gear change operation of a vehicle engine, and a shift lever Ml for performing a gear change operation of a vehicle engine. A locking means M2 locks the shift lever only when the shift lever is in a predetermined position, an input means M3 inputs data from the outside, and is installed in the same housing M4 as the locking means M2. a decoding means M5 that unlocks the locking means M2 only when the input data to be input matches the data stored internally in advance;
The gist of the present invention is a shift lever lock device characterized by comprising: and.

Further, the configuration of the second invention, as shown in the basic configuration diagram in FIG. 2, includes shift I to lever M11 that perform gear change operations of the vehicle engine, and a signal that detects intrusion into the vehicle by unauthorized means and indicates the intrusion. an intrusion detection means M20 that outputs the intrusion detection means M2;
locking means M12 that locks the shift lever only when a signal from 0 is input; input means M13 that inputs data from the outside; The gist of the shift lever lock device is a shift lever lock device comprising: decoding means M15 that unlocks the locking means M12 only when input data input from M13 matches data stored in the interior in advance. .

The present invention will be described below with reference to examples and drawings.

[Embodiment] FIG. 3 shows an embodiment in which the shift lever lock device of the first invention is applied to an automobile. Here, the vehicle according to the embodiment is an automatic transmission vehicle.

Reference numeral 100 is a shift lever for changing gears of the automobile.

This shift lever 100 is in a parking position (hereinafter referred to as P position) indicating a parked state in which the vehicle is not running.
has.

In addition, the neutral position (hereinafter referred to as
This is called the N position. ), reverse position (hereinafter referred to as R position), drive position (hereinafter referred to as D position), and second position (hereinafter referred to as 2 position).

), and a low position (hereinafter referred to as the L position).

Next, 300 is a locking device as a locking means for locking the shift lever 100. This lock equipment 300
has an electromagnetic lock solenoid 310 and a lock cam 320 with a notch. and neutral switch 60
If the P position is detected based on the signal from 0, the lock solenoid 310 is locked by the lock cam 320, making it impossible to rotate the shift lever 100. Further, when a digital signal "0" is input from a discrimination circuit 900 to be described later, the lock is released. Note that the lock solenoid 310 and the lock cam 320 are housed in the same housing 400.

That is, the lock solenoid 310 and the lock cam 320 are sealed in the accommodation space of the housing 400 which is integrated by press molding, and has a structure in which no jig can be inserted. This lock device 300 is attached to a switching shaft of a transmission (not shown).

Next, 500 is an input circuit as input means for inputting data from the outside. This input circuit 500 has a signal line 53
Signal lines 812-8 for indicators via 0-534
16. The circuit 500 consists of a numeric keypad 510 and an encoder 520. The numeric keypad 510 is 011.
It has 10 press-type input keys 2, . . . , 9, each of which generates a signal specific to the pressed key. Encoder 520 has 10 input terminals connected to input keys and 5 output terminals connected to signal lines 530-534. Then, when a password, for example, is entered from the numeric keypad 510, this data is transferred to the encoder 520.
It is converted into a BCD code (binary coded decimal code). That is, when a signal is output from the numeric keypad 510 to the encoder 520, Q of the output terminals of the encoder 520 is output.
A 4-bit signal is output from o''-Qa, and a strobe signal is output from the STB terminal. This strobe signal outputs a digital signal "1" only while a signal is being input from the numeric keypad 510.

Next, 600 is a neutral switch that indicates which shift position the shift 1 to lever 100 are at.

As shown in the figure, this neutral switch 600 has nine terminals from B terminal to LB terminal. Also, each terminal RB-
LB is connected to the indicator 8 via signal lines 812 to 816.
02 to 806, and also connected to the discrimination circuit 900. Further, the indicator lamp 801 is grounded via the E terminal and the PB terminal. Then, the starter relay ST of the starter switch 700 is connected to the B terminal and the N terminal.
The terminal is connected to the battery 750 via a signal line 760. A shift position indicator 800 is composed of six indicator lamps 801 to 806 that indicate the shift position. The same lamps 801 to 806 are the starter switch 70
Connect to the IG terminal of 0. ■The G terminal is the ignition coil terminal.

The discrimination circuit 900 is installed in the same housing 400 as the lock equipment 300. And input circuit 500
A digital signal "O" is output to the lock cam 320 and the lock equipment 300 is unlocked only when the input signal from the lock cam 300 matches the signal stored internally in advance.

Next, the configuration of the discrimination circuit 900 as shown in FIG. 4 will be explained. The circuit 900 decodes data from the input circuit 500. The circuit 900 is composed of a code temporary storage circuit 910, a code storage circuit 920, and a comparison circuit 930. In the decoding circuit 900, input data inputted from the input circuit 500 via the neutral switch 600 is stored in a code temporary storage circuit 910, and the input data is compared with data such as a password stored in advance in the code storage circuit 920. The circuit 930 compares the data, and only when the data match, the lock cam 320
A digital signal rOJ is output to the terminal.

Next, the operation of the shift lever lock device will be explained according to the circuitry of the neutral switch 60O listed in Table 1.

In Table 1, P, R, N, D12, and L are shift levers.
Each of the 100 Schiff I-positions is shown. B, N1E, PB, R
BLNB, DB, 2B, LB are neutral switches 6
Each terminal of 00 is shown. The straight line connecting the circles and the circles in the table indicates that the terminals marked with circles are connected to each other.

For example, when the shift lever is moved to the P position, the B terminal and the N terminal are connected, and the ST terminal of the starter relay is closed. Therefore, the automobile can be started by rotating the ignition key.

Further, the E terminal and the PB terminal are connected, and the indicator lamp 801 lights up. Similarly, in the R position, the indicator lamp 802 lights up. At the N position, the ST terminal of the starter relay is closed and the indicator lamp 803 lights up. In the D position, the indicator lamp 804 lights up, in the 2 position, the indicator lamp 805 lights up, and in the - position, the indicator lamp 806 lights up.

Then, the vehicle driver presses shift lever 100 to park.
When the IG terminal is set to the P
It recognizes that the position is correct and outputs a digital signal “1” to the lock cam 320. Therefore, the lock solenoid 310 is locked by the lock cam 320, and the shift lever 1 is locked.
00 cannot rotate. Therefore, the car will be free from the danger of theft.

Then, when the driver wishes to drive again and enters a personal identification number known only to the driver, for example r2723J, the lock is released. In other words, as shown in Figure 3, the numeric keypad "
When "2" is pressed, a signal representing the code corresponding to "2" is outputted from the output terminals Qo to Q3 to the discrimination circuit 900 via the signal lines 530 to 533, the signal lines 812 to 815, and the neutral switch 600. Similarly, when the numeric keypad [7] is pressed, a signal representing the code corresponding to this "7" is output to the discrimination circuit 900. Then, sequentially numeric key “2”
” and “3” are sent to the discrimination circuit 900, respectively.

Also, a strobe signal is sent from the output terminal STB to the signal line 53.
4. The signal is sent to the discrimination circuit 900 via the signal line 816 and the neutral switch 600. That is, numeric keypad "2",
The strobe signal "1" is output only while "7", "2", and "3" are pressed. Therefore, the discrimination circuit 900 takes in the input signal only while the discrimination circuit 900 inputs the strobe signal. Furthermore, as is clear from Table 1,
In the D position, the signal lines 812 to 816 are not used, so the indicator lamps 802 to 806 are not lit. Therefore, the signal from the input circuit 500 is reliably sent to the discrimination circuit 900 without being grounded.

In this way, only when the data stored in advance in the discrimination circuit 900 and the input data from the input circuit 500 match, the discrimination circuit 900 outputs the digital signal 10 to the lock cam 320. Therefore, the lock equipment 300 is unlocked.

As described in detail above, the shift lever lock device according to the embodiment operates the lock device 300 only when the shift lever 100 is placed in the P position. Therefore,
Once the lock device 300 stops operating, it is impossible for anyone other than the driver of the vehicle to restore the lock device 300, no matter what means. Therefore, reliable theft prevention can be achieved.

Since the signal lines 812 to 816 of the indicator 800 also serve as signal lines from the input circuit 500 to the discrimination circuit 900, the device can be miniaturized.

Further, the lock equipment 300 and the discrimination circuit 900 are installed in the same housing 400. Therefore, it is impossible for a vehicle intruder to manipulate the coincidence/mismatch signal of the decoding result of the discrimination circuit 900, so that a situation where the vehicle is unlocked without knowing the password is not caused. Therefore, theft prevention becomes even more reliable.

Also, normally, when the discrimination circuit 900 and the lock equipment 300 are placed in the same housing 400, it is necessary to send a code signal, and generally it is necessary to send a code signal through 1 to 2 lines for serial signal transmission and 4 to 5 lines for parallel signal transmission. It becomes necessary. Therefore, a complicated circuit is required to take signal timing for both serial signals and parallel signals. However, since the encoder 520 outputs the hestrop signal to the discrimination circuit 900 and the signal is taken into the discrimination circuit 900 only at that time, there is no need to provide a complicated timing circuit.
0 is simplified and miniaturized.

In addition, the input circuit 500 may be of any type as long as it can input information known only to the driver of the vehicle, so it may be one that selects a special arrangement of symbols, a magnetic card, or a release switch hidden inside the vehicle. Any configuration may be used, such as one in which a dedicated switch is operated.

Alternatively, an automatic locking mechanism that does not require the driver of the vehicle to perform a locking operation himself/herself when leaving the vehicle may be adopted to prevent the driver from forgetting to lock the vehicle.

FIG. 5 shows an embodiment in which the shift lever lock device of the second invention is applied to an automobile. This embodiment has the same configuration as the embodiment of the first invention, but an intrusion detection circuit 200 is provided,
The lock device 300 is activated only when an intrusion is detected.

This intrusion detection circuit 200 is an intrusion detection circuit that detects an intrusion into the vehicle due to an abnormal operation when the vehicle is stopped, and outputs a digital signal indicating the intrusion. That is, when the circuit 200 detects an intrusion, it outputs a digital signal "1" to the lock device 300, and outputs "0" in the non-intrusion state.

Next, the intrusion detection circuit 200 as shown in FIG. 6 will be explained. The intrusion circuit 200 includes five switches 201.20
2.203.204.205, a resistor 206, a NOT circuit 207, a courtesy lamp 208, a negative logic AND circuit 209, and a negative logic RS flip-flop 210. That is, 201 is a door lock switch that opens only when the locking mechanism of the car door is in operation, and the four switches 202 to 205 are for operating the courtesy lamp 208 that is installed on all the doors of the car. Represents a courtesy lamp switch that opens when the door is opened. 206 is a resistor connected to the battery 260 and the door lock switch 201, 207 is a knot circuit connected to the intermediate point between the door lock switch 201 and the resistor 206, and 208 is a resistor connected to the battery 260 and each of the courtesy lamp switches 202 to 205. As shown in the figure, the connected courtesy lamp 209 is a two-man negative logic AND circuit 210 which inputs digital signals from the intermediate point between each of the courtesy lamp switches 202 to 205 and the courtesy lamp 208, and from the knot circuit 207. is connected to the AND circuit 209, and once the digital signal "0" is input from the set terminal, the reset signal [
0] is input and the digital signal is “1” unless reset.
represents an RS flip-flop that continues to output .

Due to the above configuration, the intrusion detection circuit 200 operates as follows. First, when the vehicle driver activates the door lock for parking, the door lock switch 201 is released from the open state and applies a high level voltage to the knot circuit 207. Then, a low level voltage is applied to the AND circuit 209.

On the other hand, in this state, that is, the door is locked, the courtesy lamp switches 202 to 205 are normally in an open state because the door is closed, and a high level voltage is applied to the AND circuit 209. Therefore, since a high level voltage and a low level voltage are applied to the two terminals of the AND circuit 209, the digital signal "1" is output from the AND circuit 209.
is output to the RS flip-flop 210, and as a result,
The RS flip 70 knob 210 is not set and outputs a digital signal "0".

However, if any door is opened by some unauthorized means in this state, the courtesy lamp switches 202-2
At least one of 05 is closed and a low level voltage is applied to the AND circuit 209. Therefore, AND circuit 2
The digital signal [0] from 09 is output to the RS flip-flop 210, and as a result, the R87 lip 70 block 2
10 is set and outputs a digital signal "1". Therefore, a theft condition is detected.

In other words, the intrusion detection circuit 200 is connected to the door lock switch 20
1 is in the open state, the digital signal [[
1]. Therefore, the lock solenoid 310 is locked by the lock cam 320, and the shift lever is
100 becomes unrotatable. Therefore, the car will be free from the danger of theft.

If a theft condition is detected in this way, the driver wishes to drive again and enters a PIN number known only to the driver, such as R27.
When 23J is input, the lock is released as described in the embodiment of the first invention.

That is, only when the data stored in advance in the discrimination circuit 900 and the input data from the input circuit 500 match, the discrimination circuit 900 outputs a digital signal "0" to the lock cam 320.
is output. Therefore, the lock equipment 300 is unlocked.

As shown in FIG. 5, when no theft is detected, the driver wishes to drive the vehicle again and the door lock switch 20 is activated.
When the operation of "1" is released, the door lock switch 201 is closed and a low level voltage is applied to the AND circuit 209, so that the AND circuit 209 outputs a digital signal "1". Therefore, since the flip 70 knob 210 is not set, the locking device 300 is not locked and the vehicle can be driven.

As detailed above, the shift lever lock device according to the embodiment has the following effects in addition to the effects of the embodiment of the first invention. That is, the lock device is activated only when the door is opened by unauthorized means and the courtesy lamp switches 202 to 205 are opened even though the door lock of the vehicle is activated. Therefore, -Japanese rock equipment 3
00 is deactivated, it is impossible for anyone other than the driver of the vehicle to restore the lock device 300 no matter what means. Therefore, reliable theft prevention can be achieved.

Further, when the driver returns to the car and starts the car, the courtesy lamp switches 202 to 205 are activated even though the car doors have been locked until then.
It is possible to start the car immediately unless an abnormal situation occurs in the car, such as the door being closed.

Furthermore, if the intrusion detection circuit 200 is activated and the locking device 300 is in the locked state, the shift lever will indicate that the vehicle was in danger of being stolen while the vehicle driver was away. It can be recognized by the inactivation of -1OO. Furthermore, an excellent effect is achieved in that the function of the shift lever 100 can be easily restored by inputting a personal identification number or the like to the input circuit 500.

In this embodiment, a combination of a door lock switch 201 and courtesy lamp switches 202 to 205 is used as the intrusion detection circuit 200, but when the door glass is broken, it can be detected by cutting the transparent electrode embedded in the door glass. There are also those that detect the sound of door glass breaking using a microphone, and those that detect the operation of some electrical component of the car with the doors locked based on battery voltage fluctuations. Either of these configurations or a combination thereof may be used.

Although the embodiments have been described above, it goes without saying that the present invention is not limited to these embodiments in any way and can be implemented in various forms without departing from the gist of the invention.

[Effects of the Invention] As described in detail above, in the shift lever lock device according to the first invention, the shift lever lock device locks only when the shift lever is at a predetermined position.

Further, the locked state is configured to be released by an input means and a release means installed in the same housing as the lock means, if the input data is valid.

Therefore, it is impossible for the vehicle intruder to know the release result of the release means. Therefore, theft prevention becomes even more reliable.

' Also, in the shift lever lock device according to the second invention, when the vehicle intrusion detection means detects that an abnormal situation has occurred in the vehicle, the shift lever lock device locks. . Further, the locked state is configured to be released by input means and release means when the input data is valid.

Therefore, if the vehicle is in danger due to unauthorized means, the vehicle shift lever lock device will be locked.

Therefore, it is no longer possible to start the vehicle by any means. Therefore, the anti-theft function of the vehicle can be enhanced.

Further, when the vehicle user who leaves the vehicle returns to the vehicle, he or she can recognize whether or not the vehicle has been invaded by checking whether the shift lever is operated.

When the vehicle user desires to start the vehicle, the vehicle can be started immediately by simply inputting input data known only to the vehicle user into the input means.

Furthermore, the lock equipment and the release means are installed in the same housing. Therefore, it is impossible for the vehicle intruder to know the release result of the release means. Therefore, theft prevention becomes even more reliable.

[Brief explanation of the drawing]

FIG. 1 is a basic configuration diagram of a shift lever lock device according to the first invention, FIG. 2 is a basic configuration diagram of a shift lever lock device according to the second invention, and FIG. 3 is a basic configuration diagram of a shift lever lock device according to the second invention. A block diagram of a shift lever lock device for an automobile, FIG. 4 is a block diagram of a discrimination circuit, FIG. 5 is a block diagram of a shift lever lock device for an automobile according to an embodiment of the second invention, and FIG. 6 is a block diagram of an intrusion detection circuit. Represents a block diagram. 100...Shift lever 300...Lock equipment 400...Housing 500...Input circuit 600...Null switch 800...Indicator 900...Discrimination circuit

Claims (1)

[Scope of Claims] 1. A shift lever for performing a gear change operation of a vehicle engine, a locking means for locking the shift lever only when the shift lever is in a predetermined position, and an input means for inputting data from the outside. , a decoding means installed in the same housing as the locking means and unlocking the locking means only when input data input from the input means matches data stored in the interior in advance. A shift lever lock device characterized by: 2. A shift lever that operates the speed change of the vehicle engine; an intrusion detection means that detects intrusion into the vehicle by unauthorized means and outputs a signal indicating the intrusion; and only when a signal from the intrusion detection means is input, the above-mentioned shift A locking means for locking the lever and an input means for inputting data from the outside are installed in the same housing as the locking means, and the input data input from the input means matches the data stored internally in advance. A shift lever locking device comprising: decoding means for unlocking the locking means only when the locking means is activated.