JPS62174477A - Electronic key system for vehicle - 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] (Industrial Application Field) The present invention relates to a vehicle electronic key system that replaces a mechanical key for opening and locking the doors of a vehicle such as an automobile, and particularly relates to a vehicle electronic key system that can be used not only for doors but also for mechanical keys. The present invention relates to a novel vehicle key system that can operate all operated elements, such as the trunk, glove box, ignition switch, etc., and which has unique characteristics superior to mechanical keys and conventional electronic keys.

(Prior art) FIGS. 29 to 31 show recent patent applications, for example, patent applications filed in 1980-1.
This is a type of vehicle electronic key system proposed in No. 7868!3, etc., and indicates a vehicle door unlocking/locking device.

FIG. 29 shows a transmitter (130) carried by a car driver among this type of system.
Transmission 22) (130) has a push button for the door (A) and a push button for the trunk (B) on the casing (131)
It is equipped with (132) is an infrared light emitting element, (1
33) is a monitor light emitting element such as a light emitting diode that emits visible light.

Fig. 30 is an electrical system diagram of such a transmitting unit (130), and in Fig. 1, the above-mentioned light emitting element (132)
, Components other than (113) include (135) a battery power supply, (131 () a switch circuit for push buttons (A) and (B)), and (137) a start pulse signal and key code signal and operation described later. A signal generating circuit (139) that generates a code signal is a power supply line.

(130) push button (A)
.

When one or both of (B) is pressed, in either case, the key code signal generating circuit (70) of the signal generating circuit (137) generates a start pulse of a key code signal (PI) unique to that transmitting unit. occur following. By sending this key code signal (Pi).

The key code signal generation circuit (70) generates an activation signal (C) for the operation code signal generation circuit (71). The operation code signal generation circuit (71) forms an operation code signal (P2) according to the activation signal (C) and the contents of the combination of push buttons (A) and (B) closing signals (a) and (b). .

For example, the closing signal (a) causes the driver's side door to open, the closing signal (b) causes the passenger side door to open, and the signal (a).

If (b) is present at the same time, an operation signal is generated to operate the trunk. These start pulses, key code signals, and operation code signals are used in or games)
(72) and is applied as a series of pulse signal trains (P3) to output circuits (74) and (75). Output circuit (
74) and (75) are infrared light emitting elements (13), respectively.
2) and an amplifying means for generating sufficient power to drive the monitor light emitting element (133). In this way, according to the operation of the push buttons (A) and (B), an optical signal (infrared ray) carrying a predetermined code signal is transmitted to the infrared light emitting element (
132), and this code signal can be visually confirmed by a monitor light emitting element (133).

FIG. 31 is an electrical system diagram of the reception control unit (150) which receives the code signal of such a transmission unit (130) on the vehicle side and performs predetermined judgment and control.

According to this receiving control unit (150), the infrared light emitting element (151) on the driver's seat side or the infrared receiving element (152) on the passenger seat side receives the optical signal from the aforementioned transmitting unit (130) and immediately receives an electric signal. After converting into a signal, an amplifier circuit (153) is placed at one location from each part of the car.

(154). This electrical signal includes the aforementioned key code signal and operation code signal, and the key code unique to the vehicle stored in the memory (158) matches this key code in the transmitting unit (130). The key code signal determining circuit (157) determines whether or not this is the case. If they do not match, the operation code will not be accepted and the seven door or trunk cutout units will not operate. If they match, the input location determination circuit (155), the operation signal determination circuit (159), and the Door lock sensor (1 [11).

An output determination circuit (160) comprehensively determines the output logic of (1B2), and an actuator that opens and locks a predetermined door or trunk is driven via an output circuit (183).

(Problems to be Solved by the Invention) This type of electronic key system generally only unlocks and unlocks doors, whereas conventional mechanical keys are used to unlock and unlock trunks, glove boxes, etc. It was extremely inconvenient compared to being able to do it. Furthermore, even with the recent technology mentioned above, it is only possible to unlock and lock another part in addition to the door, and the configuration is complicated, such as requiring multiple push buttons on the transmitting unit. It was. In other words, it can be said that, in general, conventional electronic key systems for vehicles have been less convenient than conventional mechanical keys.

Therefore, the present invention has been made based on the above-mentioned circumstances, and an object of the present invention is to provide a vehicle electronic key system with a simple configuration that has greater applicability than mechanical keys, especially applicability in the interior of a vehicle. do.

In particular, it is an object of the present invention to provide a vehicle electronic key system with a simple configuration that can increase operating functions without making the unit complicated or large, such as by increasing the number of operating buttons on the transmitting unit. .

(Means and effects for solving the problem) In order to achieve this object, according to the present invention, the operation code signal sent out by the transmitting unit can be changed by changing the length of time the operation button is operated. . With such a configuration, the operating functions can be increased without complicating the configuration of the unit, such as by increasing the number of operation buttons on the transmitting unit.

For example, a vehicle electronic key system according to an embodiment of the present invention includes a transmitting unit (1) that transmits a specific key code signal by operating a switch, and a transmitting unit (1) that transmits a specific key code signal by operating a switch.
and a reception control unit (2) that drives a desired drive target only when the key code sent in (1) matches a vehicle-specific key code, and the transmitting unit (2).
) includes a key code signal generating means (370) that generates a key code signal in response to the switch operation, an operation code signal generating means (371) that generates an operation code signal that instructs the controlled object to perform a requested operation; a timer (373) that monitors the operation time of the switch and controls the number of output pulses of the operation code signal generation means; and at least the key code signal and the operation code signal that are outputs of the key code signal generation means (370). Generating means (371
) to convert the operation code signal output from the
electricity for operating at least the key code signal generating means (370), the operation code signal generating means (371), the timer (373), and the photoelectric converting means (32). The receiving control unit (2) receives an optical signal given by the first photoelectric conversion means (32) of the transmitting unit (1) and controls the vehicle. A plurality of light receiving means (21
~25), a light guide means (4) for guiding the optical signal received by each of the light receiving means (21 to 25) to at least one location in the vehicle, and a light signal supplied by the light guide means (4). a second photoelectric conversion means (51) for converting the optical signal into an electrical signal; a memory (50?) storing the key code unique to the occupied vehicle; The key code and the transmitting unit (1) send out the light receiving means (21 to 25) and the light transmitting means (4).
), and key code signal generating means (50B) for determining whether or not the key code signal obtained through the second photoelectric conversion means (51) match, and the transmitting unit (1
) sends out the light receiving means (2) together with the key code signal.
1 to 25), an operation code signal determining means (508) for determining the content of the operation code given through the photoconduction means (4) and the second photoelectric conversion means (51);
The apparatus further includes an output driving means (540) for specifying a driving object to be driven among the driving objects based on the operation code signal.

Further, for example, according to the vehicle electronic key system according to the embodiment of the present invention, the operation code signal generating means (37
1), the number of generated pulses can be changed depending on whether or not the switch operation exceeds the set time of the timer (373).

Furthermore, for example, according to the vehicle electronic key system according to the embodiment of the present invention, the transmitting unit (1) is configured to sequentially transmit the key code signal and the operation code signal as a series of pulse trains.

Furthermore, for example, according to the vehicle electronic key system according to the embodiment of the present invention, the first
photoelectric conversion means (32) and the reception control unit (2
)'s second photoelectric conversion means (5 is a conversion means that converts an electrical signal into an infrared or visible light optical signal, and converts an infrared or visible light optical signal into an electrical signal, respectively).

Furthermore, for example, according to the vehicle electronic key system according to the embodiment of the present invention, the reception control unit 7. +(2
) is further provided with acoustic display means (587, 568, 575) capable of audibly indicating the type of control object to be operated by operating a switch of the transmitting unit (1). In this case, the acoustic display means includes pitch, pitch, sound quality,
The type of control target can be indicated by either a combination of a continuous sound and a single sound, or a combination of a continuous sound and an intermittent sound, or the like.

Furthermore, for example, according to the vehicle electronic key system according to the embodiment of the present invention, the light receiving means (21 to 25) of the reception control unit are provided in the door, trunk, and glove box of the vehicle. , depending on the length of the operation of the push button (31) of the transmitting unit (1),
Unlocking the door, unlocking the trunk, and unlocking the door
- It is possible to selectively unlock and lock the box.

Furthermore, for example, according to the vehicle electronic key system according to the embodiment of the present invention, it is desirable that the light transmission means (4) of the reception control unit (2) be an optical fiber.

(Embodiments of the Invention) The present invention will be described in detail below with reference to the accompanying drawings. Note that the same reference numerals in each figure indicate similar objects.

FIG. 1 is a system diagram showing the overall configuration of a vehicle electronic key system according to an embodiment of the present invention, and FIG. 2 is a mounting diagram showing an example of the electronic key system installed in a vehicle.

In FIG. 1, (, a) shows a transmitting unit (1) that transmits a specific key code signal by operating a switch. For example, the driver of the car carries this transmitting unit (1). In addition, (b) in the figure shows a reception control unit (hereinafter referred to as "load J") which receives an output signal from a transmission unit and drives a desired drive object (hereinafter referred to as "load J") only when the code matches the key code unique to the vehicle concerned. 2)
The main/control circuit (5) that performs the main arithmetic control of this unit (2) is located inside the dash board (2) in Figure 2.
0). Furthermore, the same figure (C) shows the operation panel (10) for performing various operations inside the car of the reception control unit y) (2), which is similar to the dash board or instrument panel in Figure 2. Nearby place! ? (
21).

Hereinafter, (1) the transmitting unit, (2) the receiving control unit, (2) and (3) the operation panel will be sequentially explained with reference to these drawings and the drawings from FIG. 3 onwards.

1. Ishneet FIG. 3 is an external view of a transmitting unit according to an embodiment of the present invention, and FIG. 4 is an electrical system diagram thereof. In both figures, (
30) is the casing of the transmitting unit, (31) is the operation push button for instructing the vehicle to perform a desired operation, (32) is the casing of the transmitting unit;
) is the first one that generates an optical signal carrying data for operation.
(33) is a monitoring light emitting element for monitoring the operating state of this transmitting unit, (34) is a DC power source that is a rechargeable secondary battery, (35) is a Diode for blocking current reverse flow, (3B)
(37) is a switch circuit that generates the operation signal (a) by the push button (31); (37) is a signal generation circuit that generates various signals necessary to achieve the object of the present invention;
) is a solar cell for charging the power battery (34). As is clear from Fig. 4, the signal generation circuit (3
7) Ha.

Key code signal generation circuit (370), operation code signal generation circuit (371), main/sub code signal generation circuit (37)
2) , timer circuit (373), OR gate (37
4), two output circuits (375) and (37B), and a power supply voltage detection circuit (37?). These will be explained in detail below.

The key code signal generation circuit (37) has a push button (31).
) is pressed and the contact (31) of the switch circuit (36) closes, causing a switch operation signal (a) to generate a key code signal (Pl) unique to the transmitting unit. This key code signal (PI) is, for example, a 16-bit code signal, and as shown in FIG.
Generate one or two pulses per meter of 1iJ (TK). Here, for example, if there is one pulse, the code is "0".
and the case of two pulses is assigned to code rlJ. Therefore, the code in Figure 5 is sequentially rl1 from the left.
According to this key code signal generation circuit (370), such a 16-bit key code signal is sent out once or several times, and depending on the number of times it is sent out, the key code signal generation circuit (370) Load is determined. The number of times of sending is determined by the suppression time of the push button (31) and the timer (37) described later.
It is determined by the output (d) of 3). Of course, the method for determining such a code and the total number of bits may be arbitrary.

The operation code signal generation circuit (371) generates an operation code (P2) that instructs the contents of the operation required of the load.

This operation code signal (P2) is activated by an end signal (m) indicating that the key code signal generation circuit (370) has finished sending out the key code signal (Pl), and is composed of, for example, an evidence signal. . This operation code signal (P2
) is the same as the key code signal (Pi) mentioned above.For example, as shown in FIG.
and the case of two pulses is assigned to code rlJ. Output (P2) of operation code signal generation circuit (371)
) is the output (d) of the timer circuit (373), which will be described later;
uJ is controlled, for example, output (d) is logic rQJ (7)
When +fP2=O (FIG. 6(A)), when the output (d) is logic rlJ, P2=1 (FIG. 6(A)).

The main/sub code signal generation circuit (372) generates a main/sub code signal (P3) indicating whether the transmitting unit (1) is a main unit or a sub unit.

For example, the main unit can unlock all locks and operate the panel keys, while the sub unit can only open and lock doors and operate the operation panel. Make it possible to perform the following operations. Therefore, the main/sub code signal (P3) is unique to that transmitting unit. This main/sub code signal (P3
) is a termination signal (n) indicating that the operation code signal generation circuit (371) has finished sending out the operation code signal (P2).
) and consists of a 1-bit signal, for example.

This main/sub code signal (P3) is exactly the same as the aforementioned operation code signal (P2). For example, as shown in FIG. 7, the case of one pulse is assigned to the code "O", and
cases are assigned to code rl+ so that code rQJ is the sub-code and code rlJ is the main code.

As can be seen from the above, each signal generation circuit (370).

(371), (372) each output code signal (Pi
), (P2), (P3) are or gates (374)
, output circuit (375), and infrared light emitting element (32)
), and therefore the output transmission code (PO) of (1) is as shown in FIG. In addition, each such circuit (370), (
371) and (372) are of the same type, and each signal (a) and (d) is a code stored in the memory.

(m), (n), etc. can be configured.

The timer circuit (373) starts counting when the contact of the push button (31) is closed, and when a certain period of time (TO) elapses in this closed state, the output level (d) is set to rQ.
This converts J to "1". Therefore, according to the embodiment of the present invention, when the duration (T) of the operation signal (a) is shorter than the set time (TO) of the timer circuit (373), the output d=0, and the operation signal -( If the duration (T) of a) is longer than the set time (TO) of the timer circuit (373), the output d=1.

Figure 9 illustrates the above situation, where rm (TI) at the first push button operation is the timer setting time (TO).
The second push button operation time (T2) is shorter than the timer setting time (TO). According to this example, the key code signal generation circuit (371) is
First, the key code signal (Pl) is generated by the generation of the operation signal (a), and when the timer circuit output (d) is converted to logic rlJ, the second key code signal (PI) is generated by the signal (d). occurs. Therefore, as shown in the same figure (d), the operation code signal (P2) is code r
OJ, the second time is the code "1".

In the above explanation, each of the signals (a) and (d) was explained as a set signal for generating a code signal, but the signal (a) is a start signal and the signal (d) is a number command. It is also possible to access memory as a signal.

The power supply voltage detection circuit (377) is a kind of comparison circuit,
Compare the voltage of the battery (34) with a predetermined reference value,
Alarm signal when the voltage falls below a certain voltage -) (e)
is generated. This alarm signal (e) can cause, for example, the output circuit (37B) to be inactive, so that the monitor light emitting element (33) will not light up even if the push button (31) is operated.

Note that the output circuits (375) and (37B) generally include an amplifier circuit that obtains power for driving the light emitting elements (32) and (33), respectively.

Furthermore, as is clear from the above explanation, the monitor light emitting element (33) lights up when the code signal (PO) is generated, indicating that the transmitting unit (1) is operating normally. It is something. Therefore, the user knows that key operation is possible when the monitor light emitting element (33) is lit, and is not possible when it is off. As mentioned above, the solar cell (38) is for charging the battery (34), and when there is external light, the battery (38) is always charged.
34), and the time required for battery replacement can be significantly extended compared to when a general primary battery is used. still,
This charging may be performed by an on-vehicle power supply when the transmission unit h is installed in a slot of an operation panel, which will be described later.

(2) Reception Control Unit The reception control unit (2) is as shown in FIG. 1O, and its outline is also shown in FIG. This reception control unit (2) mainly includes an input system (50), a code signal judgment system (5 (10)), a 6-problem prevention circuit (520),
and an output system (550). These will be explained in order below.

The input system (50) receives the optical code signal sent out by the above-mentioned transmitting unit (1) and guides it to the calculation system of the main controller (5). Therefore, the input system (50) according to this embodiment includes five light receiving lenses (21 to 25), optical fibers (4A to 4E) connected thereto, an infrared light receiving element (51), an amplifier circuit (52), and Waveform shaping circuit (52
).

Each light-receiving lens (21 to 25) is placed in the position indicated by the same number in Figure i2, (21) is the light-receiving lens in the operation panel (10) near the driver's seat, and (22) is on the driver's seat side. The light-receiving lens placed on the outside key part of the door (2
3) is a light-receiving lens placed on the outside key part of the passenger side door, (24) is a light-receiving lens placed on the key part of the glove box usually located in front of the passenger seat, and (25) is a light-receiving lens placed on the outside key part of the trunk door. This is a light-receiving lens placed in the key part. The light receiving lenses (21
~25), optical fibers (4A~4E) are installed using a well-known method.
One end of each is connected. Each optical fiber (4A
-4E) directs the optical code signal as it is to the main control device (5) placed in one place in the dash board.This optical code signal is transmitted via each optical fiber (4A-4E) to the main control device (5) ) are input to the corresponding infrared light receiving elements (51-51), which are second photoelectric conversion means, and are converted into electrical signals. The output electrical signals of the infrared receiving elements (51-51) are each amplified by an amplifier circuit (52-52) to the extent that subsequent processing is possible, and the pulse waveform shaping circuit (53) that has become dull or irregular during transmission is -53) to restore.

The code signal determination system (500) determines the contents of the key code signal, operation code signal, and main/sub code signal from the signal restored by the waveform shaping circuit (53-53). Therefore, the code signal determination system (500) according to this embodiment includes an OR gate (501), an AND gate (502), a vehicle speed sensor (503), a vehicle speed determination circuit (504), an AND gate (505), and a key code signal. Judgment circuit (50fl), key code memory (507), operation code signal judgment circuit (508)
, main/sub code signal determination circuit (509), and timer (
510). The code signal determination system (500) according to this embodiment also includes a mismatch counter (521).
), timer (522), and or gate (523)
) is added to the anti-theft circuit (520).

Code signal (Sl) arriving via the input system (50)
(substantially equal to the signal (PO) in FIG. 4) is one input of the AND gate (502) via the OR gate (501). This and gate (50,2
) is the output signal (
S2). The vehicle speed determination circuit (5 (14)) outputs a logic "l" when the vehicle is stopped and the vehicle speed is "0" based on the output signal (S) of the vehicle speed sensor (503) such as a generator, In other cases, that is, when the car is moving even slightly, it outputs a logic "0".Therefore, according to the embodiment of the invention described in terms of positive logic, the code signal (Sl) is , the car is stopped and the output signal 52 of the vehicle speed determination circuit (504) is 1.
Only when , each code signal judgment circuit (50B), (50
8), (509) 2 is input. In addition, as described later, the anti-theft circuit (520) of the anime game (505)
) is typically a logic rlJ, so the code signal (Sl) typically passes through the AND gate (505).

The key code signal determination circuit (50B) is connected to the transmitting unit (
1) Key code signal (Prito reception control unit (2)
It is determined whether the key code stored in the key code memory (50?) matches the key code stored in the key code memory (50?). For example, this key code signal determination circuit (5013) is a counter for detecting the first 16 bits of a series of code signals (Sl) (generally, a start pulse for signal detection is added at the beginning). , a register to store this, the contents of this register and key code memory (50
7) and can be configured to include a flag register or the like to indicate whether or not they match. Further, this key code signal determination circuit (50B) outputs a -negative signal (p) when both key codes match, and outputs a mismatch signal (q) when they do not match. - The negative signal (p) serves as an activation signal for the operation code signal determination circuit (508).

The anti-theft circuit (520) activated by the discrepancy signal (q) starts a counter (520) every time the discrepancy signal (q) occurs.
Count up the contents of 21) by 1. For example, when the count value reaches 10, the output signal (g) is set to logic "1".The counter (521) has a reset input (i), and the key code signal determination circuit (50
B) forms a negative signal (p), or when the output (h) of a timer (522) to be described later becomes logic rlJ, the counter (521
) to reset. When such a counter (521) finishes counting and an output signal (g) of logic rlJ is generated, a timer (522) is started and outputs the output (h) of this timer (522), which is usually logic rlJ, for a certain period of time. (For example, 1 minute) Set to logic "O". As a result, the AND gate (5
One input of 05) becomes rQJ for a certain period of time, and the passage of the code signal (Sl) is blocked.

According to such theft prevention circuit (520), if a key code other than the key code unique to the vehicle is entered 10 times in a row, the key code signal will not be judged for one minute, and the key code will not be detected until the key code is discovered. This takes a considerable amount of time, making it extremely difficult to prevent automobile theft.

The operation code signal determination circuit (508) determines whether the content of the operation code is "1" or rQJ, and performs this in each output determination circuit (541), (542), (544), (54), which will be described later.
5). This operation code signal determination circuit (508) is activated by, for example, a -negative signal (p), and is activated by a -negative signal (p).
It can be constructed by combining a level determination circuit with a tire that operates only while the 7th bit signal is present. When this timer finishes counting, the operation code signal determination circuit (50B) sends out a termination signal (r). This end signal (r) is transmitted to the main/sub code signal determination circuit (509
) is the activation signal.

The main/sub code signal determination circuit (509) determines whether the content of the main/sub code is rlJ or "0". If this is "1", it is the main code, so all output judgment circuits (
541) , (542) , (544), (545)
be operational. On the other hand, if it is "O", it is a sub code, so the trunk and glove box 7
The operation knob output judgment circuit (541) and the glove box output judgment circuit (
544) and the trunk output determination circuit (545). This main/sub code signal determination circuit (509) is activated by, for example, an end signal (q),
It can be constructed by combining a level determination circuit with a timer that operates only while the 18th bit signal is present. When this timer finishes counting, the main/sub code signal determination circuit (509) sends out a code determination end signal (1). This code judgment end signal (1) is sent by the timer (
Each output judgment circuit (51G) is delayed for a certain period of time by
41), (542).

(544), (545).

Next, the output system (540) will be explained. Output system (54
0) is based on each output command signal (u), (ma), (W) of the code signal judgment system (500), and which output judgment circuit (541), (542), (5
44) and (545), and performs the desired operation. It should be noted that the steering lock output determination circuit (54G) cooperates with the operation panel output determination circuit (541), as will be described later, and consists of some other output determination circuits. Therefore, the output system (540) according to this embodiment includes an input location determination circuit (530) that determines which output determination circuit is to be activated based on the content of the code signal (Sl), and an operation panel (10) that will be described later. An operation panel output determination circuit (541) that responds to the operating state, and a door output determination circuit (542) that determines and controls the unlocked/unlocked state of the door.
), a glove box output determination circuit (544) that determines and controls the unlocked/locked state of the glove box; () a door output determination circuit (544) that determines and controls the unlocked/locked state of the rank;
545) It also includes a steering lock output determination circuit (54B) that determines and controls the unlocked/unlocked state of the steering wheel.

The input location determination circuit (530) is for identifying the control target as described above and for not performing an output operation when inputs are received from two or more locations. Therefore, this input location determination circuit (530)
The presence or absence of a code signal from 25) is determined at each input terminal (kl~5), and the output terminal (fLl-45)
determines the output logic of and sends the logic to the output judgment circuit to be driven.
It can be configured as a logic circuit (for example, ROM) that sends out a command signal of "1". The configuration of such a logic circuit is, for example, as shown in FIG. kl~5) becomes (01000), and at this time, the output logic (intersection 1-45) is configured to become (01000). Therefore, only the door output determination circuit (542) to which the output logic rlJ is input operates. Other output determination circuits also operate in the same manner. Furthermore, for logic inputs other than those shown in FIG. 11, the input location determination circuit (530) outputs (fL1
~! L5) is (OooOO), and no output determination circuit operates.

The operation panel output circuit (541) and the steering lock output determination circuit (54B) will be explained together with the operation of the operation panel, which will be described later.

The door output determination circuit (541) receives the output signal (U) of the operation code signal determination circuit (50B), the code signal determination system (
500) judgment end signal (su), input location judgment circuit (500)
30) output signal (statement 2) or (transmission 3), output signal (DLI) of the door lock sensor (580) on the driver's seat side, and output signal (DL2) of the door lock sensor (5El l) on the passenger seat side Based on this, a predetermined drive circuit (582 to 565) is operated, and the corresponding actuator (
58B) or (568) and the buzzer (5B?) or (5139).

Here, the output signal (u) of the operation code signal determination circuit (50B) is an operation command to the driver's side door when the logic is rQJ, and an operation command to the passenger side door when the logic is rlJ. do. In addition, each door lock sensor (580)
, (581) output signal (DLI).

(DL2) detects that the logic "O" is unlocked, and the logic "O" detects the unlocked state.
1" has detected the locked state.

In order to execute the above operations, the door output determination circuit (542
) can be configured as a logic circuit (for example, ROM) as shown by 1, for example, 12th rgJ.

That is, for example, as shown in the logical sequence (Ill),
When the driver's side and passenger's side doors are unlocked, the door lock sensors (580) and (581) both set the logic of the output signals (DL1) and (DL2) to "0".
In this state, the light receiving lens (22) on the driver's seat side
receives the code signal, and the operation code signal (u) is "0"
(immediately after the push button (31) is suppressed), the door output determination circuit (541) operates the driver's side door lock actuator (588) via the drive lJJ circuit (582) to lock the door. . At this time, a door output determination circuit (54) is used to indicate that the door is locked.
2) At the same time, the drive circuit (563) is activated to sound a buzzer (5B?).The sound of the buzzer (5G?) is differentiated to distinguish between locking and unlocking.1For example, as shown in the figure. The lock will ring once when the lock is locked and twice when the lock is unlocked. In this case, the pitch, pitch, and tone quality may be changed for locking/unlocking, one may be a long sound, the other may be a short sound, or a continuous sound and an intermittent sound may be combined.

From the state explained above, when the push button (31) is continued to be pressed and the operation code signal (u) changes to logic rlJ, the passenger door is locked as shown in the same figure (key 7). The door output determination circuit (542) is activated. In this case, it will be easily understood that the drive circuits (584) and (565) are activated and the actuator (588) and buzzer (589) are energized. One or both of the seat-side door and the passenger-side door are unlocked or locked. Of course, the same holds true even if the number of doors is further increased.

The glove box output determination circuit (504) and trunk output determination circuit (545) can also have similar configurations. That is, the glove box output determination circuit (544) detects the door lock sensor (560), (
Glove box lock sensor (561) instead of glove box lock sensor (561)
71), and operates the drive circuits (572) and (573) according to the logic configuration shown in FIG. 13, energizes the actuator (574) and the buzzer (575), and opens and locks the glove box. In addition, the trunk output determination circuit (5
45) is a door lock sensor (580).

Trunk lock sensor (581) instead of (581)
The drive circuit (5) has a logic configuration shown in FIG.
82) and (583), and actuate the actuator (
5B4) to open and lock the trunk.

3 The panel operation panel (10) allows the mechanical key to perform functions such as unlocking the steering wheel, operating electrical system switches, and operating the ignition switch by inserting the aforementioned transmitter 22) (1) into the slot. It is intended to provide the same or greater functionality.

The appearance of the operation panel (10) is also shown in Figure 1.
5 and 16 show the details, i.e.
The figure is a front view of the operation panel (10).

Figure 16 (a), (b), and (c) are the lines X-X1i, Y-Y, and 2-2-c in Figure 15, respectively.
R side rlJ theal.

The panel surface (150) of the operation panel (10) includes a thrower (151) for inserting the transmitting unit (1), an eject lever (152) for removing the inserted and fixed transmitting unit (1), and an engine starting lever. a start button (153) for cranking the engine; an ignition button (154) for simultaneously turning on an ignition circuit (not shown) for igniting the engine and an accessory circuit for operating an electrical system such as a radio; , an accessory button that turns only the accessory circuit on, an off button that turns both the ignition circuit and accessory circuit off, and the glove box, trunk,
and a glove box button (157) and ) rank button (15B) for unlocking and locking the doors.
), and door buttons (159) are arranged.

In addition, the buttons (157 to 158) have light emitting diodes L225), (230), (23) that indicate the operation status.
2) is provided.

The insertion slot (151) of (1) has a complementary shape to the transmitting unit (1), and the transmitting unit (1) is placed in such a state that the operation button (31) is located on the left side of the drawing. , the infrared light emitting element (32) is inserted into the slot (151) from one side. Once this insertion is complete,
The light emitting element (32) of the transmitting unit (1) faces a light receiving lens (21) provided at the rear of the operation panel. This light-receiving lens (21) constitutes a light-receiving means together with the optical fiber (4A) joined to it as described above,
The seed control device (of the control unit (2)) receives the optical code signal.
5).

The eject lever (152) has an L-shaped cross section,
A rotation shaft (152a) is provided on the long side of the L-shaped member, and this lever (152) is attached to this shaft (152a).
It can be rotated with. Further, a long hole (152b) is formed near the corner of the L-shaped member, into which a plunger (1130) to be described next is inserted. L
A slider pin (
152e) is in contact with one end. This slider pier
(152e) is a substantially U-shaped member with a short negative side, as shown in FIG. 16(b). Further, this slider pin (152e) is biased from above to below by a suppression spring (152F). Therefore, when the transmitting unit (1) is inserted into the slot (151) against the spring (189) at the rear of the operation panel,
Transmission unit) Four parts (100) preformed in (1)
(FIG. 15), the tip of the slider pin (152e) engages, and the transmitting unit (1) is primarily fixed.

In this way, the set switch (551) is installed inside the operation panel so that the operation button (31) is pressed at the position where the primary fixation by the eject lever (152) is completed.
) is provided. The output of this set switch (551) is input to an operation panel output determination circuit (541) as shown in FIG. Set switch (55
1) is a protrusion member that is biased toward the operation button (31) by a spring (551b) disposed in the inner recess. In addition, contacts (551
c) are fixed and cooperate with contacts (551d) fixed elsewhere in the panel to form a switch. That is, when the transmitting unit (1) is inserted, the operation button (31) comes into contact with the protrusion member (551a) and the operation button (31) is suppressed, and the protrusion member (551a) is suppressed.
a) Two contacts (551c) are also pressed against a spring (15lb).

(551d) touch each other. In this way, the set switch (551) becomes on state (theoretical "l"),
The infrared light emitting element (32) is caused to emit light. This infrared ray is transmitted through the optical fiber (4A) to the operation panel output judgment circuit (5A).
41), but also the plunger (180)
It also drives. That is, when the set switch (551) is turned on, the solenoid (183) is energized to attract the magnetic core (181) fixed to the plunger (180) against the spring (1B2). For this reason, as shown, the plunger (1130) is connected to the lever (
152) into the elongated hole (152b) and send the transmitting unit (
As is clear from the above description, when the eject lever (152) is pushed from below, the slider pin (152e) is fixed by the action of the elongated hole (152b).
increases slightly. Therefore, the sending unit (1) is pushed slightly forward by the spring ([19), the operation button (31) and the set switch (551) are released from contact, and the switch (551) is turned off. . As a result, the solenoid (183) is deenergized and the plunger (180) is moved by the action of the spring (1B2).
is pulled out from the elongated hole (152b). Therefore, the engagement of the slider bin (152e) is completely released and the transmitting unit (1) can be taken out from the operation panel (lO) by the spring (169).

Next, in #5 the work panel (10) and the operation panel (lO)
The configuration and operation of the control system of the main control device (5) related to this will be explained with reference to FIG. 10 and FIGS. 17 to 20.

First, the aforementioned operation panel output determination circuit (541) receives a signal (U) from the code signal determination system (500).

(Ma), (w) and the output signal (Jll) of the input location determination circuit (530), the set switch (55)
The output signals of 1) are input, and based on these signals it is determined whether each operation button on the operation panel (10) can be operated, and the panel operation is controlled via the output circuits (552) and (553). A command signal ((Ill:
1), (002) are sent. Signal (CC
I), (CC2).

Code signal judgment end signal (from logic "0" to logic r
It is output when it is converted to lJ. Furthermore, when the signals (CCI) and (CG2) are both logic "1", the panel operation control unit (554) enables button operation on the operation panel, and when CC1=l and CC2=O, the trunk and Buttons other than the glove box can be operated easily.

Therefore, this operation panel output determination circuit (541)
A logical configuration as shown in FIG. 17 can be used. For example, as shown by the logical column (#1) in the drawing, when the main transmitting unit (1) is inserted and set in the slot (151) of the operation panel (10) as described above, the set switch (
551) is in the on state of logic rlJ. At this time, the reception control unit (2) controls the light receiving means (2) at the rear of the operation panel.
1) and (4A), the operation panel output judgment circuit (541) receives the optical code signal of operation code "O" and main code rlJ, and outputs the key code judgment completion output signal (CCI) as logic "1", main/sub. Code signal judgment output signal is logic “1”
Output as . Furthermore, as shown by the logic column (113), when this transmitting unit (RI) is set on the operation panel (lO), the set switch (551) remains pressed, so the operation code is converted to logic "l". (of course,
At this time, the main/sub code remains "1"). That is, once the transmitting unit (1) is set on the operation panel (10), the output (
CCI) and (C:C2) do not change.

In addition, as shown in the logical column (heat 2), the sub transmitting unit (
1) on the operation panel, the set switch (5)
51) is turned off, and receives an operation code "O" and a main/sub code "0" from the operation panel section. Therefore, the outputs CCl-1 and CC2=O. If this state continues, the operation code changes to logic rlJ, and the output signal of the operation panel output determination circuit (541) becomes CC1=1, as shown by the logic string (C4), and as in the case of (+13) described above. ．． C.C.
It is fixed at 2=O.

As described above, when either the main or sub transmitting unit is set, the output determination circuit (541) holds the state (113) or (114), and in (119) the sect switch changes to the logic "Oj This state is maintained until the transmitter outputs yL, that is, the transmitting unit is removed.

After the transmitting unit (1) is removed, the state of (Kan 9) is of course maintained.

If the transmitting unit is not set on the operation panel and an optical signal is input from the operation panel, CCI=O, CC2= as shown in the logical sequence (clouds 5 to 118).
It becomes 0. In other words, it is determined that the optical signal in this case is not a legitimate signal from the transmitting unit, and the panel operation control section (
554) can be operated.

FIG. 18 shows such an operation panel output determination circuit (541).
), and some parts overlap with FIG. 1 or FIG. 10. The configuration of the operation panel and the steering lock will be described with reference to this drawing.

In FIG. 18, the switch circuit (2θl) outputs an output command signal CC1=1 indicating that the operation panel output determination circuit (541) determines that the key code signals match.
It is turned on by being sent,
All operation buttons (153 to 1) on the operation panel (IO)
59). The switch circuit (202) is a circuit that is turned on and off by the command signal (CG2) that outputs different main and sub code signals from the operation panel output determination circuit (541), and is in the on state depending on the main code rlJ and the sub code "0". This is to prevent the glove box button (157) and trunk button (158) from operating in the sub transmitting unit. However, in the following description, it is assumed that all operation buttons on the operation panel can be operated by the main transmitting unit. The switch circuit (203) is connected to the vehicle speed calculation circuit (50
The start switch (1) is driven by the output signal of the start switch (1).
53) and switches other than the glove box button (157) (154), (155), (15B), (15B
).

(159) is operable only when the vehicle is stopped. The switch circuit (204) is driven by the output of the engine rotation calculation circuit (280) and the steering unlock condition, and enables operation of the start switch (153) to perform cranking, which will be described later. - When you operate the start button (153), the timer (20
5) starts, the Nant gate (20B) and the control circuit (
210) and the output circuit (220), the ignition circuit (221) and starter motor (222) are driven for the time set by the timer (205) (for example, 5 seconds), and at this time, the accessory circuit is not driven and cranking is performed. enter the state. When the engine is started by this cranking, based on the output of the engine rotation calculation circuit (280),
Since one input of the computer game (20fl) becomes "0", the starter motor (222) is stopped in operation F via the control circuit (210) and the output circuit (220). The accessory circuit (223) also controls the control circuit (210).
). If the engine does not start, the ignition circuit and accessory circuit are restored and wait until the next operation of the start button (153). The above operation is the same even when the engine is stopped while the vehicle is running and the engine is restarted while the vehicle is running.

When the engine is started by operating the start button (153) as described above and the car is in a running state, the output of the vehicle speed calculation circuit (504) becomes logic "1", so the switch circuit (203) is turned off. Become. Therefore, the ignition, accessory, off, trunk, and door button operation inputs are blocked by the switch circuit (203), and stopping the engine and opening/closing the trunk and door are prohibited. In other words, if the engine stops while driving, it may be dangerous with recent power-assisted operation mechanisms (brakes, clutches, accelerators, etc.). This danger is avoided by making it impossible. Furthermore, it is not necessary to open or close the doors or trunk while driving, and it is also dangerous, so opening and closing them is also prohibited. At this time, the signal from the glove box button (157) is transmitted to the switch circuit (203).
), and the switch circuits (201) and (202)
It can be input to the control circuit (209) via. Therefore, the gloveponx can be unlocked and locked regardless of the driving state by the operation of the output circuit (220) and the actuator (574). Note that when the glove box is unlocked, the light emitting diode (230) lights up.

Accessory button (155) and ignition button (
154) are switch circuits (201), (203)
The inputs (R1) and (R
2). The two outputs (R3) and (R4) of the latch circuit (20?) are input (G) to the control circuit (210) via the NOR gate (208), and one output (R3) is directly connected to the control circuit (210). Input (F) of control circuit (210)
), and the off button (15El) is also a switch circuit (201).

(203) is connected to the clear input (C:L) of the latch circuit (207). Such a latch circuit (20?) is such that once the ignition button (154) or accessory button (155) is operated, the ignition circuit (221) remains in place until the off button (15B) is operated, without having to keep pressing the button. ) or the accessory circuit (223) is kept on. The ignition button (154) simultaneously turns on the ignition circuit (221) and the 7 accessory circuit (223) by operating the button after the engine is stopped. The accessory button (155) turns on the accessory circuit (223) on the condition that the engine is stopped.
) is turned on.

The glove box button (157), trunk button (15B), and door button (159) are all operated by their respective actuators (574) and (584).
, (588), but the trunk button (158) only has the unlocking function, similar to the mechanical key. In addition, each button (157 to 1
59) is a light emitting diode (230) that indicates the unlocked state;
(225) and (232).

As described above, the load is driven by operating each of the operation buttons on the operation panel (10) through the control circuit (2).
10). The operational logic of this control circuit (210) is shown in FIG. 19 in terms of the relationship among button operations, input/output logic, and load operations. Note that the "-" mark indicates that the input is unrelated to the output.

Steering lock output determination circuit (548) (first
0) is included in a part of the control circuit (209), the transmitting unit is set on the operation panel (10), and the output signal (CC
It operates on the precondition that I) is logic "1". In addition, other condition signals are provided by the engine rotation calculation circuit (
280), the respective position switches (211) and (21) of the steering lock and unlocker.
2) (In Figure 10, the position switch (581
) is the output signal of ). The output of the engine rotation calculation circuit (280), together with the output signal of the steering unlock/position switch (212), drives the switch circuit (204) via the steering wheel (281). Based on such a signal, the operation of the steering lock actuator (593) is controlled by the input (I4~!?) and output (04) of the control circuit (209).
, (05), and (010) are shown in FIG.

For example, automatic with steering in lock state! When the transmitting unit (1) is set on the operation panel (10) with F, the aforementioned set switch (551) activates the operation panel output judgment circuit (541) (Fig. 10), and the control circuit (209) also operates. The input (I5) is set to logic "1". As a result, if the transmitting unit (1) is a regular main unit, CC1=1, and the input (I4) of the control circuit (209) becomes logic rlJ. Furthermore, as mentioned above, since the steering wheel is locked, the position switch (211) is closed, and the input (
I8) is set to logic "1". Therefore, as shown by the logic string ("l") in FIG. ) to prompt the steering wheel to unlock, the operation when different types of transmitting units are set is the logical sequence (
As shown in cloud 4).

By the way, in general, when the steering wheel is locked using a single mechanical key, the lock pin and the recessed portion of the steering shaft fit into each other by turning the steering wheel a predetermined number of flrl after the engine is stopped, resulting in a locked state. When unlocking in this case, the lock pin and the steering shaft receive a frictional force in the direction of rotation of the steering wheel, and therefore the lock cannot be unlocked (the key cannot be turned) unless the steering wheel is returned to the locked position. This situation is the same in the electronic key of this invention (in the case of Spirit 1.112), and the actuator (
593) operates in the unlocking direction, there may be cases where the lock cannot be opened with its own blade. In this case, the unlock signal is sent to the control circuit (209
), but the lock pin is not returning, and this is confirmed by the input (I7) and the alarm output (010) is set to logic "1". This causes a buzzer (233) to sound via the output circuit (220) to warn that the steering wheel has not been unlocked yet. The same applies when the lock pin does not operate due to an abnormality in the connection to the actuator (593).

In the above cases (11) and ('+2), the output logic of the AND gate (281) is "1", and the switch circuit (
204) is in the off state, so the start button (15
Even if 3) is pressed, no signal is input to the control circuit (210) and the engine does not start. Therefore, the danger of starting with the steering lock unlocked or incompletely unlocked can be avoided.

Similarly to the above, the logical column (Zeng 3) indicates the case of complete unlocking, and the logical column (Cloud 5) indicates the case of locking.

FIG. 21 and FIG. 28 collectively show all the above operations. 22 to 27 show the subroutine in FIG. 21. each subroutine
It is shown as sUBIJ etc.

This invention is not limited to the above embodiments and modifications, and various other embodiments and modifications are possible within the technical scope of this invention, and equivalent components may be replaced. It is clear to those skilled in the art that this is possible. For example, the reception control unit may be provided not at one location but at multiple locations for each function.

(Effects of the Invention) According to the present invention, as explained above, by making it possible to change the operation code signal sent by the transmitting unit depending on the length of operation time of the operation button, the unit can be Therefore, it is possible to obtain a vehicle electronic key system that can expand the operation function without changing the system and can selectively operate a plurality of control objects.

[Brief explanation of drawings]

FIG. 1 is an overall system diagram of a vehicle electronic key system according to an embodiment of the present invention, FIG. 2 is an implementation diagram of the vehicle electronic key system according to an embodiment of the present invention in an automobile, and FIG. 3 is a diagram of the vehicle electronic key system according to an embodiment of the present invention. FIG. 4 is an electrical system diagram of the transmitting unit of the vehicle electronic key system according to the embodiment of the present invention, and FIGS. 5 to 9 are An explanatory diagram of the operation of the transmission unit of the vehicle electronic key system according to the embodiment of the invention, FIG. 1θ is a system diagram of the reception control unit of the vehicle electronic key system according to the embodiment of the invention, FIGS. 11 to 14 15 and 16 are block diagrams or operation explanatory diagrams of the main parts of a reception control unit of a vehicle electronic key system according to an embodiment of the present invention, and FIGS. 15 and 16 are diagrams showing a reception control unit of a vehicle electronic key system according to an embodiment of this invention. Block diagram showing the structure of the operation panel of the control unit, 1st
FIG. 7 is an explanatory diagram of the operation panel of the vehicle electronic key system according to the embodiment of the present invention, and FIG. 18 is a system diagram showing the configuration of the operation panel control section of the vehicle electronic key system according to the embodiment of the present invention. , FIG. 19 and FIG. 20 are explanatory views of the operation panel control section of the vehicle electronic key system according to the embodiment of the present invention, and FIGS. 21 to 28 are diagrams showing the vehicle electronic key according to the embodiment of the present invention. A flowchart showing the overall operation of the system, and FIGS. 29 to 31 are explanatory diagrams of the conventional apparatus. In the drawings, (1) is a transmitting unit, (2) is a receiving control unit, (3) is a light receiving means, (4) is a light conducting means, and (5) is a receiving control unit.
) is the main controller, (9) is the controlled object, (10) is the operation panel, (31) is the operation button, (32) is the ml photoelectric conversion means, (33) is the monitor light emitting means, (34) is The power source (38) is a solar battery. (370) is a key code signal generating means, (371) is an operation code signal generating means, and (372) is a main/sub code signal generating means. (5H) is key code signal determination means, (507) is key code memory, (508) is operation code signal determination means, (509) is main/sub code signal determination means, (530) is input location determination means, (540) ') is the output system. Patent applicant: Honda Lock Co., Ltd. Agent
Patent Attorney, Part 2 1) Patent Attorney, Kuni Ohashi, Part 1, Patent Attorney, Udou Koyama, Part 1)
Shigehi Hek Spoon Mishishi Figure 15 ■ Figure 16 Figure 22 (SUB 1) Figure 23 (SUB 2) Procedure 7 Yama Seisho (self-proposal) March 18, 1986

Claims (8)

[Claims] (1) A transmitting unit that sends out a specific key code signal by operating a switch, and a receiving control unit that drives a desired drive target only when the key code sent by this sending unit matches a vehicle-specific key code. In the vehicle electronic key system, the transmission unit includes a key code signal generating means that generates a key code signal by operating the switch, and an operation code that generates an operation code signal that instructs the controlled object to perform a requested operation. a signal generating means, a timer for monitoring the operation time of the switch and controlling the number of output pulses of the operation code signal generating means, and generating at least the key code signal and the operation code signal which are outputs of the key code signal generating means. a first photoelectric conversion means for converting an operation code signal, which is an output of the means, into an optical signal; and electricity for operating at least the key code signal generation means, the operation code signal generation means, the timer, and the photoelectric conversion means. and a power supply that supplies energy, and the reception control unit is configured to control the first transmission unit of the transmission unit.
a plurality of light receiving means disposed at various locations in the vehicle for receiving optical signals provided by the photoelectric conversion means; and light conducting means for guiding the optical signals received by the respective light receiving means to at least one location within the vehicle. , a second photoelectric conversion means for converting the optical signal supplied by the photoconducting means into an electrical signal, a memory storing the key code unique to the vehicle, and the key code stored in the memory. key code signal determining means for determining whether or not the key code signal transmitted by the transmitting unit and obtained via the light receiving means, the photoconducting means, and the second photoelectric conversion means match; A transmitting unit sends out the key code signal together with the light receiving means, the photoelectric conversion means, and the second
an operation code signal determining means for determining the content of an operation code given through a photoelectric conversion means; and an output driving means for specifying a driving object to be driven among the driving objects based on the operation code signal. An electronic key system for vehicles that is characterized by: (2) In the system according to claim 1,
The electronic key system for a vehicle, wherein the operation code signal generating means varies the number of generated pulses depending on whether or not the switch operation exceeds a set time of the timer. (3) The system according to claim 1 or 2, wherein the transmitting unit sequentially transmits the key code signal and the operation code signal as a series of pulse trains. Electronic key system. (4) In the system according to any one of claims 1 to 3, the first photoelectric conversion means of the transmitting unit and the second photoelectric conversion means of the reception control unit each have an electric power An electronic key system for a vehicle, characterized in that it is a conversion means that converts a signal into an infrared or visible light optical signal, and converts an infrared or visible light optical signal into an electrical signal. (5) In the system according to any one of claims 1 to 4, the transmitting unit further includes acoustic display means capable of audibly indicating the type of control object to be operated by the switch operation. A vehicle electronic key system characterized by: (6) In the system according to claim 5,
The vehicle is characterized in that the acoustic display means indicates the type of object to be controlled by any one of pitch, pitch, sound quality, a combination of a continuous sound and a single sound, or a combination of a continuous sound and an intermittent sound. electronic key system. (7) In the system according to any one of claims 1 to 6, the light receiving means of the reception control unit is provided in a door, a trunk, and a glove box of the vehicle, and An electronic key system for a vehicle, characterized in that the doors are unlocked, the trunk is unlocked, and the glove box is unlocked and unlocked selectively depending on the length of a switch operation of the unit. (8) A vehicle electronic key system according to any one of claims 1 to 7, wherein the optical transmission means of the reception control unit is an optical fiber.