JPH08170462A - Locking device for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify electrical constitution without damaging functional safety operation. SOLUTION: The locking system has respective one door lock 5, a central locking device having electrical adjusting members arranged in response to one door lock to each door lock respectively and an operation control circuit 7 for operating and controlling the central locking device in each motor-vehicle door. The operation control circuit 7 has a bus system 9 for transmitting information. The bus system 9 is operated by circuit multiplexing system elements 11 housed in one adjusting member at every one respectively. Microcontrollers, motor drivers and control sensors housed in each adjusting member are encapsulated in the operation control circuit 7 regarding each motor-vehicle door lock. The circuit multiplexing system elements 11, the microcontrollers and the motor drivers are arranged on common circuit boards 15 housed in the adjusting members or the motor-vehicle door locks. The circuit board 15 is housed in a capsule for dustproof and moisture-proof treatment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a central locking device having one door lock for each automobile door and an electric adjusting member arranged so as to correspond to each door lock. A locking device for a motor vehicle having an operation control circuit for operating and controlling a central locking device that operates on operating information and receives monitoring information. The expression car door lock refers to the cover of the rear splash cover and the fuel filling port.
It also includes a flip cap. Automobile door locks have anti-theft devices as well as their usual functions such as locking and unlocking. The device, within the scope of the invention, is generally shown arranged according to a uniform principle. Various embodiments of locking devices for motor vehicles are known. This also applies to car door locks.

In the known locking device on which the invention is based, the operating control circuit for the individual operating control functions has a separate conductor leading from the individual vehicle door lock to the central part. Wiring or cables equipped with this "point-to-point connection"
The classical procedure, labeled bull-wired, not only requires a large number of conductors, but it is also known that for pre-attaching the conductors and connected components to the wiring harness. , Requires time-consuming installation work. On the other hand, modern electronics, also in the context of automobiles, makes it possible to simplify electrical circuits compared to circuits with classical wiring and cabling, circuit-multiplexing circuits and circuit-multiplexing. I know the system as well as the bus system (see German patent DE 3417956, DE 41 41 504). In this regard, the known treatment methods are, in the context of locking devices for motor vehicles,
It doesn't mean that you can use it as it is without hesitation.

[0003]

SUMMARY OF THE INVENTION The present invention provides a locking device for an electric vehicle, which has the structure described at the beginning and has the purpose described above at the beginning without impairing functional safety operation. It is based on a simplistic technical problem.

[0004]

The solution of this technical problem is the subject of claim 1, namely one door lock for each motor vehicle door and one for each individual door lock. Motor vehicle having a central locking device provided with an electric adjusting member arranged corresponding to one pad, and an operation control circuit for operating and controlling the central locking device, which operates according to operation information and receives monitoring information The locking device for a vehicle, further having the following features, that is, the operation control device has a bus system for transmitting information, and the bus system is
Acting with the line-multiplexing system elements housed in the individual adjustment members one by one, and for each vehicle door lock, a micro-controller, a module arranged in the circuit behind the line-multiplexing system element. -The motor actuator and the control sensor belong to the operation control circuit, and the circuit-multiplexing system element for each vehicle door lock, the microcontroller and the motor actuator are housed in the adjusting member. Are arranged on a common circuit board, and in that case, the circuit board is encapsulated to prevent dust and moisture.

Another solution of the above technical problem is the subject of claim 2, namely one door lock for each motor vehicle door and one for each individual door lock. A locking device for an automobile having a central locking device equipped with a servo motor, and an operation control circuit for operating and controlling the central locking device, which operates with operation information and receives monitoring information. In addition, the following features, namely that the operation control device has a bus system for transmitting information, and that the bus system operates with line multiplex system elements housed in a single pad in each adjusting member. , For each vehicle door lock, a micro controller, motor housed in an individual door lock, i.e., in the circuit, behind the line multiplex system element.
The motor control device and the control sensor belong to the operation control circuit, and the line-multiplexing system element for each vehicle door lock, the microcontroller and the motor exciter are housed in the vehicle door lock. On the common circuit board, in which case the circuit board is encapsulated for dust and moisture protection.

Within the scope of the invention, the expression busbar refers to connecting conductors for signals which describe information in digital technology. The mother line connects the individual components of the information processing system. Generally, there is a distinction between a data bus, an address bus and a control bus.
The data bus is used for exchanging data, such as measurement data. The address bus and control bus are used for transmission of control signals and ACK (normal response) signals. The bus bar (as opposed to the classical wiring or cable wiring in the form of the "point-to-point connection" mentioned at the beginning)
It is characterized in that all components are connected to the busbar. The conductors are generally bidirectional. This means that a signal can flow through the bus in multiple directions, and there can be multiple active elements on the bus, in which case each active element is one data communication. Means that you can open up.
The busbar system offers the advantage that the components can be elastically connected. The performance of the bus system is highly dependent on the data transmission rate. If more than one active element accesses the bus, the priority control must control this access. A bus system is a system of bus conductors, in which case these bus conductors are defined according to the number and function of the individual conductors. Interface for devices and parts to be connected
The condition depends on the definition of the bus system. A busbar is a single or multiple wire system of control conductors to which multiple devices or stations within the local network are connected. Message or control information is exchanged in a circuit multiplexing operation. In the case of line multiplexing operation, the input channels are sought after one after the other and are thus applied to the transmission channels in a time-sequential overlap. In the receiver, the same,
The scanning devices, which operate synchronously, must distribute the signals to their respective outputs. The line multiplexing circuit includes members for scanning the input channel and for concentrating the input channels. These are, for example, operated switches or modulators. In circuit multiplexing systems, the input channels are characterized by an address and can therefore be concentrated. Concentration consists of the additional integration of addressed signals of every input channel into the original signal concentrator. In the receiver, the address decoder selects signals belonging to itself,
Only the signal part corresponding to its own address is separated. Therefore, at the exit of the circuit multiplexing system, the input channel is reused.

According to the present invention, the treatment method known from the above-mentioned electronics greatly simplifies the locking device for automobiles, and as a result, it is possible to realize the electrical control and monitoring of the locking device with a small amount of wiring. It is based on the recognition that. This simplification is carried out according to the invention to the point where the circuit board can be stored in the adjusting member of the central locking device or in the vehicle door lock. In both cases, the circuit boards are simultaneously arranged in a protected manner. The adjusting member of the central locking device or the casing of the vehicle door lock can be implemented as a dustproof and moistureproof capsule at the same time, and to that extent fulfills a dual function. In the case of a motor vehicle, the locking device according to the invention may include commands such as locking, unlocking, additional anti-theft interlocking, cancellation of anti-theft interlocking, and possibly other commands, mechanical or electronic. Obviously, this is transmitted via a lock or switch. In particular, within the scope of the invention, there are numerous possibilities of forming and implementing further locking devices. According to an advantageous embodiment of the invention, the busbar system is designed as a single-wire busbar system with pulse-width-modulated bits operating digitally.

In another embodiment according to the invention, which can be incorporated in most motor vehicle locks, a line multiplexing system element is provided with three inputs (bus input, energy input).
Input section, ground input section), and according to the internal circuit of the vehicle door lock (for example, central interlocking switch, internal interlocking switch, lock operation switch, control sensor, etc.)
It is characterized by having a plurality of output units. Generally, eight output sections are sufficient, three for addresses and five for various other functions. In the case of the locking device according to the invention, the control sensor is preferably embodied as a non-contact actuating sensor, for example as a Hall sensor which operates according to the known Hall effect.

According to the invention, although the circuit board is housed in the adjusting member of a vehicle door lock or central locking device, it is desirable to additionally enclose the circuit board in a dustproof and moistureproof capsule. This is because the conductors are taken out in a correspondingly dustproof and moistureproof form.

"A structure having a closed casing" in which only the external operating lever, the internal operating adjusting bar, the internal safety adjusting bar and the wire terminal are led out from the casing.
The locking device with the vehicle door lock of the above embodiment is known. In the case of the embodiment according to claim 2, in the case of the locking device of the embodiment with such a closed casing, the circuit board encapsulated by the method described above is closed. It can be housed in a casing, which makes it even more secure (see DE 35 26 501).

The following will further describe the embodiments of the present invention with reference to the drawings.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The locking device shown in FIG. 1 is specified for an automobile. The automobile includes a driver seat door 1, a passenger seat door 2, a rear left door 3 and a rear right door 4. For each of these car doors 1 to 4,
There is a car door lock 5. Car door lock 5
Belongs to the central locking device together with the servomotor 6 in the individual vehicle door lock 5. Furthermore, an electric operation control circuit 7 for operating and monitoring the central locking device is provided, which operates on operating information and receives monitoring information from the vehicle door lock 5. In the schematic diagram of FIG.
For example, an operation command such as locking, unlocking, turning on the anti-theft device, turning off the anti-theft device, etc., whether through the high frequency HF or the infrared iR, is stored in the locking device via the electronic key 8. It shows that it can be introduced into.

Further, what can be seen from FIG. 1 is that the operation control circuit 7 for transmitting information has a bus system 9. The busbar is a component known per se in the embodiment as a single-wire busbar, from which the individual conductors 10 are connected to the vehicle door lock 5 or the adjusting members 6 in the individual doors 1 to 4.
Have been led to. The adjusting member 6 is composed of, for example, a motor and a speed reducer, and optionally has a sensor.

In the embodiment according to FIG. 2, each bus system 9 operates with a line-multiplexing system element 11 housed in each individual adjusting member 6. Such a line multiplexing system element 11 is shown in the drawing. Its structure, together with the functional elements, is described in FIG. FIG.
Is a micro controller 12 and a motor exciter 1 which are arranged after the circuit multiplexing system element 11 in terms of a circuit.
3 and the control sensor 14 belong to the operation control circuit.

In the embodiment according to FIG. 3, each bus system 9 operates with a line multiplexing system element 11 housed in each individual vehicle door lock 5.
Such a line multiplexing system element 11 is shown in the drawing. Its structure is described in FIG. 4, together with the functional elements, as already mentioned.

From the comparative observation of FIG. 2 and FIG. 3 on the one hand, and FIG. 4 on the other hand, the line multiplex system element 11, the micro controller 12, and the motor exciter 13 of each adjusting member 6 are shown. It can be seen that they are arranged on the common circuit board 15 housed in the adjusting member 6 or the automobile door lock 5. The circuit board 15 is enclosed in a dustproof and moistureproof capsule together with the circuit components placed on it. FIG. 1 shows that the busbar system 9 is designed as a digitally operated single-wire busbar system with pulse-width modulated bits. The circuit multiplexing system element 11, in the exemplary embodiment, has three inputs 16, namely a bus input, an energy input and an input.
Equipped with an input section. The line multiplexing system element 11 is
Depending on the internal switch of the vehicle door lock 5 or the adjusting member 6, for example, a central interlock switch, an internal interlock switch,
It has multiple outputs for each application, such as key switches and control sensors. In the embodiment, eight output parts are provided, of which three are for addresses and five are for other functions. The control sensor 14 shown in FIG. 2 is embodied as a sensor which operates in a contactless manner and can therefore be integrated directly in the electronic circuit. The circuit board 15 can be surrounded by a dustproof and moistureproof capsule 18. The adjusting member 6 is a special part. It is separated from the vehicle door lock 5 by a casing and is merely functionally connected to the vehicle door lock 5. However, the adjusting member 6 can also be incorporated in the vehicle door lock 5. In the case of the vehicle door lock 5 described, the vehicle door lock of the "structure with closed casing" embodiment is dealt with (German Patent 3526).
No. 501), in which case the circuit board 15 is housed in and protected by a closed casing 19. The circuit board 15 can also be housed in a capsule by the method described.

[Brief description of drawings]

FIG. 1 is a schematic view of a locking device according to the present invention.

2 is an embodiment according to claim 1 in which the vehicle door lock from the locking device of FIG. 1 is shown partially open on an essentially enlarged scale with respect to FIG. 1;

3 shows the vehicle door lock from the locking device of FIG. 1 partly opened to an essentially enlarged scale with respect to FIG. 1, in an embodiment according to claim 2;

FIG. 4 is a diagram showing the circuit board from the objects of FIGS. 2 and 3 together with their functional elements.

[Explanation of symbols]

 1 Driver's Seat Door 2 Passenger Seat Door 3 Rear Left Door 4 Rear Right Door 5 Car Door Lock 6 Servo Motor 7 Operation Control Circuit 8 Electronic Key 9 Busbar System 10 Conductor Wire 11 11 Line Multiple System Element 12 Micro Controller La 13 motor operating device 14 control sensor 15 circuit board 16 input unit 17 output unit 18 capsule 19 casing

Claims (7)

[Claims] 1. A door lock for each automobile door,
Central locking device equipped with electrical adjustment members, one for each individual door lock, and for operating and controlling the central locking device operating with operating information and receiving monitoring information A vehicle locking device having the operation control circuit of 1., further comprising the following features: 1.1) The operation control device has a bus system for transmitting information, 1.2) Each bus system has an individual bus system. Operating with line-multiplexing system elements each housed in one of the adjusting members, 1.3) Microcontrollers arranged behind the line-multiplexing system element in circuit for each vehicle door lock.
The motor, the motor exciter and the control sensor belong to the operation control circuit, and 1.4) the line multiplex system element for each vehicle door lock, the micro controller and the motor exciter. A locking device for an automobile, wherein the locking device is arranged on a common circuit board housed in an adjusting member, and in that case, the circuit board is encapsulated in order to prevent dust and moisture. 2. A door lock for each automobile door,
Central locking device with a single servo motor in each individual door lock, and operating control for operating and controlling the central locking device, which operates with operating information and receives monitoring information A vehicle locking device having a circuit, further comprising the following features: 2.1) The operation control device has a bus system for transmitting information, and 2.2) The bus system has individual adjusting members. Operate with line-multiplexed system elements each housed in a single, 2.3) for each vehicle door lock, housed in a separate doorlock, ie behind the line-multiplexed system element in circuit. The micro controller, the motor exciter and the control sensor housed in the vehicle belong to the operation control circuit, and 2.4) the line multiplex system element and the micro controller for each vehicle door lock. The roller and motor exciters are arranged on a common circuit board housed in a vehicle door lock, the circuit board being encapsulated for dust and moisture protection. Locking device for automobiles. 3. A locking device according to claim 1 or 2, wherein the bus system is designed as a digitally actuated single-wire bus system having bits with pulse width modulation. 4. The locking device according to claim 1, wherein the line multiplexing system element has three input sections (busbar input section, energy input section, ground input section) and an automobile door. Depending on the internal circuit of the lock (for example, central interlock switch, internal interlock switch, key operation switch,
Locking device with multiple outputs (for control sensors). 5. A locking device according to any one of claims 1 to 4, wherein the control sensor is implemented as a non-contact actuating sensor, for example as a hall sensor. 6. The locking device according to claim 1, wherein the circuit board is surrounded by a dustproof and moistureproof capsule. 7. A locking device according to any one of claims 2 to 5 for an automobile equipped with an automobile door lock according to the embodiment of the "structure with a closed casing". A locking device in which only the internal operation adjusting bar, the external operation lever, and the terminal for the electric wire are pulled out from the singing, and the circuit board is housed in the closed casing.