RU2191125C2 - Antitheft device action onto vehicle unit, including ignition system and design of such device - Google Patents

Abstract

FIELD: automotive industry; prevention of unauthorized use of vehicle. SUBSTANCE: proposed antitheft devices acting onto vehicle units have control and signaling unit and control units of automobile unit actuators made for identification of vehicle code and code of corresponding unit of vehicle coupled with control and signaling unit. The later is made for shaping vehicle identification code and/or vehicle unit identification code when control signal is supplied to vehicle actuators. EFFECT: group of inventions provides improved reliability of protection of vehicle from unauthorized use, theft and hi-jacking. 7 cl, 4 dwg _

Description

Technical field
The device relates to the equipment of vehicles, in particular automobiles, and may find application to prevent unauthorized use of the vehicle.

State of the art
Known anti-theft devices containing a microcontroller associated with sensors, designed to compare the signals received from the sensors with the given signals stored in its memory. In case of discrepancy, the corresponding alarm system is activated (WO 91/16219, 60 R 25/10, 10.31.95, US 5673017, 60 R 25/10, 09.30.97).

 Known anti-theft devices containing a portable code transmitter for transmitting a code signal, a receiver for receiving this signal, identifying it and starting the engine, the receiver is connected to the engine control circuit (US 5818330, 60 R 25/10, 10/06/98).

 The closest in technical essence to the claimed device is an anti-theft device control unit of the car, including the ignition system of the vehicle (car), containing the electric motor of the car’s starter, the circuit of which is powered by the ignition switch located in the passenger compartment. The device comprises an alarm and control unit, executed on an electronic circuit encoded to operate in accordance with the supply of a given series of pulses for powering the solenoid coils and the car’s starter motor, forming a control unit for the car’s components, in particular the starter and ignition system. The electronic circuit is also designed to determine whether the specified motor is started by monitoring the variable component of the battery voltage, and is connected to the car alarm system (WO 85/01708, 60 R 25/10, 04.25.85).

 A disadvantage of the known devices is the ability to turn on the vehicle components and actuators, including the vehicle ignition system, by supplying any signal of a certain level to the signaling and control unit. The known devices do not provide means of identification when unlocking actuators, which reduces the reliability of anti-theft protection.

 The technical result of the claimed anti-theft device control units of the car, including the ignition system, is to increase the reliability of protecting the car from unauthorized use, from theft, theft, use of the car (vehicle) without the knowledge of the owner. The devices also allow you to expand the arsenal of technical means used to drive a car.

 The technical result is achieved by the fact that in the anti-theft control unit of the vehicle unit containing the alarm and control unit and an actuator, a control unit for the actuator of the vehicle unit is introduced, which is used to identify the vehicle code and is connected with the unit actuator and the control and alarm unit for generating vehicle identification code when a control command is issued to an executive device.

 In addition, the control unit for the executive unit of the car unit contains a memory element for the vehicle identification code, a comparison element associated with the memory element, the inputs of which are connected to the output of the control and signaling unit, the output of the comparison element is connected to the actuator, the input element of the memory element is used to enter the code identification.

 The control unit for the actuating unit of the car unit contains a command selector, a memory element for the identification code of the car unit, a memory element for the car identification code, the output of each of which is connected to the corresponding comparison element, the output outputs of the memory elements are used to enter the corresponding identification codes, the outputs of the comparison elements and the command selector connected to the inputs of the AND element, which is the output of the block, the inputs of the memory and comparison elements and the command selector are connected to the control output I control unit and alarm.

 The technical result is achieved by the fact that in the anti-theft device control unit of the car comprising a control unit and an alarm system and at least one actuating unit of the car unit, control units for the actuating unit of the car unit are introduced to identify the vehicle code and / or vehicle unit identification code with an actuator of the corresponding vehicle assembly and a control and alarm unit for generating an identification code vehicle and / or vehicle identification code when a control command is issued to an executive device.

 Each control unit for the actuating unit of the car unit contains a command selector, a memory element of the identification code of the car unit, a memory element of the car identification code, the outputs of the latter are connected to the corresponding comparison element, the input inputs of the memory elements are used to enter the corresponding identification codes, the outputs of the comparison elements and the command selector are connected with the inputs of the AND element, which is the output of the block, the inputs of the memory and comparison elements and the command selector are connected to the control output I control unit and alarm.

 The comparison element has an additional output, designed to generate a signal mismatch identification codes.

 An additional output of the comparison element is connected to the corresponding input of the control signaling unit.

 In FIG. 1 is a functional diagram of an anti-theft device control unit of a car, FIG. 2 and FIG. 3 is a functional diagram of an anti-theft device control unit of a car, including the ignition system of a car, FIG. 4 is an example implementation of an anti-theft device control unit of a car for a case of multiple control car nodes and supply to these nodes for the execution of several commands.

 The device control unit of the car (Fig. 1) contains a control signaling unit 1 and having an input 11 for issuing a command to the corresponding car unit, an output 12 associated with the alarm system, an output 15 for supplying code commands to the respective car units, the unit 1 can be made in the form of microprocessor means, control units 2, 3 and 4 of actuating devices of the respective vehicle components, which are command identification units. Some inputs of blocks 2, 3, and 4 are connected to the output 15 of the control and signaling unit, the outputs of blocks 2, 3, and 4 are connected to actuators of the corresponding nodes 6, 7, and 8 of the car with the possibility of controlling them. Other inputs of blocks 2, 3, and 4 are connected to means 5 for entering identification codes.

 Figure 2 shows an example implementation of an anti-theft device control unit of the car, in particular the ignition system, where the control unit 1 and alarm, control unit 2 of the actuator unit of the car unit, including the ignition system, designed to identify commands to control the unit of the car, including ignition system, element 6 for switching on the ignition system (Fig. 3).

 The example of execution of the control unit 2 of the actuator of the ignition system shown in FIG. 2 is intended to identify several ignition system control commands.

Block 2 consists of memory elements 9 ₁ and 9 ₂ , comparison elements 10 ₁ and 10 ₂ , a command selector 14, AND element 17 (in the general case of a coincidence block). Elements 9 ₁ and 9 ₂ are associated with a means 5 intended for entering codes for identifying commands of a vehicle assembly, including an ignition system. The outputs of the elements 9 ₁ and 9 _{2 are} connected to the inputs of the same comparison elements 10 ₁ and 10 ₂ , the outputs of which and the command selector 14 are connected to the element And 17, the output of the element 17 is connected to the actuator unit of the vehicle, including the inclusion and / or control 6 ₁ by the ignition system (FIG. 3). Elements 9 ₁ , 9 ₂ , 10 ₁ and 10 ₂ and 14 are connected to the output 15 of the control and signaling unit, intended for the submission of code commands to the vehicle assembly. The outputs 16 of the comparison elements are also connected to the control and signaling unit of the vehicle and are designed to provide a signal of inconsistency of the received command to the corresponding node code, the output of the command selector 14 is connected to the command input of the vehicle unit 6.

In FIG. 4 is a functional diagram for controlling a plurality of vehicle components. The device comprises a plurality of control units 2, 3 and 4 of the actuating devices of the respective units 6, 7 and 8 of the vehicle, including the ignition system 6. The control units 3 and 4 are made similar to block 2 described above, and also contain elements 9 ₁ , 9 ₂ , 10 ₁ , 10 ₂ , 14 and 17, connected to each other and other nodes of the device in the same way as described for block 2.

 The device operates in several modes.

Previously (in preparation mode), before turning on the anti-theft device by means of a programming device 5, an identification code is entered into the corresponding control unit 2, 3, 4 by the corresponding vehicle nodes, identification codes corresponding to each node are supplied to the first input of the memory element 9 ₁ to store it vehicle, that is, to memory element 9 _{1 of} blocks 2, 3, and 4. Identification codes for memory elements can be supplied via the corresponding bus, either with time division, or with another signal division ov. Then, an identification code of a vehicle for storing in these elements is supplied to memory element 9 ₂ of each of blocks 2, 3 and 4.

In preparation for the operation of one of the control units 2, 3, 4, for example, the ignition system, the identification codes are recorded in the memory element 9 ₁ and in the memory element 9 ₂ similarly from means 5.

 In the case of controlling one node of the vehicle (Fig. 2), only one identification code, for example, a vehicle identification code, can be recorded in the memory element 9 of block 2.

In addition, in the preparation mode of anti-theft devices, identification codes in the memory elements 9 of the control units 2, 3 and 4 of the actuating units of the vehicle nodes can also be written as follows. Preliminarily, certain identification codes corresponding, for example, to a specific vehicle unit, are recorded by feeding the corresponding vehicle unit to the memory element 9 ₁ from the programming unit 5 of the unit identification code input code from the programming means 5, and the vehicle identification code into the memory elements 9 _{2 of} all control units executive devices of the vehicle nodes are introduced via bus 15 from the control and signaling unit 1.

Thus, in the memory elements 9 ₁ and 9 _{2 of the} memory of the control unit of the actuator of each node of the vehicle, the node identification code and the vehicle identification code are recorded.

 During normal regular operation of the vehicle, the anti-theft control devices prepared in such a way, in particular, the ignition system of the vehicle or several vehicle components, operate as follows.

When the car is turned on and a command is sent to the actuators of a certain car unit, the driver turns on a certain button or key on the panel (input 11 of block 1), the control and signaling unit 1 generates a code command in the form of a sequence of code signals consisting of a node identification code and a car code recorded in the memory elements of this node, as well as the command code. Code signals are sent to the control units of all nodes, and when the identification code of the car, which came from block 1 to the comparison element 10 ₂ , coincides with the code recorded in the memory element 9 _2, the first input of the And 17 element receives the first coincidence signal. The node identification code, also coming from block 1, is sent to all the comparison elements, however, only when this code matches the node identification code recorded in the memory element of its vehicle’s node 9 ₁ , the comparison element 10 ₁ will work, and from its output the signal matches to the second input of element And 17 of its control unit. The command code, for example, switching on, which also comes to all nodes, is decrypted by the command selector 14, and the selector generates a third signal to the input of the And element, the signal of the selector 14 also goes to the actuator, which only works when the And element 17 is selected node will generate a match signal and turn on its actuator. If one or more signals do not match, the comparison elements 10 ₁ and 10 ₂ form a mismatch signal and transmit it through input 16 to the control and signaling unit. Block 1 when receiving a mismatch signal according to the program includes either an alarm system or signals the need for a second command.

 Thus, anti-theft devices have the ability to reliably identify commands that are sent to the control units of the executive devices of the vehicle nodes.

 To increase the reliability of protection against unauthorized access to the car, the ignition control unit 2 can be installed in a hidden place and / or in a housing made, for example, one-piece. The rewriting of the identification code in the memory elements 9 can be carried out only after dismantling, erasing can be done according to the special program provided, which also increases the reliability of car protection.

 The indicated device allows using the microprocessor used in the equipment of modern automobiles as a control and signaling unit and an ignition control unit due to digital coding of signals.

Claims (7)

 1. The anti-theft device control unit of the car, comprising a control unit and an alarm unit, an actuator unit of a vehicle and an associated control unit for an actuator unit of a car unit, a control unit and an alarm system, is designed to generate a vehicle identification code when a control command containing the specified code is issued to an actuator of the car unit, and the control unit for the actuator of the car unit with the identifier previously entered into its memory element fication for vehicle identification vehicle identification code generated control and signaling unit.  2. The device according to p. 1, characterized in that the control unit for the actuating unit of the vehicle unit contains a memory element of the vehicle identification code and a comparison element associated with the memory element, the inputs of which are connected to the output of the control and signaling unit, the output of the comparison element is connected to the actuator , specifying the input of the memory element is intended to enter the identification code.  3. The device according to claim 1, characterized in that the control unit for the actuating unit of the car unit contains a command selector, a memory element for the identification code of the car node, a memory element for the car identification code, the outputs of the latter are connected to the corresponding comparison elements, the input inputs of the memory elements are for input corresponding identification codes, the outputs of the comparison elements and the command selector are connected to the inputs of the AND element, which is the output of the block, the inputs of the memory and comparison elements and the selector and the commands are connected to the control output of the control unit and the alarm.  4. An anti-theft device control unit of the car, comprising a control unit and an alarm system, at least one actuator unit of the car unit and control units of the actuator unit of the car, each associated with a control unit and alarm and a corresponding actuator unit of the car and used to identify the identification code vehicle and / or identification code of the vehicle unit, and the control and alarm unit is designed to generate an identification code omobile and / or vehicle identification code assembly when applying a control command containing said codes or one of them, the executive car node device.  5. The device according to claim 4, characterized in that each control unit for the actuating unit of the car unit contains a command selector, a memory element of the identification code of the car node, a memory element of the car identification code, the outputs of the latter are connected to the corresponding comparison elements, the setting inputs of the memory elements are intended for the input of the corresponding identification codes, the outputs of the comparison elements and the command selector are connected to the inputs of the AND element, which is the output of the block, the inputs of the memory and comparison elements, and lecturers of commands are connected with the control output of the control unit and alarm.  6. The device according to claim 5, characterized in that the comparison elements contain an additional output, designed to generate a signal mismatch identification codes.  7. The device according to claim 6, characterized in that the additional output of the comparison element is connected to the corresponding input of the control and signaling unit.

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