RU30322U1 - Car door controller - Google Patents

Description

the number of door module devices and their functions without changing the laid harness

wires. a The specified problem in the proposed device is solved by the fact that introduced

a controller for controlling loads and receiving signals of switches installed on the door with the organization of two-way information exchange with other devices of the car via the interface bus.

The above set of features in comparison with the prior art allows us to conclude that the claimed technical solution meets the criterion of novelty. The set of distinctive features leading to the solution of the problem follows from the prior art, therefore, the claimed technical solution meets the criterion of inventive step.

The invention is illustrated by the drawing shown in Fig. 1 and consists of a microprocessor 1 for processing a bus driver signal, controlling buffer converters and load diagnostics, a bus driver 2, which is a signal transceiver that matches the signal levels of the bus and the microprocessor, and when exchanging information on the interface bus, it can be one of the protocols is used, for example LIN, CAN or L850, connector 3 being standard for any number of control input signals from the bus, control keyboards 4 and actuators 5, as well as buffer converters 6, capable of transmitting a signal to the microprocessor for diagnosing the operability of actuators and sensors 7.

The car door controller with self-diagnostics and signal transmission via the interface bus operates as follows: When an actuator control command 5 receives a signal from the bus 3 to the interface input, the signal is converted by transceiver 2 and fed to microprocessor 1, where it is decrypted. Depending on the address and type of actuator 5,

w

the microprocessor generates an appropriate control signal. After that, the microprocessor analyzes the execution of the issued command. In the event that the command is executed correctly, the microprocessor enters the standby mode of the next command. If - the command was not executed by the actuator, as indicated by the microprocessor buffer device 6, microprocessor 1 generates a fault code and transmits information through the bus driver 2 to the interface bus for processing it on-board or external test and diagnostic equipment with subsequent display of information about malfunctions on the display.

Inventor

Inventor

7

IgB. Nefasov

V.A. Derevyanko

Claims (14)

1. Car door controller, which acts as control units for power windows, door locks, exterior mirrors, including the appropriate keypads for controlling all actuators installed on the car door, for example, a window regulator motor, a door lock lock, electric motors and external mirror heaters, which receives sensor signals , for example, opening a door, characterized in that a single controller with control via the bus interface is introduced a. 2. The car door controller according to claim 1, characterized in that an additional buffer element is introduced to control the door illumination lamp. 3. The car door controller according to claim 1, characterized in that the controller and its control keyboard are installed directly in the car door, thereby eliminating numerous conductors from blocks and keyboards to actuators passing from the door to the car interior. 4. The car door controller according to claim 1, characterized in that the controller operating as part of the vehicle electrical control interface system is configured in such a way that it allows you to change and supplement its functions programmatically without changing the harness that supplies the control signals and the supply voltage. 5. The car door controller according to claim 1, characterized in that the controller is controlled using, primarily, a microprocessor. 6. The car door controller according to claim 1, characterized in that the current switched by the control keyboard is reduced to units of milliamps and less. 7. The car door controller according to claim 6, characterized in that due to the low switching currents flowing through the control keys, the control keyboard is used, for example, of a membrane type. 8. The car door controller according to claim 1, characterized in that the intelligent devices are mainly used as buffer devices. 9. The car door controller according to claim 8, characterized in that the smart electronic keys for controlling electric motors are made mainly according to the full H-bridge-driver scheme, and electric motors working in one direction and other loads are smart keys mainly top-level "High side switch". 10. The car door controller according to claim 6, characterized in that the switching circuit of the control keys switching small currents, when a significant number of them are introduced, can be performed using the “cross” method to reduce the number of microprocessor inputs used. 11. The car door controller according to claim 1, characterized in that the microprocessor according to claim 1 performs continuous diagnostics of the operation of all actuators, with a fault message displayed on the interface bus for subsequent processing by an onboard or external test and diagnostic device and displaying information on the display . 12. The car door controller according to claim 1, characterized in that the number of contacts of the interface connector does not depend on the number and type of actuators installed in the car door. 13. The car door controller according to claim 1, characterized in that the incoming and outgoing information is transmitted via 1 or 2 wires, depending on the type of exchange protocol used on the interface bus. 14. The car door controller according to claim 1, characterized in that the number of functions and the composition of the control circuits of the controller are determined by which door it is installed on, with the maximum number of functions for the driver’s door controller and the minimum for the rear door controller.