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CAN bus electrical control system for automobile windows

A CAN bus, bus electric technology, applied in the field of automotive power window control devices, can solve the problems of large wire consumption, complex lines, many control contacts, etc., to achieve perfect protection functions, improve safety, and anti-pinch protection functions. Effect

Inactive Publication Date: 2010-06-23
GUIZHOU UNIV
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an automobile CAN bus electric window control system to overcome the problems of complex circuit lines, many control contacts, and large amount of wires used in the existing automobile electric window control system, as well as the problems caused by the installation of Hall sensors. Insufficient additional cost

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  • CAN bus electrical control system for automobile windows
  • CAN bus electrical control system for automobile windows
  • CAN bus electrical control system for automobile windows

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Embodiment Construction

[0027] Embodiments of the present invention: the overall network connection of the present invention is as attached figure 1 shown. The main controller of the window of the car cab, the window controller of the passenger cab, the rear left window controller, the rear right window controller and the top window controller are connected by CAN bus, and they are connected by the single chip microcomputer. Take control. Among them, the main controller of the driver’s window can not only control the lifting of its own window, but also independently control the lifting of the other three electric windows and the opening and closing of the top sunroof through the CAN bus.

[0028] Such as figure 2 As shown, the present invention includes a power supply circuit 1 , a CAN bus transceiver 2 , a photocoupler 3 , a microcontroller 4 , a drive circuit 6 , a lift switch interface circuit 7 , and a signal processing circuit 8 .

[0029] Wherein, the power supply circuit 1 includes a stora...

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Abstract

The present invention discloses a CAN bus electrical control system for automobile windows. The control system comprises a power circuit (1), a CAN (controller area network) bus transceiver (2), a photocoupler (3), a microcontroller (4), a power drive circuit (6), a lifter switch interface circuit (7) and a signal processing circuit (8). The power circuit (1) comprises an accumulator cell and a voltage-stabilizing / isolated power supply. The microcontroller (4) comprises a peripheral interface controller (PIC) and a CAN bus controller. The power drive circuit (6) comprises a current sampling circuit (5). The current sampling circuit (5) is formed by connecting a current (Curr) end of the power drive circuit (6) with the RAO port of the microcontroller (4). The present invention can make wires by which five windows are connected in an automobile reduced to one fifth of the original wires. Meanwhile, the control device has a window anti-pinching function, people can not be pinched and hurt, and the safety properties of the automobile are improved.

Description

Technical field: [0001] The invention relates to an automobile electric window control device. Background technique [0002] Automobile electric window controllers usually adopt a "point-to-point" single control method, with little connection between them. This increases the wiring harness in the car, the wiring is complicated, and the reliability is poor. No matter in terms of material cost or work efficiency, this wiring method is difficult to meet the needs of modern automobile development. [0003] In addition, some domestic cars currently use electric anti-pinch windows, which can effectively prevent the human body from being pinched by electric glass; if the Hall sensor is used to detect the speed of the motor at all times, when the electric window encounters an obstacle during the upward process, The speed of the motor will slow down, and the Hall sensor will convert the detected speed change into a change in current and send it to the microprocessor. The microproce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05F15/20E05F15/16E05F15/14B60R16/023G05B19/418E05F15/659E05F15/695E05F15/70
CPCY02P90/02
Inventor 王义傅兴华邱云峰
Owner GUIZHOU UNIV
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