A kind of control method of automobile near and high beam control system
A technology of a control system and a control method, applied in optical signals, vehicle components, signal devices, etc., can solve the problems of complete failure, simultaneous failure, and low driving safety, and achieve the effect of improving driving safety.
Active Publication Date: 2017-02-01
CHONGQING CHANGAN AUTOMOBILE CO LTD
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Problems solved by technology
This control system has the following problems: (1) Since the left and right low beams are connected to the same drive device (that is, the original first drive circuit), if the original first drive circuit fails, the left low beam and the right low beam will be Simultaneous failure (that is, the low beam function is completely invalid); since the left and right high beams are connected to the same drive device (ie, the original second drive circuit), if the original second drive circuit fails, the left high beam and the right The high beam will also fail at the same time (that is, the high beam function is completely invalid), and the driving safety is low; (2) The original first and second drive circuits adopt a relay structure without a feedback loop, and the control system is not connected to the combination instrument. If the original If the first and second drive circuits or the left and right low beams or the left and right high beams fail, the driver cannot be reminded, and the driving safety hazard is relatively large.
Method used
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[0022] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0023] Such as Figure 2 to Figure 4 The near and high beam control system of the car shown includes left low beam 1, right low beam 2, left high beam 3, right high beam 4, MCU 5 (using STM8 series single-chip microcomputer), and the switch operation signal of MCU 5 The input processing circuit 6 connected to the input port 5-A, the combined switch 7 connected to the input processing circuit 6, the CAN transceiver 10 connected to the communication ports 5-D-1 and 5-D-2 of the MCU 5, and the CAN transceiver The combination meter 11 connected to the device 10, the first drive circuit 8 connected to the two control signal output ports 5-B, 5-I of the MCU 5 through the input ports 8-C, 8-D, and the first drive circuit 8 connected through the input ports 9-C, 9-D is connected to the second drive circuit 9 of the other two control signal output ports 5-G, 5-C of the MCU 5...
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The invention discloses an automobile low and high beam control system and method. The control system comprises a left low beam lamp, a right low beam lamp, a left high beam lamp, a right high beam lamp, an MCU (Microprogrammed Control Unit), an input processing circuit connected to a switching operation signal input port of the MCU, a combination switch connected to the input processing circuit, a CAN (Controller Area Network) transceiver connected to a communication port of the MCU, a first drive circuit connected to two control signal output ports of the MCU, and a second drive circuit connected to another two control signal output ports of the MCU. The left low beam lamp is connected to one of drive signal output ports of the first drive circuit. The left high beam lamp is connected to the other drive signal output port of the first drive circuit. The right low beam lamp is connected to one of drive signal output ports of the second drive circuit. The right high beam lamp is connected to the other drive signal output port of the second drive circuit. The automobile low and high beam control system and method can reduce the probability of complete failure of low and high beam functions and improve the driving safety.
Description
technical field [0001] The invention belongs to the field of automobile electronics, and in particular relates to a control method for an automobile near and far beam control system. Background technique [0002] With the rapid development of modern automobile technology, automobile driving safety has become the focus of attention. [0003] Such as figure 1 As shown, the existing automobile near and high beam control system includes left low beam 1, right low beam 2, left high beam 3, right high beam 4, MCU 5, and switch operation signal input port 5 of MCU 5 -A connected input processing circuit 6, a combination switch 7 connected to the input processing circuit 6, a CAN transceiver 10 connected to the communication port 5-D-1, 5-D-2 of the MCU 5, through the input port 12-B The original first drive circuit 12 connected to a control signal output port 5-B of the MCU 5 and the original second drive circuit 13 connected to another control signal output port 5-C of the MCU 5...
Claims
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IPC IPC(8): B60Q1/14
Inventor 陈华方翠杨辉
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD