Gear indicator lighting and diagnosing circuit for car shifter
A technology for indicating lighting and diagnosing circuits, applied in lighting devices, electric light sources, electrical components, etc., can solve the problems of no gear indication, indication, and insufficient brightness of gear indication, and achieve the effect of ensuring accuracy and safety.
Active Publication Date: 2018-05-04
DURA GANXIANG AUTOMOTIVE SYST SHANGHAI
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Problems solved by technology
[0002] The gear position indication lighting of the car shifter is set to facilitate the driver to switch gears accurately. At present, most of them use LED devices; but most vehicles do not detect the LEDs of the backlight, so it is possible to During the process, if one or more LEDs fail and there is no gear indication or there are gear indications, so that the driver cannot determine the shift position, or the brightness of the gear indication is not enough to play the role of gear indication, These will bring harm to the driver's safe driving
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[0022] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.
[0023] see Figure 1 to Figure 4 As shown, the present invention discloses a gear position indicating lighting and diagnosis circuit of an automobile, including a gear position display module 10, a driving and signal sampling module 20 connected to the gear position display module, and a driving and signal sampling module connected to the A control module 30 and a power module 40 .
[0024] The gear position display module is composed of five LEDs P, R, N, D, M and a current-limiting resistor; this circuit can monitor the brightness and brightness of the 5 LEDs, and can store the information and call it at any time, and can also send it to the whole system in real time. Vehicle ECU conveys information for safe driving reference.
[0025] The d...
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The invention provides a gear indicator lighting and diagnosing circuit for a car shifter. The gear indicator lighting and diagnosing circuit comprises a gear display module, a driving and signal sampling module connected with the gear display module, a control module connected with the driving and signal sampling module and a power supply module in charge of power supply for the whole circuit, wherein the gear display module comprises five LEDs P, R, N, D and M and a current-limiting resistor; each circuit unit comprises an NPN / PNP triode array combination device BCR10PN, a light-emitting diode, a plurality of resistors and a plurality of capacitors; the control module is used for receiving current sampling information transferred from the driving and signal sampling module and carrying out detection to diagnose whether the LEDs normally work or not and short circuit and open circuit faults exist or not. According to the gear indicator lighting and diagnosing circuit for the car shifter, various possible problems, such as no gear display, disordered display and insufficient brightness, in gear display can be early found, and the accuracy of gear display is ensured, thereby ensuring the driving security of a car.
Description
technical field [0001] The invention relates to the technical field of automobile electronics, in particular to an automobile shifter gear indicating lighting and diagnosis circuit. Background technique [0002] The gear position indication lighting of the car shifter is set to facilitate the driver to switch gears accurately. At present, most of them use LED devices; but most vehicles do not detect the LEDs of the backlight, so it is possible to During the process, if one or more LEDs fail and there is no gear position indication or there are gear position indications, so that the driver cannot determine the shift position, or the brightness of the gear position indication is not enough to play the role of gear position indication, These all can bring harm to driver's safe driving. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a device that can detect various problems that may occur in the gear position displ...
Claims
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IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/50
Inventor 何春鸣顾为华符斌吴春明
Owner DURA GANXIANG AUTOMOTIVE SYST SHANGHAI