An automobile electronic combination instrument comprises a circuit board, a light box, a segment code liquid crystal screen, diffusion film, an instrument bottom shell and a transparent protective cover, wherein a micro controller, a backlight led light module corresponding to a liquid crystal stroke segment of the segment code liquid crystal screen, a backlight led light information collection module, a liquid crystal driver and a switching power supply module are arranged on the circuit board; the backlight led light module comprises a header backlight light module connected to an ignition lock power module, and an alarm and indication light module connected to the backlight led light information collection module; the micro controller is connected with an automobile on-site local area control network through a CAN transceiver; the micro controller is connected with the alarm and indication light module through the backlight led light information collection module; the output terminal of the micro controller is connected with the input terminal of the liquid crystal driver; the output terminal of the liquid crystal driver is connected with the segment code liquid crystal screen. Compared with the conventional instrument, the process of waiting for a stepper motor to get back to zero is omitted, and the automobile electronic combination instrument has the characteristics of low power consumption, signal controllability, reliability in saving data in power failure and capability of displaying a large amount of information on an instrument board.
Automobile electronic combination instrument
2015-07-22
Patent
Electronic Resource
English
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |
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