Synthetic meter system of hybrid vehicle

Abstract

An integrative instrument system of a hybrid electric vehicle includes an instrument controller, a liquid crystal display terminal and a stepping motor instrument plate. The instrument controller includes a central processing module, a CAN information receiving and transmitting module, a serial communication module, a stepping motor drive module, a power voltage adjusting module and an external keystroke inputting module. The CAN information receiving and transmitting module receives the CAN information from a CAN bus interface and is connected to the central processing module, namely the CAN port of an SCM; the serial communication module is connected with the serial port of the SCM and the data receiving serial port of a colorful liquid crystal display terminal; the input end of the stepping motor drive module is connected with the I / O port of the SCM; the output end of the stepping motor drive module is connected with a 16-bus connector; the power voltage adjusting module converts an inputted 12V vehicle DC power into a 5V power to supply power for the power-consuming chips like the SCM, etc. The external keystroke inputting module is connected with one I / O port of the SCM for controlling the output of high-low levels. The integrative instrument system of a hybrid electric vehicle is characterized by multiple functions and low cost.

Description

technical field [0001] The invention relates to a comprehensive instrument system of a hybrid electric vehicle. Background technique [0002] The advancement of science is driving the progress of automotive instrumentation technology. With the development of electronics, optics and computer technology, especially the improvement of ECU performance, the full digital instrument controlled by ECU is mainly used on automotive instrumentation. As the electronic control unit, the single chip microcomputer plays the role of the core controller of the automobile instrument. Nowadays, the instrument panel centered on pointer instruments is common in traditional cars, including indications of some basic driving parameters, such as speedometer, engine tachometer, odometer, fuel gauge, water temperature gauge, various warning or warning lights, etc. . Due to the improvement of requirements for automobile environmental protection, safety, economy, intelligence, etc., car drivers need m...

AI Technical Summary

Problems solved by technology

However, just as the instrument panel of a traditional car usually provides fault status prompts, the driver usually hopes to obtain the fault status of the power system in time during the running of the hybrid car, which is lacking in the LCD screen of the Prius car. It is very inconvenient for the driver to know the failure or alarm information of the engine, electric motor, battery and other components as soon as possible.

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