A Design Of Intelligent Display System For Facing Driving Status Of Electrical Bus Instrument

It looks no emphasis that all instruments are arranged in the panel like existing product. This paper takes the instrument display of developing electrical bus as designing target. The LCD dispay is emploied to replace traditional panel. Instrument's state which reflect most current driving status is showed on it through intelligent help method and combination transforming method. Furthermore HHEBI-001 intelligent instrument display system is designed.This paper briefly introduces the components of electrical bus control system; analyses the intelligent nistrument sysytem structure and generalizes both the operation principle of CAN bus in vehicle and status of instrument display in vehicle control system. By analysing driving status, the paper has sum up the information needed to be collected and parameters needed be checked and sensor's styles in HHEBI-001 intelligent instrument display system. Information is transmitted to ECU(electronic control unit) through CAN bus and passed to instrument display system after being analysed. Currently status and action of electrical bus can be estimated by driving experience and currently condition. Accordingly, a simple assistant driving information is offered to driver in instrument display area.This designing hardware flat has been founded on SAMSUNG'S s3c2410 and connected to 8 inch LCD. Linux has been reduced and customized for required, and then the embeded linux is builded up. The designing details of HHEBI-001 intelligent instrument interface has been used of QT. The speedmeter, motor tachometer, odometer, energy meter, cooling water thermometer and status signal lamp have been designed in the basic instrument interface. The integrated display area and combination transforming area for helping driver has been designed as well. The simulation is done in order to simulate the real condition and instrument display function by designing drive status and malfunction console. The drive status can be changed through setting the simulated console. It is validated that the instrument display interface can offer the driver important information in simulation. And corresponding instrument status is represented in combination transforming area.