Development of a platform for Flexray based electric's vehicle control

• Main Authors: Liu, Yi-Zhang, 劉翼彰
• Other Authors: Liaw, Der-Cherng
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/09378601550815108906

碩士 === 國立交通大學 === 電控工程研究所 === 100 === The automotive electronic growing surge, for traffic safety and comfort ,integration of a variety of sensors and electronic control unit in the automotive, achieve a more high-speed and real-time actuation, with sensor and electronic control units increase, the data type and amount is growing up too, and therefore need a high speed and secure network to connect, Flexray vehicle networking protocol was born ,compare with Flexray can and lin, Flexray network protocol more rapid and reliable, that’s why Flexray network suitable for the car’s power train control or car’s security control, like the car’s engine system and abs brake system, this two kind system need a high volume’s data transmission for achieve precise control, thus data bus to transmission data and actuator it’s mean the x-by-wire system, this paper major in Flexray network to integrate four in wheel motor as power drive and use the speed control to implement drive-by-wire system, and modification of existing brake institutions to achieve a brake-by-wire system, and also according to system requirement to design Flexray protocol parameter for reducing resource’s waste, and use the computer general user interface through wireless transmission way issued command and status feedback, at this electric vehicle control system first we have to confirm the amount of data size and the data type, and then distinguish the periodic data and event trigger data , the periodic data put at the static segment update periodically and event trigger data put at the dynamic segment at this way to design Flexray network can save communication bandwidth, let Flexray network more effective.