Abstract:

Changes in electronic technology take place rapidly. Recently, there has been increasing interest in automotive electronics. The trend is towards comfort and safety. There are many applications in automotive electronics, but we emphasize the following research topics. We first develop the complete model for an electro-hydraulic brake (EHB) unit and design a robust ABS controller. According to the simulation results, the EHB model and ABS controller work together to create smooth brake behavior and good performance. Secondly, based on the principle of the radio-frequency homodyne transceiver, a frequency-tunable notch filter is designed to handle the dithering problem of the HG1700 IMU and achieve good signal conditioning. The IMU can be employed to measure angular rates and accelerations for vehicle dynamics. The third research topic is temperature sensor design, which has several applications in automotive electronics, such as in the heating, ventilating, and air conditioning (HVAC) system. The CMOS PTAT principle is adopted to reach cost efficiency. The results show that the designed chip can achieve linearity up to 95% with sensitivity above 2.3 in the range of 20 to 120 . Finally, a FlexRay-based distributed control system is proposed to achieve in-vehicle data fusion and system integration. A demonstration for a wheel slip control system distributed over FlexRay is conducted for the seamless integration of the research topics here.