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Design and implementation of the vehicle velocity estimator based on FPGA

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4 Author(s)
Jia Zengben ; State Key Lab. of Automobile Dynamic Simulation, Jilin Univ., Changchun, China ; Zhao Haiyan ; Xie Xiaohua ; Ma Mingxia

To gain the absolute vehicle speed is the key issue in Anti-lock Braking System (ABS). A Kalman filter based on Field Programmable Gate Array (FPGA) for vehicle speed estimation is presented in the paper. Firstly, the mathematic model of eight degree of freedom is given under the combined slip condition, and then Kalman filter is obtained by the usage of DSP Builder of MATLAB/Simulink. An implementation based on FPGA is proposed and the vehicle velocity estimator is designed. In the end, the simulation result is given and transformed to the Very High Speed Integrated Circuits Hardware Description Language (VHDL). The Real Time Level (RTL) simulation for the Kalman filter is carried out in Modelsim. The simulation result shows that the proposed method is effective.

Published in:

Control Conference (CCC), 2010 29th Chinese

Date of Conference:

29-31 July 2010