关键词: 电动助力转向模块；自动泊车辅助模块；CANoe；功能交互

Abstract: The realization of automatic parking function on the whole vehicle requires the function interaction between auto matic parking assist (APA) module and electric power steering (EPS) module. Due to the different development cycle of the two modules, the cycle of function testing and verification on the real vehicle is longer. Therefore, a method of using CANoe to simulate the signal of the auto matic parking assist module and connecting to the actual hardware module of electric power steering module is proposed to realize the interactive test and verification method of the two modules. This article uses the development, testing and analysis functions of CANoe to create the electric power steering module DBC parsing file, define the parameters of each node and signal, and send the analog signals of parking assist module node and basic vehicle information node through the program control to realize the communication with electric power steering module.And based on the steering system bench, the test and verification of the example application are completed, which shows that the test method is feasible, which can not only reduce the cost of real vehicle testing, but also shorten the development cycle and improve the efficiency of electric power steering module and auto matic parking assist module interactive function development.

Key words: Electric power steering module; Automatic parking assist module; CANoe; Function interaction