| This dissertation designs a preliminary architecture of hardware-in-loop simulation (HILS)applied to yaw velocity.It introduces the basic architecture ,features and application in automotive electronic control of hardware-in-loop system. Afterwards, describing the importance of yaw velocity in stableness control, it shows the significance to construct yaw velocity and construct it on system level.This dissertation designs this system in a structural way, which divided the over whole system into automotive dynamics and simulator interface module, control and actuator module, monitor and communication module. The control and actuator module consists three subsystems: signal adapt subsystem, sampling and controlling subsystem, actuator and sensor subsystem. This passage configures and designs the above mentioned functional module based on ADSL driving simulator.The system design starts from the research of the time and frequency attributes of yaw velocity, which provides a reference for configuration of simulator and design of signal adapter. This passage takes AT89C52 micro-controller unit(MCU) as the center of the system and configure its peripherals which includes sampling circuit, step motor(actuator) driver, gyro(sensor) application circuit, RS232C communicating circuit. The system control software is realized by two different ways built on interrupt service and operating system, separately, and the sampling programs, step motor control program and communication programs are built on it.After the total construction of this simulating system, steady and dynamic analyze are proceeded , which proves the system high quality of linear and real-time performance. |
