电子节气门控制系统硬件在环仿真平台设计

Design of hardware-in-the-loop simulation platform for electronic throttle control system

针对电子节气门控制系统开发过程中存在成本过高与验证过程复杂等局限性,基于华海快速控制原型开发系统设计了电子节气门控制系统硬件在环仿真平台。首先建立电子节气门数学模型,并对电子节气门进行参数辨识;其次采用遗传算法优化比例积分微分(proportional integral differential,PID)控制器的参数并设计了失效判断流程;最后建立电子节气门控制系统的硬件在环仿真平台。利用本平台进行了硬件在环仿真试验,并将实际试验结果与硬件在环仿真结果进行对比,结果表明:当输入正弦信号时,实际试验结果与仿真结果之间电子节气门的响应误差不超过1.2%;当输入自定义信号时,二者之间的响应误差不超过1.0%。可见,我们所设计的平台可以实现对电子节气门模型的参数辨识,以及对控制策略的快速验证。本研究结果对车载电子控制系统的开发具有一定的参考价值。

In response to the limitations of high cost and complex verification process in the traditional development process of electronic throttle control system,a hardware-in-the-loop simulation platform for electronic throttle control system was designed on the basis of Huahai Rapid Control Prototype Development System.Firstly,the mathematical model of electronic throttle was established,with its parameters identified.Secondly,the parameters of proportional integral differential(PID) controller were optimized by virtue of the genetic algorithm,with the failure judgment logic devised.Finally,the hardware-in-the-loop simulation platform of electronic throttle control system was established,where the hardware-in-the-loop simulation test was carried out,whose results were compared with the actual test results.The results show that when the sinusoidal signal is input,the response error of the electronic throttle between the actual test results and the simulation results does not exceed 1.2%.When the custom signal is input,the response error between the two is not more than 1.0%.It can be seen that the designed platform can realize the parameter identification of the electronic throttle model and the rapid verification of the control strategy.The research results have certain reference value for the development of vehicle electronic control system.