Abstract: To meet the performance development and function safety requirement of EPS system, it is important to build up the effective EPS electronic testing system. PATAC integrate MTS steering performance bench with dSPACE HIL simulator, embed Carsim model to build new EPS HIL test system. Based on this bench, do On Center (OC) handling stability test and Double Lane Change (DLC) test with simulating wheel speed fault for a project. Get the objective test data of OC and the peak torque value of driver obstacle avoidance of DLC, which effectively supports the performance integrated development and functional safety verification of EPS before the real vehicle is available.

Key words: Hardware in loop HIL; EPS Electromechanical Coupling; Joint Simulation

摘要： 为了满足 EPS 系统的性能和功能安全集成开发要求，建立 EPS 机电耦合 HIL 测试系统尤为重要。泛亚汽车整合 MTS 转向性能试验台和 dSPACE 实时仿真器，集成整车 Carsim 动力学模型，搭建了全新的 EPS 机电耦合 HIL 测试台架。基于该台架，对某项目 EPS 系统进行转向中心区（OC）操稳性能和轮速有效位故障模拟双移线（DLC）工况进行联合仿真 HIL 测试，获得了 EPS 系统 OC 工况性能客观试验数据和 DLC 轮速故障工况驾驶员避障峰值扭矩值，在没有物理样车的情况下对 EPS 系统性能集成和功能安全策略进行了提前测试验证。

关键词: 硬件在环 HIL；EPS 机电耦合；联合仿真