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为了更好地验证混合动力汽车开发中的再生制动控制策略,构建了一种实时性好、模拟精度高的混合动力汽车再生制动试验装置,该装置以底盘测功机为功率吸收和加载装置,以dSPACE系统作为实时控制器。对试验装置系统进行方案设计并分析测试指标,在所构建的再生制动试验装置上进行试验研究。研究结果表明:在运行速度为30,60km·h-1、制动强度为0.1,0.5,以及下长坡工况下进行制动时,试验装置满足工作要求,电机制动转矩Tm、电池荷电状态SOC值等测试参数的变化结果与理论分析相符;系统测试的响应时间小于0.1s,模拟精度达到95%;与传统基于发动机测功机的混合动力汽车再生制动试验台相比,该试验装置具有较好的实时性和模拟精度,有利于混合动力汽车再生制动控制策略快速、准确的试验验证。
In order to better verify the regenerative braking control strategy in the development of hybrid electric vehicle, a real-time, high-precision hybrid regenerative braking test device for hybrid vehicle is constructed. The device uses the chassis dynamometer to absorb and load power Device to dSPACE system as a real-time controller. The experimental equipment system design and analysis of test indicators, in the construction of the regenerative braking test device for experimental study. The results show that when the operating speed is 30,60km · h-1, the braking strength is 0.1,0.5, and the braking is carried out under the condition of long down slope, the test device meets the working requirements, the motor braking torque Tm, the battery The SOC of SOC and other test parameters are in good agreement with the theoretical analysis. The response time of system test is less than 0.1s and the accuracy of simulation is 95%. Compared with the regenerative braking test stand of HEV based on traditional engine dynamometer, The test device has good real-time and simulation accuracy, is conducive to hybrid regenerative braking control strategy fast and accurate test verification.