中文摘要：

为解决电动化底盘主动悬架系统车身高度或可调阻尼的单独控制问题,改善车辆的整车减振性能,提出了一种车身高度与可调阻尼集成控制的主动悬架集成控制系统,以空气包取代传统的螺旋弹簧,以阻尼分级可调的减振器取代传统减振器,车身高度控制在正常车高模式、车身升高模式和车身降低模式之间切换,可调阻尼控制在软压缩软回弹模式、硬压缩软回弹模式、软压缩硬回弹模式和硬压缩硬回弹模式之间切换。进行了不同模式下车速为60 km/h工况下的蛇行试验实车道路测试,并分析了主动悬架集成控制系统对整车动态特性的影响。结果表明,不同模式下的方向盘转角分别为74.515 0、69.603 2、66.315 8和65.890 7 deg,方向盘转矩分别为4.523 8、4.440 0、4.594 4和4.470 9 N·m,车身侧倾角分别为3.210 3、3.089 9、2.987 7和3.195 8 deg,车身横摆角速度分别为16.790 1、15.925 9、15.108 0和15.149 9 deg/s,侧向加速度分别为0.570 0、0.548 8、0.530 9和0.541 8 g;车身高度与可调阻尼集成控制系统实现了主动悬架系统与整车的良好匹配,提升了车辆的综合性能;验证了主动悬架系统集成控制策略及其结构设计的可行性。对车辆底盘集成控制系统的设计及控制策略的研究具有重要的理论研究价值和工程应用前景。

英文摘要：

In order to solve the individual control problem of body height or adjustable damping for electric chassis active suspension and to improve the full vehicle performance, a kind of integrated control system with body height and adjustable damping was proposed. The traditional spiral spring was replaced by air bag, and traditional shock absorber was replaced by the adjustable damper. The body height was controlled in the switching modes of the normal height mode, the body raise mode and the body reduction mode. The adjustable damper was controlled in the soft compression and soft rebound mode, the hard compression and soft rebound mode, the soft compression and hard rebound mode and the hard compression and hard rebound mode. Full vehicle snaking test with 60 km/h was conducted under different modes and the impact of active suspension integrated control system on the vehicle dynamic characteristics was analyzed. The results show that the test results of steering wheel angle under different modes were 74. 515 0,69. 603 2,66. 315 8 and 65. 890 7 deg respectively, the steering wheel torque under different modes were 4. 523 8,4. 440 0,4. 594 4 and 4. 470 9 N· m respectively, the body roll angle under different modes were 3.210 3,3.089 9,2. 987 7 and 3. 195 8 deg respectively, the yaw rate under different modes were 16. 790 1,15. 925 9,15. 108 0 and 15. 149 9 deg/s respectively, the lateral acceleration under different modes were 0. 570 0,0. 548 8, 0. 530 9 and 0. 541 8 g respectively. The integrated control system of body height and adjustable damping achieve good matching between the active suspension system and vehicle, and the vehicle comprehensive performance is improved. The feasibility of the integrated control strategy and struc- ture design of active suspension system is verified. It has an important value for theoretical research and engineering application of vehicle integrated control system and its control strategy.