Hybrid Control of Automobile's Electronic Stability Program
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摘要: 针对车辆在极限转向工况下出现侧翻与失稳的问题,本文基于电子稳定程序(ESP)建立了混杂切换控制模型。由于ESP对车辆侧翻与失稳的控制是通过差动制动方式实现的,考虑到车轮在制动时由于抱死而影响控制效果,集成了防抱死系统(ABS)。为防止ESP与ABS的控制冲突,设计了差动制动协调器来满足各系统的控制要求。最后,通过双移线与鱼钩工况对提出的控制系统进行仿真试验。仿真结果表明,基于混杂控制的ESP系统能根据车辆不同工况有效控制车辆的失稳与侧翻,提高车辆的操纵稳定性与行驶安全性。Abstract: A hybrid control model of an automobile's electronic stability program (ESP) was established to control its rollover and instability under extreme steering conditions with differential braking. To improve the control effect, an anti-lock braking (ABS) system was integrated. In order to prevent the conflict between ESP and ABS, a differential brake coordinator was designed to meet the control requirements of each system. Finally, we carried out the double-lane and fish hook simulations of the automobile equipped with ESP and ABS systems. The simulation results show that the ESP system with the hybrid control model was effective for controlling the rollover and instability of the automobile; therefore, its operating stability and driving safety were greatly improved.
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Key words:
- electronic stability program /
- hybrid control model /
- rollover /
- instability /
- anti-lock braking system
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