Significant nonlinearity of electronic hydraulic brake (EHB) systems often leads to complex hydraulic force control responses. This paper designs a motor-driven EHB system and analyzes nonlinear friction induced by the deceleration mechanism. To compensate this friction, a flutter signal is added to the controller input. In addition, this paper designs a fuzzy-PI (Proportional and Integral) controller for the cylinder hydraulic pressure of the EHB system based on the opening and closing characteristics of a solenoid valve. Response curves of cylinder hydraulic pressure are obtained under three different input signals: step, triangular, and sinusoidal. The co-simulation model is established by AMEsim™ and Simulink® ansofts. The study results indicate that the proposed hydraulic-force-following control method of the EHB system can follow different input signals well. A step response test and a sine-wave-following test are carried out, which correspond to the EHB response in the case of driver’s emergency braking and frequent braking, respectively. Stable and rapid pressure build-up is obtained under different step target hydraulic pressures. Therefore, the hydraulic-force-following control method of the EHB system based on a fuzzy-PI controller can satisfy the EHB system accuracy requirements for an electric vehicle, which is a certain valuable for the automobile industry.

电子液压制动器（EHB）系统的明显非线性通常会导致复杂的液压控制响应。本文设计了一种电机驱动的EHB系统，并分析了减速机制引起的非线性摩擦。为了补偿这种摩擦，将抖动信号添加到控制器输入。此外，本文基于电磁阀的打开和关闭特性设计了EPI系统气缸液压的Fuzzy-PI（比例和积分）控制器。在三种不同的输入信号下获得气缸液压的响应曲线：阶跃，三角形和正弦曲线。共同仿真模型是由AMEsim™和Simulink®ansofts建立的。研究结果表明，所提出的EHB系统液压跟随控制方法可以很好地跟踪不同的输入信号。进行了阶跃响应测试和正弦波跟随测试，分别对应于驾驶员紧急制动和频繁制动时的EHB响应。在不同的阶跃目标液压压力下，可以稳定，快速地建立压力。因此，基于模糊PI控制器的EHB系统的液压跟随控制方法可以满足电动汽车的EHB系统精度要求，对汽车工业具有一定的参考价值。分别。在不同的阶跃目标液压压力下，可以稳定，快速地建立压力。因此，基于模糊PI控制器的EHB系统的液压跟随控制方法可以满足电动汽车的EHB系统精度要求，对汽车工业具有一定的参考价值。分别。在不同的阶跃目标液压压力下，可以稳定，快速地建立压力。因此，基于模糊PI控制器的EHB系统的液压跟随控制方法可以满足电动汽车的EHB系统精度要求，对汽车工业具有一定的参考价值。