电子液压制动系统液压力控制发展现状综述

Review on Hydraulic Pressure Control of Electro-hydraulic Brake System

回顾电子液压制动系统液压力控制问题。电子液压制动系统(Electro-hydraulic brake system,EHB)是汽车制动系统的一个重要发展方向。主要特征是采用电子元器件替代传统制动系统中的部分机械零部件,保留了原有成熟可靠的液压部分,具有结构紧凑、响应快速、易于实现再生制动、制动力可精确控制等突出优点,容易实现多种主动安全控制功能。在剖析电子液压制动系统组成架构的基础上归纳出电子液压制动系统的液压力控制架构,以控制变量和控制算法为突破口,从主缸液压力控制和轮缸液压力控制这两个层面分别对国内外的研究进展进行综述,对能够应用于电子液压制动系统上的电磁阀特性进行分析,对其控制方式进行研究,提出对于电子液压制动系统液压力控制的发展展望。汽车的电动化和智能化对液压力控制算法的控制精度、适应性和鲁棒性要求进一步提高。液压力控制算法对整车的制动舒适性和操纵稳定性影响也有待进一步讨论。

The hydraulic pressure control problem of the electro-hydraulic brake system is reviewed.The electro-hydraulic brake system（EHB） becomes an important development direction of the automobile brake system.The main feature is that electronic components are used to replace the mechanical parts of the traditional brake system,and the original mature and reliable hydraulic parts are retained.The EHB is compact,responses rapidly,easy to achieve the regenerative braking function and controls the braking force precisely.It also has other outstanding advantages and is easy to achieve a variety of active safety control function.Based on the analysis of the composition of the EHB,the hydraulic pressure control structure of the EHB is summarized.Based on the control variable and control algorithm,from the view of the master cylinder hydraulic pressure control and wheel cylinder pressure control,both of domestic and foreign research progress are reviewed.The characteristics of the electromagnetic valve which can be applied to the EHB are analyzed and the control method is studied.The development outlook of the EHB is proposed.Due to the electrification and intelligentization of the automobile,the requirement of the control precision,adaptability and robustness of the hydraulic control algorithm is further improved.The influence of the hydraulic pressure control algorithm on the vehicle braking comfort and handling stability also needs to be further discussed.