面向产品需求的气压ABS控制器硬件开发

Hardware development of pneumatic ABS controller for product demand

以自主开发气压制动防抱死系统(ABS)控制器硬件为目标,根据气压ABS工作原理和控制器硬件的功能需求,提出了控制器硬件总体方案,完成了气压ABS控制器硬件电路设计;提出了面向产品开发的ABS控制器硬件开发测试流程,开发了控制器硬件,并以某12 m纯电动客车为对象进行了整车实验验证。实验结果表明:在水泥路面下,制动踏板开度为100%时,制动减速度可达到7.1m/s^2,制动过程中无车轮抱死,且制动减速度无剧烈变化,制动性能和制动感觉均符合企业要求。本研究可为我国自主开发气压ABS控制器硬件提供参考,同时可为在ABS功能上开发汽车电子稳定性控制、制动能量回收等动力学控制功能提供硬件基础。

The goal of this paper was to develop the pneumatic anti-lock braking system(ABS) controller hardware independently. According to the working principle of pneumatic ABS control system and the function requirements of controller, the hardware scheme of ABS controller was given before the hardware circuit of pneumatic ABS controller was designed. The hardware developing and testing process of ABS controller for product development was put forward and the controller hardware was made as per process. A 12 m pure electric bus with the controler was taken as an object and tested based on the pavement experiment. The experimental results showed that the braking deceleration of vehicle can reach 7.1 m/s2 on the cement pavement when the brake pedal opening was 100%. No wheel locking and no drastical braking deceleation occurred during braking. The braking performance and feeling met the requirements. This study can provide a reference for developing the hardware of ABS controller independently, and it can provide a basis for developing other dynamic control functions such as electronic stability control and braking energy recovery.