基于某轿车的冗余制动系统选型计算方法  

Selection Calculation Method Based on the Redundant Braking System of A Car

作　　者：孙曙光 蒋帅 隋清海 官浩 郝占武 李松展 Sun Shuguang;Jiang Shuai;Sui Qinghai;Guan Hao;Hao Zhanwu;Li Songzhan(Global R&D Center,China FAW Corporation Limited,Changchun 130013)

机构地区：[1]中国第一汽车股份有限公司研发总院,长春130013

出　　处：《汽车文摘》2024年第11期58-62,共5页Automotive Digest

摘　　要：针对冗余制动系统选型方法空缺的现状,依据制动系统性能要求,提出了一种冗余制动系统相关零部件包括电机、柱塞泵和电磁阀的设计校核方法。该方法通过汽车动力学理论计算将减速度指标转化为制动液压指标,并通过制动系统的需液量特性将制动液压指标转化为排液量指标,基于响应时间要求将排液量指标转化为流量指标,进而确定电磁阀方案是否满足要求。基于电机和柱塞泵的结构和工作原理搭建冗余制动系统AMESim仿真模型,通过对仿真结果的分析确定电机和柱塞泵方案是否满足要求。根据某车型整车参数和制动器参数,利用该方法进行了冗余制动系统的方案校核,该方法能够为冗余制动系统的方案选型提供支撑。For the vacancy of the redundant braking system selection method,according to the performance requirements of the braking system,a design and verification method for the relevant components of the redundant braking system including motor,piston pump and solenoid valve was proposed.In this method,the deceleration index is transformed into the brake fluid pressure index through the theoretical calculation of vehicle dynamics,and the brake fluid pressure index is transformed into the liquid volume index through the pressure-volume characteristics of the braking system,and the liquid volume index is transformed into the flow index based on the response time requirement,so as to determine whether the solenoid valve scheme meets the requirements.Based on the structure and working principle of the motor and piston pump,the AMESim simulation model of the redundant braking system was established,and the simulation results were analyzed to determine whether the motor and piston pump scheme met the requirements.According to the vehicle parameters and brake parameters of a certain vehicle,the scheme check of the redundant braking system is carried out by using this method,which could provide support for the scheme selection of the redundant braking system.

关 键 词：冗余制动 电磁阀 电机 选型计算 

分 类 号：U463.55[机械工程—车辆工程]