摘要
针对防抱制动系统（ABS）低温环境下线性增压失效问题,通过阀芯的受力分析,推导了阀口开度自稳定条件;利用电磁场和流场的数值模拟,分析了环境温度对增压阀电磁力和流体作用力的影响;结果表明,要满足阀口开度自稳定条件,确保线性增压,ABS的可控温度区间为-17~120℃;利用HCU性能试验台对ABS的实测验证了仿真结果。
Aiming at the problem of the failure in maintaining linear pressure-rise in ABS under low temperature, a self-stabilization condition for the opening of booster valve is derived through the force analysis of valve core. Numerical simulations on both electromagnetic field and flow field are conducted to analyze the effects of ambient temperature on the electromagnetic and hydraulic forces. The results show that for meeting the self-stabilization condition of valve opening and hence assuring linear pressure-rise in ABS, the controlled temperature range should be -17℃ - 120℃, which is verified by a ABS test on HCU performance tester.
出处
《汽车工程》
EI
CSCD
北大核心
2015年第5期520-525,共6页
Automotive Engineering
基金
国家科技支撑计划(2014BAF02B00)资助
关键词
ABS
增压阀
线性增压
可控温度区间
ABS
booster valve
linear pressure rise
controlled temperature range
