The invention discloses a braking system matching analysis method and system considering an active braking function. The method comprises the steps: calculating the braking torque needed by locking ofa front axle and a rear axle according to the dynamic axle load transfer of a whole vehicle at a certain deceleration, obtaining the locking pressure through calculation through the parameters of a brake, and completing evaluation of the braking locking pressure of the whole vehicle; building a brake system hydraulic model in Amesim, and calculating the flow of a pump through the rotating speed of a motor, the displacement of an eccentric wheel and the displacement of a plunger; calculating and obtaining the volume of brake fluid entering the brake by calculating the pressure difference between the two ends of the electromagnetic valve and the length of the brake pipeline to calculate the wheel cylinder pressure of the brake; and obtaining a TTL simulation curve through brake wheel cylinder pressure iterative calculation: taking the brake wheel cylinder pressure calculated in the S3 in the previous step length as the pressure difference input of the next step length, and obtaining theTTL simulation curve through continuous iterative calculation for matching analysis of a brake system.
本发明公开了一种考虑主动制动功能的制动系统匹配分析方法和系统,根据整车在一定减速度下的动态轴荷转移,来计算前后轴抱死所需制动力矩,通过制动器参数,从而计算得到抱死压力,完成整车制动抱死压力评估;在Amesim中搭建制动系统液压模型,通过电机转速、偏心轮和柱塞位移来计算泵的流量;通过计算电磁阀两端压差和制动管路的长度来计算获取进入到制动器内制动液体积来计算制动器轮缸压力;通过制动器轮缸压力迭代计算获得TTL的仿真曲线:将上一步长通过步骤S3计算的制动器轮缸压力作为下一步长的压力差输入,通过不断迭代计算获得TTL的仿真曲线,用于制动系统的匹配分析。
Braking system matching analysis method and system considering active braking function
一种考虑主动制动功能的制动系统匹配分析方法和系统
2020-11-13
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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