关键词: 汽车爆胎, 附加横摆力矩, 预估计算, 验证

Abstract:

Based on the dynamics analysis of tire blow-out vehicle, an estimated calculation model of additional yaw torque leading by tire blow-out was set up. According to the relativity between the opening duration of inflow valve of the EHB (electric-hydraulic brake system) and the pressure of the brake wheel cylinder, the estimated tire blow-out additional yaw torque was transformed into opening duration of the inflow valve, and the anti tire blow-out additional yaw torque to balance the vehicle was generated by controlling the open duration of different braking cylinders.A test system was designed, and the results show that the anti yaw torque for balancing the tire blow-out vehicle can be estimated by the calculation model, which provides a precondition to improve the response ability of the emergency braking system and precision traveling track control of tire blow-out vehicle.

Key words: tire blow-out, additional yaw torque, estimated calculation, verification