The application relates to a vehicle brake boosting system, a control method and device thereof and computer equipment. The vehicle brake boosting system comprises a boosting pressure regulating unitbeing used for being mechanically connected with a vehicle power transmission shaft, converting vehicle inertia energy into a boosting hydraulic pressure and outputting the boosting hydraulic pressureto a vehicle brake system and an electronic control unit for acquiring brake pedal displacement, vehicle speed and vehicle driving motor regeneration power, determining a target hydraulic pressure ofa boosting pressure regulating unit according to the displacement of the brake pedal, determining a boosting hydraulic pressure according to the vehicle speed and the vehicle driving motor regeneration power, determining a compensation hydraulic pressure of the boosting pressure regulating unit according to the target hydraulic pressure and the boosting hydraulic pressure, and controlling the boosting pressure regulating unit to regulate the pressure according to the compensation hydraulic pressure. Part of brake boosting hydraulic pressure can be provided through vehicle inertia; when the boosting hydraulic pressure cannot reach the target hydraulic pressure, the boosting pressure regulating unit is controlled to output the compensation hydraulic pressure for braking; and even if a driving motor of a boosting system fails, the good brake efficiency can be provided, and brake safety is improved.
本申请涉及一种车辆制动助力系统、控制方法、装置及计算机设备。所述车辆制动助力系统包括:助力调压单元,用于与车辆动力传递轴机械连接,将车辆惯性能转化为助力液压输出至车辆制动系统;电子控制单元,用于获取制动踏板的位移、车速及车辆驱动电机再生功率,根据制动踏板的位移确定助力调压单元目标液压,根据车速及车辆驱动电机再生功率确定助力液压,并根据目标液压及助力液压确定助力调压单元的补偿液压,还用于根据补偿液压控制助力调压单元调压。本发明能够利用车辆惯性提供一部分制动助力液压,在助力液压达不到目标液压时,再控制助力调压单元输出补偿液压进行制动,即使助力系统驱动电机失效时也能提供较好的制动效能,提高制动安全性。
Vehicle brake boosting system, control method and device thereof and computer equipment
车辆制动助力系统、控制方法、装置及计算机设备
2020-05-12
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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