The invention relates to the technical field of vehicles, and particularly discloses a control method of a hydraulic retarder system, the hydraulic retarder system and a vehicle. According to the control method of the hydraulic retarder system, running parameters of the vehicle are obtained, and the actual demand braking torque of the vehicle is determined based on the running parameters of the vehicle; acquiring the temperature of hydraulic oil; correcting the actual required brake torque based on the temperature of the hydraulic oil to obtain a corrected brake torque; the maximum available braking torque of the hydraulic retarder is obtained; when the corrected brake torque is not larger than the maximum available brake torque, the hydraulic retarder outputs the corrected brake torque, the hydraulic retarder directly pumps hydraulic oil into the hydraulic retarder through an oil passing pump so as to reduce the vehicle speed and guarantee timely response, so that advanced control is not needed, the control logic can be simplified, and the control efficiency is improved. And the finally output brake torque is determined according to the specific running parameters of the vehicle and the temperature of hydraulic oil, and can be highly matched with the current working condition of the vehicle, so that the driving safety can be effectively ensured.
本发明涉及车辆技术领域,具体公开了一种液力缓速器系统的控制方法、液力缓速器系统及车辆,该液力缓速器系统的控制方法通过获取车辆的行驶参数,基于车辆的行驶参数确定车辆的实际需求制动扭矩;获取液压油的温度;基于液压油的温度对实际需求制动扭矩进行修正并得到修正制动扭矩;获取液力缓速器的最大可用制动扭矩;当修正制动扭矩不大于最大可用制动扭矩时,液力缓速器输出修正制动扭矩,液力缓速器通过过油泵直接将液压油泵入液力缓速器以降低车速保证响应及时,从而无需进行提前控制,能够简化控制逻辑,并且其最终输出的制动扭矩依据车辆具体的行驶参数以及液压油的温度而定,与车辆当前的工况可高度匹配,能够有效保证驾乘安全。
Control method of hydraulic retarder system, hydraulic retarder system and vehicle
一种液力缓速器系统的控制方法、液力缓速器系统及车辆
11.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
Diagnostic method and device of hydraulic retarder and hydraulic retarder system
Europäisches Patentamt | 2023
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