The invention discloses a driving torque control system and method suitable for a new energy commercial vehicle, relates to the field of new energy vehicles, and solves the problems that the maximum torque is limited, transmission system components are easy to break and break and the like when the torque is suddenly changed in the conventional torque control method. The system comprises a gear processing module, an accelerator pedal processing module, a brake pedal processing module, a system maximum capacity module, a fault processing module, a driving torque control module, a torque arbitration module and a signal output module. According to the method, an accelerator pedal opening signal data acquisition intensive mode is optimized, so that data query in a software processing process is reduced, and uncovered parameters are calculated by adopting a line difference value, so that the data acquisition and processing smoothness is ensured. And a successive filtering algorithm is adopted to prevent sudden change of torque output. The torque smooth control is added, the torque increase rate of the required torque is limited, the phenomenon of tooth knocking Clunk is prevented, the bad riding feeling is avoided, and the service life of a transmission system is prevented from being shortened.
一种适用于新能源商用车驱动扭矩控制系统及控制方法,涉及新能源汽车领域,解决现有扭矩控制方法在出现扭矩突变时,最大扭矩受限,易出现传动系统部件易断裂故障等问题,包括挡位处理模块、油门踏板处理模块、制动踏板处理模块、系统最大能力模块、故障处理模块、驱动扭矩控制模块、扭矩仲裁模块和信号输出模块,本发明方法中,加速踏板开度信号数据采集密集方式优化,减少软件处理过程中的数据查询,提高运算速率,未覆盖的参数采用线差值计算,保证数据采集及处理平顺性。采用逐次滤波算法,防止扭矩输出发生突变。增加扭矩平滑控制,对需求扭矩进行转矩增加率进行限制,防止“敲齿Clunk”现象发生,避免产生不良乘坐感受和降低传动系统寿命。
Driving torque control system and method suitable for new energy commercial vehicle
一种适用于新能源商用车驱动扭矩控制系统及控制方法
2021-04-16
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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