The invention discloses a torque control method for power-to-unpowered upshift, which comprises the following steps of: 1, when torque rise intervenes and power-to-unpowered upshift occurs, performing torque judgment at the first time, and judging whether power conversion occurs in the upshift process according to the change rate of the torque and the minimum torque point; secondly, if power conversion occurs, whether torque increasing is needed or not is judged according to the gear shifting process; and 3, according to the rotating speed when the power-to-unpowered upshift occurs, the specific torque increasing time is judged, the higher the rotating speed is, the earlier the torque increasing intervenes in the speed regulation stage, through the torque increasing, part of the anti-supporting torque of the engine is counteracted, the potential energy of the engine due to the reduction of the rotating speed can be reduced, and the turbine can increase the rotating speed in time at the last stage of the rotating speed to eliminate pause. According to speed ratio change time and torque increase intervention, the falling trend of the rotating speed of the engine is reduced, the speed ratio change time is prolonged, the speed ratio gear shifting time is 0.4 s or above, and the subjective feeling of gear shifting is more gentle.
本发明公开了一种动力转无动力升档的扭矩控制方法,所述方法如下:一、增扭介入时,在发生动力转无动力时,在第一时间进行扭矩判断,根据扭矩的变化率和最小扭矩点判断是否在升档过程中发生了动力转换;二、如果发生动力转换,则根据换挡的进程判断是否需要增扭;三、根据发生动力转无动力升档时的转速,判断具体的增扭时机,转速越高,增扭在调速阶段介入的越早,通过增扭,将发动机自身反托扭矩抵消一部分,自身因转速下降的势能就会减小,使涡轮可以在转速末期及时的把转速提起来,消除顿挫。本发明根据速比变化时机,增扭介入,将发动机自身转速下跌趋势减小,拉长速比变化时间,速比换挡时间在0.4s以上,换挡的主观感受更加平缓。
Torque control method for converting power into unpowered upshift
动力转无动力升档的扭矩控制方法
2023-12-15
Patent
Electronic Resource
Chinese
IPC: | 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 |
Power upshift control strategy of torque-assist AMT
British Library Online Contents | 2016
|Torque control method in upshift process and terminal equipment
European Patent Office | 2022
|