The invention discloses a transmission starting control method and device, a transmission control unit and a storage medium. According to the method, in the early stage of starting, control is conducted through power of an engine and torque of a clutch, and a whole vehicle rapidly conducts power response; in the middle stage of starting, active control over engine torque reduction is applied, an engine rotating speed is controlled to be close to a target engine rotating speed, clutch torque control is matched, the rotating speed of a transmission input shaft is stably increased, and the whole vehicle is stably accelerated; and in the later stage of starting, torque reduction of the engine is not controlled any more, and the rotating speed of the engine and the rotating speed of the input shaft are synchronous through clutch torque control, so the whole vehicle stably runs at high speed. In the whole starting process, a current starting actual accelerator and an actual engine rotating speed are obtained, the actual engine rotating speed and the target rotating speed are synchronously compared, and therefore, the target parameters of the clutch are updated, and preparation is made for follow-up starting optimization. According to the invention, starting performance has the advantages of being fast in power response, stable in acceleration and consistent in performance.
本发明公开了一种变速器起步控制方法、装置、变速器控制单元及存储介质,该方法在起步前期,依靠发动机本身动力及离合器扭矩控制,使整车快速进行动力响应;在起步中期,申请主动控制发动机降扭,控制发动机转速在发动机目标转速附近,再配合离合器扭矩控制,变速器输入轴转速平稳上升,使整车平稳的提速;在起步后期,不再控制发动机降扭,依靠离合器扭矩控制,保证发动机转速与输入轴转速同步,使整车平稳进入高速行驶。在整个起步过程中,获得当前起步实际油门和发动机实际转速,对发动机实际转速与目标转速进行同步比较,从而更新离合器目标参数,为后续起步优化做准备。本发明的起步性能具有动力响应快、提速平稳、性能一致的优点。
Transmission starting control method and device, transmission control unit and storage medium
变速器起步控制方法、装置、变速器控制单元及存储介质
2022-01-04
Patent
Elektronische Ressource
Chinesisch
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 |
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