The invention relates to a gear shifting method and a hybrid power system. The gear shifting method is used for the hybrid power system, the hybrid power system comprises an engine used for generating engine torque, a motor used for providing motor torque, a transmission and a clutch, the motor is in rigid connection with the transmission to provide the motor torque, the clutch is located between the engine and the motor to selectively connect or disconnect transmission of the engine torque of the engine, and the gear shifting method includes the following steps that when a preset condition is met, the motor torque of the motor and the engine torque of the engine are first changed in a manner tending to zero, and the clutch is switched from an engaged state to an open state when the motor torque is changed to zero and the engine torque continues to be changed to zero after the motor torque is changed to zero.
本发明涉及换挡方法和混合动力系统。该换挡方法用于混合动力系统,所述混合动力系统包括用于产生发动机扭矩的发动机、提供电动机扭矩的电动机、变速器和离合器,其中,所述电动机与所述变速器刚性连接以提供所述电动机扭矩,所述离合器位于所述发动机和所述电动机之间以选择性地连接或断开所述发动机的所述发动机扭矩的传递,其中,所述换挡方法包括以下步骤:在满足预定条件下,先使所述电动机的所述电动机扭矩和所述发动机的所述发动机扭矩以趋向于零的方式变化,并且在所述电动机扭矩变化到零时所述离合器从接合状态切换为打开状态且之后所述发动机扭矩继续变化直到零。
Gear shifting method and hybrid power system
换挡方法和混合动力系统
2022-01-04
Patent
Elektronische Ressource
Chinesisch
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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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