Hybrid vehicle, and shifting control method and system thereof

Abstract

The invention discloses a hybrid vehicle, and a shifting control method and system thereof. The hybrid vehicle includes an engine, a power motor, a power battery, a transmission and an auxiliary motorconnected to the engine; The shifting control method includes the following steps: obtaining the speed of the hybrid vehicle through a transmission control unit when the engine is operated, and obtaining the rotating speed of the engine through an engine control unit; judging whether an assisting shifting condition is met according to the speed of the hybrid vehicle and the rotating speed of theengine; and generating, by a whole vehicle control unit, an assisting shifting instruction if the assisting shifting condition is met, and sending the assisting shifting instruction to an auxiliary motor control unit so as to control the auxiliary motor to output torque to the engine and accelerate the gear switching of the transmission. According to the shifting control method, the shifting timeof the hybrid vehicle can be effectively shortened, the driving experience of users can be enhanced, and the service life of a clutch can be prolonged.

Description

technical field [0001] The invention relates to the technical field of hybrid electric vehicles, in particular to a hybrid electric vehicle shift control method, a non-transitory computer-readable storage medium, a hybrid electric vehicle shift control system and a hybrid electric vehicle. Background technique [0002] During the shifting process of the transmission, the engine speed must rise or fall to reach the speed corresponding to the target gear. This process is generally realized through the interaction between the clutch and the engine. The duration is relatively long, and the user will generally feel it clearly. Momentum weakens. Moreover, during the gear shifting process, the friction work of the clutch is relatively large, thereby accelerating the wear of the clutch and reducing the service life of the clutch. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the above-mentioned technologies at least to a c...

AI Technical Summary

Problems solved by technology

[0002] During the shifting process of the transmission, the engine speed must rise or fall to reach the speed corresponding to the target gear. This process is generally realized through the interaction between the clutch and the engine. The duration is relatively long, and the user will generally feel it clearly. Weak power

Moreover, in the process of shifting, the friction work of the clutch is relatively large, which will accelerate the wear of the clutch and reduce the service life of the clutch.

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