Hybrid electric vehicle and its active vibration reduction control method and device

Abstract

The invention discloses a hybrid electric vehicle and its active vibration reduction control method and device. The method includes the following steps: when judging that the vehicle is in an idling charging condition according to the vehicle speed sensor signal and the crankshaft sensor signal, according to the engine speed and Calculate the target current value based on the vibration cycle and piston movement position, and communicate with the vehicle controller to obtain the charging power of the hybrid vehicle, and correct the target current value according to the charging power to obtain the first corrected current value; according to the camshaft sensor signal The delay time is obtained; when the delay time is reached, the first corrected current value is applied to the actuator, so as to control the vibration of the hybrid electric vehicle. In this way, the active vibration reduction control under the idling charging condition is realized, which has high timeliness, and the effective time of the vibration reduction and noise reduction control is pre-judged by using the camshaft sensor signal, and the vibration reduction effect is more effective.

Description

Technical field [0001] The present invention relates to the technical field of automobiles, in particular to an active damping control method of a hybrid electric vehicle, an active damping control device of a hybrid electric vehicle, and a hybrid electric vehicle with the device. Background technique [0002] With the advancement of social technology, people’s requirements for comfort are getting higher and higher, and ride comfort has become an important indicator of car performance. Among them, the main factor affecting ride comfort is car vibration, which causes car vibration. There are many reasons for this, and engine vibration is one of the main reasons that deserves attention. Engine vibration is mainly caused by the combustion in the engine cylinder and the reciprocating motion of the piston. This vibration is transmitted to the frame through the engine suspension system, and then to the cab, affecting the comfort of riding. [0003] In order to improve ride comfort, a re...

AI Technical Summary

Problems solved by technology

The engine vibration is mainly caused by the combustion in the engine cylinder and the reciprocating motion of the piston. The vibration is transmitted to the frame through the engine suspension system, and then transmitted to the cab, affecting the comfort of the ride.

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