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

Abstract

A hybrid vehicle and an active vibration damping control method therefor and a device (100), the method comprising the following steps: when determining, according to a vehicle speed sensor signal and a crankshaft sensor signal, that a hybrid vehicle is in an idling charging working state, calculating a target current value (A) according to the rotation speed and a vibration period of an engine, while communicating with a controller of the entire vehicle so as to obtain the charging power of the hybrid vehicle. Correct the target current value (A) according to the charging power of the hybrid vehicle so as to obtain a first corrected current value (A'); obtain an ignition coil signal of the engine, and when the engine is in an ignition state, output a drive signal having work time to a drive circuit (21) according to the first corrected current value (A') and the ignition coil signal to perform active vibration damping control on the hybrid vehicle. Thus, active vibration damping control is achieved in an idling charging working state with great timeliness, and the ignition coil signal is used to directly obtain an effective time for vibration damping and noise reducing, thus improving vibration damping efficiency.

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.

Images