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

A hybrid electric vehicle, active vibration reduction technology, applied in the direction of power device, transportation and packaging, jet propulsion device, etc., can solve the problems affecting ride comfort and so on

Active Publication Date: 2020-05-19
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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

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Embodiment Construction

[0035] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0036] The following describes the active damping control method of a hybrid electric vehicle, the active damping control device of the hybrid electric vehicle and the hybrid electric vehicle provided with the device according to the embodiments of the present invention with reference to the accompanying drawings.

[0037] figure 1 It is a flowchart of an active vibration reduction control method for a hybrid electric vehicle according to an embodiment of the present invention. Among them, hybrid vehicl...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K5/12B60R16/023
CPCB60K5/1283B60R16/0232B60K5/12B60R16/023B60W50/06
Inventor 吴圣黄毅陈然
Owner BYD CO LTD
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