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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 hybrid electric vehicles, power devices, control devices, etc., can solve problems affecting ride comfort and other issues

Active Publication Date: 2019-12-20
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

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K5/12B60W20/00B60W40/105
CPCB60L58/13B60K5/12B60W20/00B60W40/105B60W2510/06B60W2520/10B60W2710/223B60W2050/0043B60W2050/0014B60W50/06B60L50/60Y02T90/16Y02T10/70
Inventor 吴圣黄毅陈然
Owner BYD CO LTD
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