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

A hybrid electric vehicle, active vibration reduction technology, applied in the automotive field, can solve problems affecting ride comfort, etc., and achieve high timeliness, accurate action time, and effective vibration reduction effect

Active Publication Date: 2022-04-15
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

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0034] The following describes the active vibration reduction control method for a hybrid electric vehicle, the active vibration reduction control device for a hybrid electric vehicle and the hybrid electric vehicle with the device according to the embodiments of the present invention with reference to the accompanying drawings.

[0035] figure 1 is a flow chart of an active vibration reduction control method for a hybrid electric vehicle according to an embodiment of the present invention. Among them, hybrid electric vehicles i...

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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 hybrid electric vehicle is in the driving roaring condition according to the acceleration sensor signal and the crankshaft sensor signal, according to the engine's The target current value is calculated based on the rotational speed, vibration period and vibration amplitude, and the vehicle speed sensor signal of the hybrid electric vehicle is obtained at the same time. Correct the target current value according to the vehicle speed sensor signal and the rotational speed of the engine to obtain the first corrected current value; obtain the ignition coil signal of the engine, and when the engine is in the ignition state, according to the first corrected current value and the ignition coil signal output with The drive signal at working time is sent to the drive circuit to perform active vibration reduction control on the hybrid electric vehicle. In this way, the active vibration reduction control under driving roaring conditions is realized, which has high timeliness, and the effective time of vibration reduction and noise reduction is directly obtained by using the ignition coil signal, and the vibration reduction effect is more effective.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an active vibration reduction control method for a hybrid electric vehicle, an active vibration reduction control device for a hybrid electric vehicle and a hybrid electric vehicle with the device. Background technique [0002] With the advancement of social technology, people have higher and higher requirements for comfort, and ride comfort has become an important indicator to measure the performance of cars. Among them, the main factor affecting ride comfort is car vibration, and car vibration There are many reasons for this, and engine vibration, as one of the main reasons, deserves attention. 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 ride comfort. [0003] In order t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60G17/017B60G17/016B60W10/06B60W30/20
CPCB60W10/06B60W20/00B60W30/20B60G17/016B60G17/017B60W2520/105B60W2510/0638
Inventor 吴圣黄毅
Owner BYD CO LTD
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