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Apparatus and method for active vibration control of hybrid vehicle

An active vibration control, hybrid electric technology, used in hybrid vehicles, motor vehicles, transportation and packaging, etc., can solve the difficulty of distinguishing engine vibration components, control efficiency and energy management effects, inability to frequency comprehensive active control, etc. problems, achieve accurate and efficient active control, reduce energy consumption, and prevent ineffective control

Active Publication Date: 2017-08-04
HYUNDAI MOTOR CO LTD
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Problems solved by technology

[0009] However, it is difficult to distinguish the vibration component of the engine from that of the noise, and unnecessary overcontrol of the vibration has a negative impact on control efficiency and energy management
Furthermore, in traditional frequency analysis, since only parametric signals relative to a specific frequency can be created and synchronized, there is no comprehensive and active control over other frequencies that may be additionally generated

Method used

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  • Apparatus and method for active vibration control of hybrid vehicle
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  • Apparatus and method for active vibration control of hybrid vehicle

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Embodiment Construction

[0032] In the following detailed description, only certain exemplary embodiments of the present invention are shown and described, simply by way of illustration. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

[0033] Throughout the specification and appended claims, unless expressly stated to the contrary, the term "comprising" and variations such as "comprises" or "comprises" should be understood to imply the inclusion of stated elements but not the exclusion of any other elements.

[0034] Like reference numerals refer to like elements throughout the specification.

[0035] It should be understood that the term "vehicle" or "vehicular" or other similar terms as used herein generally includes motor vehicles, including, for example, hybrid vehicles, plug-in hybrid electric vehicles, and other alternative fuel vehicles (such as those derived...

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Abstract

The invention relates to an apparatus and a method for active vibration control of a hybrid vehicle. The method can include: detecting an engine speed or a motor speed; selecting a reference angle signal based on the position information of a motor or an engine; setting a period of the fast Fourier transform and performing a fast Fourier transform corresponding to the period of the fast Fourier transform from the reference angle signal to the engine rotational speed or the motor rotational speed; according to the engine speed and engine load, setting a reference spectrum; extracting a vibration component to be removed by comparing the signal and the reference spectrum obtained by performing the fast Fourier transform on the engine speed; synthesizing the vibration component to be removed according to the frequency, and performing inverse fast Fourier transform; according to the engine speed and engine load to determine the amplitude ratio, based on the engine speed, determining the adjustable ratio; and based on the information about the amplitude ratio, the adjustable ratio and the engine torque, performing the active vibration control for each frequency.

Description

[0001] Cross References to Related Applications [0002] This application claims priority and benefit from Korean Patent Application No. 10-2015-0177478 filed in the Korean Intellectual Property Office on December 11, 2015, the entire contents of which are incorporated herein by reference. technical field [0003] The present invention relates to an apparatus and method for active vibration control of a hybrid electric vehicle. More particularly, the present invention relates to an apparatus and method for active vibration control of a hybrid electric vehicle that controls unstable vibration by analyzing a frequency spectrum via Fast Fourier Transform (FFT). Background technique [0004] A hybrid vehicle is a vehicle that utilizes two or more different kinds of power sources, usually a vehicle driven by an engine that burns fuel to obtain drive torque and an electric motor that uses battery power to obtain drive torque. [0005] When the vehicle is driven by two power sourc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/20B60W10/06B60W20/00
CPCB60W10/06B60W20/00B60W30/20B60W2510/0638B60W2510/0657B60W2510/081Y02T10/62
Inventor 金成在鱼祯秀
Owner HYUNDAI MOTOR CO LTD
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