Hybrid electric vehicle and its active vibration reduction control method and device
A hybrid vehicle, active vibration reduction technology, applied in hybrid vehicles, power units, motor vehicles, etc., can solve problems such as affecting ride comfort, and achieve high timeliness, accurate action time, and effective vibration reduction effect.
Active Publication Date: 2020-08-25
BYD CO LTD
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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.
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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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A hybrid electric vehicle and an active vibration reduction control method and apparatus therefor. The method comprises the following steps: when determining, according to an acceleration sensor signal and a crankshaft sensor signal, that a hybrid electric vehicle is in a driving growling working condition (S1); calculating a target current value according to a rotation speed, a vibration period and a vibration amplitude of an engine (S2); also acquiring a vehicle speed sensor signal of the hybrid electric vehicle (S3); correcting the target current value according to the vehicle speed sensor signal and the rotation speed of the engine so as to obtain a first corrected current value (S4); acquiring a camshaft sensor signal, and acquiring a delay time according to the camshaft sensor signal (S5); and when the delay time is reached, applying the first corrected current value to an actuator so as to perform vibration reduction control on the hybrid electric vehicle (S6).
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 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, 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 ...
Claims
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IPC IPC(8): B60K5/12F16F15/02
CPCB60K5/12F16F15/02F16F2228/066B60W20/00B60W30/20B60W40/105B60W40/107
Inventor 吴圣黄毅
Owner BYD CO LTD