HYBRID ELECTRIC VEHICLE AND ACTIVE VIBRATION DAMPING CONTROL METHOD AND DEVICE THEREFOR

WIPO Patent Application WO/2018/133807

A1

A hybrid electric vehicle (1000) and an active vibration damping control method and device (100) therefor. The method comprises the following steps: when it is determined that a hybrid electric vehicle (1000) is in an idle charging working condition according to a vehicle speed sensor signal and a crankshaft sensor signal, calculating a target current value (A) according to a revolving speed and a vibration period of an engine and the motion position of a piston, communicating with a vehicle controller so as to acquire the charging power of the hybrid electric vehicle (1000), and correcting the target current value (A) according to the charging power to obtain a first corrected current value (A'); acquiring a delay time according to a camshaft sensor signal; and when the delay time is reached, applying the first corrected current value (A') to an actuator (21) so as to carry out vibration damping control on the hybrid electric vehicle (1000). Therefore, the present invention achieves active vibration damping control under an idle charging working condition, has a relatively high timeliness, and by predetermining the effective time of vibration damping and noise reduction control by means of a camshaft sensor signal, has a more effective vibration damping effect.

WU SHENG (CN)
HUANG YI (CN)
CHEN RAN (CN)

PCT/CN2018/073159

July 26, 2018

January 18, 2018

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BYD CO LTD (CN)

B60W50/06; B60K5/12

CN1684014A	2005-10-19
CN104428560A	2015-03-18
CN203532609U	2014-04-09
CN102401077A	2012-04-04
CN106080451A	2016-11-09
CN104340220A	2015-02-11
US6254069B1	2001-07-03

UNITALEN ATTORNEYS AT LAW (CN)

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