Title:
HYBRID VEHICLE AND ENGINE STOPPING CONTROL METHOD AND SYSTEM THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/062881
Kind Code:
A1
Abstract:
Disclosed are a hybrid vehicle and an engine stopping control method and system thereof. The control method comprising the following steps: a VCU determining whether an engine meets a preset stopping condition (S1); the VCU sending a BSG pulling-stopping engine command to a BSG motor controller if the engine meets the preset shutdown condition (S2); the BSG motor controller receiving the BSG pulling-stopping engine command, and outputting a negative torque to the engine in accordance with the BSG pulling-stopping engine command in order to pull and stop the engine (S3). The method can recover excess energy of the engine by means of performing reverse pulling of a BSG motor when the engine shuts down and stops, so that the engine is stopped from working as early as possible, thus reducing the working time of the engine, and achieving the purpose of improving the economy and NVH performance of the entire vehicle.
Inventors:
WANG CHUNSHENG (CN)
XU BOLIANG (CN)
LUO YONGGUAN (CN)
XIONG WEI (CN)
LIU XUELI (CN)
XU BOLIANG (CN)
LUO YONGGUAN (CN)
XIONG WEI (CN)
LIU XUELI (CN)
Application Number:
PCT/CN2018/108539
Publication Date:
April 04, 2019
Filing Date:
September 29, 2018
Export Citation:
Assignee:
BYD CO LTD (CN)
International Classes:
B60W10/08
Foreign References:
| CN106114495A | 2016-11-16 | |||
| CN104859634A | 2015-08-26 | |||
| CN101181897A | 2008-05-21 | |||
| CN105818808A | 2016-08-03 | |||
| CN101367381A | 2009-02-18 | |||
| US20100144487A1 | 2010-06-10 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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