GEAR SHIFT PROCESS CONTROL METHOD AND DEVICE FOR HYBRID VEHICLE

WIPO Patent Application WO/2021/035402

A1

A gear shift process control method and device for a hybrid vehicle. The hybrid vehicle comprises an engine (310), a drive motor (322), and a clutch (321) provided between the engine (310) and the drive motor (322). Said method comprises: controlling the drive motor (322) to adjust the speed of the drive motor (322) to a target gear rotational speed, and controlling an actuator to engage with a target gear (step S410); acquiring a target rotational speed and the current rotational speed of the engine (310), the target rotational speed being the target gear rotational speed of the drive motor (322) (step S420); according to the target rotational speed and the current rotational speed, calculating a compensation torque of the drive motor (322) and a target torque of the clutch (321) (step S430); and controlling the torque of the drive motor (322) and the torque of the clutch (321) respectively on the basis of the compensation torque and the target torque, so as to make the rotational speed of the engine (310) and the rotational speed of the drive motor (322) tend to be consistent (step S440). In this way, the rotational speed of the engine can be adjusted precisely and quickly during gear shift of the hybrid vehicle.

LI ZHIMING (CN)
KE HAO (CN)
CHEN XIN (CN)
LU WENJIAN (CN)

PCT/CN2019/102290

March 04, 2021

August 23, 2019

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SCHAEFFLER TECHNOLOGIES AG (DE)
LI ZHIMING (CN)

B60W10/08; B60W10/06; B60W20/40

CN101830221A	2010-09-15
CN103260982A	2013-08-21
US20070278022A1	2007-12-06
CN104627183A	2015-05-20
CN104859638A	2015-08-26
CN105216788A	2016-01-06
CN109532816A	2019-03-29

LINDA LIU & PARTNERS (CN)

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