Control method of dual-motor driving system, storage medium and new energy automobile

A dual-motor drive and control method technology, applied in motor control, speed/torque control of multiple motors, control systems, etc., can solve problems such as excessive motor temperature rise, power output limitation, and motor temperature alarms. Reasonable control, the effect of reducing the probability of temperature alarm

Pending Publication Date: 2022-06-24
BEIQI FOTON MOTOR CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] Due to its own characteristics, the driving motor system of new energy vehicles will generate high energy accumulation during the acceleration and deceleration process of the vehicle. Fr

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  • Control method of dual-motor driving system, storage medium and new energy automobile
  • Control method of dual-motor driving system, storage medium and new energy automobile

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[0014] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

[0015] The following describes the control method, storage medium, and new energy vehicle of the dual-motor drive system according to the embodiments of the present invention with reference to the accompanying drawings.

[0016] figure 1 It is a flowchart of a control method of a dual-motor drive system according to an embodiment of the present invention.

[0017] In an embodiment of the present invention, the dual-motor drive system includes a first motor and a second motor.

[0018] ...

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Abstract

The invention discloses a control method of a dual-motor driving system, a storage medium and a new energy automobile. The dual-motor driving system comprises a first motor and a second motor, and the method comprises the steps that the target torque of the dual-motor driving system is acquired, and the first temperature of the first motor and the second temperature of the second motor are acquired; performing torque distribution on the first motor and the second motor according to the first temperature, the second temperature and the target torque; according to the torque distribution result and the efficiency MAP of the first motor and/or the second motor, a torque output curve of the first motor and/or the second motor is obtained through optimization calculation; and controlling the first motor and/or the second motor to output torque according to the torque output curve. According to the method, the operation efficiency of the dual-motor system when the working condition changes can be improved, and meanwhile, limitation of energy accumulation on output of the motors is avoided.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to a control method of a dual motor drive system, a storage medium and a new energy vehicle. Background technique [0002] The power system of the new energy vehicle adopts a system with independent output of dual motors, which can give full play to the optimal matching under the requirements of road conditions and improve the utilization rate of the high-efficiency area of ​​the motor system. Especially for the synchronous motor and asynchronous motor dual-motor system, it can give full play to the advantages of the high-efficiency distribution of the synchronous motor in the low-speed area and the distribution of the asynchronous motor in the high-speed area. According to different vehicle operating conditions, the energy shunt control can be performed to improve the electric drive system. improve the operating efficiency and reduce the energy consumption of the whole ...

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Application Information

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IPC IPC(8): H02P6/04H02P5/46H02P29/60H02P29/032
CPCH02P6/04H02P5/46H02P29/60H02P29/032
Inventor 袁世鹏郭凤刚胡如现张艳超
Owner BEIQI FOTON MOTOR CO LTD
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