Dual-rotor wheel hub motor for four-wheel drive electric automobile and power transmission method of dual-rotor wheel hub motor

A technology of electric vehicles and four-wheel drive, applied in the direction of electric components, electrical components, electromechanical devices, etc., can solve problems such as research vacancies, achieve the effects of optimizing the motor structure, improving stability, and realizing torque coupling

Active Publication Date: 2015-11-04
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the research hotspots at home and abroad are mainly focused on using the dual-rotor motor as a power coupling device for hybrid vehicles, using it to replace traditional gearboxes, starters, and generators as a continuously variable transmission. Research on in-wheel motors is still vacant

Method used

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  • Dual-rotor wheel hub motor for four-wheel drive electric automobile and power transmission method of dual-rotor wheel hub motor

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Embodiment Construction

[0049] Below in conjunction with accompanying drawing, the present invention will be further described:

[0050] A dual-rotor hub motor for a four-wheel-drive electric vehicle, including a motor unit and a planetary gear mechanism, the motor unit and the planetary gear mechanism are connected through a clutch, and the motor unit and the planetary gear mechanism are both located in the casing 17;

[0051] The motor unit includes an inner rotor 4, an outer rotor 1 and a stator bracket 18, one end of the stator bracket 18 is fixedly connected to one end of the casing 17, the inner rotor 4 is set on the inner central axis of the stator bracket 18, and rotates with the stator bracket 18 connected, the outer rotor 1 is rotatably connected to the outside of the stator bracket 18;

[0052] The outer wall of the stator support 18 is provided with a stator outer winding 2, the stator outer winding 2 is electrically connected to the second DC / AC converter 16, and the inner wall of the st...

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Abstract

The invention provides a dual-rotor wheel hub motor for a four-wheel drive electric automobile and a power transmission method of the dual-rotor wheel hub motor. The dual-rotor wheel hub motor comprises a planetary gear mechanism and a motor group formed by an inner motor and an outer motor. The motor group and the planetary gear mechanism are connected via a clutch and are arranged in a machine shell. The outer motor is formed by an outer rotor and a stator outer winding, and the inner motor is formed by an inner rotor and a stator inner winding. The planetary gear mechanism is composed of a gear ring, an output shaft, a sun wheel, a planet wheel and a planet carrier. The dual-rotor motor could achieve torque coupling, rotational speed coupling and speed differing by combining with the planetary gear mechanism, so that different vehicle condition requirements could be met under the condition that the motor with relative small power is selected, thereby reducing automobile arrangement space and cost. As the dual-rotor wheel hub motor has a single motor braking mode and a dual-motor braking mode, the braking energy can be effectively recovered, slow braking can be achieved, and the braking stability of the motor is improved.

Description

technical field [0001] The invention relates to the field of electric vehicle hub motors and their control, in particular to a dual-rotor hub motor of a four-wheel-drive electric vehicle and a power transmission method thereof, and relates to a dual-rotor with driving, differential, braking and energy recovery Hub motors, especially through the combination of dual-rotor motors and planetary gear mechanisms, realize power speed coupling and torque coupling. Background technique [0002] As the global energy supply becomes increasingly tense, international crude oil prices fluctuate, and the ecological environment deteriorates, energy conservation and environmental protection have become global themes. Therefore, the development and research of new energy vehicles is imminent. Pure electric vehicles have become a major direction of future automobile development because of their zero-emission, zero-pollution, and high-efficiency characteristics. [0003] There are currently fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K16/02H02K3/28H02K11/00H02K1/27H02K7/10H02K7/116
Inventor 何仁杨祺
Owner JIANGSU UNIV
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