Electric wheel based on birotor motor and control method thereof

A dual-rotor motor, electric wheel technology, applied in electric vehicles, electric braking systems, power management and other directions, can solve the problems of motor regenerative braking, waste of braking energy, etc., to reduce noise and dust pollution, reduce the use of The number of times, the effect of expanding the range of use

Active Publication Date: 2014-07-23
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the traditional four-wheel drive electric vehicle is limited by the regenerative braking of the motor a

Method used

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  • Electric wheel based on birotor motor and control method thereof
  • Electric wheel based on birotor motor and control method thereof
  • Electric wheel based on birotor motor and control method thereof

Examples

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Example Embodiment

[0031] The electric wheel structure and working principle of the dual-rotor motor of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0032] An electric wheel based on a double-rotor motor, comprising a double-rotor motor, an outer rotor electromagnetic retarding brake, an inner rotor electromagnetic retarding brake, and an electric wheel control mechanism of the double-rotor motor.

[0033] like figure 1 As shown, the positional relationship of the internal components of the dual-rotor motor 20 includes from the outside to the inside: the motor casing 17, the stator winding 5, the outer winding 7 of the outer rotor, the outer rotor 15, the inner winding 6 of the outer rotor, and the inner rotor 16; The three-phase symmetrical stator winding 5 is installed on the inner side of the motor casing 17, and the outer rotor 15 is fixed with two inner and outer windings, that is, the inner winding 6 of the outer rotor and the ...

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Abstract

The invention discloses an electric wheel based on a birotor motor and a control method thereof. The electric wheel comprises the birotor motor, an outer-rotor electromagnetic retarding brake, an inner-rotor electromagnetic retarding brake and a friction brake. The outer-rotor electromagnetic retarding brake is formed by a friction braking disc and a stator of an electromagnetic retarding brake fixed to a shell of the birotor motor, and the friction braking disc is fixedly connected with an outer rotor shaft through a bolt. The inner-rotor electromagnetic retarding brake is formed by an electromagnetic retarding disc and the stator of the electromagnetic retarding brake fixed to the shell of the birotor motor, and the electromagnetic retarding disc is fixedly connected with an inner rotor shaft through a bolt. The electric wheel has a driving working condition and a braking working condition. The application range of regenerative braking of the motor is broadened, and the driving range and the energy utilization rate of an electric automobile are increased; the use frequency of the friction brake is effectively decreased, the braking energy consumption of the electric automobile is reduced, noise and dust pollution caused in the braking process is reduced, and the electric wheel is environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of motor control, in particular to an electric wheel based on a dual-rotor motor and a control method thereof applied to a four-wheel independently driven electric vehicle. Background technique [0002] Generally speaking, when electric vehicles are used in urban traffic, they are in the working state of starting, accelerating and braking most of the time. The starting performance (starting torque / starting current), acceleration performance, efficiency at low speed, and The energy regeneration capability, overload capacity, energy density and reliability during braking and coasting are particularly important for electric vehicles, and are important indicators for measuring electric vehicle motors. At present, on the one hand, the braking intensity provided by motor regenerative braking is low, exceeding the range of battery SOC value and temperature constraints; on the other hand, motor regenerative braking ...

Claims

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Application Information

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IPC IPC(8): B60K7/00B60L7/10
CPCY02T10/72
Inventor 何仁胡东海
Owner JIANGSU UNIV
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