Intelligent control device of motor for electric automobile

A technology for intelligent control and electric vehicles, applied in the direction of electric vehicles, single motor speed/torque control, electromechanical devices, etc., can solve the problems of short motor mileage and life, inability to accurately control the motor, Hall sensor failure, etc.

Inactive Publication Date: 2014-04-30
BAFANG ELECTRIC (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]At present, one of the similar products on the market is a traditional permanent magnet brushless DC motor. Since the Hall sensor is installed on the stator core, the When the motor is running, the stator core is in a high temperature state, which is easy to cause the Hall sensor to fail
The other is the method of using auxiliary magnets for the high temperature defects of permanent magnet brushless DC motors. Although this solves the problem of Hall temperature, the positioning of Hall sensors is difficult.
The above two methods cannot accurately control the operation of the motor, and the operating mileage and life of the motor are relatively short

Method used

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  • Intelligent control device of motor for electric automobile
  • Intelligent control device of motor for electric automobile
  • Intelligent control device of motor for electric automobile

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Embodiment Construction

[0017] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0018] see figure 1 and figure 2 As shown, a motor intelligent control device for an electric vehicle includes an angle sensing device and a magnetic field emission device. The angle sensing device is composed of an angle sensor 3, a circuit board 4 and a mounting plate 5, and the mounting plate 5 is fixed on the end of the motor with screws 6. On the cover 7, the circuit board 4 is fixed on the mounting plate 5 through the positioning column on the mounting plate 5, and the circuit board 4 is equipped with an angle sensor 3 at a certain angle.

[0019] The magnetic field emitting device includes a magnetic steel 2, which has N and S poles, and the magnetic steel 2 is p...

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Abstract

The invention relates to an intelligent control device of a motor for an electric automobile. The intelligent control device can control operation of the motor precisely and improve operating efficiency of the motor. The intelligent control device comprises an angle induction device and a magnetic field emission device, wherein the angle induction device is composed of an angle transducer, a circuit board and a mounting plate, the mounting plate is fixed to an end cover of the motor, the circuit board is fixed to the mounting plate and provided with the angle transducer, the magnetic field emission device comprises magnetic steel, the magnetic steel is fixed to the end portion of a motor shaft and has an N pole and an S pole, when the motor shaft is started to operate, a sine wave waveform with a phase difference of 45 degrees is generated between the magnetic steel and the angle transducer, a control system controls the sine wave waveform so as to control the motor to stably operate, more accurate precision control is achieved, operating efficiency of the motor is improved, driving comfort of the finished automobile is improved and the continuous operational mileage of the finished automobile is lengthened.

Description

technical field [0001] The invention relates to a motor for electric vehicles, in particular to an intelligent motor control device for electric vehicles. Background technique [0002] At present, one of the similar products on the market is a traditional permanent magnet brushless DC motor. Because the Hall sensor is installed on the stator core of this motor, the stator core is in a high temperature state when the motor is running, which is easy to make the Hall sensor The sensor has failed. The other is the method of using auxiliary magnets for the high temperature defects of permanent magnet brushless DC motors. Although this solves the problem of Hall temperature, the positioning of Hall sensors is difficult. The above two methods cannot accurately control the operation of the motor, and the running mileage and life of the motor are relatively short. Contents of the invention [0003] In order to solve the above technical problems, the object of the present inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K11/00H02P6/08H02K11/20
CPCY02T10/64
Inventor 王清华张苏北左本友
Owner BAFANG ELECTRIC (SUZHOU) CO LTD
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