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Switching of intelligent cruising of self-sliding motor and control over PWM and SVPWM of permanent-magnet brushless motor

A kind of electric motor, intelligent technology, applied in the direction of electric motor, electric vehicle, control drive, etc., can solve the problem of difficult conversion, and achieve the effect of saving electric energy, large output torque and high utilization rate

Inactive Publication Date: 2017-07-18
高学才
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the special chip successfully developed by Toshiba Corporation of Japan has solved the conversion of the above two modes, it only starts with a 120° conduction square wave when starting. When the position signal reaches 5Hz, a sinusoidal modulation wave is generated. Modulation wave and triangular wave Comparing to generate sine wave PWM signal, automatically switch to 180° conduction SVPWM mode, but when the car needs BLDCM mode at low speed, hill climbing, acceleration, loading, etc., the conversion becomes difficult

Method used

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  • Switching of intelligent cruising of self-sliding motor and control over PWM and SVPWM of permanent-magnet brushless motor
  • Switching of intelligent cruising of self-sliding motor and control over PWM and SVPWM of permanent-magnet brushless motor

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing, the present invention will be further described, as appended figure 1 , the intelligent cruising system of self-sliding motor of electric vehicle of the present invention comprises speed signal input (1) from this terminal input of the instant speed of automobile and shows on display screen (18), and cruising start / exit terminal (10) is The driver can also use the foot switch (11) to press and hold the signal to start or exit the cruising, and to leave and exit. The required cruising speed is output from the cruising speed setting (3) to control related circuits, which can be displayed by touch during setting. (3) on the screen, and then input by the number keyboard (9), and another method can also be used to set, that is, the instant speed of the car when the cruise start / exit (10) is pressed as the set cruise speed, as long as the touch screen Touch (0) on (18) to get final product, or set a touch key to use on the steer...

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Abstract

The invention provides switching application of intelligent cruising of a hub self-sliding motor for an electric automobile and control over PWM and SVPWM of a permanent-magnet brushless motor. According to the switching application, an electric intelligent cruising controller with an automatic sliding function and the permanent-magnet brushless BLDCM motor are used for achieving automatic and manual switching of 120-degree two-phase breakover PWM square wave control and 180-degree three-phase breakover SVPWM sine wave control.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a control system for electric motors used in electric vehicles. Background technique [0002] At present, there are many types of electric motors used in electric vehicles, each with its own advantages and disadvantages, and it is the general trend to replace the mid-mounted motor with hub motors. The high-efficiency and energy-saving self-sliding technology of hub motors has the advantage of being a latecomer. However, there is no research on the control of motor self-sliding. When the car is going uphill, it is easy to use the self-glide function by mistake. When it should not be used, the driver often forgets to use the self-glide function when the car is on a straight road. It is useless when it should be used. The best time to use the self-glide function is when going downhill. However, the driver is often unable to control the length of the taxiing time. On downhi...

Claims

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Application Information

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IPC IPC(8): B60L15/20
CPCB60L15/2045B60L2240/12B60L2260/24Y02T10/64Y02T10/72
Inventor 高学才
Owner 高学才
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