Controller for reversing of series motor of series electric vehicle

A series excitation motor and controller technology, applied in the direction of DC motor rotation control, DC motor speed/torque control, control system, etc., can solve the problems of high energy consumption, high noise, slow reversing speed of contactors, etc., to achieve The effect of low energy consumption, avoiding straight-through, and fast reversing speed

Active Publication Date: 2013-05-22
XINJI HUAYI AUTOMOBILE INSTR
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a controller for the commutation of the series-excited motor of the series-excited electric vehicle. , overcoming the disadvantages of slow reversing speed of the contactor in the prior art, high noise and excessive energy consumption caused by long-term power-on of the contactor coil

Method used

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  • Controller for reversing of series motor of series electric vehicle
  • Controller for reversing of series motor of series electric vehicle
  • Controller for reversing of series motor of series electric vehicle

Examples

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Embodiment 1

[0038] according to figure 1 , figure 2 , image 3 , Figure 4 with Figure 5 The illustrated embodiment constitutes a controller for commutation of a series-excited motor of a series-excited electric vehicle according to this embodiment.

[0039] The regenerative feedback method of the controller for the commutation of the series-excited motor of the series-excited electric vehicle in this embodiment is as follows: when rotating forward, G5 and G1 add PWM waves with the same phase but not necessarily the same duty cycle, and G3 is in the ON state . Due to the turn-on of MOSFET1 and MOSFET3, the excitation coil can maintain a certain excitation, or even a greater excitation. While G5 is turned on, the armature electromotive force Em is transformed into armature braking current through MOSFET5. As the excitation current increases, the armature electromotive force will also increase, and more kinetic energy of the motor will be converted into braking current. When G5 is ...

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Abstract

The invention discloses a controller for reversing of a series motor of a series electric vehicle, and relates to a controller for achieving reversing of a series motor. The controller controls conduction sequences of an MOS (metal oxide semiconductor) tube to substitute for a contactor to achieve reversing of the series motor, and comprises a hardware part and a software part, the hardware part is composed of a power circuit and a driving circuit, and the software part comprises a controller program, a regenerative feedback program and a flux-weakening speed regulating program. The controller overcomes the defects of low reversing speed of the contactor, loud noise and overlarge energy consumption due to long-time through large current.

Description

technical field [0001] The technical solution of the invention relates to a controller for realizing commutation of a series-excited motor, in particular to a controller for commutating the series-excited motor of a series-excited electric vehicle. Background technique [0002] Because of its strong overload capacity and low-speed torque, the series-wound electric vehicle can be overloaded by more than 5 times as long as the controller has a large capacity and reliable quality, and the series-wound motor has a large torque, and the series-wound motor can self-adapt the output torque. It works in the form of high speed and low torque, and it will work in the form of low speed and high torque when the torque is high. In addition, the series excitation electric vehicle is pollution-free and energy-saving. The series excitation electric vehicle has become more and more popular. The number of manufacturers is increasing , its market scale continues to expand, and it has almost ga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P7/00H02P7/03
Inventor 李练兵李向杰夏晓敏杨鹏
Owner XINJI HUAYI AUTOMOBILE INSTR
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