Electric vehicle driving motor controller with charging function and control method thereof

A technology for driving motors and electric vehicles, which is applied in the direction of AC motor control, electric vehicle charging technology, electric vehicles, etc., can solve the problems of difficult control technology, high motor design requirements, and reduced reliability, so as to reduce the electronic vitality. parts, light weight, and the effect of improving power factor

Inactive Publication Date: 2017-02-22
BOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the foreign technology uses the motor winding as the inductance, which has higher requirements on the design of the motor.
In the three-phase charging mode, an additional locking device must be added to the permanent magnet synchronous motor, which is difficult to achie

Method used

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  • Electric vehicle driving motor controller with charging function and control method thereof
  • Electric vehicle driving motor controller with charging function and control method thereof
  • Electric vehicle driving motor controller with charging function and control method thereof

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Embodiment Construction

[0032] Below in conjunction with accompanying drawing, the present invention will be further described:

[0033] As shown in the figure, the present invention proposes an electric vehicle drive motor controller with integrated charging function. The controller includes a three-phase bridge DC-AC bidirectional converter, a first relay switch K1, a second relay switch K2, an AC Power input interface device, drive motor, step-down transformer, rechargeable power battery and central control microprocessor; among them, rechargeable power battery, three-phase bridge DC-AC bidirectional converter and drive motor are connected in sequence to form a motor drive circuit, and AC power input The interface device, step-down transformer, three-phase bridge type DC-AC bidirectional converter and rechargeable power battery are connected in sequence to form a battery charging circuit. The central control microprocessor makes the battery charging circuit shut off when the motor drive circuit is ...

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Abstract

An electric vehicle driving motor controller with a charging function is characterized by comprising a three-phase bridge-type DC-AC bidirectional converter, a first relay switch, a second relay switch, an AC power supply input interface device, a driving motor, a voltage reduction transformer, a charging power battery and a central control microprocessor. The electric vehicle driving motor controller and the control method thereof have advantages of concise circuit structure, effective number reduction of electrical elements, higher operation reliability, low cost, small weight, small size and high power factor.

Description

technical field [0001] The invention relates to an electric vehicle drive motor controller integrating the charging functions of single-phase slow charging and three-phase fast charging, in particular to a controller and a control method integrating motor driving and charging functions. Background technique [0002] At present, the solution of foreign electric vehicle drive motor controller with integrated charging function based on the non-isolated integrated "charging-driving" system has been applied in the automotive industry. From the perspective of existing foreign technical solutions, the current "drive-charge" integrated solutions based on PWM rectification technology have realized functions such as efficient charging and unit power factor control, and have great advantages in performance; Three-phase inverters share power electronic devices, which saves the cost of uncontrolled rectification + active power factor correction circuit or PWM rectification circuit. It is...

Claims

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Application Information

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IPC IPC(8): H02P27/08H02J7/02B60L11/18
CPCB60L53/24H02J7/02H02J7/022H02P27/08Y02T10/64Y02T10/70Y02T10/7072Y02T10/72Y02T90/14
Inventor 王巍李明刘继行李兵张亮
Owner BOHAI UNIV
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