Vehicle and energy conversion device and power system thereof

An energy conversion device and power system technology, applied in the field of electronics, can solve the problems of complex circuit structure, low integration and large volume of the motor drive and charging system, and achieve simple structure, high degree of component reuse, and system integration. high degree of effect

Active Publication Date: 2021-01-15
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this application is to provide a vehicle and its energy conversion device and power system, aiming at solving the problems of complex overall circuit structure, low integration, large volume and high cost of the motor drive and charging system in the prior art

Method used

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  • Vehicle and energy conversion device and power system thereof
  • Vehicle and energy conversion device and power system thereof
  • Vehicle and energy conversion device and power system thereof

Examples

Experimental program
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Effect test

Embodiment approach

[0142] Further, as an embodiment of the present application, the charging port includes a DC charging port, and the switch module includes a first switch unit;

[0143] The control module controls the first switch unit to be turned on, and the DC charging port, the first switch unit, the motor coil, the bridge arm converter and the battery form a DC charging circuit to enter the DC charging mode;

[0144] The control module controls the first switch unit to be turned off, and the motor coil, the bridge arm converter, and the battery form a motor drive circuit to enter a drive mode.

[0145] Further, as an embodiment of the present application, the energy conversion device further includes a neutral point switch;

[0146] Wherein, the motor coil includes three-phase windings, and each phase winding includes N coil branches, and the first ends of the N coil branches in each phase winding are connected to the bridge arm converter after being connected in common, and in each phase...

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Abstract

The invention belongs to the technical field of electronics, and particularly relates to a vehicle and an energy conversion device and a power system thereof. According to the vehicle, the energy conversion device which comprises the motor coil and the bridge arm converter and integrates driving and charging functions is adopted, so that the energy conversion device can work in a driving mode anda direct-current charging mode, motor driving and battery charging of the vehicle can be realized by adopting the same system, the reuse degree of components is high. The system is high in integrationdegree and simple in structure, so that the system cost is reduced, the system size is reduced, and the problems that an existing motor driving and charging system is complex in overall structure, low in integration degree, large in size and high in cost are solved.

Description

technical field [0001] The present application belongs to the field of electronic technology, and in particular relates to a vehicle, an energy conversion device and a power system thereof. Background technique [0002] With the development and rapid popularization of electric vehicles, motor control and battery charging of electric vehicles are becoming more and more important. At present, the motor driving and battery charging of existing electric vehicles are separated independently, that is, the motor driving circuit and the battery charging circuit are two independent and unrelated circuits, and the motor driving circuit is only used for motor driving and cannot be used For battery charging, similarly, the battery charging circuit can only be used for battery charging, not for motor driving. [0003] However, although the above method can effectively guarantee the normal operation of the motor driving and battery charging of the vehicle, since the motor driving circuit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/22B60L53/24H02J7/02H02J7/00
CPCB60L53/22B60L53/24H02J7/02Y02T10/70Y02T10/7072Y02T90/14
Inventor 滕景翠刘宇梁树林王超罗红斌
Owner BYD CO LTD
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