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Vehicle and energy conversion device and power system thereof

An energy conversion device and converter technology, which is applied in the electronic field, can solve the problems of complex structure, low integration, and large volume of the motor drive and charging system, and achieve the effects of simple structure, reduced system cost, and high system integration

Active Publication Date: 2020-07-21
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, an energy conversion device and a power system, aiming to solve the problems in the prior art that the overall structure of the motor drive and charging system is complex, low in integration, large in size and high in cost

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

[0174] Further, as an embodiment of the present application, the charging port includes a DC charging port and an AC charging port, and the switch module includes a first switch unit and a second switch unit;

[0175] The control module controls the first switch unit to be turned on, and controls the second switch unit to be turned off, 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;

[0176] The control module controls the first switch unit to be turned off, and controls the second switch unit to be turned on. The AC charging port, the second switch unit, the motor coil, the bridge arm converter, the bidirectional bridge arm and the battery form an AC charging circuit to enter the AC charging circuit. model;

[0177] The control module controls both the first switch unit and the second switch unit to be turned off, and the motor coil, the bridge arm converter an...

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PUM

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Abstract

The invention relates to the technical field of electronics, and provides a vehicle and an energy conversion device and a power system thereof. In the application, an energy conversion device which comprises a motor coil, a bridge arm converter and a bidirectional bridge arm and integrates driving and charging functions is adopted; therefore, the energy conversion device can work in a driving mode, a direct-current charging mode and an alternating-current charging mode. Motor driving and battery charging of the vehicle are realized by adopting the same system; especially, direct-current charging and alternating-current charging can be achieved through the same circuit topology, the component reuse degree is high, the system integration degree is high, the structure is simple, and thereforethe system cost is reduced, the system size is reduced, and the problem that an existing motor driving and charging system is complex in overall structure, low in integration degree, large in size and high in cost is 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. 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 and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/22B60L53/24H02J7/02H02J7/00
CPCB60L53/22B60L53/24H02J7/02B60L53/11Y02T90/14Y02T10/70H02J2207/20B60L2210/10B60L2210/30H02M3/33584H02P27/06
Inventor 滕景翠刘宇梁树林王超罗红斌
Owner BYD CO LTD
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