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Energy conversion device, powertrain and vehicle

An energy conversion device and converter technology, which is applied in the electronic field, can solve the problems of large capacitor heat loss, complex structure, and low integration, and achieve the effects of reducing system cost, high system integration, and high reuse

Active Publication Date: 2022-03-18
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 an energy conversion device, a power system, and a vehicle, aiming to solve the problems of complex structure, low integration, large volume, high cost, and heat dissipation when the capacitor is discharged in the existing overall circuit of the motor drive and charging system. big loss problem

Method used

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  • Energy conversion device, powertrain and vehicle
  • Energy conversion device, powertrain and vehicle
  • Energy conversion device, powertrain and vehicle

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Embodiment Construction

[0034] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0035] The implementation of the present application is described in detail below in conjunction with specific drawings:

[0036] figure 1 The module structure of the energy conversion device provided by the first embodiment of the present application is shown. For the convenience of description, only the parts related to this embodiment are shown, and the details are as follows:

[0037] like figure 1 As shown, the energy conversion device provided by the embodiment of the present application includes a motor coil 11, a bridge arm converter 12, a bidirectional bridge ar...

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Abstract

The present application belongs to the field of electronic technology, and in particular relates to an energy conversion device, a power system and a vehicle. In this application, the energy conversion device can work in Drive mode, DC charging mode and AC charging mode, and then realize the motor drive and battery charging of the vehicle using the same system, and achieve the purpose of capacitor multiplexing, high degree of component multiplexing, high system integration and simple structure, thus The system cost is reduced, the system volume is reduced, and when the voltage at both ends of the capacitor is too high, the voltage at both ends of the capacitor can be discharged, which solves the problems of complex structure and integration in the existing overall circuit of the motor drive and charging system. Low cost, large volume, high cost, and large heat loss when the capacitor is discharged.

Description

technical field [0001] The present application belongs to the field of electronic technology, and in particular relates to an energy conversion device, a power system and a vehicle. 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 drive of existing electric vehicles, the AC charging of the battery, and the DC charging of the battery are all independent, and in order to ensure the charging power or drive normally, it is usually necessary to connect the drive circuit, DC charging circuit and AC charging circuit. Set a capacitor in. [0003] However, although the above method can effectively guarantee the normal operation of the motor drive and battery charging of the vehicle, since the motor drive circuit and the battery charging circuit in the above method are independent and irrelevant to each other, and each ci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L53/22B60L53/24H02J7/00H02J7/02
CPCB60L53/22B60L53/24H02J7/02Y02T10/70Y02T10/7072Y02T90/14
Inventor 王超刘伟冬王兴辉
Owner BYD CO LTD