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Bidirectional vehicle-mounted battery charger integrated with DC/DC and electric vehicle

A vehicle-mounted charger and circuit technology, applied to electric vehicles, electric vehicle charging technology, charging stations, etc., can solve the problems of weight reduction, heavy weight that cannot achieve lightweight, and low conversion efficiency of DC/DC converters, etc., to improve Conversion efficiency, meeting lightweight requirements, and improving user experience

Inactive Publication Date: 2019-10-22
宝能(广州)汽车研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On-board chargers and DC / DC converters are important components of electric vehicles. At present, a considerable number of electric vehicles use integrated on-board chargers and DC / DC converters, but most of them are physically integrated and heavy. Unable to achieve lightweight goals
A small part uses the deep integration design at the electrical level, which can greatly reduce the weight, but there is the problem of low conversion efficiency of the DC / DC converter

Method used

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  • Bidirectional vehicle-mounted battery charger integrated with DC/DC and electric vehicle
  • Bidirectional vehicle-mounted battery charger integrated with DC/DC and electric vehicle
  • Bidirectional vehicle-mounted battery charger integrated with DC/DC and electric vehicle

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Embodiment Construction

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0029] The following describes the DC / DC integrated bidirectional on-board charger and the electric vehicle according to the embodiments of the present invention with reference to the accompanying drawings.

[0030] figure 1 It is a structural block diagram of a DC / DC integrated bidirectional on-board charger according to an embodiment of the present invention.

[0031] Such as figure 1 As shown, the DC / DC integrated bidirectional on-board charger 100 includes: a PFC circuit 110 , an OBC circuit 120 , a DC / DC conversion circuit...

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PUM

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Abstract

The invention provides a bidirectional vehicle-mounted battery charger integrated with DC / DC and an electric vehicle. The bidirectional vehicle-mounted battery charger integrated with the DC / DC comprises a PFC circuit, a OBC circuit, a DC / DC conversion circuit and a controller, wherein the input end of the PFC circuit is used for being connected with an external power supply, the input end of theOBC circuit is connected with the output end of the PFC circuit, the output end of the PFC circuit is used for being connected with a high-voltage power battery of the electric vehicle, the input endof the DC / DC conversion circuit is connected with the output end of the PFC circuit, the output end of the DC / DC conversion circuit is used for being connected with the low-voltage load of the electric vehicle, the controller is correspondingly connected with the PFC circuit, the OBC circuit and the DC / DC conversion circuit, and is used for correspondingly controls the PFC circuit, the OBC circuitand the DC / DC conversion circuit to achieve energy transmission among the external power supply, and the high-voltage power battery and the low-voltage load. The bidirectional vehicle-mounted batterycharger integrated with the DC / DC is light in weight, high in DC / DC conversion efficiency, and an inverter discharging function is achieved.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a DC / DC integrated bidirectional on-board charger and an electric vehicle. Background technique [0002] With the gradual increase in the requirements for energy saving and emission reduction, the electrification of vehicles has become one of the main development directions of the automotive industry, and lightweight and integrated to a certain extent can improve the battery life of electric vehicles and reduce the power consumption of the whole vehicle. On-board chargers and DC / DC converters are important components of electric vehicles. At present, a considerable number of electric vehicles use integrated on-board chargers and DC / DC converters, but most of them are physically integrated and heavy. Can not achieve the goal of lightweight. A small part uses a deeply integrated design at the electrical level, which can greatly reduce the weight, but there is a problem o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/20B60L53/22H02M3/335
CPCB60L53/20B60L53/22H02M3/3353Y02T10/70Y02T10/7072Y02T10/72Y02T90/14
Inventor 张澄鉴杨春雷
Owner 宝能(广州)汽车研究院有限公司
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