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Electric vehicle and charging control method and control device thereof

A charging control method and electric vehicle technology, applied in battery/fuel cell control devices, electric vehicle charging technology, control devices, etc., can solve the problems of car space occupation, large volume, uneconomical, etc., and achieve strong compatibility and convenience The effect of using

Active Publication Date: 2021-04-20
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the DC / DC components are precise and expensive, so the cost is high and uneconomical, and the DC / DC components have a large volume, which also occupies the limited space of the car

Method used

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  • Electric vehicle and charging control method and control device thereof
  • Electric vehicle and charging control method and control device thereof
  • Electric vehicle and charging control method and control device thereof

Examples

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Embodiment Construction

[0035] 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.

[0036] A charging control method for an electric vehicle, a charging control device for an electric vehicle, and an electric vehicle with the control device according to embodiments of the present invention will be described below with reference to the accompanying drawings.

[0037] In the embodiment of the present invention, such as figure 1 As shown, the power battery pack 10 of the electric vehicle includes a first power battery pack 11 and a second power battery pack 12, wherein a positive terminal of the first power battery...

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PUM

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Abstract

The invention discloses an electric vehicle and its charging control method and control device. The charging control method includes the following steps: when the electric vehicle is connected to a charging pile, judging whether the charging power supply of the charging pile is a DC power supply; If the charging power source of the charging pile is a DC power supply, then obtain the charging voltage of the charging pile, and obtain the current voltage of the power battery pack; judge the relationship between the current voltage of the power battery pack and the charging voltage of the charging pile; The relationship between the current voltage and the charging voltage of the charging pile controls the first controllable switch to the fifth controllable switch, so as to control the power battery pack to charge in series mode or parallel mode. The control method of the present invention can select different charging modes according to the relationship between the charging voltage of the power battery pack and the charging pile, has strong compatibility, and is convenient for users to use.

Description

technical field [0001] The present invention relates to the technical field of electric vehicles, in particular to a charging control method for electric vehicles, a charging control device for electric vehicles and an electric vehicle with the control device. Background technique [0002] With the development of the new energy vehicle industry, the requirements for mileage and power consumption are getting higher and higher. The voltage platform of many car battery packs has exceeded 600V, while the maximum voltage of ordinary DC charging piles is only 500V, so it is no longer possible Meet the needs of car charging. [0003] In the related art, a DC / DC step-up device is added to realize the charging of the high-voltage battery pack. However, the DC / DC element is precise and expensive, so the cost is high and uneconomical, and the DC / DC element has a large volume, which also occupies the limited space of the car. Contents of the invention [0004] The present invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L58/10B60L58/12B60L53/66
CPCB60L2240/547B60L53/60B60L58/19B60L58/12Y02T90/16Y02T10/70Y02T10/7072Y02T90/12
Inventor 刘建国麦精学赵北平黄建陈明文杨冬生薛鹏辉
Owner BYD CO LTD
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