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Electric automobile, DC/DC converter and control system thereof

A technology of DC converters and control systems, applied to electric vehicles, current collectors, electrical components, etc., can solve the problems of electric vehicles that cannot be started and affect the use of users

Inactive Publication Date: 2016-06-29
力帆科技(集团)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the electric vehicle is placed for a certain period of time, the electric components of the electric vehicle may consum

Method used

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  • Electric automobile, DC/DC converter and control system thereof
  • Electric automobile, DC/DC converter and control system thereof
  • Electric automobile, DC/DC converter and control system thereof

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] An embodiment of the present application provides a DC / DC converter control system, which is applied to an electric vehicle. The electric vehicle includes: a power battery, a low-voltage power supply battery, and a DC / DC converter. The voltage input of the DC / DC converter is The terminal is connected to the positive and negative poles of the power battery, and the DC / DC conversion controller inside the DC / DC converter controls the power battery to charge...

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Abstract

The invention discloses an electric automobile, a DC/DC converter and a control system thereof. The control system of the DC/DC converter comprises a power supply, a first voltage dividing unit, a second voltage dividing unit, a voltage comparison unit and a control unit; when a reference voltage representing the electric quantity of a low-voltage power supply battery is less than a standard voltage, the control unit controls the control system of the DC/DC converter to work within a preset time, and the power battery of the electric automobile is used for charging the low-voltage power supply battery within the preset time, thus it can be ensured that the electric quantity of the low-voltage power supply battery can meet the starting requirement of the electric automobile provided that the power battery of the electric automobile is not empty, and thereby the possibility that the electric automobile cannot be started as the electric quantity of the low-voltage power supply battery is consumed to a lower level by constant electric parts of the electric automobile after the electric automobile is placed for a certain time is reduced.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, and more specifically, relates to an electric vehicle, a DC / DC converter and a control system thereof. Background technique [0002] In recent years, with the popularization of motor vehicles, the exhaust emissions of motor vehicles have had a great impact on the environment. Smog has become a common weather phenomenon in many cities, and smog will have a very adverse impact on people's health. Therefore, the development of more energy-saving and environmentally friendly motor vehicles has become the consensus of all walks of life. Under this trend, electric vehicles have become the choice to replace traditional vehicles with lower exhaust emissions. [0003] The energy system of an electric vehicle usually includes a power battery, a low-voltage power supply battery and a DC / DC converter; wherein, when the electric vehicle is in a non-starting state, the low-voltage power supply bat...

Claims

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Application Information

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IPC IPC(8): H02J7/00B60R16/033
CPCH02J2007/0067B60R16/033H02J2207/10H02J2207/20
Inventor 冯杰
Owner 力帆科技(集团)股份有限公司
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