Driving control system of electric vehicle

A control system and electric vehicle technology, applied in the field of power electronics, can solve problems such as the mutual influence of the heating circuit and the load circuit, the heating circuit cannot work normally, etc., to achieve the effect of stable voltage output and reducing output voltage ripple

Active Publication Date: 2013-07-24
BYD SEMICON CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the heating circuit and the load circuit will interact with each other when the electric vehicle is driving while driving, so that the heating circuit cannot work normally, and to provide an electric vehicle that can be used while driving. Electric vehicle driving control system that ensures that the heating circuit and the load circuit do not affect each other when heating while driving

Method used

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  • Driving control system of electric vehicle
  • Driving control system of electric vehicle
  • Driving control system of electric vehicle

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Embodiment Construction

[0051] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0052] It should be pointed out that, unless otherwise specified, when mentioned below, the term "heating circuit control module" refers to any module capable of outputting control commands (such as pulse waveforms) according to set conditions or set moments to control the corresponding heating circuit connected to it. A controller that starts or stops automatically, such as a PLC; when mentioned below, the term "bidirectional switch" refers to a bidirectional switch that can realize on-off control through electrical signals or realize on-off control according to the characteristics of the components themselves, such as Metal Oxide Semiconductor Field Effect Tra...

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Abstract

The invention provides a driving control system of an electric vehicle. The driving control system comprises a heating circuit (11) and a load capacitor C12, wherein the heating circuit (11) is used for being connected with a vehicle-mounted battery (5) to form a heating loop; and the driving control system further comprises a current storage element L11, wherein the current storage element L11 and the load capacitor C12 are connected in series and are then connected with the heating circuit (11) in parallel. According to the driving control system of the electric vehicle provided by the invention, the heating circuit (11) and the load capacitor C12 can work simultaneously without affecting each other.

Description

technical field [0001] The invention belongs to the field of power electronics, in particular to a driving control system for an electric vehicle. Background technique [0002] Considering that the car needs to drive under complex road conditions and environmental conditions, the on-board battery as the power source of the electric vehicle needs to adapt to these complex conditions, especially when the electric vehicle is in a low-temperature environment, it is even more necessary for the on-board battery to have excellent low-temperature charge and discharge performance and Higher input and output power performance. Generally speaking, under low temperature conditions, the impedance of the on-board battery will increase, and the polarization will increase, which will lead to a decrease in the capacity of the on-board battery. In order to maintain the capacity of the on-board battery under low temperature conditions, existing electric vehicles are provided with a heating ci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R16/02B60L11/18
CPCB60L2210/30H02J7/00B60L11/005B60L1/02Y02T10/7005H01M16/00Y02T10/7241B60L11/18B60L2240/547H01M10/5006H05B1/0236Y02T10/705H05B3/00B60L2240/549Y02T10/7022H01M10/50B60L11/1875B60L2240/545H01M10/657B60L50/40B60L58/27H01M10/615Y02T10/70Y02T10/72Y02E60/10H01M10/4264H01M2010/4271H01M2220/20
Inventor 韩瑶川冯卫杨钦耀李先银
Owner BYD SEMICON CO LTD
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