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Electric automobile driving range optimization method based on battery pack heating

An electric vehicle and driving range technology, applied in the field of electric vehicle driving range optimization, can solve the problems of battery pack energy reduction and consumption of battery pack energy, etc.

Active Publication Date: 2013-11-20
BEIJING KEY POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

An increase in the temperature of the battery pack will increase the overall available energy and discharge efficiency of the battery pack, but the heating process will consume the energy of the battery pack itself, resulting in a reduction in the energy of the battery pack used for electric vehicles

Method used

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  • Electric automobile driving range optimization method based on battery pack heating
  • Electric automobile driving range optimization method based on battery pack heating
  • Electric automobile driving range optimization method based on battery pack heating

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Embodiment Construction

[0023] 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.

[0024] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the descrip...

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Abstract

The invention provides an electric automobile driving range optimization method based on battery pack heating. The method includes the steps that a system obtains parking time information, environment temperature information, battery pack information, electric automobile energy consumption information and battery pack relevant parameters of an electric automobile, and goal temperatures for heading k battery packs are determined; a heating current changing curve with minimum electric quantity consumption is selected to serve as the optimal heating current changing curve and optimal battery pack consumption electric quantity; electrical charge conditions of the battery packs are calculated, residual available capacity is calculated, thus residual available energy is calculated, finally a driving range is calculated, and the driving range Range_T0 under the goal temperature Tgoal_0 is calculated; the longest driving range is selected; a battery pack heating system enables the electric automobile to reach the longest driving range. The method aiming at prolonging the driving range of the electric automobile provides the optimal calculation method of the battery pack goal temperature and the heating current changing curve, and has the advantages of being easy and convenient to calculate and achieving optimal configuration of resources.

Description

technical field [0001] The invention belongs to the technical field of power batteries for vehicles, and in particular relates to a method for optimizing the mileage of an electric vehicle based on battery pack heating. Background technique [0002] Electric vehicles have great advantages in driving economy and environmental friendliness, and have good development prospects. However, the driving range of electric vehicles is relatively short, which is inconvenient in daily use. As the temperature decreases, especially when the external temperature is lower than 0°C, the remaining available energy of the power battery pack is greatly reduced, which greatly reduces the driving range of the electric vehicle. The driving range of an electric vehicle depends on the remaining available energy of the power battery pack and the energy consumption of the electric vehicle. Among them, the remaining available energy of the power battery pack is greatly affected by temperature, so the...

Claims

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Application Information

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IPC IPC(8): B60L15/00H01M10/50
CPCY02E60/12Y02E60/10
Inventor 刘光明欧阳明高卢兰光李建秋
Owner BEIJING KEY POWER TECH
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