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Battery thermal conditioning pump control for electric vehicle

A vehicle and battery technology, applied in AC motor control, electric vehicles, battery/fuel cell control devices, etc., can solve problems such as battery performance impact, and achieve the effect of saving energy, reducing complexity, and minimizing energy consumption

Pending Publication Date: 2019-01-22
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

HEV and battery performance can be affected by the surrounding environment, which can introduce unintended temperature extremes to the battery, components and associated systems

Method used

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  • Battery thermal conditioning pump control for electric vehicle
  • Battery thermal conditioning pump control for electric vehicle
  • Battery thermal conditioning pump control for electric vehicle

Examples

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Embodiment Construction

[0028] As required, specific embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which may be embodied in various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention.

[0029] As will be understood by those of ordinary skill in the art, the various features, components and processes shown and described with reference to any figure can be combined with the features, components and processes shown in one or more other figures to achieve Embodiments that should be apparent to those skilled in the art but may not have been explicitly shown or described. ...

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Abstract

The disclosure relates to battery thermal conditioning pump control for an electric vehicle. A hybrid electric vehicle (HEV) and a method of operation include a thermal management system (TMS) that maintains optimal battery temperature operating ranges. The TMS includes a controller, heater, pump, and valves that control a flow rate of a convective fluid about the battery and other components. TheTMS responds to battery temperature and differential signals, converting them into pump speed and heater signals utilizing a fuzzy logic multidimensional membership function (MF) that improves performance while reducing energy consumption by generating real-time, smoothed pulse width modulated (PWM) pump speed and heater signals. The MF capability requires less processing power than prior systems, which in turn enables improved response time to battery thermal and temperature rate changes during HEV operation. The MF utilizes embedded temperature and differential MFs that generate respective,real-time, tuned signal conversion factors, without the need for calibration look-up tables, to generate the PWM pump and heater control signals.

Description

technical field [0001] The present disclosure relates to a battery thermal regulation pump controller for an electric vehicle. Background technique [0002] Hybrid, plug-in, and battery electric vehicles (HEV, PHEV, and BEV) include high voltage electric traction batteries that can be subject to uncontrolled or poorly controlled extremes in temperature. During operation, battery temperature may be managed to optimize battery performance and lifetime. Previous HEV and other vehicle thermal management systems could achieve increased efficiency and improved batteries if changes in battery operating temperature could be managed without increasing energy costs for heating and cooling the battery. HEV and battery performance can be affected by the surrounding environment, which can introduce unintended temperature extremes to the battery, components and associated systems. Previous attempts to manage battery temperature have included predicting battery heat generation and regula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/615H01M10/625H01M10/633
CPCH01M10/613H01M10/615H01M10/625H01M10/633B60L58/26B60L1/02B60L50/61B60L50/16B60L2240/545B60L58/24Y02T10/62Y02T10/70Y02T10/92Y02E60/10B60L1/003B60L1/08G05B13/0275H02P27/08B60L3/0046B60R16/04B60K2001/005B60W2050/0058G01R31/374
Inventor 王旭何川胡长健肯尼斯·乔恩·坎宁安
Owner FORD GLOBAL TECH LLC
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