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Online Vehicle Battery Capacity Diagnosis System and Method

A vehicle and capacity technology, applied in vehicle components, vehicle energy storage, measurement of electrical variables, etc., can solve problems such as traction battery performance changes

Active Publication Date: 2022-05-06
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traction battery performance may vary over time

Method used

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  • Online Vehicle Battery Capacity Diagnosis System and Method
  • Online Vehicle Battery Capacity Diagnosis System and Method
  • Online Vehicle Battery Capacity Diagnosis System and Method

Examples

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Embodiment Construction

[0011] Embodiments of the disclosure are described herein. It should be understood, however, that the disclosed embodiments are merely examples and that other embodiments may take various and alternative forms. 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. As will be understood by persons of ordinary skill in the art, various features shown and described with reference to any one figure may be combined with features shown in one or more other figures to create embodiments not explicitly shown or described. Combinations of features shown provide representative embodiments of typical applications. However, various combinations and modifications of the features consistent with ...

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Abstract

A vehicle includes a traction battery. The vehicle also includes a controller programmed to generate an estimate of the capacity of the traction battery and responsive to the amount of energy supplied to the traction battery during the charge cycle being less than the estimated amount of energy stored in the traction battery during the charge cycle , while detecting that the capacity of the traction battery has changed, and changing the operating strategy of the traction battery until the capacity estimate is updated.

Description

technical field [0001] The present application generally relates to a system for estimating the battery capacity of a vehicle traction battery. Background technique [0002] Hybrid and electric vehicles include high-voltage traction batteries that provide stored electrical energy for propulsion and other vehicle functions. The performance of traction batteries may vary over time. For example, the maximum amount of energy that a traction battery can store typically decreases over time. Contents of the invention [0003] A vehicle powertrain system includes a controller programmed to operate a traction battery within a first state-of-charge range and responsive to a magnitude of energy provided to the traction battery during a charge cycle being less than an estimated amount of energy stored during the charge cycle The amount of energy in the traction battery operates the traction battery within a second state-of-charge range narrower than the first state-of-charge. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L58/12
CPCB60L58/10B60R16/033B60L2240/54B60L2260/44B60L58/12G01R31/3842G01R31/3648Y02T10/70
Inventor 常晓光王旭何川
Owner FORD GLOBAL TECH LLC