System and method for recalibrating traction battery through bi-directional power transfer

A traction battery and power transmission technology, applied in battery/battery traction, transportation and packaging, battery data exchange, etc., can solve the problem that the charge capacity value of the first traction battery is no longer applicable

Pending Publication Date: 2022-08-09
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the traction battery ages and is used, the first traction battery charge capacity value may no longer be applicable

Method used

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  • System and method for recalibrating traction battery through bi-directional power transfer
  • System and method for recalibrating traction battery through bi-directional power transfer
  • System and method for recalibrating traction battery through bi-directional power transfer

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Embodiment Construction

[0008] The following specification relates to a system and method for recalibrating a traction battery charge capacity value. The traction battery charge capacity value may be the basis for estimating vehicle range, traction battery state of charge, and traction battery health. Traction batteries can be included in e.g. figure 1 in the electric vehicle shown, or in the hybrid vehicle. Traction batteries can be charged and discharged via electric vehicle power equipment including, for example, figure 2 Capabilities shown for DC charge / discharge, AC charge / discharge, and wireless charge / discharge. image 3 Exemplary data shared between the vehicle's battery management system (BMS) and the EVSE during initial communication is shown in . Figure 4 A method for recalibrating the traction battery charge capacity value is shown in .

[0009] The traction or propulsion battery can supply and receive power to and from the electric motor that propels the vehicle. Traction batterie...

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PUM

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Abstract

The present disclosure provides a system and method for recalibrating a traction battery through bi-directional power transfer. Methods and systems for recalibrating charge storage capacity values of an electrical energy storage device are described. In one example, the charged electrical energy storage device may be a battery. The charge storage capacity value may be recalibrated by discharging and charging the battery via the electric vehicle power supply equipment.

Description

technical field [0001] This specification generally relates to methods and systems for recalibrating traction battery charge capacity values. The traction battery charge capacity value can be used to determine vehicle range, battery state of charge, and battery state of health. Background technique [0002] The traction battery may begin its life with the first traction battery charge capacity value. As the traction battery ages and is used, the first traction battery charge capacity value may no longer apply. The first traction battery charge capacity value may be replaced with a second traction battery charge capacity value; however, the second traction battery charge capacity value may be expected to be accurate so that estimates of vehicle range, battery state of charge, and battery state of health are also can be accurate. SUMMARY OF THE INVENTION [0003] It should be understood that the above summary is provided to introduce a series of concepts in a simplified f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L58/12B60L53/12B60L53/14B60L53/62B60L53/66
CPCB60L58/12B60L53/66B60L53/62B60L53/12B60L53/14B60L2260/44H02J7/00032B60L58/13B60L53/64B60L53/63H02J7/0048H02J2310/48B60L50/60B60L53/50H02J2207/20H02J7/0071H02J7/04H02J50/10
Inventor 章源王锐王旭
Owner FORD GLOBAL TECH LLC
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