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Vehicle battery-pack equalization system and vehicle battery-pack equalization method
US8957636B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8957636-B2 |
| Application number | US-201013575238-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 9, 2010 |
| Priority date | Jun 9, 2010 |
| Publication date | Feb 17, 2015 |
| Grant date | Feb 17, 2015 |
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Abstract
Official abstract text for this publication.
Provided is a vehicle battery-pack equalization system ( 100 ), wherein, in a battery pack ( 10 ) to be mounted on a vehicle, and which is comprised of a plurality of unit cells ( 11 ) connected in series, each of the unit cells ( 11 ) are made to be discharged to equalize the voltages thereof, or the remaining capacities (SOC) thereof. The equalization processing time of each of the unit cells ( 11 ) is set to a period of time the result of multiplying the discharging time of the battery pack ( 10 ) starting from just before the equalization processing, and the ratio of the difference between the currents discharged by each of the unit cells ( 11 ) with respect to the equalization discharging current. In such a way, power consumption during equalization processing can be inhibited.
First claim
Opening claim text (preview).
The invention claimed is: 1. A vehicle battery-pack equalization system that equalizes a voltage or a remaining capacity (SOC) of each of a plurality of cells connected in series in a battery pack mounted on a vehicle by discharging each of the plurality of cells, wherein equalization processing time of each of the cells is set to a time period which is obtained by multiplying a discharge time period of the battery pack immediately before an equalization process by a ratio of diff…
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Classifications
Operations & Transport · mapped topic
- H02J7/54Primary
Electricity · mapped topic
Operations & Transport · mapped topic
Electricity · mapped topic
- H01M10/441Primary
Electricity · mapped topic
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- What does patent US8957636B2 cover?
- Provided is a vehicle battery-pack equalization system ( 100 ), wherein, in a battery pack ( 10 ) to be mounted on a vehicle, and which is comprised of a plurality of unit cells ( 11 ) connected in series, each of the unit cells ( 11 ) are made to be discharged to equalize the voltages thereof, or the remaining capacities (SOC) thereof. The equalization processing time of each of the unit cells…
- Who is the assignee on this patent?
- Ochiai Kiyoe, Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H02J7/54. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).