Battery system
US-9205756-B2 · Dec 8, 2015 · US
Vehicular battery system and vehicle equipped with same
US9533595B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9533595-B2 |
| Application number | US-201214408566-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 29, 2012 |
| Priority date | Sep 5, 2012 |
| Publication date | Jan 3, 2017 |
| Grant date | Jan 3, 2017 |
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- Title
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Abstract
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In a battery system for a vehicle, a lead battery is connected in parallel to a sub-battery, and a charging resistance r 2 of the sub-battery 2 is lower than a charging resistance r 1 of the lead battery.
First claim
Opening claim text (preview).
The invention claimed is: 1. A battery system for a vehicle comprising: a lead battery having a charging resistance r 1 ; and a sub-battery being connected to the lead battery in parallel, and having a charging resistance r 2 , wherein the charging resistance r 2 of the sub-battery is lower than the charging resistance r 1 of the lead battery, and a charging resistance ratio r 2 /r 1 of the charging resistance r 2 of the sub-battery to the charging resistance r 1 of the lead battery is equal to or less than 0.4, and a discharging resistance R 2 of the sub-battery is higher than a discharging resistance R 1 of the lead battery. 2. The battery system for the vehicle according to claim 1 , wherein a discharging resistance ratio R 2 /R 1 of the discharging resistance R 2 of the sub-battery to the discharging resistance R 1 of the lead battery is equal to or less than 2.4. 3. The battery system for the vehicle according to claim 1 , wherein a discharging resistance ratio R 2 /R 1 of the discharging resistance R 2 of the sub-battery to the discharging resistance R 1 of the lead battery is equal to or more than 1.2, and equal to or less than 2.4. 4. The battery system for the vehicle according to claim 1 , wherein the lead battery and the sub-battery are connected in parallel without a voltage conversion circuit. 5. The battery system for a vehicle according to claim 4 , wherein the lead battery and the sub-battery are directly connected by a lead wire. 6. The battery system for the vehicle according to claim 1 , wherein the sub-battery comprises nickel hydride batteries. 7. The battery system for the vehicle according to claim 6 , wherein the sub-battery comprises ten pieces of the nickel hydride batteries connected in series. 8. The battery system for the vehicle according to claim 1 , wherein the sub-battery comprises non-aqueous electrolyte secondary batteries. 9. The battery system for the vehicle according to claim 1 , wherein the lead battery and the sub-battery are installed in a vehicle having an idle stop function, and both the lead battery and the sub-battery are charged with power of a regenerative power generation in the vehicle. 10. The battery system for the vehicle according to claim 1 , wherein a battery capacity (Ah) of the sub-battery is smaller than a battery capacity (Ah) of the lead battery. 11. The battery system for the vehicle according to claim 1 , wherein a ratio of a battery capacity (Ah) of the sub-battery to a battery capacity (Ah) of the lead battery is equal to or more than 1/30, and equal to or less than 1/2. 12. A vehicle having an idle stop function and equipped with the battery system according to claim 1 , comprising: an engine driving the vehicle; and an alternator being actuated by the engine, and charging the battery system. 13. A vehicle having an idle stop function and equipped with the battery system according to claim 1 , comprising: an engine driving the vehicle; and an alternator being actuated by the engine or regenerative braking, and charging the battery system.
Assignees
Inventors
Classifications
with multiple batteries · CPC title
having different nominal voltages · CPC title
Cross-Sectional Technologies · mapped topic
- B60L11/1859Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9533595B2 cover?
- In a battery system for a vehicle, a lead battery is connected in parallel to a sub-battery, and a charging resistance r 2 of the sub-battery 2 is lower than a charging resistance r 1 of the lead battery.
- Who is the assignee on this patent?
- Sanyo Electric Co
- What technology area does this patent fall under?
- Primary CPC classification B60L11/1859. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 03 2017 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).