Electric vehicle drive system
US-9225268-B2 · Dec 29, 2015 · US
Method for controlling external electric power supply system of fuel cell-mounted vehicle, and external electric power supply system
US10071649B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10071649-B2 |
| Application number | US-201514939401-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 12, 2015 |
| Priority date | Nov 13, 2014 |
| Publication date | Sep 11, 2018 |
| Grant date | Sep 11, 2018 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A method for controlling an external electric power supply system supplying electric power from a fuel cell and a secondary battery mounted on a vehicle to an external load, the method including controlling electric power from the fuel cell and the secondary battery such that externally supplied electric power supplied to the external load is equal to or less than supply allowed electric power, and setting the supply allowed electric power to be equal to or less than a smaller one of an upper limit value of electric power which the secondary battery is charged with set in accordance with a temperature, and an electric power storage amount of the secondary battery and an upper limit value of electric power discharged from the secondary battery set in accordance with the temperature and the electric power storage amount of the secondary battery.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for controlling an external electric power supply system supplying electric power from a fuel cell and a secondary battery mounted on a vehicle to an external load, the method comprising: controlling electric power generation of the fuel cell and charging and discharging of the secondary battery such that externally supplied electric power, as electric power supplied to the external load from the fuel cell and the secondary battery, is equal to or less than supply allowed electric power; and setting a value of the supply allowed electric power to be equal to or less than a smaller one of an upper limit value of electric power with which the secondary battery is charged, the upper limit value of electric power with which the secondary battery is charged being set in accordance with a temperature and an electric power storage amount of the secondary battery, and an upper limit value of electric power discharged from the secondary battery, the upper limit value of electric power discharged from the secondary battery being set in accordance with the temperature and the electric power storage amount of the secondary battery. 2. The method according to claim 1 , wherein the value of the supply allowed electric power is set to be equal to or less than a smallest one of the upper limit value of the electric power with which the secondary battery is charged, the upper limit value of the electric power discharged from the secondary battery, and an output limit value of electric power generated by the fuel cell when the fuel cell is in a state where the fuel cell is capable of supplying the generated electric power to the external load. 3. The method according to claim 1 , wherein the value of the supply allowed electric power is set to be equal to or less than a smallest one of the upper limit value of the electric power with which the secondary battery is charged, the upper limit value of the electric power discharged from the secondary battery, and an upper limit value of the supply allowed electric power at which a magnitude of electric power passing through an electric power conversion unit converting electric power generated by the fuel cell into the externally supplied electric power is equal to or less than an upper limit value set such that the electric power conversion unit is protected. 4. The method according to claim 2 , wherein the value of the supply allowed electric power is set to be equal to or less than a smallest one of the upper limit value of the electric power with which the secondary battery is charged, the upper limit value of the electric power discharged from the secondary battery, the output limit value of the electric power generated by the fuel cell, and an upper limit value of the supply allowed electric power at which a magnitude of electric power passing through an electric power conversion unit converting the electric power generated by the fuel cell into the externally supplied electric power is equal to or less than an upper limit value set such that the electric power conversion unit is protected when the fuel cell is in a state where the fuel cell is capable of supplying the generated electric power to the external load. 5. An external electric power supply system supplying electric power from a fuel cell and a secondary battery mounted on a vehicle to an external load, the external electric power supply system comprising a control device controlling electric power generation of the fuel cell and charging and discharging of the secondary battery such that externally supplied electric power as electric power supplied to the external load from the fuel cell and the secondary battery is equal to or less than supply allowed electric power, wherein the control device is programmed to set a value of the supply allowed electric power to be equal to or less than a smaller one of an upper limit value of electric power with which the secondary battery is charged, the upper limit value of electric power with which the secondary battery is charged being set in accordance with a temperature and an electric power storage amount of the secondary battery, and an upper limit value of electric power discharged from the secondary battery, the upper limit value of electric power discharged from the secondary battery being set in accordance with the temperature and the electric power storage amount of the secondary battery.
Assignees
Inventors
Classifications
Operations & Transport · mapped topic
- B60L1/006Primary
to power outlets · CPC title
Temperature · CPC title
- B60L11/1862Primary
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10071649B2 cover?
- A method for controlling an external electric power supply system supplying electric power from a fuel cell and a secondary battery mounted on a vehicle to an external load, the method including controlling electric power from the fuel cell and the secondary battery such that externally supplied electric power supplied to the external load is equal to or less than supply allowed electric power,…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B60L1/006. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Sep 11 2018 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).