Vehicle and power supply system of vehicle
US-12140944-B2 · Nov 12, 2024 · US
Method for controlling external electric power supply system of fuel cell-mounted vehicle, and external electric power supply system
US2016137065A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016137065-A1 |
| Application number | US-201514939401-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 12, 2015 |
| Priority date | Nov 13, 2014 |
| Publication date | May 19, 2016 |
| Grant date | — |
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- Title
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Abstract
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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 i) 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 ii) 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. 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 i) the upper limit value of the electric power which the secondary battery is charged with, ii) the upper limit value of the electric power discharged from the secondary battery, and iii) 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 i) the upper limit value of the electric power which the secondary battery is charged with, ii), the upper limit value of the electric power discharged from the secondary battery, and iv) 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 i) the upper limit value of the electric power which the secondary battery is charged with, ii) the upper limit value of the electric power discharged from the secondary battery, iii) the output limit value of the electric power generated by the fuel cell, and iv) 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 . The method according to claim 1 , wherein, when an external electric power supply portion of the electric power generated by the fuel cell does not reach an externally supplied electric power that is required, a difference between the externally supplied electric power that is required and the external electric power supply portion of the generated electric power is compensated for by the electric power discharged from the secondary battery. 6 . The method according to claim 1 , wherein, when an external electric power supply portion of the electric power generated by the fuel cell exceeds an externally supplied electric power that is required, the secondary battery is charged with a surplus electric power. 7 . 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 sets a value of the supply allowed electric power to be equal to or less than a smaller one of i) 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 ii) 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.
Assignees
Inventors
Classifications
Fuel cells · CPC title
Operations & Transport · mapped topic
Operations & Transport · mapped topic
- B60L1/00Primary
Supplying electric power to auxiliary equipment of vehicles (circuit arrangements for charging batteries H02J7/00) · CPC title
Maintaining the SoC within a determined range · CPC title
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Frequently asked questions
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- What does patent US2016137065A1 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 B60L1/00. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu May 19 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).