Invention Grant
- Patent Title: Fuel cell system
- Patent Title (中): 燃料电池系统
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Application No.: US12810131Application Date: 2008-12-18
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Publication No.: US08795915B2Publication Date: 2014-08-05
- Inventor: Hiroyuki Imanishi , Kota Manabe , Yoshiaki Naganuma , Tomoya Ogawa
- Applicant: Hiroyuki Imanishi , Kota Manabe , Yoshiaki Naganuma , Tomoya Ogawa
- Applicant Address: JP Toyota-Shi
- Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee Address: JP Toyota-Shi
- Agency: Kenyon & Kenyon LLP
- Priority: JP2007-337835 20071227
- International Application: PCT/JP2008/073056 WO 20081218
- International Announcement: WO2009/084448 WO 20090709
- Main IPC: H01M8/04
- IPC: H01M8/04

Abstract:
Provided is a fuel cell system capable of making a shift of an operation state while optically controlling an output voltage and an output voltage of a fuel cell. When an ECU judges that the time when an operation should be shifted from a low-efficiency operation to a normal operation has come, the ECU performs, as preprocessing prior to a shift to a ΔV control, processing of increasing an oxidant gas supplied to a fuel cell stack by a predetermined amount. After this processing, the ECU detects output power, calculates an output power deviation, and then compares the output power deviation with a set deviation threshold. When the output power deviation exceeds the deviation threshold, the ECU carries out the ΔV control, and then carries out an I-V control. Meanwhile, when the output power deviation does not exceed the deviation threshold, the ECU judges that the time when the ΔV control is carried out has not come yet, and automatically starts the I-V control without carrying out the ΔV control.
Public/Granted literature
- US20100266916A1 FUEL CELL SYSTEM Public/Granted day:2010-10-21
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