Invention Grant
US08206861B2 Intermediate circuit with a first switch for switching a fuel cell stack and second switch for short-circuting the fuel stack, fuel cell system with an intermediate circuit, and method for controlling the intermediate circuit
失效
具有用于切换燃料电池堆的第一开关和用于短路燃料堆的第二开关的中间电路，具有中间电路的燃料电池系统以及用于控制中间电路的方法
- Patent Title: Intermediate circuit with a first switch for switching a fuel cell stack and second switch for short-circuting the fuel stack, fuel cell system with an intermediate circuit, and method for controlling the intermediate circuit
- Patent Title (中): 具有用于切换燃料电池堆的第一开关和用于短路燃料堆的第二开关的中间电路，具有中间电路的燃料电池系统以及用于控制中间电路的方法
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Application No.: US12303350Application Date: 2006-06-03
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Publication No.: US08206861B2Publication Date: 2012-06-26
- Inventor: Markus Aberle , Juergen Hoermann
- Applicant: Markus Aberle , Juergen Hoermann
- Applicant Address: DE Stuttgart
- Assignee: Daimler AG
- Current Assignee: Daimler AG
- Current Assignee Address: DE Stuttgart
- Agency: Crowell & Moring LLP
- International Application: PCT/EP2006/005336 WO 20060603
- International Announcement: WO2007/140798 WO 20071213
- Main IPC: H01M8/04
- IPC: H01M8/04 ; H01H19/64 ; H01H31/10 ; H01H33/52 ; H01H47/00 ; H01H85/46 ; H01H35/00 ; H01H83/00 ; H01H33/59 ; H01J7/00
Abstract:
An intermediate circuit for controlling the connection of a fuel cell stack to a load bus includes three switching elements arranged in a pi configuration. At least one such switching element is provided for short circuiting either or both of the fuel cell stack and the load bus, while a further switching element controllably interrupts the line connection between the fuel cell stack and the load bus. The respective switches are driven according to a control method that accommodates start-up operation, switch-off operation, emergency shut down, and a self diagnostic mode.
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