公开(公告)号：US09231263B2

公开(公告)日：2016-01-05

申请号：US13746227

申请日：2013-01-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Derek R. Lebzelter ,  Balasubramanian Lakshmanan ,  Sriram Ganapathy ,  Sanja Sljivar-Lovria ,  Bruce J. Clingerman ,  Michael J. Kiefer

IPC: H01M8/04 ,  H01M8/24 ,  H01M8/10

CPC classification number: H01M8/04559 ,  H01M8/0488 ,  H01M8/0494 ,  H01M2008/1095 ,  Y02E60/50

Abstract: A system and method that monitor the rate of a voltage drop of fuel cells in a fuel cell stack to determine whether the voltage drop is a result of cathode reactant starvation or anode reactant starvation. The method looks at a falling voltage of a fuel cell to determine whether the rate of the fall in voltage indicates that hydrogen starvation of the anode of the fuel cell is occurring. The method also looks at the actual voltage of the fuel cell that is falling to determine whether it is a below a predetermined minimum voltage threshold also indicating that hydrogen starvation of the anode of the fuel cell is occurring. If hydrogen starvation is occurring, the method performs power limiting of the fuel cell stack either based on the rate or the voltage level.

Abstract translation: 监测燃料电池堆中的燃料电池的电压降率的系统和方法，以确定电压降是否为阴极反应物饥饿或阳极反应物饥饿的结果。 该方法查看燃料电池的下降电压，以确定电压下降的速率是否表示燃料电池的阳极发生氢气饥饿。 该方法还查看正在下降的燃料电池的实际电压，以确定它是否低于预定的最小电压阈值，也表示正在发生燃料电池的阳极的氢气饥饿。 如果发生氢饥饿，则该方法基于速率或电压电平来执行燃料电池堆的功率限制。

公开(公告)号：US20140205924A1

公开(公告)日：2014-07-24

申请号：US13746227

申请日：2013-01-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Derek R. Lebzelter ,  Balasubramanian Lakshmanan ,  Sriram Ganapathy ,  Sanja Sljivar-Lovria ,  Bruce J. Clingerman ,  Michael J. Kiefer

IPC: H01M8/04

CPC classification number: H01M8/04559 ,  H01M8/0488 ,  H01M8/0494 ,  H01M2008/1095 ,  Y02E60/50

Abstract: A system and method that monitor the rate of a voltage drop of fuel cells in a fuel cell stack to determine whether the voltage drop is a result of cathode reactant starvation or anode reactant starvation. The method looks at a falling voltage of a fuel cell to determine whether the rate of the fall in voltage indicates that hydrogen starvation of the anode of the fuel cell is occurring. The method also looks at the actual voltage of the fuel cell that is falling to determine whether it is a below a predetermined minimum voltage threshold also indicating that hydrogen starvation of the anode of the fuel cell is occurring. If hydrogen starvation is occurring, the method performs power limiting of the fuel cell stack either based on the rate or the voltage level.

Abstract translation: 监测燃料电池堆中的燃料电池的电压降率的系统和方法，以确定电压降是否为阴极反应物饥饿或阳极反应物饥饿的结果。 该方法查看燃料电池的下降电压，以确定电压下降的速率是否表示燃料电池的阳极发生氢气饥饿。 该方法还查看正在下降的燃料电池的实际电压，以确定它是否低于预定的最小电压阈值，也表示正在发生燃料电池的阳极的氢气饥饿。 如果发生氢饥饿，则该方法基于速率或电压电平来执行燃料电池堆的功率限制。