Method for operating vehicle-mounted fuel cell stack
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01M-008/12
H01M-008/00
출원번호
UP-0048682
(2005-01-31)
등록번호
US-7569296
(2009-08-24)
우선권정보
JP-2004-024755(2004-01-30)
발명자
/ 주소
Okazaki, Koji
출원인 / 주소
Honda Motor Co., Ltd.
대리인 / 주소
Lahive & Cockfield, LLP
인용정보
피인용 횟수 :
3인용 특허 :
3
초록▼
For controlling operation of a vehicle-mounted fuel cell stack, a determination is made as to whether consumed electric power, measured during travel of a vehicle, is greater than standard electric power. If so, a generated electric power amount (output) of a fuel cell stack is judged to be great, i
For controlling operation of a vehicle-mounted fuel cell stack, a determination is made as to whether consumed electric power, measured during travel of a vehicle, is greater than standard electric power. If so, a generated electric power amount (output) of a fuel cell stack is judged to be great, in which case not only a fan is activated for rotation but also an air allocation mechanism is operated in an opening direction. In an alternative, information of a traveling velocity is also taken into account. Namely, when the fuel cell stack is operated in a vehicle traveling state where the vehicle's traveling velocity does not increase despite an increase in the electric power output from the cell stack, not only the fan is activated for rotation but also the air allocation mechanism is operated in the opening direction, so that a cooling-air flow amount can be increased.
대표청구항▼
What is claimed is: 1. A method for operating a vehicle-mounted fuel cell stack, said vehicle-mounted fuel cell stack comprising: (a) a plurality of power generating cells each of which is generally in a shape of a flat plate and includes a solid polymer electrolyte membrane sandwiched between an a
What is claimed is: 1. A method for operating a vehicle-mounted fuel cell stack, said vehicle-mounted fuel cell stack comprising: (a) a plurality of power generating cells each of which is generally in a shape of a flat plate and includes a solid polymer electrolyte membrane sandwiched between an anode electrode and a cathode electrode, each of said power generating cells generating electric power through reaction, via the solid polymer electrolyte membrane, between fuel gas and reacting air supplied to the anode electrode and cathode electrode, respectively, each of said power generating cells having, a reacting-air introduction opening for introducing the reacting air into said power generating cell; (b) one or more cooling cells stacked alternately with said power generating cells, each of said cooling cells including two opposed flat plates for passage therebetween of cooling air and having a cooling-air introduction opening for introducing the cooling air between the opposed flat plates; and (c) an air allocation mechanism for allocating traveling wind or a stream of air, produced via a fan, to the reacting-air introduction openings and to the cooling-air introduction openings as the reacting air and cooling air, respectively, said air allocation mechanism being capable of adjusting an allocation ratio between the reacting air and the cooling air, said method comprising: measuring electric power consumed by a traveling motor for causing the vehicle to travel; measuring a traveling velocity of the vehicle; determining standard electric power that corresponds to the measured consumed electric power, said standard electric power representing a level of electric power that would be consumed by said traveling motor if the vehicle travels on flat land at the measured traveling velocity; determining that the measured consumed electric power is greater than the standard electric power; determining that the vehicle velocity has not increased: determining that a temperature of the power generating cells increases beyond a; placing said fan in an activated state for rotation; and operating the air allocation mechanism to increase an allocated amount of the cooling air and to prevent the temperature of the power generating cells from increasing further; wherein the air allocation mechanism comprises an opening/closing drive source, a link mechanism coupled to the opening/closing drive source and a valve driven via the link mechanism, wherein the step of operating the air allocation mechanism further comprises: operating the link mechanism to increase a distance between the cooling-air introduction opening and the air allocation mechanism; placing the air allocation mechanism in a retreat limit position where the air allocation mechanism is opened; introducing a portion of the traveling wind or the stream of air, produced via the fan, as the reacting air; and introducing a remaining portion of the traveling wind or a stream of air, produced via the fan, as the cooling air through the cooling-air introduction opening. 2. A method for operating a vehicle-mounted fuel cell stack, said vehicle-mounted fuel cell stack comprising: (a) a plurality of power generating cells each of which is generally in a shape of a flat plate and includes a solid polymer electrolyte membrane sandwiched between an anode electrode and a cathode electrode, each of said power generating cells generating electric power through reaction, via the solid polymer electrolyte membrane, between fuel gas and reacting air supplied to the anode electrode and cathode electrode, respectively, each of said power generating cells having a reacting-air introduction opening for introducing the reacting air into said power generating cell; (b) one or more cooling cells stacked alternately with said power generating cells, each of said cooling cells including two opposed flat plates for passage therebetween of cooling air and having a cooling-air introduction opening for introducing the cooling air between the opposed flat plates; and (c) an air allocation mechanism for allocating traveling wind or a stream of air, produced via a fan, to the reacting-air introduction openings and to the cooling-air introduction openings as the reacting air and cooling air, respectively, said air allocation mechanism being capable of adjusting an allocation ratio between the reacting air and the cooling air, said method comprising: measuring electric power consumed by a traveling motor for causing the vehicle to travel; measuring a traveling velocity of the vehicle; determining standard electric power that corresponds to the measured consumed electric power, said standard electric power representing a level of electric power that would be consumed by said traveling motor if the vehicle travels on flat land at the measured traveling velocity; and determining that the measured consumed electric power is lower than the standard electric power; determining that the vehicle velocity has increased or has stayed the same; determining that a temperature of the power generating cells decreases below a temperature; placing said fan in a deactivated state; and operating the air allocation mechanism to decrease an allocated amount of the cooling air and to prevent the temperature of the power generating cells from decreasing further; wherein the air allocation mechanism comprises an opening/closing drive source, a link mechanism coupled to the opening/closing drive source and a valve driven via the link mechanism, wherein the step of operating the air allocation mechanism further comprises: operating the link mechanism to decrease a distance between the cooling-air introduction opening and the air allocation mechanism; placing the air allocation mechanism in an advance limit position where the air allocation mechanism is closed; introducing the traveling wind or the stream of air, produced via the fan, as the reacting air.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (3)
Neutzler Jay Kevin, Brazed bipolar plates for PEM fuel cells.
Corrigan Thomas J. ; Bonville ; Jr. Leonard J. ; Lesieur Roger R. ; Hildreth Derek W. ; Lukianoff Maria G., Compact and light weight catalyst bed for use in a fuel cell power plant and method for forming the same.
Son, Ik Jae; Ko, Jae Jun; Yoon, Jong Jin; Lee, Jong Hyun; Oh, Seung Chan; Kim, Young Min; Yoo, Seung Eul; Kim, Myong Hwan; Goo, Young Mo, Apparatus and method for acceleratively activating fuel cell.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.