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公开(公告)号:WO2021038544A2
公开(公告)日:2021-03-04
申请号:PCT/IB2020/059504
申请日:2020-10-09
Inventor: SUN, Lei , YU, Chao , CHEN, Youpeng , HU, Gangyi
IPC: H01M8/04664 , H01M8/04537 , H01M8/04746 , H01M8/04955 , B60L58/30 , H01M8/249 , B60L3/00 , B60L50/70 , B60L3/0053 , H01M2250/20 , H01M8/04634 , H01M8/04649 , H01M8/04679 , H01M8/04753 , H01M8/04768 , E60
Abstract: A control method and system of a fuel cell electric vehicle stack. The control method comprises steps of: obtaining insulation resistance of the stack, which comprises at least two sub-stacks electrically connected in parallel; and disconnecting a sub-stack with insulation failure from a DC bus and then causing the stack to enter a failure mode when it is determined that the insulation resistance of the stack is smaller than a first preset threshold. The stack is determined to have an insulation failure when it is determined that the insulation resistance of the stack is smaller than a first preset threshold. The sub-stack that has the insulation failure is located and disconnected the sub-stack with insulation failure from a DC bus, and the stack is then caused to run in a failure mode to perform failure protection on the stack, avoid deterioration of the insulation failure and burnout of the stack and improve the safety performance of the stack.
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公开(公告)号:WO2023057055A1
公开(公告)日:2023-04-13
申请号:PCT/EP2021/077497
申请日:2021-10-06
Applicant: VOLVO TRUCK CORPORATION
Inventor: ARYA, Pranav , LINDBERG, Johan
Abstract: The invention relates to a method for operating a fuel cell system (1) comprising one or more fuel cells (10) and a cooling system (20) with a cooling fluid for cooling the one or more fuel cells during use, the method comprising: - obtaining (S1) a shutdown request for the fuel cell system (1); - predicting (S2) a future shutdown time period; - in response to detecting that the future shutdown time period is shorter than a predetermined degradation time window (TW) for the one or more fuel cells (10), operating (S3) the cooling system so as to reduce the temperature of the one or more fuel cells (10). The invention also relates to a control unit (30), a fuel cell system (1), a vehicle (100), a computer program and to a computer readable medium.
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公开(公告)号:WO2021137042A8
公开(公告)日:2021-07-08
申请号:PCT/IB2020/061124
申请日:2020-11-25
Applicant: CERES INTELLECTUAL PROPERTY COMPANY LIMITED
Inventor: SUN, Lei
IPC: B60L3/00 , B60L50/72 , B60L58/30 , H01M8/04111 , B60L1/00 , B60L3/04 , H02P25/22 , B60L1/003 , B60L2210/46 , B60L3/0053 , B60L3/0092 , H01M2250/20 , H02P29/0241 , H02P29/0243 , H02P29/025 , H02P29/028
Abstract: The invention provides a dual-source blower system for a fuel cell electric vehicle, comprising: a motor controller; a power cell, with an output end connected to a first power interface of the motor controller; an accumulator, with an output end connected to a second power interface of the motor controller; a blower, with a power input end connected to an output end of the motor controller; and a fuel cell controller, with a control signal output end connected to a control end of the power cell and a control end of the motor controller respectively. The dual-source blower system ensures the normal operation of the blower in case of a power failure of the power cell and solves the problem of a fuel cell failure caused by a sudden power failure of the power cell.
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公开(公告)号:WO2021258125A1
公开(公告)日:2021-12-30
申请号:PCT/AT2021/060225
申请日:2021-06-25
Applicant: AVL LIST GMBH
Inventor: ALDRIAN, David , TROJER, Stefan
IPC: H01M8/04492 , B60L3/00 , B60L58/30 , H01M8/04828 , H01M8/04537 , H01M8/1018 , B60L3/0053 , H01M2008/1095 , H01M2250/20 , H01M8/04559 , H01M8/04589 , H01M8/04619
Abstract: Die Erfindung betrifft ein Verfahren zur Kontrolle einer Feuchtigkeit eines PEM-Brennstoffzellensystem (100) eines Kraftfahrzeuges mit einer Steuereinrichtung, aufweisend die folgenden Schritte: Aufzeichnen eines Fahrzyklus des Kraftfahrzeu-ges über ein vorbestimmtes Zeitfenster; Feststellen von Lastpunkten des Kraftfahr-zeuges über das vorbestimmte Zeitfenster, wobei eine Häufigkeit der Lastpunkte er-mittelt wird; Wechsel in einen Feuchtigkeitsmodus in Abhängigkeit einer Häufigkeit der Lastpunkte über das vorbestimmte Zeitfenster, wobei der Wechsel von der Steu-ereinrichtung vorgegeben wird. Weiter betrifft die Erfindung ein PEM-Brennstoffzellensystem sowie die Verwendung eines solchen PEM-Brennstoffzellensystem.
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公开(公告)号:WO2021197437A1
公开(公告)日:2021-10-07
申请号:PCT/CN2021/084988
申请日:2021-04-01
Applicant: 长城汽车股份有限公司
Inventor: 胡志敏
IPC: B60L3/00 , B60L3/0053 , B60L58/30 , B60L58/31
Abstract: 一种用于燃料电池车辆的绝缘故障响应方法,包括:在车辆启动的情况下,检测燃料电池是否处于启动状态(S110);在燃料电池未处于启动状态的情况下,读取燃料电池控制单元检测的第一绝缘阻值和电池管理系统检测的第二绝缘阻值(S120);在第一绝缘阻值表示车辆处于绝缘故障的情况下,执行第一控制策略(S130);以及在第二绝缘阻值表示车辆处于绝缘故障的情况下,执行第二控制策略(S140),其中第一控制策略不同于第二控制策略,以及其中在第一绝缘阻值小于第一阈值和/或第二绝缘阻值小于第二阈值的情况下车辆处于绝缘故障。还公开了一种用于燃料电池车辆的绝缘故障响应装置、一种机器可读存储介质、一种计算处理设备和一种计算机程序。方法针对不同情况采用不同的控制策略,以确保车内人员安全。
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公开(公告)号:WO2021197436A1
公开(公告)日:2021-10-07
申请号:PCT/CN2021/084987
申请日:2021-04-01
Applicant: 长城汽车股份有限公司
Inventor: 胡志敏
IPC: B60L58/30 , B60L3/00 , B60L50/75 , B60L3/0053 , B60L3/0069 , G01R31/1227
Abstract: 提供一种用于燃料电池车辆的绝缘检测方法及装置、车辆,方法包括:判断车辆是否启动(S110);在车辆启动的情况下,执行以下步骤:控制电池管理系统执行第一绝缘检测(S120);检测燃料电池是否被启动(S130);以及在燃料电池未被启动的情况下,控制燃料电池控制单元执行第二绝缘检测(S140),其中车辆的燃料电池控制单元内设置有用于对燃料电池执行绝缘检测的绝缘检测模块。
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