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    • 1. 发明专利
    • Fuel cell system and electric vehicle with the fuel cell system mounted
    • 燃料电池系统和电动汽车与燃料电池系统安装
    • JP2010238544A
    • 2010-10-21
    • JP2009085378
    • 2009-03-31
    • Toyota Motor Corpトヨタ自動車株式会社
    • YOSHIDA MICHIOMATSUMOTO TADAICHIIMAI ATSUSHIOGAWA TOMOYA
    • H01M8/04B60L11/18H01M8/00
    • H01M8/04559H01M8/04223H01M8/04664H01M8/04679H01M8/04955H01M2250/20Y02E60/50Y02T90/32Y10T307/50
    • PROBLEM TO BE SOLVED: To restrain wrong decision regarding electrical leakage without impairing durability at starting of a fuel cell.
      SOLUTION: A fuel cell system includes with a secondary cell, a voltage converter provided between the secondary cell and a load, a fuel cell generating power by electrochemical reaction between fuel gas and oxidant gas and supplying power to the load through a shared electrical path with the voltage converter, an FC relay that turns on and off electrical connection between the fuel cell and the shared electrical path, an electrical leakage detector that detects electrical leakage in an electrical system containing the secondary cell, the voltage converter and the fuel cell, and a control part that performs decision regarding electrical leakage. The control part includes a start means for starting the fuel cell by raising voltage of the fuel cell from a starting voltage to an operation voltage that is lower than an open-circuit voltage, and electrical leakage decision means for performing the decision regarding electrical leakage after a predetermined time elapses, when the FC relay is closed while a voltage difference between the voltage of the fuel cell and voltage supplied from the voltage converter to the load is greater than a predetermined threshold value.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:限制关于泄漏的错误决定,而不损害燃料电池启动时的耐久性。 解决方案:燃料电池系统包括二次电池,设置在二次电池和负载之间的电压转换器,燃料电池通过燃料气体和氧化剂气体之间的电化学反应产生电力,并通过共享的电力向负载供电 电压转换器的电气路径,FC继电器,其接通和断开燃料电池和共享电路之间的电连接;漏电检测器,其检测包含二次电池,电压转换器和燃料的电气系统中的漏电 电池,以及执行关于漏电的判定的控制部。 控制部包括用于通过将燃料电池的电压从起动电压提高到比开路电压低的工作电压来起动燃料电池的启动装置,以及用于对所述燃料电池的漏电判定结果 当FC继电器闭合,同时燃料电池的电压和从电压转换器提供给负载的电压之间的电压差大于预定阈值时,经过预定时间。 版权所有(C)2011,JPO&INPIT
    • 2. 发明专利
    • Fuel battery system and electric vehicle with fuel battery system mounted
    • 燃料电池系统和电动汽车与燃料电池系统安装
    • JP2010238531A
    • 2010-10-21
    • JP2009085111
    • 2009-03-31
    • Toyota Motor Corpトヨタ自動車株式会社
    • YOSHIDA MICHIOIMAI ATSUSHIOGAWA TOMOYA
    • H01M8/04B60L11/18H01M8/00
    • H01M8/04552H01M8/04223H01M8/04671H01M8/0488H01M8/04955H01M2250/20Y02T90/32
    • PROBLEM TO BE SOLVED: To start a fuel battery system without having adverse influence on durability or the like of a fuel battery at starting of the fuel battery.
      SOLUTION: The fuel battery system includes a fuel battery having a plurality of fuel battery cells generating power by an electrochemical reaction with fuel gas and oxidant gas, and a control part controlling voltage of the fuel battery. The control part includes a start means for starting the fuel battery by raising the voltage of the fuel battery from a starting voltage to a high-potential-avoiding voltage that is lower than an open-circuit voltage, and a command means for raising the voltage of the fuel battery to the open-circuit voltage when a cell voltage of at least one of the plurality of fuel battery cells is lower than or equal to a predetermined voltage after a certain time elapses after the voltage of the fuel cell is raised.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:在燃料电池启动时,起动燃料电池系统而不会对燃料电池的耐久性等产生不利影响。 解决方案:燃料电池系统包括具有通过与燃料气体和氧化剂气体的电化学反应产生电力的多个燃料电池单元的燃料电池和控制燃料电池的电压的控制部分。 控制部包括用于通过将燃料电池的电压从起动电压提高到低于开路电压的高电位回避电压来起动燃料电池的启动装置,以及用于提高电压的指令装置 在多个燃料电池单元中的至少一个的电池电压在燃料电池的电压上升经过一定时间后低于或等于预定电压时,燃料电池的开路电压达到开路电压。 版权所有(C)2011,JPO&INPIT
    • 3. 发明专利
    • Fuel cell system and electric vehicle with the fuel cell system mounted
    • 燃料电池系统和电动汽车与燃料电池系统安装
    • JP2010238494A
    • 2010-10-21
    • JP2009084631
    • 2009-03-31
    • Toyota Motor Corpトヨタ自動車株式会社
    • YOSHIDA MICHIOIMAI ATSUSHIOGAWA TOMOYA
    • H01M8/04B60L11/18H01M8/00
    • Y02T10/7241
    • PROBLEM TO BE SOLVED: To make a fuel cell system smoothly start without impairing durability at starting a fuel cell. SOLUTION: The fuel cell system is provided with a fuel cell, a power detection means, and a control part calculating an output power command value of the fuel cell in accordance with a required power from a load. The control part starts the fuel cell by raising the voltage of the fuel cell from a starting voltage to an operation voltage that is lower than an open-circuit voltage, after the voltage of the fuel cell reaches the operation voltage, the control part initializes an output power command value of the fuel cell by an actual output power of the fuel cell detected by the power detection means at moving of the state of the fuel cell to the normal operation. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了使燃料电池系统平稳地起动而不损害起动燃料电池时的耐久性。 解决方案:燃料电池系统设置有燃料电池,功率检测装置和控制部件,其根据来自负载的所需功率来计算燃料电池的输出功率指令值。 控制部在燃料电池的电压达到工作电压后,通过将燃料电池的电压从启动电压提高到低于开路电压的工作电压来启动燃料电池,控制部将初始化燃料电池 燃料电池的输出功率指令值由燃料电池的状态移动到正常运转时,由功率检测单元检测出的燃料电池的实际输出功率。 版权所有(C)2011,JPO&INPIT
    • 4. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2009158399A
    • 2009-07-16
    • JP2007337843
    • 2007-12-27
    • Toyota Motor Corpトヨタ自動車株式会社
    • IMANISHI HIROYUKIMANABE KOTAOGAWA TOMOYA
    • H01M8/04H01M8/10
    • H01M8/0432H01M8/04268H01M8/04335H01M8/04358H01M8/04388H01M8/04395H01M8/04559H01M8/04589H01M8/0488H01M8/0491H01M2008/1095H01M2250/20Y02E60/50Y02T90/32
    • PROBLEM TO BE SOLVED: To provide a fuel cell system capable of executing proper current limitation even when a cell voltage is reduced by rapid warming-up or the like.
      SOLUTION: When the rapid warming-up is started, a cell voltage allowable value setting part 80c sets the lowest cell voltage allowable value according to an operation state of a fuel cell. Meanwhile, a cell voltage target value setting part 80d sets an initial value of the lowest cell voltage target value. After that, the cell voltage target value setting part 80d compares the lowest cell voltage detected by a cell monitor with the set lowest cell voltage target value, and determines whether or not the lowest cell voltage is continuously converged into the vicinity of the lowest cell voltage target value for a certain period of time. Then, the cell voltage target value setting part 80d updates the lowest cell voltage target value Vth to the value reduced only by the update width ΔV when an affirmative determination is obtained.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供即使当通过快速预热等减少电池电压时也能够执行适当的电流限制的燃料电池系统。 解决方案:当快速预热开始时,电池电压容许值设定部80c根据燃料电池的运转状态设定最低电池电压容许值。 同时,电池电压目标值设定部80d设定最小电池电压目标值的初始值。 之后,电池电压目标值设定部80d将由电池监视器检测到的最低电池电压与设定的最低电池电压目标值进行比较,并且判断最低电池电压是否连续地收敛到最低电池电压附近 目标价值一段时间。 然后,单元电压目标值设定部80d在获得肯定判定时,将最低单元电压目标值Vth更新为仅减小了更新宽度ΔV的值。 版权所有(C)2009,JPO&INPIT
    • 5. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2009158398A
    • 2009-07-16
    • JP2007337835
    • 2007-12-27
    • Toyota Motor Corpトヨタ自動車株式会社
    • IMANISHI HIROYUKIMANABE KOTANAGANUMA YOSHIAKIOGAWA TOMOYA
    • H01M8/04H01M8/10
    • H01M8/0432H01M8/04268H01M8/04559H01M8/04567H01M8/04589H01M8/04597H01M8/0488H01M8/04888H01M8/0491H01M8/04917H01M10/44H01M10/48H01M2008/1095H01M2250/20Y02T90/32
    • PROBLEM TO BE SOLVED: To provide a fuel cell system capable of transiting an operation state while optimally controlling an output voltage and an output current of a fuel cell. SOLUTION: When it is determined that the timing of transiting from low efficient operation to normal operation has come, an ECU performs processing for increasing the amount of oxidizing gas supplied to a fuel cell stack by a predetermined amount as preprocessing for shifting to ΔV control (S120). After the output power is detected, and the output power deviation Pd is calculated, the ECU compares this output power deviation Pd with the set deviation threshold ΔP. When the output power deviation Pd exceeds the deviation threshold ΔP, the ECU 70 executes I-V control after the ΔV control (S130→S140→S150→S160). Meanwhile, when the output power deviation Pd does not exceed the deviation threshold ΔP, the ECU determines that the executing timing of ΔV control has not come yet, and compulsorily starts I-V control without performing ΔV control (S130→S140→S170). COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种能够在最佳地控制燃料电池的输出电压和输出电流的同时过渡运行状态的燃料电池系统。 解决方案:当确定从低效运行到正常运行的时间到来时,ECU执行用于将提供给燃料电池堆的氧化气体量增加预定量的处理作为转移到 ΔV控制(S120)。 在检测到输出功率并计算输出功率偏差Pd之后,ECU将该输出功率偏差Pd与设定的偏差阈值ΔP进行比较。 当输出功率偏差Pd超过偏差阈值ΔP时,ECU70在ΔV控制之后执行I-V控制(S130→S140→S150→S160)。 同时,当输出功率偏差Pd不超过偏差阈值ΔP时,ECU确定ΔV控制的执行定时尚未到来,并且在不进行ΔV控制的情况下强制开始I-V控制(S130→S140→S170)。 版权所有(C)2009,JPO&INPIT
    • 6. 发明专利
    • Fuel cell system
    • 燃油电池系统
    • JP2009152131A
    • 2009-07-09
    • JP2007330660
    • 2007-12-21
    • Toyota Motor Corpトヨタ自動車株式会社
    • TSUCHIYA NAOHISAOGAWA TOMOYA
    • H01M8/04H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To provide a fuel cell system capable of controlling an action of an air bypass valve optimally according to operation status of a fuel cell.
      SOLUTION: An ECU starts a processing of learning a start point, when it is determined that there comes a timing of returning an opening ratio of an air bypass valve to 0% during rapid warm up B (step S100 → step S200). In a case of an indication of opening the air bypass valve depending on necessity of rapid warm up during carrying out the processing of learning the start point, or the like (the step S200 → step S300), the ECU gives priority to the indication, cancels the processing of learning the start point, and controls to open the air bypass valve at a predetermined timing (step S400 → step S500). Thereby, there can be prevented a problem such that faults in output of a fuel cell stack caused by an excessive air stoichiometric ratio occur, or the like.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种能够根据燃料电池的运行状态最佳地控制空气旁通阀的动作的燃料电池系统。 解决方案:当在快速预热B期间确定有将空气旁通阀的开启比率返回到0%的时刻时,ECU开始学习起点的处理(步骤S100→步骤S200) 。 在执行开始学习开始处理等的快速预热的情况下(步骤S200→步骤S300),在指示空气旁通阀的指示的情况下,ECU对该指示优先, 取消学习起点的处理,并且控制在预定定时打开空气旁通阀(步骤S400→步骤S500)。 因此,可以防止由于发生过量的空气化学计量比引起的燃料电池堆的输出故障等问题。 版权所有(C)2009,JPO&INPIT
    • 9. 发明专利
    • Fuel cell system and electric vehicle with the fuel cell system mounted
    • 燃料电池系统和电动汽车与燃料电池系统安装
    • JP2010238532A
    • 2010-10-21
    • JP2009085112
    • 2009-03-31
    • Toyota Motor Corpトヨタ自動車株式会社
    • YOSHIDA MICHIOIMAI ATSUSHIOGAWA TOMOYA
    • H01M8/04H01M8/00
    • B60L11/1887B60L11/1885H01M8/04567H01M16/006Y02T90/34
    • PROBLEM TO BE SOLVED: To start a fuel cell system without degradation of a secondary cell at starting of the fuel cell.
      SOLUTION: The fuel cell system starts a fuel cell by setting the voltage supplied from a voltage converter at an open-circuit voltage of the fuel cell, and raising the voltage of the fuel cell from a starting voltage to the open-circuit voltage when the secondary cell is overcharged. When the secondary cell is not overcharged, the system starts the fuel cell by setting the voltage supplied from the voltage converter at a high-potential-avoiding voltage that is lower than the open-circuit voltage of the fuel cell after the elapse of a predetermined time following a command to open an FC relay, and raising the voltage of the fuel cell from the starting voltage to the high-potential-avoiding voltage.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:在燃料电池启动时不启动二次电池的劣化来启动燃料电池系统。 解决方案:燃料电池系统通过将从电压转换器提供的电压设置在燃料电池的开路电压并且将燃料电池的电压从启动电压提高到开路来启动燃料电池 二次电池过充电时的电压。 当二次电池不被过充电时,系统通过将从电压转换器提供的电压设置在低于燃料电池的开路电压的高电位回避电压之后启动燃料电池。 打开FC继电器的命令之后的时间,以及将燃料电池的电压从起始电压提高到高电位避免电压。 版权所有(C)2011,JPO&INPIT
    • 10. 发明专利
    • Fuel cell system and vehicle equipped with this
    • 燃油电池系统和配备的车辆
    • JP2010238530A
    • 2010-10-21
    • JP2009085110
    • 2009-03-31
    • Toyota Motor Corpトヨタ自動車株式会社
    • YOSHIDA MICHIOIMAI ATSUSHIOGAWA TOMOYA
    • H01M8/04H01M8/00
    • H01M8/04559H01M8/04567H01M8/04626H01M8/0488H01M8/04955H01M16/003Y02E60/50
    • PROBLEM TO BE SOLVED: To provide a fuel cell system avoiding overcharging of a secondary cell at starting of a fuel cell.
      SOLUTION: The fuel cell system includes a fuel cell, a secondary cell, a voltage converter fitted between the secondary cell and a load, and a control part for controlling an amount of power generation at starting of the fuel cell. The control part charges the secondary cell with surplus electric power at the time of starting, and adjusts operation voltage of the fuel cell between an open-circuit voltage and a high-potential-avoiding voltage (S130) when the output voltage of the fuel cell is decreased from the open-circuit voltage to the high-potential-avoiding voltage, in case at least a secondary cell of the following cases is to be overcharged (S110 to S128), which are the case where a passing electric power that passes through the voltage converter exceeds a secondary cell-charging-purpose permitted-to-pass electric power, the case where the input electric power restriction value W
      in for the secondary cell is exceeded, and the case where an amount of regeneration by the mover that is charged is not restricted.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种在燃料电池启动时避免二次电池过充电的燃料电池系统。 解决方案:燃料电池系统包括燃料电池,二次电池,安装在二次电池和负载之间的电压转换器,以及用于控制燃料电池启动时发电量的控制部件。 控制部在启动时对剩余电力对二次电池进行充电,并且在燃料电池的输出电压(S130)下调节开路电压与高电位避免电压之间的燃料电池的工作电压(S130) 在以下情况下,至少二次电池要过充电(S110〜S128)的情况下,从开路电压降低到高电位避免电压,这是通过电力通过的情况 电压转换器超过二次电池充电用途允许通过电力,超过了二次电池的的输入电力限制值W 的情况, 被充电的移动器的再生不受限制。 版权所有(C)2011,JPO&INPIT