公开(公告)号：US20160141672A1

公开(公告)日：2016-05-19

申请号：US14940659

申请日：2015-11-13

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Masashi TOIDA ,  Yoshiaki NAGANUMA ,  Tomohiro OGAWA

IPC: H01M8/04

CPC classification number: H01M8/04291 ,  H01M8/04097 ,  H01M8/04201 ,  H01M8/04253 ,  H01M8/0432 ,  H01M8/04402 ,  H01M8/04753 ,  H01M8/04761

Abstract: There is provided a fuel cell system, wherein a controller configured to set the flow volume of a fluid in an anode flow path at an outlet of an anode of the fuel cell to a first flow volume, then set thereafter the flow volume of the fluid in the anode flow path at the outlet of the anode to a second flow volume which is smaller than the first flow volume, and discharge the water in the hydrogen discharge flow path by opening an exhaust and drain valve while the fluid is flowing at the second flow volume.

Abstract translation: 提供了一种燃料电池系统，其中控制器被配置为将燃料电池的阳极出口处的阳极流路中的流体的流量设定为第一流量，然后设定流体的流量 在阳极出口处的阳极流动路径中的第二流量小于第一流量，并且在流体在第二流动期间打开排气和排出阀，排出氢排放流路中的水 流量。

公开(公告)号：US20160141655A1

公开(公告)日：2016-05-19

申请号：US14929653

申请日：2015-11-02

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yoshiaki NAGANUMA ,  Tomohiro OGAWA ,  Tsuyoshi MARUO ,  Masashi TOIDA

IPC: H01M8/04119 ,  H01M8/04746 ,  H01M8/04313

CPC classification number: H01M8/04156 ,  B60L1/003 ,  B60L3/0053 ,  B60L11/1881 ,  B60L11/1896 ,  B60L11/1898 ,  B60L2240/22 ,  B60L2240/642 ,  H01M8/04097 ,  H01M8/04164 ,  H01M8/04179 ,  H01M8/04313 ,  H01M8/04753 ,  H01M8/04761 ,  H01M2250/20 ,  Y02T90/32

Abstract: A method of discharging water from a mobile object, which includes a fuel cell, a gas-liquid separator, and a circulation pump, comprises: an inclined state detection step of detecting an inclined state of the mobile object with respect to a horizontal plane; a scavenging start step of starting to supply scavenging gas at a predetermined first supply flow rate to a gas flow path in the fuel cell, by driving the circulation pump; and a supply flow rate increase step of increasing, when the mobile object is in a predetermined inclined state in which an outlet of the gas flow path is directed upward against a direction of gravity, a rotational speed of the circulation pump so that the supply flow rate of the scavenging gas is increased to a second supply flow rate higher than the first supply flow rate after a predetermined period from starting to supply the scavenging gas.

Abstract translation: 一种从可移动物体排出水的方法，包括燃料电池，气液分离器和循环泵，包括：倾斜状态检测步骤，检测移动体相对于水平面的倾斜状态; 清扫开始步骤，通过驱动循环泵开始以预定的第一供给流量向燃料电池中的气体流路供给清除气体; 以及供给流量增加步骤，当所述移动体处于气流路径的出口相对于重力方向朝上的预定倾斜状态时，所述循环泵的旋转速度增大，使得所述供给流量 在开始供给清除气体的规定期间之后，清扫气体的比例增加到高于第一供给流量的第二供给流量。

公开(公告)号：US20160133971A1

公开(公告)日：2016-05-12

申请号：US14922421

申请日：2015-10-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yoshiaki NAGANUMA ,  Masashi TOIDA ,  Tomohiro OGAWA ,  Tsuyoshi MARUO

IPC: H01M8/04

Abstract: The method comprises: determining whether or not an inlet temperature is equal to or above a lower-limit temperature of a temperature range in which generated water does not freeze within the fuel cell; and adjusting the flow rate of the cooling medium in the circulation flow path to become more than the normal flow rate when it is determined that the inlet temperature is equal to or above the lower-limit temperature, and adjusting the flow rate of the cooling medium in the circulation flow path to be equal to or below the normal flow rate when it is determined that the inlet temperature is not equal to or above the lower-limit temperature.

Abstract translation: 该方法包括：确定入口温度是否等于或高于在燃料电池内产生的水不会结冰的温度范围的下限温度; 以及当确定所述入口温度等于或高于所述下限温度时，将所述循环流路中的所述冷却介质的流量调节为大于所述正常流量，并且调节所述冷却介质的流量 当确定入口温度不等于或高于下限温度时，在循环流动路径中等于或低于正常流量。

公开(公告)号：US20230378489A1

公开(公告)日：2023-11-23

申请号：US18318795

申请日：2023-05-17

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Masashi TOIDA ,  Manabu TAKAHASHI ,  Yutaka TANO

IPC: H01M8/04089 ,  H01M8/04082 ,  H01M8/04746 ,  H01M8/04228 ,  H01M8/22 ,  H01M8/0438

CPC classification number: H01M8/04097 ,  H01M8/04201 ,  H01M8/04753 ,  H01M8/04228 ,  H01M8/22 ,  H01M8/0441 ,  H01M8/04402

Abstract: A fuel cell system includes: a fuel cell stack; a fuel tank; a fuel pipe connecting the fuel cell stack and the fuel tank; a fuel regulator disposed in the fuel pipe and configured to regulate a flow rate of fuel gas to be supplied from the fuel tank to an anode; a fuel stop valve disposed in the fuel pipe; and a controller. The controller is configured to execute, when activating or stopping the fuel cell stack: a first process of opening the fuel stop valve and the fuel regulator; a second process of closing the fuel stop valve and the fuel regulator when an anode internal pressure reaches a predetermined first anode pressure; and a third process of outputting a signal indicating occurrence of fuel leakage when the anode internal pressure after a predetermined first period is lower than a predetermined second anode pressure.

公开(公告)号：US20210376344A1

公开(公告)日：2021-12-02

申请号：US17182297

申请日：2021-02-23

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Masashi TOIDA ,  Yusuke NISHIDA ,  Hiroyuki TSUNEKAWA ,  Masahiro ITO

IPC: H01M8/04223 ,  H01M8/04119 ,  H01M8/0432 ,  H01M8/04694 ,  H01M8/04029 ,  H01M8/043

Abstract: A fuel cell system includes: a fuel cell; a temperature acquisition unit that acquires a temperature at a specific position in a vehicle equipped with the fuel cell system; a purge unit that purges the fuel cell when an operation of the fuel cell is stopped; and a control unit that acquires the temperature at the specific position from the temperature acquisition unit at least once from when the fuel cell system is stopped until the fuel cell system is started again, and uses the temperature at the specific position to determine whether purging at a stop by the purge unit is necessary when the fuel cell system is stopped next.

公开(公告)号：US20180026280A1

公开(公告)日：2018-01-25

申请号：US15608960

申请日：2017-05-30

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shigeki HASEGAWA ,  Masashi TOIDA

IPC: H01M8/04119 ,  H01M8/241 ,  H01M8/04828 ,  H01M8/04537 ,  H01M8/1018 ,  H01M8/0432

Abstract: A fuel cell system, comprising: a fuel cell stack including a stacked body provided by stacking a plurality of cells in a stacking direction; a compressor configured to feed a purge gas to a cathode of the fuel cell stack; a controller configured to control the compressor, such as to perform stop-time purging that purges the cathode of the fuel cell stack when operation of the fuel cell system is stopped; a first temperature gauge configured to measure a first temperature value that reflects temperature of a cell placed near a center in the stacking direction among the plurality of cells constituting the stacked body and to input the measured first temperature value into the controller; and a second temperature gauge configured to measure a second temperature value that reflects temperature of a cell placed near an end in the stacking direction among the plurality of cells constituting the stacked body and to input the measured second temperature value into the controller, wherein the controller is configured to suspend the stop-time purging when the first temperature value is equal to or higher than a first reference temperature and the second temperature value is lower than a second reference temperature.

公开(公告)号：US20160380283A1

公开(公告)日：2016-12-29

申请号：US15186614

申请日：2016-06-20

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Takashi YAMADA ,  Masashi TOIDA

IPC: H01M8/04119 ,  H01M8/04828 ,  H01M8/0432 ,  H01M8/04007 ,  H01M8/04228 ,  H01M8/04291

CPC classification number: H01M8/04179 ,  H01M8/04007 ,  H01M8/04029 ,  H01M8/04097 ,  H01M8/04164 ,  H01M8/04201 ,  H01M8/04223 ,  H01M8/04228 ,  H01M8/04303 ,  H01M8/0432 ,  H01M8/04365 ,  H01M8/04373 ,  H01M8/04731 ,  H01M8/04753 ,  H01M2250/20 ,  Y02T90/32

Abstract: There is provided a technique to suppress water from remaining in a fuel cell and auxiliary machines after a stop of operation of a fuel cell system. A fuel cell system 100 includes a controller 10, a fuel cell 20, a cathode gas supply discharge system 30 and an anode gas supply discharge circulation system 50. The controller 10 serves as a termination process controller 15 to control a termination process that is performed when operation of the fuel cell 20 is to be stopped. In the termination process, the termination process controller 15 performs a quick warm-up operation to quickly increase the temperature of the fuel cell 20, subsequently performs a standard warm-up operation that has a lower temperature rise rate of the fuel cell 20 than that in the quick warm-up operation, and then performs a purging process to purge the fuel cell 20.

Abstract translation: 提供了一种在燃料电池系统停止操作之后抑制燃料电池和辅助机器中的水分残留的技术。 燃料电池系统100包括控制器10，燃料电池20，阴极气体供给排出系统30和阳极气体供给排出循环系统50.控制器10用作终止处理控制器15，以控制执行的终止处理 当燃料电池20的运转停止时。 在终止处理中，终端处理控制器15进行快速预热操作，以快速提高燃料电池20的温度，随后执行具有比燃料电池20的升温速率更低的标准预热操作 在快速预热操作中，然后执行吹扫过程以清除燃料电池20。

公开(公告)号：US20160141686A1

公开(公告)日：2016-05-19

申请号：US14933570

申请日：2015-11-05

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tsuyoshi MARUO ,  Yoshiaki NAGANUMA ,  Tomohiro OGAWA ,  Masashi TOIDA

IPC: H01M8/04

CPC classification number: H01M8/04761 ,  H01M8/04097 ,  H01M8/04179 ,  H01M8/04231 ,  H01M8/04253 ,  H01M8/04388 ,  H01M8/04686 ,  H01M2250/20 ,  Y02T90/32

Abstract: The present invention provides a fuel cell system capable of suppressing the accumulation of impurities in a hydrogen system even when a hydrogen pump stops. A fuel cell system 100 includes a hydrogen pump 4, which is provided in a hydrogen gas circulation flow path 3 and which circulates a hydrogen off-gas discharged from the outlet side of a hydrogen electrode 1a of a fuel cell 1 to the inlet side of the hydrogen electrode 1a, a discharge valve 61, through which the hydrogen off-gas flowing in the hydrogen gas circulation flow path 3 is discharged out of the hydrogen gas circulation flow path 3, a determination section 81, which determines whether the hydrogen pump 4 is stopped, and a control unit 80, which controls the opening/closing of the discharge valve 61. If the determination section 81 determines that the hydrogen pump 4 has been stopped, then the control unit 80 controls the opening/closing of the discharge valve 61 to increase the discharge amount of the hydrogen off-gas discharged through the discharge valve 61 so as to be greater than the discharge amount of the hydrogen off-gas discharged on the assumption that the hydrogen pump 4 is in operation.

Abstract translation: 本发明提供一种能够抑制氢系统中的杂质积聚的燃料电池系统，即使氢泵停止。 燃料电池系统100包括氢泵4，该氢泵4设置在氢气循环流路3中，并使从燃料电池1的氢电极1a的出口侧排出的氢废气循环到 氢电极1a，在氢气循环流路3中流出的氢废气从氢气循环流路3排出的排出阀61，判定部81判断氢泵4 以及控制排出阀61的打开/关闭的控制单元80.如果确定部81判定氢泵4已经停止，则控制单元80控制排出阀的打开/关闭 61，以通过排出阀61排出的氢气废气的排出量增加，以便大于排出的氢气排放量，假定氢p ump 4正在运行。

公开(公告)号：US20160141670A1

公开(公告)日：2016-05-19

申请号：US14921309

申请日：2015-10-23

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Tsuyoshi MARUO ,  Yoshiaki NAGANUMA ,  Tomohiro OGAWA ,  Masashi TOIDA

IPC: H01M8/04

CPC classification number: H01M8/0432 ,  H01M8/04179

Abstract: A fuel cell system 10 includes a fuel cell 20, gas supply systems 30, 40, which supply gases to the fuel cell 20, and a controller 60, which controls the gas supply systems 30, 40. During a non-operation period of the fuel cell 20, the controller 60 controls the gas supply systems 30, 40 to carry out the scavenging treatment. If the scavenging treatment is interrupted by an operation performed by a user, then the controller 60 controls the gas supply systems 30, 40 and restarts the scavenging treatment after a predetermined time elapses from the interruption.

Abstract translation: 燃料电池系统10包括燃料电池20，向燃料电池20供应气体的气体供应系统30,40，以及控制气体供应系统30,40的控制器60.在非操作期间 燃料电池20，控制器60控制气体供给系统30,40进行清扫处理。 如果清除处理被用户执行的操作中断，则控制器60控制气体供给系统30,40，并且在从中断经过预定时间之后重新启动清除处理。

公开(公告)号：US20160141665A1

公开(公告)日：2016-05-19

申请号：US14939537

申请日：2015-11-12

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Masashi TOIDA ,  Yoshiaki NAGANUMA ,  Tomohiro OGAWA ,  Tsuyoshi MARUO

IPC: H01M8/04

CPC classification number: H01M8/04253 ,  H01M8/04097 ,  H01M8/04201 ,  H01M8/04303 ,  H01M8/0432 ,  H01M8/04373 ,  H01M8/04753 ,  H01M2008/1095

Abstract: To provide technology that is capable of inhibiting a decrease in starting properties of a pump in a low-temperature environment. A fuel cell system is equipped with a control unit, a fuel cell, and a pump. The control unit acquires the temperature of the fuel cell as a parameter expressing the temperature of the pump while operation of the fuel cell is stopped. The control unit rotates rotation body of the pump when it is detected that the temperature of the pump is a threshold value or less set within a predetermined range lower than the freezing point based on the detected temperature of the fuel cell.

Abstract translation: 提供能够抑制在低温环境下的泵的起动性能降低的技术。 燃料电池系统配备有控制单元，燃料电池和泵。 控制单元在停止燃料电池的操作的同时获取作为表示泵的温度的参数的燃料电池的温度。 基于检测到的燃料电池的温度，当检测到泵的温度在低于冰点的预定范围内时，泵的温度被设定在阈值以下时，控制单元旋转泵的旋转体。