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1. 发明授权

US11611094B2 Fuel cell system and method of controlling fuel cell system 有权
公开(公告)号：US11611094B2
公开(公告)日：2023-03-21
申请号：US16269902
申请日：2019-02-07
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Yusuke Miyamoto , Shigeki Hasegawa , Naoki Tomi , Nobukazu Mizuno , Masafumi Yamagata
IPC分类号： H01M8/04746 , H01M8/04082 , H01M8/04111
摘要： A fuel cell system is equipped with a control unit that controls a rotational speed of the turbo compressor that supplies air to an air supply flow passage and an opening degree of at least one valve that adjusts a flow rate and a pressure of the air supplied to a fuel cell such that an operating point of the turbo compressor becomes a target operating point. The control unit sets the target operating point within an operating point range that is on the higher flow rate side than at least part of a first region where an amount of change in flow rate is larger than a predetermined value when a pressure ratio of the turbo compressor is changed by a predetermined amount at a same rotational speed, on a higher flow rate side than a surging region, when a predetermined condition is fulfilled.

2. 发明授权

US11569516B2 Fuel cell system 有权
公开(公告)号：US11569516B2
公开(公告)日：2023-01-31
申请号：US17538004
申请日：2021-11-30
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Nobukazu Mizuno , Shigeki Hasegawa , Miyu Haga , Seiichi Tanaka
IPC分类号： H01M8/04746 , H01M8/0438
摘要： A fuel cell system includes a fuel cell stack, a fuel gas supply path, an injector, an ejector, a circulation path, an outlet port pressure detection unit, and a control device. The control device stops driving the injector when an ejector outlet port pressure is equal to or more than a required upper limit value with the injector driven, and drives the injector when the ejector outlet port pressure is equal to or less than a required lower limit value with the injector stopped. The control device reduces the required upper limit value stepwise and reduces the required lower limit value stepwise in a range defined by a first target upper limit value and a second target upper limit value when a required load is varied from a first required load to a second required load and a load reduction amount is more than a first predetermined load.

3. 发明申请

US20200251760A1 HYDROGEN SUPPLY SYSTEM LOW PRESSURE STATE ESTIMATOR 审中-公开
公开(公告)号：US20200251760A1
公开(公告)日：2020-08-06
申请号：US16264461
申请日：2019-01-31
申请人： Toyota Motor Engineering & Manufacturing North America, Inc. , Toyota Jidosha Kabushiki Kaisha
发明人： Shigeki Hasegawa , Daniel Folick , Jared Farnsworth , Motoyuki Kimata
IPC分类号： H01M8/04746 , H01M8/0438 , H01M8/04119 , H01M8/04089
摘要： Methods, systems, and devices of a control system for gas flow. The control system controls gas flow through a fuel cell stack of a vehicle. The control system includes two or more components including one or more actuators and a fuel cell. The control system includes an electronic control unit connected to the two or more components. The control system is configured to determine initial values and previous timestep values. The control system is configured to determine or estimate a total pressure of the gas flow in each of the two or more components based on the initial values and the previous timestep values. The control system is configured to control the one or more actuators based on the total pressure of the gas flow in each of the two or more components.

4. 发明授权

US10290883B2 Fuel cell system and method of control of same 有权
公开(公告)号：US10290883B2
公开(公告)日：2019-05-14
申请号：US15501366
申请日：2016-02-12
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Hiromichi Sato , Shigeki Hasegawa , Atsuo Iio
IPC分类号： H01M8/04 , H01M8/04302 , H01M8/04225 , H01M8/04029 , H01M8/04007 , H01M8/04537 , H01M8/1018
摘要： A fuel cell system comprises a fuel cell stack, radiator, cooling water feed passage, cooling water discharge passage, bypass cooling water passage, deionizer, stack side cooling water pump, radiator side cooling water pump, and bypass cooling water control valve. The radiator side cooling water pump and bypass cooling water control valve are controlled to selectively perform one of a stack flow through mode where cooling water flows through at least the fuel cell stack and a stack bypass mode where cooling water does not substantially flow through the fuel cell stack but circulates through the radiator and the bypass cooling water passage.

5. 发明授权

US10122035B2 Fuel cell system 有权
公开(公告)号：US10122035B2
公开(公告)日：2018-11-06
申请号：US15608955
申请日：2017-05-30
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Shigeki Hasegawa , Masashi Toida
IPC分类号： H01M8/04 , H01M8/04746 , H01M8/0438 , H01M8/04537
摘要： A fuel cell system, comprising: a fuel cell stack configured to include a plurality of cells; a number “n” of injectors arranged in parallel to supply an anode gas to the fuel cell stack, where the number “n” represents an integral number of not less than 2; a cell voltage meter configured to measure a voltage of at least one cell among the plurality of cells; a pressure gauge configured to measure a supply pressure that is a pressure of the anode gas supplied to the fuel cell stack; and a controller configured to respectively input control signals into the number “n” of injectors by using the voltage measured by the cell voltage meter and the supply pressure measured by the pressure gauge and to control a driving number that denotes a number of injectors to be driven among the number “n” of injectors, wherein when the measured voltage is equal to or higher than a predetermined voltage value, the controller is configured to set a target value of the supply pressure and the driving number according to a required electric power, when the measured voltage is lower than the predetermined voltage value, the controller is configured to perform a first control that fixes the driving number to the number “n” while setting a target value for purging that is a higher value than the target value according to the required electric power to the target value of the supply pressure, and when the supply pressure reaches the target value for purging by the first control, the controller is configured to perform a second control that cancels fixation of the driving number while continuing setting the target value for purging to the target value of the supply pressure.

6. 发明申请

US20140318696A1 METHOD FOR PRODUCING MEMBRANE ELECTRODE ASSEMBLY 有权
标题翻译：生产膜电极组件的方法
公开(公告)号：US20140318696A1
公开(公告)日：2014-10-30
申请号：US14356267
申请日：2012-11-01
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Keita Yamaue , Shigeaki Murata , Masahiro Imanishi , Shigeki Hasegawa , Ryoichi Nanba , Kyohei Kadota
IPC分类号： H01M8/10
CPC分类号： H01M8/1004 , H01M4/8605 , H01M4/8814 , H01M4/96 , H01M8/0234 , Y02E60/521 , Y02P70/56
摘要： An object of the present invention is to provide a method for producing a membrane electrode assembly with excellent electrode transfer ability to electrolyte membrane. Disclosed is a method for producing a membrane electrode assembly, the assembly comprising an electrolyte membrane and an electrode which are attached to each other, the method comprising: a hot pressing step in which an electrolyte membrane and an electrode, the electrode comprising an electroconductive material and an electrolyte resin and being formed on a flexible substrate, are hot pressed to produce a laminate in which the electrolyte membrane, the electrode and the flexible substrate are laminated in this order, and a bending step in which the laminate is bent so that the flexible substrate side becomes concave, thereby removing the flexible substrate from the electrode.
摘要翻译：本发明的目的是提供一种具有优异的电解质膜电极转移能力的膜电极组件的制造方法。公开了一种用于制造膜电极组件的方法，该组件包括彼此连接的电解质膜和电极，该方法包括：热压步骤，其中电解质膜和电极包括导电材料和在柔性基板上形成的电解质树脂被热压以制造其中电解质膜，电极和柔性基板依次层叠的层压体，以及弯曲步骤，其中层压体被弯曲，使得柔性基板侧变成凹形，从而从电极移除柔性基板。

7. 发明申请

US20220285707A1 CONTROL SYSTEMS AND METHODS TO MEET FUEL CELL FUEL DEMAND 有权
公开(公告)号：US20220285707A1
公开(公告)日：2022-09-08
申请号：US17191658
申请日：2021-03-03
申请人： Toyota Motor Engineering & Manufacturing North America, Inc. , Toyota Jidosha Kabushiki Kaisha
发明人： Jared M. Farnsworth , Daniel C. Folick , Shigeki Hasegawa , Nobukazu Mizuno
IPC分类号： H01M8/04746 , H01M8/04119 , H01M8/04223 , H01M8/04858
摘要： Systems and methods for controlling fluid flow in a fuel cell circuit of a vehicle. A system may have a fuel cell stack configured to receive hydrogen gas. The system may have a current sensor configured to detect current flowing through the fuel cell stack. The system may have a plurality of actuators, which may include at least one injector, a pump, and a shut valve. The system may have an electronic control unit (ECU). The ECU may estimate pressures of the hydrogen gas and non-hydrogen gases in the circuit. The ECU may determine a current increase rate based on the detected current. The ECU may apply a compensatory hydrogen gas stoic to a base hydrogen gas stoic to meet a target hydrogen gas stoic by controlling one or more of the actuators based on the estimated pressures when the current increase rate is above a predetermined threshold value.

8. 发明授权

US10916788B2 Hydrogen supply system low pressure state estimator 有权
公开(公告)号：US10916788B2
公开(公告)日：2021-02-09
申请号：US16264461
申请日：2019-01-31
申请人： Toyota Motor Engineering & Manufacturing North America, Inc. , Toyota Jidosha Kabushiki Kaisha
发明人： Shigeki Hasegawa , Daniel Folick , Jared Farnsworth , Motoyuki Kimata
IPC分类号： H01M8/04746 , H01M8/0438 , H01M8/04089 , H01M8/04119
摘要： Methods, systems, and devices of a control system for gas flow. The control system controls gas flow through a fuel cell stack of a vehicle. The control system includes two or more components including one or more actuators and a fuel cell. The control system includes an electronic control unit connected to the two or more components. The control system is configured to determine initial values and previous timestep values. The control system is configured to determine or estimate a total pressure of the gas flow in each of the two or more components based on the initial values and the previous timestep values. The control system is configured to control the one or more actuators based on the total pressure of the gas flow in each of the two or more components.

9. 发明授权

US10892500B2 Fuel cell system 有权
公开(公告)号：US10892500B2
公开(公告)日：2021-01-12
申请号：US15936566
申请日：2018-03-27
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： Chiaki Mizutani , Yuji Ishikawa , Shigeki Hasegawa
IPC分类号： H01M8/04492 , H01M8/04537 , H01M8/04992 , H01M8/1018
摘要： A measurement error of a water content depends on a phase difference of a low frequency. The low frequency is a lower one of two frequencies in an alternating current signal used for calculating an impedance of a cell. The phase difference is a difference between a phase of a current value of an alternating current signal applied to a fuel cell stack and a phase of a voltage value of output current. The calculated value of the water content is not used when the phase difference of the low frequency indicates that the measurement error may largely fluctuate.

10. 发明申请

US20200243880A1 TURBO COMPRESSOR PATH AND RATE CONTROL 审中-公开
公开(公告)号：US20200243880A1
公开(公告)日：2020-07-30
申请号：US16262792
申请日：2019-01-30
申请人： Toyota Motor Engineering & Manufacturing North America, Inc. , Toyota Jidosha Kabushiki Kaisha
发明人： Jared M. Farnsworth , Daniel Folick , Shigeki Hasegawa , Naoki Tomi
IPC分类号： H01M8/04111 , H01M8/0438 , H01M8/04746
摘要： Methods, systems, and devices of a control system. The control system includes a fuel cell stack. The control system includes a compressor that is configured to control and provide a total air flow within the vehicle. The compressor has an air pressure ratio and an air flow rate and operates at a speed. The control system includes an electronic control unit coupled to the fuel cell stack and the compressor. The electronic control unit is configured to determine a path associated with one or more adjustments to the air pressure ratio or the air flow rate. The electronic control unit is configured to determine a rate associated with the one or more adjustments based on the path and control at least one of the air pressure ratio, the speed or the air flow rate to operate the compressor based on the path and the rate.

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