The hydrogen leakage sensor detects hydrogen in real time with high accuracy Can be used in the passenger compartment, near the tank, under the hood or in the FC stack Robust design can withstand long-term use
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Fuel Cell Control Unit World Smart Energy Week 2025 March Schaeffler AG
The Fuel Cell Control Unit (FCCU) controls the actuators of the fuel cell system based on the various sensor signals it reads, ensuring the appropriate supply of hydrogen, air, and cooling
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Exhaust-gas treatment for hydrogen engines and hydrogen storage system IAA Transportation 2024 Bosch (Robert Bosch GmbH)
1. Camshaft position sensor 2. Ignition system 3. Hydrogen direct injector 4. Pressure-based air-flow meter 5. Engine 6. Hydrogen temperature sensor 7. Medium pressure sensor 8. Hydrogen rail for direct injection 9. Throttle valve 10. Hot-film air-mass meter 11. Manifold and boost-pressure sensor with temperature sensor 12. Hydrogen rail port-fuel injection 13. Electronic engine control unit 14. Hydrogen port-fuel injector 15. Crankshaft speed sensor 16. Temperature sensor
7. Vehicle control unit 8. Electronic engine control unit 10. Natural-gas pressure and temperature sensor 11. Natural-gas distributor 16. Natural-gas distributor with high-flow injector 18. High-flow injector 19. Exhaust-gas recirculation metering and mixing module The integration cost of Bosch's hydrogen injection technology for port injection is relatively low, allowing hydrogen-fueled internal combustion engines (ICE) vehicles to quickly enter the market. Its hydrogen direct injection technology product portfolio can effectively support the further reduction of ICE emissions.
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System components of the fuel cell solution IAA Mobility 2023 Bosch (Robert Bosch GmbH)
-The fuel cell stack core module consists of the stack including housing and the anode sub module, which is composed of several Bosch products: the hydrogen gas injector, the anode recirculation blower, the jet pump, the low pressure sensor and the medium pressure sensor. -Development status: Validated according to automotive standards and ready for mass production
A system that controls the filling of hydrogen tanks and the supply of hydrogen to consuming systems such as fuel cells and hydrogen engines. Consists of: - Tank valves and tank end plugs - Tank manifold with high pressure sensor - Mechanical pressure regulators (single and double stage) - The SOP for some parts of the control unit, including software, will be in mid-2023
The system controls the filling of the tanks and the supply of hydrogen to the fuel cell or H2 engine consumer systems and consists of - Tank valve and plug, which control the flow of hydrogen in the hydrogen storage modules and in the high pressure system - Tank manifold with sensor, distributes the hydrogen for filling the tanks and for consumption by the fuel cell or the H2 engine -Mechanical pressure regulator, which reduces the pressure of the hydrogen storage system from the typical level of 350 or 750 bar to the operating pressure of the fuel cell application or the H2 engine - Control unit including software, which controls and monitors the various operating modes of the hydrogen storage systems, such as filling, storage and the supply to the consumers.
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Fuel cell control unit IAA TRANSPORTATION 2022 Bosch (Robert Bosch GmbH)
Taking the electrical and thermal power requirements from the vehicle control unit and the system’s current sensor values, the FCCU controls and monitors the connected system components, such as the hydrogen gas injector, electric air compressor, recirculation pump, sensors, etc., in order for the fuel cell to provide the requested amount of electrical power. Technical data Multicore µC: 200 - 300 MHz Flash: 6 - 16MB
-Hydrogen leaks are detected by utilizing hydrogen’s heat transfer characteristics. -Highly accurate detection is possible with the temperature / humidity correction functions. -By adopting MEMS microheater, low power consumption, high-speed start-up, and high-speed response are achieved. -Compared to the catalyst combustion type, there is no deterioration such as due to poisoning, and the sensor can be used even under harsh conditions.
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