US 12,444,939 B2
Systems and methods for integrated fuel cell stack and battery management for transportation use
Valery Miftakhov, San Carlos, CA (US)
Assigned to ZeroAvia, Inc., Hollister, CA (US)
Appl. No. 18/044,064
Filed by ZeroAvia, Inc., Hollister, CA (US)
PCT Filed Sep. 9, 2021, PCT No. PCT/US2021/049635
§ 371(c)(1), (2) Date Mar. 3, 2023,
PCT Pub. No. WO2022/056107, PCT Pub. Date Mar. 17, 2022.
Claims priority of provisional application 63/076,382, filed on Sep. 10, 2020.
Prior Publication US 2023/0352936 A1, Nov. 2, 2023
Int. Cl. H02J 1/10 (2006.01)
CPC H02J 1/108 (2013.01) [H02J 1/102 (2013.01); H02J 2300/30 (2020.01)] 15 Claims
OG exemplary drawing
 
1. An integrated fuel cell power delivery system, the system comprising:
a first power source configured to supply power to a propulsion inverter;
a second power source configured to supply power to the propulsion inverter;
a disconnect operably connected to the second power source;
a bypass diode operably connected to the first power source and the second power source,
wherein the bypass diode and the disconnect selectively provides power to the propulsion inverter by at least one of the first power source or the second power source;
a sensor that detects an output voltage of the integrated fuel cell power system;
a processor; and
a memory, which includes instructions stored thereon, which when executed by the processor, cause the integrated fuel cell power system to:
access a first signal from the sensor;
determine if the accessed first signal is greater than a first threshold voltage; and
operably disconnect an output of at least one of the first power source or the second power source to the integrated fuel cell power system by the disconnect based on the determination;
the system further comprising an electronic voltage limiting device configured to selectively provide a load on at least one of the first power source or second power source;
wherein the instructions, when executed by the processor, further cause the integrated fuel cell power system to:
access the signal from the sensor;
determine if the accessed first signal is greater than a third threshold voltage; and
selectively provide a load, by the electronic voltage limiting device, to at least one of the first power source or second power source based on the determination,
wherein the voltage limiting device includes a calibrated load configured to load the output of the integrated fuel cell power system in a case where the output voltage exceeds the predetermined third threshold voltage.