Fuel cell systems and aircraft

By using a dual 3-phase winding motor with dual inverters and an independent fuel cell and battery system in the aircraft, the problem of unstable fuel cell output in the aircraft is solved, and efficient power management and fuel utilization are achieved.

CN115241501BActive Publication Date: 2025-09-30TOYOTA JIDOSHA KK
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Patent Information

Application Number
CN202210409047.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2021-04-23
Filing Date
2022-04-19
Publication Date
2025-09-30
Estimated Expiration
2042-04-19

AI Technical Summary

Technical Problem

Fuel cells in aircraft are susceptible to weather effects, resulting in unstable output and low fuel efficiency, and need to be balanced as external inputs vary.

Method used

It uses a dual 3-phase winding motor with dual inverters and an independent fuel cell and battery system. The control unit switches the circuit according to different output requirements to ensure the independence and redundancy of the fuel cell and battery, thereby achieving battery charging and motor driving.

Benefits of technology

While ensuring power supply independence and redundancy, the power generation efficiency and fuel efficiency of the fuel cell are improved, and the aircraft can be stably driven under different load conditions.

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Abstract

The present invention provides a fuel cell system and aircraft capable of charging the battery while maintaining independence and redundancy between the fuel cell and battery as power sources. The fuel cell system is for an aircraft and is characterized by comprising a fuel cell, a battery, a motor, and a control unit. The motor is connected to the fuel cell and battery via an electrical circuit as an independent power source and has dual three-phase windings using a dual inverter. Upon receiving a normal output request from the motor, the control unit drives the motor with a predetermined first output from the fuel cell, and charges the battery using the torque generated by the motor.
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