×

Fuel cell system

  • US 10,644,334 B2
  • Filed: 06/22/2017
  • Issued: 05/05/2020
  • Est. Priority Date: 06/27/2016
  • Status: Active Grant
First Claim
Patent Images

1. A fuel cell system comprising:

  • a fuel cell;

    a battery;

    an inverter to which the fuel cell and the battery are connected in parallel;

    an air compressor that is connected to the inverter; and

    a control unit programmed to control driving of the air compressor by a current command value supplied to the inverter, whereinthe control unit is equipped with a first control unit programmed to control driving of the air compressor, and a second control unit programmed to control an electric power of the system,the first control unit is programmed to obtain a rotational speed of the air compressor based on a signal supplied from the inverter, transmit the rotational speed to the second control unit, and control the current command value supplied to the inverter based on a command torque transmitted from the second control unit, andthe second control unit is programmed to receive the rotational speed from the first control unit, receive a rotational speed command value of the air compressor corresponding to an output requirement of the fuel cell from a device outside the second control unit, obtain a rotational speed predicted value based on the received rotational speed command value, derive a limit torque of the air compressor from the obtained rotational speed predicted value, generate the command torque of the air compressor within a range of the derived limit torque, and transmit the generated command torque to the first control unit.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×