Fuel cell power management system

A method for fuel cell power management, the method comprising:

• with a processor comprising a memory:
• measuring a battery charge of a battery of the vehicle;
• measuring a speed of the vehicle;
• calculating a mapping of desired fuel cell power output as a function of the battery charge and the speed of the vehicle;
• using the mapping, the battery charge, the speed of the vehicle, and a motor power request, calculating a desired traction power output of a fuel cell of the vehicle;
• setting a traction power output of the fuel cell to the desired traction power output of the fuel cell;
• setting a desired traction power output of the battery to the motor power request minus the traction power output of the fuel cell;
• and
• setting a traction power output of the battery to the desired traction power output of the battery.

A fuel cell power management system, the system comprising:

• a vehicle;
• a fuel cell disposed within the vehicle;
• a battery disposed within the vehicle;
• a charge sensor operatively coupled to the battery and configured to measure a battery charge of the battery;
• a speedometer configured to measure a speed of the vehicle;
• a processor disposed within the vehicle and comprising a memory and configured to:
• calculate a mapping of desired fuel cell power output as a function of the battery charge and the speed of the vehicle;
• using the mapping, the battery charge, the speed of the vehicle, and a motor power request, calculate a desired traction power output of the fuel cell;
• set a desired traction power output of the battery to the motor power request minus the desired traction power output of the fuel cell;
• if the desired traction power output of the battery exceeds a maximum power output of the battery, increase the desired traction power output of the fuel cell by an amount equal to the exceedance;
• if the increased desired traction power output of the fuel cell exceeds a maximum power output of the fuel cell, set the desired traction power output of the fuel cell equal to the maximum power output of the fuel cell;
• set a traction power output of the fuel cell to the desired traction power output of the fuel cell;
• and
• set a traction power output of the battery to the desired traction power output of the battery.