US 11,987,149 B2
System and method for reducing battery overconsumption in a fuel cell system
Daniel Charles Folick, Long Beach, CA (US); Christopher M. Bulpitt, Los Angeles, CA (US); Jared Farnsworth, San Francisco, CA (US); and Andrew Sata, Irvine, CA (US)
Assigned to Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US)
Filed by Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US)
Filed on Aug. 18, 2021, as Appl. No. 17/405,841.
Prior Publication US 2023/0060085 A1, Feb. 23, 2023
Int. Cl. B60L 58/40 (2019.01); G01R 31/382 (2019.01)
CPC B60L 58/40 (2019.02) [G01R 31/382 (2019.01); H01M 2250/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for reducing overconsumption of power from a vehicular power source, the system comprising:
a power source including:
a battery configured to store energy and having a state of charge (SOC), and
a fuel cell stack configured to generate electricity at least one of to be utilized by a motor or to be stored in the battery; and
a power source electronic control unit (ECU) coupled to the power source and configured to:
receive a power request corresponding to a requested amount of power from the power source,
determine a fuel cell power amount corresponding to an amount of the electricity generated by the fuel cell stack to achieve the requested amount of power,
determine an overconsumption event when a current power consumption corresponding to a total amount of power being drawn from the power source is greater than the requested amount of power of the power request due to a miscommunication between the power source and one or more vehicle components causing the power request, and
increase the fuel cell power amount in response to determining the overconsumption event.