US 2026/0121090 A1Published application

Vehicle fuel cell wakeup to condition operational strategy

AssigneeFca US LLC

InventorsMagdalena Krasny, Jacob Belin, Jash Murjani, Rudolf Kharpuri, Marc S. Reischmann, Andrew M. Huisjen

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Abstract

A fuel cell wakeup and conditioning system for a fuel cell electric vehicle (FCEV) initiate a wakeup timer for periodically waking up a fuel cell power system (FCPS) to perform at least one of thermal and humidity conditioning, based on the wakeup timer, a state of charge (SOC) of a high voltage battery system of the FCEV, and an ambient temperature, determine whether to perform (i) only thermal conditioning of the FCPS or (ii) both thermal and humidity conditioning of the FCPS and, based on the determination, control only a thermal conditioning system to perform thermal conditioning of the FCPS or (ii) both the thermal conditioning system and a humidity conditioning system to perform thermal and humidity conditioning of the FCPS.

Claims18

Dependent claims

A fuel cell wakeup and conditioning system for a fuel cell electric vehicle (FCEV), the fuel cell wakeup and conditioning system comprising:

a thermal conditioning system configured to control a temperature of a fuel cell power system (FCPS) of the FCEV, wherein the FCPS comprises a hydrogen (H2) fuel cell stack that is configured to selectively generate electrical energy for recharging a high voltage battery system of the FCEV;
a humidity conditioning system configured to control a humidity of the FCPS;
and
a control system configured to:
initiate a wakeup timer for periodically waking up the FCPS to perform at least one of thermal and humidity conditioning;
based on the wakeup timer, a state of charge (SOC) of the high voltage battery system of the FCEV, and an ambient temperature, determine whether to perform (i) only thermal conditioning of the FCPS or (ii) both thermal and humidity conditioning of the FCPS;
and
based on the determination, control only the thermal conditioning system to perform thermal conditioning of the FCPS or (ii) both the thermal and humidity conditioning systems to perform thermal and humidity conditioning of the FCPS.

5 more elements

A fuel cell wakeup and conditioning method for a fuel cell electric vehicle (FCEV), the fuel cell wakeup and conditioning method comprising:

providing a thermal conditioning system configured to control a temperature of a fuel cell power system (FCPS) of the FCEV, wherein the FCPS comprises a hydrogen (H2) fuel cell stack that is configured to selectively generate electrical energy for recharging a high voltage battery system of the FCEV;
providing a humidity conditioning system configured to control a humidity of the FCPS;
initiating, by a control system of the FCEV, a wakeup timer for periodically waking up the FCPS to perform at least one of thermal and humidity conditioning;
based on the wakeup timer, a state of charge (SOC) of the high voltage battery system of the FCEV, and an ambient temperature, determining, by the control system, whether to perform (i) only thermal conditioning of the FCPS or (ii) both thermal and humidity conditioning of the FCPS;
and
based on the determination, controlling, by the control system, only the thermal conditioning system to perform thermal conditioning of the FCPS or (ii) both the thermal and humidity conditioning systems to perform thermal and humidity conditioning of the FCPS.

3 more elements

Dependencies are inferred from the claim text.