Patent ID: 11862827
Assignee: FORD GLOBAL TECHNOLOGIES, LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 9:
10. A vehicle comprising:
a fuel-cell system including a fuel cell, a hydrogen source, a hydrogen ejector, and a purge valve; and
a controller programmed to:
responsive to a purge request and a pitch of the vehicle being less than a threshold, (i) open the hydrogen ejector and (ii) open the purge valve for a first duration of time,
responsive to the purge request and the pitch of the vehicle exceeding the threshold, (i) open the hydrogen ejector and (ii) open the purge valve for a second duration of time that is longer than the first duration of time,
responsive to a request for freeze preparation and the pitch of the vehicle being less than the threshold, (i) open the hydrogen ejector and (ii) open the purge valve for a third duration of time, and
responsive to a request for the freeze preparation and the pitch of the vehicle exceeding the threshold, (i) open the hydrogen ejector and (ii) open the purge valve for a fourth duration of time that is greater than the third duration of time.