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公开(公告)号：US20230268526A1
公开(公告)日：2023-08-24
申请号：US18172055
申请日：2023-02-21
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
Inventor： Jason MEYER , Rajit JOHRI , Stanley L. BOWER, JR.
IPC: H01M8/04223 , H01M8/04007 , H01M8/04302 , H01M8/04701 , H01M8/0432 , H01M8/04225 , H01M8/04955
CPC classification number: H01M8/04253 , H01M8/04007 , H01M8/04225 , H01M8/04231 , H01M8/04268 , H01M8/04302 , H01M8/0432 , H01M8/04723 , H01M8/04955 , H01M2250/20
Abstract: A protection system for a fuel cell is provided that has two different modes of operation. The protection system includes a fuel cell, a cooling system for the fuel cell that controls the temperature of the fuel cell responsive to a controller. The controller is operable in a first mode of operation when a time T for the next start-up is not known and a second mode of operation when the time T for the next start-up is known. In the first mode, a time TF is the time an estimated future ambient temperature is estimated to fall to near freezing wherein at TF the cooling system purges the fuel cell. In the second mode, at TF the cooling system turns on without starting the fuel cell. The controller turns of the cooling system when the fuel cell stack is warmed to a nominal temperature.
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公开(公告)号：US20230264595A1
公开(公告)日：2023-08-24
申请号：US17676715
申请日：2022-02-21
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
Inventor： Naginder GOGNA , Jason MEYER , Walter Joseph ORTMANN , Stanley L. BOWER, JR. , Rajit JOHRI
Abstract: A fuel cell and battery power management system for a fuel cell-powered vehicle includes an electric traction motor, a traction battery in electrical communication with the electric traction motor, a fuel cell stack in electrical communication with the traction battery and the electric traction motor, and a vehicle control system. The vehicle control system is configured to operate the vehicle with at a first discharge power level and a first charging power level if fuel cell power is sufficient alone to navigate the uphill grade and to build up battery state of charge by charging the traction battery at a second charging power level when the vehicle is approaching an uphill grade if fuel cell power is not sufficient alone to navigate the uphill grade. The vehicle control system is further configured to initiate proactive depletion of the battery SOC to enable powertrain braking and to provide regenerative power.
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公开(公告)号：US20230264572A1
公开(公告)日：2023-08-24
申请号：US18111273
申请日：2023-02-17
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
Inventor： Jason MEYER , Rajit JOHRI , Stanley L. BOWER, JR.
IPC: B60L3/04 , H01M8/04858 , H01M8/04228 , B60L58/40 , B60L50/75
CPC classification number: B60L3/04 , H01M8/04925 , H01M8/04228 , B60L58/40 , B60L50/75 , H01M2250/20 , H01M2008/1095
Abstract: In at least one embodiment, a vehicle system including a fuel cell stack and a least one controller. The fuel cell stack configured to provide energy for a vehicle. The at least one controller is programmed to control the fuel cell stack to enter into a zero gross power (ZGP) mode responsive to at least the vehicle exhibiting a negative torque demand for a period that is less than a maximum time duration. The at least one controller is further programmed to control the fuel cell stack to enter into a fuel cell shutdown mode responsive to the at least the vehicle exhibiting a negative torque demand for a period that is greater than maximum time duration.
