William A Pettit

US Patent:

20210380008, Dec 9, 2021

Filed:

Aug 24, 2021

Appl. No.:

17/410085

Inventors:

- Detroit MI, US
Matthew C. Kirklin - Lake Orion MI, US
Margarita M. Mann - Royal Oak MI, US
William H. Pettit - Rochester NY, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

International Classification:

B60L 53/60
H01M 10/44
H01M 8/04828
B60L 53/35
B60L 53/54
B60L 53/10

Abstract:

A fuel cell system includes a fuel cell generator, a rechargeable energy storage circuit, an auxiliary load, a converter circuit, and a switch circuit. The fuel cell generator is operable to generate electrical power in a stack output signal. The auxiliary load is powered by the rechargeable energy storage circuit while in a first mode, and powered by a local signal while in a second mode. The converter circuit is operable to convert the stack output signal into a plurality of recharge signals while in the first mode and in the second mode, and convert the stack output signal into the local signal while in the second mode. The switch circuit is operable switch the plurality of recharge signals to one or more electric vehicles, and switch the local signal to the auxiliary load while in the second mode.

US Patent:

20210155108, May 27, 2021

Filed:

Nov 22, 2019

Appl. No.:

16/691921

Inventors:

- Detroit MI, US
Matthew C. Kirklin - Lake Orion MI, US
Margarita M. Mann - Royal Oak MI, US
William H. Pettit - Rochester NY, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

International Classification:

B60L 53/35
H01M 10/44
B60L 53/54
B60L 53/30
B60L 53/12
B60L 53/14
B62D 65/10
B62D 65/12

Abstract:

Presented are mobile charging stations for recharging electrified vehicles, methods for making/using such mobile charging stations, and parking facilities equipped with such mobile charging stations. A mobile charging station includes a frame with multiple drive wheels and a prime mover operable to drive the wheels to propel the charging station. A hydrogen storage container and fuel cell are mounted to the frame. The fuel cell oxidizes hydrogen received from the storage container to generate electrical current. An electrical coupling mechanism connects the fuel cell to a traction battery pack of an electric-drive vehicle. A resident or remote controller is programmed to receive charge requests to recharge vehicles, and responsively determines path plan data for the mobile charging station. The controller commands the prime mover to propel the mobile charging station from the charger's origin to a charger destination, and enables the fuel cell to transmit electrical current to the vehicle.

US Patent:

20200376972, Dec 3, 2020

Filed:

May 28, 2019

Appl. No.:

16/424039

Inventors:

- Detroit MI, US
Matthew C. Kirklin - Lake Orion MI, US
Margarita M. Mann - Royal Oak MI, US
William H. Pettit - Rochester NY, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

International Classification:

B60L 53/30
B60L 53/54
B60L 53/16
B60L 53/68
G01R 31/382
H01M 16/00

Abstract:

A system for matching a plurality of electrically powered vehicles to a plurality of available mobile chargers includes a computerized server device programmed to monitor optimization inputs related to the plurality of available mobile chargers, monitor optimization inputs related to the plurality of electrically powered vehicles operated by a plurality of customers, determine a lowest-cost-based ranked listing of matched charger and vehicle pairings for each of the plurality of customers based upon the optimization inputs related to the plurality of available chargers and the optimization inputs related to the plurality of the electrically powered vehicles, present the ranked listing of matched charger and vehicle pairings to each of the customers, monitor selection by each of the plurality of customers of a desired charger for the customer from the ranked listing, and direct each of the plurality of customers to the desired charger for the customer.

US Patent:

20200376975, Dec 3, 2020

Filed:

May 28, 2019

Appl. No.:

16/424059

Inventors:

- Detroit MI, US
Matthew C. Kirklin - Lake Orion MI, US
Margarita M. Mann - Royal Oak MI, US
William H. Pettit - Rochester NY, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

B60L 53/60
H01M 10/44
H01M 8/04828
B60L 53/10
B60L 53/35
B60L 53/54

Abstract:

A mobile fuel cell system includes a fuel cell generator generating a stack output signal. Multiple boost converter circuits converting the stack output signal into multiple recharge signals while in a first mode. A boost converter circuit converting the stack output signal into a local signal while in a second mode. Multiple charging handles connectable to multiple electric vehicles. A switch circuit presenting the recharge signals to the charging handles, remove the recharge signals from the charging handles and present the local signal while in the second mode. An auxiliary load may be connected to the fuel cell generator and the switch circuit. A rechargeable energy storage circuit powers the auxiliary load while in the first mode and stores energy received in the local signal while in the second mode. The auxiliary load is powered with the local signal while in the second mode.