Aaron A Walker

US Patent:

20220250480, Aug 11, 2022

Filed:

Feb 5, 2021

Appl. No.:

17/169077

Inventors:

- Dearborn MI, US
Edward Ball - London, GB
Aaron Walker - Auburn Hills MI, US

International Classification:

B60L 3/00
H02M 7/00
B60R 16/023
H01R 25/16
H02M 1/15

Abstract:

Systems and methods for operating an electric power distribution bus of an electric or hybrid vehicle are described. In one example, an output of an electric power consumer is decoupled from other electric power consumers so that electric current drawn from the electric power distribution bus is lowered while the electric power consumer provides a capacitive load to the electric power distribution bus, thereby reducing voltage ripple associated with the electric power distribution bus.

US Patent:

20220219542, Jul 14, 2022

Filed:

Jan 13, 2021

Appl. No.:

17/147608

Inventors:

- Dearborn MI, US
Chingchi CHEN - Ann Arbor MI, US
Benjamin A. TABATOWSKI-BUSH - Ann Arbor MI, US
Aaron WALKER - Auburn Hills MI, US
Rui WANG - Canton MI, US
Xianzhi GONG - Novi MI, US
Xu WANG - Northville MI, US
John Paul GIBEAU - Canton MI, US

Assignee:

FORD GLOBAL TECHNOLOGIES, LLC - Dearborn MI

International Classification:

B60L 3/00
G01R 31/00
G01R 31/327

Abstract:

A power system includes a battery and a controller. The controller inhibits charge of the battery according to voltage or current values sensed before and after contactors electrically connected to the battery are commanded to open and indicating that a leakage resistance associated with one of the contactors increases after the one of contactors is commanded to open, and a duration of a continuous voltage drop across another of the contactors after the another of the contactors is commanded to open exceeds a threshold.

US Patent:

20210053462, Feb 25, 2021

Filed:

Aug 22, 2019

Appl. No.:

16/547827

Inventors:

- Dearborn MI, US
Baojin Wang - Ypsilanti MI, US
John Paul Gibeau - Canton MI, US
Ai Keramidas - West Bloomfield MI, US
Kimberley King - Northville MI, US
Daniel Paul Roberts - Livonia MI, US
Aaron Walker - Auburn Hills MI, US

International Classification:

B60L 58/22
H02J 7/00

Abstract:

A vehicle has a battery including a plurality of cells connected in series, and a battery management integrated circuit including a plurality of inputs each being directly electrically connected to a terminal of one of the cells via an electrical path that includes a thse and a resistor connected in series. The battery management integrated circuit farther includes a top input directly electrically connected to a positive output of the battery and configured to receive power from the battery that is defined by a current having a magnitude that is at least an order of magnitude greater than current received by the inputs and a voltage equal to a sum of voltages of all the cells. The battery management integrated circuit is configured to calculate a voltage difference between one of the inputs and an adjacent one of the inputs to determine a voltage of a top cell of the battery cells and to correct the voltage of the top cell to farm a corrected voltage as a sum of the voltage of the top cell and a calculated voltage drop across the fuse in the electrical path between the top cell and the one of the inputs. The vehicle further has a controller programmed to balance the cells according to the corrected voltage of the top cell.