Christopher G Curtis

US Patent:

20180257488, Sep 13, 2018

Filed:

Mar 2, 2018

Appl. No.:

15/910073

Inventors:

- Troy MI, US
Yong Qiang Wang - Troy MI, US
Christopher Soave - Brighton MI, US
Christopher Curtis - Orion MI, US
Scott Hengy - Davison MI, US

International Classification:

B60K 28/12
F16H 59/08
B60Q 1/26

Abstract:

A rotary shifter with 360 rotation in each of clockwise and counter clockwise rotating directions. The shifter includes a package housing with a bezel cover. A cylindrical shaped plunger housing is secured to a rotary knob supported atop the housing and which is selectively rotatable in the clockwise direction from a Park gear position, in succession, to each of a Reverse gear position, a Neutral gear position and at least one Drive gear position, with further clockwise rotation preventing movement beyond a final one of the Drive gear positions. The knob is further selectively rotatable in a counter clockwise direction to return to the Park gear position, with additional permitted counter-clockwise rotation retaining the shifter in the Park gear position.

US Patent:

20180259062, Sep 13, 2018

Filed:

Mar 2, 2018

Appl. No.:

15/910091

Inventors:

- Troy MI, US
Brian Mayville - Northville MI, US
Christopher Soave - Brighton MI, US
Christopher Curtis - Orion MI, US
Scott Hengy - Davison MI, US

International Classification:

F16H 59/08
F16H 61/24

Abstract:

A rotary shifter having a housing with a bezel cover. An auto return to park mechanism is provided and includes a knob supported upon the bezel cover. A rotary disk stopper is secured to the knob and seated within the housing, a spring rotationally biasing the end stopper relative to the housing. A solenoid is supported within the housing and engages the stopper in a first condition limiting the knob to manual rotary shifting between Park, Reverse, Neutral and Drive gear shift positions. A PCB board is integrated into the housing and communicable with at least one external sensor associated with a driver exit condition. Upon a triggering of the exit condition with the shifter in other than a Park position, the solenoid is energized to disengage the end stopper in a second release condition permitting the spring to reset the stopper and knob to the Park position.

US Patent:

20170271888, Sep 21, 2017

Filed:

Mar 15, 2016

Appl. No.:

15/070834

Inventors:

- Seoul, KR
Christopher E. Curtis - Rochester MI, US

International Classification:

H02J 7/00
G01R 31/36

Abstract:

A battery system and a method for determining an open circuit fault condition in a battery module are provided. The method includes measuring a first voltage between first and second electrical sense lines while a first transistor in a first cell balancing circuit is turned off, and measuring a second voltage between the first and second electrical sense lines while the first transistor is turned on. The method further includes retrieving a first resistance value from a table stored in a memory device. The method further includes determining a first cell balancing current based on the first and second voltages and the first resistance value. The method further includes determining a first open circuit fault condition between the first battery cell and the first cell balancing circuit if the first cell balancing current is greater than a first threshold current.