Brian L Jacobs

US Patent:

20190368601, Dec 5, 2019

Filed:

May 20, 2019

Appl. No.:

16/416993

Inventors:

Brian J. Jacobs - Romeo MI, US
Joshua Haviland - Auburn Hills MI, US
Michael Sowards - Clarkson MI, US

International Classification:

F16H 61/00
F16H 63/34
F16H 61/02

Abstract:

A vehicle transmission braking mode comprises determining a set of available clutches of the plurality of clutches that are not being utilized for engagement of a particular forward gear of the plurality of forward gears, determining at least one of a modeled temperature, a measured temperature, and a modeled energy of each clutch of the set of available clutches to obtain a set of at least one of clutch temperatures and energies, and based on at least the set of available clutches and the set of at least one of clutch temperatures and energies, selectively operate the transmission in the transmission braking mode by at least partially applying at least one clutch of the set of available clutches to mitigate or prevent powerflow through the transmission and thereby decrease or maintain a speed of the vehicle and/or reduce acceleration of the vehicle.

US Patent:

20180328489, Nov 15, 2018

Filed:

Apr 24, 2018

Appl. No.:

15/961042

Inventors:

Caleb Coats - Royal Oak MI, US
James Ruiz - Utica MI, US
Michael Perecki - Brownstown MI, US
Brian J Jacobs - Romeo MI, US

International Classification:

F16H 63/34
B60T 1/00

Abstract:

A transmission includes a housing, a park gear, and a vehicle park shifting system configured to selectively engage the park gear to shift the transmission into and out of a park position. The vehicle park shifting system includes a linkage operably associated with the park gear, an actuator assembly operably coupled to the linkage and configured to be actuated to selectively move the linkage into and out of engagement with the park gear, and a lost motion manual shifter assembly operably coupled to the linkage and including a shift shaft disposed at least partially within the housing. The shift shaft is configured to couple to a manual park release system utilized to manually shift the transmission into and out of park without utilizing the actuator assembly. Actuation of the actuator assembly does not impart rotational movement to the shift shaft.

Address:

30084 Fairfield Dr, Chesterfield, MI 48051

Phone:

5862615127

VIN:

1GT220CGXCZ334435

Make:

GMC

Model:

SIERRA 2500HD

Year:

2012