Kenneth M Lang

US Patent:

7925405, Apr 12, 2011

Filed:

Jun 29, 2007

Appl. No.:

11/771373

Inventors:

Clinton E. Carey - Monroe MI, US
Craig S. Ross - Ypsilanti MI, US
Edmund F. Gaffney - White Lake MI, US
Todd C. Schanz - Willis MI, US
Kenneth K. Lang - Saline MI, US
Paul A. Grougan - Novi MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

F16H 48/12
B60K 17/35
G06F 19/00

US Classification:

701 51, 701 69, 701 89, 477176

Abstract:

A torque distribution system for a vehicle permits the transfer of torque between vehicle wheels using a selectively engagable clutch that is hydraulically engaged using hydraulic pressure provided by a hydraulic transmission pump driven by the engine, allowing for enhanced system functionality and reduced part content in comparison with known torque distribution systems. The system may include an “active-on-demand” clutch that is selectively engagable to transfer torque between a front differential and a rear differential (thereby transferring torque from the front wheels to the rear wheels) as well as an electronically-limited slip differential clutch selectively engagable to transfer torque from one front wheel to the other front wheel through the front differential. Utilization of the transmission hydraulic pump allows pressure to be provided to engage the clutch even when the wheels are stationary, i. e. , to launch the vehicle.

US Patent:

8306686, Nov 6, 2012

Filed:

Apr 23, 2009

Appl. No.:

12/428930

Inventors:

Randall B. Dlugoss - Royal Oak MI, US
Kenneth K. Lang - Saline MI, US

International Classification:

G01M 17/00

US Classification:

701 291, 701 292, 701 293, 701 296, 701 307, 701 324

Abstract:

A vehicle monitoring system comprises a calculation module, an abnormal usage module, and memory. The calculation module calculates a vehicle usage value based on global positioning system (GPS) data and at least one data input, and calculates an expected vehicle usage value based on known vehicle characteristics and the GPS data. The abnormal usage module compares the vehicle usage value and the expected vehicle usage value. The memory stores an indicator based on the comparison.

US Patent:

20120304960, Dec 6, 2012

Filed:

Jun 2, 2011

Appl. No.:

13/151692

Inventors:

Richard A. Weaver - Brighton MI, US
Kenneth K. Lang - Saline MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

F02D 41/12

US Classification:

123325

Abstract:

An engine control module includes a deceleration fuel cutoff (DFCO) module, an actuator control module, and a rolling neutral (RN) module. The DFCO module determines whether to disable provision of fuel to an engine when a vehicle speed is greater than zero and selectively generates a DFCO signal based on the determination. The actuator control module disables the provision of fuel to the engine when the DFCO signal is generated. The RN module selectively generates an RN mode signal in response to a determination that the DFCO module is not generating the DFCO signal. The actuator control module controls the provision of fuel to the engine based on a desired engine speed when the RN mode signal is generated. A transmission control module disengages first and second input clutches of a dual clutch transmission (DCT) to decouple the DCT from the engine when the RN mode signal is generated.

US Patent:

20130023381, Jan 24, 2013

Filed:

Jul 20, 2011

Appl. No.:

13/186855

Inventors:

Amin Abboud - Livonia MI, US
Kenneth K. Lang - Saline MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

International Classification:

B60W 10/02
B60W 30/00
B60W 10/04

US Classification:

477181

Abstract:

A vehicle having engine stop-start functionality includes a transmission, engine, and controller. The transmission includes a clutch, and the engine includes a crankshaft. The controller is in communication with the engine and the transmission, and is configured for detecting a commanded shut down of the engine, and then engaging the clutch to control a rate of deceleration of the crankshaft and stop the crankshaft within a calibrated range of a target stop position at the end of engine shut down. A method for controlling engine stop position includes detecting a commanded shut down of the engine, and engaging the clutch after detecting the commanded shut down to thereby control the rate of deceleration of the crankshaft and stop the crankshaft within a calibrated range of a target stop position at the end of shut down of the engine. The transmission may be automatic or it may be a dual-clutch transmission.

US Patent:

20130332039, Dec 12, 2013

Filed:

Jun 7, 2012

Appl. No.:

13/490619

Inventors:

Ronald F. Lochocki - Ypsilanti MI, US
Kenneth K. Lang - Saline MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

International Classification:

F16H 61/00

US Classification:

701 60

Abstract:

A method of controlling a vehicle includes detecting vibration in a drivetrain of the vehicle with a fore/aft accelerometer during a launch event. An operating regime of the vehicle is identified concurrently with the detected vibration when the detected vibration is outside a predefined allowable range. A control strategy of the drivetrain is adjusted to define a revised control strategy to avoid the identified operating regime. The revised control strategy is applied to control the drivetrain to mitigate vibration in the drivetrain.

US Patent:

20180202497, Jul 19, 2018

Filed:

Jan 16, 2017

Appl. No.:

15/406831

Inventors:

- Troy MI, US
Christopher Steele - Lake Orion MI, US
Dale Kwasniewski - Galesburg MI, US
Kenneth Lang - Goodrich MI, US

International Classification:

F16D 3/06

Abstract:

A slip yoke assembly having a shaft sleeve, a yoke sleeve, and a yoke. The yoke sleeve may have a set of yoke sleeve splines that may mate with a set of shaft sleeve splines and permit axial movement of the yoke sleeve with respect to the shaft sleeve. The yoke may be fixedly disposed on the yoke sleeve.