Joe A Torres

US Patent:

20080090688, Apr 17, 2008

Filed:

Oct 13, 2006

Appl. No.:

11/580663

Inventors:

Joe J. Torres - Dearborn MI, US
John O'Rear - Whitmore Lake MI, US
Peter J. Barrette - Ann Arbor MI, US
Patrick Meloche - Northvile MI, US
Dana J. Katinas - Novi MI, US

International Classification:

F16H 47/08

US Classification:

475 35

Abstract:

A motor vehicle driveline that can transmits power in a 4×4 mode includes two front wheels, a rear drive shaft, a differential mechanism for transmitting power to two rear axle shafts connected driveably through the differential to the rear driveshaft, and a clutch for engaging and disengaging a drive connection in the differential mechanism. A method for controlling operation of the clutch includes the steps of operating the driveline in 4×4 mode, determining a current accelerator pedal position, determining whether a current accelerator pedal position is less than a reference position for a predetermined period, determining a current speed of each front wheel of the vehicle, determining whether a current speed difference between the front wheels of the vehicle is less than a reference wheel slip for a first predetermined period, determining during a second predetermined period whether a current time rate of speed change of the rear drive shaft is less than a reference rear wheel slip. The clutch is prevented from being engaged if either the speed difference exceeds the reference speed difference, or the time rate of speed change of the rear drive shaft is greater than a reference rear wheel slip. Otherwise, the clutch is engaged.

US Patent:

20210078581, Mar 18, 2021

Filed:

Sep 12, 2019

Appl. No.:

16/569547

Inventors:

- Dearborn MI, US
Joe Jay Torres - Dearborn MI, US
Lucian Lippok - Koln, DE

International Classification:

B60W 30/18
B60L 50/50
B60W 50/038

Abstract:

Methods and system are described for controlling wheel slip of a four wheel drive vehicle. The methods and system may be applied to an electric vehicle or a hybrid vehicle. The method and system provide for operating vehicle propulsion sources in speed and torque control modes to manage wheel slip.

US Patent:

20200070809, Mar 5, 2020

Filed:

Aug 30, 2018

Appl. No.:

16/117459

Inventors:

- Dearborn MI, US
Joe Jay Torres - Dearborn MI, US
Peter James Barrette - Jupiter FL, US
Richard David Bruns - Milford MI, US
Corwin Stout - Ann Arbor MI, US
Rajit Johri - Canton MI, US

International Classification:

B60W 20/17
B60K 6/52
B60K 6/445
B60W 10/08
B60W 10/119
B60W 10/06
B60W 30/20

Abstract:

One axle of a hybrid vehicle is powered by an electric motor while a second axle of the vehicle is powered by a powertrain that includes an internal combustion engine. The electrically driven axle can be controlled in a speed control mode or in a torque control mode based on a driver demanded torque. The speed control mode is used when slip is detected at the electrically driven axle. The torque control mode is used when the electrically driven axle has traction. During a transition between these modes, the rate of change of torque is controlled to a predetermined level to mitigate noise, vibration, and harshness.