Search

Bradley Lee Mccafferty

from Zionsville, IN
Age ~66
Get Report
Also known as:
Bradley L Mccafferty
Phone and address:
544 Nuthatch Dr, Zionsville, IN 46077
(317) 873-1026
Related to:
Dorothy R Mcginnis, 95Steven T Zang, 58Steven M Mccafferty, 58C L MccaffertyDavid L Mccafferty, 87Charles D Mccafferty, 95Carolyn K Mccafferty, 83Louise A Mccafferty, 93
Connected to:
Andy Mccafferty, 44Ashley M Mccafferty, 33Bobbie G Mccaffery, 74Camille Mccafferty, 59Caroline A Mccaffery, 92Dale Mccafferty, 42George Mccaffery, 87Hollie D Mccafferty, 69Jacob Mccafferty, 30Jacqueline Mccafferty, 66

Bradley Mccafferty Phones & Addresses

  • 544 Nuthatch Dr, Zionsville, IN 46077 (317) 873-1026
  • Noblesville, IN
  • Marion, IN
  • Aurora, IN
  • Indianapolis, IN

Publications

Us Patents

Hydrodynamic Retarder Control Apparatus

View page
US Patent:
7527338, May 5, 2009
Filed:
Sep 2, 2005
Appl. No.:
11/218981
Inventors:
Charles F. Long - Pittsboro IN, US
Mark A. Rader - Avon IN, US
Bradley L. McCafferty - Zionsville IN, US
Assignee:
General Motors Corporation - Detroit MI
International Classification:
B60T 13/74
US Classification:
303 3, 303 841, 188290
Abstract:
A hydrodynamic retarder control apparatus includes two valve spools, one, a retarder control valve, functions as a relay valve to control the on/off operation of a hydrodynamic retarder and the other, a regulator valve, functions to control the regulation of pressure at the hydrodynamic retarder. During abnormal periods of operation of the regulator valve, the retarder control valve will also function as a pressure control valve thereby limiting the maximum pressure at the hydrodynamic retarder.

System For Controlling The Operation Of A Vehicular Transmission

View page
US Patent:
56403224, Jun 17, 1997
Filed:
Jan 11, 1996
Appl. No.:
8/596879
Inventors:
Bradley Lee McCafferty - Zionsville IN
Martin Robert Dadel - Plainfield IN
Assignee:
General Motors Corporation - Detroit MI
International Classification:
G06G 770
US Classification:
3644241
Abstract:
A system to control the operation of a vehicular transmission embodying the concepts of the present invention utilizes a controller, at least one pulse width modulation solenoid valve and a torque transfer device operatively controlled by each of the solenoid valves so as to regulate a transmission system. The controller operatively imposes not only a varying modulation frequency on each of the solenoid valves, but also a varying modulation duty cycle on each of the solenoid valves. The controller also operatively varies the modulation rate of said frequency and said duty cycle of the fluid pressure operating the plurality of torque transfer devices, thus controlling the operation of each solenoid valve such that it does not impose a torque spike on the operation of the transmission as each solenoid valve applies fluid pressure to the appropriate torque transfer device. Accordingly, the controller provides smooth and quiet operation of the transmission.

Electronically Controlled Hydrodynamic Retarder With Adaptive Duty Cycles Based On Decelarations

View page
US Patent:
53517954, Oct 4, 1994
Filed:
Aug 31, 1992
Appl. No.:
7/938103
Inventors:
Martin R. Dadel - Plainfield IN
Bradley L. McCafferty - Zionsville IN
Phillip F. McCauley - Zionsville IN
Assignee:
General Motors Corporation - Detroit MI
International Classification:
B60K 3100
B60T 826
US Classification:
477 96
Abstract:
An electronically controlled hydrodynamic retarder interconnects with the output shaft of a vehicle transmission to selectively apply a braking torque thereto. The retarder includes a solenoid valve, the operating duty cycle of which controls the retarder capacity and resultant braking torque. A control unit, interconnecting the transmission and the retarder, regulates the duty cycle of the solenoid valve to regulate the retarder operation as a function of excessive deceleration or overheating, while also regulating such operation during downshift to assure efficient, effective, and comfortable operation of the transmission/retarder. The retarder is adaptive to accommodate variations resulting from age, wear, and the like.
Control profile
Bradley Lee Mccafferty from Zionsville, IN, age ~66 Get Report