Ernest J Fasick

US Patent:

45924422, Jun 3, 1986

Filed:

Nov 29, 1984

Appl. No.:

6/676050

Inventors:

B. Lee Wilson - Fort Wayne IN
Ernest J. Fasick - Fort Wayne IN
James H. King - Fort Wayne IN
Noel E. Leitzman - Fort Wayne IN

Assignee:

International Harvester Company - Chicago IL

International Classification:

B60K 1734

US Classification:

180247

Abstract:

A control system for a two-wheel/four-wheel drive vehicle having a rear axle which can be operated in a high speed mode or a low speed mode and a front axle which can be drivingly coupled to the engine power train to place or maintain the rear axle in the low speed mode when the front axle is sensed to be engaged. The control system includes several switches. A first switch is provided for sensing when the front axle is drivingly coupled to the power train. A second switch is associated with a speed selection control system of the vehicle for causing the power train to be driven in a low speed mode or a high speed mode. A third switch is coupled to the first switch and is responsive to sensing of the front axle being drivingly coupled to the power train for preventing the second switch from causing the rear axle to be driven in the high speed mode and for forcing the rear axle to be driven in the low speed mode so long as the front axle is drivingly coupled to the power train. Preferably the system also includes a fourth switch for sensing when the mode of operation of the rear axle is being changed from a low speed mode to a high speed mode and a mechanism responsive to the sensing by the fourth switch for preventing or locking out the front axle from being drivingly coupled to the power train.

US Patent:

46624899, May 5, 1987

Filed:

Dec 21, 1984

Appl. No.:

6/684640

Inventors:

Curtis J. Honekamp - Fort Wayne IN
Ernest J. Fasick - Fort Wayne IN

Assignee:

Navistar International Corporation - Chicago IL

International Classification:

F16H 1445

US Classification:

192 4A

Abstract:

A novel parking brake for motorized vehicles is disclosed. The parking brake is designed to be an integral feature of an essentially conventional drive axle housing. The novel parking brake comprises a sliding clutch shaft attached to a clutch element that, when actuated, engages a complimentary clutch element attached to the drive axle ring gear. Additional gear means prevent the engaged clutch shaft from rotating, and so, prevent the drive axle ring gear from rotating, in effect, securing the vehicle.