Chrysler Corporation

Daimlerchrysler Corporation

Chrysler Group LLC

Edward V Schrand

Shawn E Bronner

Charles R Pajtas

Anthony H Pistagnesi

Jeffrey Japinga

Joseph P Elser

Kurt B Prescher

An improved hydraulically locking limited slip differential assembly for a drivetrain of a motor vehicle having a fluid pump external to a differential carrier and arranged for preventing slip between the wheels by selectively pressurizing a differential clutch internal to the carrier, and a controller arranged for selectively activating the fluid pump.

Hydraulically locking limited slip differential

Differential assembly and a method of operating the same. The assembly includes a differential case and a pinion housing including a first pinion gear and a second pinion gear positioned substantially therein. A first side gear and a second side gear are operably coupled to the first pinion gear and the second pinion gear. A sliding collar selectively engages at least one of the differential case, the pinion housing, and the first and second side gears. The sliding collar provides at least three engagement modes. The method includes providing a differential case and a pinion housing including a first pinion gear and a second pinion gear positioned substantially therein. A first side gear and a second side gear are provided. At least one of the differential case, the pinion housing, and the first and second side gears are selectively engaged in one of at least three engagement modes.

Three stages differential assembly and method of operating the same

A clutch pack actuation system for compressing the annular clutch pack of a limited slip differential includes a pump which can provide a supply of pressurized fluid, an annular member provided between the pump and the annular clutch pack, and an annular piston which is slidable within the annular member. Together with the annular member, the annular piston defines a clutch pressure chamber adapted to receive the supply of pressurized fluid. A fluid return line, by which the pressurized fluid is discharged from the clutch pressure chamber, is provided, and a valve, through which the pressurized fluid is returned to a fluid reservoir, is disposed in the fluid return line. The valve includes an element which is electromagnetically actuated so as to produce a desired pressure in the clutch pressure chamber.

Pressure regulation of speed sensing electronic limited slip differential for axles

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Farmington Hills, MI, United States of America

Edward V Schrand