Chrysler Corporation

Steven A Barnhart

Richard G Reed, Jr

Donald L Carriere

George A Konstantakopoulos

Jeffrey P Cherry

A control method for coupling a first engine to a second engine in a vehicle includes determining a current position of a throttle body that regulates power output from the first and second engines. Determining a set speed for the first and second engines that corresponds to a desired power output from the first and second engines. Determining a compensation position for the throttle body and moving the throttle body to the compensation position. Actuating a clutch to a closed position such that the first engine is coupled to the second engine. Determining whether the first engine and the second engine are in phase. Actuating the clutch to slip if the first engine is not in phase with the second engine and actuating the clutch to the closed position when the first engine and the second engine are in phase.

Control strategy for a dual crankshaft engine coupling arrangement

A parking sprag is provided for engaging a parking gear of an automotive transmission. The parking sprag includes a sprag mechanism pivotally mounted to a support structure. A linkage assembly operatively engages the sprag mechanism for pivoting the sprag mechanism into engagement with the parking gear. A linkage cam engaged with the linkage assembly and is driven by an electric motor. The electric motor drives the linkage cam which drives the linkage assembly in order to engage the sprag mechanism with the parking gear.

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Rochester Hills, MI, United States of America

Steven A Barnhart