Bendix Commercial Vehicle Systems LLC

Bendix Commerical Vehicle Systems LLC

Fernando Venegas Diaz

David D Colavincenzo

Jeffrey Geither

Dennis R Young

A system and method for integrated electrification of vehicle accessories conventionally driven by an internal combustion engine includes an electric motor coupled to a common accessory drive that drive a plurality of accessories, such as a power steering pump, an air conditioning compressor, an air compressor, a thermodynamic heater and/or a coolant pump. The integrated electrified accessory unit preferably has the electric motor, accessory drive and accessories arranged in a common housing which is configured to be mounted to a chassis frame rail of the vehicle, the common housing including wall penetrations which facilitate rapid connection of the accessories to external lines of the vehicle.

Front end motor-generator system and hybrid electric vehicle operating method

A perimeter electric machine cooling arrangement includes a cooling conduit arranged to remove heat from an integrated housing containing an electric motor and a power inverter. The electrical connections between the electric motor and the power inverter are provided by flexible, pre-formed busbars that are arranged in pass over liquid cooling connections in the region between the electric motor and the power inverter. The integrated housing includes an intermediate cover over the electric motor and the power inverter portions of the housing, with a window through which the busbars can pass to reach the electric motor. The housing is further provided with an outer housing cover and seals that isolate the electric motor and the power inverter from the exterior environment and one another.

Perimeter liquid-cooled electric machine and integrated power inverter

A system and method are provided for hybrid electric internal combustion engine applications in which a motor-generator, a narrow switchable coupling and a torque transfer unit therebetween are arranged and positioned in the constrained environment at the front of an engine in applications such as commercial vehicles, off-road vehicles and stationary engine installations. The motor-generator is preferably positioned laterally offset from the switchable coupling, which is co-axially-arranged with the front end of the engine crankshaft. The switchable coupling is an integrated unit in which a crankshaft vibration damper, an engine accessory drive pulley and a disengageable clutch overlap such that the axial depth of the clutch-pulley-damper unit is nearly the same as a conventional belt drive pulley and engine damper. The front end motor-generator system includes an electrical energy store that receives electrical energy generated by the motor-generator when the coupling is engaged. When the coupling is disengaged, the motor-generator may drive the pulley portion of the clutch-pulley-damper to drive the engine accessories using energy returned from the energy store, independent of the engine crankshaft.

Front end motor-generator system and modular generator drive apparatus

A system and method are provided for hybrid electric internal combustion engine applications in which a motor-generator, a switchable coupling and a torque transfer unit are arranged co-axially-arranged with the front end of the engine crankshaft in the constrained environment in front of an engine in applications such as commercial vehicles, off-road vehicles and stationary engine installations. The motor-generator is preferably laterally offset from the switchable coupling. The switchable coupling is an integrated unit in which a crankshaft vibration damper, an engine accessory drive pulley and a clutch overlap with an axial depth nearly the same as a conventional belt drive pulley and engine damper. The system includes an electrical energy store that receives energy generated by the motor-generator when the coupling is engaged. When the coupling is disengaged, the motor-generator may drive the pulley portion of the clutch-pulley-damper to drive engine accessories using energy returned from the energy store.

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Elyria, OH, United States of America

Fernando Venegas Diaz