Waste heat recovery hybrid power drive

Patent · Tue Dec 05 00:00:00 EST 2023

OSTI ID:2293937

Narula, Manik; Ernst, Timothy C.; Ruth, Michael J.; Dickson, Jonathan A.; Kolhouse, J. Steven; Bagayatkar, Nimish

A vehicle system includes an engine, a transmission, a differential, and a waste heat recovery (WHR) drive that converts thermal energy into mechanical and electrical energy. The WHR drive can include a WHR power unit structured to convert thermal energy into rotation of a WHR drive shaft. A motor/generator having a motor/generator shaft can selectively operate as a motor or a generator. A mechanical linkage is structured to selectively link an output shaft to one of the WHR drive shaft and the motor/generator drive shaft independently of the other of the WHR drive shaft and the motor/generator drive shaft. The output shaft is selectively coupled to one of the engine, the transmission, or the differential. The vehicle system may also include a traction motor to provide drive to the vehicle. The output shaft can be selectively coupled to the traction motor or the engine.

• Research Organization: Cummins Inc., Columbus, IN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: EE0007761
• Assignee: Cummins Inc. (Columbus, IN)
• Patent Number(s): 11,833,902
• Application Number: 16/976,213
• OSTI ID: 2293937
• Resource Relation: Patent File Date: 02/27/2019
• Country of Publication: United States
• Language: English