Efficient CVT hybrid driveline with improved drivability. (7th May 2010)

• Record Type: Journal Article
• Authors: Hohn, Bernd-Robert; Pflaum, Hermann; Lechner, Claus; Draxl, Thomas
• Is Part Of: International journal of vehicle design. Volume 53:Number 1/2(2010)
• Page Start: 70
• Page End: 88
• Publication Date: 2010-05-07
• Subjects: hybrid propulsion -- drivability -- parallel hybrid -- diesel hybrid -- hybrid driveline -- CVT -- continuously variable transmission -- multi-disc clutch -- synchronised clutch -- engine start -- powershift -- fuel economy -- energy balance -- double-layer capacitors -- vehicle design -- fuel consumption -- ride comfort; Motor vehicles -- Design and construction -- Periodicals; 629.231
• Languages: English
• ISSNs: 0143-3369

Abstract

Hybrid propulsion is a viable solution to improve the fuel economy of road vehicles. The Optimised CVT Hybrid is a parallel hybrid driveline based on a two-range Continuously Variable Transmission (CVT). Fuel savings of up to 30% compared with a conventional diesel-powered vehicle have been demonstrated, but the driveline also provides good drivability and high ride comfort. The starting process of the IC engine and shifting between the two speed ranges are performed without interruption of traction. The paper describes the driveline concept and presents experimental results on the powershift, the engine start, fuel consumption and energy balance.