In urban driving, significant amount of fuel energy is lost in engine idling, braking and conventional fluid-coupled torque converter. A mild hybrid drive train with a small motor with low rated voltage (such as 42 V) can significantly improve the urban driving fuel economy by eliminating the engine idling operation and the inefficient torque converter, and utilizing regenerative braking. Simulation shows that, with proper design and control, the fuel consumption reduction in urban driving for a 1500 kg passenger car would reach about 30 %. The mild hybrid drive train proposed in this paper is not much different from conventional drive train. Therefore, it is considered to be a good interim product between current pure gasoline fueled drive train and future full hybrid and fuel cell powered drive trains.
A mild hybrid drive train for 42 V automotive power system - design, control and simulation
Ein schonender Hybridantriebsstrang für ein 42V-Kraftfahrzeugbordnetz - Entwurf, Netzregelung, Netzsimulation
2002
7 Seiten, 21 Bilder, 2 Tabellen, 11 Quellen
Conference paper
English
A mild hybrid drive train for 42 V automotive power system - design, control and simulation
Automotive engineering | 2002
|A Mild Hybrid Drive Train for 42 V Automotive Power System-Design, Control and Simulation
SAE Technical Papers | 2002
|British Library Conference Proceedings | 2002
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