Search Results

Nowadays the task to diminish energy consumption and air pollution caused by road traffic occupies a key issue. One of several approaches is the hybrid driveline technology. At the Technical University Munich through a research project the “Optimized CVT-Hybrid-Powertrain” was designed and manufactured and is under investigation. This research project is run in close cooperation between university and industry (EPCOS AG, GM Powertrain Europe, ZF Friedrichshafen AG and ZF SACHS AG). The project is focused on reduction of fuel consumption at low additional cost for hybridization. The “Optimised CVT-Hybrid-Powertrain” is a full hybrid car driveline using Diesel-engine, electric motor with double layer capacitors for electric energy storage and a CVT-type transmission. Vehicle pull away is typically done by electric driving; the ic-engine is started by a fast ratio change of the CVT-transmission without additional starter.

The Autark Hybrid is a parallel hybrid car concept with the aims of saving fuel, reducing exhaust gas, offering a zero emission driving mode and being autarkic from public power supply system. The drive line consists of a combustion engine, an electric engine and an i2-gearbox, a variable transmission with wide spreading. A controller system operates drive line according to an operation strategy and the drivers wish. For testing and investigation drive line is installed on a test rig. - After an introduction in the basics of the concept, test rig setup is described and measurement plots are shown.