Abstract
Using a hybrid driveline for cars or trucks is a possible way to reduce fuel consumption and pollution caused by road traffic.
During a research project at the Technical University Munich the performance of a specific hybrid driveline, the AUTARK HYBRID, is investigated. In comparison with conventional cars its concept aims especially to reduce fuel consumption and emission of exhaust gas without loosing range and cruising speed. In addition zero emission driving mode at city centers is implemented.
After evaluation and detailed design of the parallel hybrid driveline concept the components of the driveline were designed, manufactured and separately pretested. After completion of separately optimizing of the components the driveline as a system of several delicated subsystems -electric motor, hydraulic supply, electric power supply, transmission, control system, ic-engine, battery- has to be assembled and pretested. Therefore a first assembly of the complete driveline for basic function testing and parameter optimization is made at a test rig. In parallel a second assembly of the driveline is installed at the vehicle.
By using this strategy of several levels of pretesting such a complex system of a hybrid car driveline can be investigated and optimized very effectively.
Methode and test results will presented at the paper.