Design modifications of the electrical system to use intermittent engine operation

Fuel consumption of vehicles must be minimized to reduce CO₂ emissions. Intermittent engine operation promises a high potential of improvement. Today´s starter motors and alternators will not be able to fulfil the requirements for the high number of starting cycles and of the increased electric power demand. It is mandatory to improve the efficiency of all permanently operating accessories to limit the demand for electric power. It can be expected, that induction machines can serve as starter-alternator and will reach efficiencies of more than 80%