energiezurueckgewinnungssystem for motor vehicles.

摘要

An energy recovery system for a motor vehicle having a gasoline engine (1) and an exhaust energy recovery device (3,21) disposed in an exhaust system (17) of the engine. When the amount of depression of an accelerator pedal (5) is zero and the speed of travel of the motor vehicle and/or the rotational speed of the engine is higher than a predetermined value, it is decided that engine braking is applied to the motor vehicle at the time the motor vehicle it is decelerated or runs down a slope. Then fuel supplied to the engine is cut off, and the throttle valve (14) is fully opened. As a result, the engine functions as a compressor and air compressed by the engine operates the exhaust energy recovery device. The braking energy produced by the engine brake is now effectively converted into and recovered as electrical energy.