engleski

Concept of Hydraulic Hybrid Vehicles

Hybrid vehicle drive has generally been accepted as an effective solution for the improvement of vehicle fuel consumption, and the requirement on the reduction of emission gasses. An alternative to a well-known hybrid electric vehicle is a hybrid hydraulic vehicle. Instead of electric motor/generator, a hydraulic unit (motor/pump) is utilized with the hydropneumatic accumulator unit for energy storage during vehicle braking. The implementation of hybrid hydraulic drives may be particularly valuable for medium/large-scale vehicles, which usually operate in stop-and-go regime (urban delivery vehicles, waste disposal vehicles, small trucks and vans, small busses and similar). The paper discuss the possible concepts of hybrid hydraulic drivetrains and give some comparison between hydraulic and electric drives and energy storage devices. The short retrospect on hydraulic drives application in road vehicles is given, as well.

Hybrid vehicle; hydrostatic transmission

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