engleski

Numerical simulation of a parallel hydraulic hybrid system for a delivery van

Main aims of modern delivery vans development are the decrease of the fuel consumption and environmental pollution, which is achieved with optimisation of the internal combustion engine. Apart from internal combustion engine optimisation, more attention has been devoted to the design of hybrid vehicle drivetrain systems. The hybrid vehicle is a vehicle that can use two or more systems to create, store and reuse energy. It is usually realised with a regenerative braking principle, which stores and reuses the energy that is lost during the braking, thus increasing the overall efficiency of the vehicle. Depending on the design of storing and reusing energy, the hybrids are divided into electrical, hydraulic and mechanical. In this paper an analysis of the hydraulic hybrid system with parallel architecture is carried out to determine fuel saving in comparison with delivery van with the classical drivetrain. Based on the different delivery van driving regimes a calculation of the van hydraulic hybrid system is conducted and standard hydraulic components are chosen. After that a numerical model of the parallel hydraulic hybrid system is developed using the Matlab/Simulink software. Using a developed numerical model, simulations for breaking and starting modes of the vehicle are performed.

parallel hydraulic hybrid vehicle, numerical simulation, delivery van

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