Considering the EU's commitment to achieve climate neutrality by 2050, new tools and investments are needed to achieve this goal. Starting from this goal, the decision was made to develop a hybrid utility vehicle with a multifunctional role, which can also be used in closed spaces such as tunnels or underground parking lots or outside, contributing to the goal of zero carbon emsions. This machine will be the basis for the further development of an electric plug-in machine with increased autonomy. The machine will use a hybrid drive with a diesel engine and an electric motor coupled to a hydrostatic transmission in a closed circuit. The machine can work in heavy environments with a lot of dust, moisture or rugged terrain where the electric motors mounted in the wheel of the vehicle do not give very good results. The traction is done on all four wheels of the machine using wheel hydraulic motors with radial pistons. This type of engine ensures a high torque at low speeds, necessary for the types of work performed. The article presents the structure of this machine, the hydraulic scheme of the actuation, the configuration of the energy group powered by a LiFePO4 battery, through an inverter and the control system of the machine.
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