L’hybrid represents a ideal solution in different driving conditions and to increase savings and convenience, a hybrid engine can be converted into LPG. Ecomotive Solutions with Autogas Italy (‘sisters’ within the Holdim group, specialist in engine calibration) has built and distributed aftermarket conversion kit for hybrid vehicles and for conversions a LPG that methane (mainly on foreign markets). The latest retrofit system has been installed on a Toyota Rav4 Hybrid 2.5 Active 2WDlet’s see what are the advantages of converting a hybrid car into LPG.
Toyota Rav4 Hybrid LPG
For Toyota Rav4 Hybrid 2.5 Active 2WDan aftermarket kit has been created that allows the LPG operation while maintaining the excellent performance of both the Hybrid system and the heat engine.
On the latter whose particularity is in the double feeding systemcomposed of 4 injectors managed sequentially (MPI) and from 4 direct injection injectors managed simultaneously or individually according to the type of driving and the power request.
The results can be seen in the spirited guide that it does not penalize performance in terms of power by combining a further economic advantage determined by the use of natural gas.
How is the LPG system of a hybrid car made?
The Toyota propulsion system consists of the petrol engine 2.5 VVT-iE with Atkinson cycle176 hp and 221 Nm combined with an electric unit 88 kW and 202 Nm which express an overall power of 218 hp allowing a speed of 180 km / h and 0-100 km / h acceleration in 8.4 ”.
The LPG conversion kit it is made up of an electronic control unit (8-channel ECU), of a pressure reducer, of 8 gas injectors controlled in “direct” or “MPI” mode according to the strategy set by the stock engine control unit, which reads the data of the original device and manages two injection circuits and shutdown during electrical operation. The LPG tank of 58 liters has been placed under the cargo floor of the trunk.
The charging socket for refueling the tanks is positioned laterally in the rear of the vehicle outside the bodywork, in the compartment where the filler for refueling is already present. In the passenger compartment there is a switch clearly visible on the left of the dashboard that allows you to select the type of fuel, check the level of LPG in the tanks
Toyota Rav4 hybrid LPG, consumption and CO2 emissions compared
After the installation of the LPG system the Toyota Rav4 hybrid was subjected to a test session on the road, to establish the real fuel consumption and CO2 emissionsas well as the differences between LPG and full hybrid power.
The average real consumption (from test) of 7.0 l / 100 km with gas drops to 6.0 l / 100 km of LPG more 0.5 l / 100 km of petrol (the slight consumption of petrol is given by the direct injection system). These data lead to a considerable cost reduction, even more significant in the face of current refueling prices. Against a cost of the plant of approx 2,200 eurosallow you to amortize it in little more than 30,000 km.
The economic savings are also combined with the reduction of greenhouse gases and pollutants (typical of petrol), with a significant decrease of CO2 than of NOx. As for performance, the power test bench on which the car was tested returned the same values as the original petrol operation. On the road, no alterations in driving behavior were highlighted. The autonomy of the hybrid Rav4 converted to LPG is 700 km.
Toyota Rav4 photo converted to LPG
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