ABSTRACT
Parallel work is being done both on limiting the amount of burned petroleum products and on mitigation of emission by upgrading conventional engines. It is estimated that by 2030 road transport will reduce emissions of CO2 by 12.5 GT, mainly as a result of upgrading efficiency by 52%, introducing electric vehicles (17%), the use of biofuels (17%) and the introduction of hydrogen as a fuel (14%) (IEA 2008). The reduction of vehicles negative impact on the environment is associated with the decrease of fuel consumption by vehicles. One of the ways of reducing fuel consumption and exhaust fumes emission is the use of hybrid drive and electric drive systems (Bartłomiejczyk & Połom 2013, Hamacek & Bartłomiejczyk 2014, Feng-chun, Liu & Zhen 2014, Wołek & Wyszomirski 2013).
