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2659370 
Book/Book Chapter 
INVESTIGATION OF DYNAMICAL AND EXPLOITATION PARAMETERS OF SLOW MOVING ELECTRIC CAR ON CHASSIS DYNAMOMETER 
Pirs, V; Jesko, Z 
2012 
Engineering for Rural Development 
393-399 
WOS:000329712900069 
Because of extinction of fossil fuels and increasing pollution of atmosphere scientists and authorities are more and more searching for how to decrease the dependency on fossil fuels. As known, fossil fuels make hazardous emissions. One of the ways how to decrease the impact on environment is to make more efficient internal combustion engines (less consumption; less emission). Another way is to establish alternative fuels (biofuels) or alternative drive (electric drive) of vehicles. A number of regulations have been worked out to increase the specific weight of alternative fuels of total consumption in transport. Electric energy in commercial vehicles is used already for a long time (trolleys, trams, trains) but exploitation of electric vehicles as transport of physical persons is coming more and more topical during the recent years. Electric motor vehicles are more expensive than conventional internal combustion engine vehicles due to the costs of batteries. Expenses of batteries are decreasing and recharging infrastructure is progressing. If amortization costs are ignored then direct driving costs with electric motor vehicle are frequently lower in comparison with internal combustion engine vehicles. The article deals with the low-speed electric motor vehicle Melex 963DS dynamical and experimental parameter studies on the power stand Mustang MD1750. The dynamical parameters - power, torque, acceleration time and acceleration distance up to 30 km.h(-1) were determined. The exploitation parameters to determine are autonomy, driving time, charging time and charging energy. All parameters, except spin-up curves, were determined with different load regimes and with fully charged batteries. The maximum obtained electric motor power is 5.02 kW at 1858 rpm and maximum achieved torque is 34.54 N.m at 1132 rpm. Acceleration time and distance changes with a load and is from 102 to 155 seconds and from 666 to 1146 meters without load and with 150 % load. The results show that load has no considerable impact on the exploitation parameters of the vehicle driving it on power stand and the difference in autonomy driving the vehicle without load in comparison with overload of 150 % is only 2.623 km, difference in driving time is 00: 01: 20 h, difference in charging time 00: 00: 40 h and difference in charging energy 0.03 kWh. 
slow-moving electric motor vehicle; acceleration time; acceleration distance; charging energy; charging time; driving time; power curve; torque curve; chassis dynamometer