Experimental Validation of Radiator Effectiveness

It is difficult to imagine modern vehicles without a cooling system. The cooling system is based on the radiator. Scientists have done various researches to improve radiator efficiency and these are still ongoing. This paper shows both theoretical and experimental methods for determining the effectiveness of radiator

TECHNOLOGY OF NON-CONTACT MEASUREMENT OF AUTOMOBILE GAP FOR SEMI-AUTOMATIC USE

he paper represents infrared laser and digital camera based equipment for measurement of gap and fl ushness on the automobile. The system is based on smartphone that is used as camera and database, while the red laser is targeted as measurement tool. The method used to measure the gap and fl ushness is based on laser triangulation. The camera on the smartphone captures the laser line projected on the body of the automobile and serves as database of captured photos. The measurement algorithm is done on remote computer based algorithm that serves as computation station for gap and fl ushness measurement. Experiments are done on real car body in laboratory conditions. The process is done as effective replacement of operator’s gap and fl ushness measurement in the production process. The results enable to eliminate the operators’ error and help to implement semi-automatic measurement system in theproduction plan

Sensitivity Analysis of Electric Energy Consumption in Battery Electric Vehicles with Different Electric Motors

In the last decade, a number of research works in electrified vehicles have been devoted to the analysis of the electric consumption of battery electric vehicles and the evaluation of the main influencing factors. The literature analysis reveals that the electric motor size, efficiency, and driving condition substantially affect the electric energy stored in the vehicle battery. This paper studies the degree of sensitivity of energy consumption to electric motor size and to its efficiency map characteristics. In order to accomplish this task, three electric motors whose parameters are re-scaled to fit the maximum power torque and speed with different efficiency maps are simulated by installing them on two commercially available battery electric vehicles. This allows for isolating the influence of the efficiency map on electricity consumption. The original characteristics of the motors are then used to evaluate the influence on the electricity consumption of both the size and the efficiency characteristics. The results of the simulation revealed that the influences of the efficiency map and the electric motor size can be around 8–10% and 2–11%, respectively. When both factors are taken into account, the overall difference in electricity consumption can be around 10–21%