Dry CVT(Continuously variable transmission) consists of a driving pulley and a driven pulley joined by rubber V-belt. Each pulley consists of a fixed flange and a movable flange. The movable flange of the driving pulley has the centrifugal roller and a ramp plate in the flange. The movable flange moves toward a fixed flange under the actuation of a centrifugal roller, as the driving pulley speed increases. The main advantages of the Dry CVT with V-belt, which has been popular in Asia, are a simple mechanism, less maintenance and low cost. The important claim which have an influence on the performance of the Dry CVT is the wear of the centrifugal roller. In this study proposed an improved design of driving pulley reducing the wear of the centrifugal roller in order to provide some design guidelines.

Safety is one of the primary concern for passengers riding a vehicle. Since introduction in the 1980's, the ABS(Anti-lock Brake System) has become so popular that now it almost became a necessity in passenger vehicle. ABS system is detects the wheel speed by controlling the amount of hydraulic when the wheel is locked or slipped. In addition, it consists of device with a complex simulation algorithm and the vehicle's hydraulic braking device And it can determine the status of the hydraulic control by detected signals working status of each solenoid.

Diesel particulate matter is one of the major harmful emissions under strict regulations. The exhaust after-treatment devices are added to the diesel engines as stricter regulations are introduced worldwide. In the present study, new system of smoke reduction of diesel engine is proposed. This new system is using suction equipment and fiber glass filter included moisture for capture smoke. For verification of new system experiments are performed at diesel engine. As a result it is founded that smoke is decreased.

Dry CVT(Continuously variable transmission) consists of a driving pulley and a driven pulley joined by rubber V-belt. Each pulley consists of a fixed flange and a movable flange. The movable flange of the driving pulley has the centrifugal roller and a ramp plate in the flange. The movable flange moves toward a fixed flange under the actuation of a centrifugal roller, as the driving pulley speed increases. The main advantages of the Dry CVT with V-belt, which has been popular in Asia, are a simple mechanism, less maintenance and low cost. The important claim which has an influence on the performance of the Dry CVT is the wear of the centrifugal roller. In this study proposed an improved design of ramp plate reducing the wear of the centrifugal roller in order to provide some design guidelines.