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A dual mode power train of a hybrid electric vehicle and an operating method thereof are provided to operate the power train in relatively good efficiency according to the change of the gear ratio as… (More)
Six thousands of vehicles are operated on Korean urban transit system. 95% of them have regeneration system. Especially, the VVVF-Inverter vehicle has a merit of the highest regeneration rate.… (More)
The objective of the paper is to demonstrate the noise reduction characteristics of an air-gap resonator, which is composed of an air gap and a partition sheet. By means of installing the air-gap… (More)
According to the present invention, in the power train of the hybrid vehicle, also so as to ensure the efficiency of the power train larger than a good gear ratio area and, at the same time, it can… (More)
In automotive industries, one of the major issues is the shifting shock, which is brought out when two clutches are engaged in an automatic transmission. The engagement and disengagement of two… (More)