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Constant Power Electronic Gear for Electrical Vehicle

Pestana, H. A. P. ; Ferreira, C. ; Ribeiro, H.R. ; Matos, P.

Constant Power Electronic Gear for Electrical Vehicle, Proc International Conf. on Power Engineering, Energy and Electrical Drives - POWERENG, Lisbon, Portugal, Vol. -, pp. 396 - 401, March, 2009.

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Abstract
This paper presents a power drive circuit for electric vehicles with a buck-boost power converter. The buck-boost converter with a dedicated current control allows achieving an electronic gear for DC motors. With this topology is possible to allow a torque-speed profile that resembles the obtained by a geared manual one but in a continuous manner, meaning that the power value is limited at high speeds but the torque is raised during starting and climbing.