Electric vehicle with adaptive cruise control system

B - Operations – Transporting – 60 – K

Patent

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Details

B60K 31/00 (2006.01) H02P 5/00 (2006.01) H02P 31/00 (2006.01)

Patent

CA 2519130

A novel system for adaptively controlling an electric vehicle to maintain desired speed under variable driving conditions. The system includes a control circuit for producing a control signal to control an electric motor of the vehicle. The control signal is formed based on a control current required to achieve the desired speed. The control strategy selection circuit is configured in the system to determine a motor control scheme that provides an appropriate waveform profile of the control current. Sinusoidal waveforms are used for high efficiency and rectangular waveforms ar used for high torque.

L'invention concerne un système destiné à la commande adaptative d'un véhicule électrique et permettant de maintenir une vitesse souhaitée dans des conditions de conduite variables. Ce système comprend un circuit de commande destiné à produire un signal de commande pour la commande d'un moteur électrique du véhicule. Le signal de commande est formé sur la base d'un courant de commande requis pour obtenir la vitesse souhaitée. Le circuit de sélection de stratégie de commande est conçu, dans le système, pour déterminer un schéma de commande de moteur fournissant un profil de forme d'onde approprié du courant de commande. Des formes d'ondes sinusoïdales sont utilisées pour l'obtention d'une efficacité élevée et des formes d'ondes rectangulaires sont utilisées pour l'obtention d'un couple élevé.

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