Patent ID: 6448730
Filing Date: 2002-09-10
Classification: B60L,Y02T

Abstract:
A method for controlling current limit of a motor of an electric-powered vehicle, comprising the steps of:(a) setting the current limit of the motor to a smaller first value corresponding to about 45% to 55% of a rated current value of the motor during start-up operation of the vehicle; (b) in response to operation of a twist-grip throttle of the vehicle to commence accelerating operation of the vehicle subsequent to the start-up operation, increasing the current limit of the motor from the smaller first value to a larger second value larger than the smaller first value in accordance with angular rotation of the twist-grip throttle from an initial position; and (c) when the current limit reaches the larger second value, maintaining the current limit of the motor at the larger second value in case of further operation of the twist-grip throttle from the initial position.