Abstract: A method for decelerating a motor in a computer numerical controlled machine tool is provided. The method includes calculating a present rate of deceleration DP, for a motor of a motor drive system, based on a present speed SP of the motor, a reference speed SR of the motor, and a reference rate of deceleration DR of the motor. The method also includes decelerating the motor from SP according to DP. The motor drive system comprises a maximum power rating that defines a maximum power, generated by the motor while decelerating, that can be dissipated without overloading the motor drive system. DR is a rate of deceleration such that power, generated by the motor while decelerating from SR according to DR, is equal to the maximum power rating. Power, generated while decelerating the motor from SP according to DP, is equal to or less than the maximum power rating.

Abstract: A method for decelerating a motor in a computer numerical controlled machine tool is provided. The method includes calculating a present rate of deceleration DP, for a motor of a motor drive system, based on a present speed SP of the motor, a reference speed SR of the motor, and a reference rate of deceleration DR of the motor. The method also includes decelerating the motor from SP according to DP. The motor drive system comprises a maximum power rating that defines a maximum power, generated by the motor while decelerating, that can be dissipated without overloading the motor drive system. DR is a rate of deceleration such that power, generated by the motor while decelerating from SR according to DR, is equal to the maximum power rating. Power, generated while decelerating the motor from SP according to DP, is equal to or less than the maximum power rating.

Abstract: An apparatus including a plurality of interconnected portable pallets on which cargo is placed and which may be selectively moved into or removed from a truck body. The pallets constitute the bed or floor of the truck and may be independently or simultaneously moved into the body of the truck or removed therefrom so that portions of the contents may be loaded or discharged from different loading docks or the entire contents of the truck may be loaded or discharged from the same dock. The cargo may be loaded on the pallet or pallets prior to insertion into the body of the truck and such cargo may be unloaded from the pallets after the truck has departed so as to reduce delay in the operation of the truck.

Abstract: An adjustable rack assembly for pick-up trucks and the like is readily adaptable to differing cab and bed configurations. The assembly includes a plurality of vertical posts, transverse rail members, longitudinal bars, and an overcab rack adjustably and releasably secured together.