Back to results
US 4,706,003 AGranted
Acceleration and deceleration control system
AssigneeFanuc Corporation
InventorsSeiichiro Nakashima, Kenichi Toyoda, Shinsuke Sakakibara
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeFanuc Corporation
InventorsSeiichiro Nakashima, Kenichi Toyoda, Shinsuke Sakakibara
Estimating the term…
An acceleration and deceleration system smoothly controls acceleration and deceleration of an electric motor for driving a movable member of a machine tool or a robot. The acceleration and deceleration system has a linear acceleration and deceleration circuit (3) for receiving interpolation data issued from a pulse distributor (5) and effecting a linear acceleration and deceleration computation on the received data, and an exponential acceleration and deceleration circuit (4) for receiving an output signal from the linear acceleration and deceleration circuit (3) and effecting an exponential acceleration and deceleration computation on the output signal, the circuits (3), (4) being connected in series with each other. The exponential acceleration and deceleration circuit (4) reduces abrupt changes of the controlled speed which are a drawback of the linear acceleration and deceleration circuit (3) prevent shocks from being produced when an axis starts moving and is decelerated thereby providing smooth and accurate acceleration and deceleration control.
An acceleration and deceleration system for progressively increasing a feed speed up to a command speed and for progressively reducing the feed speed, comprising:
An acceleration/deceleration system for at least one of increasing a feed speed up to a command speed and reducing the feed speed in dependence upon feed speed and displacement signals, comprising:
Dependencies are inferred from the claim text.