Velocity control with limited jolting

US5854544A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Wolfgang Speth · Bornsteiner Straße, DE
• Wilhelm Westermeyer · Wendelstein, DE

Key dates

• Filing date: Jun 27, 1997
• Grant date: Dec 29, 1998
• Expiry date: Jun 27, 2017

Classification

• Technology area (CPC G): Physics
• CPC primary: G05B2219/43065
• WIPO field: Control
• WIPO sector: Instruments

Abstract

The invention relates to a method for controlling the speed of electric drives, in particular for machine tool controllers, acceleration shocks to the gear mechanism and machine being limited. To this end, control data are read in a multi-block handling procedure and prescribed desired speeds are approached as a speed upper-limit to be maintained as far as possible, and local speed limitations are approached in the form of target speeds at defined target points within the scope of the look-ahead procedure with small acceleration changes within the limits of the maximum permissible jolt. In this context, a speed-independent acceleration limitation can be left at a constantly high maximum value.