Process for controlling closing movement of closing mechanisms with immediate squeeze protection after activation of a mechanism

US6086177A · kind A · utility

Assignee

• Temic Telefunken Microelectronik · DE

Inventors

• Dieter Driendl · Deggenhausertal, DE
• Erwin Kessler · Bad Saulgau, DE
• Kurt Kleiner · Meßkirch, DE
• Wolfgang Schulter · Meersburg, DE

Key dates

• Filing date: Mar 13, 1998
• Grant date: Jul 11, 2000
• Expiry date: Mar 13, 2018

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02H3/006
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A process for controlling the closing movement of closing mechanisms with at least one electromotive part includes the following features to guarantee squeeze protection: the measured values of at least one motor performance characteristic which characterizes the load on the electric motor, are continuously recorded and evaluated, a continuously adapted tripping threshold defining a squeezing incident is specified for each motor performance characteristic, the measured values of each motor performance characteristic are compared with each tripping threshold and, if the tripping threshold is exceeded by at least one measured value, a defined reaction is initiated from the closing mechanisms. Immediately after the start of the closing movement, the starting behavior of the closing mechanism in the starting phase of the electric motor is defined with regard to equalization of drive play and sluggishness of the closing mechanism with reference to measured values of at least one motor performance characteristic relevant to the closing distance. This means that squeeze protection can be activated in the starting phase, relevant to the response relevant to the closing distance of at least…