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PINCH DETECTION BASED ON MOTOR CURRENT INCREASE
The pinch detector (5) is suitable to detect a pinch at a closing member (1) actuated by a motor (2) equipped with a measuring circuit (3) to measure a motor current. It includes a first portion (50) that, when the motor starts closing the member, obtains a reference value of the motor current measured at the end of a blind time period having a predetermined duration from the moment the motor starts to close the member; a second portion (51) that compares current values of the measured motor current to a threshold value depending on said reference value, during a detection time period, following the blind time period and preceding a steady state time period of the motor, in order to detect a pinch at the closing member (1) based on a comparison result.
PINCH DETECTION BASED ON MOTOR CURRENT INCREASE
The pinch detector (5) is suitable to detect a pinch at a closing member (1) actuated by a motor (2) equipped with a measuring circuit (3) to measure a motor current. It includes a first portion (50) that, when the motor starts closing the member, obtains a reference value of the motor current measured at the end of a blind time period having a predetermined duration from the moment the motor starts to close the member; a second portion (51) that compares current values of the measured motor current to a threshold value depending on said reference value, during a detection time period, following the blind time period and preceding a steady state time period of the motor, in order to detect a pinch at the closing member (1) based on a comparison result.
PINCH DETECTION BASED ON MOTOR CURRENT INCREASE
EINKLEMMERKENNUNG BASIEREND AUF MOTORSTROMERHÖHUNG
DÉTECTION DE COINCEMENT SUR LA BASE D'UNE AUGMENTATION DE COURANT DE MOTEUR
ROMASZKO MATEUSZ (author) / MAJ PIOTR (author)
2022-05-25
Patent
Electronic Resource
English
Electric tail door anti-pinch method based on motor current
| European Patent Office | 2021