Title (en)

Method and system for controlling the reversing of the direction of rotation of a hydraulic motor

Title (de)

Verfahren und Einrichtung zum Steueren der Drehrichtungsumkehr eines hydraulischen Motors

Title (fr)

Procédé de pilotage de l'inversion du sens de rotation d'un moteur hydraulique et système de mise en oeuvre de ce procédé

Publication

EP 1696112 A1 20060830 (FR)

Application

EP 06290305 A 20060223

Priority

FR 0501946 A 20050225

Abstract (en)

The method involves associating a rotation speed sensor (12) to a hydraulic motor (1) and providing a control loop for operating the motor at a minimum drag airspeed. The motor is supplied with a pressurized liquid by a hydraulic control system. A rotation speed of the motor is reduced at the airspeed during a preset period and then from the airspeed to a maximum cleaning speed, in a reverse rotation direction of the motor. An independent claim is included for a system implementing a method for controlling a hydraulic motor reverse rotation direction.

IPC 8 full level

B60K 11/02 (2006.01); F01P 5/04 (2006.01); F01P 7/04 (2006.01)

CPC (source: EP)

F01P 5/043 (2013.01); F01P 7/044 (2013.01); F01P 2023/08 (2013.01)

Citation (search report)

• [X] US 6076488 A 20000620 - YAMAGISHI YOSHINORI [JP]
• [X] US 6349882 B1 20020226 - KITA IKUO [JP], et al
• [X] US 6481388 B1 20021119 - YAMAMOTO YUUICHI [JP]
• [X] US 6750623 B1 20040615 - MCCAULEY THOMAS A [US], et al
• [A] US 2788775 A 19570416 - STEINER PHILLIP F
• [A] US 4160487 A 19790710 - KUNZE DIETER, et al
• [A] US 5224446 A 19930706 - OKITA REIJI [JP], et al
• [A] PATENT ABSTRACTS OF JAPAN vol. 1996, no. 05 31 May 1996 (1996-05-31)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 1696112 A1 20060830; EP 1696112 B1 20160413; FR 2882536 A1 20060901; FR 2882536 B1 20070824

DOCDB simple family (application)

EP 06290305 A 20060223; FR 0501946 A 20050225