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1. WO1991000441 - ELECTROHYDRAULIC DEVICE FOR CONTROLLING THE ENGAGEMENT OF THE CLUTCH IN MOTOR VEHICLES AND THE LIKE

Publication Number WO/1991/000441
Publication Date 10.01.1991
International Application No. PCT/EP1990/001057
International Filing Date 02.07.1990
Chapter 2 Demand Filed 01.02.1991
IPC
F16D 48/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
48External control of clutches
06Control by electric or electronic means, e.g. of fluid pressure
F16H 61/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
61Control functions within change-speed- or reversing-gearings for conveying rotary motion
02characterised by the signals used
CPC
F16D 2048/0281
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
48External control of clutches
02Control by fluid pressure
0257Hydraulic circuit layouts, i.e. details of hydraulic circuit elements or the arrangement thereof
0281Complex circuits with more than two valves in series or special arrangements thereof not provided for in previous groups
F16D 2500/1026
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
2500External control of clutches by electric or electronic means
10System to be controlled
102Actuator
1026Hydraulic
F16D 2500/3024
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
2500External control of clutches by electric or electronic means
30Signal inputs
302from the actuator
3024Pressure
F16D 2500/3067
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
2500External control of clutches by electric or electronic means
30Signal inputs
306from the engine
3067Speed of the engine
F16D 2500/3115
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
2500External control of clutches by electric or electronic means
30Signal inputs
31from the vehicle
3114Vehicle wheels
3115Vehicle wheel speed
F16D 2500/31493
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
2500External control of clutches by electric or electronic means
30Signal inputs
314from the user
31493Switches on the dashboard
Applicants
  • FADIEL ITALIANA S.R.L. [IT/IT]; Calle del Sale, 33 I-30174 Venezia Mestre, IT (AllExceptUS)
  • DOMENEGHINI, Fabio [IT/IT]; IT (UsOnly)
Inventors
  • DOMENEGHINI, Fabio; IT
Agents
  • PIOVESANA, Paolo; Corso del Popolo, 70 I-30172 Venezia Mestre, IT
Priority Data
84137 A/8904.07.1989IT
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ELECTROHYDRAULIC DEVICE FOR CONTROLLING THE ENGAGEMENT OF THE CLUTCH IN MOTOR VEHICLES AND THE LIKE
(FR) DISPOSITIF ELECTROHYDRAULIQUE POUR COMMANDER L'ENGAGEMENT DE L'EMBRAYAGE DANS DES VEHICULES A MOTEUR ET DE CE GENRE
Abstract
(EN)
Electrohydraulic device for controlling clutch engagement in motor vehicles and the like, characterised by comprising: a hydraulic actuator (36, 41) for controlling clutch engagement and release, a hydraulic circuit for controlling said actuator (36, 41) via an interceptor means (14, 114), an electronic control unit (15) to control said interceptor means (14, 114) to feed the hydraulic actuator (36, 41) to thus cause clutch release, and to enable said actuator to discharge, at least one solenoid valve (54, 54') connected into the discharge circuit (55) of the hydraulic actuator (36, 41) and caused to open by the control unit (15) by a sequence of pulses related to the rotational speed of the vehicle engine, the command to the interceptor means (14, 114) for feeding the hydraulic actuator (36, 41) being provided by the control unit (15) automatically when predetermined engine operating conditions exist, and/or by the action of the driver.
(FR)
Un dispositif électrohydraulique pour commander l'engagement de l'embrayage dans des véhicules à moteur et de ce genre est caractérisé en ce qu'il comprend: un actuateur hydraulique (36, 41) pour commander l'embrayage et le débrayage, un circuit hydraulique pour commander ledit actuateur (36, 41) via un moyen d'interception (14, 114), une unité de commande électronique (15) pour commander ledit moyen d'interception (14, 114) afin d'alimenter l'actuateur hydraulique (36, 41) pour ainsi provoquer le débrayage, et permettre le refoulement par ledit actuateur, au moins une électrovanne (54, 54') raccordée dans le circuit de refoulement (55) de l'actuateur hydraulique (36, 41) et astreinte à s'ouvrir par l'unité de commande (15) à l'aide d'une séquence d'impulsions liées à la vitesse de rotation du moteur du véhicule, l'instruction envoyée au moyen d'interception (14, 114) pour alimenter l'actuateur hydraulique (36, 41) étant fournie par l'unité de commande (15) automatiquement lorsqu'existent des conditions prédéterminées de fonctionnement du moteur, et/ou par l'action du conducteur.
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