EP 2322777 B1 20190515 - Method and apparatus for controlling the rotation speed of a fan of the engine cooling circuit in a vehicle
Title (en)
Method and apparatus for controlling the rotation speed of a fan of the engine cooling circuit in a vehicle
Title (de)
Verfahren und Vorrichtung zur Steuerung der Drehgeschwindigkeit des Lüfters eines Motorkühlkreislaufes in einem Fahrzeug
Title (fr)
Procédé et appareil de contrôle de la vitesse de rotation d'un ventilateur du circuit de refroidissement de moteur dans un véhicule
Publication
Application
Priority
EP 09425469 A 20091117
Abstract (en)
[origin: EP2322777A1] Method for controlling the rotation speed of a fan of an engine cooling circuit in a vehicle, comprising the steps of: evaluating the contributions to the fan rotating speed deriving from the presence of the retarder and of the engine unit, according to the difference between a reference temperature value (2) of the fluid of the engine cooling system and a current measured temperature (3) of the fluid in the engine cooling system, and according to a percentage value (4) of the braking torque required by the retarder or according to a measured value (5) of current speed of the fan; obtainment of the fan rotation speed by adding up the contributions given by the retarder and the engine system.
IPC 8 full level
F01P 7/04 (2006.01); F16D 48/06 (2006.01)
CPC (source: EP)
F01P 7/046 (2013.01); F01P 7/048 (2013.01); F01P 2060/06 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
EP 2322777 A1 20110518; EP 2322777 B1 20190515; AU 2010236069 A1 20110602; AU 2010236069 B2 20140522; BR PI1013443 A2 20150630; BR PI1013443 B1 20210112; CN 102061976 A 20110518; CN 102061976 B 20150701; ES 2741537 T3 20200211
DOCDB simple family (application)
EP 09425469 A 20091117; AU 2010236069 A 20101028; BR PI1013443 A 20101117; CN 201010547599 A 20101117; ES 09425469 T 20091117