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Function
With the ignition off or in the event of a break in the activation cable, the radiator shutter is not locked. After engine startup, the engine control module switches the solenoid switch to ground and thus closes prevents the radiator shutter from opening.
When one or more of the following conditions exist when the vehicle is being driven, the magnetic lock for the radiator shutter is deactivated.
Coolant temperature > 90°C
Transmission fluid temperature > 110°C
Engine oil temperature > 130°C
Power to map thermostat > 90% (only DME)
Electric fan active
Design of the characteristic map thermostat
The characteristic map thermostat is an integral thermostat, i.e. the thermostat and thermostat cover make up one unit.
The principle mechanical design of the characteristic map thermostat corresponds to that of a conventional thermostat. However, a heating element is additionally integrated in the expansion element (wax element).
Function of the characteristic map thermostat
The characteristic map thermostat is designed such that it opens (engine inlet) at a coolant temperature at the thermostat of 103oC without intervention of the integrated heating system. Due to the coolant heating up in the engine, a temperature of approx. 110 o C is measured at the point the coolant flows out of the engine (installation location of coolant temperature sensor for DME and instrument cluster gauge). This is the operating temperature of the engine, at which the characteristic map thermostat begins to open without control intervention.
In the event of control intervention by the DME control module, power (12 V) is applied to the heating element integrated in the thermostat. Heating the expansion element means that the thermostat now opens at lower coolant temperatures than would be the case without the additional heating function (thermostat control range: approx. 80oC - 103oC).
When the vehicle is driven, the closed radiator shutter reduces the warm-up phase of the engine. In higher road speed ranges, this improves the CW value of the vehicle.
acid napísal:Napadlo ma uz aj to:) Ak by bolo leto, nic ine by mi asi zatial ani neostavalo, takto v zime sa to chladi v pohode aj so zavretymi zaluziami.
Co sa tyka tej aerodynamiky, vo WDS pisu:Kód: Vybrať všetkoWhen the vehicle is driven, the closed radiator shutter reduces the warm-up phase of the engine. In higher road speed ranges, this improves the CW value of the vehicle.
Podla nich to vlastne aerodynamiku zlepsuje, sranda.
V kazdom pripade by som ale bol rad, keby mi to fungovalo ako ma, uz len z principu a tiez preto, ze sa mi to paci. Su to take mile vychytavky od tych Nemcurov :)
defe napísal:ja som to vcera skusal chladny motor-zaluzie zavrete,teply motor-zaluzie tiez zavrete,vipol motor-zaluzie sa dali otvorit, cez leto som nemal problem s chladenim
When one or more of the following conditions exist when the vehicle is being driven...