﻿GET_GEVOMechL2_05_01_01_19 - ANIMATION Screen
1
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The Engine Management System (EMS) software monitors the intake manifold air temperature on the engine by means of the MAT sensor.

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Based on this information, the EMS controls each shutter and fan separately to regulate the temperature.

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There are eight possible cooling configurations.

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To avoid over-cycling of a single fan or shutter, each device is cycled ON/OFF or OPEN/CLOSED in an alternating manner.

5
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As manifold air temperature increases, each shutter position (both closed, one open, or both open) is commanded sequentially with both fans OFF until the shutters are completely open.

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Note that there is a minimum holding time between each change of shutter position.

7
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If the manifold air temperature exceeds the set point with the shutters fully open, one intercooler fan is turned ON and both shutters are closed to limit the increase in intercooler air flow.

8
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If additional air flow is required, the first shutter is opened.

9
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If the temperature continues to rise, the second shutter is opened.

10
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If the temperature again exceeds the set point, the second intercooler fan is turned ON and one shutter is closed.

11
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If additional air flow is required, the second shutter is opened, resulting in both fans in service and both shutters in the fully open position to provide maximum cooling.

