﻿GET_GEVOMechL2_02_01_01_40 - ANIMATION Screen
1
00:00:00,000 --> 00:00:11,292
Loss of Both Engine Oil Temperature Sensors Protection: If both engine oil temperature sensors (ELIT and ELOT) are declared as bad, the engine shuts down.

2
00:00:11,292 --> 00:00:18,833
If one of the sensors is bad, the ECU models the good sensor to provide a substitute value for the bad sensor.

3
00:00:18,833 --> 00:00:29,542
If the ELIT sensor is bad, the equation used to obtain the substitute value is ELIT = ELOT - 15°F.

4
00:00:29,542 --> 00:00:38,417
If the ELOT sensor is bad, the equation used is ELOT = ELIT + 15°F.

5
00:00:38,417 --> 00:00:52,917
Crankcase Overpressure Protection: In the event that crankcase pressure, as measured by the COP sensor, exceeds a primary limit for 0.5 seconds or a secondary limit for 10 seconds, the engine shuts down.

6
00:00:52,917 --> 00:00:59,708
The engine cannot be restarted until the fault has been reset by means of a smart display in Level 3.

7
00:00:59,708 --> 00:01:05,083
The primary limit is equal to 2 inches of water plus the ambient pressure delta.

8
00:01:05,083 --> 00:01:11,625
The secondary limit is equal to the value from the secondary limit table plus the ambient pressure delta.

9
00:01:11,625 --> 00:01:20,958
If a sudden change in ambient pressure occurs, as measured by the BAP sensor, the delta (or spike) is factored into the COP calculation.

10
00:01:20,958 --> 00:01:28,125
Adding the ambient pressure delta keeps a sudden change in outside ambient pressure from tripping the COP sensor.

11
00:01:28,125 --> 00:01:35,708
For example, if the locomotive is in a tunnel and the doors at the end of the tunnel open, the pressure in the tunnel suddenly changes.

12
00:01:35,708 --> 00:01:42,000
In this case, the outside pressure changed and not the internal crankcase pressure of the engine.
