adapt testcase because clutch is not slipping during normal drive

VectoCore/VectoCoreTest/Models/SimulationComponent/GearboxPowertrainTest.cs

@@ -51,7 +51,7 @@ namespace TUGraz.VectoCore.Tests.Models.SimulationComponent
 			var container = Truck40tPowerTrain.CreatePowerTrain(cycle, "Gearbox_Initialize", 7500.0.SI<Kilogram>(),
 				0.SI<Kilogram>());
 			var retVal = container.Cycle.Initialize();
-			Assert.AreEqual(5u, container.Gear);
+			Assert.AreEqual(4u, container.Gear);
 			Assert.IsInstanceOfType(retVal, typeof(ResponseSuccess));
 
 			AssertHelper.AreRelativeEqual(560.RPMtoRad(), container.EngineSpeed);
@@ -67,8 +67,8 @@ namespace TUGraz.VectoCore.Tests.Models.SimulationComponent
 
 			container.Cycle.Request(absTime, ds);
 			container.CommitSimulationStep(absTime, retVal.SimulationInterval);
-			Assert.AreEqual(3u, container.Gear);
-			AssertHelper.AreRelativeEqual(67.6649, container.EngineSpeed);
+			Assert.AreEqual(4u, container.Gear);
+			AssertHelper.AreRelativeEqual(65.6890, container.EngineSpeed);
 		}
 
 		[TestMethod]