torque converter: introduce creeping flag; dry-run: return delta drag-load and...

torque converter: introduce creeping flag; dry-run: return delta drag-load and delta full-load (don't guess what's required); set creeping flag accordingly

VectoCore/VectoCore/Models/SimulationComponent/Data/Gearbox/TorqueConverterData.cs

@@ -275,6 +275,7 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Data.Gearbox
 
 		public double SpeedRatio;
 		public double TorqueRatio;
+		public bool Creeping;
 
 		public override string ToString()
 		{

VectoCore/VectoCore/Models/SimulationComponent/Impl/TorqueConverter.cs

@@ -118,6 +118,21 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Impl
 				//	: GetDragPowerOperatingPoint(dt, outAngularVelocity, engineResponse,
 				//		PreviousState.InTorque * PreviousState.InAngularVelocity);
 				//}
+				var condition1 = (DataBus.DriverBehavior != DrivingBehavior.Braking && DataBus.BrakePower.IsEqual(0));
+				var condition2 = (outTorque.IsGreater(0) && DataBus.BrakePower.IsEqual(0));
+
+				var engineOK = engineResponse.DeltaDragLoad.IsGreaterOrEqual(0) && engineResponse.DeltaFullLoad.IsSmallerOrEqual(0);
+				if (DataBus.DriverBehavior != DrivingBehavior.Braking && engineOK && operatingPoint.Creeping) {
+					var delta = (outTorque - operatingPoint.OutTorque) *
+								(PreviousState.OutAngularVelocity + operatingPoint.OutAngularVelocity) / 2.0;
+					return new ResponseDryRun() {
+						Source = this,
+						DeltaFullLoad = delta,
+						DeltaDragLoad = delta,
+						TorqueConverterOperatingPoint = operatingPoint
+					};
+				}
+
 				var dryOperatingPointMax = GetMaxPowerOperatingPoint(dt, outAngularVelocity, engineResponse,
 					PreviousState.InTorque * PreviousState.InAngularVelocity);
 				var avgOutSpeedMax = (PreviousState.OutAngularVelocity + dryOperatingPointMax.OutAngularVelocity) / 2.0;
@@ -183,7 +198,9 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Impl
 				return operatingPoint;
 			} catch (VectoException ve) {
 				Log.Error(ve, "TorqueConverter: Failed to find operating point for DragPower {0}", engineResponse.DragPower);
-				return ModelData.FindOperatingPoint(engineResponse.EngineSpeed, outAngularVelocity);
+				var retVal = ModelData.FindOperatingPoint(engineResponse.EngineSpeed, outAngularVelocity);
+				retVal.Creeping = true;
+				return retVal;
 			}
 		}
 
@@ -202,7 +219,9 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Impl
 			} catch (VectoException ve) {
 				Log.Error(ve, "TorqueConverter: Failed to find operating point for MaxPower {0}",
 					engineResponse.DynamicFullLoadPower);
-				throw;
+				var tqOperatingPoint = ModelData.FindOperatingPoint(DataBus.EngineIdleSpeed, outAngularVelocity);
+				tqOperatingPoint.Creeping = true;
+				return tqOperatingPoint;
 			}
 		}
 
@@ -213,6 +232,7 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Impl
 			if (operatingPointList.Count == 0) {
 				Log.Debug("TorqueConverter: Failed to find torque converter operating point, fallback: creeping");
 				var tqOperatingPoint = ModelData.FindOperatingPoint(DataBus.EngineIdleSpeed, outAngularVelocity);
+				tqOperatingPoint.Creeping = true;
 				return tqOperatingPoint;
 			}