From a8faa63aba2d6378f64e2a4736fe95980733c78e Mon Sep 17 00:00:00 2001
From: Markus Quaritsch <markus.quaritsch@tugraz.at>
Date: Thu, 9 May 2019 13:48:53 +0200
Subject: [PATCH] clear shiftlossenergy if remaining shift time is
non-negative; check TC operating point if possibe for engine (case creeping)
---
.../Models/SimulationComponent/Impl/ATGearbox.cs | 4 +++-
.../SimulationComponent/Impl/ATShiftStrategy.cs | 2 +-
.../SimulationComponent/Impl/TorqueConverter.cs | 13 +++++++++++--
3 files changed, 15 insertions(+), 4 deletions(-)
diff --git a/VectoCore/VectoCore/Models/SimulationComponent/Impl/ATGearbox.cs b/VectoCore/VectoCore/Models/SimulationComponent/Impl/ATGearbox.cs
index 7ba29d28ac..51da402b0e 100644
--- a/VectoCore/VectoCore/Models/SimulationComponent/Impl/ATGearbox.cs
+++ b/VectoCore/VectoCore/Models/SimulationComponent/Impl/ATGearbox.cs
@@ -303,8 +303,10 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Impl
var avgEngineSpeed = (DataBus.EngineSpeed + outAngularVelocity * effectiveRatio) / 2;
powershiftLoss = aliquotEnergyLoss / dt / avgEngineSpeed;
inTorque += powershiftLoss;
-
+
//inTorque += CurrentState.PowershiftLossEnergy;
+ } else {
+ _powershiftLossEnergy = null;
}
}
diff --git a/VectoCore/VectoCore/Models/SimulationComponent/Impl/ATShiftStrategy.cs b/VectoCore/VectoCore/Models/SimulationComponent/Impl/ATShiftStrategy.cs
index 40e1c4a434..a2a7fae5b8 100644
--- a/VectoCore/VectoCore/Models/SimulationComponent/Impl/ATShiftStrategy.cs
+++ b/VectoCore/VectoCore/Models/SimulationComponent/Impl/ATShiftStrategy.cs
@@ -245,7 +245,7 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Impl
var nextGearboxInTorque = outTorque / nextGear.TorqueConverterRatio;
var shiftLosses = _gearbox.ComputeShiftLosses(outTorque, outAngularVelocity, gear + 1) / ModelData.PowershiftShiftTime / nextGearboxInSpeed;
nextGearboxInTorque += shiftLosses;
- var tcOperatingPoint = _gearbox.TorqueConverter.FindOperatingPoint(nextGearboxInTorque, nextGearboxInSpeed);
+ var tcOperatingPoint = _gearbox.TorqueConverter.FindOperatingPoint(absTime, dt, nextGearboxInTorque, nextGearboxInSpeed);
var engineSpeedOverMin = tcOperatingPoint.InAngularVelocity.IsGreater(minEngineSpeed);
var avgSpeed = (DataBus.EngineSpeed + tcOperatingPoint.InAngularVelocity) / 2;
diff --git a/VectoCore/VectoCore/Models/SimulationComponent/Impl/TorqueConverter.cs b/VectoCore/VectoCore/Models/SimulationComponent/Impl/TorqueConverter.cs
index e26ffc6ceb..80fa01293c 100644
--- a/VectoCore/VectoCore/Models/SimulationComponent/Impl/TorqueConverter.cs
+++ b/VectoCore/VectoCore/Models/SimulationComponent/Impl/TorqueConverter.cs
@@ -102,7 +102,7 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Impl
Second absTime, Second dt, NewtonMeter outTorque, PerSecond outAngularVelocity,
bool dryRun = false)
{
- var operatingPoint = FindOperatingPoint(outTorque, outAngularVelocity);
+ var operatingPoint = FindOperatingPoint(absTime, dt, outTorque, outAngularVelocity);
var inTorque = CalculateAverageInTorque(operatingPoint);
if (dryRun) {
@@ -316,7 +316,7 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Impl
return retVal;
}
- protected internal TorqueConverterOperatingPoint FindOperatingPoint(
+ protected internal TorqueConverterOperatingPoint FindOperatingPoint(Second absTime, Second dt,
NewtonMeter outTorque,
PerSecond outAngularVelocity)
{
@@ -324,6 +324,15 @@ 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);
+
+ var engineResponse = (ResponseDryRun)
+ NextComponent.Request(absTime, dt, tqOperatingPoint.InTorque, tqOperatingPoint.InAngularVelocity, true);
+
+ var engineOK = engineResponse.DeltaDragLoad.IsGreaterOrEqual(0) && engineResponse.DeltaFullLoad.IsSmallerOrEqual(0);
+ if (!engineOK) {
+ tqOperatingPoint = ModelData.FindOperatingPoint(VectoMath.Max(DataBus.EngineIdleSpeed, DataBus.EngineSpeed * 0.9), outAngularVelocity);
+ }
+
tqOperatingPoint.Creeping = true;
return tqOperatingPoint;
}
--
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