From 41b2f5fd6a0b10ff948e091bad7cfe93872acefb Mon Sep 17 00:00:00 2001
From: Markus Quaritsch <markus.quaritsch@tugraz.at>
Date: Thu, 13 Aug 2020 15:20:16 +0200
Subject: [PATCH] electric motor: if em torque equals drag torque (interpolated
from drag curve) set electric power to 0 (power map may not be equal to 0 for
all cases (either no entries or slightly off due to different interpolation
in power map))
---
.../SimulationComponent/Impl/ElectricMotor.cs | 35 +++++++++++++++----
1 file changed, 28 insertions(+), 7 deletions(-)
diff --git a/VectoCore/VectoCore/Models/SimulationComponent/Impl/ElectricMotor.cs b/VectoCore/VectoCore/Models/SimulationComponent/Impl/ElectricMotor.cs
index d42a2e6b7c..3d44327a70 100644
--- a/VectoCore/VectoCore/Models/SimulationComponent/Impl/ElectricMotor.cs
+++ b/VectoCore/VectoCore/Models/SimulationComponent/Impl/ElectricMotor.cs
@@ -120,7 +120,9 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Impl
}
- protected virtual IResponse HandleRequest(Second absTime, Second dt, NewtonMeter outTorque, PerSecond outAngularVelocity, bool dryRun, NewtonMeter maxDriveTorque, NewtonMeter maxRecuperationTorque)
+ protected virtual IResponse HandleRequest(
+ Second absTime, Second dt, NewtonMeter outTorque, PerSecond outAngularVelocity, bool dryRun,
+ NewtonMeter maxDriveTorque, NewtonMeter maxRecuperationTorque)
{
var avgSpeed = (PreviousState.OutAngularVelocity + outAngularVelocity) / 2;
@@ -128,6 +130,7 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Impl
? 0.SI<NewtonMeter>()
: Formulas.InertiaPower(outAngularVelocity, PreviousState.OutAngularVelocity, ModelData.Inertia, dt) / avgSpeed;
var inTorque = outTorque + inertiaTorqueLoss;
+
//var maxDriveTorque = ModelData.FullLoadCurve.FullLoadDriveTorque(avgSpeed);
//var maxDragTorque = ModelData.FullLoadCurve.FullGenerationTorque(avgSpeed);
if (!dryRun) {
@@ -139,20 +142,27 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Impl
var retVal = ForwardRequest(absTime, dt, inTorque, inTorque, outAngularVelocity, null, dryRun);
return retVal;
}
- var eMotorTorque = Control.MechanicalAssistPower(absTime, dt, inTorque, PreviousState.OutAngularVelocity, outAngularVelocity, maxDriveTorque, maxRecuperationTorque, Position, dryRun);
- if (Position == PowertrainPosition.HybridP2 && !DataBus.GearboxInfo.GearEngaged(absTime)/* && !DataBus.ClutchInfo.ClutchClosed(absTime)*/) {
+ var eMotorTorque = Control.MechanicalAssistPower(
+ absTime, dt, inTorque, PreviousState.OutAngularVelocity, outAngularVelocity, maxDriveTorque, maxRecuperationTorque,
+ Position, dryRun);
+
+ if (Position == PowertrainPosition.HybridP2 &&
+ !DataBus.GearboxInfo.GearEngaged(absTime) /* && !DataBus.ClutchInfo.ClutchClosed(absTime)*/) {
// electric motor is between gearbox and clutch, but no gear is engaged...
if (eMotorTorque != null) {
throw new VectoSimulationException("electric motor cannot provide torque when gearbox and clutch are disengaged");
}
+
var electricSystemResponse = ElectricPower.Request(absTime, dt, 0.SI<Watt>(), dryRun);
if (!dryRun) {
if (!(electricSystemResponse is ElectricSystemResponseSuccess)) {
throw new VectoException("unexpected response from electric system: {0}", electricSystemResponse);
}
+
SetState(inTorque, outAngularVelocity);
}
+
var retVal = NextComponent.Request(absTime, dt, outTorque, outAngularVelocity, dryRun);
retVal.ElectricMotor.ElectricMotorPowerMech = 0.SI<Watt>();
retVal.ElectricSystem = electricSystemResponse;
@@ -165,6 +175,7 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Impl
retVal.ElectricMotor.InertiaPowerDemand = inertiaTorqueLoss * avgSpeed;
return retVal;
}
+
//if (eMotorTorque.IsEqual(0, 1e-3))
//{
// var electricSystemResponse = ElectricPower.Request(absTime, dt, 0.SI<Watt>(), dryRun);
@@ -175,14 +186,24 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Impl
// return retVal;
//}
- if (!dryRun && !eMotorTorque.IsBetween(maxDriveTorque ?? 0.SI<NewtonMeter>(), maxRecuperationTorque ?? 0.SI<NewtonMeter>())) {
- throw new VectoException("Invalid operating point provided by strategy! SupportPower: {0}, max Power: {1}, min Power: {2}", eMotorTorque, maxDriveTorque, maxRecuperationTorque);
+ if (!dryRun && !eMotorTorque.IsBetween(
+ maxDriveTorque ?? 0.SI<NewtonMeter>(), maxRecuperationTorque ?? 0.SI<NewtonMeter>())) {
+ throw new VectoException(
+ "Invalid operating point provided by strategy! SupportPower: {0}, max Power: {1}, min Power: {2}", eMotorTorque,
+ maxDriveTorque, maxRecuperationTorque);
}
+
var electricPower = ModelData.EfficiencyMap
- .LookupElectricPower(avgSpeed, eMotorTorque, DataBus.ExecutionMode != ExecutionMode.Declaration).ElectricalPower;
+ .LookupElectricPower(avgSpeed, eMotorTorque, DataBus.ExecutionMode != ExecutionMode.Declaration)
+ .ElectricalPower;
+
+ if (ModelData.DragCurve.Lookup(avgSpeed).IsEqual(eMotorTorque)) {
+ electricPower = 0.SI<Watt>();
+ }
+
- var electricSupplyResponse = ElectricPower.Request(absTime, dt, electricPower, dryRun);
+ var electricSupplyResponse = ElectricPower.Request(absTime, dt, electricPower, dryRun);
//if (!dryRun && !(electricSupplyResponse is ElectricSystemResponseSuccess) &&
// electricPower > electricSupplyResponse.MaxPowerDrag) {
// // can't charge all power into the battery - probably it's full
--
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