From 6f6dbb511e1d3973a1a7f99e5c3dd96f6b871c2c Mon Sep 17 00:00:00 2001
From: Markus Quaritsch <markus.quaritsch@tugraz.at>
Date: Tue, 22 Sep 2015 08:55:40 +0200
Subject: [PATCH] initialize gear for velocity != 0, testcase
---
.../SimulationComponent/Impl/ShiftStrategy.cs | 19 ++++++++++++++-
.../GearboxPowertrainTest.cs | 23 +++++++++++++++++++
2 files changed, 41 insertions(+), 1 deletion(-)
diff --git a/VectoCore/Models/SimulationComponent/Impl/ShiftStrategy.cs b/VectoCore/Models/SimulationComponent/Impl/ShiftStrategy.cs
index 7ae4f076bc..e840a4b221 100644
--- a/VectoCore/Models/SimulationComponent/Impl/ShiftStrategy.cs
+++ b/VectoCore/Models/SimulationComponent/Impl/ShiftStrategy.cs
@@ -158,8 +158,25 @@ namespace TUGraz.VectoCore.Models.SimulationComponent.Impl
}
return 1;
}
+ for (var gear = (uint)Data.Gears.Count; gear > 1; gear--) {
+ var response = Gearbox.Initialize(gear, outTorque, outEngineSpeed);
+
+ var currentPower = response.EnginePowerRequest;
+ var inAngularSpeed = outEngineSpeed * Data.Gears[gear].Ratio;
+ var inTorque = currentPower / inAngularSpeed;
+
+ var fullLoadPower = currentPower - response.DeltaFullLoad;
+ var reserve = 1 - (currentPower / fullLoadPower).Cast<Scalar>();
+
+ if (!IsBelowDownShiftCurve(gear, inTorque, inAngularSpeed) && !IsAboveUpShiftCurve(gear, inTorque, inAngularSpeed) &&
+ reserve >= Data.StartTorqueReserve / 100) {
+ return gear;
+ }
+ if (IsAboveUpShiftCurve(gear, inTorque, inAngularSpeed) && gear < Data.Gears.Count) {
+ return gear + 1;
+ }
+ }
- // todo else
return 1;
}
}
diff --git a/VectoCoreTest/Models/SimulationComponent/GearboxPowertrainTest.cs b/VectoCoreTest/Models/SimulationComponent/GearboxPowertrainTest.cs
index d85995518c..9eb57c45cf 100644
--- a/VectoCoreTest/Models/SimulationComponent/GearboxPowertrainTest.cs
+++ b/VectoCoreTest/Models/SimulationComponent/GearboxPowertrainTest.cs
@@ -93,6 +93,29 @@ namespace TUGraz.VectoCore.Tests.Models.SimulationComponent
AssertHelper.AreRelativeEqual(593.202.RPMtoRad(), container.EngineSpeed);
}
+ [TestMethod]
+ public void Gearbox_Initialize_85_RefLoad()
+ {
+ var cycle = CreateCycleData(new[] {
+ // <s>,<v>,<grad>,<stop>
+ " 0, 85, 2.95016969027809, 0",
+ " 100, 85, 2.95016969027809, 0",
+ });
+ var container = CreatePowerTrain(cycle, "Gearbox_Initialize.vmod", 7500.0.SI<Kilogram>(), 19300.SI<Kilogram>());
+ var retVal = container.Cycle.Initialize();
+ Assert.AreEqual(11u, container.Gear);
+ Assert.IsInstanceOfType(retVal, typeof(ResponseSuccess));
+
+ AssertHelper.AreRelativeEqual(1195.996.RPMtoRad(), container.EngineSpeed);
+
+ var absTime = 0.SI<Second>();
+ var ds = 1.SI<Meter>();
+
+ retVal = container.Cycle.Request(absTime, ds);
+ container.CommitSimulationStep(absTime, retVal.SimulationInterval);
+ absTime += retVal.SimulationInterval;
+ }
+
// ===============================
--
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