youen/vehicle-simulator
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updated motor consumption with a more realistic model, based on potential energy

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Youen Toupin 2021-11-21 15:51:56 +01:00
parent 1b39d85cb5
commit a14d37582c
2 changed files with 2890 additions and 23 deletions
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2886
simulator/package-lock.json generated
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27
simulator/src/simulator.ts
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@ -7,23 +7,24 @@ namespace Simulator {
solarPanelEfficiency: number = 0.15;
solarPanelArea: number = 1.0; // in square meters
emptyVehicleWeight: number = 80; // kg
driverWeight: number = 60; // kg
additionalWeight: number; // additional weight, not counting cyclist and empty vehicle weight, in kg
motorConsumption(distance: number, ascendingElevation: number): number {
const g = 9.8;
let totalWeight = this.emptyVehicleWeight + this.driverWeight + this.additionalWeight;
let potentialEnergy = totalWeight * g * ascendingElevation; // Ep = m*g*h (result in Joules)
potentialEnergy = potentialEnergy / 3600; // convert joules to watt-hour
// empirical measures
let maxWeight = 200; // in kg
let maxWeightAdditionalConsumption = 4; // in Wh/km
let maxTestedElevation = 500; // in meters
let maxTestedElevationConsumption = 7; // in Wh/m
let baseConsumption = 14; // in Wh/km
let baseConsumption = 13; // in Wh/km
let maxWeight = 300; // in kg
let additionalConsumptionAtMaxWeight = 5; // in Wh/km (without accounting for ascending elevation, only accelerations and additional friction)
let weightRelatedConsumption = MathUtils.clamp(this.additionalWeight * maxWeightAdditionalConsumption / maxWeight, 0, maxWeightAdditionalConsumption);
let weightRelatedConsumption = MathUtils.clamp(totalWeight * additionalConsumptionAtMaxWeight / maxWeight, 0, additionalConsumptionAtMaxWeight);
// TODO: should not be multiplied by distance
// TODO: should be multiplied by total vehicle weight
let elevationRelatedConsumption = MathUtils.clamp(ascendingElevation * maxTestedElevationConsumption / maxTestedElevation, 0, maxTestedElevationConsumption);
return distance * (baseConsumption + weightRelatedConsumption + elevationRelatedConsumption)
return distance * (baseConsumption + weightRelatedConsumption) + potentialEnergy;
}
solarPower(irradiance: number): number {
@ -55,7 +56,7 @@ namespace Simulator {
}
outing.distance = dailyRatio * this.dailyDistance;
outing.ascendingElevation = this.dailyAscendingElevation;
outing.ascendingElevation = dailyRatio * this.dailyAscendingElevation;
}
}
@ -92,7 +93,7 @@ namespace Simulator {
planning.getOuting(day % 7, hour, outing);
let consumption = vehicle.motorConsumption(outing.distance, outing.ascendingElevation);
let consumption = outing.distance > 0 ? vehicle.motorConsumption(outing.distance, outing.ascendingElevation) : 0;
let production = vehicle.solarPower(solarIrradiance[hourIdx]) * 1.0; // produced energy in Wh is equal to power (W) multiplied by time (h)
result.totalProducedSolarEnergy += production;