recordVehicleData
Vehicle parameters
Extends from Modelica.Icons.Record (Icon for records).
Information
This parameter record summarizes the parameters of a vehicle.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| String | DataName | "empty" | Name of dataset |
| Modelica.Units.SI.Mass | m | Total mass including driver | |
| Modelica.Units.SI.Acceleration | aNominal | Nominal acceleration | |
| Modelica.Units.SI.Velocity | vNominal | Nominal speed | |
| Modelica.Units.SI.Length | Rsub | (rFront + rRear)/2/ratioGear | Substitute wheel radius motor - track |
| Modelica.Units.SI.Mass | mDyn | m + 2*(JFront + JRear)/((rFront + rRear)/2)^2 | Substitute (dynamic) mass |
| Brakes | |||
| Real | brakeFront | 0.5 | Front braking force / total braking force |
| Modelica.Units.SI.Force | fBrakeFront | m*aNominal*brakeFront | Nominal braking force front |
| Modelica.Units.SI.Force | fBrakeRear | m*aNominal*(1 - brakeFront) | Nominal braking force rear |
| Brakes › Result | |||
| Modelica.Units.SI.Torque | tauBrakeFront | fBrakeFront*rFront | Nominal braking torque front |
| Modelica.Units.SI.Torque | tauBrakeRear | fBrakeRear*rRear | Nominal braking torque rear |
| Resistances | |||
| Modelica.Units.SI.Area | A | Front area | |
| Modelica.Units.SI.Density | rho | 1.18 | Density of air at 25 degC |
| Real | cw | Drag coefficient | |
| Resistances › Result | |||
| Modelica.Units.SI.Force | Fdrag | rho/2*A*cw*vNominal^2 | Drag resistance at nominal speed |
| Wheels | |||
| Modelica.Units.SI.Length | rFront | Front wheel radius | |
| Modelica.Units.SI.Inertia | JFront | Front wheel inertia | |
| Modelica.Units.SI.Length | rRear | Rear wheel radius | |
| Modelica.Units.SI.Inertia | JRear | Rear wheel inertia | |
| Driveline | |||
| Real | ratioGear | Ratio of gearbox | |
| Real | etaGear | Constant efficiency of gearbox | |
| Real | etaDiff | Constant efficiency of differential | |
| Driveline › Result | |||
| Modelica.Units.SI.Torque | tauDriveNominal | m*aNominal*(rFront + rRear)/2/ratioGear | Estimated nominal drive torque |
| Modelica.Units.SI.AngularVelocity | wDriveNominal | vNominal/(rFront + rRear)*2*ratioGear | Estimated nominal drive speed |
| Modelica.Units.SI.Inertia | JVehicle | (m*((rFront + rRear)/2)^2 + 2*(JFront + JRear))/ratioGear^2 | Estimated eqvivalent inertia w.r.t. motor shaft |