Configure Virtual Vehicle Data

Step 2 of 7 in Get Started with the Virtual Vehicle Composer

Before completing this step, see Setup Virtual Vehicle.

Next, use the Data and Calibration options to configure the virtual vehicle chassis, tire, brake type, powertrain, environment and driver. The available options depend on the virtual vehicle Powertrain architecture and Model template parameter settings.

Chassis

Use the Chassis parameter to select the body dynamics. The available options depend on the virtual vehicle Setup > Vehicle dynamics parameter.

For this example, set Chassis to Vehicle Body 3DOF Longitudinal.

1. Tire to Longitudinal Tire to configure a tire model suitable for drive cycle analysis.

   • On the Vehicle Data tab, enter the tire data for your virtual vehicle, including:

     • PlntWhlLdRadius — Loaded radius

     • PlntWhlMass — Wheel mass

     For this example, use the default parameter values.

2. Brake Type to Disc.

   • On the Vehicle Data tab, enter the brake type data for your virtual vehicle, including:

     • PlntBrkStcFricCff — Static friction coefficient

     • PlntBrkKinFricCff — Kinetic friction coefficient

     For this example, use the default parameter values.

Tire and Brake

Use the Tire and Brake Type options to specify the tire and brake parameter data.

1. Set Tire to MF Tires Longitudinal to configure a tire model suitable for drive cycle analysis.

   • On the Tire Data tab, enter the tire data for your virtual vehicle, including:

     • PlntWhlLdRadius — Loaded radius

     • PlntWhlPrsFrnt — Front wheel pressure

     For this example, use the default parameter values.

2. Brake Type to Disc.

   • On the Vehicle Data tab, enter the brake type data for your virtual vehicle, including:

     • PlntBrkStcFricCff — Static friction coefficient

     • PlntBrkKinFricCff — Kinetic friction coefficient

     For this example, use the default parameter values.

Powertrain

Use the Powertrain parameters to select the engine, transmission, drivetrain, differential system, and electrical system parameters for your virtual vehicle. The available options depend on the virtual vehicle Powertrain architecture and Model template parameter settings.

For this example, under Powertrain, set:

1. Vehicle Control Unit to EV 1EM.

2. Engine to EV 1EM.

3. Drivetrain to Front Wheel Drive.

4. Drivetrain > Front Differential System to Open Differential.

5. Electrical System to Electrical System 1EM.

   • Use the DC-DC Converter parameters to specify DC-to-DC conversion electrical losses or measured efficiency.

     • PlntDCDCPwrLmt — Converter power limit

     • PlntDCDCEff — Converter efficiency

   • Use the Electric Machine (Motor) parameters to specify a mapped motor and drive electronics operating in torque-control model, including:

     • PlntEM1Spd — Vector of rotational speeds

     • PlntEM1EffTbl — Corresponding efficiency

   • Use the Energy Storage parameters to specify a datasheet battery model for lithium-ion battery, including:

     • PlntBattOpenCirctVolt — Open circuit voltage table data

     • PlntBattVoltSocBpt — Open circuit voltage breakpoints

Driver

Use the Driver parameter to select the driver. The available options depend on the virtual vehicle Powertrain architecture and Model template parameter settings.

For this example, set Driver to Longitudinal Driver to implement a driver suitable for drive-cycle tracking.

• Enter the driver data for your virtual vehicle, including:

  • DriverAeroRes — Aerodynamic drag coefficient

  • DriverDrivelineRes — Rolling and driveline resistance coefficient

  For this example, use the default parameter values.

Environment

Use the Environment parameter to select the environment. For this example, set Environment to Standard Ambient.

• Enter the environment data for your virtual vehicle, including:

  • EnvAirTemp — Ambient air temperature

  • EnvWindVelX — Ambient wind velocity in X direction

  For this example, use the default parameter values.

After completing this step, see Configure Virtual Vehicle Scenario and Test.