Build Full Electric Vehicle Model

The electric vehicle (EV) reference application represents a full electric vehicle model with a motor-generator, battery, direct-drive transmission, and associated powertrain control algorithms. Use the electric vehicle reference application for powertrain matching analysis and component selection, control and diagnostic algorithm design, and hardware-in-the-loop (HIL) testing. To create and open a working copy of the conventional vehicle reference application project, enter

autoblkEvStart 

The electric vehicle reference application is configured with a mapped motor and battery. This diagram shows the powertrain configuration.

Note

The Virtual Vehicle Composer configures the conventional vehicle reference application. If you want to the change the configuration, use the Virtual Vehicle Composer to specify a different powertrain and vehicle.

This table describes the blocks and subsystems in the reference application.

Reference Application Element	Description
Analyze Power and Energy	Double-click Analyze Power and Energy to open a live script. Run the script to evaluate and report power and energy consumption at the component- and system-level. For more information about the live script, see Analyze Power and Energy.
Scenarios	Implements the Drive Cycle Source block to generate a FTP75 (2474 seconds) drive cycle.
Environment	Creates environment variables, including road grade, wind velocity, and ambient temperature and pressure.
Driver Commands	Implements the Longitudinal Driver to generate normalized acceleration and braking commands.
Controllers	Implements the electric vehicle control unit (VCU) and the battery management system (BMS).
Vehicle	Implements a passenger car that contains a motor-generator, battery, and direct-drive transmission.
Visualization	Displays vehicle-level performance, battery state of charge (SOC), and equivalent fuel economy results that are useful for powertrain matching and component selection analysis.

Evaluate and Report Power and Energy

Double-click Analyze Power and Energy to open a live script. Run the script to evaluate and report power and energy consumption at the component- and system-level.

The script provides:

• An overall energy summary that you can export to an Excel^® spreadsheet.

• Electric plant and drivetrain plant efficiencies.

• Data logging so that you can use the Simulation Data Inspector to analyze the powertrain efficiency and energy transfer signals.

For more information about the live script, see Analyze Power and Energy.

Controllers

The controller subsystem implements the electric vehicle control unit (VCU) and the battery management system (BMS).

To determine the motor torque and brake pressure commands, the reference application implements a supervisory controller. Specifically, the powertrain control module (PCM) implements:

• Regenerative braking control

• Motor torque arbitration and power management

  • Converts the driver accelerator pedal signal to a torque request.

  • Converts the driver brake pedal signal to a brake pressure request. The algorithm multiplies the brake pedal signal by a maximum brake pressure.

  • Implements a regenerative braking algorithm for the traction motor to recover the maximum amount of kinetic energy from the vehicle.

  • Implements a virtual battery management system. The algorithm outputs the dynamic discharge and charge power limits as functions of battery state of charge (SOC).

  • Implements a power management algorithm that ensures the battery dynamic discharge and charge power limits are not exceeded.

Vehicle

The Virtual Vehicle Composer configures the electric vehicle reference application vehicle subsystem. If you want to the change the configuration, use the Virtual Vehicle Composer to specify a different powertrain and vehicle

The electric vehicle has the characteristics provided in this table.

Element	Description
Battery	Implements the Datasheet Battery block to configure a lithium-ion battery pack.
Wheels and Brakes	Implements the Longitudinal Wheel block with disc brakes to configure drivetrain for front wheel drive.
Vehicle Body	Implements the Vehicle Body 3DOF Longitudinal block to configure vehicle for 3 degrees-of-freedom.
Electric Machine	Implements the Mapped Motor block.