Additional Features

Your application may support one or more of the following features.

Residual Bus Simulation

The e-powertrain applications take account for when only the transmission control unit (TCU) is present. Since the TCU evaluates CAN messages from other vehicle control units (e.g., engine speed of the ECU), these CAN messages must be simulated.

There are two approaches to simulating these CAN messages and making them available to the TCU:

  • Residual bus simulation in PAtools
  • Residual bus simulation in an external system (mostly provided by customer)

Various features are available for implementation of the remaining bus simulation in PAtools:

  • Importer for DBC files
  • Operation groups for the cyclical calculation of the CAN messages (2 ms, 5 ms, 10 ms…50 ms, 80 ms,100 ms, 200 ms, 500 ms, 1000 ms)
  • Deactivation of the CAN communication when Ignition off

The structure of the residual bus simulation is customer- and vehicle-specific, sometimes even project-specific. For this reason, no general approach is possible.

Vehicle Model and RLS (Vehicle-Related Testing Only)

With RLS, the absorbers behave like vehicle wheels on a road.

The following control mode combinations are implemented with the vehicle model and RLS.

Table 10. Control Mode Combinations
Number Name DUT Test Bench Drive
11 α/RLS Accelerator pedal position α Road gradient and braking deceleration
13 T/RLS Torque TFM Road gradient and braking deceleration