CVT for Scooter Models

The Two-Wheeler Library in Altair MotionView includes a CVT Powertrain model. The Altair CVT Powertrain is a mathematical formulation that represents an automobile IC engine powertrain with CVT in the form of Control State Equations (CSE). The CSE can be used independently and along with full vehicle models. The Equations represent the following components of the powertrain:
  • Internal Combustion Engine (IC Engine)
  • CVT

The powertrain model can read and interpolate a 3-D Engine Torque Map to determine the torque output of an engine based on vehicle states and throttle input. It further models a CVT which act as a clutch and also transmits the torque to the gear box and can be engaged, disengaged and shifts depending on the engine rpm. The following topics describe in detail the formulation used to model a Powertrain and describe the parameters that determine the functioning of it.