WOLFRAM SYSTEM MODELER

AutomaticTransmission

Model of an automatic transmission using a TCU, a clutch, and a gearbox.

Diagram

Wolfram Language

In[1]:=
SystemModel["IndustryExamples.AutomotiveTransportation.Driveline.Components.TransmissionPackage.AutomaticTransmission"]
Out[1]:=

Information

This is a model of an automatic transmission using a TCU, a clutch, and a gearbox.

Parameters (1)

gearSwitch

Value: {24.135, 40.225, 64.36, 72.405}

Type: Real[4]

Description: Speed at which to switch gears

Connectors (6)

drivingTorque

Type: Flange_a

Description: One-dimensional rotational flange of a shaft (filled circle icon)
torqueToDifferential

Type: Flange_b

Description: One-dimensional rotational flange of a shaft (non-filled circle icon)
vehicleSpeed

Type: RealInput

Description: 'input Real' as connector
mode

Type: RealInput

Description: 'input Real' as connector
clutchSignal

Type: RealOutput

Description: 'output Real' as connector
engineSpeed

Type: RealInput

Description: 'input Real' as connector

Components (3)

clutch1

Type: Clutch

Description: Clutch based on Coulomb friction
TCU1

Type: TCU

Description: Transmission control unit that controls the gears and transmission clutch based on engine speed (rpm), vehicle speed (km/h), and desired driving direction (−1 = reverse, 0 = neutral, 1 = forward).
gearbox

Type: BasicGearbox

Description: Gearbox using default gear ratios according to specification from a small car.

Used in Examples (1)

DrivelineModel

IndustryExamples.AutomotiveTransportation.Driveline

A standard model of a driveline. Used for analyzing a drive cycle using the bundled Wolfram Language notebook.