.VehicleInterfaces.Transmissions

Information

The transmission subsystem interfaces are defined in this sub-package of the VehicleInterfaces library. The transmission subsystem has the following connectors some of which are optional (see below for more information):

• engineFlange – 1D rotational connection to the engine subsystem (or other systems connected to the transmission input)
• drivelineFlange – 1D rotational connection to the driveline subsystem (or other systems connected to the transmission output)
• controlBus – control signal bus connection
• clutchPedal – 1D translational connection for the clutch pedal connection to the driverEnvironment (optional, for manual gearboxes only)
• shiftConnector – shift connection to the driverEnvironment (optional, for manual gearboxes only)
• transmissionMount – MultiBody connection to transmit the transmission mount reactions (optional)

The optional connectors are, by default, disabled and can be ignored if not required. They can be enabled by setting the appropriate parameter to be true. This is only possible at design time, i.e. when you are building the subsystem model.

Effects to be modelled in this subsystem

Within the VehicleIntefaces package the transmission subsystem is used to model the transmission of torque from the input shaft to the output shaft. The connections to the engine and driveline subsystems are via 1D rotational connectors. The torque reaction in to the transmission housing and the housing itself are also to be modelled in this subsystem if required. The torque reactions, if included, should all be referred back to a single reference frame for the transmission housing (the transmissionMount connector).

Contents

Name	Description
Tutorial	Transmissions Tutorial
Interfaces	Collection of interface definitions for transmission
NoTransmissions	Empty transmission
SingleGearAutomaticTransmission	Simple fixed gear ratio, automatic transmission, no torque converter
SingleGearManualTransmission	Simple fixed gear ratio, manual transmission, uses physical connectors
PowerSplitDevice	Simple power split device based on an ideal epicyclic gear
Internal	Collection of internal material involving transmission