Transmission and Drivetrain

Transmissions, torque converters, differentials, and controllers

In powertrains, the transmission and drivetrain comprise the driveline. Transmissions convert engine torque to drive shaft torque. Drivetrains convert the drive shaft torque to axle torque. Use the transmission and drivetrain blocks to assemble drivelines for torque capacity sizing and gear ratio impact on performance.

Blocks

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Drivetrain

Limited Slip Differential	Limited differential as a planetary bevel gear
Open Differential	Differential as a planetary bevel gear
Transfer Case	Differential as a planetary bevel gear
Longitudinal Wheel	Longitudinal wheel with disc, drum, or mapped brake

Transmissions

Automated Manual Transmission	Ideal automated manual transmission
Continuously Variable Transmission	Push belt continuously variable transmission with independent radii control
Dual Clutch Transmission	Dual clutch transmission that applies torque to the drive shaft
Ideal Fixed Gear Transmission	Ideal fixed gear transmission without clutch or synchronization

Transmission Controllers

AMT Controller	Automated manual transmission controller with clutch open, close, and synchronization timing
CVT Controller	Continuously variable transmission controller
DCT Controller	Dual clutch transmission controller

Couplings

Disc Clutch	Idealized disc clutch coupler
Gearbox	Ideal rotational gearbox
Planetary Gear	Ideal planetary gear with sun, ring, and carrier
Rotational Inertia	Ideal mechanical rotational inertia
Split Torsional Compliance	Split torsional coupler
Torque Converter	Three-part torque converter consisting of an impeller, turbine, and stator
Torsional Compliance	Parallel spring-damper

Featured Examples

Conventional Vehicle Reference Application

Simulate a full vehicle model with an internal combustion engine, transmission, and associated powertrain control algorithms. Use for powertrain matching analysis and component selection, control and diagnostic algorithm design, and hardware-in-the-loop (HIL) testing.

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CI Engine Dynamometer Reference Application

Simulate a CI engine plant and controller connected to a dynamometer with a tailpipe emission analyzer. Use to calibrate, validate, and optimize the CI engine controller and plant model parameters before integrating the engine with the vehicle model.

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SI Engine Dynamometer Reference Application

Simulate a SI engine plant and controller connected to a dynamometer with a tailpipe emission analyzer. Use to calibrate, validate, and optimize the SI engine controller and plant model parameters before integrating the engine with the vehicle model.

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