SimDriveline

Modeling a Vehicle Powertrain   4:29

Model a vehicle powertrain, including gears, tires, engine, and longitudinal vehicle dynamics.

Simscape Language: Mechanical Example   7:30  

Model custom mechanical components using the Simscape language. A nonlinear rotational spring is defined using implicit equations.

Modeling an Automatic Transmission and Controller   3:23

Model an automatic transmission using planetary gears and clutches. The control logic is modeled as a state machine.

Modeling a Ratchet Mechanism with Leadscrew   5:11  

Model a ratchet mechanism driving a leadscrew. The screw turns in one direction and the leadscrew cannot be back-driven by the mechanical load.

Planetary Gear With Losses   2:31  

Configure a planetary gear model to include losses. The efficiency of the planetary gear is valid for all power flow combinations.

Importing Measured Data to Estimate Fuel Economy   3:30  

Import measured data on fuel consumption to estimate fuel economy. A surface is fit to the measurement data and used in simulation of a hybrid-electric vehicle.

Translating SimDriveline Models   4:23  

Automatically translate models to use the new Simscape-based SimDriveline library. A conversion tool (sdl_update) converts the entire model, preserving the structure.

Optimizing Shift Schedule to Maximize Fuel Economy   5:33  

Optimize 20 parameters in a shift schedule to maximize fuel economy for a dual-clutch transmission. Global optimization algorithms and parallel computing are used to accelerate the optimization.

Shorten Parameter Sweeps with Parallel Computing   3:33  

Run simulations in parallel on a multicore desktop. Various shift schedules for a dual-clutch transmission are tested in multiple simulations executed simultaneously.

Analyzing and Documenting Results   4:02  

Automatically run tests and generate a report documenting simulation results.

Tune Parameters to Match Simulation Results   4:18  

Tune parameter values in abstracted models to match simulation results from detailed models. Optimization algorithms are used to automatically tune parameters of a dual-clutch transmission model.

Animating Power Flow Through a Dual-Clutch Transmission   4:04  

Use a 3D animation to verify clutch states and shaft speeds in a dual-clutch transmission. Control animation states using a MATLAB GUI.

Simulating In Real Time: Electromechanical Example   5:34  

Configure multiple, independent solvers to enable real-time simulation. The model of a Hybrid Electric Vehicle (HEV) model is simulated on a real-time target.

Hardware-in-the-loop (HIL) Testing   5:21

Use HIL testing instead of hardware prototypes to test control algorithms. A multidomain physical model is converted to C code and simulated on controller hardware.

Protecting Intellectual Property in Subsystems   4:39  

Share physical models without exposing intellectual property. The protected subsystems can be used for simulation and parameter testing.

Protecting Simscape Language Components   2:31  

Share Simscape language source code without exposing your intellectual property. The protected components can be used for simulation and parameter testing.

Vehicle With Automatic Transmission    

Vehicle With Four-Wheel Drive    

Vehicle With Dual Clutch Transmission    

Ravigneaux Four-Speed Transmission    

Hydraulically-Actuated Driveline Clutch    

Variable Gear    

Gearbox Efficiency Measurement    

Epicyclic Gear Efficiency Measurement    

Custom Planetary Gear    

Clutch-Controlled Limited Slip Differential    

Flexible Shaft    

Stepping Mechanism With Leadscrew