User manual MATLAB SIMDRIVELINE RELEASE NOTES

[. . . ] SimDrivelineTM Release Notes How to Contact The MathWorks Web Newsgroup www. mathworks. com/contact_TS. html Technical Support www. mathworks. com comp. soft-sys. matlab suggest@mathworks. com bugs@mathworks. com doc@mathworks. com service@mathworks. com info@mathworks. com Product enhancement suggestions Bug reports Documentation error reports Order status, license renewals, passcodes Sales, pricing, and general information 508-647-7000 (Phone) 508-647-7001 (Fax) The MathWorks, Inc. 3 Apple Hill Drive Natick, MA 01760-2098 For contact information about worldwide offices, see the MathWorks Web site. SimDrivelineTM Release Notes © COPYRIGHT 2004­2010 by the MathWorks, Inc. The software described in this document is furnished under a license agreement. The software may be used or copied only under the terms of the license agreement. [. . . ] To use the "What's This?" help, do the following: 1 Place your cursor over the label of a parameter. context menu appears. 8 Version 1. 5 (R2008a) SimDrivelineTM Software For example, the following figure shows the What's This?context menu appearing after a right-click on the Start time parameter in the Solver pane. 3 Click What's This?A context-sensitive help window appears showing a description of the parameter. 9 SimDrivelineTM Release Notes Version 1. 4 (R2007b) SimDriveline Software This table summarizes what's new in Version 1. 4 (R2007b): New Features and Changes Yes Version Compatibility Considerations No Fixed Bugs and Known Problems Bug Reports Includes fixes Related Documentation at Web Site No New features and changes introduced in this version are · "Interfacing with One-Dimensional Simscape Domains" on page 10 · "Run-Time Parameters Enabled for Three More Blocks" on page 10 · "New Demos" on page 11 · "Code Generation Documentation Consolidated to Simscape User's Guide" on page 11 Interfacing with One-Dimensional Simscape Domains The Rotational Coupling block of the new Interface Elements library allows you to connect a SimDriveline driveshaft (driveline connection line) to a Physical Networks line connected to Simscape blocks. The Rotational Coupling block transfers driveline angular velocity and torque as Physical Networks cross- and through-variables, respectively, without energy loss. Several new demos illustrate the use of the Interface Elements blocks. See "New Demos" on page 11. Run-Time Parameters Enabled for Three More Blocks Run-time parameters for code generation are now enabled for three additional blocks: · Controllable Friction Clutch (PeakFactor: static friction peak factor) · Initial Condition · Torsional Spring-Damper (Backlash: ±backlash: half of full backlash range) 10 Version 1. 4 (R2007b) SimDrivelineTM Software New Demos Two new demos have been added. Interface Blocks These demos illustrate how to use the new Interface Elements blocks. See "Interfacing with One-Dimensional Simscape Domains" on page 10. Consult the Simscape documentation for further details. Compatibility Considerations If you have an existing SimDriveline model with disabled or broken links from SimDriveline blocks to the SimDriveline block library, you must restore all the broken block library links for your model to be valid. If you have disabled or broken the SimDriveline library link for blocks that you have customized and want to keep these modified blocks in your model, you must move these modified blocks to your own custom library or libraries, then copy the block instances that you need to your model. You must still restore the block link to its parent library, whether that parent is the SimDriveline block library or your own. 13 SimDrivelineTM Release Notes Version 1. 2. 1 (R2006b) SimDriveline Software This table summarizes what's new in Version 1. 2. 1 (R2006b): New Features and Changes No Version Compatibility Considerations No Fixed Bugs and Known Problems Bug Reports Includes fixes Related Documentation at Web Site No 14 Version 1. 2 (R2006a) SimDrivelineTM Software Version 1. 2 (R2006a) SimDriveline Software This table summarizes what's new in V1. 2 (R2006a): New Features and Changes Yes Version Compatibility Considerations No Fixed Bugs and Known Problems Bug Reports at Web site Related Documentation at Web Site No New features and changes introduced in this version are · "Improved Clutch Locking and Unlocking" on page 15 · "Changed Transmission Template" on page 15 · "Run-time Parameters Enabled for Key Blocks" on page 16 · "Demos Expanded" on page 16 · "Documentation Enhancements" on page 17 Improved Clutch Locking and Unlocking The clutch now uses an improved state projection technique when your driveline's dynamic constraints (clutch modes) change. This method minimizes the kinetic energy of the difference between angular velocity states of the system before and after the change. As a result, clutch mode changes now yield more physical results. See the Controllable Friction Clutch block reference page. Changed Transmission Template A new transmission template, CR-CR 4-Speed, has replaced the Simpson 4-Speed transmission block in the Transmission Templates library. The new transmission is constructed and functions somewhat differently from the old one. See the block reference page for more details. You do not need to update Simpson 4-Speed transmissions in your old models with CR-CR 4-Speed blocks. Instances of transmission templates in your old 15 SimDrivelineTM Release Notes models are not linked to the Transmission Templates library. They continue as valid subsystems in any models where you use them. Run-time Parameters Enabled for Key Blocks Run-time parameters for code generation are now enabled for certain blocks: · Inertia · Simple Gear · Planet-Planet · Ring-Planet · Planetary Gear · Dual-Ratio Planetary · Ravigneaux · Differential Tunable Parameters Certain blocks have some run-time parameters tunable during simulation. The tunable parameters on each block are associated with normal Simulink blocks in the underlying subsystem. · Controllable Friction Clutch · Diesel Engine · Gasoline Engine · Hard Stop · Longitudinal Vehicle Dynamics · Tire · Torsional Spring-Damper Demos Expanded Seven new demos have been added. 16 Version 1. 2 (R2006a) SimDrivelineTM Software Animated Gear Demos These demos include five animated gear demos. They illustrate the motion of five complex gear sets. [. . . ] When you run the script on a model, it does not update any linked libraries. You must update each library separately the same way you would update a model. Caution Once you update a model this way, you cannot recover the old version. If you want to keep it, save the old version under a different name, or save the updated version under a new name. Efficiency Block Library and Demo The demos folder toolbox/physmod/drive/drivedemos contains a new block library with driveline efficiency loss blocks and one efficiency demo. Efficiency Library The drive_efficiency demo model is a block library. [. . . ]