RELEASE 8.0 OF ALL DYNATUNE TOOLS
DYNATUNE R&H MODULE RELEASE 8.0 "EXPERT" & "RACE" VERSION
Being the first of all DYNATUNE-XL Tools, the R&H tool has received some significant upgrades. It is fair to say that almost all of the calculation procedures have been entirely re-written for performance improvements, both from a physical as numerical perspective. There are a lot of new features and improvements of which the most important are:
The Main New Feature is a largely revised "Enhanced Tire Model" and a new worksheet dedicated solely to the Tire Models. The Tire Models are no longer integrated in the "CHASSIS DATA" Worksheet but do now live in their own "TIRE DATA" Worksheet.
The Main New Feature is a largely revised "Enhanced Tire Model" and a new worksheet dedicated solely to the Tire Models. The Tire Models are no longer integrated in the "CHASSIS DATA" Worksheet but do now live in their own "TIRE DATA" Worksheet.
- Tire Grip / Friction Coefficient has become a Load Dependent Parameter which will truly allow the User to "Create your Own Tire". Making Tire Grip Load Dependent has had major consequences on all calculations and has added significant coherence to the results..
- The Enhanced Tire Model does provide the 4 instantaneous Tire Operating Points in the 7-DOF Vehicle Model.
- Many Tire Plotting Features have been added.
A small, but very useful feature is Front & Rear Ride Height Adjustment. On the request of many users this feature has been implement and any change in Ride Height will affect CoG-Height & Roll Center Height as actually happening in real life.
The 7-DOF Handling Model does now provide ulterior information on the effects of Suspension Compliance on Tire Forces and does show the Tire Operating Points on the Tire Map. This does allow the User to immediately identify which axle is limiting car performance performance and by how much.
The 7-DOF Handling Model does now provide ulterior information on the effects of Suspension Compliance on Tire Forces and does show the Tire Operating Points on the Tire Map. This does allow the User to immediately identify which axle is limiting car performance performance and by how much.
Further to many other detailed improvements R&H RELEASE 8.0 does provide a very convenient "Laptime Sensitivity Study" allowing the User to a run a Study, which of the typical track-side tuning parameters does provide the most gain in Laptime for the given track. Up to 20 Parameters can be set.
As the R&H EXPERT Version has always been slightly biassed towards the typical OEM Vision of Vehicle Dynamics Development, the EXPERT 8.0 Release has therefore seen some major enhancements in the Frequency Steer & Step Steer Procedures. Several added automatic procedures do now allow to cover the whole Velocity Range in "One Go" providing to the Expert Vehicle Dynamicist a "One Blink of An Eye" Overview for Stability and Transient Response. The "RACE" Version does not have these features as it has been optimized primarily for Laptime Simulation.
DYNATUNE SDM MODULE RELEASE 8.0 "RACE" & "EXPERT" VERSION
As the Suspension Design Module has been fully up to date for Suspension Kinematics, the focus for Improvements has been on details and Load Case Analysis Enhancements.
Both "RACE" & "EXPERT" Version do now allow to attach the Push-Rod / Spring Damper Unit to the Upright/Knuckle for analyzing Combined Jounce & Steering Motions and investigate the effect on Ride Height changes for these particular suspension configurations.
The "EXPERT" Version comes with an major update to the "Vehicle Loadcase Generation" Tool and a new automatic procedure to create out of these Vehicle Load Cases 12 Suspension Link Load Cases. A basic "R&H-Type" Vehicle Model does allow to create Vehicle Corner Loads which in a secondary step are being transformed into Suspension Link Loads. Dynamic Load Factors can be considered.
A very helpful tool to check Link Loads and Suspension Compliance's in an early Concept Stage or a useful guideline for the Club Racer who is into modifying his own vehicle.
Both "RACE" & "EXPERT" Version do now allow to attach the Push-Rod / Spring Damper Unit to the Upright/Knuckle for analyzing Combined Jounce & Steering Motions and investigate the effect on Ride Height changes for these particular suspension configurations.
The "EXPERT" Version comes with an major update to the "Vehicle Loadcase Generation" Tool and a new automatic procedure to create out of these Vehicle Load Cases 12 Suspension Link Load Cases. A basic "R&H-Type" Vehicle Model does allow to create Vehicle Corner Loads which in a secondary step are being transformed into Suspension Link Loads. Dynamic Load Factors can be considered.
A very helpful tool to check Link Loads and Suspension Compliance's in an early Concept Stage or a useful guideline for the Club Racer who is into modifying his own vehicle.
DYNATUNE SUSPENSION TUNING MODULE RELEASE 8.0
The Suspension Tuning Module has received some major enhancements in RELEASE 8.0 making it even more efficient and more valuable as a superb Tuning Tool for Spring & Damper Setup.
The 4-Poster Frequency Domain Sweep can now be executed with a "Constant Input Velocity Signal" allowing to address specific damper speeds. On top of that this signal does allow to post-process non-linear damper curves more accurately and is therefore not limited to creating an averaged damping value for the analysis.
The 4-Poster Frequency Domain Sweep can now be executed with a "Constant Input Velocity Signal" allowing to address specific damper speeds. On top of that this signal does allow to post-process non-linear damper curves more accurately and is therefore not limited to creating an averaged damping value for the analysis.
The Frequency Response Sweep does provide a whole range of additional results, all aimed at describing the ride performance more accurately. Dynamic Percentages of Critical Damping, Dynamic Tire Contact Patch Loads and Dissipated Energies in Tire and Dampers are a few to mention.
The Time Domain Ride "Step" Function has been joined by the "Half Sine" Function allowing to investigate more accurately "Kerb-Stone-Like" Events. On top of that the Tire Model can now "loose" contact with the ground and hence can simulate Dynamic Contact Patch Load Fluctuations more accurately.
DYNATUNE DRIVE-LINE DESIGN MODULE RELEASE 8.0
The Drive-Line Design Module comes in RELEASE 8.0 with 2 Major Enhancements:
- The Tool has been "Electrified" allowing to simulate a typical E-Drive Powertrain with a fixed Ratio.
- Rotational Inertia's of the Drive Line (ICE/MCU, Clutch & Gearbox) and Wheels can now be fully considered.
DYNATUNE BRAKE-SYSTEM DESIGN MODULE RELEASE 8.0
The Brake-System Design Module comes in RELEASE 8.0 also with 2 Major Enhancements:
- Algorithms in the Tool have been upgraded to deal with a "Classic" OEM-Type Tandem Brake Master Cilinder.
- High Downforce & High Drag Vehicle characteristics have been implemented in Braking Performance Analysis.
RELEASE 7.1 OF DYNATUNE RIDE & HANDLING.
scroll down for INFO on DYNATUNE SUSPENSION DESIGN MODULE RELEASE 7.1
RELEASE 7.1 of DYNATUNE RIDE & HANDLING has been focused on incorporating the most commonly asked Functionality Improvements from the User Community and on adding more Technical Content in order to Enhance the Model Capabilities in specific area's.
The Table below summarizes the most important New Features in DYNATUNE RIDE & HANDLING RELEASE 7.1. All New Features are ONLY in PRO & EXPERT Version, since development on BASE & LIGHT Version has ended.
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Additional Tire Parameters, Extended Suspension Load Deflection Parameters and Steering Characteristics allow more detailed Steering Wheel Angle analysis and more accurate Performance Trade Off Studies.
Suspension Toe, Camber & Aligning Torque Compliance Characteristics do now play an even more important role and affect more directly the maximum Tire Performance under Braking and Cornering. Besides these purely Technical Enhancements a new "Constant Radius Test" Procedure has been implemented and Kinematic Suspension Data created in DYNATUNE SUSPENSION DESIGN MODULE can now directly be imported into DYNATUNE RIDE & HANDLING SETUP TOOL. |
BASIC STEERING SYSTEM INCORPORATED IN 6 DOF VEHICLE MODEL
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In order to consider more details of the effect of the steering system on the vehicle lateral g performance a basic Ackermann Steering System has been implemented into the 6 DOF Vehicle Model allowing the model to predict more accurately the correct Steering Wheel Angle.
Also the effect of Camber Gain changes with Steer Angle (due to Caster and King Pin Angle) is now considered by a Suspension Parameter and permits to simulate better the consequences of additional Camber Thrust on Lateral Vehicle Performance & Balance. |
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NEW SUSPENSION AND TIRE PARAMETERS
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Extended Suspension NON-LINEARITY with Rebound-Stop permits enhanced flexibility in customizing Vehicle Setups.
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Differentiated Front & Rear Tire Grip Levels permit total freedom of Tire Choice on the Model and an additional new Tire Performance Parameter allows to consider the important effect of Camber (Inclination) Angle on the Longitudinal Grip Level of the Tire. This Characteristic is of particular interest for High Performance Tires in "Camber vs. Traction" Trade Off Studies in Lap Time Simulation.
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FULL NON-LINEAR IMPLEMENTATION OF SUSPENSION COMPLIANCE & BUNDORF IN NON-LINEAR TIRE OPERATING RANGE
In DYNATUNE the Suspension Compliance Characteristics are considered via the BUNDORF THEORY into the LINEAR Range of Vehicle Dynamics and extrapolated via his US/OS Budget (Gradient) assumptions into the NON-LINEAR Range.
In RELEASE 7.1 the BUNDORF THEORY has been been fully integrated into the NON-LINEAR Range and does therefor directly affect the Maximum Lateral and Longitudinal Performance of the Tire and Vehicle. On top of that the experienced user may select to port all Suspension Compliance Interactions directly into the Enhanced Tire Model for achieving maximum accuracy at the very highest lateral acceleration levels.
These Model Enhancements permit to directly evaluate the effects of all Suspension Compliance Characteristics on Maximum Cornering Capability, a Unique and New Opportunity for Optimizing Vehicle Stability AND Vehicle Cornering Performance which can usually be found only in very complex Multi-Body Mechanical Systems Analysis Tools with specialist Tire Models.
NEW & ENHANCED CALCULATION PROCEDURES
Several Calculation Procedures have been revised and adapted to the new model features whilst focusing on User Interface Comfort as well as on reducing Calculation Time wherever possible.
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The most important New Calculation Procedure is the "Constant Radius Sweep" Test which allows a similar 10 Step Full Lateral Acceleration Analysis as the "Constant Velocity Sweep" but for a Fixed Radius (and Increasing Speed) and not a Fixed Speed (and Decreasing Radius).
This Test Procedure is also one of the most commonly used Objective Real Life Measurement Procedures in the Automotive Industry. Racers can use this Procedure for Optimize their Setup for a Specific Corner Apex. The "Specific" Calculation Test Procedure has been modified to be a "Mini Full Lateral Acceleration Sweep" Test in order to achieve the requested Vehicle Lateral and/or Longitudinal Acceleration Condition in just "One Single Iteration Loop". |
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Beyond that the 3D Performance Envelope Calculation Procedure is now up to 3.5 Times Faster due to a new Reduced Point Fitting Algorithm at a marginal cost for Accuracy. This significant improvement of Calculation Times allows especially those who work a lot with Lap Time Optimization to do more Analysis. The slower but more accurate up to RELEASE 7.0 used Calculation Procedure will however remain available as a user selection-able option, allowing a full calculation of each Grid Point.
ADDITIONAL DATA MANAGEMENT PROCEDURES
For increased User Convenience and Data Exchange Possibilities some New Data Management Procedures have been implemented.
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In RELEASE 7.1 one can import directly the relevant Kinematic Suspension Data created by DYNATUNE SUSPENSION DESIGN MODULE into DYNATUNE RIDE & HANDLING, both for Front as for Rear Suspension.
This enables a very quick and convenient way of incorporating the key Kinematic Output Data from a Suspension Analysis in DYNATUNE SDM directly into the corresponding cells on the various sheets of DYNATUNE R&H. Besides these two New Procedures, one can also from the Master Dashboard "Directly" Export or Import the Actual Model Data into an External Excel Sheet, respectively Load Data into the Current Model without going though the "Set Reference Data" Procedure and "Export" Procedure on the "Results" Sheet. |
RELEASE 7.1 OF DYNATUNE SUSPENSION DESIGN MODULE.
RELEASE 7.1 of DYNATUNE SUSPENSION DESIGN MODULE has been almost entirely focused on incorporating the most commonly requested User Interface Enhancements from the User Community.
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The Table below summarizes the most important New Features in DYNATUNE SUSPENSION DESIGN MODULE RELEASE 7.1.
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Both the "Base" as "Race" Version of DYNATUNE SUSPENSION DESIGN MODULE RELEASE 7.1 come with Example Templates for the 3 Standard Suspension Architectures. The "Base" Version has inherited from the "Race" Version the Possibility of Hiding/Showing the various Standard Post Processing Graphs.
An additional Steering Rack Parameter permits to calculate the Overall Steering Ratio. Furthermore Specific Data Export Procedures to External Sheets or for creating a Specific DYNATUNE RIDE & HANDLING Suspension Data Input Set have been developed. |
Both "Base" and the "Race" Version come with a new USER TOOL that permits easy Conversion of Suspension Anti-Angles into Vehicle Percentage Anti-Lift & Anti-Dive.
BASE SUSPENSION TEMPLATES
All Versions come with a Standard Example Template for a Generic 5-Link Suspension, a McPherson Strut Suspension and an Integral Link Suspension. |
SHOW & HIDE Graphs
The "Base" Version comes in RELEASE 7.1 with the Feature to Hide / Unhide the Standard Post Processing Graphs for Jounce and Steering on the Master Control Sheet. |
RESULTS EXPORT
In both "Base" as "Race" Version the RESULTS Sheet can be exported to an External Workbook for external elaboration or usage in alternative Simulation Tools. |
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With the newly added Parameter "Steering Rack Ratio" both "Base" and "Race" Version can calculate in RELEASE 7.1 the "Overall Steering Ratio" of the Suspension. In addition to the "Base" Version, the "Race" Version provides the possibility to look up the tabular RESULTS for Jounce Motion at any desired Reference Wheel Position.
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HISTORIC RACE CARS
As per request of many enthusiast of Historic Race Cars, in Release 7.1 both the "Base" as "Race" Version have been upgraded to allow the correct simulation of famous historic race car spring/damper leverage designs that were used for many years in Formula 1 and even nowadays in some modern sports cars.
As per request of many enthusiast of Historic Race Cars, in Release 7.1 both the "Base" as "Race" Version have been upgraded to allow the correct simulation of famous historic race car spring/damper leverage designs that were used for many years in Formula 1 and even nowadays in some modern sports cars.
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ADDITIONAL DATA MANAGEMENT PROCEDURES
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In RELEASE 7.1 of DYNATUNE SUSPENSION DESIGN MODULE one can next to the already existing Geometry Import & Export Features create a Specific Exchange File containing all the Relevant Kinematic Data of Front & Rear Suspension as Input for DYNATUNE RIDE & HANDLING, allowing a quick and error free transfer of data. In the "Race" Version the Exchange File can be created at any Reference Wheel Position simulating settings at various Riding Heights.
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ANTI-LIFT & ANTI-DIVE USER TOOL
Both DYNATUNE SUSPENSION DESIGN MODULE Variants come with a new USER TOOL, that allows easy conversion of Suspension Anti-Angles into more commonly used Vehicle Percentage Anti's. The User can decide to use it as a Generic Standalone Tool (and enter all necessary data) or use the Calculated Suspension Characteristics from the Geometry Section as Reference Input Parameters. Fully flexible.
