DYNATUNE-XL RIDE & HANDLING MODULE (R&H)
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Due to a wealthy knowledge base acquired over many years on various different vehicle types DYNATUNE-XL R&H MODULE offers a unique platform in MS EXCEL® for professional automotive development engineers, race engineers, mechanical engineering students and vehicle dynamics enthusiasts. |
Besides being a proven and highly appreciated development tool, DYNATUNE-XL R&H MODULE has been embraced by many concept engineers for its ability of being a quick benchmark and convenient upfront target setting tool. Even lap-time simulation specialists perform initial setup try-outs in DYNATUNE-XL R&H MODULE in order to verify quickly, whether their ideas would be sufficiently fruitful for running a full simulation in a complex & time consuming model with many more Degrees of Freedom.
DYNATUNE-XL DOES OFFER TWO VERY HELPFUL DOCUMENTS TO ENHANCE THE UNDERSTANDING OF VEHICLE DYNAMICS
- THE 5 "MUST KNOW" FUNDAMENTALS OF VEHICLE DYNAMICS
- THE 10 "EASY" STEPS TO HAPPY VEHICLE DYNAMICS TUNING GUIDE
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Example Spring, ARB & Damper Setup
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Example Spring, ARB & Damper Setup
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Comparison Spring, ARB & Damper Setup
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DYNATUNE-XL RIDE & HANDLING MODULE is the "Central" Tool of the DYNATUNE-XL Simulation Tool Suite and does offer an All-In-One Tool to Analyze the Influence of various Parameters on Vehicle Stability, Maximum Cornering Performance and Basic Ride Performance. Some of these parameters can be investigated more detailed in the other tools that are available in our Suite.
Each of those 3 Key Areas comes with their own Specific Tool-Set and Simulation Features as shown in the overview below:
Each of those 3 Key Areas comes with their own Specific Tool-Set and Simulation Features as shown in the overview below:
2 LEVELS OF CHOICE
Historically DYNATUNE-XL R&H developed over the years from it's initial commercial launch in 2010 from the "LIGHT" Version via "BASE" and "PRO" Version into its remaining current 2 Final Versions - RACE & EXPERT - in RELEASE 8.1.
The Table of Variants further down on the right does provide an excellent overview of all Content in the RACE & EXPERT Versions and does document nicely the historic evolution of the Tool into its various variants.
The Table of Variants further down on the right does provide an excellent overview of all Content in the RACE & EXPERT Versions and does document nicely the historic evolution of the Tool into its various variants.
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DYNATUNE-XL R&H MODULE has been developed and tested in a real life vehicle dynamics development environment, straight forward, self explaining & focused on the best possible result with the absolute minimum of necessary data.
DYNATUNE-XL R&H MODULE does not require any additional complex & costly pre- or post-processing software neither does the user have to be an expert in MATLAB ®, ADAMS ® or any other complex pre-/post-processing & analysis tools. Basic MS EXCEL ® skills and a sound basic understanding of vehicle dynamics are sufficient to start operating the program. Every version comes with standard lay-out of features, tools and post-processing charts for the most efficient analysis. All metrics relate to over twenty years of experience and are considered to be the correct amount of data needed to evaluate the quality of your vehicle. |
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The table summarizes historically the key features for all available versions up to the last RELEASE 8.1. As mentioned above in RELEASE 8.1 do remain only RACE & EXPERT Version. Please continue reading the Features, Modeling & What's New Page for more details.
The interested Reader/User can find below a Description of all Historic Versions.
The interested Reader/User can find below a Description of all Historic Versions.
DYNATUNE-XL LIGHT VERSION
The APP you always wanted ....
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The DYNATUNE "LIGHT" version is the "historical" backbone of DYNATUNE and contains all of the original worksheets from 30 years ago. It offers linear calculations only, meaning that no bump-stops can be activated and that the Base Tire Model (with the partially linear cornering stiffness approach) is the only tire model available. Nevertheless approximately 90% of customer orientated vehicle behavior analysis can be evaluated with linear equations (as linear bicycle models demonstrate being the backbone of every ESP system). The linear models are by definition the least complex and thus the best suited models for understanding basic vehicle behavior. Typically these type linear analysis are referred to as GENERIC, equally called so in DYNATUNE. The linear vehicle behavior can be investigated for various speeds (= Aerodynamics & Yaw Damping) and longitudinal accelerations (= Longitudinal Load Transfer, Weight Distribution) in order to analyze their effects on tire behavior and thus vehicle stability and Under- / Oversteer behavior.
Ride calculations are focused and limited to Natural Frequencies, Bounce & Pitch Centers and calculation of Percentage Critical Damping. Tire grip level & aerodynamic data are limited to typical road car values.
Each DYNATUNE Version contains a "USER" Sheet permitting the user to perform own additional calculations.
The DYNATUNE "LIGHT" Version is primarily intended for novice', students & enthusiasts who are interested in Vehicle Dynamics. Not having any non-linear effects, it provides an optimal tool for understanding the basics of vehicle behavior without the rather complex back-coupling of various non-linear components. This tool is a must have for any automotive engineer active in the field of vehicle dynamics.
Ride calculations are focused and limited to Natural Frequencies, Bounce & Pitch Centers and calculation of Percentage Critical Damping. Tire grip level & aerodynamic data are limited to typical road car values.
Each DYNATUNE Version contains a "USER" Sheet permitting the user to perform own additional calculations.
The DYNATUNE "LIGHT" Version is primarily intended for novice', students & enthusiasts who are interested in Vehicle Dynamics. Not having any non-linear effects, it provides an optimal tool for understanding the basics of vehicle behavior without the rather complex back-coupling of various non-linear components. This tool is a must have for any automotive engineer active in the field of vehicle dynamics.
DYNATUNE-xL BASE VERSION
All you need to get the basics right .....
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The DYNATUNE "BASE" Version provides with respect to the "LIGHT" Version as main additional feature the possibility of adding a non-linear bump-stop which can significantly change the RIDE & HANDLING characteristics. Non-Linear behavior implies often a change of state of the calculation model causing increasing integration and solver complexity. The base non-linear calculation allows investigating of 1 particular (SPECIFIC) point of interest for a given Speed, Steering Wheel Angle and/or combination of Lateral and Longitudinal Acceleration. This point can be compared to the results of the GENERIC linear calculation.
Ride calculations offer further to the features of the "LIGHT" Version additional Carpet Plots for selecting the best front and rear wheel rate combinations and the possibility of calculation a linear Ride Step Input Response - a dynamic event in the time domain simulating a discrete obstacle - with the DYNATUNE dynamic ride model. This feature allows a more in-depth evaluation of transient damping effects on body and wheel movements. Furthermore an additional Ride Frequency Transfer Function allows the analysis in the frequency domain plotting frequency related damping behavior of front and rear body & wheels in a spectral range from 0 - 20 Hz, with according identification of key metrics.
Tire grip levels include slick tire friction coefficient levels and aerodynamic data can reflect effects of Non-Ride-Height dependent aerodynamic down force coefficients.
The DYNATUNE "BASE" Version provides all the basic principles for non-linear analysis. Ideal for those, who already have a basic understanding about Vehicle Dynamics and want to enhance their skills and start understanding the complex world of non-linear back-coupling of aerodynamics, bump stops, riding heights etc.
From "BASE" Versions upwards of DYNATUNE 7.0 various new USER-TOOLS have been included. Most interesting ones are the SUSPENSION DATA TOOL and TIRE DATA TOOL. These tools provide an elementary knowledge base for Tire Data and Suspension Kinematic & Compliance Data. Based on a selection range of parameters the tools suggest commonly used data for the selected Tire or Suspension.
The Tire Data can be plotted ("create your own tire") allowing a classical representation of a tire map. On request both selected Tire Data and/or Suspension Data can be copied automatically to the corresponding input cell on the data sheets.
In order to increase the accuracy of High Lateral Acceleration NON-LINEAR Calculations in the "BASE" Version and above is now also optionally an "Enhanced Tire Model" available which generates out of the partially linear "Basic Tire Model" a full NON-LINEAR tire look-up table MAP for Slip Angle vs. Lateral Force vs. Vertical Force.
Ride calculations offer further to the features of the "LIGHT" Version additional Carpet Plots for selecting the best front and rear wheel rate combinations and the possibility of calculation a linear Ride Step Input Response - a dynamic event in the time domain simulating a discrete obstacle - with the DYNATUNE dynamic ride model. This feature allows a more in-depth evaluation of transient damping effects on body and wheel movements. Furthermore an additional Ride Frequency Transfer Function allows the analysis in the frequency domain plotting frequency related damping behavior of front and rear body & wheels in a spectral range from 0 - 20 Hz, with according identification of key metrics.
Tire grip levels include slick tire friction coefficient levels and aerodynamic data can reflect effects of Non-Ride-Height dependent aerodynamic down force coefficients.
The DYNATUNE "BASE" Version provides all the basic principles for non-linear analysis. Ideal for those, who already have a basic understanding about Vehicle Dynamics and want to enhance their skills and start understanding the complex world of non-linear back-coupling of aerodynamics, bump stops, riding heights etc.
From "BASE" Versions upwards of DYNATUNE 7.0 various new USER-TOOLS have been included. Most interesting ones are the SUSPENSION DATA TOOL and TIRE DATA TOOL. These tools provide an elementary knowledge base for Tire Data and Suspension Kinematic & Compliance Data. Based on a selection range of parameters the tools suggest commonly used data for the selected Tire or Suspension.
The Tire Data can be plotted ("create your own tire") allowing a classical representation of a tire map. On request both selected Tire Data and/or Suspension Data can be copied automatically to the corresponding input cell on the data sheets.
In order to increase the accuracy of High Lateral Acceleration NON-LINEAR Calculations in the "BASE" Version and above is now also optionally an "Enhanced Tire Model" available which generates out of the partially linear "Basic Tire Model" a full NON-LINEAR tire look-up table MAP for Slip Angle vs. Lateral Force vs. Vertical Force.
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The DYNATUNE "PRO" Version and above allow as one of the most interesting user convenience features the possibility of saving the currently used car data set as a Reference Data Set (or reload the Reference Data Set) in a specific RESULTS sheet allowing quick comparison between two (or more variants). Beyond that the RESULTS sheets summarizes ALL input and output data of your actual and reference model allowing next to the already mentioned possibility of a direct comparison of 2 vehicles also room for further data and/or custom post-processing. Beyond that the RESULTS sheet contains a convenient IMPORT & EXPORT procedure for hassle-free model-input-output-data transfer from one DYNATUNE "PRO" license to another. Perfectly suited for sending data to and from OEM to Supplier or vice versa, from work to home or from one user to another !.
NEW in DYNATUNE 7.0 are in "PRO" Version the calculation procedures for PERFORMANCE ENVELOPES for all combinations of lateral and longitudinal accelerations as a function of velocity. These PERFORMANCE ENVELOPES are represented graphically as 3 dimensional Carpet Plots. Additionally Understeer & Sideslip Angle Gradients are shown in an isometric 3,5D projection as a function of longitudinal acceleration, lateral acceleration and velocity. A unique way to understand vehicle behavior in more than one dimension. These Calculations can be executed both in LINEAR as NON-LINEAR mode.
This DYNATUNE "PRO" Version is the version aimed for all professionals and enthusiasts that want to understand/learn as much as possible about Vehicle Dynamics using OEM Standards and Test-Procedures.
NEW in DYNATUNE 7.0 are in "PRO" Version the calculation procedures for PERFORMANCE ENVELOPES for all combinations of lateral and longitudinal accelerations as a function of velocity. These PERFORMANCE ENVELOPES are represented graphically as 3 dimensional Carpet Plots. Additionally Understeer & Sideslip Angle Gradients are shown in an isometric 3,5D projection as a function of longitudinal acceleration, lateral acceleration and velocity. A unique way to understand vehicle behavior in more than one dimension. These Calculations can be executed both in LINEAR as NON-LINEAR mode.
This DYNATUNE "PRO" Version is the version aimed for all professionals and enthusiasts that want to understand/learn as much as possible about Vehicle Dynamics using OEM Standards and Test-Procedures.
DYNATUNE-XL - RACE VERSION
Let's Go Racing ....
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The DYNATUNE "RACE" version provides over "LIGHT", "BASE" & "PRO" Version additional typical features commonly used in a racing environment such as Speed Dependent Tire Rolling Radius, Full Ride-Height Dependent 3D Aerodynamic Maps (wing-cars) and special suspension adaptions for typical 3rd spring F1 suspension layouts.
Next to the main calculation features of the "PRO" Version - the possibility to calculate a FULL NON-LINEAR lateral acceleration sweeps and Performance Envelopes the "RACE" Version has on top the capability of running a quasi-static (no inertial or damper effects considered) 2-D LAPTIME SIMULATION. A uniquely in EXCEL ® developed simulation engine has been created (using solely the automatic iterations feature) and in order to simulate custom race tracks or rallye stages an effective track generation & visualization procedure has been developed. Combined with a "MASTER" Simulation Control Panel and many convenient user controlled functions the "RACE" Version provides truly an efficient tool for quick and effective data generation & comparison. The laptime simulation procedure is focused on evaluating the quality of the vehicle setup. Engine and Driveline Parameters are considered generically and are assumed to be optimal all around the track.
NOTE 1): In the "RACE" Version both the generic STEP STEER & FREQUENCY STEER as generic RIDE STEP & RIDE FREQUENCY calculation procedures have been eliminated in order to reduce CPU Time. The Software is aimed to be used in a typical Racing Environment with emphasis on vehicle setups optimized solely for achieving maximum lateral acceleration.
NOTE 2): The "RACE" Version comes with a typical Wing Car Data set (Aero, Tires, Compliance)
Next to the main calculation features of the "PRO" Version - the possibility to calculate a FULL NON-LINEAR lateral acceleration sweeps and Performance Envelopes the "RACE" Version has on top the capability of running a quasi-static (no inertial or damper effects considered) 2-D LAPTIME SIMULATION. A uniquely in EXCEL ® developed simulation engine has been created (using solely the automatic iterations feature) and in order to simulate custom race tracks or rallye stages an effective track generation & visualization procedure has been developed. Combined with a "MASTER" Simulation Control Panel and many convenient user controlled functions the "RACE" Version provides truly an efficient tool for quick and effective data generation & comparison. The laptime simulation procedure is focused on evaluating the quality of the vehicle setup. Engine and Driveline Parameters are considered generically and are assumed to be optimal all around the track.
NOTE 1): In the "RACE" Version both the generic STEP STEER & FREQUENCY STEER as generic RIDE STEP & RIDE FREQUENCY calculation procedures have been eliminated in order to reduce CPU Time. The Software is aimed to be used in a typical Racing Environment with emphasis on vehicle setups optimized solely for achieving maximum lateral acceleration.
NOTE 2): The "RACE" Version comes with a typical Wing Car Data set (Aero, Tires, Compliance)
DYNATUNE-XL - EXPERT VERSION
For Experts Only ....
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The "EXPERT" combines all features from the "PRO" and "RACE" Version into one Tool and is intended to be used by all of those who want to investigate all aspects of Vehicle Dynamics, without reversing to hugely complex (multi-body-systems) tools, that need significant formation times on software use, come with considerable license costs and often need costly hardware to perform properly.