# Vehicle Modelling **URL:** https://forums.ipg-automotive.com/c/vehicle-modelling/12.md [Latest](https://forums.ipg-automotive.com/latest.md) · [Categories](https://forums.ipg-automotive.com/categories.md) · [Tags](https://forums.ipg-automotive.com/tags.md) --- ## [About the Vehicle Modelling category](https://forums.ipg-automotive.com/t/about-the-vehicle-modelling-category/18)
**Author:** [@david.barry](https://forums.ipg-automotive.com/u/david.barry)\ **Replies:** 0
A place to discuss vehicle modelling --- ## [Direct Suspension](https://forums.ipg-automotive.com/t/direct-suspension/2041)
**Author:** [@fcm.user\_26](https://forums.ipg-automotive.com/u/fcm.user_26)\ **Replies:** 1\ **Last updated:** [8 July 2026 15:54 UTC](https://forums.ipg-automotive.com/t/direct-suspension/2041 "2026-07-08T15:54:50Z")
Hello, I try to create a Direct Suspension in IPGKinematics, but I face some problems. First of all, there is no rocker and no stabilzer. I select None for Stabilizer Bar Fixing and Pull-/Pushrod Fixing (because there i… --- ## [Vehicle dose not accelerated after reaching 40kmph even if throttle is full](https://forums.ipg-automotive.com/t/vehicle-dose-not-accelerated-after-reaching-40kmph-even-if-throttle-is-full/2092)
**Author:** [@fcm.user\_26](https://forums.ipg-automotive.com/u/fcm.user_26)\ **Replies:** 1\ **Last updated:** [15 June 2026 10:40 UTC](https://forums.ipg-automotive.com/t/vehicle-dose-not-accelerated-after-reaching-40kmph-even-if-throttle-is-full/2092 "2026-06-15T10:40:45Z")
I am trying to run a acceleration condition with our teams vehicle. Everything runs as expected till the vehicle hits 40kmph after which the throttle remains 20% for a while and suddenly reached 100%.Even though the thro… --- ## [Driver adaption for AWD car](https://forums.ipg-automotive.com/t/driver-adaption-for-awd-car/2088)
**Author:** [@Seb03](https://forums.ipg-automotive.com/u/Seb03)\ **Replies:** 0\ **Last updated:** [9 June 2026 15:44 UTC](https://forums.ipg-automotive.com/t/driver-adaption-for-awd-car/2088 "2026-06-09T15:44:10Z")
I have encountered an issue with the driver adaption for AWD cars. According to the FSUK 2026 rules the ‚Driveline kind’ setting for the driver adapation always needs to be set to RWD. However, whenever I adapt an AWD ca… --- ## [How to fix rearmost point of the vehicle to Fr1/FrD?](https://forums.ipg-automotive.com/t/how-to-fix-rearmost-point-of-the-vehicle-to-fr1-frd/2080)
**Author:** [@DevT](https://forums.ipg-automotive.com/u/DevT)\ **Replies:** 0\ **Last updated:** [1 June 2026 10:24 UTC](https://forums.ipg-automotive.com/t/how-to-fix-rearmost-point-of-the-vehicle-to-fr1-frd/2080 "2026-06-01T10:24:55Z")
The graphic in the Vehicle Data Set Editor shows the rearmost point of my vehicle far away from Fr1 or Design Frame (FrD). I have attached a picture below, where my vehicle’s rearmost point is far from the Fr1!!! How to … --- ## [Bushing coordinate mismatch in Kinematics (LTS 2026 Geometries)](https://forums.ipg-automotive.com/t/bushing-coordinate-mismatch-in-kinematics-lts-2026-geometries/2061)
**Author:** [@fcm.user\_26](https://forums.ipg-automotive.com/u/fcm.user_26)\ **Replies:** 1\ **Last updated:** [23 April 2026 13:05 UTC](https://forums.ipg-automotive.com/t/bushing-coordinate-mismatch-in-kinematics-lts-2026-geometries/2061 "2026-04-23T13:05:47Z")
Hi, I’m new to Carmaker and have run into some errors that I’d like some help with. I was running IPGKinematics on the rear suspension geometries provided for the LTS 2026 competition and noticed a consistent warning du… --- ## [Reference Manual Steering Axis](https://forums.ipg-automotive.com/t/reference-manual-steering-axis/2048)
**Author:** [@moraveji](https://forums.ipg-automotive.com/u/moraveji)\ **Replies:** 2\ **Last updated:** [18 March 2026 15:19 UTC](https://forums.ipg-automotive.com/t/reference-manual-steering-axis/2048 "2026-03-18T15:19:20Z")
This is an edited version of my post from yesterday. I have trouble with understanding (EQ 84) of the reference manual (version 13). What is the meaning of power 2 in the denominator? How to calculate the numerator to… --- ## [Suspension knc error with skc file](https://forums.ipg-automotive.com/t/suspension-knc-error-with-skc-file/695)
**Author:** [@Sam.123](https://forums.ipg-automotive.com/u/Sam.123)\ **Replies:** 9\ **Last updated:** [12 February 2026 13:18 UTC](https://forums.ipg-automotive.com/t/suspension-knc-error-with-skc-file/695 "2026-02-12T13:18:11Z")
Hi, I was trying to import my own car parameters but when I import the skc file from IPG kinematics, I keep on getting the Suspension knc error. As per my observation I think it would be related to the co- ordinate syst… --- ## [Skc File Error for Double Wishbone Rear Suspension](https://forums.ipg-automotive.com/t/skc-file-error-for-double-wishbone-rear-suspension/2022)
**Author:** [@fcm.user\_26](https://forums.ipg-automotive.com/u/fcm.user_26)\ **Replies:** 1\ **Last updated:** [6 February 2026 21:03 UTC](https://forums.ipg-automotive.com/t/skc-file-error-for-double-wishbone-rear-suspension/2022 "2026-02-06T21:03:12Z")
Hello, I tried to run the rear suspension that i created in IPGKinematics, but I have the following errors that I cannot understand and fix. Here my skc file in case it is needed. Angelos\_querlenker\_kin1d\_rear.skc (65… --- ## [SKC file Rear suspension - File not readed at Carmaker](https://forums.ipg-automotive.com/t/skc-file-rear-suspension-file-not-readed-at-carmaker/1769)
**Author:** [@Hugo](https://forums.ipg-automotive.com/u/Hugo)\ **Replies:** 4\ **Last updated:** [5 February 2026 18:11 UTC](https://forums.ipg-automotive.com/t/skc-file-rear-suspension-file-not-readed-at-carmaker/1769 "2026-02-05T18:11:53Z")
I tried to put the values the file of the IPG kinematics (skc) file at Carmaker, the problem is that this error is showing all the time. I tried to change some values at the rear. if it tis required I can share the f… --- ## [How to make a model of a Direct Front Suspension](https://forums.ipg-automotive.com/t/how-to-make-a-model-of-a-direct-front-suspension/2023)
**Author:** [@fcm.user\_26](https://forums.ipg-automotive.com/u/fcm.user_26)\ **Replies:** 0\ **Last updated:** [2 February 2026 23:55 UTC](https://forums.ipg-automotive.com/t/how-to-make-a-model-of-a-direct-front-suspension/2023 "2026-02-02T23:55:21Z")
Hello, I tried to create a Direct Front Suspension in IPGKinematics. To give some context, this suspension model has no rockers and no torsion bar(Anti-roll bar). So a lot of the Coordinates in Geometry do not exist (ev… --- ## [How do I put my suspension from IPGKinematics in my vehicle model?](https://forums.ipg-automotive.com/t/how-do-i-put-my-suspension-from-ipgkinematics-in-my-vehicle-model/2018)
**Author:** [@fcm.user\_26](https://forums.ipg-automotive.com/u/fcm.user_26)\ **Replies:** 0\ **Last updated:** [30 January 2026 18:33 UTC](https://forums.ipg-automotive.com/t/how-do-i-put-my-suspension-from-ipgkinematics-in-my-vehicle-model/2018 "2026-01-30T18:33:17Z")
Hello, I have created an .kin file in IPGKinematics for my DoubleWishbone Rear Suspension, but I cannot understand how can I run it in my vehicle model (Parameters\>Suspensions\>Kinematics). Should I make an skc file? How… --- ## [Tire Contact Point Modification applicability](https://forums.ipg-automotive.com/t/tire-contact-point-modification-applicability/1221)
**Author:** [@Sean](https://forums.ipg-automotive.com/u/Sean)\ **Replies:** 1\ **Last updated:** [4 December 2025 12:21 UTC](https://forums.ipg-automotive.com/t/tire-contact-point-modification-applicability/1221 "2025-12-04T12:21:53Z")
We have a Tire Contact Point modification model, implemented as an FMU and applied to the tire model with the line: TireCPMod.Kind = MyModelContactPatch 1 Most of the time the FMU updates the tire contact point as expe… --- ## [Roll angle too high (-80.04 deg)](https://forums.ipg-automotive.com/t/roll-angle-too-high-80-04-deg/1977)
**Author:** [@Candrnk\_Rennteam](https://forums.ipg-automotive.com/u/Candrnk_Rennteam)\ **Replies:** 4\ **Last updated:** [26 November 2025 19:14 UTC](https://forums.ipg-automotive.com/t/roll-angle-too-high-80-04-deg/1977 "2025-11-26T19:14:37Z")
Hi IPG Team, I am working on recreating our FSE AWD car from last season in CarMaker 14.1.1. We previously used versions 10–12, but the model was not fully complete. Because of this, I started rebuilding the car based o… --- ## [Drag Reduction System (DRS)](https://forums.ipg-automotive.com/t/drag-reduction-system-drs/1966)
**Author:** [@Angelos](https://forums.ipg-automotive.com/u/Angelos)\ **Replies:** 2\ **Last updated:** [13 October 2025 19:39 UTC](https://forums.ipg-automotive.com/t/drag-reduction-system-drs/1966 "2025-10-13T19:39:37Z")
Hello, I have been trying to replicate my Formula Student car and I would like to ask if there is a way to make a Drag Reduction System (DRS).For those who do not know, this system opens the flaps at the rear wing at th… --- ## [Problem with IPGKinematics](https://forums.ipg-automotive.com/t/problem-with-ipgkinematics/1797)
**Author:** [@Angelos](https://forums.ipg-automotive.com/u/Angelos)\ **Replies:** 4\ **Last updated:** [3 October 2025 16:09 UTC](https://forums.ipg-automotive.com/t/problem-with-ipgkinematics/1797 "2025-10-03T16:09:23Z")
Hi, For some reason I cannot install the IPGKinematics. I have downloaded the zip from the Extras, I unzip it and then I open the installer.When I click on it but nothing happens. I don 't have any other problem with th… --- ## [TorqueVectoring 2 motors with C code](https://forums.ipg-automotive.com/t/torquevectoring-2-motors-with-c-code/1799)
**Author:** [@Angelos](https://forums.ipg-automotive.com/u/Angelos)\ **Replies:** 4\ **Last updated:** [3 October 2025 16:06 UTC](https://forums.ipg-automotive.com/t/torquevectoring-2-motors-with-c-code/1799 "2025-10-03T16:06:35Z")
Hello, I try to make a C code that makes Torque Vectoring (sending different torque at each motor) for 2 electric motors,but I have two problems. Firstly I cannot find where I used attach the code. I have read in the h… --- ## [Decoupled Suspension in IPG Kinematics - Formula Student](https://forums.ipg-automotive.com/t/decoupled-suspension-in-ipg-kinematics-formula-student/1963)
**Author:** [@griffondevil](https://forums.ipg-automotive.com/u/griffondevil)\ **Replies:** 0\ **Last updated:** [19 September 2025 20:03 UTC](https://forums.ipg-automotive.com/t/decoupled-suspension-in-ipg-kinematics-formula-student/1963 "2025-09-19T20:03:17Z")
Hi! I have been trying to replicate my Formula Student vehicle’s decoupled suspension. I see there’s no direct model integrated into IPG Kinematics for this. For now, I’ve modeled the heave system and performed calculat… --- ## [Issues with kinematic model](https://forums.ipg-automotive.com/t/issues-with-kinematic-model/1951)
**Author:** [@Klay](https://forums.ipg-automotive.com/u/Klay)\ **Replies:** 1\ **Last updated:** [15 September 2025 08:36 UTC](https://forums.ipg-automotive.com/t/issues-with-kinematic-model/1951 "2025-09-15T08:36:59Z")
Hello guys, I’ve been trying to generate skc files for our kinematics based on our co-ordinates, I managed to generate a file which has the correct behaviour based on graphical analysis, but when I input it into my model… --- ## [IPGKinematics - Double Wishbone Suspension Inconsistent Graphs](https://forums.ipg-automotive.com/t/ipgkinematics-double-wishbone-suspension-inconsistent-graphs/1919)
**Author:** [@metincandan](https://forums.ipg-automotive.com/u/metincandan)\ **Replies:** 2\ **Last updated:** [29 July 2025 12:14 UTC](https://forums.ipg-automotive.com/t/ipgkinematics-double-wishbone-suspension-inconsistent-graphs/1919 "2025-07-29T12:14:33Z")
Hello everyone, As a formula student team, we started to use IPG Carmaker & IPG Kinematics and aim to make a lap time simulation. We use FS\_race templates and FSE\_RearWheelDrive car. We implenmented to our car by changi… --- ## [Driver and Driver adpatation](https://forums.ipg-automotive.com/t/driver-and-driver-adpatation/1829)
**Author:** [@grams](https://forums.ipg-automotive.com/u/grams)\ **Replies:** 3\ **Last updated:** [23 May 2025 10:09 UTC](https://forums.ipg-automotive.com/t/driver-and-driver-adpatation/1829 "2025-05-23T10:09:11Z")
Hi, i have been doing some sims on lap times to evaluate our car, came back to the simple top speed and 75 m acceleration style to reavaluate and found something strange, when analysing the top speed (FS type car) e… --- ## [Vehicle data set powertrain control axle split model error](https://forums.ipg-automotive.com/t/vehicle-data-set-powertrain-control-axle-split-model-error/1808)
**Author:** [@agun](https://forums.ipg-automotive.com/u/agun)\ **Replies:** 1\ **Last updated:** [14 May 2025 08:34 UTC](https://forums.ipg-automotive.com/t/vehicle-data-set-powertrain-control-axle-split-model-error/1808 "2025-05-14T08:34:53Z")
I tried to change my powertrain model from conventional to axle split hybrid but when i try to start the simulation this error occurs. What causes the error to occur and how to fix it? thank you --- ## [Issue with road sensor in generic\_uservehicle (CM4SL)](https://forums.ipg-automotive.com/t/issue-with-road-sensor-in-generic-uservehicle-cm4sl/1734)
**Author:** [@Fabi](https://forums.ipg-automotive.com/u/Fabi)\ **Replies:** 0\ **Last updated:** [20 March 2025 23:40 UTC](https://forums.ipg-automotive.com/t/issue-with-road-sensor-in-generic-uservehicle-cm4sl/1734 "2025-03-20T23:40:18Z")
Hello, Some time ago I integrated my own two-track model in CM4SL in the generic\_uservehicle in order to run a driving simulator with it. Everything is already working wonderfully. The product example “SingleTrack model… --- ## [Suspension KnC not increasing monotonously](https://forums.ipg-automotive.com/t/suspension-knc-not-increasing-monotonously/1726)
**Author:** [@grams](https://forums.ipg-automotive.com/u/grams)\ **Replies:** 2\ **Last updated:** [18 March 2025 20:06 UTC](https://forums.ipg-automotive.com/t/suspension-knc-not-increasing-monotonously/1726 "2025-03-18T20:06:09Z")
I have been developing the suspension for my car and this error occours, could it be a geometrical problem in the software or a design problem? Any input would be appreciated --- ## [LiDAR error in CM4SL implementation](https://forums.ipg-automotive.com/t/lidar-error-in-cm4sl-implementation/1682)
**Author:** [@MFEdriverless](https://forums.ipg-automotive.com/u/MFEdriverless)\ **Replies:** 1\ **Last updated:** [14 March 2025 14:41 UTC](https://forums.ipg-automotive.com/t/lidar-error-in-cm4sl-implementation/1682 "2025-03-14T14:41:29Z")
Hello! I’m adding the LiDAR RSI and Camera RSI sensors to our car model. However, when I start our simulation in IPG movie, the LiDAR experiences an error and I’m unable to view a pointcloud when opening a preview in the… --- ## [How reliable is CarMaker for tire grip and friction testing?](https://forums.ipg-automotive.com/t/how-reliable-is-carmaker-for-tire-grip-and-friction-testing/1697)
**Author:** [@azzouguen](https://forums.ipg-automotive.com/u/azzouguen)\ **Replies:** 0\ **Last updated:** [6 March 2025 09:06 UTC](https://forums.ipg-automotive.com/t/how-reliable-is-carmaker-for-tire-grip-and-friction-testing/1697 "2025-03-06T09:06:09Z")
Hello everyone, I am new to CarMaker and I am currently invistigating the following topics: How reliable is CarMaker’s friction model for accurately simulating tire-road interaction? Has anyone validated CarMaker’s gr… --- ## [3D model integration](https://forums.ipg-automotive.com/t/3d-model-integration/1657)
**Author:** [@VehicleDynamicist](https://forums.ipg-automotive.com/u/VehicleDynamicist)\ **Replies:** 1\ **Last updated:** [5 March 2025 11:05 UTC](https://forums.ipg-automotive.com/t/3d-model-integration/1657 "2025-03-05T11:05:07Z")
How to integrate 3D model of a car in library into your custom vehicle model. this information wrtiten in the IPGmovie.pdf but it dows not work. I need to translate 3D model with respect to front and rear axle position… --- ## [Can you run 2 LiDAR sensors on one LidarRSI cluster](https://forums.ipg-automotive.com/t/can-you-run-2-lidar-sensors-on-one-lidarrsi-cluster/1660)
**Author:** [@IJordano478](https://forums.ipg-automotive.com/u/IJordano478)\ **Replies:** 0\ **Last updated:** [21 February 2025 11:54 UTC](https://forums.ipg-automotive.com/t/can-you-run-2-lidar-sensors-on-one-lidarrsi-cluster/1660 "2025-02-21T11:54:15Z")
Is it possible to run 2 Lidar sensors on the same LidarRSI sensor cluster, similar to one of the user examples given in which you would have a front and back Lidar, but in our application we are comparing detections for … --- ## [LiDAR errors on Formula CarMaker](https://forums.ipg-automotive.com/t/lidar-errors-on-formula-carmaker/1568)
**Author:** [@IJordano478](https://forums.ipg-automotive.com/u/IJordano478)\ **Replies:** 6\ **Last updated:** [20 February 2025 10:34 UTC](https://forums.ipg-automotive.com/t/lidar-errors-on-formula-carmaker/1568 "2025-02-20T10:34:01Z")
I’m having issues enabling the LiDAR for the provided CarMaker FS autonomous package. I’m using CarMaker 13.0.1 on Ubuntu 22.04, with an NVIDIA GeForce GTX 1660 Ti, however the same issue is noted on other systems within… --- ## [Error in inputing skc file in CarMaker " Invalid command name "IFile" "](https://forums.ipg-automotive.com/t/error-in-inputing-skc-file-in-carmaker-invalid-command-name-ifile/1184)
**Author:** [@agun](https://forums.ipg-automotive.com/u/agun)\ **Replies:** 6\ **Last updated:** [15 January 2025 16:05 UTC](https://forums.ipg-automotive.com/t/error-in-inputing-skc-file-in-carmaker-invalid-command-name-ifile/1184 "2025-01-15T16:05:01Z")
Hello, I was trying to input our kinematics design into Car Maker using SKC file from ipg Kinematics. I’m successful in creating the SKC file, when I tried to open the model in from the kinematics tab in the vehicle dat… [Next page](https://forums.ipg-automotive.com/c/vehicle-modelling/12.md?page=1)