Developing a Solution to Utilize Vehicle Dynamics Simulation Tools with a Motion Driving Simulator
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Typ
Projektarbete, avancerad nivå
Program
Publicerad
2021
Författare
Madhava Prakash, Ajit Kumar
Garje Mohankumar, Anup
Misquith, Clive Rahul
Ganatra, Diler Paresh
Soudagar, Irfan Ahmed Khan
Johnsson, Jonas
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
The project develops a method to integrate a CAE software (IPG CarMaker) vehicle
model into the CASTER driving simulator. The vehicle dynamics performance is
assessed by comparing CarMaker (CM) simulation data against the driving simulator
data. First, a baseline generic passenger SUV was modeled on CM with K&C
parameters that resemble a real-world vehicle. Then, the driving scenarios and maneuvers
such as steady state cornering [6] and double lane change [5] were modeled
on CM. Alongside this, IPG Movie and CM for Simulink were used to create real
driving scenarios with accurate driving views. Next, the baseline vehicle was simulated
in CM and driven on the simulator for both maneuvers. Driver input signals
from the driving simulator were fed into CM through CM for Simulink to run the
physics of the vehicle model. The output signals computed by CM were fed to the
driving simulator to provide motion, audio and visual cues. The integration tool was
developed to introduce it in the early phase of vehicle development. The software
simulation provides good objective data but no subjective assessment. The use of
DIL-simulator is a good method to add subjective assessment in vehicle dynamics
development. After every maneuver run, driver’s subjective assessment and rating
was recorded. A statistical and graphical comparison of objective data between CM
simulation and driving simulator drivers. Analysis of this data showed there is good
correlation between results from CM simulations and the driving simulator. Then,
vehicle parameter variations were made to understand the vehicle dynamics performance
objectively and subjectively. For each model variation, a CM simulation and
driving simulator test was carried out by multiple drivers. The vehicle specification
variations were designed to produce changes in the steering feel and controllability.
This indicates that the driving simulator is a viable supplement to prototype testing,
however, further studies must be made to validate the preliminary conclusion. In
reality, vehicle evaluations are performed by highly skilled test drivers with accurate
subjective assessments. The project yields a tool to develop and evaluate the vehicle
dynamics performance. In the hands of a professional driver, this will produce good
subjective assessment that ties in with the objective metrics, thus validating it’s use
as a cost effective and time efficient tool to develop vehicles.
Beskrivning
Ämne/nyckelord
Vehicle Dynamics , CarMaker , Simulink , Simulator , DIL , vehicle testing , subjective assessment , objective metrics , steady state cornering , double lane change , motion platform