Design and Evaluation of a Free-Hand VR-based Authoring Environment for Automated Vehicle Testing

2021 ◽  
Author(s):  
Sevinc Eroglu ◽  
Frederic Stefan ◽  
Alain Chevalier ◽  
Daniel Roettger ◽  
Daniel Zielasko ◽  
...  
Keyword(s):  
Automated Vehicle ◽  
Authoring Environment ◽  
Vehicle Testing

scholarly journals Traffic Scenarios for Automated Vehicle Testing: A Review of Description Languages and Systems

Machines ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 342
Author(s):  
Jing Ma ◽  
Xiaobo Che ◽  
Yanqiang Li ◽  
Edmund M.-K. Lai
Keyword(s):  
Automated Vehicles ◽  
Domain Specific Languages ◽  
Automated Vehicle ◽  
Domain Specific ◽  
The Past ◽  
Traffic Scenario ◽  
Description Languages ◽  
Vehicle Testing ◽  
Further Development

Testing and validation of the functionalities and safety of automated vehicles shifted from a distance-based to a scenario-based method in the past decade. A number of domain-specific languages and systems were developed to support scenario-based testing. The aim of this paper is to review and compare the features and characteristics of the major scenario description languages and systems (SDLS). Each of them is designed for different purposes and with different goals; therefore, they have their strengths and weaknesses. Their characteristics are highlighted with an example nontrivial traffic scenario that we designed. We also discuss some directions for further development and research of these SDLS.

Laboratory Tire Wear Simulation Derived from Computer Modeling of Suspension Dynamics

1991 ◽  
Vol 19 (3) ◽  
pp. 122-141 ◽  
Author(s):  
C. Wright ◽  
G. L. Pritchett ◽  
R. J. Kuster ◽  
J. D. Avouris
Keyword(s):  
Computer Modeling ◽  
Computer Model ◽  
Normal Load ◽  
Operating Environment ◽  
Design Features ◽  
Handling Characteristics ◽  
Tire Wear ◽  
Suspension Dynamics ◽  
Instrumented Vehicle ◽  
Vehicle Testing

Abstract A method for determining the effect of suspension dynamics on tire wear has been developed. Typical city cycle maneuvers are defined by instrumented vehicle testing and data in the form of forward velocities and steer angles are used as an input to an ADAMS computer model of the vehicle. A simulation of the maneuvers generates a tire's operating environment in the form of normal load, slip, and camber variations, which contain all the subtle effects of the vehicle's suspension, steering, and handling characteristics. A cyclic repetition of the tire's operating environment is constructed and used to control an MTS Flat-Trac machine. In this way, accelerated tire wear can be generated in the laboratory which is directly related to the design features of the vehicle's suspension and steering systems.

Alternate Trajectory Determination Using Multimode Automated Robotic Vehicle with Line Following and Object Following Mode

2018 ◽  
Vol 8 (3) ◽  
pp. 46
Author(s):  
Varun Kumar ◽  
Lakshya Gaur ◽  
Arvind Rehalia
Keyword(s):  
Ultrasonic Sensor ◽  
Robotic Assembly ◽  
Voltage Regulator ◽  
Automated Vehicle ◽  
Dc Motors ◽  
Arduino Uno ◽  
Robotic Vehicle ◽  
Line Following ◽  
Selection Of ◽  
Trajectory Determination

In this paper the authors have explained the development of robotic vehicle prepared by them, which operates autonomously and is not controlled by the users, except for selection of modes. The different modes of the automated vehicle are line following, object following and object avoidance with alternate trajectory determination. The complete robotic assembly is mounted on a chassis comprising of Arduino Uno, Servo motors, HC-SRO4 (Ultrasonic sensor), DC motors (Geared), L293D Motor Driver, IR proximity sensors, Voltage Regulator along with castor wheel and two normal wheels.

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