The influence of a vehicle dynamics control system on the occupant’s dynamic response during a vehicle collision

This paper aims to improve vehicle crashworthiness using vehicle dynamics control systems (VDCS) integrated with an extendable front-end structure (extendable bumper). The work carried out in this paper includes developing and analyzing a new vehicle dynamics/crash mathematical model and a multi-body occupant mathematical model in case of vehicle-to-vehicle full frontal impact. The first model integrates a vehicle dynamics model with the vehicle’s front-end structure to define the vehicle body crash kinematic parameters. In this model, the anti-lock braking system (ABS) and the active suspension control system (ASC) are co-simulated, and its associated equations of motion are developed and solved numerically. The second model is used to capture the occupant kinematics during full frontal collision. The simulations show considerable improvements using VDCS with and without the extendable bumper (EB), which produces additional significant improvements for both vehicle body acceleration and intrusion.

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Multi-Body Integrated Vehicle-Occupant Models for Collision Mitigation and Vehicle Safety using Dynamics Control Systems

International Journal of System Dynamics Applications ◽

10.4018/ijsda.2016040105 ◽

2016 ◽

Vol 5 (2) ◽

pp. 80-122 ◽

Cited By ~ 2

Author(s):

Mustafa Elkady ◽

Ahmed Elmarakbi ◽

John MacIntyre ◽

Mohamed Alhariri

Keyword(s):

Control Systems ◽

Vehicle Dynamics ◽

Vehicle Body ◽

Occupant Behaviour ◽

Lumped Mass ◽

Vehicle Collision ◽

Kinematic Behaviour ◽

Collision Mitigation ◽

Multi Body ◽

Vehicle Dynamics Control

The aim of this paper is to investigate the effect of vehicle dynamics control systems (VDCS) on both the collision of the vehicle body and the kinematic behaviour of the vehicle's occupant in case of offset frontal vehicle-to-vehicle collision. A unique 6-Degree-of-Freedom (6-DOF) vehicle dynamics/crash mathematical model and a simplified lumped mass occupant model are developed. The first model is used to define the vehicle body crash parameters and it integrates a vehicle dynamics model with a vehicle front-end structure model. The second model aims to predict the effect of VDCS on the kinematics of the occupant. It is shown from the numerical simulations that the vehicle dynamics/crash response and occupant behaviour can be captured and analysed quickly and accurately. Furthermore, it is shown that the VDCS can affect the crash characteristics positively and the occupant behaviour is improved.

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New Integrated Vehicle Dynamics Control System Based on the Coordination of Active Front Steering, Direct Yaw Control, and Electric Differential for Improvements in Vehicle Handling and Stability

SAE International Journal of Vehicle Dynamics Stability and NVH ◽

10.4271/10-04-02-0009 ◽

2020 ◽

Vol 4 (2) ◽

pp. 119-133

Author(s):

Norediene Aouadj ◽

Kada Hartani ◽

Mekri Fatiha

Keyword(s):

Control System ◽

Vehicle Dynamics ◽

Vehicle Handling ◽

Yaw Control ◽

Active Front Steering ◽

Vehicle Dynamics Control

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Development of a Vehicle Dynamics Control System for Four In-Wheel Motor EV

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.427-429.1346 ◽

2013 ◽

Vol 427-429 ◽

pp. 1346-1349 ◽

Cited By ~ 1

Author(s):

Lu Xiong ◽

Fen Miao Shi ◽

Shen Lin Hu ◽

Yuan Feng

Keyword(s):

Control System ◽

Vehicle Dynamics ◽

Reference Value ◽

Operating Conditions ◽

Lateral Acceleration ◽

Critical Conditions ◽

Normal Operating ◽

Physical Limit ◽

Acceleration Feedback ◽

Vehicle Dynamics Control

This paper describes the design of a vehicle dynamics control system for improving handling and stability of electric vehicle. A vehicle with this control system can facilitate good handling performance under normal operating conditions and enhance stability under critical conditions. A feedforward and a feedback controllers are employed to make the vehicle follow the reference yaw rate based on a non-linear 5DOF vehicle model under normal operating conditions. When the tire tends to reach physical limit, the reference value will be modified with lateral acceleration feedback. Finally, simulation is conducted under several standard maneuvers and the results verify the effectiveness of the proposed control system.

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Vehicle Stabilization by the Vehicle Dynamics Control System ESP

IFAC Proceedings Volumes ◽

10.1016/s1474-6670(17)39127-9 ◽

2000 ◽

Vol 33 (26) ◽

pp. 95-102 ◽

Cited By ~ 5

Author(s):

A.T. van Zanten ◽

R. Erhardt ◽

K. Landesfeind ◽

G. Pfaff

Keyword(s):

Control System ◽

Vehicle Dynamics ◽

Vehicle Dynamics Control

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Study on High-Speed Lateral Stability of Car-Trailer Combination

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.29-32.1420 ◽

2010 ◽

Vol 29-32 ◽

pp. 1420-1424

Author(s):

Shu Wen Zhou ◽

Si Qi Zhang ◽

Guang Yao Zhao

Keyword(s):

Control System ◽

Vehicle Dynamics ◽

High Speed ◽

Dynamics Simulation ◽

Lateral Stability ◽

Body Model ◽

Yaw Rate ◽

Articulated Vehicles ◽

Multi Body ◽

Vehicle Dynamics Control

Since the handling behaviour of car-trailer combination is more complex and less predictable than that of non-articulated vehicles, the drivers may lose control of the vehicle in some hasty steering maneuvers. The kinematics of car-trailer combination has been analyzed with a 3 DOF model. A modified Vehicle Dynamics Control system was designed to improve the lateral stability of the trailer. The dynamics simulation for lateral stability of car-trailer combination has been performed on the multi-body model. The results show that the lateral stability of car-trailer combination, including yaw rate and roll angle has been improved with the modified Vehicle Dynamics Control system.

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