scholarly journals The Diagnosing of Vehicle Steering System by Video Recording Method

2021 ◽  
Vol 334 ◽  
pp. 02018
Author(s):  
Fedor Smolenkov ◽  
Igor Blyankinshtein
Keyword(s):  
Video Processing ◽  
Motor Vehicle ◽  
Video Recording ◽  
Steering System ◽  
Steering Wheel ◽  
Test Results ◽  
Front Suspension ◽  
System Diagnosis ◽  
Video Registration ◽  
Recording Method

The possibility of vehicle steering system diagnosis based on analysis and visualization data processing is considered. The video recording method for the diagnostic troubleshooting of steering system and front suspension group is proposed. The method provides for placement of the motor vehicle on the diagnostic station, with further webcamera installation for measuring the steering wheel rotation angle and clear contract marking on the steering joint under experiment, setting the webcamera to fix and record the beginning of the movement steering joint under experiment, the video registration of the steering test results and further video processing using dedicated software. The outcomes of the evaluation of the method is delivered.

scholarly journals Influence of Clearance on the Rocker Arm Pin on the Steerability and Stability of the Vehicle Motion

Energies ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7827
Author(s):  
Krzysztof Parczewski ◽  
Henryk Wnęk
Keyword(s):  
Response Time ◽  
Road Traffic ◽  
Steering System ◽  
Steering Wheel ◽  
Test Results ◽  
Bench Tests ◽  
Front Suspension ◽  
Class B ◽  
Vehicle Motion ◽  
The Impact

The article presents an analysis of the impact of a malfunction resulting from excessive clearance on the rocker arm pin of the front suspension on the vehicle’s steerability. The first part of the article presents an analysis of the influence of the clearance on the rocker arm pin on the geometry of the suspension and steering system. The occurrence of forces acting on the rocker arm pin in various phases of the vehicle motion was analyzed. To assess the vehicle’s steering, the vehicle’s response time to sudden steering wheel movement was used. The vehicle’s response time to sudden movement of the steering wheel was used to assess the vehicle’s steerability. The second part presents the results of bench tests and traction tests of a vehicle equipped with a specially made measuring rocker arm with the possibility of simulating a clearance. The tests were carried out on a class B passenger car in selected road tests. The results of measurements obtained for the roadworthy vehicle and the vehicle with the rocker arm with clearance were compared. The influence of the clearance on the rocker arm pin on the change of vehicle steerability in steady and dynamically changing conditions was analyzed. The test results show the effect of clearance on vehicle steering and on the vehicle steerability. The study tried to determine to what extent the clearance on the rocker arm affects the vehicle’s steerability and thus the safety in road traffic.

scholarly journals Design and Optimization of Suspension and Steering System of Efficycle – Human Powered Hybrid Tricycle

2020 ◽  
Vol 5 (1) ◽  
pp. 64-79
Author(s):  
Mishank Sharma ◽  
◽  
Rakesh Chander Saini ◽  
Ramakant Rana
Keyword(s):  
Steering System ◽  
Front Wheel ◽  
Suspension System ◽  
Steering Wheel ◽  
Front Suspension ◽  
Design And Optimization ◽  
Shock Absorbers ◽  
Body Roll ◽  
Free Body ◽  
Drag Link

Suspension is a system of tires, springs, shock absorbers, and linkages that connects a vehicle’s chassis to its wheels and allows relative motion between the two. Steering is a mechanism that provides a direction to the vehicle, it basically consists of gears, shaft, joints, steering column, steering wheel, and furthermore. The main objective of this paper is to design a system of suspension and steering for a three-wheeled human-electric hybrid trike. A system of directly actuated double wishbone suspension system is chosen for the front and a pushrod actuated 2-link trailing arm suspension system for the rear. The steering system used is a type of Single tie rod and drag link system. A knuckle-to-knuckle drag link provides continuity to the wheels and a tie rod to the bell crank provides steering rotation. This paper also talks about the single nut hub-shaft system which is being used in the front suspension system. Based on the research using various input parameters, the inboard and outboard suspension hardpoints are decided to maximize the tire contact patch at every vehicular motion (mainly during body roll). Forces and stresses are calculated with the help of Free Body Diagrams (FBD) and Multi-Body Dynamics (MBD) software LOTUS Shark. The paper discusses the calculations regarding the roll and ride rates and for the custom springs of specific stiffness used in front and rear shock absorbers and the variation of roll steer and bump steer on changing various parameters of the steering system. Key points also include the procedure of selections of various types of bearings, rod ends, and bolts. This paper also talks about laser-cut jigsaw uprights that are used in the front wheel assembly. The finite element method was used to analyze the designs using DS Solidworks and Ansys Workbench. Static structural and explicit dynamics analysis was performed on the wheel assembly components both individually and assembled

scholarly journals Integrated Design of a Custom Steering System in Cars and Verification of Its Correct Functioning

Energies ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6740
Author(s):  
Włodzimierz Choromański ◽  
Iwona Grabarek ◽  
Maciej Kozłowski
Keyword(s):  
Motor Vehicle ◽  
Integrated Design ◽  
Steering System ◽  
Steering Wheel ◽  
Custom Design ◽  
Dynamic Simulator ◽  
The Subject ◽  
Special Approach ◽  
The Impact ◽  
Individual Adjustment

The subject of this article is the design of a nonstandard steering system in cars. The applied methodology takes into account universal design, ensuring the greatest possible adaptation of the steering system to potential users, and at the same time, thanks to the specific nature of the designed steering device, it also assumes a special approach allowing for individual adjustment of the steering system to the needs and limitations of drivers with lower-limb disabilities. It is implemented through the “custom design” methodology. This article presents the impact of the design features of the multifunction steering wheel on the correctness of driving, as well as the level of load on selected muscles of the upper limbs responsible for operating the steering wheel. The tests were carried out on a dynamic simulator of a motor vehicle using the electromyography (EMG) technique, which enables the measurement of muscle load. A systemic approach to training and verifying the skills of drivers using new HMI solutions is proposed.

Design, analysis of steering system and front suspension for an Electric All-Terrain vehicle

2021 ◽  
Author(s):  
Mohan Poojari ◽  
B.S. Shreyas ◽  
Ruben Muddaiah ◽  
Ananth Raj ◽  
Bharatheesh S Babu
Keyword(s):  
Steering System ◽  
Design Analysis ◽  
Front Suspension

Airbag Inflators

1999 ◽  
Author(s):  
William G. Broadhead ◽  
D. Theodore Zinke
Keyword(s):  
High Speed ◽  
Motor Vehicle ◽  
Seat Belt ◽  
Design Parameters ◽  
Steering Wheel ◽  
Instrument Panel ◽  
Highway Traffic ◽  
National Highway Traffic Safety ◽  
Column Collapse ◽  
Wide Range

Abstract The design of an airbag restraint system presents a classic engineering challenge. There are numerous design parameters that need to be optimized to cover the wide range of occupant sizes, occupant positions and vehicle collision modes. Some of the major parameters that affect airbag performance include, the airbag inflator characteristics, airbag size and shape, airbag vent size, steering column collapse characteristics, airbag cover characteristics, airbag fold pattern, knee bolsters, seat, seat belt characteristics, and vehicle crush characteristics. Optimization of these parameters can involve extremely costly programs of sled tests and full scale vehicle crash tests. Federal Motor Vehicle Safety Standards (FMVSS) with regard to airbag design are not specific and allow flexibility in component characteristics. One design strategy, which is simplistic and inexpensive, is to utilize a very fast, high output gas generator (inflator). This ensures that the bag will begin restraining the occupant soon after deployment and can make up for deficiencies in other components such as inadequate steering column collapse or an unusually stiff vehicle crush characteristic. The use of such inflators generally works well for properly positioned occupants in moderate to high-speed frontal collisions by taking advantage of the principle of ridedown. When an airbag quickly fills the gap between the occupant and the instrument panel or steering wheel it links him to the vehicle such that he utilizes the vehicle’s front-end crush to help dissipate his energy, thus reducing the restraint forces. Unfortunately, powerful airbag systems can be injurious to anyone in the path of the deploying airbag. This hazard is present for short statured individuals, out of position children or any occupant in a collision that results in extra ordinary crash sensing time. Currently, the National Highway Traffic Safety Administration (NHTSA) is proposing to rewrite FMVSS 208 to help reduce such hazards.

Study and Simulation on Truck Front Suspension Using ADAMS

2013 ◽  
Vol 433-435 ◽  
pp. 2235-2238
Author(s):  
Wei Ning Bao
Keyword(s):  
System Dynamics ◽  
Mechanical System ◽  
Steering System ◽  
Front Wheel ◽  
System Model ◽  
Simulation Test ◽  
Front Suspension ◽  
Body Dynamics ◽  
Wheel Alignment ◽  
Multi Body

The mechanical system dynamics software,ADAMS,is used to establish multi-body dynamics system model for a truck front suspension and steering system. Through the simulation test of wheel travel, front wheel alignment parameters changing along with the wheel travel was obtained.

scholarly journals METHOD OF NATURAL MODELING WHILE PERFORMING COMPREHENSIVE FORENSIC MEDICAL, TRANSPORT TRACE EVIDENCE AND AUTO-TECHNICAL EXAMINATION

2018 ◽  
Vol 18 ◽  
pp. 585-592
Author(s):  
O. V. Saushkin ◽  
A. A. Khaniants ◽  
A. G. Bondareva ◽  
S. V. Sulim
Keyword(s):  
Traffic Accident ◽  
Motor Vehicle ◽  
Causal Link ◽  
Steering Wheel ◽  
Trace Evidence ◽  
Human Contact ◽  
Decisive Importance ◽  
Technical Examination ◽  
Medical Transport ◽  
Mental Modeling

The article points to the importance of applying the method of natural modeling as one of the key methods in carrying out comprehensive forensic medical, transport trace evidence and auto-technical examinations. This method give an opportunity identifying a person who was behind steering wheel of the vehicle during a traffic accident in case of intervention in motor vehicle driving by another person: the driver, determining his location in the cabin; identifying the pedestrian's location regarding traumatic elements of the vehicle; determining person location at the time of the traffic accident: on a bicycle or as a pedestrian, led a bicycle nearby. The mentioned method also allows verifying testimonies of traffic accident participants and excludes farfetched options for its development in future. The importance of the method lies in the ability to accurately simulate (reproduce) the mechanism of a traffic accident regarding reciprocal contact of vehicles, with other objects and a person. Advantage of the method of natural modeling over the method of mental modeling which is more widespread while performing comprehensive forensic medical, transport trace evidence examinations is the opportunity to confirm or disprove versions of previous expert versions and reduce their number to a minimum that means in most cases to one. It allows coming to categorical conclusions about the mechanism of human contact with vehicle elements and is of decisive importance while solving by autotechnician experts issues on the establishment of a causal link between the actions of traffic accident participants and the requirements of Traffic Сode of Ukraine.

scholarly journals Electronic Control System for Steer by Wire

2021 ◽  
Vol 9 (VI) ◽  
pp. 4161-4166
Author(s):  
Eeshan Ranade
Keyword(s):  
Electric Power ◽  
Engine Performance ◽  
Steering System ◽  
Electric Power System ◽  
Driving Safety ◽  
Steering Wheel ◽  
Hydraulic Systems ◽  
Compact Structure ◽  
Steer By Wire ◽  
Improved Performance

Automobile industry’s focus is on efficiency, safety and performance has resulted in the rapid introduction of electronics in vehicle safety systems and engine management. Mechanical and Hydraulic systems are now gradually being replaced by electronic controllers to achieve the objectives of optimizing power consumption, improving driver convenience, and maximizing driver safety resulting in an overall improved performance and experience. Vehicle steering systems have transitioned from mechanical to hydraulic power to an electric power assisted steering system and now to the state of the art, Steer by Wire (SbW) system. Traditional mechanical systems included a steering wheel, column, gear, rack and pinion and did not support any power steering. The next generation hydraulic systems were more stable, safer and required comparatively lesser effort. Electric or DC motors drove the Electric Power System addressing the drawbacks of the hydraulic systems especially those related to environment and acoustics with the added advantage of a compact structure and power-on-demand engine performance. By-wire steering technologies was originally introduced in the Concord aircraft in 1970s. The SbW is a steering system with no steering column. The mechanical interface between the steering wheel and the wheels is replaced with by-wire electrical connection/electronic actuators. SbW system has significant advantages in terms of driving safety due to the availability of the steering command in electronic form and the removal of the steering shaft, cruising comfort with driving manoeuvring due to no space constraint and favourable to the environment with the non-usage of hydraulic oils.

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