Reduction of Steering Effort in the Event of EPAS Failure using Differential Braking Assisted Steering

All-terrain cranes with multi-axles have large inertia and long distances between the axles that lead to a slower dynamic response than normal vehicles. This has a significant effect on the dynamic behavior and steering performance of the crane. Therefore, the purpose of this study is to develop an optimal steering control algorithm with a reduced driver steering effort for an all-terrain crane and to evaluate the performance of the algorithm. For this, a model predictive control technique was applied to an all-terrain crane, and a steering control algorithm for the crane was proposed that could reduce the driver’s steering effort. The steering performances of the existing steering system and the steering system applied with the newly developed algorithm were compared using MATLAB/Simulink and ADAMS with a human driver model for reasonable performance evaluation. The simulation was performed with both a double lane change scenario and a curved-path scenario that are expected to happen in road-steering mode.

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Active Front Steering Damping Control

Volume 16: Transportation Systems ◽

10.1115/imece2007-42858 ◽

2007 ◽

Author(s):

William C. Lin ◽

Shih-Ken Chen

Keyword(s):

Angular Displacement ◽

Fine Tuning ◽

Steering Wheel ◽

Modeling And Analysis ◽

Damping Control ◽

Vehicle Operation ◽

Fundamental Relationship ◽

Loop Feedback ◽

Steering Effort ◽

Actuator Control

This paper investigates the feasibility of steering-wheel damping enhancement control of an active front steer (AFS) system without the benefit of closed-loop feedback control and actuator control parameter adjustment. Through a comprehensive modeling and analysis of the AFS system, a simple, yet effective solution is reached to incorporate an additional control term to the actuator angular displacement command, which permits the fine-tuning of the steering wheel damping characteristics as a function of vehicle operation states beyond the pre-determined specification. Furthermore, the analysis also identifies a fundamental relationship between steering effort and the damping control, and thus leads to a proposed fine tuning of the Variable-Effort Steering for further development and implementation.

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An investigation on motor-driven power steering-based crosswind disturbance compensation for the reduction of driver steering effort

Vehicle System Dynamics ◽

10.1080/00423114.2014.909941 ◽

2014 ◽

Vol 52 (7) ◽

pp. 922-947 ◽

Cited By ~ 3

Author(s):

Kyuwon Kim ◽

Boemjun Kim ◽

Youngil Go ◽

Jaeyong Park ◽

Joonhong Park ◽

...

Keyword(s):

Disturbance Compensation ◽

Power Steering ◽

Steering Effort

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Influence of Steering Axis Inclination and Scrub Radius on Steering Effort of Passenger Car

10.4271/2016-28-0177 ◽

2016 ◽

Author(s):

Sreedeep Thiyya Kkandiyil ◽

Monish M. H. Gowda ◽

Hima Kiran Venna

Keyword(s):

Passenger Car ◽

Steering Effort

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Proposal of a Steering Effort Model with Parameters of Steering Geometry

The proceedings of the JSME annual meeting ◽

10.1299/jsmemecjo.2003.7.0_363 ◽

2003 ◽

Vol 2003.7 (0) ◽

pp. 363-364

Author(s):

Taichi SHIIBA ◽

Tomonao ENOMOTO ◽

Takeshi KINUGASA ◽

Hiroshi KOBAYASHI

Keyword(s):

Steering Effort

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Study on Boosting Curve for Electric Power Steering System Based on ADAMS

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.97-101.3308 ◽

2010 ◽

Vol 97-101 ◽

pp. 3308-3313 ◽

Cited By ~ 1

Author(s):

Hao Chen ◽

Ya Li Yang ◽

Li Hua Chen

Keyword(s):

Mechanical System ◽

Electric Power ◽

Steering System ◽

Electric Power Steering ◽

Power Steering System ◽

Electric System ◽

Power Steering ◽

Straight Line ◽

Electric Power Steering System ◽

Steering Effort

Electric Power Steering (EPS) is a full electric system, which reduces the amount of steering effort by directly applying the output from an electric motor to the steering system. This research aims at developing EPS boost curve embody into the assist characteristics, improving steer portability and stability. A model for the EPS system has been established, including full vehicle mechanical system, EPS mechanical system, and EPS electric control system. Based on this model, a straight line boost curve was designed and evaluated in this environment to improve the performance of EPS system. Results showed that EPS system with the designed boost curve improved light steering feeling and increased vehicle’s steering stability, and can meet the requirements of steering performance.

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A Review Paper on Electric Assisted Steering System for Automobiles

International Journal for Modern Trends in Science and Technology - RTT2020 ◽

10.46501/ijmtst0703009 ◽

2021 ◽

Vol 7 (03) ◽

pp. 54-56

Author(s):

Prof. Nivedita, Pall Choudhury, Ashutosh Jagdale, Ravi Ghule and Simran Shaikh

Keyword(s):

Steering System ◽

Steering Wheel ◽

Electric System ◽

Human Needs ◽

Construction Design ◽

Active Steering ◽

Hydraulic Steering ◽

Steering Effort ◽

Steering Torque ◽

Electronic Elements

Electric Assisted Steering system is an Electric System, which reduces the amount of steering effort by directly applying the output from the electric motor to the steering system.In this system the mechanical link between the steering wheel and road wheels of an automobile are replaced by a control system consisting of sensors, actuators and controllers seem to offer great advantages such as enhanced system performance, simplified construction, design flexibility etc.It offers greater vehicle safety by adapting variable steering ratios to human needs, filtering drive train influences and even adjusting active steering torque in critical situations. In addition, it can make cars even lighter and more fuel efficient when compared to those using hydraulic steering systems. The central electronic elements of today’s steering systems are modern microcontrollers

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