Modeling, Control, and Validation of an Electro-Hydraulic Steer-by-Wire System for Articulated Vehicle Applications

Haggag, Salem; Alstrom, D.; Cetinkunt, Sabri; Egelja, A.

doi:10.1109/tmech.2005.859838

Cited by 77 publications

(36 citation statements)

References 4 publications

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“…It can be noted that most of the research on SBW system focused on simulation works. Only a few papers reported the result of experimental works such as in Balachandran and Gerdes (2015), Haggag et al (2005), Jang et al (2003), Oncu et al (2007), Park et al (2005) and Park et al (2007). Safety is the major concern in implementing SBW system on a real vehicle.…”

Section: Introductionmentioning

confidence: 99%

Hardware-in-the-loop simulation of steer-by-wire system in automotive vehicle

Amir¹,

Samad

2016

Int. j. adv. appl. sci

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Field test approach of steer-by-wire (SBW) technologies by using actual vehicle can be very dangerous. This is due to the fact that stability of the vehicle is very sensitive to the steering wheel input. Less optimum parameters of the steering controllers or system failure may lead to dangerous road accident. In this study, hardware-in-the-loop simulation (HiLS) is used to bridge the gap between simulation and experimentation of SBW system. In the proposed HiLS system, SBW test rig is set up to communicate in real time with 14 degree-of-freedom vehicle model. Proportional-integral-derivative control optimized with Ziegler-Nichols method is used to control the stepper motor of the SBW test rig. From simulation and experimental results, SBW system developed has the ability to closely follow the steering trajectory of the conventional steering system with acceptable errors. By using HiLS, both controller algorithm and the functionality of the steering actuator of SBW system can be tested in a semireal driving condition as preliminary testing.

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Section: Introductionmentioning

confidence: 99%

Hardware-in-the-loop simulation of steer-by-wire system in automotive vehicle

Amir¹,

Samad

2016

Int. j. adv. appl. sci

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“…Another system is the pedestrian safety system, where both brakes and steering are used to avoid collisions with pedestrians, [8]. Active steering is also a prerequisite when it comes to autonomous driving, [9], or steer-by-wire-systems, [10].…”

Section: Introductionmentioning

confidence: 99%

Modeling, Simulation, and Experimental Investigation of an Electrohydraulic Closed-Center Power Steering System

Dell’Amico

Krus

2015

IEEE/ASME Trans. Mechatron.

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Abstract-In steering-related active safety systems, active steering is a key component. Active steering refers to the possibility to control the road wheel angle or the required torque to turn the wheels by means of an electronic signal. Due to the high axle loads in heavy vehicles, hydraulic power is needed to assist the driver in turning the wheels. One solution to realise active steering is then to use electronically controlled valves that are of closed-centre type. This means that the assistance pressure, or force, can be set to any feasible value and still benefit from the high power density of fluid power systems. A closed-centre solution also implies that a significant reduction in fuel consumption is possible. This paper investigates such an electrohydraulic power steering system and a comparison with the original system is also made. The findings have shown that while a high response of the pressure control loop is desired for a good steering feel, instability might occur at higher steering wheel torque levels. This has effectively been shown and explained by simulation and hardware-in-the-loop simulation, together with linear analysis. For any desired boost curve, the response of the pressure control loop must be designed to preserve stability over the entire working range.

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“…The advantages of EPS include that all the torque from the electric motor is directly transferred to turn the wheel, meaning that there is less loss [6]. It was also reported that adopting this steering system can reduce the engine load and thus reduce the fuel usage by 5 to 15% [7].…”

Section: Introductionmentioning

confidence: 99%

Ride Comfort Simulation of a Vehicle Equipped With Semi-Active Steering System

Maharun¹,

Baharom²,

Mohd³

2015

Int. J. Automot. Mech. Eng.

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This paper presents a ride comfort analysis for a vehicle equipped with a novel steering system called the Semi-Active Steering system (SAS). Current vehicle steering systems, especially in cars which are equipped with a rack and pinion steering system, cause discomfort to the driver whenever the vehicle is driven on an uneven surface or over a pot hole. The driver may feel the vibration on the steering wheel due to the mechanical linkage of the rack and pinion steering system. The unique design of SAS which omits the solid linkage and replaces it with a low stiffness resilient shaft has made it possible to reduce the discomfort felt by the driver. In this research, two vehicle models were built in vehicle simulation software; one with a normal rack and pinion steering system and the other with the SAS system. Both vehicles were simulated on a four-post suspension test rig. Vibrations and steering wheel feel were observed and compared between the two models. The results show that the vehicle with the SAS system managed to improve the comfort by reducing the amount of vibration at the steering wheel. The findings may be useful for car manufacturers to improve the ride and comfort of the vehicle.

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Modeling, Control, and Validation of an Electro-Hydraulic Steer-by-Wire System for Articulated Vehicle Applications

Cited by 77 publications

References 4 publications

Hardware-in-the-loop simulation of steer-by-wire system in automotive vehicle

Hardware-in-the-loop simulation of steer-by-wire system in automotive vehicle

Modeling, Simulation, and Experimental Investigation of an Electrohydraulic Closed-Center Power Steering System

Ride Comfort Simulation of a Vehicle Equipped With Semi-Active Steering System

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