A Supervisory Control to Manage Brakes and Four-Wheel-Steer Systems

Bedner, Edward; Chen, Hsien H.

doi:10.4271/2004-01-1059

Cited by 18 publications

(9 citation statements)

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“…Furthermore, a vehicle equipped with DYC can lead to a level of disturbance and annoyance to the driver because of more frequent braking. 14 The reported studies have invariably shown a beneficial vehicle-handling performance with AFS under low to moderate lateral acceleration manoeuvres. Integrated AFS and DYC control, however, has been frequently suggested for moderate to severe directional manoeuvres, 13,14 although the causal factors associated with the performance limits of AFS have not been clearly illustrated.…”

Section: Introductionmentioning

confidence: 98%

“…14 The reported studies have invariably shown a beneficial vehicle-handling performance with AFS under low to moderate lateral acceleration manoeuvres. Integrated AFS and DYC control, however, has been frequently suggested for moderate to severe directional manoeuvres, 13,14 although the causal factors associated with the performance limits of AFS have not been clearly illustrated. This approach, however, increases the control complexity apart from the undesirable effect of DYC in terms of a reduction in the forward speed.…”

Section: Introductionmentioning

confidence: 98%

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An independently controllable active steering system for maximizing the handling performance limits of road vehicles

Farazandeh

Ahmed

Rakheja

2014

Proceedings of the Institution of Mechanical Engineers, Part D:

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This study explores the effectiveness of an active independent front steering system capable of applying a corrective steering at each wheel selectively and in an independent manner. In doing this, it is possible to generate the required adhesion force for active steering control while ensuring that none of the tyres approaches saturation. A non-linear yaw-plane model of a two-axle truck with a limited number of roll degrees of freedom is used to evaluate the effectiveness of the active independent front steering under a range of steering manoeuvres. A simple proportional-integral controller is synthesized to track the reference response based on the neutral steering system as well as to limit the steering correction considering the saturation limit of the tyres, which is defined from the normalized cornering stiffness properties of the tyres. The directional responses obtained for the vehicle model integrating the active independent front steering controller are compared with those of the conventional active front steering system for each of the selected manoeuvres. The results show that, while both the control strategies can effectively track the target yaw rate of the vehicle, the proposed active independent front steering control can yield enhanced performance limits without any of the tyres approaching the saturation limit, irrespective of the road condition and the steering manoeuvre. Furthermore, the active independent front steering design permits some adhesion reserve for each wheel for generating additional traction and braking forces during a severe steering manoeuvre.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 98%

An independently controllable active steering system for maximizing the handling performance limits of road vehicles

Farazandeh

Ahmed

Rakheja

2014

Proceedings of the Institution of Mechanical Engineers, Part D:

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“…This also offers the advantage of a significant optimization in braking time and a more flexible and instinctive braking for a comfortable driving. The use of X-by-wire technology in the automotive domain, offers many advantages in safety and driving assistance [4,5,6]. In the developed prototype, this technology permits a greater simplicity and precision of braking and acceleration actions by the driver during steering operations.…”

Section: Introductionmentioning

confidence: 99%

Dynamic model of steer-by-wire system for driver handwheel feedback

Ait-Oufroukh

Messaoudène

Mammar

2013

2013 10th IEEE INTERNATIONAL CONFERENCE ON NETWORKING, SENSING AND CONTROL (ICNSC)

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International audienceRecent advances towards steer-by-wire technology have promised significant improvements in vehicle handling performance and safety. This technology inspired from aeronautics, consists in replacing the traditional mechanical linkages and/or hydraulic power assist with electrical equivalents. This paper describes the adopted approach for development of a new dynamic model of a Steer-by-wire system with hydraulic assistance in the case of stopped vehicle. The aim is to establish dynamic equations of the forces and torques exchanged between handwheel and the front wheels during steering operations. Some simulation results are provided. The proposed model will be experimented using a prototype equipped with handwheel feedback system

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“…In the 80s of last century, the researchers began to decompose the complex chassis control problem into a number of subcontrol systems and then use a mechanism to coordinate the dynamic relationship between the subsystems to meet the control requirements. Therefore, the research and discussion of the integrated control architecture of the chassis form [2][3][4][5][6][7][8][9] began to become the focus.…”

Section: Introductionmentioning

confidence: 99%

Design and Simulation Analysis for Integrated Vehicle Chassis-Network Control System Based on CAN Network

Sun

2016

Journal of Sensors

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Due to the different functions of the system used in the vehicle chassis control, the hierarchical control strategy also leads to many kinds of the network topology structure. According to the hierarchical control principle, this research puts forward the integrated control strategy of the chassis based on supervision mechanism. The purpose is to consider how the integrated control architecture affects the control performance of the system after the intervention of CAN network. Based on the principle of hierarchical control and fuzzy control, a fuzzy controller is designed, which is used to monitor and coordinate the ESP, AFS, and ARS. And the IVC system is constructed with the upper supervisory controller and three subcontrol systems on the Simulink platform. The network topology structure of IVC is proposed, and the IVC communication matrix based on CAN network communication is designed. With the common sensors and the subcontrollers as the CAN network independent nodes, the network induced delay and packet loss rate on the system control performance are studied by simulation. The results show that the simulation method can be used for designing the communication network of the vehicle.

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A Supervisory Control to Manage Brakes and Four-Wheel-Steer Systems

Cited by 18 publications

References 1 publication

An independently controllable active steering system for maximizing the handling performance limits of road vehicles

An independently controllable active steering system for maximizing the handling performance limits of road vehicles

Dynamic model of steer-by-wire system for driver handwheel feedback

Design and Simulation Analysis for Integrated Vehicle Chassis-Network Control System Based on CAN Network

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