A System-Safety Process For By-Wire Automotive Systems

Amberkar, Sanket; D’Ambrosio, Joseph G.; Murray, B.T.; Wysocki, J. A.; Czerny, Barbara J.

doi:10.4271/2000-01-1056

Cited by 33 publications

(16 citation statements)

References 2 publications

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“…Also, as the proposed ECU should calculate the control algorithm of the front wheel motor, a complex calculation, such as a PID controller or nonlinear controller, may require a filtering algorithm or a complex fail-safe circuit. A complex circuit in a By-Wire system is not good for constructing a fail-safe system [2]. Fig.…”

Section: Steering Wheel Motor Control Algorithmmentioning

confidence: 99%

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Development of the electronic control unit for the rack-actuating steer-by-wire using the hardware-in-the-loop simulation system

2005

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Section: Steering Wheel Motor Control Algorithmmentioning

confidence: 99%

“…In order to develop a system with these merits, research for the SBW system has proceeded rapidly. Sanket Amberkar et al [2] proposed a system-safety process in a by-wire system for new automotive technology. The SBW mechanism has recently developed into several types; rack actuating type, tie-rod actuating type and knuckle actuating type.…”

Section: Introductionmentioning

confidence: 99%

Development of the electronic control unit for the rack-actuating steer-by-wire using the hardware-in-the-loop simulation system

2005

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“…Hayama and Nishiazki (2000) proposed the SBW system using direct yaw moment control based on vehicle stability (6) . Czerny et al (2000) investigated fail-safe logic using 2 micro controllers to compensate for the Electronic Control Unit (ECU) of an SBW system (7) . Segawa et al (2001) proposed yaw rate and lateral acceleration control for improving vehicle stability (5) .…”

Section: Research Background and Purposementioning

confidence: 99%

The Design of a Controller for the Steer-by-Wire System

Chae

Yun

et al. 2004

JSME Int. J., Ser. C

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Drive-by-Wire (DBW) technologies improve conventional vehicle performance and a Steer-by-Wire (SBW) system is one of the DBW technologies. The control algorithm of the SBW system was designed in this paper. To verify the control algorithm, the SBW system is modeled using the bond graph method. The first aim of the control algorithm is controlling the steering wheel assist motor to make the real vehicle's steering feel and for a vehicle designer to adjust the steering feel as he finds necessary. Therefore, torque map is designed to determine the steering wheel reactive torque. The second aim is controlling the front wheel assist motor to improve vehicle's maneuverability and stability by using understeer and oversteer propensity of a vehicle. Furthermore, high performance control algorithm is proposed in this paper and Active Roll Stability Control (ARSC) method is designed as one of the high performance control algorithm.

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“…On the system level, the so-called risk analysis maps system hazards to accidents (on vehicle level) and comes quite early in every safety related development process [9,10]. Procedures for doing this are described in [1, part 5] or [6].…”

Section: Review Of Safety Standardsmentioning

confidence: 99%

Controllability of Active Steering System Hazards: From Standards to Driving Tests

Reinelt¹,

Lundquist²

2006

SAE Technical Paper Series

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When developing new automotive systems a great deal of the development effort is devoted to ensure a sufficient functional safety of the system. A question that arises during early risk analyses of such a system is that of the controllability of possible system hazards. While this question is answered in early stages very often using worst-case risk graphs, the question comes back later in a much more precise way: in case of active steering systems component failures would produce a deviation between desired and actual road wheel position, the deviation can be measured in terms of amplitude and/or time. The central question is how much deviation can be controlled by the driver? Note, that there will always be a certain, even small, deviation between desired and actual road wheel position since the steering systems controller contains feedback control algorithms aiming at minimising the regulation error but not actually making it disappear totally.

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A System-Safety Process For By-Wire Automotive Systems

Cited by 33 publications

References 2 publications

Development of the electronic control unit for the rack-actuating steer-by-wire using the hardware-in-the-loop simulation system

Development of the electronic control unit for the rack-actuating steer-by-wire using the hardware-in-the-loop simulation system

The Design of a Controller for the Steer-by-Wire System

Controllability of Active Steering System Hazards: From Standards to Driving Tests

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