Fun-to-Drive by Feedback*

Canudas‐de‐Wit, Carlos; Bechart, Hubert; Claeys, Xavier; Dolcini, Pietro; Martínez, John J.

doi:10.1016/s0947-3580(05)71042-6

Cited by 8 publications

(9 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…During this phase, the amplification torque decreases, until reaching the lower saturation values. In literature, we can find many stationary models for the EPS system ( [3], [4], [5], [6], [7], [8], [9], [10], [11]), where the hysteresis cycle is approximated by a single curve. Nevertheless, these investigations do not provide ground foundations (other than these curves reproduce the behaviour of the older power steering systems, based on hydraulic valves), neither evidence that they are optimal for the driver in any sense.…”

Section: Introductionmentioning

confidence: 99%

Genesis of booster curves in Electric Power Assistance Steering systems

Ciarla¹,

Cahouët²,

Canudas‐de‐Wit³

et al. 2012

2012 15th International IEEE Conference on Intelligent Transportation Systems

View full text Add to dashboard Cite

Abstract-The typical architecture of an Electric Power Assistance Steering (EPAS) system includes a static map to provide the correct amplification to the driver's exerted torque. In literature, it is generally known as booster curve. This paper concerns the study of the amplification criteria, that are commonly used to these booster curves. The basic concepts of the Electric Power Steering (EPS) systems with a realistic model for the friction contact, that acts on the wheels are discussed. A relation between the assistance and the driver's torque is provided, under the hypothesis of a position-oriented control of the movement and the Stevens' power law. Finally, the simulation results proposed at the end of this paper validate the shape of the booster curves and are in accord with the initial hypothesis.

show abstract

Section: Introductionmentioning

confidence: 99%

Genesis of booster curves in Electric Power Assistance Steering systems

Ciarla¹,

Cahouët²,

Canudas‐de‐Wit³

et al. 2012

2012 15th International IEEE Conference on Intelligent Transportation Systems

View full text Add to dashboard Cite

show abstract

“…1, do not have well defined design measures such as tracking error signals. On the other hand, performance criteria such as "comfort" and "feel" are subjective in nature [3,17]. Furthermore, such criteria are difficult to quantify using physical measurements available during normal operation [15].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the choice of the robust multi-objective H2/H∞ performance [18] is motivated by the desire to enforce closed loop time-domain specifications in the L2-sense by means of the implicit model following (IMF) [12], and disturbance attenuation within the H∞ framework. This model following approach provides a natural setting to address the subjectivity involved by treating the difference between desired and actual dynamics as a design objective [3,12]. Furthermore, unlike model-matching based on the Youla-parametrization approach, the IMF does not require additional states in the feedback system, leaving fixed-structure controllers unaltered.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Robust multi-objective control for systems involving human-in-the-loop passivity constraints with application to electric power steering

El-Shaer

Tomizuka

2010

2010 IEEE/ASME International Conference on Advanced Intelligent Mechatronics

View full text Add to dashboard Cite

This paper is concerned with the stability and synthesis of fixed structure controllers satisfying robust multi-objective H 2 /H∞ performance for systems involving human-in-the-loop actuation. Closed loop robust stability conditions are studied for both sector-bounded and passive uncertainties. An iterative algorithm comprised of both genetic algorithms and semi-definite programming is presented for control synthesis purposes. This approach is used to design a 2-degree-offreedom controller for an Electric power steering system. Experimental results using hardware-in-the-loop setup are given. The results indicate that the control design did satisfy the criteria for robust performance.

show abstract

“…When applying these solutions on an actual car one of the major hurdles to face is the integration of the driver's wish in the controller [2]. Traditionally this is archived employing look-up tables driven by the throttle pedal position specifying a reference value for the engine and clutch torque.…”

Section: Introductionmentioning

confidence: 99%

Observer-based optimal control of dry clutch engagement

Dolcini

Bechart²,

Wit³

Proceedings of the 44th IEEE Conference on Decision and Control

View full text Add to dashboard Cite

Résumé -Commande optimale de la synchronisation de l'embrayage par observateur -La majorité des boîtes de vitesses robotisées en série ont une commande de l'embrayage sec basée sur des tables de valeurs soigneusement choisies afin d'assurer une synchronisation sans à-coups mais avec un long temps de patinage lors des décollages. Cet article propose, à la place, une stratégie en deux parties : une première partie en boucle ouverte basée sur des tables de valeurs assurant un faible temps de patinage couplée à une deuxième phase assurant une synchronisation sans à-coups grâce à la commande optimale des dernières instants de la synchronisation. Une attention particulière a été dédiée aux détails pratiques d'implémentation de la stratégie en temps réel sur un prototype de Clio II équipé de boîte de vitesses robotisée. Les résultats expérimentaux montrent un écart remarquablement petit entre les trajectoires théoriques et mesurées ainsi qu'un niveau très élevé de confort. Abstract -Observer-Based Optimal Control of Dry Clutch Engagement -Conventionally the control of dry clutch's engagement during a standing start in AMT vehicles is assured by look-up tables

show abstract

Fun-to-Drive by Feedback*

Cited by 8 publications

References 60 publications

Genesis of booster curves in Electric Power Assistance Steering systems

Genesis of booster curves in Electric Power Assistance Steering systems

Robust multi-objective control for systems involving human-in-the-loop passivity constraints with application to electric power steering

Observer-based optimal control of dry clutch engagement

Contact Info

Product

Resources

About