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Adaptive and robust braking-Traction...

Adcox, John.

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Adaptive and robust braking-Traction Control Systems.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Adaptive and robust braking-Traction Control Systems./
Author:	Adcox, John.
Description:	161 p.
Notes:	Source: Dissertation Abstracts International, Volume: 75-10(E), Section: B.
Contained By:	Dissertation Abstracts International75-10B(E).
Subject:	Automotive engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3623787
ISBN:	9781303965531

Adaptive and robust braking-Traction Control Systems.
Adcox, John.

Adaptive and robust braking-Traction Control Systems. - 161 p.

Source: Dissertation Abstracts International, Volume: 75-10(E), Section: B.

Thesis (Ph.D.)--Clemson University, 2014.

This item must not be sold to any third party vendors.

The designs of commercial Anti-Lock Braking Systems often rely on assumptions of a torsionally rigid tire-wheel system and heavily rely on hub-mounted wheel speed sensors to manage tire-road slip conditions. However, advancements in high-bandwidth braking systems, in-wheel motors, variations in tire/wheel designs, and loss of inflation pressure, have produced scenarios where the tire's torsional dynamics could be easily excited by the braking system actuator. In these scenarios, the slip conditions for the tire-belt/ring will be dynamically different from what can be inferred from the wheel speed sensors.

ISBN: 9781303965531Subjects--Topical Terms:

2181195
Automotive engineering.

Adaptive and robust braking-Traction Control Systems.
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020 $a 9781303965531
035 $a (MiAaPQ)AAI3623787
035 $a AAI3623787
040 $a MiAaPQ $c MiAaPQ
100 1 $a Adcox, John. $3 3175280
245 1 0 $a Adaptive and robust braking-Traction Control Systems.
300 $a 161 p.
500 $a Source: Dissertation Abstracts International, Volume: 75-10(E), Section: B.
500 $a Adviser: Beshah Ayalew.
502 $a Thesis (Ph.D.)--Clemson University, 2014.
506 $a This item must not be sold to any third party vendors.
520 $a The designs of commercial Anti-Lock Braking Systems often rely on assumptions of a torsionally rigid tire-wheel system and heavily rely on hub-mounted wheel speed sensors to manage tire-road slip conditions. However, advancements in high-bandwidth braking systems, in-wheel motors, variations in tire/wheel designs, and loss of inflation pressure, have produced scenarios where the tire's torsional dynamics could be easily excited by the braking system actuator. In these scenarios, the slip conditions for the tire-belt/ring will be dynamically different from what can be inferred from the wheel speed sensors.
520 $a This dissertation investigates the interaction of tire torsional dynamics with ABS & traction controllers and offers new control designs that incorporate schemes for identifying and accommodating these dynamics. To this end, suitable braking system and tire torsional dynamics simulation models as well as experimental test rigs were developed. It is found that, indeed, rigid-wheel based controllers give degraded performance when coupled with low torsional stiffness tires.
520 $a A closed-loop observer/nonlinear controller structure is proposed that adapts to unknown tire sidewall and tread parameters during braking events. It also provides estimates of difficult to measure state variables such as belt/ring speed. The controller includes a novel virtual damper emulation that can be used to tune the system response. An adaptive sliding-mode controller is also introduced that combines robust stability characteristics with tire/tread parameter and state estimation. The sliding mode controller is shown to be very effective at tracking its estimated target, at the expense of reducing the tire parameter adaptation performance. Finally, a modular robust state observer is developed that allows for robust estimation of the system states in the presence of uncertainties and external disturbances without the need for sidewall parameter adaptation.
590 $a School code: 0050.
650 4 $a Automotive engineering. $3 2181195
650 4 $a Mechanical engineering. $3 649730
690 $a 0540
690 $a 0548
710 2 $a Clemson University. $b Automotive Engineering. $3 1684493
773 0 $t Dissertation Abstracts International $g 75-10B(E).
790 $a 0050
791 $a Ph.D.
792 $a 2014
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3623787