Control allocation for the X-33 using existing and novel quadratic programming techniques

Simmons, Adam; Hodel, A.S.

doi:10.23919/acc.2004.1386824

Cited by 16 publications

(9 citation statements)

References 12 publications

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“…The most direct method of attacking this problem is through the use of nonlinear programming; however, the application of this technique to flight critical systems is hampered by a lack of convergence guarantees. Recent research in the area has also led to control allocation methods that allow the effects of actuator dynamics to be addressed [50,51,52]. The method of Reference [50] is particularly appealing because it can be used to post process the outputs of any control allocator to compensate for the effects of actuator dynamics.…”

Section: Control Allocationmentioning

confidence: 99%

Progress in Guidance and Control Research for Space Access and Hypersonic Vehicles

Doman

Oppenheimer

Bolender

2006

Proceedings of the 45th IEEE Conference on Decision and Control

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Over the past decade, both NASA and the U.S. Air Force have directed significant efforts aimed at reducing the cost of access to space as well as improving the reliability and safety of launch vehicles. From a guidance and control perspective, efforts have focused on the development of fault tolerant autonomous systems that can recover vehicles from failures or damage when physically possible. The state of the art is summarized in this manuscript and some of the challenges preventing widespread use of some of the techniques are discussed. The integration of vehicle health management systems with adaptive guidance and control is also discussed.

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Section: Control Allocationmentioning

confidence: 99%

Progress in Guidance and Control Research for Space Access and Hypersonic Vehicles

Doman

Oppenheimer

Bolender

2006

Proceedings of the 45th IEEE Conference on Decision and Control

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“…For the force-controlled vehicle, the actual actuating forces come from the drive forces, lateral forces, and steering angles on each wheel. Referring to Simmons, 28 the command forces τ produced jointly by the wheel forces and steering angles can be generally expressed as follows…”

Section: Control Algorithmsmentioning

confidence: 99%

A novel control approach for path tracking of a force-controlled two-wheel-steer four-wheel-drive vehicle

Tan

Shi

Katupitiya

2018

Proceedings of the Institution of Mechanical Engineers, Part D:

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This paper presents a novel approach for a force-controlled over-actuated two-wheel-steer four-wheel-drive vehicle to achieve accurate path tracking through control allocation. The control algorithm is developed by combining embedded integrator model predictive control and sequential quadratic programming–based control allocation. Based on the offset model presented in this paper, the model predictive control can generate the virtual accelerations. Using these virtual accelerations in control allocation, the actual control inputs are obtained. The proposed method is then used in a simulation to demonstrate its successful implementation in path tracking.

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“…There are usually two approaches in literature, namely, allocation to individual tire forces (or torque) [22,59,60], and allocation to individual wheel slips [10,22,25]. It is explained in [61] that the former approach may yield unstable slip values exceeding the peak point of the force vs. slip curve, as shown in Figure 48.…”

Section: Control Allocationmentioning

confidence: 99%

Development of a vehicle stability control strategy for a hybrid electric vehicle equipped with axle motors

Bayar

Wang

Rizzoni

2012

Proceedings of the Institution of Mechanical Engineers, Part D:

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Hybrid-electric vehicles have been available to consumers for over a decade, and plug-in hybrid and pure electric vehicles are rapidly becoming mainstream products with the introduction of vehicles such as the Chevrolet Volt and the Nissan Leaf in 2011. These vehicles have in common an electric powertrain, comprised of one or more electric motors and of a battery pack which in the case of hybrid vehicles supplements and internal combustion engine. It is well understood that hybrid and electric vehicles have the benefit of significant reduction in CO 2 emissions and in the use of petroleum as a fuel. However, one additional benefit of hybrid and electric vehicles remains so far under-utliized: the use of the electric traction system to enhance vehicle stability control. This potentially or low cost feature could provide additional motivation for customers to choose hybrid or electric vehicles over conventional ones. This dissertation documents the conception and development of a novel control strategy to allocate braking and tractive forces in a hybrid electric vehicle equipped with axle motors, for the purpose of enhancing the vehicle stability control system. The work described in this dissertation documents the development of a hierarchical control strategy, its design and stability proofs, and its evaluation using software and model inthe-loop methods. I express my deepest gratitude to my adviser Prof. Giorgio Rizzoni for his guidance, criticism, encouragements and logistic support throughout the research. Special thanks go to my co-adviser Prof. Junmin Wang for the advice and direction he gave me without which this work could not have been conducted. Also, I am grateful to other members of my dissertation committee, Prof. Dennis Guenther and Dr. Gary Heydinger who have contributed to this work with valuable suggestions. I feel very privileged to have all of you in my dissertation committee. Finally, I would like to thank my parents, Akif Bayar and Leyla Bayar by heart, for their moral support and self-sacrifice throughout my whole life. I offer sincere thanks to my elder brother Fırat Bayar, my grandparents Özden and Şerafettin Seyhun, and my former "yol arkadaşım" Tuğba Özal for their support in moral and academic respect.

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Control allocation for the X-33 using existing and novel quadratic programming techniques

Cited by 16 publications

References 12 publications

Progress in Guidance and Control Research for Space Access and Hypersonic Vehicles

Progress in Guidance and Control Research for Space Access and Hypersonic Vehicles

A novel control approach for path tracking of a force-controlled two-wheel-steer four-wheel-drive vehicle

Development of a vehicle stability control strategy for a hybrid electric vehicle equipped with axle motors

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