Xingjian Wang received his Ph.D. and B.E. degrees in Mechatronic Engineering from Beihang University, China, in 2012 and 2006, respectively. From 2009 to 2010, he was a visiting scholar in the School of Mechanical Engineering, Purdue University, West Lafayette, IN, USA. He is currently a professor at the School of Automation Science and Electrical Engineering, Beihang University, Beijing, China. His research interests include nonlinear control for mechatronic systems, fault diagnosis and fault tolerant control, biomechatronics and human-machine interaction control, and bio-inspired robotics. He has published over 100 papers. His research has been supported NSCF and other grants in China. He is the secretary-general of Industry Committee of Fluid Power Transmission and Control Institution (FPTCI), China Mechanical Engineering Society (CMES); the deputy director-general of Organization of Aviation Utility Systems (AUS), Chinese Society of Aeronautics and Astronautics  (CSAA); and the deputy secretary-general of Technical Committee of Fluid Power Transmission and Control (FPTC), CSAA. He is also a senior member of CMES, a member of CSAA, and a member of IEEE.Yuwei Zhang received the B.Sc. degree in Mathematics and Applied Mathematics and the Ph.D. degree in Mechanical Engineering from Beihang University, Beijing, China, in 2016 and 2021, respectively. From 2019 to 2021, he was a visiting research student at IRIDIA, the artificial intelligence laboratory of the Universite Libre de Bruxelles, Brussels, Belgium. He is currently a postdoctoral researcher at the School of Automation Science and Electrical Engineering, Beihang University, China. His research interests include fault tolerant flight control, nonlinear control of autonomous vehicles, and cooperative control of robot swarm.Shaoping Wang received her Ph.D., M.Eng., and B.Eng. degrees in Mechatronics Engineering from Beihang University, China, in 1994,1991, and 1988. She has been at the School of Automation Science and Electrical Engineering at Beihang University since 1994 and promoted to the rank of a professor in 2000. She was honored as a Changjiang scholar professor by the Ministry of Education of China in 2013. She is serving as the deputy director of the Electrical and Mechanical Branch of the Chinese Society of Aeronautics and Astronautics (CSAA), a member of the Navigation, Guidance, and Control Branch of CSAA, and the executive committee member of the Fluid Power and Control Branch of the Chinese Society of Mechanical Engineering (CSME). She is also serving as an editorial board member for various international journals, including Chinese Journal of Aeronautics. She has about 300 refereed research publications, including four books. Her research interests include engineering reliability, fault diagnostic, prognostic, health management, and fault tolerant control.

• Chapter 1 Introduction.- Chapter 2 Convex optimization-based fault-tolerant control for dissimilar redundant actuation system of civil aircraft.- Chapter 3 Fault mode probability factor-based fault-tolerant control for dissimilar redundant actuation system.- Chapter 4 Active fault-tolerant control of dissimilar redundant actuation system based on performance degradation reference models.- Chapter 5 Variable-Order Observer-based Fault Tolerant Control for Aircraft with Partial Actuator and Sensor Failures.- Chapter 6 Active Fault-Tolerant Control Strategy of Large Civil Aircraft under Elevator Failures.- Chapter 7 Dynamics and adaptive fault-tolerant flight control under structure damage of horizontal stabilizer.- Chapter 8 Active Fault-Tolerant Control of extreme faults in large aircraft based on propulsion differential.- Appendix.

Xingjian Wang received his Ph.D. and B.E. degrees in Mechatronic Engineering from Beihang University, China, in 2012 and 2006, respectively. From 2009 to 2010, he was a visiting scholar in the School of Mechanical Engineering, Purdue University, West Lafayette, IN, USA. He is currently a professor at the School of Automation Science and Electrical Engineering, Beihang University, Beijing, China. His research interests include nonlinear control for mechatronic systems, fault diagnosis and fault tolerant control, biomechatronics and human-machine interaction control, and bio-inspired robotics. He has published over 100 papers. His research has been supported NSCF and other grants in China. He is the secretary-general of Industry Committee of Fluid Power Transmission and Control Institution (FPTCI), China Mechanical Engineering Society (CMES); the deputy director-general of Organization of Aviation Utility Systems (AUS), Chinese Society of Aeronautics and Astronautics  (CSAA); and the deputy secretary-general of Technical Committee of Fluid Power Transmission and Control (FPTC), CSAA. He is also a senior member of CMES, a member of CSAA, and a member of IEEE.Yuwei Zhang received the B.Sc. degree in Mathematics and Applied Mathematics and the Ph.D. degree in Mechanical Engineering from Beihang University, Beijing, China, in 2016 and 2021, respectively. From 2019 to 2021, he was a visiting research student at IRIDIA, the artificial intelligence laboratory of the Universite Libre de Bruxelles, Brussels, Belgium. He is currently a postdoctoral researcher at the School of Automation Science and Electrical Engineering, Beihang University, China. His research interests include fault tolerant flight control, nonlinear control of autonomous vehicles, and cooperative control of robot swarm.Shaoping Wang received her Ph.D., M.Eng., and B.Eng. degrees in Mechatronics Engineering from Beihang University, China, in 1994,1991, and 1988. She has been at the School of Automation Science and Electrical Engineering at Beihang University since 1994 and promoted to the rank of a professor in 2000. She was honored as a Changjiang scholar professor by the Ministry of Education of China in 2013. She is serving as the deputy director of the Electrical and Mechanical Branch of the Chinese Society of Aeronautics and Astronautics (CSAA), a member of the Navigation, Guidance, and Control Branch of CSAA, and the executive committee member of the Fluid Power and Control Branch of the Chinese Society of Mechanical Engineering (CSME). She is also serving as an editorial board member for various international journals, including Chinese Journal of Aeronautics. She has about 300 refereed research publications, including four books. Her research interests include engineering reliability, fault diagnostic, prognostic, health management, and fault tolerant control.

• Chapter 1 Introduction.- Chapter 2 Convex optimization-based fault-tolerant control for dissimilar redundant actuation system of civil aircraft.- Chapter 3 Fault mode probability factor-based fault-tolerant control for dissimilar redundant actuation system.- Chapter 4 Active fault-tolerant control of dissimilar redundant actuation system based on performance degradation reference models.- Chapter 5 Variable-Order Observer-based Fault Tolerant Control for Aircraft with Partial Actuator and Sensor Failures.- Chapter 6 Active Fault-Tolerant Control Strategy of Large Civil Aircraft under Elevator Failures.- Chapter 7 Dynamics and adaptive fault-tolerant flight control under structure damage of horizontal stabilizer.- Chapter 8 Active Fault-Tolerant Control of extreme faults in large aircraft based on propulsion differential.- Appendix.

Xingjian Wang received his Ph.D. and B.E. degrees in Mechatronic Engineering from Beihang University, China, in 2012 and 2006, respectively. From 2009 to 2010, he was a visiting scholar in the School of Mechanical Engineering, Purdue University, West Lafayette, IN, USA. He is currently a professor at the School of Automation Science and Electrical Engineering, Beihang University, Beijing, China. His research interests include nonlinear control for mechatronic systems, fault diagnosis and fault tolerant control, biomechatronics and human-machine interaction control, and bio-inspired robotics. He has published over 100 papers. His research has been supported NSCF and other grants in China. He is the secretary-general of Industry Committee of Fluid Power Transmission and Control Institution (FPTCI), China Mechanical Engineering Society (CMES); the deputy director-general of Organization of Aviation Utility Systems (AUS), Chinese Society of Aeronautics and Astronautics  (CSAA); and the deputy secretary-general of Technical Committee of Fluid Power Transmission and Control (FPTC), CSAA. He is also a senior member of CMES, a member of CSAA, and a member of IEEE.Yuwei Zhang received the B.Sc. degree in Mathematics and Applied Mathematics and the Ph.D. degree in Mechanical Engineering from Beihang University, Beijing, China, in 2016 and 2021, respectively. From 2019 to 2021, he was a visiting research student at IRIDIA, the artificial intelligence laboratory of the Universite Libre de Bruxelles, Brussels, Belgium. He is currently a postdoctoral researcher at the School of Automation Science and Electrical Engineering, Beihang University, China. His research interests include fault tolerant flight control, nonlinear control of autonomous vehicles, and cooperative control of robot swarm.Shaoping Wang received her Ph.D., M.Eng., and B.Eng. degrees in Mechatronics Engineering from Beihang University, China, in 1994,1991, and 1988. She has been at the School of Automation Science and Electrical Engineering at Beihang University since 1994 and promoted to the rank of a professor in 2000. She was honored as a Changjiang scholar professor by the Ministry of Education of China in 2013. She is serving as the deputy director of the Electrical and Mechanical Branch of the Chinese Society of Aeronautics and Astronautics (CSAA), a member of the Navigation, Guidance, and Control Branch of CSAA, and the executive committee member of the Fluid Power and Control Branch of the Chinese Society of Mechanical Engineering (CSME). She is also serving as an editorial board member for various international journals, including Chinese Journal of Aeronautics. She has about 300 refereed research publications, including four books. Her research interests include engineering reliability, fault diagnostic, prognostic, health management, and fault tolerant control.

• Chapter 1 Introduction.- Chapter 2 Convex optimization-based fault-tolerant control for dissimilar redundant actuation system of civil aircraft.- Chapter 3 Fault mode probability factor-based fault-tolerant control for dissimilar redundant actuation system.- Chapter 4 Active fault-tolerant control of dissimilar redundant actuation system based on performance degradation reference models.- Chapter 5 Variable-Order Observer-based Fault Tolerant Control for Aircraft with Partial Actuator and Sensor Failures.- Chapter 6 Active Fault-Tolerant Control Strategy of Large Civil Aircraft under Elevator Failures.- Chapter 7 Dynamics and adaptive fault-tolerant flight control under structure damage of horizontal stabilizer.- Chapter 8 Active Fault-Tolerant Control of extreme faults in large aircraft based on propulsion differential.- Appendix.