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Meeting	ACGS Committee Meeting 113 - Englewood, Colorado - March 2014
Agenda Location	9 SUBCOMMITTEE E – FLIGHT, PROPULSION, AND AUTONOMOUS VEHICLE CONTROL SYSTEMS 9.4 Lateral/Directional Control Law Design and Handling Qualities Optimization for a Business Jet Flight Control System
Title	Lateral/Directional Control Law Design and Handling Qualities Optimization for a Business Jet Flight Control System
Presenter	Tom Berger & Steve Hagerott
Affiliation	UC Santa Cruz & NASA Ames & Cessna
Available Downloads*	presentation
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Abstract	Lateral/Directional Control Law Design and Handling Qualities Optimization for a Business Jet Flight Control System by Tom Berger, Steven Hagerott, Mark Tischler, Dagfinn Gangsaas, and Nomaan Saeed This study aimed to design lateral Directional Fly-By-Wire (FBW) control laws for business jets across the flight envelope, leveraging model following architecture experience, and using multiple-model optimization to enable gain scheduling with respect to Mach and dynamic pressure. The application was to light business jets in the Cessna CJ1 class. Results were compared with explicit model-following control laws, and account was made of command delay effects. A multiple-Model optimization approach was pursued using Control Designer’s Unified Interface (CONDUIT). The results were found to yield Level 1 handling qualities across the flight envelope of a small FBW business jet. The multi-model optimization approach enabled gain scheduling with Mach and dynamic pressure to meet requirements for the full range of loading conditions.