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Method for Improved Yaw Stabilization Control by Integration of a Direct Yaw Control AWD System with a Vehicle Stability Assist Controller
Technical Paper
2008-01-1456
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In order to advance vehicle stability control strategies and provide enhanced customer benefits, a methodology for combining the capabilities of an active driveline system capable of direct yaw control with a vehicle stability assist controller (also referred to as ESC, electronic stability control) has been developed. As a basis, the traditional ESC operation of using only brake and throttle control is compared and contrasted against customer needs and expectations. Using the existing ESC stability control system as a representative yaw stability control algorithm, the actuation capabilities of a controllable AWD system are arranged through a simple CAN communication scheme to serve as an available extension to the ESC actuator set (i.e. brake, throttle and now AWD direct yaw moment control). The ESC unit is allowed to request a rear axle torque amount change to the controllable AWD unit ECU. Inside the AWD unit ECU this request is integrated with feed-forward control logic that the AWD system concurrently executes to respond to the operator's driving intention. A viewpoint towards cooperation rather than unified control integration is adopted to allow the driver to retain maneuverability, even during a lengthy ESC activation period. In addition, the cooperative structure allows each unit (ESC or AWD) to establish control of their own failsafe methodology while still allowing for integrated control. The benefits of this control structure on low surface coefficient driving conditions are shown as examples.
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Citation
Post, B., Kang, X., and Cymbal, C., "Method for Improved Yaw Stabilization Control by Integration of a Direct Yaw Control AWD System with a Vehicle Stability Assist Controller," SAE Technical Paper 2008-01-1456, 2008, https://doi.org/10.4271/2008-01-1456.Also In
References
- Delphi System and method Incorporating Feed forward for Motor Vehicle Chassis Control United States Patent 6 2003
- Fukatani K. Hamada C. Yamaguchi K. et al Development of Vehicle Dynamics Integrated Management SAE Paper No. 2006-01-0922 2006
- Shibahata Y. Tomari T. Kita K. SH-AWD: Direct Yaw Control (DYC), Aachener Kolloquium Kahrzeug-und Motorentechnik 2006
- Kunii R. Iwazaki A. Atsumi Y. et al Development of SH-AWD (Super Handling-All Wheel Drive) System, Honda R&D Technical Review, Vol 16 2 9 16 Oct. 2004
- Kunii R. Iwazaki A. Sekiya S. et al Development of Direct Electromagnetic Clutch System SAE Paper No. 2005-01-0551 2005
- Post J. Kang X. Cymbal C. Turner S. Klaus T. The Impact of Torque Vectoring Driveline Systems on The Stability and Maneuverability in All traction Conditions, presented at 2007 Chassis Tech Congress TUV SUD Automotive GmbH March 1-2 2007 Garching near Munich Germany
- Shi J. Integrated Global Chassis Control-A Top Down Approach 2006 TTTech Computertechnik AG