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Low Jerk Predictive Force Modulation for Semi-Active Suspension Control
Technical Paper
2008-01-0904
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The dampers of semi-active vehicle suspensions have a limited working region. They are only capable of delivering control force in phase with damper contraction/expansion. Without special measures the delivered control force may be switched on and off abruptly at the entering/exiting of the damper working region. This causes deterioration of ride comfort quantified by the derivative of vehicle body acceleration (jerk).
Proposed is a control algorithm modification for smooth force transition at the borders of the damper working region. A time based force modulation is used. A predictor of the time to exiting the working region is proposed to lower requested force in advance. A hybrid controller is investigated combining level and time based force modulation.
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Citation
Stamatov, S., Krishnan, M., and Yost, S., "Low Jerk Predictive Force Modulation for Semi-Active Suspension Control," SAE Technical Paper 2008-01-0904, 2008, https://doi.org/10.4271/2008-01-0904.Also In
References
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