In the steer-by-wire (SbW) system of new generation of vehicles the shaft of the conventional steering equipment is substituted by two electric drives. This article presents two schemes, termed torque and speed schemes, for the control of SbW system. The first scheme, designated with the torque scheme, is derived from the model of the conventional steering equipment, while the second one, designated with the speed scheme, copes with the interaction of the steered wheels to the road surface. Implementation of the schemes on a test vehicle is described and experimental results are reported to show the features of the schemes
Control schemes for steer-by-wire systems
BERTOLUZZO, MANUELE;BUJA, GIUSEPPE;
2007
Abstract
In the steer-by-wire (SbW) system of new generation of vehicles the shaft of the conventional steering equipment is substituted by two electric drives. This article presents two schemes, termed torque and speed schemes, for the control of SbW system. The first scheme, designated with the torque scheme, is derived from the model of the conventional steering equipment, while the second one, designated with the speed scheme, copes with the interaction of the steered wheels to the road surface. Implementation of the schemes on a test vehicle is described and experimental results are reported to show the features of the schemes
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