| 摘要 |
FIELD: transport.SUBSTANCE: traction drive controlled parameters are set to compute required total traction forces at LH and RH propulsors and to compute reduced rpm of every propulsor. In traction mode, minimum reduced rpm is isolated while in braking mode maximum rpm is isolated. Propulsor number corresponding to isolated rpm is defined to compute absolute magnitude of propulsor spin. Estimate of propulsor absolute spin reduced to isolated engine location is computed. Design magnitudes of controlled parameters are defined for every propulsor to compute maximum total LH and RH traction forces. In case traction drive cam realises said total traction forces at LH and RH propulsors it realises these. In case total required traction forces of at least one side exceeds the maximum attainable tolerable traction force of this side, then control is effected in one of three modes.EFFECT: better heading hold, optimised traction forces, enhanced control performances.6 cl, 3 dwg |
