VEHICLE STEERING CONTROL SYSTEM Russian patent published in 2017 - IPC B62D13/04 B62D5/00 

FIELD: transportation.

SUBSTANCE: steering system of the uniaxial semitrailer of the bolster-type road train contains the trailer unit steering linkage, the executive power cylinder, the rod of which on the one side is kinematically connected to the steering linkage, on the other side through a slide valve and a mechanical parallelogram-type steering gear - to the copier. The mechanical steering gear is represented by a master device mounted on the fifth wheel device of the tractor by means of a swinging boom, moving along the arcuate slot of the variable curvature and cross-section, located at the bottom of the semitrailer base plate. The trailer unit hydraulic steering system is autonomous, and is not connected with the tractor hydraulic steering control system. The mechanical copier has the slot with the profile calculated specifically for the semitrailer steered wheels, depending on the road train jack-knifing angle, the fixators providing the road train wheels rolling "in the tracks", and the spring-loaded rollers facilitating the master device return into the neutral position to stabilise the semitrailer steered wheels.

EFFECT: increasing the manoeuvrability and passability of a land bolster-type road train.

2 dwg