Traction system for a vehicle and to ensure a traction securisee of a vehicle on a ground.

摘要

The application relates to a traction system for a vehicle for a vehicle comprising a frame connected by a support device with at least one wheel (11, 13) of the vehicle able to rotate about a first axis (y) and adapted to support the vehicle on the ground, the system comprising: at least a first wheel (60, 62) able to rotate about a second axis, the first wheel being driven, a fixing means (30, 54) in order to fix the traction system to the support device and / or to a hub of the wheel of the vehicle so that the first axis (y) and the second axis being parallel and offset along a rolling direction (r2) of the first wheel (60, 62); and at least one lifting device to raise the vehicle from a rest position, in which the traction system does not carry the weight of the vehicle, to an operating position in which the traction system carries a portion of the weight of the vehicle, the fixing means and the lifting device being adapted to permit a rotation of the vehicle wheel on the ground in the position of operation. In addition, the application relates to a process for ensuring secure traction of a vehicle on a ground, in particular on a bridge of a boat.