Traction system and a method for controlling said traction system

摘要

In a method for controlling a traction system for a heavy road vehicle, the system includes a first mechanical propulsion system, a second hydraulic propulsion system, and a control unit. The method includes measuring a first parameter value, indicative of the rolling radius of a first traction wheel, measuring a second parameter value, indicative of the rolling radius of a second traction wheel, and the control unit using the first and second parameter values for determining a present relation between the rolling radii of the first and second traction wheels. The control unit provides an output signal based on the present relation to optimize the traction applied to the second traction wheel. A traction system and a heavy vehicle incorporating a traction system are also provided.

主权项

1. A method for controlling a traction system for a heavy road vehicle, the traction system comprising:
a first mechanical propulsion system comprising at least one first traction wheel; a second hydraulic propulsion system comprising at least one second traction wheel; and a control unit for controlling traction applied to the second traction wheel;the method comprising:
measuring via at least one first sensor a first parameter value indicative of a rolling radius of the first traction wheel; transmitting the first parameter value to the control unit; measuring via at least one second sensor a second parameter value indicative of a rolling radius of the second traction wheel; transmitting the second parameter value to the control unit; determining via the control unit and using the first and second parameter values a present relation between the rolling radii of the first and second traction wheels in order to identify a change in the relation between the rolling radii of the first and second traction wheels; and providing via the control unit an output signal based on the present relation such that the control unit takes into account the change in the relation between the rolling radii of the first and second traction wheels to optimize the traction applied to the second traction wheel of the hydraulic propulsion system, wherein, a slip of at least one of the first and second traction wheels occurs in response to the optimization of the traction applied to the second traction wheel.