Patent Number: 8,820,855

Title: Hydraulic braking device having security provisions, for a farm tractor or a similar vehicle

Abstract: A braking system for farm tractors and similar vehicles, has a differential braking system and a hydraulic system for the braking assistance forming a system unit (H) which includes two circuit branches (H1,H2), each circuit branch operating the braking with respect to one side of the vehicle. To the system unit are applied, through connection interfaces (36,37), two control units (C1,C2), each control unit including an electrovalve (20) and a distributor (24) operated by the electrovalve, each distributor controlling the operation of the system unit (H) with respect to one of the circuit branches, and each electrovalve being singularly controlled by an electronic control circuit (EL) provided with sensors of the main vehicle parameters, such as a sensor (V) of the vehicle speed, sensors (R) of the speed of singular wheels, sensors (P) of the positions of the braking pedals and a sensor (A) of the position of the accelerator pedal.

Inventors: Cadaddu; Leonardo (Crema, IT)

Assignee: VHIT S.p.A. Unipersonale

International Classification: B60T 11/21 (20060101)

Expiration Date: 9/02/12018