Vehicular brakes provided by a hydraulic feedback simulator -- Bi wire braking system and operation method of its braking system

摘要

The vehicle braking system (4) is a manual connection fluidly connected through a first hydraulic conduit (16) to an absorber (20) that simulates the reaction force provided by a hydraulically operated braking device (24). A pilot pump (8) provided with at least one of a lever and a pedal as an operating means (12) and having a first shut-off valve (28) disposed along the hydraulic conduit (16); A second hydraulic conduit (32) operably connected to at least one braking device (24) associated with the wheel and connected to said first hydraulic conduit (16) through a second shut-off valve (36); Said second hydraulic conduit (32), said system (4) further for operating said pilot pump (8) and said at least one controller (24) A processing and control unit (40) operatively connected to the motor means (44), said processing and control unit (40) being in said "by-wire" operating state, said manual operating means (12 The processing and control unit (40) programmed to operate the braking device (24) via the motor means (44) in response to the operation of the pilot pump (8) through In the “by-wire” operating state, the first shut-off valve (28) is selectively opened and the second shut-off valve (36) is selectively closed. Preferably, the processing and control unit (40) activates the motor means (44) to avoid locking one or more wheels or destabilizing the vehicle during braking. Is programmed to monitor the operation of the braking system (4) in order to improve the braking action requested by the user via the manual actuating means (12), the processing and control unit ( 40) is programmed to induce at least vibration in the manual actuation means (12) when improving the braking action requested by the user.