A pedal feel simulator (PFS) for automotive braking systems, e.g. a brake-by-wire (BBW) system and an assembly process for the simulator. The stroke simulator comprises a housing 7 with a bore b in which is located a piston 6 (labelled 4 in description) with an end subject to hydraulic pressure, e.g. from a master cylinder of the braking system. The simulator also includes a rubber spring 2, a steel spring 4 (labelled 6 in description), a closing cover 1, a pressure piece 3 and a plug 8. The steel spring 4 is retained between the pressure piece 3 and the piston 6 by the plug 8, which is inserted into the piston. The pressure piece is located between the steel spring 4 and rubber spring 2. The piston and plug may be tightly connected, e.g. by clamping, a press fit connection, laser brazing or ultrasonic plastic welding. The steel spring, pressure piece and piston form a sub-assembly which is connected together before placing in the bore in order for the spring to remain the same length throughout assembly.
Pedal feel simulator and an assembly process thereof
2021-04-21
Patent
Electronic Resource
English
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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