Model BHP/EPB Test Bench

The Model BHP/EPB Test Bench is for automotive brake hydraulic pressure (BHP) and electric parking brake (EPB) systems R&D.

It accurately measures and controls the hydraulic pressure and EPB power levels applied to brake calipers and drums during automotive squeak and rattle or BSR testing under a variety of pressure conditions. It does so in accordance with GMW16316, “Objective Brake Component Squeak & Rattle Test” procedures.  The test bench also supports automotive brake caliper development and qualification testing, during which articles are subjected to various automated brake fluid pressures & EPB controls. It further allows for mileage accumulation, performance cycling, and other forms of brake durability testing with full manual control of brake caliper parameters, as required for troubleshooting, warranty, and other R&D requirements.

The test bench software commands the system to either perform data acquisition and control of applied brake pressures or to apply and/or release the EPB. Varied hydraulic brake and EPB caliper pressure levels may be applied according to timing diagrams with automated cycling of different pressures, ramp rates, ON/DWELL times, OFF times, and total test times. Displayed test bench data may be saved at any time and exported to either an Excel or a Windows-based PC clipboard.

These and other unique features allow the Model BHP/EPB to support automotive industry assessments of brake caliper and rotor assembly noise, useful service life, and other critical brake performance metrics.