The new Model BHP/EPB™ Brake Hydraulic Pressure (BHP) and Electric Parking Brake (EPB) Systems test bench from MB Dynamics accurately measures and controls the hydraulic pressure and EPB power levels applied to brake calipers during automotive buzz, squeak and rattle (BSR) testing, as well as brake durability, stability, functional or performance testing. Varied brake pressures are applied according to timing diagrams, as well as automated or manually program-controlled repeat cycles, as required to assess brake caliper/rotor assembly noise, useful service life, and other critical performance metrics.
The Model BHP/EPB test bench supports a brake caliper/rotor assembly that is bolted onto a fixture. The fixture is attached to either the vibration exciter or test bench. The brake caliper line is routed to a panel mounted air-to-hydraulic pressure booster unit. Controlled hydraulic fluid pressure is applied to the brake caliper’s inlet port. Hydraulic brake fluid pressure commands and pressure ON/OFF time sequences are then entered and controlled via MB’s own supplied Model BHP/EPB software. The software commands the test bench System Interface Control Box to either perform data acquisition and control of applied brake pressures, or to apply and/or release the EPB, depending upon end-user needs.
The Model BHP/EPB test bench may be further synched with MB Dynamics’ own Millenium™ Dynamic Test Control System as to allow for test bench START/STOP functionality according to end-user defined schedules. The Millenium also synchronizes noise measurements by triggering data acquisition via MB’s own BSR SUITE™ vibration analysis software and sound measurement system. This combined functionality allows for synchronized BSR testing to be flexibly conducted under different ON/OFF pressures, EPB ON/OFF power levels, and timing cycles. The software also graphically displays caliper pressure, EPB voltage, and EPB current data in real-time.
Displayed data may be saved at any time and exported to either Excel or a Windows-based PC clipboard. To minimize unwanted noises during BSR testing, the system’s hydraulic panels, air panels, and EPB DC power supply are located outside of the test bench acoustic enclosure. The System Interface Control Box and PC monitor/mouse/keyboard are located inside with the operator.
Click here to view product datasheet:
Model BHP/EPB™ Brake Hydraulic Pressure (BHP) and Electric Parking Brake (EPB) Systems test bench (Rev 07/2021)
