Passenger Car Inertia Brake Dynamometer
Passenger Car Inertia Brake Dynamometer
Model 1250/1252

The Greening Model 1250/1252 Inertia Brake Dynamometer provides laboratory facilities for the development and performance testing of brake assemblies with special emphasis on the requirements for testing according to SAE, FMVSS, ISO, EEC, ECE and JASO recommended practices and regulations. This machine is a sophisticated unit that is designed to be both ergonomic and economical.  The rugged cast iron machine base houses the drive motor that creates a compact tabletop design.  A vertical brake cooling air system facilitates brake set-up by creating a large working area.







·        Available in single-ended, dual-ended, and "twin" dynamometer configurations.

·        A rotational inertia system provides the stored energy for deceleration conditions.  The dynamometer drive motor provides required torques for drag conditions and for simulation of grade effects.

·        Latest digital computer technology is utilized to simplify test setup and dynamometer conditions with or without grade simulation.

·        This system incorporates special features to maximize test data accuracy and reliability.  Automatic signal calibration, simultaneous acquisition of time and distance frame data, and digital/adaptive control "outer loops" are some of the major features.

·        Full inertia simulation, inertia "trimming" and uphill/downhill grade simulation add to test sequence flexibility.

·        The computer based control system provides for data acquisition, recording, display, and selective printout of analog "in-stop" and computed test data and test status information.  All data and status information is available for further analysis on an off-line computer via an interface with a local area network.

·        The machine is designed for setup by one person and for automatic operation on a 24-hour continuous duty cycle basis.

·        Brake apply pressure or torque control without overshoot of programmed level even at high apply rate conditions.

·        Dual-end dynamometers simulate front and rear brake combinations or a complete axle.  They may be tested simultaneously providing data on the "load sharing" and brake balance behavior of the two brake assemblies.

·        Precise control of brake apply pressure at each end of the dual dynamometer is achieved with state of the art servo control systems.  Ask our competitors for their instantaneous brake pressure apply data measured at each test brake and compare the performance!

·        Rebuild/upgrade services available on existing test machines (including those manufactured by others).