Dynamometer Brake Noise Evaluation with GMW 17427 High Humidity and Extreme Freeze Cold Modules

EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of GMW 17427 testing. The GMW 17427 standard is a test standard developed by General Motors (GM) to evaluate brake noise in vehicles during dyno testing. The standard addresses test procedures for brake squeak, particularly in high humidity and cold below freezing environments.

Brake squeaking is a phenomenon that occurs when brake pads and rotors vibrate at a certain frequency, causing an audible sound. It is a common problem that can affect the comfort and safety of passengers and can be difficult to diagnose and resolve.

The GMW 17427 standard provides a test method for evaluating brake noise by subjecting brakes to specific environmental conditions.

The standard includes two modules:

• High Humidity Module: This module includes testing the brake system in high humidity conditions to simulate the effect of water on the braking system. The test involves operating the brakes at various speeds and brake pressures while maintaining a constant humidity level.
• Subfreezing Cold Module: This module includes testing the braking system under sub-freezing conditions to simulate the effect of cold air on the braking system. The test involves cooling the brake system to a certain temperature and then operating the brakes at various speeds and brake pressures.

The GMW 17427 standard specifies test procedures and acceptance criteria, as well as the equipment and tools required to perform the test. The standard also provides guidance on data analysis and reporting.

In summary, the GMW 17427 standard is a test standard developed by General Motors to evaluate brake noise in high humidity and freezing cold conditions. The standard provides specific test procedures and acceptance criteria for testing the brake system under these conditions. This standard helps ensure the safety and comfort of passengers by addressing the common brake noise issue.

EUROLAB assists manufacturers with GMW 17427 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.