Objective Analysis of Creep Groan Countermeasures and Vehicle Validation is now available from Diego Scarpellini, Brembo S.p.A., on the EuroBrake website. He answers a few related questions in this Spotlight.
What do you find most interesting about the topic you are presenting on?
I think that the most interesting part of the topic that I’m presenting is the introduction of a synthetic objective index to evaluate the single events that compose a test, in literature I found a lot of graphical results, but the comparison of different systems could be difficult just by using images.
Another interesting point is the study and the definition of a ranking of importance of different parameters that could be used like countermeasures to modify the Creep Groan behavior.
How has coronavirus affected your work and has it had a direct impact on the work you are presenting?
Coronavirus directly affected my work because this activity is based on testing results and the availability of these depended on the working time of dyno. Fortunately Brembo had a rapid response to global crisis adapting his work at the new security directive and opening his factories in few weeks.
Who do you think will be most interested in seeing your presentation and who would you most like to ask questions about it?
I think our customers will be interested in this new methodology because Creep Groan is a problem that becomes more and more important every year due to the growing attention to acoustic behavior in static conditions; the development of electric vehicles has introduced the need to achieve quiet conditions by focusing on vibrational problems tolerated in the past.
Friction material manufacturers would also be interested in the results we have obtained on the study of influence parameters and on the objectification of the test results that allow us to numerically define trends and rankings to help product development.
Diego Scarpellini graduated in Mechanical Engineering from the University of Bergamo with a thesis on innovative control methods for electro-pneumatic systems for earthquake simulation, in collaboration with mechatronics research laboratories.
He has been working in Brembo since 2014 at the NVH methodology department, during his activity he pays particular attention to the study of the vibrational problems of vehicles such as Judder and Creep Groan, and to the objectification of the results for the standardization of tests.