Modern braking systems development is moving towards the reduction of long tests on open roads. However, one of the most critical items when reducing the mileage in open roads is brake wear. This work answers a simple question about how to simulate brake patterns in dynamometers to reduce the mileage of brake tests to be performed on vehicles. In the first part of this article, a set of data coming from a brake durability test was analysed. Particularly this is needed to define the target wear value for the brake dynamometer procedure.
†Brake Dynamometer Testing
The fixture is mounted on the Applus IDIADA PC2 (Passenger Car 2) dynamometer. This dynamometer is a full-scale dyno, which can replicate the exact vehicle performance, at its corresponding inertia. The specifications of the dyno is as follows:
†Route classification and selection To reproduce the routes on the dyno the first important element is the selection of a representative route. First of all, a standard Mojacar route is made of the following main sections:
a. Bedding routes
b. Country road routes (usually called Lubrin Routes)
c. Highway routes.
To select representative routes for wear correlation purposes, both bedding routes and highway routes are not considered. The first ones because they are considered as not representative of the study. The motorway routes, instead, are assumed not to be contributing to the wear generation.
In addition to this, the following snubs are also eliminated:
Snubs at low speed (<3 km/h)
Snubs in the noise search area
Snubs where the difference between initial and final speed
is less than 3km/h
In this way, the average mileage for each route in the dyno is calculated to be 125 km.
Under this criterion, the mileage of the test is modified as follows:
No impact on the average wear is assumed.
ãã®èšäºã¯ Auto Components India ã® February 2025 çã«æ²èŒãããŠããŸãã
7 æ¥éã® Magzter GOLD ç¡æãã©ã€ã¢ã«ãéå§ããŠãäœåãã®å³éžããããã¬ãã¢ã ã¹ããŒãªãŒã9,000 以äžã®éèªãæ°èã«ã¢ã¯ã»ã¹ããŠãã ããã
ãã§ã«è³Œèªè ã§ã ?  ãµã€ã³ã€ã³
ãã®èšäºã¯ Auto Components India ã® February 2025 çã«æ²èŒãããŠããŸãã
7 æ¥éã® Magzter GOLD ç¡æãã©ã€ã¢ã«ãéå§ããŠãäœåãã®å³éžããããã¬ãã¢ã ã¹ããŒãªãŒã9,000 以äžã®éèªãæ°èã«ã¢ã¯ã»ã¹ããŠãã ããã
ãã§ã«è³Œèªè ã§ã? ãµã€ã³ã€ã³
JOHN DEERE'S AUTONOMOUS LEAP
John Deere's CES launches underscore its commitment to real-world customer solutions. It is addressing the critical labour shortage and operational efficiency challenge, writes Upendra Kasbekar.
SUPPLIERS ALIGN WITH OEMS
The Bharat Mobility Global Expo 2025, surpassed expectations with its expansive and innovative components display. It is a testimony to tier suppliers and ancillaries steering towards the future value chain, writes Ashish Bhatia.
INTEGRATED DRIVELINE SOLUTIONS
As the automotive industry moves towards electrification and intelligent mobility, integrated driveline solutions are a fundamental requirement, writes Upendra Kasbekar.
MAHLE GROUP RESTRUCTURING
MAHLE is undergoing a transformative restructuring as part of its âMAHLE 2030+â strategy, aimed at accelerating its transition towards electrification and thermal management.
ADDON BRAKING SYSTEM FOR SMART CONTROL
Braking technology has evolved beyond just stopping power; it now ensures intelligent control, efficiency, and accident prevention, writes Upendra Kasbekar
COCKPIT ELECTRONICS AND SMART ACCESS
A smaller Indian cockpit electronics market has significant growth potential and requires modernisation. Indian suppliers are ready, writes Ashish Bhatia.
INDIA IS FIGHTING FIT
In 2024, India's defence sector witnessed substantial developments in vehicle modernisation, infrastructure enhancement, and strategic partnerships, writes Ashish Bhatia.
IMTEX 25 SPOTLIGHTS TECHNOLOGICAL CHANGES
The Bangalore International Exhibition Centre (BIEC) was once again the epicentre of technological advancements and industrial collaboration as the Indian Machine Tool Manufacturersâ Association (IMTMA) successfully concluded the IMTEX, Tooltech & Digital Manufacturing 2025.
UNION BUDGET 2025 TRADE OFF AND GROWTH IMPETUS
The Union Budget 2025, presented amidst a charged parliamentary session, maintained the course for Indiaâs economic future and ended with a surprise forego to boost growth, writes Ashish Bhatia
BRAKE WEAR TESTING: CORRELATION BETWEEN VEHICLE AND DYNAMOMETER TESTING (PART 2 OUT OF 3)
This research focuses on reducing the mileage of open-road brake tests by simulating brake patterns on dynamometers, writes Fabio Squadrani, Senior Manager, Braking Systems in Applus IDIADA.
