Invited Guest Speakers
Eros Sales - Global Friction Application director, ITT Motion Technologies
Ingredient Variability and Its Effect on Friction Materials Performance
Friction materials generally may contain up to 20 different ingredients. Considering that each raw material has its intrinsic variability, the effects that the variability can generate on the final product are evident if there are no well defined strict tolerances on the characteristics under control.
The ingredients used for the preparation of friction material (NAO or Low Met or Semi Met) can be divided in few categories: binders, metals, fibers, fillers, abrasives and lubricants. Tolerances are defined based on laboratory analysis and technical papers of the suppliers. Each ingredient has a specific role and can modify the characteristics of the final product. Density, porosity and compressibility can be influenced by phenolic resin variability, while friction level can be modified by different lubricant / abrasives ratio.
Mechanical strength depends on fiber type and content (metallic, inorganic and organic). The control of the incoming batch of raw materials is mandatory to maintain under control all the characteristics of the friction material and prevent issues in the market.
Dr. Sales has a degree in chemistry and since 1986 he has been working at ITT in R&D departement in friction development, first as compounder, followed as global project mangement director and now as friction global application director.
George Ostermeyer - Professor Institute of Dynamics and Vibrations
On emissions of brakes
The process of vehicle emission reduction had a long time only the engine in focus. With the new emissions standards, the engine emissions are lower than the emissions generated by abrasion of tires and brakes. Consequently, R & D now turn to the brake missions. In many places now objectified measurement standards for brake particle emissions will be developed.
An analytical approach evolves from the boundary layer dynamics of brake pads, which reveals more and more the central role of wear for the emergence of friction and emission dynamics.
The talk will concentrate on European activities in measurement and show some new research activities in emission generation by friction in brakes.
He is professor and head of the Institute of Dynamics and Vibrations (IDS) at University of Braunschweig. He has about 30 years of experience in industry and University on friction and brakes and published more than 250 papers. He got several Awards, f.i. the Lloyd L. Withrow Award and the Dan Mahanna Achievement Award. He is member of the Steering Committee of eurobrake and of the Advisory Board of the SAE Brake Colloquium.
His special Research Areas with respect to brakes are: Green Brake Technologies, Tribology of High load friction pairs
Prof. Dr. John David Fieldhouse - Advisor to Industry
Fundamentals of Brake design
Software development has progressed to a state where the engineer needs to input only base information and the result is provided by an appropriate program. This is excellent for time savings within the industry but a complaint by many senior engineers is that new recruits can readily operate the programs but rarely understand the fundamentals driving that program. As such they are not able to modify, develop or “tune” it to suit the differing needs of a company and indeed “add to” or move towards optimizing a brake design. More important is that there is a blind faith in the answer with little recognition of potential issues – NVH being at the forefront of many braking problems.
This presentation will consider the important aspects of brake design – brake sizing, load transfer & brake balance, electronic braking distribution (EBD), ABS, thermal aspects& NVH. There will be consideration given towards electric braking including energy recovery systems. It is expected that a case study of a tractor/semi-trailer will serve to demonstrate the difficulties of brake design when the load magnitude and position is generally unknown. Such situations demand a common approach (a standard) but this tends to existing problems not being addressed – trailer slew, jackknifing and rollover.
John retired from Huddersfield University where he developed a brake noise research center, an automotive research and teaching laboratory and a mechanical engineering design studio. He became Visiting Professor at Bradford University and helped develop their current braking research center. He continues to teach vehicle mechanics, performance, steering and suspension systems at Leeds University and is an active advisor to industry.
His special interests include:
The education of automotive engineers to meet the challenges of the 21st century.
Brake design with an emphasis on NVH issues.
Dr. Yossapong Laoonual - President Electric Vehicle Association of Thailand
Electric Vehicle Technology and Updates on Thailand
The electric vehicle (EV) technology has become a promising technology to reduce the tailpipe emissions and greenhouse effects. Even though the global cumulative number of PHEVs & BEVs was reported to have reached over two million in 2016, it was still less than 0.2% of total vehicles in stock. The challenge is the battery technology improvement that the cost of batteries should decline and energy density should increase to close the gap of total cost of ownership between EVs and internal combustion engine vehicles without government subsidy. However many countries are setting up the target for EV, and it is expected that the number of electric vehicles could reach the 30% market share in 2030. In 2015, the Royal Thai Government has officially started to promote the electric vehicle technology in Thailand. The target of EV action plan (2016-2036) was introduced with an aim of 1.2 million passenger plug-in electric vehicles (PHEV & BEV) and 690 EV chargers by 2036 contributing for CO2 reduction of 1,123 thousands tones of oil equivalent. This presentation will give a brief introduction on the electric vehicle technology and updates on the EV policy and support mechanisms in Thailand.
Dr. Yossapong Laoonual is one of founding members of Electric Vehicle Association of Thailand (EVAT) and currently the first elected President. He is currently academic staff at the mechanical engineering department at King Mongkut’s University of Technology Thonburi (KMUTT). He has served on a number of committees in both government levels and volunteer based society. He was an adviser on sub-committee on study of electric vehicle usage policy and investment promotion of electric vehicle industry, national legislative assembly. Currently he is a subcommittee member on regulatory control of air Pollution from motor vehicle, under pollution control committee, national environment board.
Zulhaidi M Jawi - Senior research officer, Malaysian institute of road safety research (miros)
Braking issues in the real world: a perspective of road safety
We need the brake in vehicle to bring it to a halt, or to reduce speed while travelling. While the concept is rather simple, what happens in the real world is a totally different story. Philosophically, we allow human to operate road vehicle (“the machine”) without so much restrictions or control as in the aviation industry or even in maritime. Humans are weak when they are exposed to power (speeding over the limit), easily get distracted, and being too optimistic and over confident. All these bad qualities in the road safety system originating from human have made the system not sustainably safe. The inventions on braking technologies today are actually responding to the above mentioned problems, and this includes the idea to have autonomous vehicle. The available technologies are centered on the effort to overcome the weaknesses of human beings, e.g. to assist drivers to brake on time, to estimate and reduce headway distance, etc. It is predicted that in the (near?) future, humans do not need to drive a vehicle; hence, the future of braking technologies should no longer consider human factors in the entire design.
Mr. Zulhaidi was graduated in Systems and Control Engineering from Case Western Reserve University (Ohio, USA) in 2006 and straight away started his career as Research Officer at the then newly established Malaysian Institute of Road Safety Research (MIROS) in early of 2007. As one of the pioneers of MIROS, he has vast experiences in road safety research and development projects. He has involved in the continuous study on “driver education reform” since day one until today, had served the crash reconstruction team as crash analyst (2007-2009), actively involved in the development of MIROS PC3 crash laboratory (2009-2013) and the inception of ASEAN NCAP (officially appointed as the Communications Manager, 2012-2014). He is also actively publishing articles on his personal study coined as the “automotive ecosystem in Malaysia”. He is currently pursuing his post-graduate study at one of the Malaysia’s reputable universities (UKM) on the “systems thinking” and “systems engineering” perspective with regard to current road safety issues.