The Brake System Market is projected to grow at a CAGR of 6.94%, to reach $31.94 Billion by 2021, during the forecast period as per a report by MarketsandMarkets.
What are the opportunities offered by the brake-by-wire system?
Brake-by-wire system is one of the latest technologies that help to achieve weight reduction targets. The brake-by-wire system eliminates the mechanical linkages between a system and replaces them with electric wires, motors, and actuators to help reduce the weight as well as to improve the response time of the system. In traditional brake systems, hydraulic pressure is generated by pressing down on the brake pedal, which then used to activate brake shoes or pads. On the other hand, brake-by-wire replaces the hydraulic and physical linkages between various components of a system and uses electrical signals to actuate the brakes. Several attempts have been made to create a feasible brake-by-wire system over the years, but the technology is yet to be commercialized in mass production levels. The major cause for the failure of this technology is the associated risk of the ECU failing or a misinterpretation of the data received through sensors.
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One of the pioneers of this technology is Mercedes-Benz (Germany), which launched its Sensotronic brake system. Toyota (Japan) introduced an electro-hydraulic brake system in 2001 for its Estima Hybrid. Brake-by-wire technology is predominantly used in hybrid and battery electric vehicles. Bosch (Germany) has developed a vacuum independent, electromechanical brake booster for the efficient braking system. The potential widespread adoption of this technology in the mainstream vehicle will present an opportunity for various automotive OEMs as well as brake manufacturers.
How Brake emissions are a challenge to the Brake Systems market?
Reducing the emissions from brake wear is the biggest challenge for the brake industry. Exhaust and non-exhaust vehicular emission sources are estimated to contribute almost equally to particulate matter (PM) emissions. The frictional contact between the disc and the pad generates particles of various sizes.
Brake wear is a substantial contributor to particulate matter emission among the non-exhaust vehicular sources. It is significant in areas having high traffic density and braking frequency. On the contrary, its emission contribution is lower on freeways due to lower braking frequency. According to a study published in American Chemical Society, brake wear can contribute up to 55% by mass to total non-exhaust traffic-related PM10 emissions and up to 21% by mass to total traffic-related PM10 emissions in urban environments. According to EPA estimates, approximately 60% of the total brake wear is emitted as airborne PM. Some constituents of airborne brake wear particles are potentially dangerous to human health.
In general, braking emission rates are higher during braking, low-speed coasting, and medium speed coasting. According to a study done by EPA for heavy heavy-duty (HHD8), emission rates are the highest among all vehicle types during braking and low and moderate speed coasting. For light-duty vehicles, the emission rate is the lowest in every operation mode. OEMs are tackling this challenge with the development of brake friction material to produce reduced wear.
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Some of the key manufacturers operating in the Brake System Market are Continental AG (Germany), ZF Friedrichshafen AG (Germany), Robert Bosch GmbH (Germany), Aisin Seiki Co., Ltd. (Japan), Wabco Holdings, Inc. (U.S.), and Knorr-Bremse (Germany).
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