Automotive knock sensor is fastened into the engine block or cylinder head of an internal combustion engine. Automotive knock sensor is used to detect knocking in combustion chamber of an automotive engine. Knock sensor consist of piezoelectric elements, which produce an electric signal based on vibrations caused by detonation. The engine uses this signal to retard timing when a spark knock occurs. Automotive knock sensor is located in the lower engine block, cylinder head, or intake manifold so that it can sense the vibration caused by the engine knock or detonation.
Detonation or knock is a form of combustion that can lower the lifespan of an engine. Detonation damages the engine and can even lead to engine failure. Detonation needs to be detected and then corrected in order to prevent the engine from any damage. This is the primary objective of the automotive knock sensor. Automotive knock sensor is also cost-effective. Increase in demand for advanced vehicles is one of the key factors driving the automotive knock sensor market. However, rise in demand for electric vehicles can adversely affect the automotive knock sensor market. Invention of any product that directly eliminates knocking from the engine can also be a threat for the automotive knock sensor market.
The automotive knock sensor market can be segmented based on frequency range, application, vehicle type, and region.
In terms of frequency range, the automotive knock sensor market can be bifurcated into linear frequency sensor and wide range frequency sensor. Automotive knock sensor operates at a particular frequency in linear frequency sensor. It operates between certain ranges of frequency in wide range frequency sensor. Knock sensor can be applied in several types of engines. The knock frequency is determined during calibration of an engine.
Based on application, the automotive knock sensor market can be divided into single cylinder engines and multi-cylinder engines. Single cylinder engines are primarily used in two-wheelers. In single cylinder engines, just one sensor is required to sense detonation in the engine. In multi-cylinder engines, the number of sensors required is equal to the number of cylinders in the engine.
In terms of vehicle type, the automotive knock sensor market can be segregated into passenger vehicles and commercial vehicles. Passenger vehicles can be further segmented into hatchbacks, sedans, and multi-utility vehicles. Commercial vehicles can be further classified into light commercial vehicles and heavy commercial vehicles. Knock sensor is mostly used in passenger vehicles.
Based on region, the automotive knock sensor market can be split into Asia Pacific, Europe, North America, Latin America, and Middle East & Africa. The automotive knock sensor market is expected to expand owing to the increase in number of vehicles on roads. Since it contributes to improve the fuel economy of the vehicle the demand for the automotive knock sensor is expected to show significant growth globally. Due to most advanced and strict emission norms in Europe and North America the market of the automotive knock sensor is likely to grow at considerable rate as the knock sensors in the vehicles can help to reduce the particulate matters.
Key manufacturers of automotive knock sensor across the globe are Robert Bosch GmbH, Continental AG, Delphi Automotive PLC, Denso Corporation, Hitachi Ltd., NGK Spark Plugs (U.S.A.), Inc., and HYUNDAI KEFICO Corporation.
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