An automotive cam position sensor determines which cylinder is firing to establish injector synchronization and coil firing sequence in a distributor-less ignition system. The camshaft position sensor is located in the cylinder head of the engine and has a cylindrical portion that inserts into the head. The cam position sensor monitors the position of the camshaft and reports data to the engine control unit. The engine control unit gathers inputs from sensors and other devices to keep the engine running. The fuel injectors use the data from the cam position sensor to know when to fire. Cam position sensors operate on pulse detection and counting. The fundamental components of these sensors include a toothed disc mounted on the shaft, a stationary detector, and an electronic circuit. The disc has teeth or marks distributed evenly around its circumference. When the shaft spins, the teeth or marks pass by the stationary detector and generate a series of electrical pulses.
The camshaft position sensor provides valuable information regarding the camshaft position to the computer management system. The computer management system utilizes the information from the position sensor to determine when to inject more fuel. Fuel is likely to be injected incorrectly if the computer management system does not receive correct inputs from the sensor, and the vehicle is likely to stall. The sensor eliminates the requirement for a distributor system, which has disadvantages such as wear and low efficiency, which are eliminated by cam position sensors. This resulted in the higher efficiency of the engine. These advantages are driving the automotive cam position sensor market. Increasing demand for vehicles in developing countries has created numerous opportunities for the automotive cam position sensor market.
Cam sensors are often exposed to extreme heat and can burn off, this is expected to restrain the automotive cam position sensor market. A faulty camshaft sensor can result in an uneven idle, misfire, and poor acceleration. It can even prevent the engine from starting.
The automotive cam position sensor market can be segmented based on technology, location of mounting, input power, and geography. In terms of technology, the automotive cam position sensor system market can be segmented into magnetic pick-up coils, Hall-effect sensors, magneto-resistive element (MRE) sensors, and optical sensors. The first three utilize the metal teeth of the wheel to generate a series of electric pulses when the teeth come into the proximity of the sensor. Optical position sensors employ a light-emitting diode light source and a photodiode to detect optical marks on the shaft or slots in a disk as they move past the detector. Optical sensors have good accuracy and are suitable for both high-speed and low-speed applications.
Based on location of mounting, the automotive cam position sensor market can be segregated into mounted on timing cover over the camshaft gear, on the end of the cylinder head (in case of overhead cam application), and mounted in a special housing. Depending up on the mountings of the other engine components such as position of cam and rocker arm, the mounting location of the camshaft position sensor varies. In terms of input power, the automotive cam position sensor market can be divided into passive cam position sensor and active position sensor. An active position sensor requires an external source of power. A passive cam sensor detects and responds to some type of input from the physical environment. This input may consist of infrared, temperature, force, and light.
Based on geography, the automotive cam position sensor market can be segmented into North America, Asia Pacific, Europe, Middle East & Africa, and the Rest of the World. The automotive market in Asia Pacific is a prominent market for automotive. The demand for automotive cam position sensors. Demand for automotive cam position sensors increasing in parallel with demand for automotive.
Cam position sensors play a vital role to help meet the increasing demand for highly efficient automotive engines.
Prominent manufacturers of automotive cam position sensors emphasize on increasing its efficiency. Key players operating in the automotive cam position sensor market are Robert Bosch GmbH, Continental AG, DENSO CORPORATION, Delphi Automotive LLP, Valeo, ZF Friedrichshafen AG, Hitachi Ltd., CARDONE Industries, Wells Vehicle Electronics, and Walker Products Inc.
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