Camshaft Position Sensor JK-S045B
keyword：
Changsha Jianke
OE No.:
95560610620
Car series：
AUDI A3 2008-2013 A4 2008-2016 A5 2008-2016 A6 2007-2016 A7 2012-2016 A8 2007-2016 Q5 2009-2015 Q7 2007-2015 R8 2008-2015 TT 2009-2015 VW BEETLE 2013 CC 2009-2016 EOS 2009-2016 GTI 2008-2014 JETTA 2008-2010 PASSAT 2008-2010 PASSAT CC 2009-2010 TIGUAN 200
Camshaft Position Sensor JK-S045B
Camshaft Position Sensor JK-S045B
OE No.:
PORSCHE
955 606 106 20,
958 606 106 00
VW
06H 905 163 A,
07L 905 163, 07L
905 163 A, 07L
905 163 B, 07L
905 163 C
Car application:
AUDI
A3 2008-2013
A4 2008-2016
A5 2008-2016
A6 2007-2016
A7 2012-2016
A8 2007-2016
Q5 2009-2015
Q7 2007-2015
R8 2008-2015
TT 2009-2015
VW
BEETLE 2013
CC 2009-2016
EOS 2009-2016
GTI 2008-2014
JETTA 2008-2010
PASSAT 2008-2010
PASSAT CC 2009-2010
TIGUAN 2009-2016
Camshaft Position Sensor Core Function:
The Camshaft Position Sensor (CMP sensor) is a critical electronic component in modern internal combustion engines. Its primary function is to monitor the rotational position and speed of the camshaft(s) and relay this real-time data to the Engine Control Module (ECM) or Powertrain Control Module (PCM).
2. Primary Purpose & Role in Engine Management:
The ECM uses the signal from the CMP sensor, in conjunction with data from the Crankshaft Position Sensor (CKP sensor), to achieve precise engine management. Specifically, it enables:
Fuel Injection Timing: Determines which cylinder is in its intake stroke to trigger sequential fuel injection for optimal efficiency and power.
Ignition Timing (Spark Timing): Precisely controls when the spark plug fires, especially in engines with Direct Ignition Systems (one coil per plug).
Variable Valve Timing (VVT) Control: Acts as a feedback sensor for VVT systems, allowing the ECM to adjust camshaft timing for performance, economy, and emissions.
Cylinder Identification: Helps the ECM identify the position of cylinder #1 for correct firing order sequencing.
In essence, it tells the engine computer "where" the camshaft is, so the computer knows "when" to inject fuel and, in gasoline engines, "when" to fire the spark for each specific cylinder.
3. Common Types & Operating Principles:
There are three main types of camshaft position sensors, categorized by their technology:
Magnetic (Variable Reluctance) Type: Uses a permanent magnet and a coil. As a reluctor wheel (notched ring) on the camshaft passes by, it changes the magnetic field, inducing an analog AC voltage signal. This type is passive (does not require an external power source) and is known for its durability.
Hall-Effect Type: Uses a Hall-effect semiconductor chip. When a shutter ring or vane on the camshaft interrupts a magnetic field, the sensor outputs a precise digital square wave signal (on/off). This type requires an external power supply and provides a more accurate signal, especially at low speeds.
Magneto-Resistive Type: A more advanced variation that can detect both direction and very fine rotational changes, used in some newer VVT systems.
4. Typical Location:
The sensor is mounted directly adjacent to a camshaft, often at the cylinder head's front or rear, near the timing cover. It is positioned with a small air gap (clearance) separating it from a reluctor wheel, tone ring, or a single notch/magnet on the camshaft itself.
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Changsha Jianke Electronics Co., Ltd
Phone: 86-731-88552129 (Personnel)
Phone: 86-731-88081666 (Sales)
Email: sales@jkaec.com
Address: No. 10, Aviation Road, Wangcheng Economic and Technological Development Zone, Changsha City
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