nostromo1984 pisze: ↑28 kwie 2020, o 19:23
http://www.superczesci.pl/czujniki-cisn ... 82052.html
Co powiesz na to?Mylisz czujniki.Map Sensor jest to czujnik ciśnienia absolutnego i w silnikach benzynowych on wystepuje od ponad 20 lat.Zwłaszcza przy instalacji Lpg jest wymagany do prawidłowego wystrojenia instalacji.Natomiast w silnikach diesla z turbo ten czujnik nazywa śię tak jak napisałes.Jak możecie to napiszcie jaki pin w ECM odpowiada za VCC
Kawałek z wiki
wynika że wolnossaki mają zwykle jeden z nich: MAP, lub MAF. Turbo-Pb zwykle mają oba.
Engines that use a MAP sensor are typically fuel injected. The manifold absolute pressure sensor provides instantaneous manifold pressure information to the engine's electronic control unit (ECU). The data is used to calculate air density and determine the engine's air mass flow rate, which in turn determines the required fuel metering for optimum combustion (see stoichiometry) and influence the advance or retard of ignition timing. A fuel-injected engine may alternatively use a mass airflow sensor (MAF sensor) to detect the intake airflow. A typical naturally aspirated engine configuration employs one or the other, whereas forced induction engines typically use both; a MAF sensor on the charge pipe leading to the throttle body and a MAP sensor on the intake tract pre-turbo.
MAP sensor data can be converted to air mass data by using a second variable coming from an IAT Sensor (intake air temperature sensor). This is called the speed-density method. Engine speed (RPM) is also used to determine where on a look up table to determine fuelling, hence speed-density (engine speed / air density).
więcej tutaj, jak ktoś ciekaw:
https://en.wikipedia.org/wiki/MAP_sensor
https://en.wikipedia.org/wiki/Mass_flow_sensor