Automotive pressure sensors are usually used to measure the pressure of liquids and gases in vehicles, so they can be used in many vehicle systems. Segmented by application, the automotive pressure sensor market can be divided into transmission systems, engine control systems, power steering systems, heating, ventilation and air conditioning systems (HVAC), airbags, anti-lock braking systems (ABS), and direct tire pressure monitoring systems ( directTPMS).
Automobile pressure sensors are mainly responsible for the following aspects: detecting cylinder negative pressure to control ignition and fuel injection; detecting atmospheric pressure to control air-fuel ratio during climbing; detecting cylinder internal pressure to control ignition advance angle; detecting waste recirculation flow and engine oil pressure , Brake oil pressure, tire air pressure, etc., and respond to related quantities.