Products & Equipment

Engine Management Sensors

Robert Bosch LLC

January 23, 2014 - Products

The Bosch line of original equipment engine management sensors includes 370 part numbers covering 89.4 million vehicles in operation (VIO) in the United States.

“Automotive technology today uses an increased number of electronic components to ensure the proper functioning of the various systems on the modern vehicle – from engine management to passive safety,” said Ellen Hornung, Senior Product Manager, Engine Management Sensors, Robert Bosch LLC.

Featuring high accuracy in measurement with fast response times, these sensors are all exactly the same as those manufactured for OEMs (original equipment manufacturers), said Hornung. 

Accurate and reliable, the Bosch line of original equipment engine management sensors includes:

  • Pressure sensors
    • Low pressure sensors (oil, fuel, coolant)
    • High pressure sensors (fuel)
    • Differential pressure sensors
  • Engine Position sensors
    • Crankshaft sensors
    • Camshaft sensors
    • Throttle sensors
    • Knock sensors
  • Air Management sensors
    • Mass air flow sensors
    • Manifold intake pressure sensors
    • Temperature sensors

Pressure sensors supply the engine management system with reliable values to ensure that the engine runs with the appropriate air/fuel ratio. Highlighted in this range of sensors are the high-pressure sensors which record the fuel pressure in the high pressure rail of the gasoline direct injection (GDI) system. These sensors have excellent media resistance to ensure no corrosion caused by the fluids being measured. All Bosch pressure sensors provide very reliable and accurate measurements and have extremely fast response times.

Position sensors, like crankshaft and camshaft sensors, are used to record a wide variety of measurement data. The information they supply is used to detect engine speed, which is the main control variable for the ignition timing, and the camshaft position for the injection sequence. These sensors feature contactless and thus, wear-free measurement of rotational angle and speed. Knock sensors fitted directly to the engine block record structure-borne sound (knocking) in the engine and transfers this data to the engine management system. These values are used to counteract the problem and ensure smoother combustion which results in improved efficiency and longer service life. 

Air management sensors like the mass air flow sensor and the manifold intake pressure sensor, help to optimize the combustion process. This requires mixing the air and fuel in a precisely defined ratio, utilizing a MAF sensor to record the exact air mass flow, which is transmitted in the form of an electrical signal to the ECU. Bosch OE technology MAF sensors measure to very fine tolerances for efficient engine performance. They are guaranteed to match vehicle requirements for performance, drivability, fuel economy and emissions. The MAP sensor measures the intake- manifold pressure and the charge-air pressure in order to inject the optimal amount of fuel. Bosch MAP sensors are compact, durable and vibration-resistant with outstanding measuring accuracy.

Temperature sensors monitor the temperature of coolant, oil and air and transfer the data to the engine management system. Depending on the application these sensors may be installed in the engine block, cooling circuit or intake-air passage. They provide precise accuracy under extreme conditions.

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