Sensors
Overview
Sensors, an important part of everyday workshop business: No matter whether for motorsport or series applications, in order to improve driving dynamics and emission behavior, vehicles are equipped with more and more sensors. Testing, maintaining and repairing them are important sources of revenues for automotive workshops.
Universal / Lambda Sensor
The lambda sensor, a Bosch invention, significantly contributes to the compliance of modern motor vehicles with the stringent legal emission standards and ensures an optimum air / fuel ratio. The ready-to-fit and easy-to-install lambda sensor from Bosch determines the amount of oxygen in the exhaust gas and sends a signal to the ECU which adjusts the air-fuel mixture to the optimal level, thus preventing extensive damage to the catalytic converter. The sensors also provide up to 15% savings on fuel and also comply with stringent emission norms. Lambda sensors, also known as oxygen sensors, are important emission control devices that assure compliance with the emission laws and protect the environment. For economic and environmental reasons, the functioning of the sensor should be checked at regular intervals and replaced, if necessary.
Delivery Content of a Universal Sensor
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Lambda Sensor
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Universal Connector
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Installation Instructions
Advantages
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Lambda sensors send a signal to the ECUs indicating the oxygen level in the exhaust system
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All Bosch Lambda Sensors are of OE quality
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High durability through resistance to environment influence (particularly water, salt, & oil) and totally submersible
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Mechanical and thermal stability
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Maintains compliance with all exhaust emission testing
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Easy installation, even by unskilled mechanics
Features
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Watertight
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Meets OE specifications
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Fits either 3-pole or 4-pole sensors
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Enables a simple connection to the wiring harness of the vehicle
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Provides a secure electrical connection (no soldering necessary)
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Bosch has developed a special connector, as soldering is not allowed with the lambda sensor
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Universal lambda sensors replace a wide range of original sensors
Crankshaft Sensor
For non-contact measurement of crankshaft rotation angle and speed.
Features
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Temperature range : -40°C–150°C
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Typical application : Crankshaft sensor with 60–2 teeth target
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Rotation speed range : 20–7000 min-1
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Output voltage : > 1650 mV (@416 rpm)
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Well-proven production processes
Benefits
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Robust design
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Improved temperature shock stability
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Enlarged temperature range
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Reduced drift during lifetime
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Long lifetime > 300 Tkm
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All known requirements of new engine projects met
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Independent on installation position
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Contactless
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High resistance against external fields
Knock Sensor
Knocking can permanently damage an engine. Knock sensors fitted directly to the engine block, record structure-borne sound (knocking) in the engine and transfer this data to the engine management system. These values are then used to counteract the problem and ensure smoother combustion. This results in improved efficiency and longer service life.
Features
Broadband type, 5 to 22 kHz
Linear characteristics over large frequency range
30mV/g at 5 kHz, active output
Standard version: -40°C–130°C
Extended heat version: -40°C–150°C
Benefits
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Fuel consumption reduction up to 9%
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Torque increase up to 5%
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Engine protection
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Enables use of multiple quality fuels with various anti-knock properties
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No audible knocking
Camshaft Sensor
For non-contact measurement of camshaft rotation angle. They are fitted directly to the camshaft.
Features
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Single-hall technology
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True power on (TPO) function
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Twist Insensitive Mounting (TIM)
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Temperature range until 150°C (max. 250 h at +160°C)
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Small sensor diameter 11.3 mm (PG-3.9)
Benefits
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High accuracy Wide air gap range
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Small packaging size and functional diameter
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High EMC / ESD protection
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Low current consumption
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Resistant to mineral oil products
