Tips & Technology For Bosch Partners
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1 Tips & Technology For Bosch Partners Current topics for successful workshops No. 66/2013 Electrics / Electronics Sensors Applications and Features The Bosch sensors program offers over different products in original-equipment quality. All Bosch sensors are perfectly attuned to the respective vehicle and easy to replace. Bosch is offering all important types of sensors ranging from engine management to driving safety. Angular-Position Sensors Angular-position sensor used for ESP measurement of the opening angle of the throttle valve influencing the amount of fuel injected, door / window opening angle, setting-lever angles in monitoring and control installations. - Multiturn capability - CAN interface - Self-diagnostic function - Steering-angle detection: -780 to Throttle sensor: 0-86
2 Tips & Technology No.66/2013 Page 2 Yaw Sensors Stabilization of motor vehicles, commercial vehicles, agricultural and forestry vehicles. Used on vehicle-dynamics control (ESP ) to measure yaw rate and lateral acceleration, and for vehiclenavigation and vehicle-stability systems. - Flexible sensor cluster with highly integrated electronics - Multiple use of sensor signals for future highly dynamic safety and convenience systems Rotational-Speed Sensors Wheel-speed measurement for ABS/ TCS/ESP, acceleration and deceleration measurement for safety, control and protective systems in lifts, cableways, forklift trucks, conveyor belts, machines, wind-power stations. - Contactless and thus wear-free measurement of rotational speed - Robust construction for heavy strains - Direction-dependent measurement
3 Tips & Technology No.66/2013 Page 3 Camshaft Sensors Angle for engine management: Camshaft sensors detect the camshaft position for the injection sequence. - Contactless position detection - Reliable digital measurement of angles and distances Crankshaft Sensors Detection of the engine speed: The engine speed is the main control variable for the ignition timing. - Precise digital measurement of rotational speeds - Contactless - Resistant to mineral-oil products
4 Tips & Technology No.66/2013 Page 4 Knock Sensors Engine-knock detection for anti-knock control in engine-management systems: Engine vibrations of combustion engines are registered to set the ignition timing. Reliable detection of structureborne sound to protect machines and engines. - Broadband type, 5 to 22 khz - Linear characteristics over large frequency range - Monitoring of structure-borne sounds, cavitations detection, reduced fuel consumption Hall-Effect Crankshaft Sensors Measurement of rotational and engine speeds: Contactless displacement and angular measurement, definition of end and limit settings for motor vehicles, industrial machines, robots, and installations of all types. - Precise and reliable digital measurement of speeds, angles and distances - Measurement of speed and detection of direction - Resistant to media
5 Tips & Technology No.66/2013 Page 5 Differential-Pressure Sensors Measurement of the pressure within the fuel lines: monitoring of overpressure and negative pressure, pressure limiters, filled-level measurement. - Measurement of gas-pressure differences for pressure compensation, overpressure and negative-pressure monitoring - Highly accurate and equipped with temperature compensation Absolute-Pressure Sensors Measurement of the intake-manifold pressure, measurement of the charge-air pressure for the injection of the optimal amount of fuel, pressure control in electronic vacuum cleaners, monitoring of pneumatic production lines, meters for air-pressure, altitude, blood pressure, manometers, storm-warning devices. - With integrated analytic circuit for signal amplification, temperature compensation and characteristic-curve setting - Extremely sturdy design
6 Tips & Technology No.66/2013 Page 6 High-Pressure Sensors Pressure sensors of this type are used in motor vehicles to measure the pressure in braking systems, in the fuel rail of gasoline direct-injection engines or in the commonrail system of diesel engines. - Excellent media resistance as the medium only comes into contact with stainless steel - Resistant to brake fluids, mineral oils, fuel, water and air - Offset and sensitivity self-monitoring Pressure Sensors for CNG and LPG Measurement of pressures in the context of CNG or LPG applications. Applicable just like any other pressure sensor. - All sensors are resistant to fuels (including diesel) and oils, e.g. engine oil - With temperature compensation
7 Tips & Technology No.66/2013 Page 7 Air-Mass Meters Flow-rate measurement of the intake air. Important for the correct composition of the air-fuel mixture. - Fast response time - Compact design - Return-flow detection Lambda Sensors Optimized control of the combustion for reduced emissions. Emission control for millions of vehicles - The LSU wide-band lambda sensor is a planar ZrO2 two-cell limit-current sensor with integrated heater - It is suitable to measure the oxygen content and the λ value of exhaust gases in vehicle engines - A constant characteristic curve in the range from λ = 0.65 to air makes it suitable for universal use for λ = 1 and for other ranges
8 Tips & Technology No.66/2013 Page 8 NTC Temperature Sensors Display of outside and inside temperature, control of air conditioners and inside temperature, control of radiators and thermostats, measurement of lube-oil, coolant, and engine temperature. - Measurement with temperature-sensitive NTC resistors - Broad temperature range This information may not be exhaustive. Always consult the appropriate service literature before performing any testing or repair work. No liability will be accepted. Robert Bosch GmbH reserves all rights, including in the case of industrial property rights. We reserve all rights of disposal, including copyright and right of distribution.
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