ME 2041 ADVANCED I.C. ENGINES – Consists of a fixed value resistor, supplied with 5V. It Senses the change in voltage between the temperature sensor and the fixed value ECU resistor. the sensor is cold, resistance is high and voltage is increases. When the temperature increases, the sensor resistance and the voltage decreases. As Knock Sensor: detects the engine knock occurs during combustion process, it is located in the It engine block. knocks within a specific frequency range. Engine is a piezoelectric element, generates a voltage when a pressure or vibration is It applied. Throttle and timing sensor: provides the information about how fast the engine is running or where the It crankshaft is in its rotation. senses this information and adjusts the fuel injection and the timing so that ECU the engine speed does not exceed the safe operating limits. sensors use a target wheel with a missing or odd-shaped gear tooth to provide These the reference position. Course material Compiled from: a) course in internal combustion engines” by V.M. Domkundwar. “A b) John B Heywood,” Internal Combustion Engine Fundamentals” c) Gupta H.N, of Internal Combustion Engines” “Fundamentals d) fundamentals of Internal combustion engines” by Willard W. Pulkrabek. “Engineering e) internal combustion engine research” Peter Van Blarigan Sandia, National “Advanced Laboratories, Livermore, CA 94550. f) And many more publications with the help of internet published materials and sites. COMPILED BY: SP.ARUNKUMAR, AP (SR.GR)/MECH SRI RAMAKRISHNA INSTITUTE OF TECHNOLOGY, PACHAPALAYAM, COIMBATORE-10. 99 out of 99
ME 2041 – ADVANCED I.C. ENGINES It Consists of a fixed value resistor, supplied with 5V. ECU Senses the change in voltage between the temperature sensor and the fixed value resistor. When the sensor is cold, resistance is high and voltage is increases. As the temperature increases, the sensor resistance and the voltage decreases. Knock Sensor: It detects the engine knock occurs during combustion process, it is located in the engine block. Engine knocks within a specific frequency range. It is a piezoelectric element, generates a voltage when a pressure or vibration is applied. Throttle and timing sensor: It provides the information about how fast the engine is running or where the crankshaft is in its rotation. ECU senses this information and adjusts the fuel injection and the timing so that the engine speed does not exceed the safe operating limits. These sensors use a target wheel with a missing or odd-shaped gear tooth to provide the reference position. Course material Compiled from: a) “A course in internal combustion engines” by V.M. Domkundwar. b) John B Heywood,” Internal Combustion Engine Fundamentals” c) Gupta H.N, “Fundamentals of Internal Combustion Engines” d) “Engineering fundamentals of Internal combustion engines” by Willard W. Pulkrabek. e) “Advanced internal combustion engine research” Peter Van Blarigan Sandia, National Laboratories, Livermore, CA 94550. f) And many more publications with the help of internet published materials and sites. COMPILED BY: SP.ARUNKUMAR, AP (SR.GR)/MECH SRI RAMAKRISHNA INSTITUTE OF TECHNOLOGY, PACHAPALAYAM, COIMBATORE-10. 99 out of 99
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