MAP CONTROL OF COMBUSTION ENGINES WITH A MAGNETIC INDUCTIVE TORQUE SENSOR
Modern combustion engines are high-performance machines. The processes in the engines are optimised and coordinated so that the current and future EU directives are complied with. The efficiency of these motors is based on a complex interaction of sensors, which are needed to determine the optimal operating point of the motors. The accuracy of the sensors used defines the accuracy of the determined operating point and thus the combustion efficiency of the engines.
The sensor data are used to calculate the torque, which is used as a manipulated variable, by means of developed models for the motors. A drift of the signal from the sensors used causes the engine to deviate from its optimum operating point and the combustion efficiency to deteriorate. As a result, the composition of the emissions changes and the consumption of the engine increases. In addition, the statistical scattering of the sensors prevents the developed models, which form the basis for the engine maps, from allowing each engine to leave the production lines optimally tuned.
By using a magnetic inductive torque sensor from Magnetic Sense, the output torque of the combustion engines can be measured directly and incorporated into the engine maps as a manipulated variable. This direct torque measurement method means that the optimum engine parameters can be set at any time. This means that the engine can run at maximum power, minimising its consumption of fossil fuels and also reducing its pollutant emissions. The torque sensors that were common on the market up to now were in a price range of several thousand Euros, which meant that their use in series production was not economical. Thanks to Magnetic Sense‘s innovative magnetic inductive technology, which uses magnetic fields to measure mechanical stresses in waves, torque measurement applications that were previously impossible, can now be implemented. Torque sensors with very narrow installation space requirements can be developed ready for series production. Due to the magnetic inductive measuring concept and the sensors integrated in planar coil technology, a very robust and long-term stable possibility to measure the torque is created, even under hard requirements. The sensors realized in the first prototypes are waiting for the first series applications, in automobiles and trucks, to improve the engine generations of the future and to contribute to the efficiency and cleanliness of internal combustion engines that meet the new EU directives. Would you like to get to know the torque sensor from Magnetic Sense and gain your first experience with it? Then contact us and start with us into the future of torque and force measurement.
Magnetic Sense torque sensor applications
- Contactless measuring principle
- Insensitive to mechanical overload
- Digital literarized output signal
- Robust against interference fields
- No mechanical or magnetic processing of the measuring point necessary
- No specific requirements for the material of the shaft
- No ageing effects
