Automotive development

Sensor systems in the car

The use of sensors in modern cars is today indispensable. Everyone is familiar with the application of ABS systems where sensors measure the wheel speed and derive control parameters from it for the brakes.

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Ovality inspection on brake pipes using vision4A

For the highly accurate measurement of the roundness of the ends of brake pipes in production with short cycle times, only a precise and versatile vision system is able to fulfill the required rapid data ...

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Brake disc concentricity

Brake discs are subject to the highest loads in use and are responsible for the safety of vehicles. For this reason alone, brake discs are thoroughly inspected on test benches. Brake discs are checked ...

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Brake disc temperature measurement for Formula Student

In the optimization of braking systems for the High Octane Motorsports e.V. racing car at the University Erlangen-Nürnberg, the temperature rise of the brake disc needs to be measured during on-road testing.

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Injector needle lifting

Combustion engines are a combination of many different technologies. Therefore, the precision of each individual one is responsible for the performance of the engine. The actual injected amount of fuel ...

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Monitoring the commutator in electric motors

The “eddyNCDT” system offers many advantages for the non-contact monitoring of the mechanical condition of the commutator in electric D.C. motors or generators. The system uses the eddy-current measuring ...

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Grat- und Verschmutzungsfreiheit im Hochdruckverteiler

Aufgrund der kleinen Öffnungen und der Krümmung ist es nicht möglich, den Verlauf des Lots mit einer visuellen zerstörungsfreien Werkstoffprüfung durchzuführen. Durch ...

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Pistons

Combustion engines must withstand maximum loads during a long service life. In order to deal with this requirement, eddy current sensors from the eddyNCDT series are installed in the engine for many different ...

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Piston – Top Dead Center

The Top Dead Center of the cylinder movement is measured for adjustment of the precise ignition point in engine development. In doing so, a miniature eddy current sensor is integrated in the cylinder head ...

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Piston Secondary Movement and Piston Ring Position

To improve the construction of internal combustion engines and damage analyzes, it is neccessary to measure the thermal and mechanical loads in the engine. Two important variables here are the transverse ...

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Piston ring- and piston secondary movement

Manufacturers of combustion engines require reliable data in order to determine the exact position of the piston, the piston rings and also of the existing pressure conditions. Using simulation tools, ...

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Piston secondary movement

Among other things, the lateral movement of the piston in the cylinder is crucial for the service life of engines. Miniature eddy current sensors for this are integrated in the piston which measure onto ...

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Image processing system for the detection of markings

In order to increase the process reliability in the final assembly of cars it is necessary make a reliable differentiation between the wheel and spare wheel on different types of vehicle once the tire ...

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Oil film thickness

The oil film thickness for combustion engines describes the gap and thus the quantity of oil between piston and cylinder wall. Thus it is sometimes a determining factor for smooth operation and durability. ...

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Clutch wear in racing cars

Racing cars are stressed to the limits of their capabilities. It is not without reason that pioneering technologies are often first tested in racing cars before they find their way into mass production. ...

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In-line inspection of the rubber on windshield wiper blades

A faultless surface is indispensable for the functionality of wiper blades. Therefore, wiper blades are inspected by the measuring system after the extrusion in the endless state. In doing so, two scan ...

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Lubrication gap

Sliding bearings are used for crankshaft bearings in the engine. A specific minimum distance is required so that the bearing operates as wear-free as possible. Miniature eddy current sensors are ...

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Turbochargers

Apart from the angle of the guide vanes, the speed of the vanes on the turbine wheel is important for the performance of the turbocharger. The rotation of the vanes is measured on the face side for this. ...

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Measurement of valve movement

In order to optimize engine power, fuel consumption and valve lifetime, it is important to measure the exact valve movement in the running internal combustion engine. Using eddy-current displacement sensors ...

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Valve lift measurement in the MultiAir cylinder

The MultiAir cylinder procedure patented by FIAT / Schaeffler controls individual valves independently of the camshaft. An electro-hydraulic control system provides fully variable valve control. Therefore, ...

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Valve lift sensor

Controlling the valves of combustion engines using electromagnetic actuators is a current objective of many engine developers. This technology makes possible potential fuel consumption savings of 8% - ...

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Oil film thickness measurement in an internal combustion engine

Included in the objectives of current engine development are minimization of pollutants and the reduction of oil consumption. In order to be able to take measures in achieving these objectives, then along ...

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Displacement/timing measurement in the common rail injector

Diesel engines of the latest generation no longer have a diesel injection pump to supply fuel, but instead utilize the common rail principle. In order to optimize the injector configuration for the respective ...

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Examination of the oscillation behavior of toothed-belt camshaft drives

To examine the influence of various system and operating parameters on the dynamic behavior of multi-disk drives a belt oscillation test bench has been set up which simulates the toothed-belt drive system ...

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Low cost sensors for cylinder applications

Monitoring the movement of gas pressure or hydraulic cylinders is solved very elegantly using an eddy current sensor. This sensor is integrated in the cylinder. An aluminum ring is used as the target. ...

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Cylinder breathing of the cylinder head gasket

Specially shaped eddy current sensors are integrated directly in the crankcase where they measure, for example, the expansion of the cylinder head gasket during the stroke. Pressures of up to 50 bar are ...

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