Preh Supplies Throttle Position Sensor For Ford's Coyote V-8 Engine

Novi, MI - Preh, a leading supplier of automotive driver controls, sensors and electronic control units, has integrated a contactless sensor into the throttle body for Pierburg for the Ford Coyote V-8 engine, used in the Ford F-150 truck and Mustang passenger car.

In the past five years, Preh has supplied approximately 25 million position sensors to its customers, predominantly for electronic throttle control and exhaust gas engine applications. While the car manufacturers continue to use the previously proven potentiometric sensors, contactless sensors are meanwhile in demand. Preh has already been integrating Hall-based technology into different product solutions for 10 years. Likewise for the throttle flap of the Coyote motor, the Hall-based contactless measurement principle was integrated by Preh as a redundant laid-out system. This supplies two separate independent output signals, and by optimal positioning of the Hall ICs attains a very high signal accuracy. The sensor system meets the highest thermal requirements in a temperature range from -58°C to +160°C and also fulfills the stringent requirements for the tightness demanded.

"This product demonstrates that we can realize a economical product with high reliability in the long run by a combination of different Preh competencies: from the plastics engineering and the connection technique to the design of the sensors," says Dr. Hans Michael Schmitt, head of Preh's sensor development department.

Thanks to Preh's technology, a separate processing step with preliminary overmolding of the metallic contacts is no longer necessary. The contacts are molded in only one step, with the manufacture of the sensor housing. Also, Preh guarantees the traceability of all sensor components.

SOURCE: Preh