McLaren and Micro-Epsilon team on F1 position sensor

Precision sensor manufacturer Micro-Epsilon has developed a new version of drive electronics for its EDS series of displacement sensors, aimed at Formula One throttle and turbocharger control applications.

Created in partnership with McLaren Applied Technologies, the custom-developed EDS sensor has a diameter of just 3mm (50% smaller than LVDTs with a similar measurement range), is manufactured from pressure-resistant stainless steel (up to 450bar), and can operate up to 175°C. It is also able to withstand extreme vibration and shock levels (up to 300g axial and 100g radial). The sensor uses a non-ferrous aluminium outer sleeve as its target, which can be easily integrated into the piston rod if required. This enables the sensor body to be a solid rod rather than a traditional LVDT style with a hollow sensor body and plunger, making it easier for OEMs to assemble. Chris Jones, Micro-Epsilon's managing director, commented: "We worked closely with McLaren, who developed the necessary interface electronics and software to enable our EDS sensor and hydraulic actuator to communicate with their engine control unit. "The result is a more elegant, more compact and robust solution for Formula One engines, with a very clean output signal."