Throttle Pedal Position Sensor - F1 Racing Team

Throttle Pedal Position Sensor - F1 Racing Team

Introduction

Gill Sensors has developed a fully non-contact throttle pedal position sensor for a leading F1 race team. The sensor has been developed to add redundancy to an existing hall effect throttle pedal position sensor, improving reliability and removing all mechanical linkages from the application

The Challenge

The team required a sensor that could be retrofitted into the existing pedal assembly to avoid any disruption. The sensor also needed to offer a 0V analog output and CAN integration. This digital alternative offered additional accuracy and simplified wiring loom benefits.

Weight is always a critical factor when it comes to mechanical parts in Motorsport. Every component needs to be as lightweight as possible, therefore the customised sensor needed to be a compact and lightweight design.

f1 throttle pedal position sensor

The Solution

The throttle pedal position sensor designed by Gill is a fully non-contact sensor consisting of three machined PEEK plastic components joined with stainless fastenings, weighing just 19.4g. The sensor is thermally stable, completely solid-state and fully sealed against any fluids that it comes into contact with.

The sensor is attached to the pedal baseplate using two custom M3 titanium fasteners, which also serve as spacers for the existing hall effect device. Though mounted millimetres away, there is no interference between the sensors due to the nature of the induction technology used in the Gill device.

The pedal position is determined by mounting a trapezoidal metallic target, referred to as the activator, to the moving part of the pedal. This then passes over a series of coils mounted within the sensor. By alternately generating magnetic pulses in the coils and measuring differences in response from the activator, its position can be accurately determined with update speeds of 5kHz, though with this technology speeds of over 10kHz are possible.

throttle pedal position sensor

The Results

A unique throttle pedal position sensor which could meet the accuracy, mounting and weight specification of the F1 team was designed.The sensor is extremely compact and is an example of Gill’s ability to produce fully customised, high resolution, high speed inductive micro sensors.

Additional benefits include:

  • Sensor is Homologated by the FIA for official use in World Championships
  • High reliability in the tight, punishing environment
  • CAN output options for improved accuracy
  • Circular design allowing the pedal shaft to pass completely though the hole in the sensor


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