Cambustion Fast Gas Analyzers for Formula 1 Testing

The 1ms response time of the HFR500 makes it possible to measure cycle-by-cycle exhaust port HC content – even at high engine speeds.

This has been used by several F1 teams to study transient fuelling strategies, enabling optimisation of fuel delivery in an environment which is sometimes considered too harsh for standard exhaust gas oxygen sensors.

Data from Formula 1 applications is covered by strict confidentiality arrangements; the example data below is from the exhaust port of a PFI road vehicle engine at maximum RPM showing the effects of the speed limiting spark/fuel cuts.

At 7,000RPM, misfires are very clearly visible and current users of the fast FID for this application strive to reduce the amount of unburned HCs to maintain maximum power and best use of fuel.

Exhaust port hydrocarbon concentration during rev-limiter operation above 7,000 RPM

Some high speed transients were also recorded from the exhaust port of this engine (free, rapid accelerations and decelerations).  The effects of transient fuelling can also be seen:

Exhaust port hydrocarbon concentration during high speed throttle transients at 4 - 7,000 rpm

The HFR500 has been used successfully to study and optimise fuel and other control parameters in F1 engines operating as high as 19,000 rpm.

The NDIR500 has also been used by F1 teams to measure the transient EGR / residual gas fraction.

For more information, or to discuss a potential application, please contact Cambustion.