Le Mans Prototypes

[incontrolsteve]

Here are the two Rebellion Racing LMP1 Prototypes. V10, 5.5 litre, 700 Hp (through 2 x 33.5mm restrictors). They utilise Motec engine management, ACL Data Logging, 4 x VIM's, PDM32 and PDM16 providing dual starter and battery capability,MDD/SLM Steering wheel and Motec Telemetry. They are competing in the Le Mans Series, and #13 currently lies second in the championship behind the works #7 Audi-Diesel. Next outing is the Le Mans 24 hours on 12-13 June. Next Le Mans Series Championship round is at Portimao in Portugal on 14 July. The cars are prepared in Surrey, England, although are entered under a Swiss banner in deference to the team owners. Engine's are Judd V10, 5.5 litre. All of the Motec systems and vehicle electronics were prepared by Incontrol Engineering in UK, a Motec distributor and engineering consultancy. For more information on the cars visit www.rebellion-racing.com

[JamieA]

very impressive Steve... Ill actually be there this year, so Ill certainly keep an eye on them, I hope that they do well.

regards

Jamie

[Martin]

PDM32 and PDM16 providing dual starter and battery capability,

Steve,


Impressive!
What do you mean with the above quoted statement?

[incontrolsteve]

Hi Martin

The dual battery and starter system allows the car to run a normal single battery, but for starting a second battery is switched in to allow for faster cranking options, and also runs 2 starter motors for the same reason, this also allows the car to be started in gear in case of a clutch failure. The Le Mans regulations enforce that you can only start the car from onbaord and without a jump battery, so this system ensures that the starter systems are, as far as possible, always in prime condition. The second battery can also be used in case of a primary battery failure, or alternator failure. We managed to run for almost 3 hours after an alternator failure in a 6 hour race, which allowed us to finish the race without any unscheduled pitstops or servicing which would have affected the finishing position.

[Martin]

Do you control solenoids with the PDM to switch the battery positives to alternator?


Ive had to do this on a Bosch MS15 ECU installation to have it go through its run down function of writing data from the workpage to the reference page. The ECU then tells the PDM to shut it down and the PDM drops the solenoid.