Cars built to the LMDh ruleset that replaces the IMSA SportsCar Championship’s Daytona Prototype international class next year will be eligible to race in the World Endurance Championship’s Hypercar class against bespoke Le Mans Hypercars .
“The requirements are modest and the battery can be reasonably small, also because it has to be packaged within an LMP2 cockpit and there’s not a lot of space,” he says. “It’s an excellent compromise and from this point of view I think the Williams battery gets the job done.”Xtrac’s P1359 gearbox is a seven-speed transverse arrangement that counts the MGU as a fully integrated component and has a maximum power capability of 585kW.
Bosch supplies the motor generator unit, inverter and is also the integration manager for the entire hybrid system. This includes the brake-by-wire, which cannot be overlooked as manufacturers work out how to deploy the hybrid energy most effectively. Control will be shared by the ECU, developed by the manufacturers, and Bosch’s vehicle control unit – whose configuration, software and settings are not accessible by teams.
“Your lead times are much longer than what you are used to working with maybe five or six years ago,” he says, “but you just have to work that into your planning.”Leschiutta is in discussions with the organising bodies over how the equity model from convergence between LMDh and LMH manufacturers running bespoke hybrid systems will be reached.