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december 14, 2020 - Peugeot

PEUGEOT HYBRID4 500kW lion inside

Partners for 25 years, #peugeot.sport and #total have released the main technical characteristics of the powertrain of their Hypercar LMH for the FIA WORLD #endurance CHAMPIONSHIP (FIA WEC).

Their respective teams have pooled their experience and expertise in the fields of hybridization and world-class motor #racing to develop a powertrain (PEUGEOT HYBRID4 500KW) in compliance with the new FIA #WEC regulations.

The main features of the PEUGEOT HYBRID4 500KW are:

— hybrid technology, with a mid-rear, 2.6-litre, 500 kW (680 horsepower), twinturbo, V6, petrol internal combustion engine combined with a front-mounted 200 kW motor generator unit,

— a high-power-density battery co-developed jointly by #peugeot.sport, #total, and its subsidiary Saft,

— four-wheel drive transmission and a sequential seven-speed gearbox,

— smart powertrain and energy flow management, a key to high performance and developed under the direction of #francoiscoudrain, PEUGEOT Sport’s #WEC Program Powertrain Director.

INTERNAL COMBUSTION ENGINE 100% BY PEUGEOT SPORT

PEUGEOT Sport has leveraged its experience of #endurance #racing (V12 and V8 PEUGEOT 908s) and that of PSA Motorsport in the FIA World Rally Championship (four cylinders) to develop a new 2.6-litre, twin-turbo, 90-degree V6. Positioned behind the driver, this 500 kW / 680 hp power plant will tip the scales at 165kg and drive the rear wheels.

“The architecture of the PEUGEOT HYBRID4 500KW powertrain is the result of a highlydetailed brief shaped by the new FIA #WEC regulations,” notes #francoiscoudrain, PEUGEOT Sport’s #WEC Program Powertrain Director. “We initially considered a single turbo, but that would have prevented us from achieving our engine’s centre of gravity target. A twin-turbo V6 block offers the best trade-off between technology, weight, packaging of the engine’s ancillaries, reliability and performance.”

The robotised sequential seven-speed (plus reverse) gearbox will be controlled by steering-wheel-mounted paddle shifters, and the PEUGEOT Sport-developed brakeby-wire system will also be managed electronically. The driver will be able to adjust the level of engine-braking generated by the electric motor under deceleration and the force applied by the pads to the braking discs to achieve the optimum electric regenerative / hydraulic braking split. Optimal energy management, both under acceleration and during energy recovery (capped by the regulations at 200 kW), will consequently be key to the car’s performance and efficiency.

TOTAL-DEVELOPED LUBRICANTS

The cooling fluids and engine / gearbox lubricants will play an important role in the competitiveness of PEUGEOT Sport’s Hypercar which will use prototypes tailored by #total for intensive use and long life across a wide range of temperatures. #total has also developed special greases and oils that are evolutions of formula derived from its experience in motorsport. #total engineer will attend races as an integral part of the team, to take and analyse samples and to monitor the status of the car’s assemblies over time.

ELECTRIC MOTORSPORT INSIDE

The PEUGEOT Sport-conceived front-mounted 200 kW motor generator unit will drive the front wheels and benefits from the team’s experience of developing electric motors and management systems for production cars. This knowhow has been compounded by:

— PSA Motorsport’s expertise in the design and running of electrified systems in motorsport,

— the recent launch of the #peugeot.sport ENGINEERED line, plus the expertise of PEUGEOT and Groupe PSA in the fields of hybrid and full-electric mobility.

“The motor generator unit will be equipped with a lightweight, high-efficiency singlespeed transmission and a latest-generation inverter to transfer battery power to the motor,” says #francoiscoudrain. “It will have the capacity to use all the energy available in the battery instantly thanks to the powertrain’s energy management system strategies. PSA Motorsport’s experience of the WRC and Formula E will contribute to the development of the software employed to manage the computer and energy systems [braking energy recovery, power under acceleration, anti-lag system, reduced fuel-consumption].”

INNOVATIVE BATTERY CONCEPT DEVELOPED BY #total AND ITS SUBSIDIARY SAFT

The high-density, high-power and high-voltage battery (900 volts) was developed jointly by #peugeot.sport and Saft, a #total subsidiary. With over 10 years of experience in F1 and based on #peugeot.sport specifications, Saft’s engineers selected the best type of cells for the battery, which favours power over energy density, consistent with the needs of #endurance #racing. As one of the keys of the car performance, the battery will be completely integrated inside the car and in the powertrain’s energy-management process.


Further information in the press release to download