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*Front MGU (Aishin AW)
-TS050 has a front MGU inside the monocoque.
-The gear ratio is fixed, but there are two types: high-speed LM/Spa spec and the other.
-TS050 adopts SiC for power device.
-Cooling is oil-cooled for both gears and motors.
-2014 spec has an MGU below the differential, but the 2016 spec places more importance on aerodynamic performance than the center of gravity, and the differential is above the MGU.
*Rear MGU (Denso)
-2016 spec was fastened to the bell housing at 12 locations, but 2017 spec was tightened at 6 locations to reduce weight (Dozens of grams!).
-Cooling is oil-cooled, and the feed pump is mounted on the gearbox.
*Lithium ion battery
-In 2017, the maximum voltage was increased from 750 V to 815 V, and the operating temperature was increased from 60 degrees to 85 degrees.
-It has been operating at about 90 degrees since 2018.
-By reviewing the electrolyte, it became a cell that deteriorated only a few percent even after running 10,000 kilometers.
-Buemi says that capacitors use full boost or don't use them, but in batteries, there is a chance to use them 10 times per one Sarthe lap.
*Engine bench testing
-Higashi fuji labo conducts an evaluation test by simulating the rear MGU + engine bench and the front MGU bench in a separate room.
-The standard for engine durability tests is 10,000 km.
-In addition to the racing speed simulation test, the system was optimized by conducting 70 types of irregular situation simulations for 2018.
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