7. Glossary

acycling :

Variations in the instantaneous torque delivered by the engine under different operating conditions. It depends on the number of cylinders in the engine, the time intervals between ignitions, the arrangement of the cylinders, the shape of the crankshaft and the ignition sequence adopted.

kinematic chain :

All the moving parts that transmit power from the engine to the receiver (the wheels). In the automotive industry, the powertrain includes the clutch, gearbox, differential and transmissions.

Double shock-absorbing flywheel (DVA) :

Flywheel consisting of two masses linked together by a spring (dual mass flywheel). One of the masses (primary mass) is integral with the crankshaft, the other (secondary mass) is integral with the transmission, the two being...