Caterpillar Inc.
VARIABLE SPEED DRIVE FOR AN ACCESSORY DRIVE IN A HYBRID POWER SYSTEM

Abstract:

A variable drive system to drive an accessory drive of a machine is disclosed. The variable drive system may include a first variable pulley to be mechanically coupled to the accessory drive and an engine output of an engine. The variable drive system may include a second variable pulley to be mechanically coupled to a flywheel. The variable drive system may include a drive element to rotate, according to a clutch system, about the first variable pulley and the second variable pulley to at least one of: drive the second variable pulley to charge the flywheel with kinetic energy or drive the first variable pulley via kinetic energy from the flywheel.