US 12,006,658 B2
Power system for a machine
Chad Koci, Washington, IL (US); Jay R. Steffen, Washington, IL (US); Fang Guo, Dunlap, IL (US); Richard W. Kruiswyk, Dunlap, IL (US); Gaurav Vasudeva, Dunlap, IL (US); Robert Michael McDavid, Dunlap, IL (US); and Timothy Adam Bazyn, Chilicothe, IL (US)
Assigned to Caterpillar Inc., Peoria, IL (US)
Filed by Caterpillar Inc., Peoria, IL (US)
Filed on Apr. 9, 2021, as Appl. No. 17/301,651.
Prior Publication US 2022/0325501 A1, Oct. 13, 2022
Int. Cl. E02F 9/20 (2006.01)
CPC E02F 9/2075 (2013.01) [E02F 9/2091 (2013.01); E02F 9/2095 (2013.01); E02F 9/202 (2013.01)] 20 Claims
OG exemplary drawing
 
16. A method, comprising:
receiving, by a controller of a power system, a request to provide power to operate a machine,
wherein the power system comprises a high-speed flywheel, a battery, a flywheel motor-generator unit (MGU), and a turbocharger, and
wherein a first rotational speed range of the flywheel MGU is less than a second rotational speed range of the high-speed flywheel;
determining, by the controller and based on the request, that one or more of the high-speed flywheel, the battery and the flywheel MGU, or the turbocharger are to provide the power; and
causing, by the controller, the one or more of the high-speed flywheel, the battery and the flywheel MGU, or the turbocharger to provide the power as:
supplemental power to power provided by an engine of the machine to operate the machine, or
replacement power when no power is provided by the engine to operate the machine.