US 12,467,533 B2
High-low shifting active torque management continuously variable transmission system
Bruce H. Younggren, Bemidji, MN (US); Jordan E. Fisk, Bemidji, MN (US); Michael Allen Mueller, Bemidji, MN (US); Brandon P. Lenk, Shevlin, MN (US); and Daniel James Fullum, Bagley, MN (US)
Assigned to TEAM Industries, Inc., Bagley, MN (US)
Filed by TEAM Industries, Inc., Bagley, MN (US)
Filed on Oct. 18, 2024, as Appl. No. 18/919,758.
Claims priority of provisional application 63/591,197, filed on Oct. 18, 2023.
Prior Publication US 2025/0129846 A1, Apr. 24, 2025
Int. Cl. F16H 61/662 (2006.01); F16H 37/02 (2006.01); F16H 59/02 (2006.01); F16H 59/14 (2006.01); F16H 61/66 (2006.01)
CPC F16H 61/66272 (2013.01) [F16H 37/022 (2013.01); F16H 59/02 (2013.01); F16H 59/14 (2013.01); F16H 2037/026 (2013.01); F16H 2059/0221 (2013.01); F16H 2059/148 (2013.01); F16H 2061/6618 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A high-low shifting active torque management continuously variable transmission system, the system comprising:
a continuously variable transmission (CVT) including a primary pulley and a secondary pulley, the primary pulley in operational communication with an engine to receive engine torque;
a high variable torque limiting clutch selectively coupling torque between the secondary pulley of the CVT and at least one drive axle of a vehicle when the vehicle is traveling in a high range, the high variable torque limiting clutch configured to dynamically adjust a slippage threshold of the high variable torque limiting clutch to be above a then current output torque of the CVT and below a then current clamping force generated by the primary pulley and the secondary pulley on a torque connecting endless looped member of the CVT when the high variable torque limiting clutch is activated; and
a low variable torque limiting clutch selectively coupling torque between the secondary pulley of the CVT and the at least one drive axle of the vehicle when the vehicle is traveling in a low range, the low variable range torque limiting clutch configured to dynamically adjust a slippage threshold of the low variable range torque limiting clutch to be above the then current output torque of the CVT and below the then current clamping force generated by the primary pulley and the secondary pulley on the torque connecting endless looped member of the CVT when the low variable range torque limiting clutch is activated.