US 12,118,835 B2
Diagnostic systems and methods of a continuously variable transmission
Jonathon P. Graus, Stacy, MN (US); Bruce E. Herrala, Monticello, MN (US); Amery D. Kuhl, North Branch, MN (US); Karl J. Grajkowski, Hudson, WI (US); Ryan D. Carlson, Blaine, MN (US); and John F. Kallis, Roseau, MN (US)
Assigned to Polaris Industries Inc., Medina, MN (US)
Filed by Polaris Industries Inc., Medina, MN (US)
Filed on Aug. 26, 2022, as Appl. No. 17/896,398.
Application 16/838,602 is a division of application No. 15/876,343, filed on Jan. 22, 2018, granted, now 10,672,207, issued on Jun. 2, 2020.
Application 17/896,398 is a continuation of application No. 16/838,602, filed on Apr. 2, 2020, granted, now 11,430,272.
Claims priority of provisional application 62/448,875, filed on Jan. 20, 2017.
Prior Publication US 2022/0415102 A1, Dec. 29, 2022
Int. Cl. G07C 5/08 (2006.01); B60W 50/02 (2012.01); B60W 50/14 (2020.01); F02D 41/02 (2006.01); F16H 57/01 (2012.01); F16H 61/12 (2010.01); F16H 61/662 (2006.01); F16H 63/50 (2006.01); F16H 9/18 (2006.01)
CPC G07C 5/0808 (2013.01) [B60W 50/0205 (2013.01); B60W 50/14 (2013.01); F02D 41/022 (2013.01); F16H 57/01 (2013.01); F16H 61/12 (2013.01); F16H 61/662 (2013.01); F16H 63/50 (2013.01); G07C 5/0825 (2013.01); B60W 2510/0652 (2013.01); F16H 9/18 (2013.01); F16H 2057/014 (2013.01); F16H 2061/1208 (2013.01); F16H 2061/6629 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for estimating wear of a drive belt of a continuously variable transmission (CVT) provided in a vehicle, the method comprising:
determining a first belt wear-affecting factor based on at least one CVT operating parameter of the vehicle, the at least one CVT operating parameter of the vehicle including a belt load-representative parameter;
determining a second belt wear-affecting factor based on at least one engine operating parameter of the vehicle;
applying the first and second wear-affecting factors to a belt life-representative parameter to obtain an adjusted belt life-representative parameter; and
adjusting a total belt life-representative parameter based on the adjusted belt life-representative parameter to obtain an updated total belt life-representative parameter.