US 11,850,895 B2
Method for dynamically determining a tire longitudinal force
Florian Schott, Einhausen (DE); and Norbert Fritz, Ilvesheim (DE)
Assigned to DEERE & COMPANY, Moline, IL (US)
Filed by DEERE & COMPANY, Moline, IL (US)
Filed on Sep. 21, 2020, as Appl. No. 17/027,009.
Application 17/027,009 is a continuation of application No. PCT/EP2019/057848, filed on Mar. 28, 2019.
Claims priority of application No. 102018204893.2 (DE), filed on Mar. 29, 2018.
Prior Publication US 2021/0001673 A1, Jan. 7, 2021
Int. Cl. B60C 23/04 (2006.01); B60C 23/06 (2006.01); B60W 40/064 (2012.01); B60W 40/12 (2012.01); B60W 50/00 (2006.01)
CPC B60C 23/0488 (2013.01) [B60C 23/064 (2013.01); B60W 40/064 (2013.01); B60W 40/12 (2013.01); B60W 2050/0037 (2013.01); B60W 2422/70 (2013.01); B60W 2530/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for dynamically determining a tire longitudinal force, comprising:
determining a tire acceleration variable by an acceleration sensor arranged in a tire bead, where the variable is defined as an acceleration occurring within the tire bead;
determining a first time interval between a tire contact patch entry point and an acceleration vertex by a processor unit;
determining a second time interval between the acceleration vertex and a tire contact patch exit point by the processor unit; and
determining a magnitude or direction of a tire longitudinal force variable comprising a tire longitudinal force by the processor unit from a symmetry shift detected between the first and second time intervals.