Patent ID: 9550527
Date: 2017-01-24
CPC Classifications: A01B,A01C,B62D

Claim:
1. A steering control system for an agricultural machine having four wheels, the steering control system comprising: a first sensor in communication with a first wheel, the first sensor being configured to detect a turn angle of the first wheel; a second sensor in communication with a second wheel, the second sensor being configured to detect a turn angle of the second wheel, the second wheel being on an end of the agricultural machine opposite the first wheel in a direction of travel; and a control system operable to: (a) when a turn angle of the first wheel is determined to be greater than a threshold, adjust a turn angle of the second wheel to minimize an error between the turn angle of the first wheel detected by the first sensor and the turn angle of the second wheel detected by the second sensor; and (b) when a turn angle of the first wheel is determined to be less than the threshold, keep the second wheel in a substantially strait direction with respect to the agricultural machine.