US 11,985,918 B2
Obstacle detection and field mapping for a work vehicle
Austin J. Karst, Ottumwa, IA (US)
Assigned to DEERE & COMPANY, Moline, IL (US)
Filed by DEERE & COMPANY, Moline, IL (US)
Filed on Aug. 31, 2020, as Appl. No. 17/008,300.
Prior Publication US 2022/0061211 A1, Mar. 3, 2022
Int. Cl. A01D 34/00 (2006.01); A01D 34/04 (2006.01); A01D 34/24 (2006.01); F15B 15/14 (2006.01); G01C 21/00 (2006.01)
CPC A01D 34/008 (2013.01) [A01D 34/04 (2013.01); A01D 34/246 (2013.01); G01C 21/3826 (2020.08); F15B 15/14 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A work machine comprising:
a chassis;
a work implement movably coupled to the chassis, the work implement configured to perform a field-engaging function;
a hydraulic actuator coupled to the work implement and configured to adjust a position of the work implement relative to a ground surface;
a controller in communication with a sensor unit and a communication module, the controller configured to
monitor a location of the work machine via the communication module,
at least one of:
receive a signal from the sensor unit indicative of a load acting on the hydraulic actuator, determine whether the load exceeds an acceptable load range, and in response to the load exceeding the acceptable load range, identify an event,
or
receive a signal from the sensor unit indicative of an acceleration of the work implement, determine whether the acceleration of the work implement exceeds an acceptable acceleration range, and in response to the acceleration of the work implement exceeding the acceptable acceleration range, identify an event,
assign a location to the event, and
store the event and the assigned location in a field map database.