US 12,103,662 B2
Inceptor and method
Jason Howard Bean, Rochester (GB); and Justin Mark Dee, Rochester (GB)
Assigned to BAE SYSTEMS PLC, London (GB)
Appl. No. 17/625,953
Filed by BAE SYSTEMS plc, London (GB)
PCT Filed Jun. 18, 2020, PCT No. PCT/GB2020/051477
§ 371(c)(1), (2) Date Jan. 10, 2022,
PCT Pub. No. WO2021/005329, PCT Pub. Date Jan. 14, 2021.
Claims priority of application No. 1909962 (GB), filed on Jul. 11, 2019; and application No. 19195209 (EP), filed on Sep. 3, 2019.
Prior Publication US 2022/0242554 A1, Aug. 4, 2022
Int. Cl. B64C 13/10 (2006.01); B64C 13/04 (2006.01); G05G 1/015 (2008.04); G05G 9/047 (2006.01)
CPC B64C 13/10 (2013.01) [B64C 13/0421 (2018.01); G05G 1/015 (2013.01); G05G 2009/04766 (2013.01); G05G 2505/00 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method to detect a hands off status of a user input device, the method comprising:
obtaining, by a force sensor, a sensed force acting on the user input device;
filtering the sensed force, acting on the user input device, using a first lag filter to provide a first output, the first lag filter comprising a first lag time constant;
filtering the sensed force using a second lag filter, substantially in parallel with the first filter, to provide a second output, the second lag filter comprising a second lag time constant greater than the first lag time constant;
comparing with a first threshold value, in a first comparison, a magnitude of a difference between the first output and the second output;
comparing with a second threshold value, in a second comparison, a magnitude of the second output;
designating the user input device to have a hands off status based on the first comparison and the second comparison; and
providing, by a motor mechanism, an applied force to the user input device responsive to designating the user input device to have the hands off status.