US 12,168,486 B2
Steering holding determination device, steering control device, and steering device
Hirokazu Fujimoto, Hitachinaka (JP); Tatsuru Niihara, Hitachinaka (JP); Yoshinori Kohno, Hitachinaka (JP); Hiroki Sato, Hitachinaka (JP); Shigeharu Shibahata, Hitachinaka (JP); and Daisuke Tsuga, Hitachinaka (JP)
Assigned to Hitachi Astemo, Ltd., Hitachinaka (JP)
Filed by Hitachi Astemo, Ltd., Hitachinaka (JP)
Filed on May 19, 2022, as Appl. No. 17/748,295.
Application 17/748,295 is a continuation of application No. PCT/JP2019/048909, filed on Dec. 13, 2019.
Claims priority of application No. 2019-221578 (JP), filed on Dec. 6, 2019.
Prior Publication US 2022/0281520 A1, Sep. 8, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B62D 5/04 (2006.01); B62D 1/28 (2006.01); B62D 15/02 (2006.01)
CPC B62D 5/0481 (2013.01) [B62D 5/0421 (2013.01); B62D 15/025 (2013.01); B62D 1/286 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A steering holding determination device configured to determine whether a driver holds a steering wheel, the steering holding determination device comprising:
a processor, wherein
the processor is configured to:
calculate a predicted value of at least one of one or more state quantities related to steering of the steering wheel and one or more state quantities related to turning of a wheel; and
determine whether the driver holds the steering wheel with reference to the predicted value calculated by the processor, a variance of the predicted value, and an actual measured value corresponding to the predicted value or an updated value using the actual measured value.