US 12,036,865 B2
Rotary control device
Rainer Haevescher, Stemwede (DE); and Artur Neumann, Kalletal (DE)
Assigned to SIGNATA GmbH, Diepholz (DE)
Appl. No. 16/624,247
Filed by ZF Friedrichshafen AG, Friedrichshafen (DE)
PCT Filed May 23, 2018, PCT No. PCT/EP2018/063550
§ 371(c)(1), (2) Date Dec. 18, 2019,
PCT Pub. No. WO2018/233973, PCT Pub. Date Dec. 27, 2018.
Claims priority of application No. 10 2017 210 442.2 (DE), filed on Jun. 21, 2017.
Prior Publication US 2021/0146779 A1, May 20, 2021
Int. Cl. B60K 37/06 (2006.01); B60K 35/00 (2006.01); B60K 35/10 (2024.01); G05G 1/015 (2008.04); G05G 1/04 (2006.01); G05G 5/03 (2008.04); G05G 5/04 (2006.01); G05G 5/05 (2006.01); G06F 3/01 (2006.01); G06F 3/038 (2013.01); G06F 3/0487 (2013.01); B60K 35/22 (2024.01)
CPC B60K 35/10 (2024.01) [B60K 35/00 (2013.01); G05G 1/015 (2013.01); G05G 1/04 (2013.01); G05G 5/03 (2013.01); G05G 5/04 (2013.01); G05G 5/05 (2013.01); G06F 3/016 (2013.01); G06F 3/0383 (2013.01); G06F 3/0487 (2013.01); B60K 35/22 (2024.01); B60K 2360/126 (2024.01); G05G 2505/00 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A rotary control device comprising:
a user interface surface configured to rotate with respect to a housing of the device around a rotational axis of the device;
a sensor unit configured to monitor at least one of an orientation or a rotational movement of the user interface surface with respect to the housing;
a processing unit configured to generate an output on a basis of sensor data from the sensor unit;
a communications interface configured to transmit control signals according to the output from the processing unit;
a magnetorheological actuator comprising:
a chamber containing magnetorheological fluid;
a rotational element that is mechanically connected to the user interface surface and comprising a member extending horizontally within the chamber such that the member contacts the magnetorheological fluid on a first surface of the member and a second surface of the member, wherein the first surface and second surface are substantially perpendicular to the axis of rotation; and
an assembly configured to at least one of generate or manipulate properties of a magnetic field acting on the magnetorheological fluid such that the magnetorheological actuator serves to modulate torque transmission between the user interface surface and the housing; and
a servo actuator that is separate from the magnetorheological actuator and that is_configured to apply torque to the user interface surface in accordance with governing signals output by the processing unit.