Haptic control device with a magnetorheological braking device

A haptic operating device comprising:

• a magnetorheological braking device having a stationary holder and at least two braking components, one of the two braking components being non-rotatably connected to the holder and the two brake components being continuously rotatable relative to one another about an axis of rotation;
• a first brake component of the at least two braking components extending along the axis of rotation and having a core made of a magnetically conductive material;
• a second brake component of the at least two braking components having a casing part extending around the first brake component;
• at least three braking gap sections, being circumferential and at least axially spaced apart, disposed between the first and second brake components, the at least three braking gap sections being at least partially filled with a magnetorheological medium;
• and
• a first braking gap section of said at least three braking gap sections, a second braking gap section of said at least three braking gap sections and a third braking gap section of said at least three braking gap sections being arranged axially between said first braking gap section and said second braking gap section;
• and
• said first braking gap section having a first electrical coil, the second braking gap section is associated with a separately controllable second electrical coil, and said third braking gap section being formed by at least one ring contour which is located between the casing part and the core;
• and
• the first electrical coil being arranged axially between the first braking gap section and the ring contour, and the second electrical coil being arranged axially between the ring contour and the second braking gap section.

A haptic operating device comprising:

• a magnetorheological braking device having a stationary holder and at least two braking components, one of the two braking components being non-rotatably connected to the holder and the two brake components being continuously rotatable relative to one another about an axis of rotation;
• a first brake component of the at least two braking components extending along the axis of rotation and having a core made of a magnetically conductive material;
• a second brake component of the at least two braking components having a casing part extending around the first brake component;
• at least three braking gap section, being circumferential and at least axially spaced apart, disposed between the first and second brake components, the at least three braking gap sections being at least partially filled with a magnetorheological medium;
• and
• a first braking gap section of said at least three braking gap sections, a second braking gap section of said at least three braking gap sections and a third braking gap section of said at least three braking gap sections being arranged axially between said first braking gap section and said second braking gap section;
• said first braking gap section having a first electrical coil and the second braking gap section is associated with a separately controllable second electrical coil;
• and
• a disk contour being arranged between the casing part and the core on at least one braking gap section, the disk contour being a separate disk body or formed in one piece with the core, and the disk contour being a disk pack with a plurality of disk plates, and at least one disk plate being a stamped part.

A haptic operating device comprising:

• a magnetorheological braking device having a stationary holder and at least two braking components, one of the two braking components being non-rotatably connected to the holder and the two brake components being continuously rotatable relative to one another about an axis of rotation;
• a first brake component of the at least two braking components extending along the axis of rotation and having a core made of a magnetically conductive material;
• a second brake component of the at least two braking components having a casing part extending around the first brake component;
• at least three braking gap sections, being circumferential and at least axially spaced apart, disposed between the first and second brake components, the at least three braking gap sections being at least partially filled with a magnetorheological medium;
• and
• a first braking gap section of said at least three braking gap sections, a second braking gap section of said at least three braking gap sections and a third braking gap section of said at least three braking gap sections being arranged axially between said first braking gap section and said second braking gap section;
• said first braking gap section having a first electrical coil and the second braking gap section is associated with a separately controllable second electrical coil;
• and
• a plurality of rolling elements being arranged on a circumference of the core on at least one braking gap section, a radial clearance for said rolling element between the casing part and the core in the second braking gap section being greater than a gap height in the first braking gap section and/or third braking gap section.

A haptic operating device comprising:

• a magnetorheological braking device having a stationary holder and at least two braking components, one of the two braking components being non-rotatably connected to the holder and the two brake components being continuously rotatable relative to one another about an axis of rotation;
• a first brake component of the at least two braking components extending along the axis of rotation and having a core made of a magnetically conductive material;
• a second brake component of the at least two braking components having a casing part extending around the first brake component;
• at least three braking gap sections, being circumferential and at least axially spaced apart, disposed between the first and second brake components, the at least three braking gap sections being at least partially filled with a magnetorheological medium;
• and
• a first braking gap section of said at least three braking gap sections, a second braking gap section of said at least three braking gap sections and a third braking gap section of said at least three braking gap sections being arranged axially between said first braking gap section and said second braking gap section;
• said first braking gap section having a first electrical coil and the second braking gap section is associated with a separately controllable second electrical coil;
• and
• a plurality of rolling elements being arranged on a circumference of the core on at least one braking gap section, the radial free space for a rolling element in the second braking gap section being more than twice as large as the gap height in the first braking gap section and/or in the third braking gap section.

A method for haptic control of a haptic operating device, the method comprising:

• providing a haptic operating device having,
• a magnetorheological braking device having a stationary holder and at least two braking components, one of the two braking components being non-rotatably connected to the holder and the two brake components being continuously rotatable relative to one another about an axis of rotation,
• a first brake component of the at least two braking components extending along the axis of rotation and having a core made of a magnetically conductive material,
• a second brake component of the at least two braking components having a casing part extending around the first brake component,
• at least three braking gap sections, being circumferential and at least axially spaced apart, disposed between the first and second brake components, the at least three braking gap sections being at least partially filled with a magnetorheological medium,
• a first braking gap section of said at least three braking gap sections, a second braking gap section of said at least three braking gap sections and a third braking gap section of said at least three braking gap sections being arranged axially between said first braking gap section and said second braking gap section, and
• said first braking gap section having a first electrical coil and the second braking gap section is associated with a separately controllable second electrical coil;
• generating, via the first electrical coil, a controlled magnetic field in the first and the third braking gap section;
• and
• generating an independently controlled magnetic field, via a second electrical coil, in the second braking gap section and the third braking gap section, wherein the generated braking effects of different strength depending on a speed of rotation of the casing part.