Operating unit for a vehicle
An infotainment system having an operating element for a vehicle is disclosed. The operating element is mounted in a spring-elastic manner with springs on and/or in a housing along a vertical axis of movement. One or more sensors for detecting an actuating movement of the operating element can also be included. The operating unit can further have an actuator arranged in and/or on the housing for feedback movement of the operator control element. Torques acting at a center of mass of the operating element as a result of the return spring elements can cancel one another out, with the result that during the feedback movement of the operating element along the axis of effective movement of the drive element of the actuator said operating element does not additionally rotate or tilt.
1. An operating unit for a vehicle, particularly an infotainment system for control of diverse vehicle components, comprising
a housing having a front side,
an operating element arranged on the front side of the housing and comprising an operating interface,
wherein the operating element is mounted in a spring-elastic manner by means of return springs on and/or in the housing along a vertical axis of movement extending substantially orthogonally with respect to the operating surface and along a lateral axis of movement extending substantially transversely with respect to the vertical axis of movement,
at least one sensor for detecting an actuating movement of the operating element in the direction of the vertical axis of movement,
an actuator, arranged in and/or on the housing, for feedback movement of the operating element at least also in the lateral axis of movement when an actuation movement of the operating element is detected, wherein the actuator has an electrically activated drive element which is mechanically coupled to the operating element and can be moved forward and backward along an axis of effective movement, and
an evaluating and control unit which is connected to the sensor and the actuator,
wherein the return springs have resultant spring effect axes which extend parallel to the axis of effective movement of the actuator,
wherein the spring effect axes of the return springs, when viewed in the vertical plane in which the axis of effective movement of the actuator extends and/or in which the center of mass of the operating element or of the movable partial system including inter alia the operating element and the drive element, coupled thereto, of the actuator is situated, extend on both sides of the axis of effective movement of the actuator at a first distance and respectively a second distance to the axis of effective movement of the actuator, and
wherein the dimensioning of the return springs with respect to their spring forces and the dimensioning of the first and the second distance are selected to substantially compensate for the moments of rotation acting as a result of the return springs in the center of mass of the operating element or of the movable partial system.
2. The operating unit according to claim 1 , wherein the spring effect axes of the return springs, when viewed in an oblique plane which extends vertically to the vertical plane and in which the axis of effective movement of the actuator extends and/or in which the center of mass of the operating element or of the movable partial system is situated, extends on both sides of the axis of effective movement of the actuator at a third distance and respectively a fourth distance to the axis of effective movement of the actuator, and wherein the dimensioning of the return springs with respect to their spring forces and the dimensioning of the third and the fourth distance are selected to substantially compensate for the moments of rotation acting as a result of the return springs in the center of mass of the operating element or of the movable partial system.
3. The operating unit according to claim 1 , wherein the center of mass of the operating element or of the movable partial system is situated on the axis of effective movement of the drive element of the actuator.
4. The operating unit according to claim 2 , wherein the center of mass of the operating element or of the movable partial system is situated on the axis of effective movement of the drive element of the actuator.
5. The operating unit according to claim 1 , wherein the axis of lateral movement of the operating element and the axis of effective movement of the drive element of the actuator are situated in a common vertical plane extending substantially orthogonally to the operating surface.
6. The operating unit according to claim 5 , wherein the housing below the operating element comprises an installation space, and wherein the actuator, for obtaining the smallest possible angle between the axis of effective movement of the drive element of the actuator and the axis of lateral movement of the operating element, is arranged as closely below the operating element as possible with regard to the installation space and/or as far away from the center of mass of the operating element as possible with regard to the installation space.
7. The operating unit according to claim 1 , wherein the spring effect axes are arranged on the axis of lateral movement or on the axis of effective movement of the drive element of the actuator, or in a plane that is substantially orthogonal to a vertical plane in which the axis of effective movement of the drive element of the actuator and the axis of lateral movement of the operating element are situated, and symmetrically to the axis of lateral movement.
8. The operating unit according to claim 1 , wherein the moments of rotation acting as a result of the return springs in the center of mass of the operating element or of the partial system will neutralize each other so that the operating element during its feedback movement along the axis of effective movement of the drive element of the actuator will not additionally twist or tilt.