US 12,435,998 B2
Displacement sensor arrangement for determining the position of a body moving along a movement path in a vehicle
Stefan Kuntz, Flein (DE); and Jonathan Haaf, Untergruppenbach (DE)
Assigned to Robert Bosch GmbH, Stuttgart (DE)
Filed by Robert Bosch GmbH, Stuttgart (DE)
Filed on Jun. 5, 2023, as Appl. No. 18/329,389.
Claims priority of application No. 10 2022 207 282.0 (DE), filed on Jul. 18, 2022.
Prior Publication US 2024/0019271 A1, Jan. 18, 2024
Int. Cl. G01D 5/14 (2006.01); B60T 7/06 (2006.01); G01B 7/02 (2006.01)
CPC G01D 5/145 (2013.01) [B60T 7/06 (2013.01); G01B 7/02 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A displacement sensor arrangement for determining a current position of a moving body moving along a movement path in a vehicle, comprising:
a magnet configured to generate, at least over a path of the moving body, a magnetic field having at least two mutually perpendicular components, one of which is perpendicular to the movement path;
a magnetic angle sensor sensitive to at least two of the at least two mutually perpendicular components of the generated magnetic field, the magnetic angle sensor configured to span at least one measuring plane and to determine the current position of the moving body on the movement path as a function of respective value pairs of the at least two mutually perpendicular components; and
a flux density sensor configured to detect an instantaneous value of one of the at least two mutually perpendicular components and to compare it with a threshold value to determine a switching point,
wherein one of the magnet, the magnetic angle sensor, and the flux density sensor is configured to be connected to the moving body to move relative to another of the magnet, the magnetic angle sensor, and the flux density sensor, and
wherein the switching point is defined by a common alignment of the magnetic angle sensor and of the flux density sensor with respect to the movement path.