US 12,320,638 B2
Reduced offset error configuration for a rotary inductive sensor
Xiaofeng Huang, Chicago, IL (US); and Kevin Wolschlager, Elkhart, IN (US)
Assigned to CTS Corporation, Lisle, IL (US)
Filed by CTS Corporation, Lisle, IL (US)
Filed on Oct. 17, 2022, as Appl. No. 18/047,174.
Prior Publication US 2024/0125586 A1, Apr. 18, 2024
Int. Cl. G01B 7/30 (2006.01); B60K 23/02 (2006.01)
CPC G01B 7/30 (2013.01) [B60K 23/02 (2013.01); B60W 2420/506 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A vehicle pedal assembly comprising:
a pedal rotatable relative to a shaft; and
a rotary inductive position sensor including:
a rotary inductive sensor target rotatable in response to the rotation of the pedal, the rotary inductive sensor target including a plurality of lobes, and
an inductive sensor assembly including a printed circuit board (PCB) positioned opposite the rotary inductive sensor target, the inductive sensor assembly including a first inductive sensor circuit defined on the PCB, the first inductive sensor circuit including a first coil circuit including a first coil having a first electrical current in a first flow direction and a second coil circuit including a second coil having a second electrical current in a second flow direction opposite to the first flow direction,
wherein the first inductive sensor circuit is configured such that a rotation of the rotary inductive sensor target induces a change in the first electrical current and the second electrical current within the first coil and the second coil, and
wherein the rotary inductive sensor target is configured such that a first area of the PCB within a first quadrant of the rotary inductive sensor target is covered by a first subset of the plurality of lobes and a second area of the PCB opposite of the first area is uncovered, the second area being within a second quadrant of the rotary inductive sensor target diagonal from the first quadrant.