US 12,264,944 B2
System for measuring the rotation of a vehicle throttle knob
Elio Ivano Bergamini, Monza (IT); and Luca Lamparelli, Carate Brianza (IT)
Assigned to DOMINO S.R.L., Sirtori (IT)
Filed by DOMINO S.R.L., Sirtori (IT)
Filed on Feb. 10, 2023, as Appl. No. 18/167,494.
Claims priority of application No. 102022000002654 (IT), filed on Feb. 14, 2022.
Prior Publication US 2023/0288228 A1, Sep. 14, 2023
Int. Cl. G01D 5/14 (2006.01); B62J 45/413 (2020.01); B62K 23/04 (2006.01); G01B 7/30 (2006.01)
CPC G01D 5/145 (2013.01) [B62J 45/413 (2020.02); G01B 7/30 (2013.01); B62K 23/04 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A system for measuring the rotation of a throttle knob of a vehicle such as a motorcycle, a snowmobile, a personal watercraft or the like, said knob being associated with a vehicle handlebar and being rotary around a longitudinal axis (W) thereof, such rotation occurring at a fixed body, the knob carrying a permanent magnet rotating with the knob, the angular position of the permanent magnet being detected by a sensor integrally joined with said fixed body and suitable to detect the magnetic flux generated by said permanent magnet, said magnet comprising two sectors (N, S) defined by the opposite polarities thereof, said sectors (N, S) having dimensions different from each other so that the magnet has asymmetric polarities, wherein said permanent magnet has an arched circular segment shape, and is arranged at a side of the longitudinal axis (W) of the knob; and
wherein in a rotation arc of the knob around the longitudinal axis (W) thereof, a first polarity (N) of said circular segment magnet has an amplitude of between 65° and 75° and the second polarity (S) has an amplitude of between 35° and 45°.