US 11,767,929 B2
Assembly for sensor cleaning with solenoid
Segundo Baldovino, Novi, MI (US); Ashwin Arunmozhi, Canton, MI (US); Venkatesh Krishnan, Canton, MI (US); Charles Prain, Auburn Hills, MI (US); Michael Whitney, Auburn Hills, MI (US); William S. Smith, Auburn Hills, MI (US); Theophile Jullien, Auburn Hills, MI (US); Denis Thebault, Auburn Hills, MI (US); and Jean Baptiste Lahilaire, Auburn Hills, MI (US)
Assigned to Ford Global Technologies, LLC, Dearborn, MI (US); and Valeo North America, Inc., Auburn Hills, MI (US)
Filed by Ford Global Technologies, LLC, Dearborn, MI (US); and Valeo North America, Inc., Auburn Hills, MI (US)
Filed on Mar. 26, 2021, as Appl. No. 17/214,352.
Prior Publication US 2022/0307622 A1, Sep. 29, 2022
Int. Cl. F16K 37/00 (2006.01); G01L 1/22 (2006.01); B60S 1/56 (2006.01); G01L 5/1627 (2020.01); F16K 31/06 (2006.01); G01L 5/00 (2006.01); G01S 7/497 (2006.01)
CPC F16K 37/0041 (2013.01) [B60S 1/56 (2013.01); F16K 31/0675 (2013.01); F16K 37/00 (2013.01); G01L 1/22 (2013.01); G01L 5/0057 (2013.01); G01L 5/1627 (2020.01); G01S 7/497 (2013.01); G01S 2007/4977 (2013.01)] 15 Claims
OG exemplary drawing
 
12. A solenoid assembly, comprising:
a plunger movable between a first position and a second position;
a spring urging the plunger to the second position, the spring having a plurality of coils; and
four strain gages fixed to four adjacent coils of the plurality of coils of the spring, the four strain gages electrically connected in a Wheatstone bridge arrangement; and
wherein a strain detected by the four strain gages indicates whether the plunger is at the second position.