US 11,837,401 B2
Actuation system to achieve soft landing and the control method thereof
Ozkan Bebek, Istanbul (TR); Muhammad Sarmad Qureshi, Istanbul (TR); Mehmet Polat Kuntuz, Istanbul (TR); Ozgur Ertunc, Istanbul (TR); Ismail Hakki Savci, Istanbul (TR); and Tahsin Hacibekir, Istanbul (TR)
Assigned to OZYEGIN UNIVERSITESI, Istanbul (TR)
Appl. No. 17/293,048
Filed by OZYEGIN UNIVERSITESI, Istanbul (TR)
PCT Filed Nov. 12, 2018, PCT No. PCT/TR2018/050681
§ 371(c)(1), (2) Date May 12, 2021,
PCT Pub. No. WO2020/101580, PCT Pub. Date May 22, 2020.
Prior Publication US 2021/0398725 A1, Dec. 23, 2021
Int. Cl. H01F 7/18 (2006.01); H01F 7/06 (2006.01); H01F 7/08 (2006.01)
CPC H01F 7/18 (2013.01) [H01F 7/064 (2013.01); H01F 7/081 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An actuation system, comprising
an electromagnetic actuator, wherein the electromagnetic actuator comprises a body, at least one coil, and an armature to convert an electrical energy into a mechanical energy,
a control unit, wherein the control unit applies a voltage signal to the electromagnetic actuator on the at least one coil for an open loop control of the electromagnetic actuator to achieve a soft landing, wherein
a first portion of the voltage signal is applied to energize the at least one coil,
a second portion of the voltage signal is applied after the voltage signal is closed and an admittance time is finished to generate the soft landing of the armature (3) and,
the second portion of the voltage is applied for a period of time shorter than a period of application of the first portion of the voltage signal.