公开(公告)号：US11506726B2

公开(公告)日：2022-11-22

申请号：US16557656

申请日：2019-08-30

Applicant: DANFOSS POWER SOLUTIONS II TECHNOLOGY A/S

Inventor： Mayura Arun Madane ,  Nilesh Surase ,  Arjun Tr ,  Amogh Kank

IPC: H01F7/08 ,  F16K37/00 ,  G01R31/72 ,  H01F7/06 ,  F16K31/06

Abstract: A system and method for detecting the location of coil open and coil short faults. The method includes obtaining an instantaneous admittance signature of each solenoid coil, sending out a periodic test signal to each valve, obtaining a new admittance signature; and calculating the coil-open and coil-short faults.

公开(公告)号：US11243269B2

公开(公告)日：2022-02-08

申请号：US16557590

申请日：2019-08-30

Applicant: DANFOSS POWER SOLUTIONS II TECHNOLOGY A/S

Inventor： Mayura Arun Madane ,  Nilesh Surase ,  Prachi Zambare ,  Shruti Zapdekar ,  Samuel Lazarus ,  Anil Ghegade ,  Marco Bison ,  Ananda Pasala

IPC: G01R31/72 ,  G01R31/28 ,  F16K31/06 ,  H01F7/18

Abstract: The present disclosure relates to a system for monitoring a solenoid operated valve including at least one coil and at least one spool. The system compares a normalized current signature and a normalized current signature comparator to determine a spool fault condition.