Apparatus for controlling electric pump

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9915259
SERIAL NO

13798293

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

In an apparatus for controlling an electric pump supplying operating oil to a driving system or the like of a vehicle, control satisfying both responsiveness and reduction in power consumption is performed even in a case in which an oil temperature sensor and a pump characteristic are abnormal. After starting of the electric pump, feedback control is performed in which a rotation number Nm of a driving motor is settled in a target rotation number Na set to satisfy predetermined performance. After satisfying a predetermined condition in which the motor rotation number Nm is in a stable state, motor current Im is settled in an indicated current Ip within a range of being equal to or less than a current limit value IL while the motor rotation number Nm is maintained equal to or greater than a required rotation number Np corresponding to the indicated current Ip.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
HITACHI AUTOMOTIVE SYSTEMS LTDHITACHINAKA-SHI

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Okamoto, Naoki Isesaki, JP 172 1637

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Sep 13, 2021
7.5 Year Payment $3600.00 $1800.00 $900.00 Sep 13, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Sep 13, 2029
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00