Apparatus for controlling hydraulic pump for construction machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Feb 27, 2018
Grant Date -
Feb 18, 2016
app pub date -
Mar 3, 2014
filing date -
Mar 21, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The present disclosure relates to an apparatus for controlling a hydraulic pump for a construction machine. The apparatus for controlling the hydraulic pump for the construction machine according to the present disclosure includes: a hydraulic pump control device configured to generate first and second pump commands for controlling first and second hydraulic pumps so that the first and second hydraulic pumps generate pump torque corresponding to a request value; and a torque controller configured to generate first and second corrected pump commands, which are the corrected first and second pump commands, by a torque inclination map generated by reflecting a dynamic characteristic of an engine, and to provide the first and second corrected pump commands to the first and second hydraulic pumps.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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HD HYUNDAI INFRACORE CO LTD | 489 INJUNG-RO DONG-GU INCHEON 22502 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Cho, Young Sik | Gyeonggi-do, KR | 12 | 16 |
# of filed Patents : 12 Total Citations : 16 | |||
Jung, Woo Yong | Gyeonggi-do, KR | 16 | 46 |
# of filed Patents : 16 Total Citations : 46 |
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- F15B Class
- 0 % this patent is cited more than
- 7 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 27, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 27, 2029 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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 |
Full Text

Legal Events
Date | Code | Event | Description |
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Oct 21, 2024 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Oct 21, 2024 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Sep 13, 2024 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Sep 13, 2024 |
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Dec 17, 2019 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY year of fee payment: 4 |
Sep 13, 2016 | I | Issuance | |
Aug 24, 2016 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Aug 09, 2016 | ZAAA | NOTICE OF ALLOWANCE AND FEES DUE | free format text: ORIGINAL CODE: NOA |
Aug 09, 2016 | ZAAB | NOTICE OF ALLOWANCE MAILED | free format text: ORIGINAL CODE: MN/=. |
May 19, 2016 | P | Published | |
Mar 25, 2015 | F | Filing | |
Feb 26, 2015 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WU, MEI-LI;CHAUNG, HSO-CHI;KE, GUAN-MING;REEL/FRAME:035293/0248 Owner name: NATIONAL PINGTUNG UNIVERSITY OF SCIENCE AND TECHNO Effective Date: Feb 26, 2015 |
Nov 19, 2014 | PD | Priority Date |

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