JPH0448964B2 - - Google Patents
Info
- Publication number
- JPH0448964B2 JPH0448964B2 JP10656483A JP10656483A JPH0448964B2 JP H0448964 B2 JPH0448964 B2 JP H0448964B2 JP 10656483 A JP10656483 A JP 10656483A JP 10656483 A JP10656483 A JP 10656483A JP H0448964 B2 JPH0448964 B2 JP H0448964B2
- Authority
- JP
- Japan
- Prior art keywords
- fluid
- port
- signal
- orifice
- variable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000012530 fluid Substances 0.000 claims description 98
- 230000007935 neutral effect Effects 0.000 claims description 25
- 230000004044 response Effects 0.000 claims description 13
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 description 9
- 230000003068 static effect Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000001052 transient effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005206 flow analysis Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/09—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by means for actuating valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87169—Supply and exhaust
- Y10T137/87177—With bypass
- Y10T137/87185—Controlled by supply or exhaust valve
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
- Fluid-Pressure Circuits (AREA)
- Servomotors (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/388,378 US4620416A (en) | 1982-06-14 | 1982-06-14 | Load sensing system |
US388378 | 1982-06-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS596401A JPS596401A (ja) | 1984-01-13 |
JPH0448964B2 true JPH0448964B2 (US06330241-20011211-M00004.png) | 1992-08-10 |
Family
ID=23533870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58106564A Granted JPS596401A (ja) | 1982-06-14 | 1983-06-14 | 流体制御装置 |
Country Status (5)
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3507901A1 (de) * | 1985-03-06 | 1986-09-18 | Danfoss A/S, Nordborg | Steuergeraet fuer hydrostatische lenkeinrichtungen |
US4781219A (en) * | 1986-10-10 | 1988-11-01 | Eaton Corporation | Fluid controller and dampening fluid path |
EP0264613B1 (en) * | 1986-10-10 | 1994-03-02 | Eaton Corporation | Improved fluid controller and dampening fluid path |
DE3814508A1 (de) * | 1988-04-29 | 1989-11-09 | Danfoss As | Hydrostatische lenkeinrichtung |
US4804016A (en) * | 1988-06-09 | 1989-02-14 | Eaton Corporation | Fluid controller with improved pressure balancing |
US4862690A (en) * | 1988-10-06 | 1989-09-05 | Eaton Corporation | Steering control unit with both flow amplification and manual steering capability |
US4936094A (en) * | 1989-01-17 | 1990-06-26 | Eaton Corporation | Torque-generating steering device with load-sensing capability |
US5016672A (en) * | 1990-04-23 | 1991-05-21 | Eaton Corporation | Steering controller with integral parallel control |
DE4342933C2 (de) * | 1993-12-16 | 1995-10-19 | Danfoss As | Vorrichtung zum Steuern des einer hydrostatischen Lenkeinheit zuzuführenden Drucks |
DE4410693C2 (de) * | 1994-03-28 | 1996-05-23 | Hydraulik Nord Gmbh | Hydraulische Lenkeinrichtung mit Lastsignal |
DE19505592C1 (de) * | 1995-02-18 | 1996-04-18 | Hydraulik Nord Gmbh | Hydraulische Lenkeinrichtung mit Lastsignal |
US5620026A (en) * | 1995-03-17 | 1997-04-15 | Eaton Corporation | Fluid controller and improved backflow prevention therefor |
DE19537242C1 (de) * | 1995-10-06 | 1997-05-28 | Danfoss As | Prioritätsventil für ein hydraulisches Steuergerät |
DE19537241C1 (de) * | 1995-10-06 | 1997-05-28 | Danfoss As | Ventilanordnung für ein hydraulisches Steuergerät |
DE19546282C2 (de) * | 1995-12-12 | 1997-09-25 | Danfoss As | Hydraulische Lenkeinrichtung und Verfahren zum Lenken eines Fahrzeugs |
US5732789A (en) * | 1996-06-24 | 1998-03-31 | Eaton Corporation | Articulated vehicle steering with bogie feedback |
US5819532A (en) * | 1997-06-06 | 1998-10-13 | Eaton Corporation | Dynamic load signal fluid controller with instant on flow amplification |
US6491118B1 (en) * | 2000-11-20 | 2002-12-10 | Deere & Company | Hydrostatic system with charge flow monitoring |
US6782698B2 (en) | 2002-09-26 | 2004-08-31 | Eaton Corporation | Steering control unit with low null band load sensing boost |
US7610935B2 (en) * | 2005-06-10 | 2009-11-03 | Sauer-Danfoss Aps | Fluid controller |
US7490626B2 (en) * | 2005-10-07 | 2009-02-17 | Eaton Corporation | Steer valve with hydraulic vehicle position feedback |
US7451686B2 (en) * | 2006-08-25 | 2008-11-18 | Deere & Company | Fluid system with signal-mimicking device and associated method |
EP2610142B1 (en) | 2011-12-27 | 2014-03-05 | Sauer-Danfoss ApS | Hydraulic steering device |
EP2610137B1 (en) | 2011-12-28 | 2014-03-05 | Sauer-Danfoss ApS | Hydraulic steering device |
EP2610136B1 (en) | 2011-12-28 | 2014-01-22 | Sauer-Danfoss ApS | Hydraulic steering device |
EP2610140A1 (en) | 2011-12-28 | 2013-07-03 | Sauer-Danfoss ApS | Hydraulic device |
US9878737B2 (en) * | 2015-02-20 | 2018-01-30 | Caterpillar Inc. | Hydraulic steering control system |
CN104728196B (zh) * | 2015-03-18 | 2017-08-25 | 北京航空航天大学 | 负载敏感的电动静液作动器 |
CN104819176B (zh) * | 2015-03-18 | 2017-06-20 | 北京航空航天大学 | 基于开关阀和液控单向阀的负载敏感的电动静液作动器 |
CN104747515B (zh) * | 2015-03-18 | 2017-12-26 | 北京航空航天大学 | 基于梭阀调控的智能负载敏感的电动静液作动器 |
US10118637B2 (en) | 2016-07-08 | 2018-11-06 | Eaton Intelligent Power Limited | Load-sensing system |
DE102017109798B4 (de) * | 2017-05-08 | 2018-12-27 | Danfoss Power Solutions Aps | Hydraulische Lenkeinheit |
DE102017117149B3 (de) | 2017-07-28 | 2018-11-22 | Hydraulik Nord Fluidtechnik Gmbh & Co. Kg | Hydraulische Lenkeinrichtung mit Lastsignal |
DE102018125053B4 (de) * | 2018-10-10 | 2022-02-17 | Danfoss Power Solutions Aps | Hydraulische Lenkanordnung |
CN109058190B (zh) * | 2018-10-22 | 2019-10-29 | 北京航空航天大学 | 主动负载敏感电动静液作动器的负载敏感度的控制方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52112077A (en) * | 1976-03-15 | 1977-09-20 | Caterpillar Tractor Co | Unlimitedly variable orifice in use with nozzle control part |
JPS5316767U (US06330241-20011211-M00004.png) * | 1976-07-23 | 1978-02-13 | ||
JPS53134180A (en) * | 1977-04-28 | 1978-11-22 | Caterpillar Tractor Co | Hydraulic device for motor car |
JPS5621602B2 (US06330241-20011211-M00004.png) * | 1976-06-17 | 1981-05-20 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE25126E (en) * | 1958-11-25 | 1962-02-20 | Controller for fluid pressure operated devices | |
US3455210A (en) * | 1966-10-26 | 1969-07-15 | Eaton Yale & Towne | Adjustable,metered,directional flow control arrangement |
US3971216A (en) * | 1974-06-19 | 1976-07-27 | The Scott & Fetzer Company | Load responsive system with synthetic signal |
DE2553748C3 (de) * | 1975-11-29 | 1981-05-07 | Danfoss A/S, 6430 Nordborg | Hydraulische Steuereinrichtung, insbesondere für Fahrzeuglenkungen |
US4011721A (en) * | 1976-04-14 | 1977-03-15 | Eaton Corporation | Fluid control system utilizing pressure drop valve |
US4043419A (en) * | 1976-06-04 | 1977-08-23 | Eaton Corporation | Load sensing power steering system |
US4096883A (en) * | 1976-08-24 | 1978-06-27 | Eaton Corporation | Closed-center controller and neutral bypass arrangement therefor |
GB1565440A (en) * | 1977-01-24 | 1980-04-23 | Eaton Corp | Controller for fluid pressure operated devices |
JPS5621602U (US06330241-20011211-M00004.png) * | 1979-07-27 | 1981-02-26 |
-
1982
- 1982-06-14 US US06/388,378 patent/US4620416A/en not_active Expired - Lifetime
-
1983
- 1983-05-10 EP EP19830302623 patent/EP0096963B1/en not_active Expired
- 1983-05-10 DE DE8383302623T patent/DE3369101D1/de not_active Expired
- 1983-06-13 DK DK270883A patent/DK164693C/da not_active IP Right Cessation
- 1983-06-14 JP JP58106564A patent/JPS596401A/ja active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52112077A (en) * | 1976-03-15 | 1977-09-20 | Caterpillar Tractor Co | Unlimitedly variable orifice in use with nozzle control part |
JPS5621602B2 (US06330241-20011211-M00004.png) * | 1976-06-17 | 1981-05-20 | ||
JPS5316767U (US06330241-20011211-M00004.png) * | 1976-07-23 | 1978-02-13 | ||
JPS53134180A (en) * | 1977-04-28 | 1978-11-22 | Caterpillar Tractor Co | Hydraulic device for motor car |
Also Published As
Publication number | Publication date |
---|---|
DE3369101D1 (en) | 1987-02-19 |
EP0096963A3 (en) | 1985-01-09 |
JPS596401A (ja) | 1984-01-13 |
EP0096963B1 (en) | 1987-01-14 |
US4620416A (en) | 1986-11-04 |
DK270883A (da) | 1983-12-15 |
DK270883D0 (da) | 1983-06-13 |
DK164693C (da) | 1992-12-28 |
DK164693B (da) | 1992-08-03 |
EP0096963A2 (en) | 1983-12-28 |
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