JPS5885523U - Hydraulic drive vehicle control circuit - Google Patents
Hydraulic drive vehicle control circuitInfo
- Publication number
- JPS5885523U JPS5885523U JP18168181U JP18168181U JPS5885523U JP S5885523 U JPS5885523 U JP S5885523U JP 18168181 U JP18168181 U JP 18168181U JP 18168181 U JP18168181 U JP 18168181U JP S5885523 U JPS5885523 U JP S5885523U
- Authority
- JP
- Japan
- Prior art keywords
- control circuit
- switching device
- set pressure
- reverse
- pilot pressure
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/4157—Control of braking, e.g. preventing pump over-speeding when motor acts as a pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motor Power Transmission Devices (AREA)
- Control Of Fluid Gearings (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図面は本考案の実施例を示す油圧回路図である。
1は油圧ポンプ、2は油圧モータ、3は前進側回路、4
は後進側回路、7a、7bはリリーフ弁、8a、 8b
はセット圧切換装置、9は前後進シグナル弁、10a、
10bはパイロット圧作用部、11は制御用ポンプ。The drawing is a hydraulic circuit diagram showing an embodiment of the present invention. 1 is a hydraulic pump, 2 is a hydraulic motor, 3 is a forward side circuit, 4
is the reverse side circuit, 7a, 7b are the relief valves, 8a, 8b
is a set pressure switching device, 9 is a forward/reverse signal valve, 10a,
10b is a pilot pressure acting part, and 11 is a control pump.
Claims (1)
回路4にて接続した油圧駆動車の制御回路において、上
記両回路のそれぞれに、パイロット圧にて作動するセッ
ト圧切換装置aa、abにてセット圧を高・低切換える
ことができるようにしたリリーフ弁7a、7bを接続し
、上記セット圧切換装置3a、 8bの各パイロット圧
作用部10a、10bと制御用ポンプ11との間に、前
後進切換装置と連動して切換わり、前進時には前進側の
セット圧切換装置8aに、また後進時に後進側のセット
圧切換装置8bのそれぞれのパイロット圧作用部10a
、10bにパイロット圧を選択的に供給する前後進シグ
ナル弁9を介装したことを特徴とする油圧駆動車の制御
回路。In a control circuit for a hydraulically driven vehicle in which a hydraulic pump 1 and a hydraulic motor 2 are connected by a forward circuit 3 and a reverse circuit 4, set pressure switching devices aa and ab operated by pilot pressure are installed in each of the two circuits. Relief valves 7a and 7b that can switch the set pressure between high and low are connected between each pilot pressure acting part 10a and 10b of the set pressure switching device 3a and 8b and the control pump 11. , is switched in conjunction with the forward/reverse switching device, and is applied to the set pressure switching device 8a on the forward side when moving forward, and the pilot pressure acting portion 10a of the set pressure switching device 8b on the reverse side when moving backward.
, 10b, a control circuit for a hydraulically driven vehicle is provided with a forward/reverse signal valve 9 for selectively supplying pilot pressure to the terminals 10b and 10b.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18168181U JPS5885523U (en) | 1981-12-08 | 1981-12-08 | Hydraulic drive vehicle control circuit |
GB08235016A GB2114272B (en) | 1981-12-08 | 1982-12-08 | Hydrostatic transmission |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18168181U JPS5885523U (en) | 1981-12-08 | 1981-12-08 | Hydraulic drive vehicle control circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5885523U true JPS5885523U (en) | 1983-06-10 |
Family
ID=16105009
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18168181U Pending JPS5885523U (en) | 1981-12-08 | 1981-12-08 | Hydraulic drive vehicle control circuit |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS5885523U (en) |
GB (1) | GB2114272B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4951466A (en) * | 1989-06-12 | 1990-08-28 | General Electric Company | Warm-up control for transmission hydrostatic unit |
-
1981
- 1981-12-08 JP JP18168181U patent/JPS5885523U/en active Pending
-
1982
- 1982-12-08 GB GB08235016A patent/GB2114272B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2114272B (en) | 1985-05-09 |
GB2114272A (en) | 1983-08-17 |
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