JPH0224034U - - Google Patents
Info
- Publication number
- JPH0224034U JPH0224034U JP10333288U JP10333288U JPH0224034U JP H0224034 U JPH0224034 U JP H0224034U JP 10333288 U JP10333288 U JP 10333288U JP 10333288 U JP10333288 U JP 10333288U JP H0224034 U JPH0224034 U JP H0224034U
- Authority
- JP
- Japan
- Prior art keywords
- control amount
- fan control
- engine
- fan
- rotational speed
- 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 claims description 12
- 239000000498 cooling water Substances 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims 3
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Description
第１図は本考案による回転速度制御装置を備え
た液圧駆動式冷却フアン装置の一つの実施例を示
す概略構成図、第２図は本考案による冷却フアン
の回転速度制御装置の一つ実施例を示すブロツク
線図、第３図乃至第４図は本考案による冷却フア
ンの回転速度制御装置のフアン制御特性を示すグ
ラフ、第５図は本考案による冷却フアンの回転速
度制御装置の制御要領を示すフローチヤートであ
る。
１０……冷却フアン、１２……機関冷却用ラジ
エータ、１６……液圧モータ、１８……作動液体
入口、２０……導管、２２……流量制御弁、２４
……作動液体出口、２６……導管、２８……リザ
ーブタンク、３０……ポンプ、３２……導管、３
４……ベルト式伝動装置、３６……内燃機関、４
０……制御装置、４２……水温センサ、４４……
機関回転数センサ、５０……冷却水温度対応フア
ン制御量決定手段、５２……回転数対応フアン決
定手段、５４……最終フアン制御量決定手段。
Fig. 1 is a schematic configuration diagram showing one embodiment of a hydraulically driven cooling fan device equipped with a rotation speed control device according to the present invention, and Fig. 2 is an embodiment of the rotation speed control device for a cooling fan according to the present invention. A block diagram showing an example, FIGS. 3 to 4 are graphs showing fan control characteristics of the cooling fan rotation speed control device according to the present invention, and FIG. 5 is a control procedure for the cooling fan rotation speed control device according to the present invention. This is a flowchart showing the following. 10... Cooling fan, 12... Engine cooling radiator, 16... Hydraulic motor, 18... Working liquid inlet, 20... Conduit, 22... Flow rate control valve, 24
... Working liquid outlet, 26 ... Conduit, 28 ... Reserve tank, 30 ... Pump, 32 ... Conduit, 3
4... Belt type transmission device, 36... Internal combustion engine, 4
0...Control device, 42...Water temperature sensor, 44...
Engine rotation speed sensor, 50... Cooling water temperature corresponding fan control amount determining means, 52... Rotation speed corresponding fan determining means, 54... Final fan control amount determining means.
Claims (1)
より駆動されるポンプより作動液体を液圧モータ
に供給され、前記液圧モータに供給される作動液
体の流量に応じて回転速度を制御される液圧駆動
式内燃機関用冷却フアンの回転速度制御装置に於
て、機関冷却用の冷却水の温度を検出する冷却水
温度検出手段と、内燃機関の機関回転数を検出す
る機関回転数検出手段と、冷却水温度の上昇に応
じて冷却フアン回転速度が増大すべくフアン制御
量を決定する冷却水温度対応フアン制御量決定手
段と、機関回転数に応じてフアン制御量を決定す
る機関回転数対応フアン制御量決定手段と、前記
冷却水温度対応フアン制御量決定手段により決定
されたフアン制御量と前記機関回転数対応フアン
制御量決定手段により決定されたフアン制御量と
のうち冷却フアン回転速度が小さくなるほうのフ
アン制御量に基いて冷却フアンの回転速度を決定
する最終フアン制御量決定手段と、前記最終フア
ン制御量決定手段により決定されたフアン制御量
に基いて前記液圧モータへ供給する作動液体を制
御する流量制御手段とを有し、前記機関回転数対
応フアン制御量決定手段は冷却フアン回転速度が
機関低回転数域に於て小さく機関中回転数域に於
て大きく機関高回転数域に於て小さくなるようフ
アン制御量を決定するよう構成されていることを
特徴とする回転速度制御装置。 A hydraulic motor in which working fluid is supplied to a hydraulic motor from a pump drivingly connected to an output shaft of an internal combustion engine and driven by the internal combustion engine, and whose rotational speed is controlled according to the flow rate of the working fluid supplied to the hydraulic motor. A rotation speed control device for a pressure-driven cooling fan for an internal combustion engine includes a cooling water temperature detection means for detecting the temperature of cooling water for cooling the engine, an engine rotation speed detection means for detecting the engine rotation speed of the internal combustion engine. , cooling water temperature corresponding fan control amount determining means that determines the fan control amount so that the cooling fan rotation speed increases in accordance with the increase in the cooling water temperature; and engine speed corresponding determining means that determines the fan control amount according to the engine rotation speed. The cooling fan rotation speed is determined by the fan control amount determination means, the fan control amount determined by the cooling water temperature corresponding fan control amount determination means, and the fan control amount determined by the engine rotation speed corresponding fan control amount determination means. final fan control amount determining means for determining the rotational speed of the cooling fan based on the smaller fan control amount; and supplying to the hydraulic motor based on the fan control amount determined by the final fan control amount determining means. and a flow rate control means for controlling the working fluid, and the fan control amount determining means corresponding to the engine rotational speed is configured such that the cooling fan rotational speed is small in a low engine rotational speed region, large in a medium engine rotational speed region, and large in a high engine rotational speed region. 1. A rotational speed control device, characterized in that the rotational speed control device is configured to determine a fan control amount so as to be small in a range of 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10333288U JP2549448Y2 (en) | 1988-08-04 | 1988-08-04 | Rotary speed control device for cooling fan for hydraulically driven internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10333288U JP2549448Y2 (en) | 1988-08-04 | 1988-08-04 | Rotary speed control device for cooling fan for hydraulically driven internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0224034U true JPH0224034U (en) | 1990-02-16 |
| JP2549448Y2 JP2549448Y2 (en) | 1997-09-30 |
Family
ID=31334066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10333288U Expired - Fee Related JP2549448Y2 (en) | 1988-08-04 | 1988-08-04 | Rotary speed control device for cooling fan for hydraulically driven internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2549448Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114856792A (en) * | 2022-05-31 | 2022-08-05 | 东风商用车有限公司 | Fan rotating speed control method, device, equipment and readable storage medium |
-
1988
- 1988-08-04 JP JP10333288U patent/JP2549448Y2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114856792A (en) * | 2022-05-31 | 2022-08-05 | 东风商用车有限公司 | Fan rotating speed control method, device, equipment and readable storage medium |
| CN114856792B (en) * | 2022-05-31 | 2023-03-03 | 东风商用车有限公司 | Fan rotating speed control method, device, equipment and readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2549448Y2 (en) | 1997-09-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |