JP2002340161A - Oil temperature control device - Google Patents
Oil temperature control deviceInfo
- Publication number
- JP2002340161A JP2002340161A JP2001150242A JP2001150242A JP2002340161A JP 2002340161 A JP2002340161 A JP 2002340161A JP 2001150242 A JP2001150242 A JP 2001150242A JP 2001150242 A JP2001150242 A JP 2001150242A JP 2002340161 A JP2002340161 A JP 2002340161A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- transmission
- heat exchanger
- cooling water
- engine cooling
- 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
Landscapes
- Control Of Transmission Device (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、エンジン冷却水と
被潤滑機のオイルとの熱交換を行う熱交換器を備えてい
る油温制御装置に関し、とくに被潤滑機オイル温度の過
上昇によるオイル劣化を防止する油温制御装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil temperature control device provided with a heat exchanger for exchanging heat between engine cooling water and oil of a machine to be lubricated. The present invention relates to an oil temperature control device for preventing deterioration.
【０００２】[0002]
【従来の技術】特許第２６６２１８７号公報は、ラジエ
ータとそのバイパス通路との合流部に電気的に加熱可能
な熱膨張要素を有したサーモ弁（以下、電子サーモとい
う）を備え、エンジン運転状態（車速、回転数、スロッ
トル開度、負荷状態）や周囲の状態（吸入空気温度、周
辺空気温度温度）およびその組み合わせによって、電子
サーモを稼働させ、エンジン冷却水の温度を多段に制御
できるようにしたパワートレーン冷却システムを開示し
ている。2. Description of the Related Art Japanese Patent No. 2662187 discloses a thermo-valve (hereinafter referred to as an electronic thermo) having an electrically heatable thermal expansion element at a junction of a radiator and a bypass passage thereof. Depending on the vehicle speed, rotation speed, throttle opening, load condition) and surrounding conditions (intake air temperature, ambient air temperature) and their combinations, the electronic thermostat can be operated and the temperature of the engine coolant can be controlled in multiple stages. A power train cooling system is disclosed.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、特許第
２６６２１８７号公報等の従来のパワートレーン冷却シ
ステムでは、エンジンや変速機等の被潤滑機のオイル温
度を電子サーモに作動条件の一つとして入力していない
ので、被潤滑機のオイル温度が過度に上昇する恐れがあ
る。その結果、エンジン冷却水経路に変速機熱交換器
（エンジン冷却水と変速機オイルとの間の熱交換を行う
熱交換器）を備えたパワートレーン冷却システムでは、
変速機オイルの高油温状態でエンジン冷却水を高温設定
した場合（渋滞走行時、エンジンは軽負荷だが、変速機
はスリップで高油温となる）、変速機の油温は従来シス
テム（通常のサーモバルブのシステム）時よりも高温と
なり、変速機オイルの劣化が促進する。本発明の目的
は、被潤滑機オイルが所定値よりも上昇して被潤滑機オ
イルが劣化することを抑制できる油温制御装置を提供す
ることにある。However, in a conventional power train cooling system such as disclosed in Japanese Patent No. 2662187, the oil temperature of a lubricated machine such as an engine or a transmission is input to an electronic thermo as one of operating conditions. Therefore, the oil temperature of the lubricated machine may rise excessively. As a result, in the power train cooling system including the transmission heat exchanger (the heat exchanger that performs heat exchange between the engine cooling water and the transmission oil) in the engine cooling water path,
If the engine cooling water is set to a high temperature while the transmission oil is at a high oil temperature (the engine will be lightly loaded during traffic congestion but the transmission will have a high oil temperature due to slippage), the oil temperature of the transmission will be the same as the conventional system (normal The temperature becomes higher than when the thermovalve system is used, and the deterioration of the transmission oil is accelerated. An object of the present invention is to provide an oil temperature control device capable of suppressing deterioration of lubricated machine oil due to the lubricated machine oil rising above a predetermined value.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成する本発
明はつぎの通りである。 （１） 被潤滑機へ供給されるオイルとエンジンを冷却
する冷媒との間で熱交換を行う熱交換器と、前記冷媒を
冷却するラジエータを備えた油温制御装置において、前
記被潤滑機のオイル温度に基づいて前記ラジエータを経
由し且つ前記ラジエータと前記熱交換器との間の冷媒流
量を制御する冷媒流量制御手段を設けたことを特徴とす
る油温制御装置。 （２） 前記冷媒流量制御手段は、前記ラジエータを通
る冷媒の流量と前記ラジエータを迂回するバイパス通路
を通る冷媒の流量を制御する流量制御弁であることを特
徴とする（１）記載の油温制御装置。 （３） 前記冷媒流量制御手段は、前記熱交換器への冷
媒流量を制御するポンプであることを特徴とする（１）
記載の油温制御装置。 （４） ラジエータを通る流量とバイパス通路を通る流
量とを多段に変える電子サーモバルブを備えたエンジン
冷却系と、エンジン冷却水と変速機のオイルとの熱交換
を行う変速機熱交換器を備えている油温制御装置であっ
て、前記電子サーモバルブの制御条件の一つに変速機の
オイルの温度を加え、変速機のオイルの温度が所定値よ
りも上昇した場合、前記電子サーモバルブをラジエータ
側流量を増加させるように制御して前記変速機熱交換器
を通るエンジン冷却水の温度をさげる油温制御装置。 （５） ラジエータを通る流量とバイパス通路を通る流
量とを変えるサーモバルブを備えたエンジン冷却系と、
エンジン冷却水と変速機のオイルとの熱交換を行う変速
機熱交換器を備えている油温制御装置であって、前記エ
ンジン冷却水回路部分にバルブを設けるかまたは前記変
速機熱交換器を設けたエンジン冷却水回路部分にアシス
トポンプを設け、変速機のオイルの温度が所定値よりも
上昇した場合、前記バルブを前記エンジン冷却水回路部
分の流れを絞るように制御するかまたは前記アシストポ
ンプを前記変速機熱交換器を設けたエンジン冷却水回路
部分の流れを増加させるように制御して、前記変速機熱
交換器を通るエンジン冷却水流量を増加させる油温制御
装置。 （６） ラジエータを通る流量とバイパス通路を通る流
量とを変える流量制御弁を備えたエンジン冷却系と、前
記バイパス通路に対して並列なエンジン冷却水回路部分
にエンジン冷却水と変速機のオイルとの熱交換を行う変
速機熱交換器を備えている油温制御装置であって、前記
流量制御弁の制御条件の一つに変速機のオイルの温度を
加え、変速機のオイルの温度が所定値よりも上昇した場
合、前記流量制御弁を前記バイパス通路を通るエンジン
冷却水の流れを絞るように制御して、前記変速機熱交換
器を通るエンジン冷却水流量を増加させる油温制御装
置。 （７） エンジン冷却水と変速機のオイルとの熱交換を
行う変速機熱交換器を備えている油温制御装置であっ
て、変速機油圧回路内に圧力調整バルブを設けるかまた
はオイル流量アシストポンプを設け、変速機のオイルの
温度が所定値よりも上昇した場合、前記圧力調整バルブ
を変速機熱交換器へのオイル経路の圧力を上げるように
制御するかまたは前記オイル流量アシストポンプを変速
機熱交換器へのオイル経路の流量を増加するように制御
して、前記変速機熱交換器を通るオイル流量を増加させ
る油温制御装置。The present invention to achieve the above object is as follows. (1) In an oil temperature control device including a heat exchanger for exchanging heat between oil supplied to a lubricated machine and a refrigerant for cooling an engine, and a radiator for cooling the refrigerant, An oil temperature control device comprising: a refrigerant flow control unit that controls a refrigerant flow between the radiator and the heat exchanger via the radiator based on an oil temperature. (2) The oil temperature according to (1), wherein the refrigerant flow rate control means is a flow rate control valve that controls a flow rate of the refrigerant passing through the radiator and a flow rate of the refrigerant passing through a bypass passage that bypasses the radiator. Control device. (3) The refrigerant flow control means is a pump for controlling a refrigerant flow to the heat exchanger (1).
An oil temperature control device as described above. (4) An engine cooling system provided with an electronic thermo valve for changing the flow rate through the radiator and the flow rate through the bypass passage in multiple stages, and a transmission heat exchanger for exchanging heat between engine cooling water and transmission oil. An oil temperature control device, wherein the temperature of the oil of the transmission is added to one of the control conditions of the electronic thermovalve, and when the temperature of the oil of the transmission rises above a predetermined value, the electronic thermovalve is controlled. An oil temperature control device for controlling the temperature of the engine cooling water passing through the transmission heat exchanger by controlling the radiator-side flow rate to increase. (5) an engine cooling system having a thermo valve for changing a flow rate through the radiator and a flow rate through the bypass passage;
An oil temperature control device including a transmission heat exchanger for performing heat exchange between engine cooling water and transmission oil, wherein a valve is provided in the engine cooling water circuit portion or the transmission heat exchanger is provided. An assist pump is provided in the provided engine cooling water circuit portion, and when the oil temperature of the transmission rises above a predetermined value, the valve is controlled to restrict the flow of the engine cooling water circuit portion or the assist pump is provided. An oil temperature control device for increasing the flow rate of the engine cooling water passing through the transmission heat exchanger by controlling the flow rate of the engine cooling water circuit portion provided with the transmission heat exchanger. (6) An engine cooling system having a flow control valve for changing a flow rate passing through the radiator and a flow rate passing through the bypass passage, and an engine cooling water circuit and a transmission oil are provided in an engine cooling water circuit portion parallel to the bypass passage. An oil temperature control device provided with a transmission heat exchanger that performs heat exchange of the transmission, wherein the oil temperature of the transmission is added to one of the control conditions of the flow control valve, and the oil temperature of the transmission is controlled to a predetermined value. An oil temperature control device that increases the flow rate of the engine coolant through the transmission heat exchanger by controlling the flow rate control valve so as to restrict the flow of the engine coolant through the bypass passage when the flow rate exceeds the value. (7) An oil temperature control device including a transmission heat exchanger for performing heat exchange between engine cooling water and transmission oil, wherein a pressure adjusting valve is provided in a transmission hydraulic circuit or an oil flow assist is provided. A pump is provided, and when the oil temperature of the transmission rises above a predetermined value, the pressure regulating valve is controlled to increase the pressure of the oil path to the transmission heat exchanger, or the oil flow assist pump is shifted. An oil temperature control device for increasing an oil flow rate through the transmission heat exchanger by controlling an oil flow rate to an oil heat exchanger to be increased.
【０００５】上記（１）〜（３）の油温制御装置では、
被潤滑機のオイルの温度が所定値よりも上昇した場合、
冷媒流量制御手段により、熱交換器でオイルの温度が下
げられ、被潤滑機のオイルの温度の過上昇が防止され、
オイル劣化の促進が抑制される。上記（４）の油温制御
装置では、電子サーモバルブの制御条件の一つに変速機
のオイルの温度を加え、変速機のオイルの温度が所定値
よりも上昇した場合、電子サーモバルブを、ラジエータ
側流量を増加させるように制御して、変速機熱交換器を
通るエンジン冷却水の温度をさげるので、変速機熱交換
器でオイルの温度が下げられ、変速機のオイルの温度の
過上昇が防止され、オイル劣化の促進が抑制される。上
記（５）の油温制御装置では、ヒータを設けたエンジン
冷却水回路部分にバルブを設けるか、または変速機熱交
換器を設けたエンジン冷却水回路部分にアシストポンプ
を設け、変速機のオイルの温度が所定値よりも上昇した
場合、バルブを、ヒータを設けたエンジン冷却水回路部
分の流れを絞るように制御するか、またはアシストポン
プを、変速機熱交換器を設けたエンジン冷却水回路部分
の流れを増加させるように制御して、変速機熱交換器を
通るエンジン冷却水流量を増加させるので、変速機熱交
換器でオイルの温度が下げられ、変速機のオイルの温度
の過上昇が防止され、オイル劣化の促進が抑制される。
上記（６）の油温制御装置では、流量制御弁の制御条件
の一つに変速機のオイルの温度を加え、変速機のオイル
の温度が所定値よりも上昇した場合、流量制御弁を、バ
イパス通路を通るエンジン冷却水の流れを絞るように制
御して、変速機熱交換器を通るエンジン冷却水流量を増
加させるので、変速機熱交換器でオイルの温度が下げら
れ、変速機のオイルの温度の過上昇が防止され、オイル
劣化の促進が抑制される。上記（７）の油温制御装置で
は、変速機油圧回路内に圧力調整バルブを設けるか、ま
たはオイル流量アシストポンプを設け、変速機のオイル
の温度が所定値よりも上昇した場合、圧力調整バルブを
変速機熱交換器へのオイル経路の圧力を上げるように制
御するか、またはオイル流量アシストポンプを変速機熱
交換器へのオイル経路の流量を増加するように制御し
て、変速機熱交換器を通るオイル流量を増加させるの
で、変速機熱交換器でオイルの温度が下げられ、変速機
のオイルの温度の過上昇が防止され、オイル劣化の促進
が抑制される。[0005] In the above oil temperature control devices (1) to (3),
If the oil temperature of the lubricated machine rises above a predetermined value,
By the refrigerant flow rate control means, the temperature of the oil is reduced in the heat exchanger, and the temperature of the oil in the lubricated machine is prevented from excessively rising
Acceleration of oil deterioration is suppressed. In the oil temperature control device of the above (4), the temperature of the oil of the transmission is added to one of the control conditions of the electronic thermo valve, and when the oil temperature of the transmission rises above a predetermined value, the electronic thermo valve is Since the temperature of the engine cooling water passing through the transmission heat exchanger is reduced by controlling the flow rate on the radiator side to increase, the oil temperature is reduced by the transmission heat exchanger, and the oil temperature of the transmission excessively rises. Is prevented, and promotion of oil deterioration is suppressed. In the oil temperature control device of the above (5), a valve is provided in an engine cooling water circuit portion provided with a heater, or an assist pump is provided in an engine cooling water circuit portion provided with a transmission heat exchanger. If the temperature rises above a predetermined value, the valve is controlled to restrict the flow of the engine cooling water circuit portion provided with the heater, or the assist pump is controlled to the engine cooling water circuit provided with the transmission heat exchanger. Since the flow of the engine cooling water through the transmission heat exchanger is increased by controlling the flow of the part to be increased, the oil temperature is reduced in the transmission heat exchanger, and the oil temperature of the transmission is excessively increased. Is prevented, and promotion of oil deterioration is suppressed.
In the oil temperature control device of the above (6), the oil temperature of the transmission is added to one of the control conditions of the flow control valve, and when the oil temperature of the transmission rises above a predetermined value, the flow control valve is set to: Controlling the flow of the engine cooling water through the bypass passage to increase the flow rate of the engine cooling water through the transmission heat exchanger reduces the oil temperature in the transmission heat exchanger and reduces the oil in the transmission. Is prevented from excessively rising, and promotion of oil deterioration is suppressed. In the oil temperature control device of the above (7), a pressure adjusting valve is provided in the transmission hydraulic circuit, or an oil flow assist pump is provided, and when the oil temperature of the transmission rises above a predetermined value, the pressure adjusting valve Control the oil path to the transmission heat exchanger to increase the pressure, or control the oil flow assist pump to increase the oil path flow to the transmission heat exchanger to Since the oil flow rate through the gearbox is increased, the temperature of the oil in the transmission heat exchanger is reduced, so that the temperature of the oil in the transmission is not excessively increased, and the acceleration of oil deterioration is suppressed.
【０００６】[0006]
【発明の実施の形態】本発明実施例の油温制御装置を、
図１〜図６を参照して説明する。図１〜３は本発明の実
施例１を示し、図４は本発明の実施例２を示し、図５は
本発明の実施例３を示し、図６は本発明の実施例４を示
す。本発明の全ての実施例に共通または類似する部分に
は本発明の全実施例にわたって同じ符号を付してある。DESCRIPTION OF THE PREFERRED EMBODIMENTS An oil temperature control device according to an embodiment of the present invention
This will be described with reference to FIGS. 1 to 3 show a first embodiment of the present invention, FIG. 4 shows a second embodiment of the present invention, FIG. 5 shows a third embodiment of the present invention, and FIG. 6 shows a fourth embodiment of the present invention. Portions common or similar to all embodiments of the present invention are denoted by the same reference numerals throughout all embodiments of the present invention.
【０００７】まず、本発明の全ての実施例に共通または
類似する部分の構成、作用を、図１を参照して、説明す
る。図１に示すように、本発明の油温制御装置は、エン
ジンのシリンダブロック内冷却水回路１、シリンダヘッ
ド内冷却水回路２、変速機内オイル回路３、ラジエータ
４が配されたラジエータ冷却水回路５、ラジエータ冷却
水回路５のバイパス回路６、ラジエータ冷却水回路５と
バイパス回路６との流れ割合を変えることができる流量
制御手段７、エンジン冷却水を循環させるウォータポン
プ８、空調用ヒータ（ヒータコア）９、エンジン冷却水
と変速機オイルとの熱交換を行う変速機熱交換器（ＡＴ
ＦウォーマまたはＡＴＦクーラともいう）１０を備えて
いる。１１はエンジンの運転を制御するＥＣＵ（電子制
御装置）である。First, the configuration and operation of a portion common or similar to all embodiments of the present invention will be described with reference to FIG. As shown in FIG. 1, the oil temperature control device of the present invention includes a radiator cooling water circuit in which a cooling water circuit 1 in a cylinder block, a cooling water circuit 2 in a cylinder head, an oil circuit 3 in a transmission, and a radiator 4 are arranged. 5, a bypass circuit 6 of the radiator cooling water circuit 5, a flow control means 7 capable of changing a flow ratio between the radiator cooling water circuit 5 and the bypass circuit 6, a water pump 8 for circulating engine cooling water, an air conditioning heater (heater core) 9.) A transmission heat exchanger (AT) for exchanging heat between engine cooling water and transmission oil
F warmer or ATF cooler) 10. Reference numeral 11 denotes an electronic control unit (ECU) that controls the operation of the engine.
【０００８】流量制御手段７は、ラジエータ冷却水回路
５とバイパス回路６との流れ割合を多段に変えることが
できる電子サーモバルブ７Ａか、または従来同様のサー
モバルブ７Ｂか、または流量制御弁７Ｃからなる。ヒー
タ９が配された回路と変速機熱交換器１０が配された回
路とが並列の場合、ヒータ９が配された回路に該回路を
絞ることができるバルブ１２が配されていてもよいし、
あるいは変速機熱交換器１０が配された回路に冷却水ア
シストポンプ１３が配されていてもよい。また、変速機
熱交換器１０内のオイル回路３には、圧力調整バルブ
（またはオイル流量アシストポンプ）１４が配されてい
てもよい。The flow control means 7 is provided with an electronic thermo valve 7A capable of changing the flow ratio between the radiator cooling water circuit 5 and the bypass circuit 6 in multiple stages, a thermo valve 7B similar to the conventional one, or a flow control valve 7C. Become. When the circuit in which the heater 9 is arranged and the circuit in which the transmission heat exchanger 10 is arranged are in parallel, a valve 12 capable of narrowing the circuit may be arranged in the circuit in which the heater 9 is arranged. ,
Alternatively, the cooling water assist pump 13 may be provided in a circuit in which the transmission heat exchanger 10 is provided. Further, the oil circuit 3 in the transmission heat exchanger 10 may be provided with a pressure adjusting valve (or an oil flow assist pump) 14.
【０００９】本発明の油温制御装置は、変速機油温が高
く、エンジン冷却水温も高い時、変速機の油温を下げる
ように構成されている。変速機油温が高く、エンジン冷
却水温も高い時、変速機の油温を下げる手段として、つ
ぎの何れかがとられている。 変速機熱交換器１０に入るエンジン冷却水の温度を
下げる手段（本発明の実施例１に対応する）。 変速機熱交換器１０に入るエンジン冷却水の流量を
上げる手段（本発明の実施例２、３に対応する）。 変速機熱交換器１０に入る変速機オイルの流量を上
げる手段（本発明の実施例４に対応する）。The oil temperature control device of the present invention is configured to lower the oil temperature of the transmission when the transmission oil temperature is high and the engine cooling water temperature is also high. When the transmission oil temperature is high and the engine cooling water temperature is also high, any of the following measures is taken as a means for lowering the transmission oil temperature. Means for lowering the temperature of the engine cooling water entering the transmission heat exchanger 10 (corresponding to the first embodiment of the present invention). Means for increasing the flow rate of engine cooling water entering the transmission heat exchanger 10 (corresponding to the second and third embodiments of the present invention). Means for increasing the flow rate of transmission oil entering the transmission heat exchanger 10 (corresponding to Embodiment 4 of the present invention).
【００１０】上記構成による作用としては、変速機油温
が高く、エンジン冷却水温も高い時、上記、、の
何れかの手段が働くことにより、変速機熱交換器でオイ
ルの温度が下げられ、変速機のオイルの温度の過上昇
（たとえば、１４０℃以上の温度への上昇）が防止さ
れ、オイル劣化（オイルの粘度が増し劣化）の促進が抑
制され、燃費の低下も抑制される。According to the above configuration, when the transmission oil temperature is high and the engine cooling water temperature is also high, any one of the above means works to lower the oil temperature in the transmission heat exchanger, thereby Excessive rise of the temperature of the oil of the machine (for example, rise to a temperature of 140 ° C. or more) is prevented, acceleration of oil deterioration (increase in oil viscosity and deterioration) is suppressed, and reduction in fuel efficiency is also suppressed.
【００１１】つぎに、本発明の各実施例に特有な構成、
作用を説明する。本発明の実施例１では、図１に示すよ
うに、ラジエータ冷却水回路５とバイパス回路６との合
流部に、ラジエータを通る流量とバイパス通路を通る流
量とを多段に変える電子サーモバルブ７Ａが配されてい
る。電子サーモバルブ７Ａは、ＥＣＵ１１の出力信号に
従って制御されるが、ＥＣＵ１１の制御条件（入力信
号）の一つに変速機のオイルの温度（オイル温度センサ
１５の出力信号）を加え、変速機のオイルの温度が所定
値（たとえば、１２０℃）よりも上昇した場合、電子サ
ーモバルブ７Ａを、バイパス回路６の流量よりもラジエ
ータ側回路５の流量を増加させるように制御して、変速
機熱交換器１０を通るエンジン冷却水の温度をさげる。Next, a configuration specific to each embodiment of the present invention,
The operation will be described. In the first embodiment of the present invention, as shown in FIG. 1, an electronic thermo valve 7A that changes the flow rate through the radiator and the flow rate through the bypass passage in multiple stages is provided at the junction of the radiator cooling water circuit 5 and the bypass circuit 6. Are arranged. The electronic thermovalve 7A is controlled in accordance with an output signal of the ECU 11. The temperature of the transmission oil (the output signal of the oil temperature sensor 15) is added to one of the control conditions (input signals) of the ECU 11, and the transmission oil is transmitted. Is higher than a predetermined value (for example, 120 ° C.), the electronic thermovalve 7A is controlled so that the flow rate of the radiator side circuit 5 is increased more than the flow rate of the bypass circuit 6, and the transmission heat exchanger is controlled. Reduce the temperature of the engine coolant passing through 10.
【００１２】より詳しくは、ＥＣＵ１１にて、エンジン
負荷が軽、中負荷で、変速機油温が高い（（たとえば、
１２０℃以上）時に、図２に示すように、電子サーモバ
ルブ７ＡをＯＮとしてラジエータ側回路５の流量を増加
させ、図３に示すように、エンジン冷却水温を低くし
て、変速機熱交換器１０を通るエンジン冷却水の温度を
下げ、変速機熱交換器１０を通るオイル温度を下げる。
前記の変速機熱交換器１０に入るエンジン冷却水の温
度を下げる手段は、電子サーモバルブ７Ａ、オイル温度
センサ１５、ＥＣＵ１１からなる。More specifically, in the ECU 11, the transmission oil temperature is high (for example, when the engine load is light, medium load,
At 120 ° C. or higher), as shown in FIG. 2, the electronic thermo valve 7A is turned on to increase the flow rate of the radiator side circuit 5, and as shown in FIG. The temperature of the engine cooling water passing through 10 and the temperature of the oil passing through transmission heat exchanger 10 are reduced.
The means for lowering the temperature of the engine cooling water entering the transmission heat exchanger 10 includes the electronic thermo valve 7A, the oil temperature sensor 15, and the ECU 11.
【００１３】本発明の実施例１の油温制御装置では、電
子サーモバルブ７Ａの制御条件の一つに変速機のオイル
の温度を加え、変速機のオイルの温度が所定値よりも上
昇した場合、電子サーモバルブ７Ａを、ラジエータ側５
流量を増加させるように制御して、変速機熱交換器１０
を通るエンジン冷却水の温度をさげるので、変速機熱交
換器１０でオイルの温度が下げられ、変速機のオイルの
温度の過上昇が防止され、オイル劣化の促進が抑制され
る。In the oil temperature control device according to the first embodiment of the present invention, when the temperature of the transmission oil is added to one of the control conditions of the electronic thermovalve 7A and the temperature of the transmission oil rises above a predetermined value. , The electronic thermo valve 7A, the radiator side 5
The transmission heat exchanger 10 is controlled to increase the flow rate.
, The temperature of the oil in the transmission heat exchanger 10 is reduced, so that the temperature of the oil in the transmission is not excessively increased and the acceleration of oil deterioration is suppressed.
【００１４】本発明の実施例２では、図４に示すよう
に、ラジエータ冷却水回路５とバイパス回路６との合流
部に、ラジエータ４を通る流量とバイパス回路６を通る
流量とを変える従来型のサーモバルブ７Ｂが配されてい
る。また、変速機熱交換器１０が配されたエンジン冷却
水回路部分とヒータ９が配されたエンジン冷却水回路部
分とは互いに並列とされている。ヒータ９を設けたエン
ジン冷却水回路部分に該回路を絞ることができるバルブ
１２が設けられるか、または変速機熱交換器１０を設け
たエンジン冷却水回路部分に冷却水アシストポンプ１３
が設けられている。バルブ１２、冷却水アシストポンプ
１３はＥＣＵ（実施例１に準じる）に接続され、変速機
のオイルの温度（実施例１と同様、油温センサ１５の出
力信号）が所定値（たとえば、１２０℃）よりも上昇し
た場合、ＥＣＵにより、バルブ１２をヒータ９を設けた
エンジン冷却水回路部分の流れを絞るように制御する
か、または冷却水アシストポンプ１３を変速機熱交換器
１０を設けたエンジン冷却水回路部分の流れを増加させ
るように制御して、変速機熱交換器１０を通るエンジン
冷却水流量を増加させる。前記の変速機熱交換器１０
に入るエンジン冷却水の流量を上げる手段は、バルブ１
２または冷却水アシストポンプ１３、油温センサ、ＥＣ
Ｕによって構成される。In the second embodiment of the present invention, as shown in FIG. 4, a conventional type in which the flow rate through the radiator 4 and the flow rate through the bypass circuit 6 are changed at the junction of the radiator cooling water circuit 5 and the bypass circuit 6. Is disposed. The engine cooling water circuit portion where the transmission heat exchanger 10 is arranged and the engine cooling water circuit portion where the heater 9 is arranged are arranged in parallel with each other. The engine cooling water circuit portion provided with the heater 9 is provided with a valve 12 capable of restricting the circuit, or the engine cooling water circuit portion provided with the transmission heat exchanger 10 is provided with a cooling water assist pump 13
Is provided. The valve 12 and the cooling water assist pump 13 are connected to an ECU (according to the first embodiment), and the oil temperature of the transmission (the output signal of the oil temperature sensor 15 as in the first embodiment) is set to a predetermined value (for example, 120 ° C.). ), The ECU 12 controls the valve 12 so as to restrict the flow in the engine cooling water circuit portion provided with the heater 9 or sets the cooling water assist pump 13 to the engine provided with the transmission heat exchanger 10. The flow of the cooling water circuit is controlled to be increased to increase the flow rate of the engine cooling water through the transmission heat exchanger 10. The above-described transmission heat exchanger 10
The means for increasing the flow rate of engine cooling water entering
2 or cooling water assist pump 13, oil temperature sensor, EC
U.
【００１５】本発明の実施例２の油温制御装置では、変
速機のオイルの温度が所定値よりも上昇した場合、バル
ブ１２を、ヒータ９を設けたエンジン冷却水回路部分の
流れを絞るように制御するか、または冷却水アシストポ
ンプ１３を、変速機熱交換器１０を設けたエンジン冷却
水回路部分の流れを増加させるように制御して、変速機
熱交換器１０を通るエンジン冷却水流量を増加させるの
で、変速機熱交換器１０でオイルの温度が下げられ、変
速機のオイルの温度の過上昇が防止され、オイル劣化の
促進が抑制される。In the oil temperature control device according to the second embodiment of the present invention, when the temperature of the oil in the transmission rises above a predetermined value, the valve 12 is moved to reduce the flow in the engine cooling water circuit portion provided with the heater 9. Or the cooling water assist pump 13 is controlled so as to increase the flow of the engine cooling water circuit portion provided with the transmission heat exchanger 10 so that the engine cooling water flow rate through the transmission heat exchanger 10 is controlled. Is increased, the oil temperature is reduced in the transmission heat exchanger 10, the excessive increase in the oil temperature of the transmission is prevented, and the promotion of oil deterioration is suppressed.
【００１６】本発明の実施例３では、図５に示すよう
に、ラジエータ冷却水回路５とバイパス回路６との合流
部に、ラジエータ４を通る流量とバイパス回路６を通る
流量とを変えることができる流量制御弁７Ｃが配されて
いる。また、バイパス回路６と変速機熱交換器１０が配
されたエンジン冷却水回路部分とは互いに並列とされて
いる。また、変速機熱交換器１０が配されたエンジン冷
却水回路部分とヒータ９が配されたエンジン冷却水回路
部分とは互いに直列とされている。流量制御弁７Ｃは、
ＥＣＵ（実施例１に準じる）に接続されていて、ＥＣＵ
の出力信号により開閉制御されるようになっている。流
量制御弁７Ｃの制御条件の一つに、したがってＥＣＵの
入力条件の一つに、変速機のオイルの温度（実施例１と
同様、油温センサ１５の出力信号）を加え、変速機のオ
イルの温度が所定値（たとえば、１２０℃）よりも上昇
した場合、流量制御弁７Ｃを、バイパス通路６を通るエ
ンジン冷却水の流れを絞るように制御して、変速機熱交
換器１０を通るエンジン冷却水流量を増加させる。前記
の変速機熱交換器１０に入るエンジン冷却水の流量を
上げる手段は、流量制御弁７Ｃ、油温センサ、ＥＣＵに
よって構成される。In the third embodiment of the present invention, as shown in FIG. 5, the flow rate passing through the radiator 4 and the flow rate passing through the bypass circuit 6 may be changed at the junction of the radiator cooling water circuit 5 and the bypass circuit 6. A possible flow control valve 7C is provided. In addition, the bypass circuit 6 and the engine cooling water circuit portion where the transmission heat exchanger 10 is arranged are arranged in parallel with each other. Further, an engine cooling water circuit portion provided with the transmission heat exchanger 10 and an engine cooling water circuit portion provided with the heater 9 are arranged in series with each other. The flow control valve 7C is
Connected to an ECU (according to the first embodiment)
The opening / closing is controlled by the output signal of. The oil temperature of the transmission (the output signal of the oil temperature sensor 15 as in the first embodiment) is added to one of the control conditions of the flow control valve 7C, and thus to one of the input conditions of the ECU. When the temperature of the engine rises above a predetermined value (for example, 120 ° C.), the flow control valve 7C is controlled so as to restrict the flow of the engine cooling water through the bypass passage 6, and the engine passing through the transmission heat exchanger 10 is controlled. Increase cooling water flow. The means for increasing the flow rate of the engine cooling water entering the transmission heat exchanger 10 includes a flow rate control valve 7C, an oil temperature sensor, and an ECU.
【００１７】本発明の実施例３の油温制御装置では、変
速機のオイルの温度が所定値よりも上昇した場合、流量
制御弁７Ｃを、バイパス通路６を通るエンジン冷却水の
流れを絞るように制御して、変速機熱交換器１０を通る
エンジン冷却水流量を増加させるので、変速機熱交換器
１０でオイルの温度が下げられ、変速機のオイルの温度
の過上昇が防止され、オイル劣化の促進が抑制される。In the oil temperature control device according to the third embodiment of the present invention, when the oil temperature of the transmission rises above a predetermined value, the flow control valve 7C is used to restrict the flow of the engine cooling water through the bypass passage 6. To increase the flow rate of the engine cooling water passing through the transmission heat exchanger 10, so that the temperature of the oil in the transmission heat exchanger 10 is reduced, and the oil temperature of the transmission is prevented from excessively rising. Acceleration of deterioration is suppressed.
【００１８】本発明の実施例４では、図６に示すよう
に、変速機油圧回路３内に圧力調整バルブ１４かまたは
オイル流量アシストポンプが設けられている。そして、
圧力調整バルブ１４かまたはオイル流量アシストポンプ
は、ＥＣＵ（実施例１に準じる）と接続されていて、Ｅ
ＣＵの出力信号により開閉制御または駆動のオンオフが
されるようになっている。そして、変速機のオイルの温
度（実施例１と同様、油温センサ１５の出力信号）が所
定値よりも上昇した場合、ＥＣＵは、圧力調整バルブ１
４を変速機熱交換器１０へのオイル経路３の圧力を上げ
るように制御するかまたはオイル流量アシストポンプを
変速機熱交換器１０へのオイル経路３の流量を増加する
ように制御して、変速機熱交換器１０を通るオイル流量
を増加させる。前記変速機熱交換器１０に入る変速機
オイルの流量を上げる手段は、圧力調整バルブ１４かま
たはオイル流量アシストポンプ、ＥＣＵ、油温センサか
ら構成される。In the fourth embodiment of the present invention, as shown in FIG. 6, a pressure adjusting valve 14 or an oil flow assist pump is provided in the transmission hydraulic circuit 3. And
Either the pressure regulating valve 14 or the oil flow assist pump is connected to an ECU (according to the first embodiment).
Opening / closing control or ON / OFF of driving is performed by an output signal of the CU. When the oil temperature of the transmission (the output signal of the oil temperature sensor 15 as in the first embodiment) rises above a predetermined value, the ECU sets the pressure regulating valve 1
4 is controlled to increase the pressure of the oil path 3 to the transmission heat exchanger 10 or the oil flow assist pump is controlled to increase the flow rate of the oil path 3 to the transmission heat exchanger 10; Increase the oil flow through the transmission heat exchanger 10. The means for increasing the flow rate of the transmission oil entering the transmission heat exchanger 10 includes the pressure regulating valve 14 or an oil flow assist pump, an ECU, and an oil temperature sensor.
【００１９】本発明の実施例４の油温制御装置では、変
速機油圧回路３内に圧力調整バルブ１４を設けるか、ま
たはオイル流量アシストポンプを設け、変速機のオイル
の温度が所定値よりも上昇した場合、圧力調整バルブ１
４を変速機熱交換器へのオイル経路の圧力を上げるよう
に制御するか、またはオイル流量アシストポンプを変速
機熱交換器へのオイル経路の流量を増加するように制御
して、変速機熱交換器１０を通るオイル流量を増加させ
るので、変速機熱交換器１０でオイルの温度が下げら
れ、変速機のオイルの温度の過上昇が防止され、オイル
劣化の促進が抑制される。上記では、被潤滑機が変速機
の場合を例にとったが、被潤滑機は変速機に限るもので
はなく、変速機以外、たとえばエンジンであってもよ
い。In the oil temperature control device according to the fourth embodiment of the present invention, a pressure adjusting valve 14 is provided in the transmission hydraulic circuit 3 or an oil flow assist pump is provided so that the temperature of the transmission oil is lower than a predetermined value. If it rises, the pressure adjustment valve 1
4 to increase the pressure in the oil path to the transmission heat exchanger, or control the oil flow assist pump to increase the flow rate in the oil path to the transmission heat exchanger, Since the oil flow rate through the exchanger 10 is increased, the temperature of the oil in the transmission heat exchanger 10 is reduced, so that the oil temperature of the transmission is not excessively increased, and the promotion of oil deterioration is suppressed. In the above description, the case where the lubricated machine is a transmission is taken as an example, but the lubricated machine is not limited to the transmission, and may be other than the transmission, for example, an engine.
【００２０】[0020]
【発明の効果】請求項１〜３の油温制御装置によれば、
被潤滑機のオイルの温度が所定値よりも上昇した場合、
冷媒流量制御手段により、熱交換器でオイルの温度が下
げられ、被潤滑機のオイルの温度の過上昇が防止され、
オイル劣化の促進が抑制される。請求項４の油温制御装
置によれば、電子サーモバルブの制御条件の一つに変速
機のオイルの温度を加え、変速機のオイルの温度が所定
値よりも上昇した場合、電子サーモバルブを、ラジエー
タ側流量を増加させるように制御して、変速機熱交換器
を通るエンジン冷却水の温度をさげるので、変速機熱交
換器でオイルの温度が下げられ、変速機のオイルの温度
の過上昇を防止でき、オイル劣化を抑制できる。請求項
５の油温制御装置によれば、ヒータを設けたエンジン冷
却水回路部分にバルブを設けるか、または変速機熱交換
器を設けたエンジン冷却水回路部分にアシストポンプを
設け、変速機のオイルの温度が所定値よりも上昇した場
合、バルブを、ヒータを設けたエンジン冷却水回路部分
の流れを絞るように制御するか、またはアシストポンプ
を、変速機熱交換器を設けたエンジン冷却水回路部分の
流れを増加させるように制御して、変速機熱交換器を通
るエンジン冷却水流量を増加させるので、変速機熱交換
器でオイルの温度が下げられ、変速機のオイルの温度の
過上昇を防止でき、オイル劣化を抑制できる。請求項６
の油温制御装置によれば、流量制御弁の制御条件の一つ
に変速機のオイルの温度を加え、変速機のオイルの温度
が所定値よりも上昇した場合、流量制御弁を、バイパス
通路を通るエンジン冷却水の流れを絞るように制御し
て、変速機熱交換器を通るエンジン冷却水流量を増加さ
せるので、変速機熱交換器でオイルの温度が下げられ、
変速機のオイルの温度の過上昇を防止でき、オイル劣化
を抑制できる。請求項７の油温制御装置によれば、変速
機油圧回路内に圧力調整バルブを設けるか、またはオイ
ル流量アシストポンプを設け、変速機のオイルの温度が
所定値よりも上昇した場合、圧力調整バルブを変速機熱
交換器へのオイル経路の圧力を上げるように制御する
か、またはオイル流量アシストポンプを変速機熱交換器
へのオイル経路の流量を増加するように制御して、変速
機熱交換器を通るオイル流量を増加させるので、変速機
熱交換器でオイルの温度が下げられ、変速機のオイルの
温度の過上昇を防止でき、オイル劣化を抑制できる。According to the oil temperature control device of claims 1 to 3,
If the oil temperature of the lubricated machine rises above a predetermined value,
By the refrigerant flow rate control means, the temperature of the oil is reduced in the heat exchanger, and the temperature of the oil in the lubricated machine is prevented from excessively rising
Acceleration of oil deterioration is suppressed. According to the oil temperature control device of the fourth aspect, the oil temperature of the transmission is added to one of the control conditions of the electronic thermovalve, and when the oil temperature of the transmission rises above a predetermined value, the electronic thermovalve is turned off. , The radiator-side flow rate is controlled to increase the temperature of the engine cooling water passing through the transmission heat exchanger, so that the oil temperature in the transmission heat exchanger is reduced, and The rise can be prevented and oil deterioration can be suppressed. According to the oil temperature control device of the fifth aspect, a valve is provided in an engine cooling water circuit portion provided with a heater, or an assist pump is provided in an engine cooling water circuit portion provided with a transmission heat exchanger. When the temperature of the oil rises above a predetermined value, the valve is controlled so as to restrict the flow in the engine cooling water circuit portion provided with the heater, or the assist pump is provided with the engine cooling water provided with the transmission heat exchanger. Since the flow of the circuit is controlled to be increased to increase the flow rate of the engine cooling water through the transmission heat exchanger, the oil temperature of the transmission heat exchanger is reduced, and the temperature of the oil of the transmission becomes excessive. The rise can be prevented and oil deterioration can be suppressed. Claim 6
According to the oil temperature control device, the oil temperature of the transmission is added to one of the control conditions of the flow control valve, and when the oil temperature of the transmission rises above a predetermined value, the flow control valve is connected to the bypass passage. The flow of engine cooling water through the transmission heat exchanger is controlled to reduce the flow of engine cooling water through the transmission heat exchanger, so that the oil temperature in the transmission heat exchanger is reduced,
Excessive rise in the oil temperature of the transmission can be prevented, and oil deterioration can be suppressed. According to the oil temperature control device of the seventh aspect, a pressure adjusting valve is provided in the transmission hydraulic circuit or an oil flow assist pump is provided, and when the oil temperature of the transmission rises above a predetermined value, the pressure adjustment is performed. Control the valve to increase the pressure in the oil path to the transmission heat exchanger, or control the oil flow assist pump to increase the flow rate in the oil path to the transmission heat exchanger, Since the oil flow rate through the exchanger is increased, the temperature of the oil is reduced in the transmission heat exchanger, so that the temperature of the oil in the transmission can be prevented from excessively rising, and oil deterioration can be suppressed.
【図１】本発明の実施例１の油温制御装置の系統図であ
る。FIG. 1 is a system diagram of an oil temperature control device according to a first embodiment of the present invention.
【図２】本発明の実施例１の油温制御装置の、従来装置
との比較図である。FIG. 2 is a comparison diagram of the oil temperature control device according to the first embodiment of the present invention with a conventional device.
【図３】本発明の実施例１の油温制御装置の、電子サー
モバルブＯＮ、ＯＦＦと水温変化との関係を示すグラフ
である。FIG. 3 is a graph showing a relationship between an electronic thermo valve ON / OFF and a change in water temperature in the oil temperature control device according to the first embodiment of the present invention.
【図４】本発明の実施例２の油温制御装置の系統図であ
る。FIG. 4 is a system diagram of an oil temperature control device according to a second embodiment of the present invention.
【図５】本発明の実施例３の油温制御装置の系統図であ
る。FIG. 5 is a system diagram of an oil temperature control device according to a third embodiment of the present invention.
【図６】本発明の実施例４の油温制御装置の系統図であ
る。FIG. 6 is a system diagram of an oil temperature control device according to a fourth embodiment of the present invention.
１ シリンダブロック内冷却水回路 ２ シリンダヘッド内冷却水回路 ３ 変速機内オイル回路 ４ ラジエータ ５ ラジエータ冷却水回路 ６ バイパス回路 ７ 流量制御手段 ７Ａ 電子サーモバルブ ７Ｂ サーモバルブ ７Ｃ 流量制御弁 ８ ウォータポンプ ９ 空調用ヒータ １０ 変速機熱交換器 １１ ＥＣＵ １２ バルブ １３ 冷却水アシストポンプ １４ 圧力調整バルブ １５ オイル温度センサ（油温センサ） Reference Signs List 1 cooling water circuit in cylinder block 2 cooling water circuit in cylinder head 3 oil circuit in transmission 4 radiator 5 radiator cooling water circuit 6 bypass circuit 7 flow control means 7A electronic thermo valve 7B thermo valve 7C flow control valve 8 water pump 9 for air conditioning Heater 10 Transmission heat exchanger 11 ECU 12 Valve 13 Cooling water assist pump 14 Pressure adjusting valve 15 Oil temperature sensor (oil temperature sensor)
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3J552 MA01 NA01 NB01 PA60 PA61 QA03C QC01 UA10 VA48W VC01Z VC03Z VC07Z ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3J552 MA01 NA01 NB01 PA60 PA61 QA03C QC01 UA10 VA48W VC01Z VC03Z VC07Z
Claims (7)
を冷却する冷媒との間で熱交換を行う熱交換器と、前記
冷媒を冷却するラジエータを備えた油温制御装置におい
て、前記被潤滑機のオイル温度に基づいて前記ラジエー
タを経由し且つ前記ラジエータと前記熱交換器との間の
冷媒流量を制御する冷媒流量制御手段を設けたことを特
徴とする油温制御装置。1. An oil temperature control device comprising: a heat exchanger for exchanging heat between oil supplied to a lubricated machine and a refrigerant for cooling an engine; and a radiator for cooling the refrigerant. An oil temperature control device, comprising: refrigerant flow control means for controlling a refrigerant flow between the radiator and the heat exchanger via the radiator based on an oil temperature of the machine.
タを通る冷媒の流量と前記ラジエータを迂回するバイパ
ス通路を通る冷媒の流量を制御する流量制御弁であるこ
とを特徴とする請求項１記載の油温制御装置。2. The refrigerant flow control device according to claim 1, wherein the refrigerant flow control means is a flow control valve that controls a flow rate of the refrigerant passing through the radiator and a flow rate of the refrigerant passing through a bypass passage that bypasses the radiator. Oil temperature control device.
への冷媒流量を制御するポンプであることを特徴とする
請求項１記載の油温制御装置。3. The oil temperature control device according to claim 1, wherein the refrigerant flow rate control means is a pump for controlling a flow rate of the refrigerant to the heat exchanger.
通る流量とを多段に変える電子サーモバルブを備えたエ
ンジン冷却系と、エンジン冷却水と変速機のオイルとの
熱交換を行う変速機熱交換器を備えている油温制御装置
であって、前記電子サーモバルブの制御条件の一つに変
速機のオイルの温度を加え、変速機のオイルの温度が所
定値よりも上昇した場合、前記電子サーモバルブをラジ
エータ側流量を増加させるように制御して前記変速機熱
交換器を通るエンジン冷却水の温度をさげる油温制御装
置。4. An engine cooling system having an electronic thermo valve for changing a flow rate through a radiator and a flow rate through a bypass passage in multiple stages, and a transmission heat exchanger for exchanging heat between engine cooling water and transmission oil. An oil temperature control device comprising: a temperature of transmission oil added to one of the control conditions of the electronic thermovalve, wherein the temperature of the transmission oil rises above a predetermined value, An oil temperature control device for controlling a valve so as to increase a radiator-side flow rate to reduce a temperature of engine cooling water passing through the transmission heat exchanger.
通る流量とを変えるサーモバルブを備えたエンジン冷却
系と、エンジン冷却水と変速機のオイルとの熱交換を行
う変速機熱交換器を備えている油温制御装置であって、
前記エンジン冷却水回路部分にバルブを設けるかまたは
前記変速機熱交換器を設けたエンジン冷却水回路部分に
アシストポンプを設け、変速機のオイルの温度が所定値
よりも上昇した場合、前記バルブを前記エンジン冷却水
回路部分の流れを絞るように制御するかまたは前記アシ
ストポンプを前記変速機熱交換器を設けたエンジン冷却
水回路部分の流れを増加させるように制御して、前記変
速機熱交換器を通るエンジン冷却水流量を増加させる油
温制御装置。5. An engine cooling system having a thermo valve for changing a flow rate through a radiator and a flow rate through a bypass passage, and a transmission heat exchanger for exchanging heat between engine cooling water and transmission oil. Oil temperature control device,
A valve is provided in the engine cooling water circuit portion or an assist pump is provided in the engine cooling water circuit portion provided with the transmission heat exchanger, and when the temperature of the transmission oil rises above a predetermined value, the valve is closed. By controlling the flow of the engine cooling water circuit to reduce the flow, or controlling the assist pump to increase the flow of the engine cooling water circuit provided with the transmission heat exchanger, Oil temperature controller that increases the flow of engine cooling water through the vessel.
通る流量とを変える流量制御弁を備えたエンジン冷却系
と、前記バイパス通路に対して並列なエンジン冷却水回
路部分にエンジン冷却水と変速機のオイルとの熱交換を
行う変速機熱交換器を備えている油温制御装置であっ
て、前記流量制御弁の制御条件の一つに変速機のオイル
の温度を加え、変速機のオイルの温度が所定値よりも上
昇した場合、前記流量制御弁を前記バイパス通路を通る
エンジン冷却水の流れを絞るように制御して、前記変速
機熱交換器を通るエンジン冷却水流量を増加させる油温
制御装置。6. An engine cooling system having a flow control valve for changing a flow rate passing through a radiator and a flow rate passing through a bypass passage, and an engine cooling water circuit portion parallel to the bypass passage includes an engine cooling water and a transmission. An oil temperature control device including a transmission heat exchanger that performs heat exchange with oil, wherein the oil temperature of the transmission is added to one of the control conditions of the flow control valve, and the oil temperature of the transmission is controlled. Is higher than a predetermined value, an oil temperature control that controls the flow control valve so as to restrict the flow of the engine cooling water through the bypass passage to increase the flow rate of the engine cooling water through the transmission heat exchanger. apparatus.
交換を行う変速機熱交換器を備えている油温制御装置で
あって、変速機油圧回路内に圧力調整バルブを設けるか
またはオイル流量アシストポンプを設け、変速機のオイ
ルの温度が所定値よりも上昇した場合、前記圧力調整バ
ルブを変速機熱交換器へのオイル経路の圧力を上げるよ
うに制御するかまたは前記オイル流量アシストポンプを
変速機熱交換器へのオイル経路の流量を増加するように
制御して、前記変速機熱交換器を通るオイル流量を増加
させる油温制御装置。7. An oil temperature control device provided with a transmission heat exchanger for performing heat exchange between engine cooling water and transmission oil, wherein a pressure adjusting valve is provided in a transmission hydraulic circuit or an oil pressure control valve is provided. A flow assist pump is provided, and when the oil temperature of the transmission rises above a predetermined value, the pressure regulating valve is controlled to increase the pressure of an oil path to a transmission heat exchanger, or the oil flow assist pump is provided. An oil temperature control device for controlling the oil flow rate of the oil path to the transmission heat exchanger to increase the oil flow rate passing through the transmission heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001150242A JP4491991B2 (en) | 2001-05-21 | 2001-05-21 | Oil temperature control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001150242A JP4491991B2 (en) | 2001-05-21 | 2001-05-21 | Oil temperature control device |
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| Publication Number | Publication Date |
|---|---|
| JP2002340161A true JP2002340161A (en) | 2002-11-27 |
| JP4491991B2 JP4491991B2 (en) | 2010-06-30 |
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ID=18995286
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001150242A Expired - Fee Related JP4491991B2 (en) | 2001-05-21 | 2001-05-21 | Oil temperature control device |
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| JP (1) | JP4491991B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005113783A (en) * | 2003-10-07 | 2005-04-28 | Denso Corp | Cooling water circuit |
| JP2008095694A (en) * | 2006-10-12 | 2008-04-24 | Ford Global Technologies Llc | Cooling device for engine |
| KR101184196B1 (en) | 2009-02-26 | 2012-09-20 | 한라공조주식회사 | Oil Warming and Cooling System |
| KR101219336B1 (en) * | 2006-10-12 | 2013-01-08 | 현대자동차주식회사 | Fuel efficiency improving system and method in oil cooler system of automobile |
| KR101257680B1 (en) | 2009-02-26 | 2013-04-24 | 한라공조주식회사 | Warmer |
| US8459388B2 (en) | 2008-11-26 | 2013-06-11 | Hyundai Motor Company | Evaporation cycle heat exchange system for vehicle |
| JP2018105238A (en) * | 2016-12-27 | 2018-07-05 | いすゞ自動車株式会社 | Cooling system |
| JP2021156181A (en) * | 2020-03-25 | 2021-10-07 | マツダ株式会社 | Vehicular cooler |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102472409B1 (en) * | 2021-02-23 | 2022-11-30 | 쌍용자동차 주식회사 | Transmission temperature control device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005113783A (en) * | 2003-10-07 | 2005-04-28 | Denso Corp | Cooling water circuit |
| JP2008095694A (en) * | 2006-10-12 | 2008-04-24 | Ford Global Technologies Llc | Cooling device for engine |
| KR101219336B1 (en) * | 2006-10-12 | 2013-01-08 | 현대자동차주식회사 | Fuel efficiency improving system and method in oil cooler system of automobile |
| US8459388B2 (en) | 2008-11-26 | 2013-06-11 | Hyundai Motor Company | Evaporation cycle heat exchange system for vehicle |
| US9162549B2 (en) | 2008-11-26 | 2015-10-20 | Hyundai Motor Company | Evaporation cycle heat exchange system for vehicle |
| KR101184196B1 (en) | 2009-02-26 | 2012-09-20 | 한라공조주식회사 | Oil Warming and Cooling System |
| KR101257680B1 (en) | 2009-02-26 | 2013-04-24 | 한라공조주식회사 | Warmer |
| JP2018105238A (en) * | 2016-12-27 | 2018-07-05 | いすゞ自動車株式会社 | Cooling system |
| JP2021156181A (en) * | 2020-03-25 | 2021-10-07 | マツダ株式会社 | Vehicular cooler |
| JP7402417B2 (en) | 2020-03-25 | 2023-12-21 | マツダ株式会社 | Vehicle cooling system |
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|---|---|
| JP4491991B2 (en) | 2010-06-30 |
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