JPH06117259A - Water pump control device of intercooler - Google Patents

Water pump control device of intercooler

Info

Publication number
JPH06117259A
JPH06117259A JP26621492A JP26621492A JPH06117259A JP H06117259 A JPH06117259 A JP H06117259A JP 26621492 A JP26621492 A JP 26621492A JP 26621492 A JP26621492 A JP 26621492A JP H06117259 A JPH06117259 A JP H06117259A
Authority
JP
Japan
Prior art keywords
water pump
temperature
cooling water
intercooler
reference temperature
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
Application number
JP26621492A
Other languages
Japanese (ja)
Other versions
JP3156207B2 (en
Inventor
Yukio Miyashita
幸生 宮下
Atsushi Ide
温 井出
Takashi Isobe
高志 磯部
Takashi Daicho
尚 大長
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP26621492A priority Critical patent/JP3156207B2/en
Publication of JPH06117259A publication Critical patent/JPH06117259A/en
Application granted granted Critical
Publication of JP3156207B2 publication Critical patent/JP3156207B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To prevent the excessive action of a water pump by controlling the action of the water pump according to the comparison result of the temperature of the cooling water in the cooling water circuit of an intercooler with the reference temperature, and changing the reference temperature according to the engine running condition. CONSTITUTION:A cooling water circuit 13 of an intercooler 5 cools the intercooler 5 by circulating the cooling water between the intercooler 5 and a radiator 15 by the action of an electric-driven water PUMP 14. The water pump 14 is controlled together with a fuel injection valve 7 by an electronic control circuit 10 to receive various output signals of various sensors. That means, the water pump 14 is actuated when the temperature TWc of the cooling water to be detected by an intercooler cooling water temperature sensor 23 exceeds the reference temperature TWon to judge the actuation starting, and stopped when the temperature of the cooling water falls below the reference temperature TWoff to judge the actuation stopping. The respective reference temperatures are set to the relatively low temperature, while set to the relative high temperature during the idling operation.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、主として車載エンジン
用インタークーラの冷却水回路に介設される電動式ウォ
ータポンプの制御装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a control device for an electric water pump provided in a cooling water circuit of an intercooler for a vehicle engine.

【0002】[0002]

【従来の技術】従来、この種の制御装置として、エンジ
ンのアイドリング時にウォータポンプを作動させると充
放電収支や燃費性が悪化するため、アイドリング時には
ウォータポンプを停止するようにしたものが知られてい
る(特開昭60−240823号公報)。
2. Description of the Related Art Conventionally, a control device of this type is known in which the water pump is stopped when idling because the charge / discharge balance and fuel economy deteriorate when the water pump is operated when the engine is idling. (Japanese Patent Laid-Open No. 60-240823).

【0003】[0003]

【発明が解決しようとする課題】ところで、アイドリン
グ状態であってもホットリスタート時や、また渋滞でア
イドリング運転を長時間継続する場合にはインタークー
ラの冷却水温がかなり高くなり、アイドリング後の加速
に際しウォータポンプを作動してもインタークーラの冷
却水温が低下するまでに時間がかかり、吸気温がなかな
か低下せずドライバビリティが悪化する。
By the way, the cooling water temperature of the intercooler becomes considerably high at the time of hot restart even when idling, or when idling operation is continued for a long time due to traffic jam, and the acceleration after idling is accelerated. In this case, it takes time for the cooling water temperature of the intercooler to drop even if the water pump is operated, and the intake air temperature does not drop easily and driveability deteriorates.

【0004】この場合、インタークーラの冷却水温を検
出し、アイドリング時か否かに関係なく冷却水温が所定
温度以上になったときウォータポンプを作動させるよう
にすることも考えられるが、アイドリング時(低速走行
時を含む)は、走行風の関係でインタークーラ用ラジエ
ータの冷却性能が低下するため、ウォータポンプを作動
させても冷却水温はなかなか低下せず、ウォータポンプ
の作動時間が長引いて、充放電収支の悪化や燃費性の悪
化を生ずる。
In this case, it is conceivable to detect the cooling water temperature of the intercooler and operate the water pump when the cooling water temperature becomes equal to or higher than a predetermined temperature irrespective of whether it is idling or not. (Including low-speed running), the cooling performance of the radiator for the intercooler deteriorates due to the running wind, so even if the water pump is operated, the cooling water temperature does not drop easily, and the operating time of the water pump is prolonged and the charging is continued. Discharge balance and fuel efficiency deteriorate.

【0005】本発明は、以上の点に鑑み、ウォータポン
プを無駄に作動させることなくドライバビリティを向上
し得るようにした装置を提供することをその目的として
いる。
In view of the above points, an object of the present invention is to provide a device capable of improving drivability without wastefully operating the water pump.

【0006】[0006]

【課題を解決するための手段】上記目的を達成すべく、
本発明は、インタークーラの冷却水回路に介設される電
動式ウォータポンプの制御装置であって、冷却水温を検
出する手段と、該冷却水温を基準温度と比較してウォー
タポンプを作動するか否かの判定を行う手段とを備える
と共に、エンジンの運転状態に応じて前記基準温度を変
更する手段を備えることを特徴とする。
[Means for Solving the Problems] In order to achieve the above object,
The present invention is a control device for an electric water pump provided in a cooling water circuit of an intercooler, comprising means for detecting a cooling water temperature and operating the water pump by comparing the cooling water temperature with a reference temperature. And a means for changing the reference temperature according to the operating state of the engine.

【0007】[0007]

【作用】アイドリング時でも冷却水温が基準温度を上回
ったときはウォータポンプを作動し、アイドリング中に
冷却水温が過度に上昇しないようにし、アイドリング後
の通常運転に際してのドライバビリティの悪化を防止す
る。
Operation: When the cooling water temperature exceeds the reference temperature even during idling, the water pump is operated so that the cooling water temperature does not rise excessively during idling, and deterioration of drivability during normal operation after idling is prevented.

【0008】ここで、本発明ではエンジンの運転状態に
応じて基準温度を変更する手段を備えるため、例えば通
常運転時は基準温度を比較的小さく設定し、吸気温を低
く抑えてドライバビリティを向上し、一方、アイドリン
グ時は基準温度を比較的高く設定して、ウォータポンプ
の過剰な作動を防止することができる。
Since the present invention is provided with means for changing the reference temperature according to the operating state of the engine, for example, during normal operation, the reference temperature is set to be relatively low, and the intake air temperature is kept low to improve drivability. On the other hand, at the time of idling, the reference temperature can be set to a relatively high value to prevent excessive operation of the water pump.

【0009】[0009]

【実施例】図1を参照して、1はエンジンを示し、該エ
ンジン1の吸気通路2に、上流側から順に、エアクリー
ナ3と、スーパーチャージャ4と、インタークーラ5
と、スロットル弁6と、燃料噴射弁7とを設け、燃料タ
ンク8から燃料ポンプ9を介して燃料噴射弁7に燃料を
供給し、電子制御回路10により燃料噴射弁7を制御し
て、エンジンの運転状態に応じて燃料噴射量を増減制御
するようにした。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, reference numeral 1 denotes an engine. An air cleaner 3, a supercharger 4, and an intercooler 5 are arranged in an intake passage 2 of the engine 1 in this order from the upstream side.
A throttle valve 6 and a fuel injection valve 7 are provided, fuel is supplied from the fuel tank 8 to the fuel injection valve 7 via the fuel pump 9, and the electronic control circuit 10 controls the fuel injection valve 7 to control the engine. The fuel injection amount is controlled to increase / decrease according to the operating state of.

【0010】また、吸気通路2には、インタークーラ5
を通過した空気の一部をスーパーチャージャ4に戻すバ
イパス通路11が接続されており、該バイパス通路11
に電子制御回路10で制御されるモータ12aにより駆
動される過給コントロール弁12を介設して、過給圧を
制御するようにした。
In addition, the intake passage 2 has an intercooler 5
A bypass passage 11 is connected to return a part of the air passing through the supercharger 4 to the supercharger 4.
Further, the supercharging control valve 12 driven by the motor 12a controlled by the electronic control circuit 10 is provided to control the supercharging pressure.

【0011】インタークーラ5は水冷式であって、エン
ジンの冷却水回路(図示せず)から独立した冷却水回路
13を備えており、該回路13に電子制御回路10で制
御される電動式のウォータポンプ14とラジエータ15
とを介設し、ウォータポンプ14の作動でインタークー
ラ5とラジエータ15との間に冷却水を循環させるよう
にした。
The intercooler 5 is a water-cooled type, and is provided with a cooling water circuit 13 which is independent of a cooling water circuit (not shown) of the engine, and the circuit 13 is an electric type controlled by an electronic control circuit 10. Water pump 14 and radiator 15
And the cooling water is circulated between the intercooler 5 and the radiator 15 by the operation of the water pump 14.

【0012】電子制御回路10には、スロットル弁6の
開度θthを検出するセンサ16と、スロットル弁6の
下流の吸気管内圧P1を検出するセンサ17と、吸気温
TAを検出するセンサ18と、エンジン回転数Neを検
出するセンサ19と、エンジンの冷却水温TWeを検出
するセンサ20と、排気中の酸素濃度O2を検出するセ
ンサ21と、スロットル弁6の上流側の過給圧P2を検
出するセンサ22と、インタークーラ5の冷却水温TW
cを検出するセンサ23とからの信号が入力されてお
り、θth、P1、TA、Ne、TWe、O2に基いて判
別されるエンジンの運転状態に応じて燃料噴射弁7を制
御すると共に、P2に応じて過給コントロール弁12を
制御し、更にエンジンの運転状態及びTWcに応じてウ
ォータポンプ14を以下の如く制御するようにした。
The electronic control circuit 10 includes a sensor 16 for detecting the opening θth of the throttle valve 6, a sensor 17 for detecting the intake pipe internal pressure P 1 downstream of the throttle valve 6, and a sensor 18 for detecting the intake air temperature TA. A sensor 19 for detecting the engine speed Ne, a sensor 20 for detecting the engine coolant temperature TWe, a sensor 21 for detecting the oxygen concentration O 2 in the exhaust gas, and a supercharging pressure P on the upstream side of the throttle valve 6. Sensor 22 for detecting 2 and cooling water temperature TW of intercooler 5
The signal from the sensor 23 that detects c is input, and the fuel injection valve 7 is controlled according to the operating state of the engine that is determined based on θth, P 1 , TA, Ne, TWe, and O 2. , P 2 , the supercharge control valve 12 is controlled, and the water pump 14 is controlled as follows in accordance with the engine operating condition and TWc.

【0013】これを図2に参照して詳述するに、先ずS
1のステップで後記するサービス端子がショートか否か
を判別し、ショートでなければS2のステップに進んで
TWeが暖機完了の判定基準となる所定温度TWes
(例えば74℃)以上か否かを判別し、TWe≧TWe
sであればS3のステップに進み、TWcがラジエータ
15での放熱が全く不要となるかなり低温の基準温度T
Wcs(例えば10℃)以上か否かを判別し、TWc≧
TWcsであればS4のステップに進んでエンジンが高
負荷運転時であるか否かを判別する。尚、TWcsはヒ
ステリシス付きとし、また、高負荷運転か否かの判別は
例えばθthが全開か否かで行う。
This will be described in detail with reference to FIG.
In step 1, it is determined whether the service terminal, which will be described later, is short-circuited. If not short-circuited, the process proceeds to step S2, where TWe is a predetermined temperature TWes that is a criterion for completion of warm-up.
(For example, 74 ° C.) or more is determined, and TWe ≧ TWe
If it is s, the process proceeds to step S3, and TWc is a considerably low reference temperature T at which radiator 15 does not need to dissipate heat.
It is determined whether or not Wcs (for example, 10 ° C.) or more, and TWc ≧
If it is TWcs, the routine proceeds to step S4, where it is judged if the engine is under high load operation. Note that TWcs has hysteresis, and whether or not high load operation is performed is determined by, for example, whether or not θth is fully opened.

【0014】高負荷運転時はS5のステップに進んで減
算タイマの残り時間tを所定の設定時間tsにセットし
た後、S6のステップに進んでウォータポンプ14を作
動し、次いでS7のステップに進んでウォータポンプ1
4の作動状態を示すフラグFを「1」に書き換える。
During high load operation, the process proceeds to step S5 to set the remaining time t of the subtraction timer to a predetermined set time ts, and then proceeds to step S6 to operate the water pump 14, and then proceeds to step S7. With water pump 1
The flag F indicating the operation state of No. 4 is rewritten to "1".

【0015】ここで、高負荷運転による加速途中でウォ
ータポンプ14が作動すると、ウォータポンプ14の起
動電流による負荷増によりNeが一時的に落ち込むため
ドライバビリティが悪化するが、本実施例によれば、高
負荷運転時はTWcが低温のうちからウォータポンプ1
4が作動するため、加速途中でウォータポンプ14が作
動してドライバビリティが悪化するといった不具合を生
じない。また、TWeがTWesより低いときはS4の
ステップでの高負荷判定は行われず、高負荷運転状態に
なってもTWcが後記する如く比較的高温になるまでは
ウォータポンプ14が作動せず、エンジン低温時の暖機
性能が損なわれることはない。
Here, if the water pump 14 operates during acceleration due to high-load operation, the drive current of the water pump 14 will increase the load, and Ne will drop temporarily, deteriorating the drivability, but according to the present embodiment. During high load operation, the water pump 1
Since 4 operates, there is no problem that the water pump 14 operates during acceleration and driveability deteriorates. Further, when TWe is lower than TWes, the high load determination is not performed in the step of S4, and even in the high load operation state, the water pump 14 does not operate until the TWc becomes relatively high temperature as described later, Warm-up performance at low temperatures is not impaired.

【0016】TWe<TWesの時やTWc<TWcs
の時や高負荷運転でない時はS8のステップに進み、こ
こでフラグFが「1」か否かを判別する。ウォータポン
プ14が作動しておらずF=0になっている時は、S9
のステップに進んでアイドリング運転か否かを判別し、
アイドリング運転でないときはS10のステップに進
み、ウォータポンプ14の作動開始の判別基準温度TW
onを比較的低い温度TWonL(例えば45℃)に設
定し、アイドリング運転であるときはS11のステップ
に進んでTWonをTWonLより高いTWonH(例
えば50℃)に設定する。そして、S12のステップで
TWcがTWon以上か否かを判別し、TWc<TWo
nのときはS13のステップに進んでウォータポンプ1
4を停止状態に維持すると共にS14のステップでフラ
グFを「0」とする処理を行い、一方、TWc≧TWo
nのときは上記したS5のステップに進んでtをtsに
セットし、更にS6のステップに進んでウォータポンプ
14を作動すると共にS7のステップでフラグFを
「1」とする処理を行う。
When TWe <TWes or TWc <TWcs
If it is, or if it is not high load operation, the process proceeds to step S8, where it is determined whether or not the flag F is "1". When the water pump 14 is not operating and F = 0, S9
Go to step to determine whether it is idling operation,
When the idling operation is not in progress, the routine proceeds to step S10, where the reference temperature TW for determining the operation start of the water pump 14 is started.
ON is set to a relatively low temperature TWonL (for example, 45 ° C.), and when idling, the process proceeds to step S11 to set TWon to TWonH (for example, 50 ° C.) higher than TWonL. Then, in step S12, it is determined whether TWc is TWon or more, and TWc <TWo.
If n, proceed to step S13 and
4 is maintained in the stopped state, and the process of setting the flag F to “0” is performed in step S14, while TWc ≧ TWo
When it is n, the process proceeds to the step S5 described above to set t to ts, further proceeds to the step S6 to operate the water pump 14, and the flag F is set to "1" in the step S7.

【0017】このようにしてウォータポンプ14が作動
すると、次回からはS8のステップでF=0と判別され
てS15のステップに進み、ここでt=0即ちウォータ
ポンプ14の作動開始から設定時間tsが経過したか否
かを判別し、t=0であれば、S16のステップに進ん
でアイドリング運転か否かを判別する。そして、アイド
リング運転でなければS17のステップに進み、ウォー
タポンプ14の作動停止の判別基準温度TWoffを比
較的低い温度TWoffL(例えば35℃)に設定し、
一方、アイドリング運転であるときはS18のステップ
に進んでTWoffをTWoffLより高いTWoff
H(例えば40℃)に設定する。次に、S19のステッ
プに進んでTWcがTWoff以上か否かを判別し、T
Wc≧TWoffのときはS6のステップに進んでウォ
ータポンプ14を継続して作動し、TWc<TWoff
になったときS13のステップに進んでウォータポンプ
14を停止する。
When the water pump 14 is operated in this way, from the next time, it is determined that F = 0 in the step S8 and the process proceeds to the step S15, where t = 0, that is, the set time ts from the start of the operation of the water pump 14. If t = 0, it is determined whether or not the idling operation is performed in step S16. Then, if it is not the idling operation, the process proceeds to step S17 to set the determination reference temperature TWoff for stopping the operation of the water pump 14 to a relatively low temperature TWoffL (for example, 35 ° C.),
On the other hand, when the engine is idling, the process proceeds to step S18, where TWoff is higher than TWoffL.
Set to H (eg 40 ° C.). Next, in step S19, it is determined whether TWc is TWoff or more, and T
When Wc ≧ TWoff, the routine proceeds to step S6, the water pump 14 is continuously operated, and TWc <TWoff
Then, the process proceeds to step S13, and the water pump 14 is stopped.

【0018】かくて、通常運転時は比較的低温でウォー
タポンプ14が作動し、吸気温が冷却水により効果的に
冷却されてドライバビリティが向上し、一方、アイドリ
ング運転時は比較的高温になるまでウォータポンプ14
が作動せず、充放電収支や燃費性の悪化が防止される。
また、アイドリング運転時にも比較的高温域ではあるが
ウォータポンプ14が作動するため、冷却水の過度の温
度が防止され、アイドリング運転から通常運転への移行
に際し冷却水の冷却に遅れを生じてドライバビリティが
悪化すると言った不具合を生じない。
Thus, during normal operation, the water pump 14 operates at a relatively low temperature, and the intake air temperature is effectively cooled by the cooling water to improve drivability. On the other hand, during idle operation, the temperature becomes relatively high. Up to water pump 14
Does not operate, preventing deterioration of charge and discharge balance and fuel efficiency.
Further, although the water pump 14 operates at a relatively high temperature even during idling operation, the excessive temperature of the cooling water is prevented, and there is a delay in cooling the cooling water during the transition from idling operation to normal operation. It does not cause the trouble that the ability deteriorates.

【0019】尚、S9やS16のステップではθthや
Neを判定パラメータとしてθth及びNeが所定値以
下のときアイドリングと判定するが、車速を判定パラメ
ータとして追加し、或いは車速のみを判定パラメータと
して低車速時にアイドリングと判定するようにしても良
い。
In steps S9 and S16, if θth or Ne is used as a determination parameter and θth and Ne are equal to or less than a predetermined value, it is determined that the vehicle is idling. It may be determined that the engine is idling.

【0020】ところで、ウォータポンプ14の作動開始
時、ラジエータ15で冷却されていた低温の冷却水の影
響により、TWcが図3に示す如く一時的にTWoff
を下回ることがあり、このようなTWcの一時的な低下
でウォータポンプ14の作動が停止されることを防止す
るため、上記した設定時間tsをTWcの一時低下を生
ずる時間に合わせて例えば4秒程度に設定し、ウォータ
ポンプ14の作動開始からtsが経過するまではTWc
に係りなくウォータポンプ14の作動を継続するように
した。
By the way, at the start of the operation of the water pump 14, TWc is temporarily TWoff as shown in FIG. 3 due to the influence of the low-temperature cooling water cooled by the radiator 15.
In order to prevent the operation of the water pump 14 from being stopped due to such a temporary decrease in TWc, the set time ts described above is set to, for example, 4 seconds in accordance with the time in which the TWc is temporarily decreased. TWc from the start of operation of the water pump 14 until ts elapses.
The water pump 14 continues to operate regardless of the above.

【0021】また、メンテナンス時にインタークーラ5
の水抜きを行う場合にはサービス端子をショートさせ
る。これによれば、S1のステップから直接S6のステ
ップに進んでウォータポンプ14が作動され、TWcと
は関係なく水抜きを行い得られるようになり便利であ
る。
In addition, at the time of maintenance, the intercooler 5
When draining water, short the service terminal. According to this, it is convenient that the water pump 14 is operated by directly proceeding from step S1 to step S6, and water can be drained regardless of TWc.

【0022】[0022]

【発明の効果】以上の説明から明らかなように、本発明
によれば、アイドリング中にインタークーラの冷却水温
が過度に上昇することを防止できると共に、エンジンの
運転状態に応じて基準温度を変更することにより、例え
ばアイドリング中は比較的高温域でウォータポンプを作
動させてウォータポンプの過剰な作動を防止することが
でき、充放電収支や燃費性の悪化を生ずることなくドラ
イバビリティを向上できる。
As is apparent from the above description, according to the present invention, it is possible to prevent the cooling water temperature of the intercooler from rising excessively during idling, and to change the reference temperature according to the operating state of the engine. By doing so, for example, during idling, the water pump can be operated in a relatively high temperature range to prevent excessive operation of the water pump, and the drivability can be improved without deteriorating the charge / discharge balance and fuel economy.

【図面の簡単な説明】[Brief description of drawings]

【図1】 本発明装置の一例の系統図FIG. 1 is a system diagram of an example of the device of the present invention.

【図2】 ウォータポンプの制御プログラムを示すフロ
ーチャート
FIG. 2 is a flowchart showing a water pump control program.

【図3】 ウォータポンプの作動当初の水温変化を示す
グラフ
FIG. 3 is a graph showing changes in water temperature at the beginning of operation of the water pump.

【符号の説明】[Explanation of symbols]

5 インタークーラ 10 電子制御回路 13 冷却水回路 14 ウォータポ
ンプ 23 水温センサ
5 Intercooler 10 Electronic control circuit 13 Cooling water circuit 14 Water pump 23 Water temperature sensor

───────────────────────────────────────────────────── フロントページの続き (72)発明者 大長 尚 埼玉県和光市中央1丁目4番1号 株式会 社本田技術研究所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Ocho, 4-1-1 Chuo, Wako-shi, Saitama, Ltd.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 インタークーラの冷却水回路に介設され
る電動式ウォータポンプの制御装置であって、冷却水温
を検出する手段と、該冷却水温を基準温度と比較してウ
ォータポンプを作動するか否かの判定を行う手段とを備
えると共に、エンジンの運転状態に応じて前記基準温度
を変更する手段を備えることを特徴とするインタークー
ラのウォータポンプ制御装置。
1. A controller for an electric water pump provided in a cooling water circuit of an intercooler, comprising means for detecting a cooling water temperature and operating the water pump by comparing the cooling water temperature with a reference temperature. A water pump control device for an intercooler, comprising: a means for determining whether or not it is included, and a means for changing the reference temperature according to an operating state of the engine.
JP26621492A 1992-10-05 1992-10-05 Intercooler water pump controller Expired - Fee Related JP3156207B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26621492A JP3156207B2 (en) 1992-10-05 1992-10-05 Intercooler water pump controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26621492A JP3156207B2 (en) 1992-10-05 1992-10-05 Intercooler water pump controller

Publications (2)

Publication Number Publication Date
JPH06117259A true JPH06117259A (en) 1994-04-26
JP3156207B2 JP3156207B2 (en) 2001-04-16

Family

ID=17427849

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26621492A Expired - Fee Related JP3156207B2 (en) 1992-10-05 1992-10-05 Intercooler water pump controller

Country Status (1)

Country Link
JP (1) JP3156207B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6243642B1 (en) * 1999-03-31 2001-06-05 Detroit Diesel Corporation System and method for detecting cold engine operation
JP2008169750A (en) * 2007-01-11 2008-07-24 Toyota Motor Corp Control device for electric water pump
CN103334829A (en) * 2013-06-28 2013-10-02 安徽江淮汽车股份有限公司 Intercooler system
CN106545489A (en) * 2016-09-30 2017-03-29 广西大学 A kind of water pump drains the protection circuit of autostop
JP2018076810A (en) * 2016-11-09 2018-05-17 株式会社Subaru Vehicular cooling device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6243642B1 (en) * 1999-03-31 2001-06-05 Detroit Diesel Corporation System and method for detecting cold engine operation
US6445997B2 (en) 1999-03-31 2002-09-03 Detroit Diesel Corporation Controller and storage medium for detecting cold engine operation
JP2008169750A (en) * 2007-01-11 2008-07-24 Toyota Motor Corp Control device for electric water pump
JP4715755B2 (en) * 2007-01-11 2011-07-06 トヨタ自動車株式会社 Electric water pump control device
CN103334829A (en) * 2013-06-28 2013-10-02 安徽江淮汽车股份有限公司 Intercooler system
CN103334829B (en) * 2013-06-28 2015-06-10 安徽江淮汽车股份有限公司 Intercooler system
CN106545489A (en) * 2016-09-30 2017-03-29 广西大学 A kind of water pump drains the protection circuit of autostop
JP2018076810A (en) * 2016-11-09 2018-05-17 株式会社Subaru Vehicular cooling device
US10443481B2 (en) 2016-11-09 2019-10-15 Subaru Corporation Cooling apparatus for vehicle

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