JPH076419B2 - Acceleration control device for diesel engine tower mounted vehicle - Google Patents
Acceleration control device for diesel engine tower mounted vehicleInfo
- Publication number
- JPH076419B2 JPH076419B2 JP60087265A JP8726585A JPH076419B2 JP H076419 B2 JPH076419 B2 JP H076419B2 JP 60087265 A JP60087265 A JP 60087265A JP 8726585 A JP8726585 A JP 8726585A JP H076419 B2 JPH076419 B2 JP H076419B2
- Authority
- JP
- Japan
- Prior art keywords
- acceleration
- diesel engine
- control device
- injection amount
- vehicle
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Landscapes
- High-Pressure Fuel Injection Pump Control (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、ディーゼルエンジン搭載車両の加速度制御装
置に関するものである。Description: TECHNICAL FIELD The present invention relates to an acceleration control device for a vehicle equipped with a diesel engine.
（従来技術） 一般に、荷役を運搬するトラック等のディーゼルエンジ
ン搭載車両は、荷役の重量によって全体重量が変化する
ことは知られている。(Prior Art) It is generally known that a diesel engine-equipped vehicle, such as a truck for carrying cargo, changes its overall weight depending on the weight of the cargo.
（発明が解決しようとする課題） ところが、そのような車両では、空車時には満載時に比
べて軽量となり、満載時と同程度の燃料噴射量である
と、必要以上に加速度合が高まり、加速時に加速ショッ
クを受けるおそれがある。特に、例えば特開昭57−2101
30号公報に記載されるような高出力の過給機付エンジン
搭載車両では、高駆動トルク伝達の点から、車両のアク
スル系の剛性を強くしているので、駆動トルクがタイヤ
まで敏感に伝達され、軽量状態での加速時に加速ショッ
クを受けやすい。(Problems to be solved by the invention) However, in such a vehicle, when the vehicle is empty, the weight is lighter than that in the fully loaded state, and if the fuel injection amount is the same as that in the fully loaded state, the acceleration rate increases more than necessary, and the vehicle accelerates during acceleration. May be shocked. Particularly, for example, JP-A-57-2101
In a vehicle equipped with a high-powered engine with a supercharger as described in Japanese Patent Publication No. 30, the rigidity of the vehicle axle system is increased from the viewpoint of high drive torque transmission, so the drive torque is transmitted to the tires sensitively. Therefore, it is easy to receive acceleration shock when accelerating in a lightweight state.
本発明は、ディーゼルエンジン搭載車両において、軽量
状態での加速時における加速ショックを緩和すると共に
燃費の改善を図った加速度制御装置を提供することを目
的とする。An object of the present invention is to provide an acceleration control device for a vehicle equipped with a diesel engine, which reduces an acceleration shock at the time of acceleration in a lightweight state and improves fuel efficiency.
（課題を解決するための手段） 本発明は、ディーゼルエンジンを搭載する車両に用いら
れるディーゼルエンジン搭載車両の加速度制御装置を前
提とするもので、上記車両の積載重量を検出する荷重検
出手段と、加速時を検出する加速要求検出手段と、上記
両手段の出力を受け軽量状態での加速時にのみ最大燃料
噴射量を制限する噴射量制限手段とを備えている構成と
する。(Means for Solving the Problems) The present invention is premised on an acceleration control device for a vehicle equipped with a diesel engine, which is used for a vehicle equipped with a diesel engine, and includes load detection means for detecting a loaded weight of the vehicle, The acceleration request detecting means for detecting the acceleration time and the injection amount limiting means for receiving the outputs of the both means and limiting the maximum fuel injection amount only during the acceleration in the light weight state are provided.
（作用） 軽量状態での加速時にのみ最大燃料噴射量が制限され、
加速度合が抑制され、加速ショックが緩和されると共
に、燃費の低減が図られる。(Function) The maximum fuel injection amount is limited only when accelerating in a lightweight state,
Acceleration is suppressed, acceleration shock is alleviated, and fuel consumption is reduced.
（実施例） 以下、本発明の実施例を図面に沿って説明する。(Example) Hereinafter, the Example of this invention is described along drawing.
ディーゼルエンジン搭載車両の加速度制御装置の全体構
成を示す第１図において、１は４気筒ディーゼルエンジ
ンのエンジン本体で、上流側からエアクリーナ（図示せ
ず）、コンプレックス過給機２及びインタークーラ３が
順に配設された吸気通路４と、排気通路５とが接続され
ている。In FIG. 1 showing the overall configuration of an acceleration control device for a vehicle equipped with a diesel engine, 1 is an engine body of a 4-cylinder diesel engine, and an air cleaner (not shown), a complex supercharger 2 and an intercooler 3 are arranged in this order from the upstream side. The arranged intake passage 4 and exhaust passage 5 are connected to each other.
６は列型燃料噴射ポンプで、ブーストコンペンセータ７
を備えている。ブーストコンペンセータ７は周知の構造
を有し、接続通路８を介して吸気通路４より過給圧が導
入され、その過給圧に応じて上記燃料噴射ポンプ６のコ
ントロールラック（図示せず）の位置を制御し、最大燃
料噴射量を調整するものである。即ち、過給圧の上昇に
よりコントロールラックが燃料増量方向へ移動するよう
に制御できるようになっている。6 is a row type fuel injection pump, and a boost compensator 7
Is equipped with. The boost compensator 7 has a well-known structure, a supercharging pressure is introduced from the intake passage 4 through the connecting passage 8, and a position of a control rack (not shown) of the fuel injection pump 6 is determined according to the supercharging pressure. Is controlled to adjust the maximum fuel injection amount. That is, the control rack can be controlled so as to move in the fuel increasing direction by the increase of the supercharging pressure.
上記接続通路８には電磁式の開閉弁９が介設されてい
る。開閉弁９は制御回路10に電気的に連係され、該制御
回路10が、サスペンションを構成する板バネ11（リーフ
スプリング）に付設されそのたわみ度合により車両の積
載重量を検出する荷重検出センサ12及び加速時を検出す
る加速度センサ13の出力を受け、一定積載重量以下の軽
量状態での加速時であると判定すると、開閉弁９に信号
を送って該開閉弁９を閉じるようになっている（第２図
参照）。An electromagnetic opening / closing valve 9 is provided in the connection passage 8. The on-off valve 9 is electrically linked to a control circuit 10. The control circuit 10 is attached to a leaf spring 11 (leaf spring) that constitutes a suspension, and a load detection sensor 12 that detects the loaded weight of a vehicle by the degree of deflection thereof and When the output of the acceleration sensor 13 for detecting the acceleration time is received and it is determined that the acceleration time is in a light weight state below a certain load weight, a signal is sent to the opening / closing valve 9 to close the opening / closing valve 9 ( (See FIG. 2).
上記のように構成すれば、軽量状態での加速時には、荷
重検出センサ12及び加速度センサ13の出力を受けた制御
回路10が一定積載重量以下の軽量状態での加速時である
と判定するので、制御回路10によって開閉弁９に信号が
送られ、それによって開閉弁９が閉じ、接続通路８の連
通が遮断される。その結果、ブーストコンペンセータ７
への過給圧の導入がなくなり、燃料噴射ポンプ６のコン
トロールラックの移動が規制され、最大燃料噴射量が制
限される。If configured as described above, at the time of acceleration in a lightweight state, the control circuit 10 that receives the outputs of the load detection sensor 12 and the acceleration sensor 13 determines that the acceleration is in a lightweight state below a certain load weight, A signal is sent to the on-off valve 9 by the control circuit 10, whereby the on-off valve 9 is closed and the communication of the connection passage 8 is cut off. As a result, boost compensator 7
The supercharging pressure is not introduced into the fuel injection pump 6, the movement of the control rack of the fuel injection pump 6 is restricted, and the maximum fuel injection amount is restricted.
従って、軽量状態での加速時における加速度合が抑制さ
れ、加速ショックが緩和されると共に、燃費の低減が図
られる。Therefore, the acceleration rate at the time of acceleration in the lightweight state is suppressed, the acceleration shock is alleviated, and the fuel consumption is reduced.
尚、上記実施例では、軽量状態での加速時に過給圧の導
入を開閉弁９にて完全に禁止するようにしているが、必
ずしもその必要はなく、過給圧の導入を制限するだけで
もよい。例えば、開閉弁９の代わりに流量制御弁を用
い、軽量状態での加速時初期にブーストコンペンセータ
７への過給圧の導入を禁止し、それから過給圧を徐々に
直線的に増加させて導入するようにしてもよい。In the above embodiment, the opening / closing valve 9 completely prohibits the introduction of the supercharging pressure during acceleration in a lightweight state, but it is not always necessary and the introduction of the supercharging pressure may be limited. Good. For example, a flow control valve is used instead of the on-off valve 9, the introduction of the supercharging pressure to the boost compensator 7 is prohibited at the initial stage of acceleration in a lightweight state, and then the supercharging pressure is gradually increased linearly. You may do it.
上記実施例はブーストコンペンセータ７を備えた過給機
付ディーゼルエンジン搭載車両に適用した例であるが、
そのほか、電子制御式噴射ポンプを備えたディーゼルエ
を備えたディーゼルエンジン搭載車両にも適用すること
ができる。即ち、第３図に示すように、燃料噴射ポンプ
21の制御手段22は、噴射量演算手段23と、補正量演算手
段24とにより構成されている。噴射量演算手段23は、エ
ンジン回転数信号とアクセル開度信号とにより基本噴射
量を演算すると共に、エンジン冷却水の水温信号、過給
圧信号のほか、積載重量信号に応じて補正量演算手段24
にて演算された補正量と基本噴射量とにより最終噴射量
を演算するものである。積載重量に応じた補正は、例え
ば第４図に示すように、積載重量が第１設定値P01を越
えると、補正係数が０から直線的に増大し、第２設定値
P02を越えると１（一定）としている。これにより、軽
量状態での加速時には積載重量に応じて補正係数が１以
下となるので、最大噴射量は低減され（第５図参照）、
加速ショックは緩和される。The above embodiment is an example applied to a vehicle equipped with a diesel engine equipped with a supercharger equipped with the boost compensator 7.
In addition, it can also be applied to a vehicle equipped with a diesel engine equipped with a diesel engine equipped with an electronically controlled injection pump. That is, as shown in FIG. 3, the fuel injection pump
The control unit 22 of 21 is composed of an injection amount calculation unit 23 and a correction amount calculation unit 24. The injection amount calculation means 23 calculates the basic injection amount based on the engine speed signal and the accelerator opening signal, and also the correction amount calculation means according to the loaded weight signal in addition to the engine cooling water temperature signal and the boost pressure signal. twenty four
The final injection amount is calculated based on the correction amount calculated in step 1 and the basic injection amount. For example, as shown in FIG. 4, when the loaded weight exceeds the first set value P 01 , the correction coefficient increases linearly from 0 and the second set value is corrected.
It is 1 (constant) when P 02 is exceeded. As a result, the correction coefficient becomes 1 or less according to the loaded weight during acceleration in the light weight state, so the maximum injection amount is reduced (see FIG. 5),
Acceleration shock is alleviated.
（発明の効果） 本発明は、上記のように、軽量状態での加速時にのみ最
大燃料噴射量を制限し加速度合を小さくするようにした
から、剛性の強いアクスル系を有する車両であっても、
加速ショックを緩和すると共に、燃費の低減を図ること
ができる。(Effects of the Invention) As described above, the present invention limits the maximum fuel injection amount and reduces the acceleration rate only when accelerating in a lightweight state. Therefore, even in a vehicle having a highly rigid axle system. ,
It is possible to reduce the acceleration shock and reduce fuel consumption.
図面は本発明の実施例を示し、第１図はディーゼルエン
ジン搭載車両の加速度制御装置の全体構成図、第２図は
積載重量と開閉弁の開閉状態との関係を示す図、第３図
は変形例における燃料噴射ポンプと制御手段との関係を
示す図、第４図は積載重量と補正係数との関係を示す
図、第５図はエンジン回転数と噴射量との関係を示す図
である。 １……エンジン本体、２……過給機、４……吸気通路、
６……列型燃料噴射ポンプ、７……ブーストコンペンセ
ータ、９……開閉弁、10……制御回路（噴射量制限手
段）、12……荷重検出センサ（荷重検出手段）、13……
加速度センサ（加速要求検出手段）、21……燃料噴射ポ
ンプ、22……制御手段FIG. 1 shows an embodiment of the present invention, FIG. 1 is an overall configuration diagram of an acceleration control device for a vehicle equipped with a diesel engine, FIG. 2 is a diagram showing a relationship between a loaded weight and an open / close state of an on-off valve, and FIG. FIG. 4 is a diagram showing a relation between a fuel injection pump and a control means in a modification, FIG. 4 is a diagram showing a relation between a loaded weight and a correction coefficient, and FIG. 5 is a diagram showing a relation between an engine speed and an injection amount. . 1 ... Engine body, 2 ... Supercharger, 4 ... Intake passage,
6 ... In-line fuel injection pump, 7 ... Boost compensator, 9 ... Open / close valve, 10 ... Control circuit (injection amount limiting means), 12 ... Load detection sensor (load detection means), 13 ...
Acceleration sensor (acceleration request detection means), 21 ... Fuel injection pump, 22 ... Control means
Claims (1)
られるディーゼルエンジン搭載車両の加速度制御装置で
あって、 上記車両の積載重量を検出する荷重検出手段と、加速時
を検出する加速要求検出手段と、上記両手段の出力を受
け軽量状態での加速時にのみ最大燃料噴射量を制限する
噴射量制限手段とを備えていることを特徴とするディー
ゼルエンジン搭載車両の加速度制御装置。1. An acceleration control device for a vehicle equipped with a diesel engine, which is used in a vehicle equipped with a diesel engine, comprising: load detecting means for detecting a loaded weight of the vehicle; and acceleration request detecting means for detecting an acceleration time. An acceleration control device for a vehicle equipped with a diesel engine, comprising: injection amount limiting means for limiting the maximum fuel injection amount only when accelerating in a light weight state by receiving outputs from both means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60087265A JPH076419B2 (en) | 1985-04-22 | 1985-04-22 | Acceleration control device for diesel engine tower mounted vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60087265A JPH076419B2 (en) | 1985-04-22 | 1985-04-22 | Acceleration control device for diesel engine tower mounted vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61244842A JPS61244842A (en) | 1986-10-31 |
| JPH076419B2 true JPH076419B2 (en) | 1995-01-30 |
Family
ID=13909935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60087265A Expired - Lifetime JPH076419B2 (en) | 1985-04-22 | 1985-04-22 | Acceleration control device for diesel engine tower mounted vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH076419B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05199620A (en) * | 1992-01-14 | 1993-08-06 | Toyota Autom Loom Works Ltd | Speed regulator for towing tractor |
| JP2007040185A (en) * | 2005-08-03 | 2007-02-15 | Shin Caterpillar Mitsubishi Ltd | Output control device and output control method for working machine |
| CN103573435B (en) * | 2012-07-31 | 2017-08-25 | 酷敏斯Ip公司 | Fuel economy control system based on load |
| JP2016094883A (en) * | 2014-11-14 | 2016-05-26 | 株式会社豊田自動織機 | Fuel injection control device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5968151U (en) * | 1982-10-29 | 1984-05-09 | 日野自動車株式会社 | engine control device |
-
1985
- 1985-04-22 JP JP60087265A patent/JPH076419B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61244842A (en) | 1986-10-31 |
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