JPH0323631U

JPH0323631U -

Info

Publication number: JPH0323631U
Application number: JP8390289U
Authority: JP
Priority date: 1989-07-17
Filing date: 1989-07-17
Publication date: 1991-03-12

Description

[Brief explanation of drawings]

第１図は本考案の一実施例に係る駆動輪スリツ
プ制御装置の全体構成図、第２図は駆動輪スリツ
プ検出用電子コントロールユニツトのブロツク構
成図、第３図は駆動輪スリツプ制御を実行するプ
ログラムのフローチヤート、第４図はスリツプレ
ベルＳＬＶＬに応じたトラクシヨン（ＴＣ）レベ
ルを示す図、第５図はＴＣレベルに応じたトラク
シヨン制御の内容を決定するためのテーブルの一
例を示す図、第６図はフユーエルカツト後増量処
理のための制御プログラムの一例を示すフローチ
ヤート、第７図は該プログラムで適用される係数
ＫＴＷＡＦＣのテーブルの一例を示す図、第８図
は同じく漸減値ＤＫＴＷＡＦＣの設定のためのテ
ーブルの一例を示す図、第９図は４気筒の場合を
例に採つて示すフユーエルカツト後増量の態様の
一例を示す図、第１０図は増量値の漸減の状態を
示すための説明図である。１……内燃エンジン、５……燃料供給制御用電
子コントロールユニツト（ＥＮＧ−ＥＣＵ）、６
……燃料噴射弁、１０……エンジン水温（ＴＷ）
センサ、２０……駆動輪スリツプ検出用電子コン
トロールユニツト（ＴＣＳ−ＥＣＵ）、２１，２
２……駆動輪速度センサ、２３，２４……従動輪
速度センサ。 Fig. 1 is an overall block diagram of a drive wheel slip control device according to an embodiment of the present invention, Fig. 2 is a block diagram of an electronic control unit for detecting drive wheel slip, and Fig. 3 is a block diagram of an electronic control unit for detecting drive wheel slip. Flowchart of the program. FIG. 4 is a diagram showing the traction (TC) level according to the slip level SLVL. FIG. 5 is a diagram showing an example of a table for determining the content of traction control according to the TC level. Figure 6 is a flowchart showing an example of a control program for increasing the amount after fuel cut, Figure 7 is a diagram showing an example of a table of the coefficient KTWAFC applied in the program, and Figure 8 is a diagram showing the setting of the gradual decrease value DKTWAFC. FIG. 9 is a diagram showing an example of an increase in amount after fuel cut, taking the case of a 4-cylinder engine as an example, and FIG. 10 is an explanatory diagram showing a state of gradual decrease in the increase value. It is. 1... Internal combustion engine, 5... Electronic control unit for fuel supply control (ENG-ECU), 6
...Fuel injection valve, 10...Engine water temperature (TW)
Sensor, 20... Electronic control unit (TCS-ECU) for detecting drive wheel slip, 21, 2
2... Drive wheel speed sensor, 23, 24... Driven wheel speed sensor.

Claims

[Scope of utility model registration request]

a drive wheel slip state detection means for detecting a slip state of a drive wheel of a vehicle; and when slip of the drive wheel is detected, fuel supplied to an internal combustion engine connected to the drive wheel is controlled in a cylinder according to the slip state. A drive wheel slip control device comprising: a fuel cutoff means that shuts off the cylinder when the fuel cutoff means is activated; and a fuel increase means that increases the amount of fuel for the cylinder in which the fuel cutoff means is activated when the slip state of the drive wheel is reduced,
an engine temperature detection means for detecting the temperature of the internal combustion engine; a fuel increase value setting means for setting an increase value of the fuel increase value according to the output of the engine temperature detection means; and an increase value of the fuel increase value setting means. A drive wheel slip control device comprising: a gradual decrease value setting means for setting a gradual decrease value that gradually decreases the increase value from the increase value every time fuel is supplied.