JPH0323627U - - Google Patents
Info
- Publication number
- JPH0323627U JPH0323627U JP1989083899U JP8389989U JPH0323627U JP H0323627 U JPH0323627 U JP H0323627U JP 1989083899 U JP1989083899 U JP 1989083899U JP 8389989 U JP8389989 U JP 8389989U JP H0323627 U JPH0323627 U JP H0323627U
- Authority
- JP
- Japan
- Prior art keywords
- status signal
- drive wheel
- level signal
- signal
- abnormal
- 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
- 230000005856 abnormality Effects 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims 3
- 230000001133 acceleration Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
Landscapes
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Description
第１図は本考案の一実施例に係る駆動輪スリツ
プ制御装置及び制御装置の異常処理装置の全体構
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（ＴＣＳ−ＥＣＵ）の内部構成を
示すブロツク図、第３図は駆動輪スリツプ制御を
行うプログラムフローチヤート、第４図は駆動輪
スリツプ制御装置内部の第１の信号線（ＴＣＦＣ
線）の異常を検知するプログラムのフローチヤー
ト、第５図はスリツプレベル（ＳＬＶＬ）とトラ
クシヨン制御レベル及びステータス信号のレベル
との関係を示す図、第６図はトラクシヨン制御レ
ベル（ＴＣレベル）に応じて空燃比リーン化を行
う気筒及びフユエルカツトを行う気筒を決定する
ためのテーブルを示す図、第７図はＴＣＦＣ線の
異常検知時のＴＣレベル選定を行うプログラムの
フローチヤート、第８図はＴＣＳ−ＥＣＵの起動
チエツクを行なうプログラムのフローチヤート、
第９図は駆動輪スリツプ制御装置内部の第２の信
号線（ＴＣＳＴＢ線）の異常及びＴＣＦＣ線の中
間値固定異常を検知するプログラムのフローチヤ
ート、第１０図はトラクシヨン制御を停止すべき
か否かを判定するプログラムのフローチヤート、
第１１図は駆動輪スリツプ制御装置内部の第３の
信号線（ＴＣＩＮＨ線）に出力する信号を制御す
るプログラムのフローチヤート、第１２図はＴＣ
ＩＮＨ線上の信号（ＴＣ指令信号）に応じた制御
の一例を示す図である。
１……内燃エンジン（原動機）、５……エンジ
ン制御用電子コントロールユニツト（ＥＮＧ−Ｅ
ＣＵ）、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 configuration diagram of a drive wheel slip control device and an abnormality processing device for the control device according to an embodiment of the present invention, and FIG. 2 is an internal configuration of a drive wheel slip detection electronic control unit (TCS-ECU). 3 is a program flowchart for controlling drive wheel slip, and FIG. 4 is a block diagram of the first signal line (TCFC) inside the drive wheel slip control device.
Figure 5 is a flowchart of a program to detect an abnormality in the line). Figure 5 is a diagram showing the relationship between the slip level (SLVL) and the traction control level and status signal level. Figure 6 is a diagram showing the relationship between the slip level (SLVL) and the traction control level and status signal level. Figure 7 is a flowchart of a program for selecting the TC level when an abnormality is detected in the TCFC line, and Figure 8 is a table for determining the cylinders in which the air-fuel ratio is leanened and the cylinders in which the fuel cut is performed. Flowchart of a program that performs an ECU startup check.
Fig. 9 is a flowchart of a program that detects an abnormality in the second signal line (TCSTB line) inside the drive wheel slip control device and an abnormality in fixing the intermediate value of the TCFC line, and Fig. 10 shows whether or not traction control should be stopped. A flowchart of a program that determines
Figure 11 is a flowchart of a program that controls the signal output to the third signal line (TCINH line) inside the drive wheel slip control device, and Figure 12 is a flowchart of a program that controls the signal output to the third signal line (TCINH line) inside the drive wheel slip control device.
FIG. 6 is a diagram showing an example of control according to a signal (TC command signal) on the INH line. 1...Internal combustion engine (prime mover), 5...Electronic control unit for engine control (ENG-E)
CU), 20... Electronic control unit for drive wheel slip detection (TCS-ECU), 21, 2
2... Drive wheel speed sensor, 23, 24... Driven wheel speed sensor.
Claims (1)
駆動輪の所定のスリツプ状態のときにステータス
信号を発生するステータス信号発生手段と、前記
駆動輪のスリツプ状態を表わすレベル信号を発生
するレベル信号発生手段と、前記ステータス信号
及びレベル信号が入力され、該ステータス信号と
レベル信号の論理状態が異常であるときに前記ス
テータス信号の異常と判定する異常判定手段とを
備えた駆動輪スリツプ制御装置の異常処理装置に
おいて、前記ステータス信号が異常と判定された
ときに、前記車両に搭載された原動機の運転状態
を判定し、該原動機の運転状態が加速以外の運転
状態であることが判定されるまでは前記レベル信
号に応じた駆動輪スリツプ制御を継続し、加速以
外の運転状態のときに以後の過剰スリツプ制御を
禁止する制御禁止手段を設けたことを特徴とする
駆動輪スリツプ制御装置の異常処理装置。 Status signal generating means for detecting an excessive slip condition of a driving wheel of a vehicle and generating a status signal when the driving wheel is in a predetermined slip condition; and a level signal generating means for generating a level signal representing the slip condition of the driving wheel. and an abnormality determining means that receives the status signal and the level signal and determines that the status signal is abnormal when the logical states of the status signal and the level signal are abnormal. In the processing device, when the status signal is determined to be abnormal, the operating state of the prime mover mounted on the vehicle is determined, and the operating state of the prime mover is determined to be an operating state other than acceleration. An abnormality processing device for a drive wheel slip control device, characterized in that the drive wheel slip control device continues the drive wheel slip control according to the level signal, and is provided with a control prohibiting means for prohibiting subsequent excessive slip control in a driving state other than acceleration. .
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989083899U JPH0734189Y2 (en) | 1989-07-17 | 1989-07-17 | Abnormality handling device for drive wheel slip controller |
| US07/553,041 US5065834A (en) | 1989-07-17 | 1990-07-16 | Driving wheel slip control system having failsafe function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989083899U JPH0734189Y2 (en) | 1989-07-17 | 1989-07-17 | Abnormality handling device for drive wheel slip controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0323627U true JPH0323627U (en) | 1991-03-12 |
| JPH0734189Y2 JPH0734189Y2 (en) | 1995-08-02 |
Family
ID=31631954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989083899U Expired - Lifetime JPH0734189Y2 (en) | 1989-07-17 | 1989-07-17 | Abnormality handling device for drive wheel slip controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0734189Y2 (en) |
-
1989
- 1989-07-17 JP JP1989083899U patent/JPH0734189Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0734189Y2 (en) | 1995-08-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |