JPH0244525U - - Google Patents
Info
- Publication number
- JPH0244525U JPH0244525U JP1988124975U JP12497588U JPH0244525U JP H0244525 U JPH0244525 U JP H0244525U JP 1988124975 U JP1988124975 U JP 1988124975U JP 12497588 U JP12497588 U JP 12497588U JP H0244525 U JPH0244525 U JP H0244525U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- hold
- brake
- automatic transmission
- clutch
- 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
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 239000000446 fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Landscapes
- Control Of Transmission Device (AREA)
Description
第１図はこの考案のクレーム対応図、第２図は
この考案の実施例を示す概略構成図、第３図は同
じくホールドバルブの断面図、第４，５図は同じ
く制御動作の一例を示すフローチヤート、第６図
は時間とトルクとの関係を示す特性図、第７図は
本考案の作用を説明するためのタイムチヤート、
第８図はオリフイス付バルブの構成図、第９図は
エアブースタの構成図、第１０図は本考案の他の
実施例の作用を説明するためのフローチヤート、
第１１図は本考案の他の実施例の特性説明図、第
１２図は従来例の構成図、第１３図は従来例のブ
ロツク図である。
１０……デイーゼルエンジン、１１……燃料噴
射ポンプ、１１ａ……ガバナ、１２……エンジン
回転センサ、１３……ガバナ制御装置、１４……
アクセルペダル、１５……負荷センサ、２０……
クラツチ、２１……クラツチ位置センサ、２２…
…クラツチ断続装置、３０……変速機、３１……
メインシヤフト、３２……車速センサ、３３……
カウンタシヤフト回転センサ、３４……シフト位
置センサ、３５……ギヤシフト装置、４０……制
御装置、４０Ａ……マイクロコンピユータ、４１
……シフトチエンジ判定回路、４２……シフトチ
エンジ制御回路、４３……エンジン制御回路、４
４……クラツチ断続制御回路、４５……トランス
ミツシヨン制御回路、５０……マイクロプロセツ
サ、５１……メモリ、５２……インタフエース、
５３……指令スイツチ、６３……エンジンキース
イツチ、６４……ブレーキペダル、６５……ブレ
ーキバルブ、６６Ａ，６６Ｂ……エアリザーバ、
６７Ａ，６７Ｂ……エアブースタ、６８Ａ，６８
Ｂ……信号圧ライン、６９Ａ，６９Ｂ……ホール
ドバルブ、７０……作動圧ライン、７２……マグ
ネチツクバルブ、７５Ａ〜７５Ｆ……ブレーキ装
置、７６……メインリザーバ、７７……コンプレ
ツサ、７８……圧力スイツチ、７９Ａ，７９Ｂ…
…ブレーキ回路、８０……作動室、８０Ａ，８０
Ｂ……オリフイス付バルブ、８２……スプリング
、８３……バルブシート、８４，８５……ポート
、８６……座、８７……スプリング、９０……エ
ア圧検出スイツチ。
Fig. 1 is a diagram corresponding to the claims of this invention, Fig. 2 is a schematic configuration diagram showing an embodiment of this invention, Fig. 3 is a sectional view of the hold valve, and Figs. 4 and 5 similarly show an example of control operation. Flowchart, Figure 6 is a characteristic diagram showing the relationship between time and torque, Figure 7 is a time chart for explaining the operation of the present invention,
Fig. 8 is a block diagram of a valve with an orifice, Fig. 9 is a block diagram of an air booster, and Fig. 10 is a flow chart for explaining the operation of another embodiment of the present invention.
FIG. 11 is a characteristic explanatory diagram of another embodiment of the present invention, FIG. 12 is a configuration diagram of a conventional example, and FIG. 13 is a block diagram of a conventional example. 10... Diesel engine, 11... Fuel injection pump, 11a... Governor, 12... Engine rotation sensor, 13... Governor control device, 14...
Accelerator pedal, 15...Load sensor, 20...
Clutch, 21...Clutch position sensor, 22...
...Clutch disconnection device, 30...Transmission, 31...
Main shaft, 32...Vehicle speed sensor, 33...
Counter shaft rotation sensor, 34...Shift position sensor, 35...Gear shift device, 40...Control device, 40A...Microcomputer, 41
...Shift change determination circuit, 42...Shift change control circuit, 43...Engine control circuit, 4
4...Clutch discontinuation control circuit, 45...Transmission control circuit, 50...Microprocessor, 51...Memory, 52...Interface,
53... Command switch, 63... Engine key switch, 64... Brake pedal, 65... Brake valve, 66A, 66B... Air reservoir,
67A, 67B...Air booster, 68A, 68
B... Signal pressure line, 69A, 69B... Hold valve, 70... Operating pressure line, 72... Magnetic valve, 75A to 75F... Brake device, 76... Main reservoir, 77... Compressor, 78... ...Pressure switch, 79A, 79B...
...Brake circuit, 80...Working chamber, 80A, 80
B... Valve with orifice, 82... Spring, 83... Valve seat, 84, 85... Port, 86... Seat, 87... Spring, 90... Air pressure detection switch.
Claims (1)
基づいて、発進時にメカニカルクラツチを半クラ
ツチ状態に保ちながら接続するクラツチ制御回路
を備えた自動変速車両において、ブレーキバルブ
の作動を検出する手段と、車速を検出する手段と
、発進時にクラツチの接続を検出する手段と、低
摩擦路面での走行を指令する指令スイツチと、ブ
レーキバルブからの信号圧をエアブースタに供給
する信号圧ラインに設けられたホールドバルブと
、このホールドバルブの作動圧ラインに介装され
たマグネツトバルブと、前記運転状態検出手段か
らの検出信号に基づいて、指令スイツチ作動時で
かつブレーキバルブの閉作動時に車速が零のとき
はマグネツトバルブを開いてホールドバルブに作
動圧を漸減しながら供給し、発進時にクラツチの
接続を検出したときはマグネツトバルブを閉じて
ホールドバルブ側の作動圧を大気に開放するブレ
ーキホールド制御手段とを有することを特徴とす
る自動変速車両の制動装置。 (2) ブレーキホールド制御手段は、マグネツト
バルブをデユーテイ制御で開閉する手段である請
求項１記載の自動変速車両の制動装置。 (3) ブレーキホールド制御手段は、ホールドバ
ルブとブレーキバルブとを結ぶ通路中に挿入され
たオリフイス付バルブを含み、マグネツトバルブ
開作動時にオリフイス付バルブを開いて前記通路
中にオリフイスを挿入する手段である請求項１記
載の自動変速車両の制動装置。 (4) ブレーキホールド制御手段は、ホールドバ
ルブの作動圧が所定値まで減少したことを検出す
る作動圧スイツチを含み、作動圧スイツチの検出
出力によりオリフイス付バルブを開く手段である
請求項３記載の自動変速車両の制動装置。[Scope of Claim for Utility Model Registration] (1) In an automatic transmission vehicle equipped with a clutch control circuit that connects a mechanical clutch while keeping it in a half-clutch state at the time of starting based on a detection signal from a driving state detection means of the vehicle, A means for detecting valve operation, a means for detecting vehicle speed, a means for detecting clutch engagement at the time of starting, a command switch for commanding driving on a low friction road surface, and a signal pressure from the brake valve to an air booster. Based on the detection signal from the hold valve provided in the supply signal pressure line, the magnetic valve interposed in the operating pressure line of this hold valve, and the operating state detection means, when the command switch is activated and the brake is activated. When the vehicle speed is zero when the valve is closed, the magnetic valve is opened and the operating pressure is gradually reduced and supplied to the hold valve. When the clutch connection is detected when starting, the magnetic valve is closed and the hold valve is operated. 1. A braking device for an automatic transmission vehicle, comprising: brake hold control means for releasing pressure to the atmosphere. (2) The braking system for an automatic transmission vehicle according to claim 1, wherein the brake hold control means is a means for opening and closing a magnetic valve under duty control. (3) The brake hold control means includes a valve with an orifice inserted in a passage connecting the hold valve and the brake valve, and means for opening the valve with the orifice and inserting the orifice into the passage when the magnetic valve is opened. The braking device for an automatic transmission vehicle according to claim 1. (4) The brake hold control means includes a working pressure switch that detects that the working pressure of the hold valve has decreased to a predetermined value, and is means for opening the valve with an orifice based on the detection output of the working pressure switch. Braking device for automatic transmission vehicles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988124975U JPH0635759Y2 (en) | 1988-09-22 | 1988-09-22 | Braking device for automatic transmission vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988124975U JPH0635759Y2 (en) | 1988-09-22 | 1988-09-22 | Braking device for automatic transmission vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0244525U true JPH0244525U (en) | 1990-03-27 |
| JPH0635759Y2 JPH0635759Y2 (en) | 1994-09-21 |
Family
ID=31375171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988124975U Expired - Fee Related JPH0635759Y2 (en) | 1988-09-22 | 1988-09-22 | Braking device for automatic transmission vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0635759Y2 (en) |
-
1988
- 1988-09-22 JP JP1988124975U patent/JPH0635759Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0635759Y2 (en) | 1994-09-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |