JPS60172757A - Automatic transmission - Google Patents
Automatic transmissionInfo
- Publication number
- JPS60172757A JPS60172757A JP2730184A JP2730184A JPS60172757A JP S60172757 A JPS60172757 A JP S60172757A JP 2730184 A JP2730184 A JP 2730184A JP 2730184 A JP2730184 A JP 2730184A JP S60172757 A JPS60172757 A JP S60172757A
- Authority
- JP
- Japan
- Prior art keywords
- brake
- automatic transmission
- switch
- engine braking
- shift pattern
- 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
Landscapes
- Control Of Transmission Device (AREA)
Abstract
Description
【発明の詳細な説明】
不発朋は自動変速機、特に降坂路走行時エンジンブレー
キ用変速パターンを自動的に選ぶようにした自動変速機
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The invention relates to an automatic transmission, particularly an automatic transmission that automatically selects a shift pattern for engine braking when traveling downhill.
自動変速機は通常、車速相当信号及びエンジン負荷（ス
ロットル開度等）信号の組合せにより、例えば第２図に
示すような変速パターンに沿って自動変速するよう構成
される。An automatic transmission is normally configured to automatically shift gears according to a shift pattern as shown in FIG. 2, for example, based on a combination of a vehicle speed equivalent signal and an engine load (throttle opening, etc.) signal.
ところで、このような変速を降坂路走行時も行なうと、
エンジン負荷が小さいことから自動変速機は最高速段（
第２図では８速）を選択し続け、ギヤ比の関係上十分な
エンジンブレーキ効果を達成し得ない。このようが走行
時運転者は、マニュアルパルプを第２速エンジンブレー
キ走行（Ｉｌ）レンジ又は第１速エンジンブレーキ走行
（１）レンジにして自動変速機が第２速又は第１速を保
持するようにし、これによりエンジンブレーキが得られ
るよう手動操作する必要があった。By the way, if you perform this kind of gear change while driving downhill,
Since the engine load is small, the automatic transmission is in the highest gear (
(8th speed in FIG. 2) continues to be selected, and a sufficient engine braking effect cannot be achieved due to the gear ratio. When driving in this way, the driver sets the manual pulp to the 2nd gear engine brake running (Il) range or the 1st gear engine braking running (1) range so that the automatic transmission maintains 2nd gear or 1st gear. This required manual operation to obtain engine braking.
本発明はこの手動操作による煩られしさをなくすため、
降坂路走行時エンジンブレーキが必賛な場合、エンジン
ブレーキ用変速パターンが自動的に選択されるようにし
た自動変速機を提供しようとするものである。In order to eliminate the hassle of manual operation, the present invention
To provide an automatic transmission in which a shift pattern for engine braking is automatically selected when engine braking is essential when driving downhill.
以下、図示の実施例により不発明の詳細な説明する。Hereinafter, the invention will be described in detail with reference to illustrated embodiments.
第１図は不発明−実施の態様、で、゛図中１４ま自動変
速ｍ、ｇは変速パターン変更アクチュエータを夫々示シ
、アクチュエータ２はその減勢時自動変、速機１を第２
図の通常走行用変速パターンに沿い自動変速させ、又付
勢時は自動変速機１を第８図のエンジンブレーキ用変速
パターンに沿い自動変速させるものとする。FIG. 1 shows an embodiment of the invention. In the figure, 14 indicates an automatic gear shift m, g indicates a shift pattern changing actuator, actuator 2 automatically shifts when power is reduced,
The automatic transmission 1 is automatically shifted according to the normal running shift pattern shown in the figure, and when energized, the automatic transmission 1 is automatically shifted according to the engine brake shift pattern shown in FIG.
アクチュエータ２にはブレーキ作動スイッチ８、ブレー
キ温度スイッチ４、セレクトスイッチ５及びバッテリ６
を直列に接続して設ける。ブレーキ作動スイッチ８はブ
レーキペダルの踏込み、ブレーキ液圧の発生等にＪｉ？
５蛎してブレーキ作動時にのみ閉じる常開スイッチとし
、ブレーキ温度スイッチ４はブレーキ摩擦要素、即ちブ
レーキロータ、ブレーキドラム、ブレーキバンド、ブレ
ーキシュー等の温Ｉｆｆ又はその直近空気温度等に応動
してブレーキ温度が設定値以−ヒになる時のみ閉じる常
開スイッチとし、セレクトスイッチ５は不発明によるエ
ンジンブレーキ用変速パターン自動選択機能を所望する
時閉じておき、所望し１ｃい時開いておく手動スイッチ
とする。The actuator 2 includes a brake activation switch 8, a brake temperature switch 4, a select switch 5, and a battery 6.
are connected in series. The brake operation switch 8 is activated when the brake pedal is depressed, brake fluid pressure is generated, etc.
The brake temperature switch 4 is a normally open switch that closes only when the brake is applied, and the brake temperature switch 4 operates the brake in response to the temperature Iff of the brake friction elements, that is, the brake rotor, brake drum, brake band, brake shoe, etc. or the air temperature in the vicinity thereof. The select switch 5 is a normally open switch that closes only when the temperature reaches a set value or higher, and the select switch 5 is a manual switch that is closed when desired and opened when the automatic engine brake shift pattern selection function is desired. shall be.
かかる構成において、運転者がセレクトスイッチ５を閉
じておくと、不発明自動変速機は以下の如くにエンジン
ブレーキ用変速パターンを自動選択する。即ち、降坂路
走行中ブレーキを作動させ、このブレーキ作動を成る程
度長く継続するような場合、つまりエンジンブレーキを
必要とするような降坂路走行時、ブレーキ作動スイッチ
８が閉じると共に、その後ブレーキの継続作ＤＪによる
ブレーキ温度の上昇でブレーキ温度スイッチ４が閉じる
０この時、セレクトスイッチ５が閉じられていることか
ら、変速パターン変更アクチュエータ２はバッテリ６に
より付勢され、自動変速機１は第２図の通常走行用変速
パターンがら第８図のエンジンブレーキ用変速パターン
を切換選択し、後者のパターンに沿って自動変速を行な
うことができる０
しかして、ブレーキを作動させず、スイッチ３が開いて
いるか、又はブレーキを作動させてもこの作動を直ちに
中止するためブレーキ温度スイッチ仝が開いている場合
、つまりエンジンブレーキを必要としない走行中は、ア
クチュエータ２が減勢され続け、自動変速＠］は第２図
の通常走行用変速パターンに沿って自動変速を行なうこ
とができる。In this configuration, when the driver closes the select switch 5, the automatic transmission automatically selects the engine braking shift pattern as described below. That is, when the brakes are applied while driving downhill and this brake operation is continued for a considerable length of time, that is, when driving downhill where engine braking is required, the brake activation switch 8 is closed and the brakes are then continued. The brake temperature switch 4 closes due to the increase in brake temperature caused by DJ operation.At this time, since the select switch 5 is closed, the shift pattern change actuator 2 is energized by the battery 6, and the automatic transmission 1 is activated as shown in FIG. It is possible to switch and select the engine brake shift pattern shown in Figure 8 from the normal driving shift pattern, and automatically shift gears according to the latter pattern. , or if the brake temperature switch is open to stop this operation immediately even if the brake is applied, that is, when driving without engine braking, the actuator 2 will continue to be deenergized and the automatic transmission will not be activated. Automatic gear shifting can be performed in accordance with the normal driving gear shifting pattern shown in FIG.
なお、運転者がセレクトスイッチ５を開いておく場合、
アクチュエータ２は付勢されることがなく、従ってエン
ジンブレーキを必要とする走行中か否かに関係なく自動
変速機】は常時第２図の通常走行用変速パターンに沿っ
て自動変速を行なうことができる。In addition, if the driver leaves the select switch 5 open,
The actuator 2 is not energized, so the automatic transmission can always automatically shift according to the shift pattern for normal driving shown in Figure 2, regardless of whether or not the vehicle is driving where engine braking is required. can.
かくして本発明自動変速機は上述の如く、ブレーキを作
動させ、このブレーキ作動を、長時曲性なうような走行
中、つまりエンジンブレーキが必要な走行中、変速パタ
ーンを自動的に第２図の通常飛行用パターンから第８図
のエンジンブレーキ用パターンへ切換えるよう構成した
から、マニュアルバルブを手動で切換操作しなくても、
エンジンブレーキを効かせながらの走行を可能にして、
操作の煩られしさを解消することができる。Thus, as described above, the automatic transmission of the present invention applies the brake and automatically changes the shift pattern to the shift pattern shown in FIG. Since the configuration is configured to switch from the normal flight pattern shown in Figure 8 to the engine braking pattern shown in Figure 8, there is no need to manually switch the manual valve.
Enables driving while applying engine braking,
It is possible to eliminate the troublesome operation.
第１図は本発明自動変速機の路線図、
第２図は同自蛎変速機の通常走行用変速パターン図、
第３図は同じくそのエンジンブレーキ用変速パターン図
である。
１・・・自動変速機
２・・・変速パターン変更アクチュエータ８パ・ブレー
キ作動スイッチ
４・・・ブレーキ温度スイッチ
５・・・セレクトスイッチ
６・・・バッテリ。
特許出願人 日産自動車株式会社
第１図
第２プ
第３図
９ 吻 Ｑ 豪速（Ｋ喉）FIG. 1 is a route map of the automatic transmission of the present invention, FIG. 2 is a diagram of a shift pattern for normal running of the automatic transmission, and FIG. 3 is a diagram of a shift pattern for engine braking. 1... Automatic transmission 2... Gear shift pattern change actuator 8 Pa/Brake operation switch 4... Brake temperature switch 5... Select switch 6... Battery. Patent applicant: Nissan Motor Co., Ltd. Figure 1 Figure 2 Figure 3 9 Snout Q Gosoku (K-throat)
Claims (1)
通常走行用変速パターンに沿い変速を行なうようにした
自動変速機において、ブレ１キ作動信号及びブレーキ温
度信号によりブレーキ作動中でブレーキ温度が設定値以
上の時、前記通常走行用変速パターンと興なるエンジン
ブレーキ用変速パターンに沿い変速を行なうよう構成し
たことを特徴とする自動変速機。1. In an automatic transmission that uses a combination of a vehicle speed equivalent signal and an engine load signal to shift according to a normal driving shift pattern, a brake operation signal and a brake temperature signal indicate that the brake temperature is higher than the set value while the brake is being applied. An automatic transmission characterized in that the automatic transmission is configured to change gears according to an engine braking shift pattern that is different from the normal driving shift pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2730184A JPS60172757A (en) | 1984-02-17 | 1984-02-17 | Automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2730184A JPS60172757A (en) | 1984-02-17 | 1984-02-17 | Automatic transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60172757A true JPS60172757A (en) | 1985-09-06 |
| JPH0126423B2 JPH0126423B2 (en) | 1989-05-23 |
Family
ID=12217265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2730184A Granted JPS60172757A (en) | 1984-02-17 | 1984-02-17 | Automatic transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60172757A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01279145A (en) * | 1988-04-30 | 1989-11-09 | Daihatsu Motor Co Ltd | Shift locking device for automatic transmission |
| FR2709525A1 (en) * | 1993-09-04 | 1995-03-10 | Bosch Gmbh Robert | Safety system for motor vehicles with automatic transmission. |
| KR101198722B1 (en) | 2006-06-28 | 2012-11-12 | 현대자동차주식회사 | Method for Controlling Shift Before Stop of Automatic Transmission |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5074063A (en) * | 1973-11-07 | 1975-06-18 | ||
| JPS50109362A (en) * | 1974-02-08 | 1975-08-28 |
-
1984
- 1984-02-17 JP JP2730184A patent/JPS60172757A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5074063A (en) * | 1973-11-07 | 1975-06-18 | ||
| JPS50109362A (en) * | 1974-02-08 | 1975-08-28 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01279145A (en) * | 1988-04-30 | 1989-11-09 | Daihatsu Motor Co Ltd | Shift locking device for automatic transmission |
| FR2709525A1 (en) * | 1993-09-04 | 1995-03-10 | Bosch Gmbh Robert | Safety system for motor vehicles with automatic transmission. |
| KR101198722B1 (en) | 2006-06-28 | 2012-11-12 | 현대자동차주식회사 | Method for Controlling Shift Before Stop of Automatic Transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0126423B2 (en) | 1989-05-23 |
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