JPS5950260A - Automatic transmission for automobile - Google Patents

Abstract

PURPOSE:To prevent a range selecting mechanism from being damaged by not executing the output of the range selector control signal based on the range position signal of a transmission when the range is selected from drive to park, or from drive to reverse, or from reverse to drive. CONSTITUTION:For instance, when a switch is selected to P position, if the decision in step 25 is [vehicle speed 0 or not] based on the vehicle speed data from computation in step 11, the flag F is made to be P in step 26 and the range processing is terminated. If [vehicle speed 0], step 26 is not executed and the selection of switch P is judged to be void and is terminated. Similarly, when selection of [R D] or [D R] is made, such selection is judged to be void unless the vehicle is standing still. Therefore, if the range selection operation is unreasonable, damages to the automatic transmission are prevented.

Description

【発明の詳細な説明】 本発明は、電気的手段を用いてレンジイ１′／胃の切換
えを行う自動車用自動変速１直においで、レンジ切１！
／！機構の破損を防止り−るにうにした自動車用自動変
速装置に閏づるものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides an automatic transmission for automobiles that uses electrical means to switch between range OFF 1' and range OFF 1'.
/! It is used in automatic transmission devices for automobiles to prevent damage to the mechanism.

自動車用自動変速機は一般的に、ＩＳＩＳ口車ジ１）を
選択した場合、坂道等の島１屯時のように不意な車両の
１Ｆｌｌさ出１ノを防」１りるため、自動変）虫１幾の
出力軸を機械的に完全に固定してしまう１１り造であり
、電気的手段、即ち切換スイッチ等’Ｃ’１１易に切１
！／！操作がでさるように覆ると、操作が極め（容易と
なることにＪ、つて運１１ｊ１者が不用意に切換スイッ
チを操作し−（しまう危険性が人きく　％す、１シ１え
ｉ３丁走行レンジＤ又は後）はレンジ［くで走行中に誤
−）て几１中レンジＰへ切換ると出力軸が固定されるこ
とになつで、自動変速機の破損に通じることと４【る。Automatic transmissions for automobiles generally do not automatically shift when the ISIS transmission is selected to prevent the vehicle from unexpectedly moving out of the way, such as when driving down a slope. ) It is a structure that completely fixes the output shaft of the insect 1 mechanically, and it can be easily turned off by electrical means, such as a changeover switch.
! /! If you cover it so that it is easy to operate, it will be easier to operate (J, and there is a risk that someone will accidentally operate the changeover switch.) If the driving range (D or rear) is switched to range P (by mistake while driving at home), the output shaft will become fixed and this may lead to damage to the automatic transmission. .

又、走行レンジＤで走行中に１’Ｕ　ＩＮ　ｌノンジＲ
へ切換えた場合、あるいは後退レンジ１り（・走行中に
走（ｊレンジＤへ切換えた場合は出力軸が急激に逆回転
することとなり、同様に自動変速機の破損につながる。Also, while driving in driving range D, 1'U IN l non-ji R
If the vehicle is switched to reverse range 1 (J range D while driving), the output shaft will suddenly rotate in the opposite direction, which may also cause damage to the automatic transmission.

本発明は、」−記の点に鑑みなされたものであり、レン
ジ切１％　ｔ！！　ＩＭの破損を防止Ｊることを［１的
とづる。イのため、本発明は複数のレンジ位：りを択一
的に選択指示づるレンジ切換スーｒツヂと、自動Ｘ１１
の走行速度に比例した周波数の車速パルス信号を発生づ
る車速レンジど、コーンジンのΩ荷を検出し対応号る上
レジン０伺信舅を光イ１する］−ンジン負荷センリ−と
、上記レンジ切換スイッチからのレンジ位置信糾、上記
車速センサからの車速パルス信号及び上記エンジン負荷
レンジからの」−ンジン負荷信号を受ｔルンジ切換１幾
椙と変速機構とを含む自動変速機を制６１１　′？Ｉる
制御回に’ｌｌとを備えた自Ｗｈ巾用自動変速装置にお
いて、 −」二記制御回路を、 上記車速バルメ信弓ににり自動車が停止状態にない旨判
定し、かつ、」ニ記しンジ位冒信弓により、レンジ位置
が、駐車レンジ位置にｌ、’Ｊ　操選択され、又は走行
レンジ位置から後退レンジ位置に切１９！選択され若し
くは後退レンジ位置から走行レンジ位置に切換選択され
た旨判定覆ると、当該レンジ切換操作をいずれら無効と
判断し、選択されたレンジ位置に対応Ｊるレンジ切換制
御イＲ号の出力処理を実行しへいよう構成ｕしめた ことを特徴と覆る。The present invention has been made in view of the points stated in "-", and the microwave oven is turned off by 1% t! ! Preventing IM damage is defined as [1]. Therefore, the present invention provides a range switching mode that selectively selects and instructs one of a plurality of range positions, and an automatic X11
The vehicle speed range generates a vehicle speed pulse signal with a frequency proportional to the running speed of the engine, detects the Ω load of the cone engine, and outputs a corresponding signal. The automatic transmission including the range position signal from the switch, the vehicle speed pulse signal from the vehicle speed sensor, and the engine load signal from the engine load range is controlled 611'? In the automatic transmission for self-wheel width equipped with 'll' in the control circuit, the control circuit determines that the vehicle is not in a stopped state in response to the above-mentioned vehicle speed indication; The range position is set to the parking range position, or is switched from the driving range position to the reverse range position with the blasphemy bow. If it is determined that the range has been selected or the reverse range has been selected, the range switching operation will be determined to be invalid, and the range switching control corresponding to the selected range position will be output. It is characterized by the fact that it has been configured to carry out the following.

以下、図面を参照しつつ本発明を説明づる。The present invention will be explained below with reference to the drawings.

第１図は木光明の一実施例を表わづブ［１ツク図を示１
゜マイクロコンピコ゛−タを含む制御回路′１の入力側
にはエンジン負荷ジン１）の−例であるスロワ１〜ルセ
ンサ２と車速センサ３、及びレンジ切換スイッチ４がそ
れぞれ接続され、スロワ１−ルレン１す２ににつてエン
ジンスロワ１−ルの開度θを、また中速レンジ３によっ
て中両の走ｂｉ宋１ｑがぞれぞれ検出できるようになさ
れると共に、レンジ切換スイッチ４は例えば島１車レン
ジｌ〕、後退レンジＲ１−二Ｊ、　−１−ラルレンジＮ
、及び走行レンジ１〕が手動操作により選択され、該選
択されたレンジ信号／）Ｓ制御回路１へ入ノｊできるよ
うになされ（いる。Figure 1 shows an example of an embodiment of the tree.
゜The input side of the control circuit '1 including the microcomputer is connected to the thrower 1 to 2, which are examples of the engine load generator 1), the vehicle speed sensor 3, and the range selector switch 4, respectively. The opening degree θ of the engine throttle 1-2 can be detected in the range 1 and 2, and the opening degree θ of the engine throttle 1-2 can be detected in the middle speed range 3, and the opening degree θ of the engine throttle 1-1 can be detected in the middle speed range 3. Island 1 car range L], reverse range R1-2J, -1-ral range N
, and travel range 1] are selected by manual operation, and the selected range signal is allowed to enter the S control circuit 1.

ここでＪｌ記Ｉ　速ｔンサ３は例えば１−ランスミッシ
ョンの出力軸つ回転数を検出覆る。またレンジ切換スイ
ッチ４は運転者にＪ、す、操作可能な位置、例えばイン
ス１−ルメントパネルの適宜箇所に設置される。Here, the speed sensor 3 detects, for example, the rotational speed of the output shaft of the first transmission. Further, the range selector switch 4 is installed at a position that can be operated by the driver, for example, at an appropriate location on the instrument panel.

また、制せ１１回路１の出力側には、自動変速機５が接
続され制御１１回路１の制御信号によってレンジ切換機
構６を、ｊ、た制御１１回路１内に予め記憶された変速
制御パターンに３．町づいて変速Ｉ幾構７をイれぞれ制
御ぐぎるようになされている。Further, an automatic transmission 5 is connected to the output side of the control circuit 1, and the range switching mechanism 6 is controlled by a control signal from the control circuit 1. 3. Each time the driver approaches the vehicle, the gearbox I and the gearbox 7 are individually controlled.

次に、第２図は前記制御回路１内に予め設定された制御
ノログラ”ｌ＼のメインルーヂンを示°リノ１１−ヂ１
７−１〜で、先ず、ステップ１ｏのイニシャライズステ
ップにＣマイク１コ」ンビュータ内のフラグであっＣレ
ンジ１つ置を表わすものをＭ中しンジＰに設定した後、
ステップ１１で車速ジン→）３の信号に基づいて車）１
１の演樟を行い、ステップ１２でスロワ１−ルレンリ２
の仁シシに基づいてスロツ］〜ル開度θを取り込み、ス
テップ１３（゛レンジ切換スイッチ４の信号に基づいて
レンジ処理部らレンジ位置の決定処理を行い、ステップ
１４　’ｌ”車速データどスロットル開度データと変速
制御パターンとに基づいてシフ１−処理、叩４）ジット
位岡の決定処理を行った後に、ステップ１５に（上記レ
ンジ処理により決定されたレンジ位置、及び−１記シフ
１−処理により決定されたシフト位買にそれぞれヌ・ｊ
応Ｊる制御１１回路を、レンジ切換Ｉ；■椙６ど変速機
構７に出）ｊづる。次いで再びステップ１１へ復９１１
　Ｌｌでステップ１１−１５からなる閉ループを繰り返
し実行づるものである。Next, FIG. 2 shows the main routine of the control program "l\" set in advance in the control circuit 1.
In steps 7-1~, first, in the initialization step of step 1o, after setting the flag in the C microphone 1 computer converter, which indicates the position of one C range, to the M middle range P,
In step 11, the vehicle speed is calculated based on the signal of →)3.
Perform step 1, and in step 12, thrower 1 - Lurenri 2
In step 13, the range processing section determines the range position based on the signal from the range selector switch 4, and in step 14, the vehicle speed data and throttle After performing shift 1 processing and hitting 4) shift position determination processing based on the opening degree data and shift control pattern, in step 15 (the range position determined by the above range processing and shift 1 −J for each shift position determined by processing
The corresponding control circuit 11 is output to the transmission mechanism 7 when the range is changed. Then return to step 11 911
In Ll, a closed loop consisting of steps 11-15 is repeatedly executed.

次に、ｆｆｉ　３図は前記メインルーチン内のステップ
１３によるレンジ処理の訂柵を示したノロ−１１・−１
〜で、ステップ２０．２１．２２．２３でてれぞれレン
ジ切換スイッチ４がＮ、１）、Ｄ、［くのいずれを選択
しｌｃかを判定し、スイッチ４がＮに選択されるとステ
ップ２４でフラグ「をＮとしでレンジ処理を終了１）、
スイッチ４が１）に選択されると、ステップ２５でステ
ップ１１により演０公れだ中速データに１１Ｌづいて「
車速−０」即ち車両１７１１状態と判定されると、スフ
ツブ２６でフラグ１−を１）どしてレンジ処理を終了し
、また１車速゛二０１ＣイＴいＪＡＡ白（、Ｌステップ
２６に、ＪこりフラグＦ−を１〕にセラ１〜りる処理を
実（１１！す”、ｔｉｌ＋　４）スイッチ１）の選択を
無効と判別しく終了し、スイッチが［）に選択されると
スフツブ２７でスイッｆ−が１）に選択される直前のレ
ンジがＲであっ１．：か古かを判別した後、これが［く
でない場合ｊよスｌツ゛ゾ２９へ進み、これが１又であ
っ１．：場合（よス）゛ツノ２（）ぐ「１１１速°−８
０」を判別し、［車速’−：　ＯＪであれμ′スーｊツ
ブ２９へ進／υぐフラグ］二を１〕どし、１中速”−０
，１でイ≧りれはスーｊツゾ２９を丈ｉｊｔ！ヂ、即ち
、Ｄの選択ＧＪ　７１１．（効ど判別しく終了し、更に
スイッチ４が［くに選１）りされるどスフツブ３０ぐス
イッチ４が１でに選択される直前のレンジがＤであった
か占かを判別した後、◆これが１）℃・４１い場合はス
フツブ３３２へ進み、これが１つであった場合はスｊ−
ツブ３１で［車速’＝：　ＯＪを判別し、１−車速’＝
＝−；　０１ぐあればスフツブ３３２へ進ん（−フラグ
１を［シとし、１中速’−、ＯＪでな（〕れぽススフツ
ブ２を実行ｕｆ１即Ｉ′）スイッチＲの］ハ択は無効と
判別してレンジ処理を・終Ｊ′りるＪ、うに／、ｆされ
ている。Next, Figure 3 shows the correction of range processing in step 13 in the main routine.
In steps 20, 21, 22, and 23, it is determined whether the range changeover switch 4 is N, 1), D, or LC, and when the switch 4 is selected as N. In step 24, set the flag “N” and end the range processing 1).
When the switch 4 is selected to 1), in step 25, step 11 performs 11L on the medium speed data.
When it is determined that the vehicle speed is "0", that is, the vehicle is in the 1711 state, the step 26 sets the flag 1- to 1 to end the range processing, and also sets the vehicle speed to 1711C (JAA white) at the L step 26. Execute the processing to return the cell 1 to 1 with the J stiffness flag F- set to 1 (11!su", til+4). The selection of switch 1) is determined to be invalid, and the switch 1) is selected as [). After determining whether the range immediately before the switch f- is selected to 1) is R or 1.: or old, if this is not old, proceed to 29, and this is 1 or 1. .: case(yosu)゛tsuno2()g'111 speed °-8
0", [vehicle speed'-: OJ or μ' proceed to 29/υ flag] 2 to 1], 1 medium speed"-0
, 1 is ≧ Rere is Suj Tsuzo 29 length ijt! Di, that is, selection of D GJ 711. (After the effect has been successfully determined and the switch 4 is selected as [Kuni Selection 1], it is quickly determined whether the range immediately before the switch 4 is selected in 1 is D or not. ◆This is 1) If there is ℃・41, proceed to step 332, and if there is one, go to step 332.
At knob 31, [vehicle speed'=: Determine OJ, 1-vehicle speed'=
=-; If it is 01, proceed to step 332 (-set flag 1 to [Set 1 medium speed'-, do not use OJ (] Execute report step 2 uf1 immediately I') switch R] selection is invalid It is determined that the range processing is completed and the range processing is completed.

従つ（、制御回路１（、ルンジ切（灸スーｒツブ４　（
Ｄ選択操作で、スイッチ１）どされ乙６１中）魁−、０
、，１、即Ｊ）車両が停止していない限りスイッｆ゛１
）操作を６効どＵす゛、Ｊ、ｌこｌ’　Ｒ−Ｄ　Ｊある
いは［１）叫く１に切１条操作されに時車両が停止して
ぃイよい限りこれらの操作は６効とされない、。Follow (, Control circuit 1 (, Runge cut (Moxibustion switch 4 (
D selection operation, switch 1) Dosare Otsu 61) Kai -, 0
,,1, Immediately J) Switch f゛1 unless the vehicle is stopped.
) These operations have 6 effects as long as the vehicle stops when the vehicle is operated. Not done.

以し、のＪ、うに本発明１よ、複数のレンジ位置を択一
的にｊハ択指示覆るレンジ切換スイッチと、白ηリノ申
の走行速度に比例しＩζ周波数の車速パルス信Ｖ〕を発
乙１づる中速レンジと、］−レンジの（１前を検出し対
応づる」−ンジンｏｉｌＩ？ｉ信号を発生ＪるＬンジン
負荷リン１）ど、」ニ記しンジ切換スイッヂからのレン
ジ位置信号、−１−記車速Ｕンリがらの車速バルスイ１
゛；号及び」−記−Ｉンジン負傭しンリ゛がらの一１ン
ジン負（１’ｌ　ｆ＝？号を受（Ｊレンジ切１９！機構
ど◇：速機４１°４どべ・含む自動変３１５機を制御す
る制９］１回路どを備えた自すノ車用自動変速装置にお
いて、 」〕記制御回路を、 上記中速パルス信号により自動車が停止状態に４ｒい旨
判定し、かつ、上記レンジ位置（１；号ににす、レンジ
＜ｔｔｒｉが、駐屯レンジ位置に切換選択され、又は走
行レンジ位置から後３［４レンジ４；を首に切換選択さ
れ名しり【、↓１９　ｉｔ！、レンジ位１６から走行レ
ンジ位「１に切換）式択された旨判定づると、当該レン
ジ切換操作をいずれも無効と判断し、選択されたレンジ
ハｌ直に対応３）るレンジ切換ｉ１ｉ＋制御伯号の出力
処理を実行しないよう構成せしめた ことを１、°画数とりる。Therefore, according to the present invention 1, there is provided a range changeover switch that selectively selects a plurality of range positions, and a vehicle speed pulse signal V] with a frequency Iζ proportional to the running speed of the vehicle. Detects the previous range and generates a corresponding signal. Range position from the range changeover switch. Signal, -1-Vehicle speed valve switch 1 with recorded vehicle speed U
゛; No. and ” - No. 11 engine negative (1'l f = ? No. is received (J range off 19! Mechanism ◇: Speed gear 41° 4 door / included) In an automatic transmission system for a vehicle equipped with a control circuit for controlling an automatic transmission 315, the control circuit determines that the vehicle is in a stopped state based on the medium-speed pulse signal, and And, when the above range position (1; is selected, range < ttri is selected to switch to the parking range position, or from the driving range position to the rear range 3 [4; range 4; is selected to switch to the neck [,↓19 If it is determined that the range change from range 16 to driving range ``1'' has been selected, all range change operations are judged to be invalid, and the range change corresponding to the selected range is directly performed.3) Range change i1i+ 1. The number of strokes is configured so that the output processing of the control number is not executed.

このため、本発明にＪ、れば、レンジ切換操作が非所で
！１に行われてし、非所望なレンジ切換を無効どづるた
め、自動変速機を破損することがないと言う効果がある
。Therefore, if the present invention is used, the range switching operation can be done in the wrong place! 1 and invalidates undesired range switching, which has the effect of preventing damage to the automatic transmission.

【図面の簡単な説明】[Brief explanation of drawings]

図面は本発明の実施例を示′すｂので、第１図はブロッ
ク図、第２図、第３図番よいずれム制御回路の制ｔｉｌ
ｌブＬ１グラムを示リフ１１−チｒ−−ｔ−である。 １・・・制御回路 ２・・・ス１−１ツｌ−ルレンリ（１ンジンメ１荷レン
リ）３・・・車速レンサ ４・・・レンジ切換スイッチ− ５・・・自動′ｉ９．速１本 ６・・・レンジ１ノ月！ｉ１１機構 ７・・・変速機構 代理人　弁理士　足でｌ　勉Since the drawings show embodiments of the present invention, FIG. 1 is a block diagram, and the numbers in FIGS.
The 11-chi r--t- shows the l-b L1-g. 1...Control circuit 2...S1-1 load level (1 engine, 1 load level) 3...Vehicle speed sensor 4...Range selection switch-5...Auto'i9. 1 speed 6... 1 month in the microwave! i11 Mechanism 7... Transmission mechanism agent Patent attorney Tsutomu Tsutomu

Claims (1)

【特許請求の範囲】 複数のレンジ（（、置を択一的に選択指示覆るレンジ切
換スイッチと、自動車の走行３３Ｉ度に比例した周波数
の車速パルス信号を発生Ｊる車速レン′す゛と、エンジ
ンの（１何を検出し対応するエンジン負荷信号を発生づ
るエンジン負荷レンリーと、上記レンジ切換スイッチ１
．ｓ　ｔらのレンジ位置信号、上記中速レンジからの中
）虫パルス信号及び上記エンジン負荷センリ゛７）１１
らのエンジン負荷信号を受ｔルンジ切換機構と変速機構
とを含む自動変速）幾を制りＩ＋　する制御回路とを備
えた自動車用自動変速装置において、上記制御回路を、 上記車速パルス信号にＪ、り自動車が停止状態にない旨
判定し、かつ、上記レンジ１１”！置（８りにより、レ
ンジ位置が、Ａ１車レンジ位置にリノ模選択され、又は
走１ｊレンジ（？／置から後退レンジ（）“１間に切換
選択され若しくは後退レンジ位置／Ｊｌ　ｌら走行レン
ジ位置に切換選択された旨判定Ｊると、当該レンジリＪ
換操作をい−ずれも無効と判断し、選択さｔシＩこレン
ジ位置にり４応するレンジ切換制…１信弓の出力処Ｉ甲
を実ｆｊシないＪ、う４１４成ｕしめたことを特徴とり
る自動車用自動変速装置。[Claims] A range changeover switch that selectively selects and instructs a plurality of ranges, a vehicle speed range that generates a vehicle speed pulse signal with a frequency proportional to 33 degrees of travel of the vehicle, and an engine. (1) An engine load sensor that detects what is detected and generates a corresponding engine load signal, and the range selector switch (1).
．． s range position signal, medium speed pulse signal from the medium speed range, and engine load sensor 7) 11
In an automatic transmission device for an automobile, the control circuit is configured to receive an engine load signal from the vehicle speed pulse signal and to control the speed of the automatic transmission including an automatic speed change mechanism and a speed change mechanism. , it is determined that the vehicle is not in a stopped state, and the range position is selected as the A1 vehicle range position by the above range 11"! position (8), or the range position is selected from the A1 vehicle range position (?/position to the reverse range position). () "If it is determined that the switch has been selected between 1 or the reverse range position/Jl l and the travel range position has been selected, the corresponding range position
All switching operations were judged to be invalid, and the corresponding range switching system was set to the selected range position. An automatic transmission device for automobiles that is characterized by: