JPS5940052A - Automatic speed changing method - Google Patents

Automatic speed changing method

Info

Publication number
JPS5940052A
JPS5940052A JP57150331A JP15033182A JPS5940052A JP S5940052 A JPS5940052 A JP S5940052A JP 57150331 A JP57150331 A JP 57150331A JP 15033182 A JP15033182 A JP 15033182A JP S5940052 A JPS5940052 A JP S5940052A
Authority
JP
Japan
Prior art keywords
transmission
signal
gear
gear position
acceleration
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.)
Pending
Application number
JP57150331A
Other languages
Japanese (ja)
Inventor
Shingo Kobayashi
小林 眞吾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Komatsu Ltd
Original Assignee
Komatsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP57150331A priority Critical patent/JPS5940052A/en
Publication of JPS5940052A publication Critical patent/JPS5940052A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2552/00Input parameters relating to infrastructure
    • B60W2552/15Road slope

Abstract

PURPOSE:To operate a vehicle smoothly, by employing such an arrangement that the gear position of a transmission is shifted skipping over one stage of the gear position in case that the vehicle speed is changed drastically at the time of changing the vehicle speed. CONSTITUTION:It is judged at a step 23 whether the vehicle speed is in a ''shift- down'' region or not. In case that the result of judgement at the step 23 is YES, it is judged further at a step 24 whether or not the logical level of a signal Sc is ''high (H)'' which indicates that the acceleration speed of a vehicle is higher than a prescribed value. Here, in case that the result of judgement at the step 24 is YES, a signal for shifting a transmission from the gear position at the time to a gear position two stages lower than the same is produced as a gear shifting signal. Resultantly, the transmission is shifted down skipping over one stage of the gear position. Similarly, in case that the result of judgement at the step 23 is NO, the transmission is shifted up also skipping over one stage of the gear position if the acceleration speed of the vehicle is higher than the prescribed value.

Description

【発明の詳細な説明】 本発明は、〕11輛の自1i11変速方法+<関する。[Detailed description of the invention] The present invention relates to a transmission method for 11 vehicles.

車111(イの自動変速装置i+、は、従米各神のもの
が実用されているが、かかる従来装置においては変速が
;の変速段を1段づつ変化させるようにしているので以
下のような不都合を生じていた。
The automatic transmission device i+ of the car 111 (A) has been put into practical use in the United States and the United States, but in such conventional devices, the gears are changed one step at a time, so the following method is used. It was causing inconvenience.

すなわち、車輛が平地から急な上り坂にさしかかった場
合、該1反を・登るのに適切な変、叱段まで変速機を数
段シフトダウンして減速させる必借り一力)るが、この
減速時((変速させる段数だけシフトダウンをくり返す
1.二めに車輛の円滑な走行が妨げられる6士だ、加速
時においても1段づつシフトアップするので加速性が悪
い。
In other words, when a vehicle approaches a steep uphill slope from flat ground, it is necessary to downshift the transmission several gears to reduce the speed until the gear is appropriate for climbing the slope. When decelerating ((shifting down as many gears as the number of gears to be changed).Secondly, the smooth running of the vehicle is hindered, and even when accelerating, it shifts up one gear at a time, resulting in poor acceleration.

本発明の目的は、上述した不都合な°解消し得る自動変
速方法を情供することにある。
An object of the present invention is to provide an automatic transmission method that can eliminate the above-mentioned disadvantages.

本発明は、上記目的を達成1−るために変速時PCおけ
る車体の加速度が所定値より大きい場合は変速機の変速
段を複数段変化させるよ5VC,L、ている。
In order to achieve the above-mentioned object, the present invention changes the gear stage of the transmission by a plurality of stages when the acceleration of the vehicle body at the PC during gear shifting is larger than a predetermined value.

以下、添附図面を参照しながら本発明をWl’細に説明
する。
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

第1図は、本発明に係る方法を適用した自動変速装置の
一実施例を示す。同図において、エンジン1の出力はト
ルクコンバータ2および変速機3を介してル1〕輸4に
伝達される。また該エンジン1のスロットルンバー5は
、リンク6を介して連結されたアクセルペダル7によっ
てその開度が変化され、それに伴って上山エンジン1の
回転数が変化する。
FIG. 1 shows an embodiment of an automatic transmission device to which the method according to the present invention is applied. In the figure, the output of an engine 1 is transmitted to a motor 4 via a torque converter 2 and a transmission 3. Further, the opening degree of the throttle lever 5 of the engine 1 is changed by an accelerator pedal 7 connected via a link 6, and the rotational speed of the Uyama engine 1 changes accordingly.

イ13号発生器8はヒf1′2アクセルペダル7に連動
し、第2図に示したようにアクセルペダル7の凹角が0
〜θ1の範囲0.・〜(θ、十θ、)の範囲および(θ
l−1−) θ2)〜(θ、−トθ2+03)の範囲にそれぞれ対尾
、してスロットル位置信号日1.S、およびS、化発牛
し、これらの信号S1〜S3を後述するCPU(中央部
Jjl装置)100人出力回路11に加える。
A No. 13 generator 8 is linked to the H f1'2 accelerator pedal 7, and as shown in FIG.
~θ1 range 0.・The range of ~(θ, 10θ,) and (θ
l-1-) θ2) to (θ, -t θ2+03), respectively, and the throttle position signal is set as 1. S, and S are output, and these signals S1 to S3 are applied to a CPU (central JJI device) 100 output circuit 11, which will be described later.

上記トルクコンバータ2の出力→111に配置と−させ
た速1斐センザ12は、該軸の回転〕十間を検出して該
速度に対応した同波数の信号Sfを゛発生ずる。
The speed sensor 12 placed at the output 111 of the torque converter 2 detects the rotation of the shaft and generates a signal Sf of the same wave number corresponding to the speed.

」二へ己自梠Ofは、同波1文−電圧り((鵠4rr1
3によってその同波数に対応した111.圧の速度信号
Sヶに斐換されたのち徴発回路14に入力され、加逝y
度信号に変換される。そして、この加速度信号は絶対値
回路15を介して比較器1Gに加えらハる。
” 2 to self-control Of is the same wave 1 sentence-voltage ((鵠4rr1
3 corresponds to the same wave number as 111. After being converted into a pressure speed signal S, it is input to the collection circuit 14, and the pressure is increased.
converted into a degree signal. This acceleration signal is then applied to the comparator 1G via the absolute value circuit 15.

該比較器16は、上記絶対値回路15 J4つ与えられ
る信号−づ−なわちυ11速度信号の人とさ鳴で加速度
の基準値を設定する基準値設定器17の設定値と比較し
、加速度が設定値より大きくなった際に上記入出力回路
11に加える信号Scの論理レベルを「H」にする。
The comparator 16 compares the signal supplied with the four absolute value circuits 15J, that is, the speed signal υ11, with the setting value of the reference value setting device 17 which sets the reference value of acceleration. When the value becomes larger than the set value, the logic level of the signal Sc applied to the input/output circuit 11 is set to "H".

第3図は il’l’ 1図に示した装置における変速
態様例を示す。この例では、スロットル位置信号がB、
lsよびS8であり、かつトルクコンバータ2の出力軸
回転速度が0〜155o (rpm)である領域および
スロットル位置信号が8.でありかつトルクコンバーク
2の出力軸回転数が0〜x3oo(rpm)である領域
ヲ、−に記変速機3をシフトダウン領域として設定し、
また、スロットル位置信号が81およびS、でありかつ
トルクコンバータ2の出力軸回転速度?J12450 
(rpm)以上である領域t(マよびスロットル位置信
号がS、でありかつトルクコンバータ2の出力用1回転
速度が2100 (rpm)以−ヒである領域を、上記
変速機3をシフトアップさせる領域として設定している
。なお、その他の領域は変速機3の変速段を保持させる
保持領域として設定されている。
FIG. 3 shows an example of a speed change mode in the apparatus shown in FIG. In this example, the throttle position signal is B,
ls and S8, and the range where the output shaft rotational speed of the torque converter 2 is 0 to 155o (rpm) and the throttle position signal is 8. and the output shaft rotation speed of the torque converter 2 is from 0 to x3oo (rpm).The transmission 3 is set as a downshift region.
Also, is the throttle position signal 81 and S, and the output shaft rotational speed of torque converter 2? J12450
(rpm) or more, the transmission 3 is shifted up in a region t (ma and throttle position signals are S, and the output rotational speed of the torque converter 2 is 2100 (rpm) or more). Note that the other areas are set as holding areas in which the gear position of the transmission 3 is held.

かかる領域指定情報は、1(OIA(1)−ド・オンリ
・、メモリ)18に記tはされて、おり、上記0PUI
 Oは該情報に基づいて変速機3の変速点乞判断し7て
(・る。
Such area specification information is written in 1 (OIA(1)-de-only, memory) 18, and is included in the above 0PUI.
O determines the shift point of the transmission 3 based on the information.

0PUIQは、第4図に示したルーチンLUに従って変
速制御を実行する。1−なわも、まず上記入出力回路1
1を介してスロットル位置信号、ルー19器16の出力
信号Scおよび信4Sfに基づきドルクコ/バータ2の
出力軸回転でj+ 15−を入力する(入力20)。こ
の人力20では、1り1jえば上記イtj−号Sfの発
生間隔すなわち周ル1を計時してそのn1時(11’l
の逆数を算出し、その結果を′上記出力1踊回転式1度
として入力している。
0PUIQ executes speed change control according to the routine LU shown in FIG. 1-First of all, the above input/output circuit 1
j+15- is input through the output shaft rotation of the drukco/verter 2 based on the throttle position signal, the output signal Sc of the loop 19 unit 16, and the signal 4Sf through the input terminal 1 (input 20). With this human power 20, if it is 1j, the generation interval of the above-mentioned Itj- No. Sf, that is, the cycle 1, is measured and the n1 hour (11'l
The reciprocal of is calculated and the result is inputted as the above output 1 dance rotation formula 1 degree.

しかして、上記crtr1 oは、入力したスロットル
位置信号およびトルクコンバークの出力軸回転速度の関
係が上d[1シフトダウン狽戦、シフトアップ領域およ
び保持領域のいづJしに該当するか’rlJ >iし、
それぞれの領域に対応して変狭(SU、81))に(0
,1)、(1,O)および(0、0)フピセノトする(
処理21)。
Therefore, in crtr1 o, the relationship between the input throttle position signal and the output shaft rotational speed of the torque converter corresponds to the upper d [1 shift down, shift up region, and holding region.'rlJ >i,
Corresponding to each area, change narrow (SU, 81)) to (0
,1), (1,O) and (0,0) (
Processing 21).

ついで、上記変数SU、SDの内容からシフトダウン領
域であるか否かを判別しく判断23)、該判断23の結
果がYRlSの場合、判断24で信号Scの論理レベル
が車体の加速度がhi冗(lン越えているごどゲあられ
ず「1(」であるか古かを一11j断し、該判断240
粕呆がYf!LfEの場合は波速イ♂号υSとし′C変
運(、”t 3の入連段馨現在の位I?、(ρ・ら2段
−トの変速段に切り換える(if号をセットし、該信号
DSを入出力回路11/!−弁し゛〔変速機3の変速用
ソレノイドパルプ9に出力−づ−る(出力25)。こI
tによつ−(、変速機3は1設飛び越し゛〔シフトダウ
ンする。
Next, it is determined from the contents of the variables SU and SD whether or not it is in the downshift region (23). If the result of the determination 23 is YRlS, the logical level of the signal Sc is determined to indicate that the acceleration of the vehicle body is high redundant. (If the number exceeds 1, it will be determined whether it is ``1 ('' or old), and the judgment 240
The lees are Yf! In the case of LfE, set the wave speed I♂♂υS and change the current position I?, (ρ・etc. 2nd gear) (set the if number, The signal DS is outputted to the input/output circuit 11/!-valve (output 25) to the shift solenoid pulp 9 of the transmission 3.
At t, the transmission 3 skips one gear and shifts down.

また、上14i2tI11す[24の結果/1;Noの
場合、上記信号DSとして褒速機3の変速段を1段Fに
切り換える侶号乞出力する(出力26)。これによって
、上記変速・機3は1段シフトダウン−する。
In addition, the result of 14i2tI11[24/1; in the case of No, a signal for switching the gear stage of the reward gear 3 to 1st stage F is outputted as the signal DS (output 26). As a result, the transmission/machine 3 shifts down by one gear.

上記判断23の結果がNoの場合、変数SU。If the result of the above judgment 23 is No, the variable SU.

811の1)り芥からシフトアップ領域であるか否かを
判断しく判断27)、該判断27の結果がYEC8の場
合は、上記判断24と同じ判断28を実行する。
If the result of the judgment 27 is YEC8, the same judgment 28 as the above judgment 24 is executed.

そして、該判断28の結果がYFiSの場合上記変速信
号DSとして変速機3の変速段を現在の位置から2段上
の変速段に切り侠える信号をセットし、該信号DBを上
記入出力回路11=g介してソレノイドパルプ9に出力
する(出力29)。これにより、上記変速機3は1段7
1をび越してシフトアップする。
If the result of the judgment 28 is YFiS, a signal is set as the shift signal DS that allows the gear shift of the transmission 3 to be shifted to a shift gear two gears higher than the current position, and the signal DB is sent to the input/output circuit. 11=Output to solenoid pulp 9 via g (output 29). As a result, the transmission 3 is set to 1st stage 7.
1 and shift up.

また、上記判断28の結果がNOの場合、上記信号DB
として変速機3の変速段を1段上に切り換える信号をセ
ットし、該信号D8を上記入出力回路11を介してソレ
ノイドバルブ9に出力する(出力30)。これにより、
上記変速機3は1段シフトアップする。
Further, if the result of the above judgment 28 is NO, the above signal DB
A signal is set to shift the gear stage of the transmission 3 to one higher stage, and the signal D8 is outputted to the solenoid valve 9 via the input/output circuit 11 (output 30). This results in
The transmission 3 shifts up one gear.

なお、上記判断27の結果がN Oである場合は、保持
領域にあることを示唆しているので、変速信号DSを出
力しない。
It should be noted that if the result of the above judgment 27 is NO, this indicates that the shift signal DS is in the holding region, so the shift signal DS is not output.

」二記実施例では、車体の加速度をトルクコンバータの
出力軸回転速度の変化から得ているが、これに限らず、
例えば変速機の出力軸回転速度の変化から加速度を得る
こともできる。また、変速時に車体の加速度が所定値を
越えた場合は1段飛び越して変速するようにしているが
、加速度の比較値を2つ設定し、加速度が第1の比較値
と第2の比較値との間の大ぎさである場合には1段飛び
越し?変速させ、加速度が第2の比較値より大きくなっ
た際には2段飛び越しさせろという変速態様もとり得る
In the second embodiment, the acceleration of the vehicle body is obtained from the change in the rotational speed of the output shaft of the torque converter, but the invention is not limited to this.
For example, acceleration can be obtained from a change in the rotational speed of the output shaft of a transmission. In addition, if the acceleration of the vehicle body exceeds a predetermined value during gear shifting, the gear is shifted by skipping one gear, but two acceleration comparison values are set, and the acceleration is the first comparison value and the second comparison value. If the magnitude is between, do you skip one step? It is also possible to adopt a gear change mode in which the gear is shifted and when the acceleration becomes larger than the second comparison value, the gear is skipped.

なお、上述した実施例においてはアクセルペダルの踏角
とトルクコンバータの出力@11回転速度とに基づいて
変速機の変速段を変化させている〆バ、上記アクセルペ
ダルの踏角に代えてエンジンの出力軸回転数を直接検出
した結果を用いることもできる。
In the above-described embodiment, the gear stage of the transmission is changed based on the depression angle of the accelerator pedal and the output @11 rotational speed of the torque converter. It is also possible to use the result of directly detecting the output shaft rotation speed.

一ヒア](シrこよ5に、本発明は、変速時に車速が急
激に変化した際においては変速機を複数段変化させるよ
うにしているので、前述した登板時および加速時におけ
る従来装置の不都合を解消できるという利点がある。
[Here] (Shiro 5) In the present invention, when the vehicle speed suddenly changes during gear shifting, the transmission is changed in multiple stages, so the above-mentioned disadvantages of the conventional device when climbing and accelerating. It has the advantage of being able to eliminate

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

第1図は、本発明に係る自動変速方法を適用した装置の
一実施例を示すブロック図、第2図は、アクセルペダル
の踏角を示1−側面図、第3図は、変速パターンを例示
するグラフ、第4図は、本発明に係る自動変速方法の−
・実施例を示1−フローチャートである。 l・・・エンジン、2・・・トルクコンバータ、3・・
・変速機、7・・・アクセルペダル、8・・・信号発生
器、10・・・CPU、13・・・同波数−電圧変換器
、14・・・微分回路、16・・・比較器。
Fig. 1 is a block diagram showing an embodiment of a device to which the automatic transmission method according to the present invention is applied, Fig. 2 is a side view showing the depression angle of the accelerator pedal, and Fig. 3 is a side view showing the accelerator pedal depression angle. The illustrated graph, FIG. 4, shows -
- Showing an example 1 - Flowchart. l...engine, 2...torque converter, 3...
- Transmission, 7... Accelerator pedal, 8... Signal generator, 10... CPU, 13... Same wave number-voltage converter, 14... Differentiating circuit, 16... Comparator.

Claims (2)

【特許請求の範囲】[Claims] (1)トルクコンバータ出力[111の回転速度とエン
ジンの回転速度をあられす物理晴とに基づいて変速機の
変速段を順次選択1−る自動変速方法(てオdいて、車
輛の加速度を検出する手段を設け、変速時の車輌の加速
度が所定値を越えたさいに前記変速1表の変速段を複数
段変化させるよってしたことを特徴とする自動変速方法
(1) An automatic gear shifting method in which the gears of the transmission are sequentially selected based on the rotational speed of the torque converter output [111] and the physical condition of the engine rotational speed. 1. An automatic gear shifting method, characterized in that the method comprises: providing a means for changing gears, and changing the gears in the gear shift table 1 by a plurality of gears when the acceleration of the vehicle during gear shifting exceeds a predetermined value.
(2)  iIJ記トルクコンバークの出力軸の回転速
度ケ検出し、その回転速度を微分することによって前記
加速度を得るようにしたl持M’F請求の範囲第(+、
)項記1iρの自動変速方法。
(2) The rotational speed of the output shaft of the torque converter described in iIJ is detected and the acceleration is obtained by differentiating the rotational speed.
) Automatic gear shifting method of item 1iρ.
JP57150331A 1982-08-30 1982-08-30 Automatic speed changing method Pending JPS5940052A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57150331A JPS5940052A (en) 1982-08-30 1982-08-30 Automatic speed changing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57150331A JPS5940052A (en) 1982-08-30 1982-08-30 Automatic speed changing method

Publications (1)

Publication Number Publication Date
JPS5940052A true JPS5940052A (en) 1984-03-05

Family

ID=15494673

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57150331A Pending JPS5940052A (en) 1982-08-30 1982-08-30 Automatic speed changing method

Country Status (1)

Country Link
JP (1) JPS5940052A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4569255A (en) * 1984-09-12 1986-02-11 Eaton Corporation Automatic transmission controls with off-highway mode
JPS6136549A (en) * 1984-07-28 1986-02-21 Aisin Warner Ltd Automatic speed change gear for car
US4576065A (en) * 1984-09-12 1986-03-18 Eaton Corporation Automatic transmission controls with multiple downshift off-highway mode
US4671139A (en) * 1986-01-27 1987-06-09 General Motors Corporation Clutch-to-clutch coast downshifting in a motor vehicle automatic transmission

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6136549A (en) * 1984-07-28 1986-02-21 Aisin Warner Ltd Automatic speed change gear for car
JPH0660677B2 (en) * 1984-07-28 1994-08-10 アイシン・エィ・ダブリュ株式会社 Automatic transmission for vehicle
US4569255A (en) * 1984-09-12 1986-02-11 Eaton Corporation Automatic transmission controls with off-highway mode
US4576065A (en) * 1984-09-12 1986-03-18 Eaton Corporation Automatic transmission controls with multiple downshift off-highway mode
US4671139A (en) * 1986-01-27 1987-06-09 General Motors Corporation Clutch-to-clutch coast downshifting in a motor vehicle automatic transmission

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