JPH0253251B2 - - Google Patents
Info
- Publication number
- JPH0253251B2 JPH0253251B2 JP57073471A JP7347182A JPH0253251B2 JP H0253251 B2 JPH0253251 B2 JP H0253251B2 JP 57073471 A JP57073471 A JP 57073471A JP 7347182 A JP7347182 A JP 7347182A JP H0253251 B2 JPH0253251 B2 JP H0253251B2
- Authority
- JP
- Japan
- Prior art keywords
- speed
- vehicle speed
- vehicle
- constant speed
- circuit
- 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.)
- Expired - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 claims description 12
- XDDAORKBJWWYJS-UHFFFAOYSA-N glyphosate Chemical compound OC(=O)CNCP(O)(O)=O XDDAORKBJWWYJS-UHFFFAOYSA-N 0.000 claims description 10
- 230000007423 decrease Effects 0.000 claims description 6
- 230000001133 acceleration Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 6
- 239000002826 coolant Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
- B60K31/02—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including electrically actuated servomechanism including an electric control system or a servomechanism in which the vehicle velocity affecting element is actuated electrically
- B60K31/04—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including electrically actuated servomechanism including an electric control system or a servomechanism in which the vehicle velocity affecting element is actuated electrically and means for comparing one electrical quantity, e.g. voltage, pulse, waveform, flux, or the like, with another quantity of a like kind, which comparison means is involved in the development of an electrical signal which is fed into the controlling means
- B60K31/042—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including electrically actuated servomechanism including an electric control system or a servomechanism in which the vehicle velocity affecting element is actuated electrically and means for comparing one electrical quantity, e.g. voltage, pulse, waveform, flux, or the like, with another quantity of a like kind, which comparison means is involved in the development of an electrical signal which is fed into the controlling means where at least one electrical quantity is set by the vehicle operator
- B60K31/045—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including electrically actuated servomechanism including an electric control system or a servomechanism in which the vehicle velocity affecting element is actuated electrically and means for comparing one electrical quantity, e.g. voltage, pulse, waveform, flux, or the like, with another quantity of a like kind, which comparison means is involved in the development of an electrical signal which is fed into the controlling means where at least one electrical quantity is set by the vehicle operator in a memory, e.g. a capacitor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT 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
- B60W2552/00—Input parameters relating to infrastructure
- B60W2552/15—Road slope, i.e. the inclination of a road segment in the longitudinal direction
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
- Controls For Constant Speed Travelling (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Control Of Velocity Or Acceleration (AREA)
Description
【発明の詳細な説明】
本発明は、定速走行中に上り坂などで車速が低
下しても変速機のギヤを自動的にシフトダウンし
て定速走行の維持を確実にするようにした自動変
速機付き車両の定速走行装置に関する。[Detailed Description of the Invention] The present invention is designed to ensure that constant speed driving is maintained by automatically downshifting the gears of the transmission even if the vehicle speed decreases due to an uphill slope or the like while driving at a constant speed. The present invention relates to a constant speed traveling device for a vehicle with an automatic transmission.
最近の車両には車両を自動的に一定速度で走行
させる定速走行装置が装備されているものがあ
る。このような車両においては、運転者が定速走
行させたい速度になるまで車両を加速し、スピー
ドメータを見てその速度になつたとき車速設定ボ
タンなどで車速設定すると、実車速と設定車速と
の偏差を零にするようにスロツトル弁の開度また
はキヤブレターの開度が調整されて実車速が設定
車速になるように速度制御される（たとえば、特
開昭56−2435号を参照）。この定速走行装置は高
速道路などを一定速度で走行する場合は常にアク
セルペダルを踏んでいる必要がないので運転者に
は便利であり、一時的な追い越し運転などの場合
はアクセルペダルを操作すると定速走行機能が解
除され設定車速を越えて加速ができ、アクセルペ
ダルの操作を止めるとエンジンブレーキによる減
速後再び設定車速で定速走行するようになつてい
る。 Some recent vehicles are equipped with constant speed driving devices that automatically drive the vehicle at a constant speed. In such vehicles, if the driver accelerates the vehicle until it reaches the desired speed, looks at the speedometer, and when the speed reaches that speed, sets the vehicle speed using the vehicle speed setting button, etc., and the actual vehicle speed and set vehicle speed are The opening degree of the throttle valve or the opening degree of the carburetor is adjusted so as to make the deviation of 0 to zero, and the speed is controlled so that the actual vehicle speed becomes the set vehicle speed (for example, see Japanese Patent Laid-Open No. 56-2435). This constant-speed driving device is convenient for drivers because it is not necessary to constantly press the accelerator pedal when driving at a constant speed on a highway, etc., and when driving temporarily, such as when overtaking, it is convenient for drivers to operate the accelerator pedal. When the constant speed driving function is canceled, the vehicle can accelerate beyond the set vehicle speed, and when the accelerator pedal is stopped, engine braking decelerates and the vehicle resumes constant speed driving at the set vehicle speed.
第１図は従来の定速走行装置の構成を示すブロ
ツク線図である。この装置においては、車速セン
サ１から実車速VAに応じた車速信号を出力させ
ながら実車速が所望の車速に達したとき運転者が
車速設定スイツチ２を操作するとそのときの実車
速が設定車速として車速記憶回路３に記憶され
る。差動増幅器４では、車速記憶回路３に記憶さ
れた設定車速VMと実車速VAとが比較され、その
差（VA−VM）に応じた車速差信号が出力され、
この車速差信号に応じてアクチユエータ駆動回路
５によりアクチユエータ６の動作量が決定され、
それによりスロツトル７の開閉が制御され、エン
ジンの回転が制御される。また定速走行中ブレー
キやクラツチを操作するとたとえばブレーキスイ
ツチ９からの信号を受けて解除信号発生回路１１
から解除信号が出力され、アクチユエータ駆動用
電源回路１２が遮断されてアクチユエータ駆動回
路５の動作を停止させ定速走行制御を解除する。
また、定速走行中実車速VAが設定車速VMよりも
予め定めた値VBだけ落ち込んできたときは判別
回路１３からの出力信号によりアクチユエータ駆
動用電源回路１２を遮断しやはり定速走行制御を
解除する。 FIG. 1 is a block diagram showing the configuration of a conventional constant speed traveling device. In this device, when the vehicle speed sensor 1 outputs a vehicle speed signal corresponding to the actual vehicle speed V A and the driver operates the vehicle speed setting switch 2 when the actual vehicle speed reaches a desired vehicle speed, the actual vehicle speed at that time becomes the set vehicle speed. The vehicle speed is stored in the vehicle speed storage circuit 3 as follows. The differential amplifier 4 compares the set vehicle speed V M stored in the vehicle speed storage circuit 3 with the actual vehicle speed V A , and outputs a vehicle speed difference signal corresponding to the difference (V A - V M ).
The amount of operation of the actuator 6 is determined by the actuator drive circuit 5 in accordance with this vehicle speed difference signal,
Thereby, the opening and closing of the throttle 7 is controlled, and the rotation of the engine is controlled. Further, when operating the brake or clutch while driving at a constant speed, the release signal generating circuit 11 receives a signal from the brake switch 9, for example.
A release signal is output from , the actuator drive power supply circuit 12 is cut off, the operation of the actuator drive circuit 5 is stopped, and the constant speed running control is canceled.
Furthermore, when the actual vehicle speed V A falls by a predetermined value V B from the set vehicle speed V M while traveling at a constant speed, the actuator drive power supply circuit 12 is shut off by the output signal from the discrimination circuit 13 and the vehicle is still traveling at a constant speed. Release control.
ところで自動変速機付き車両においては、運転
者がアクセルペダルを踏み込むとキツクダウンス
イツチがオンしてソレノイドが付勢されソレノイ
ドのプツシユロツドがトランスミツシヨンケース
内のコントロールバルブのダウンシフトバルブを
押してある車速限度内で第３速から第２速または
第２速から第１速へと強制減速を行ない大きな加
速力を得るようにしたキツクダウン機能が設けら
れている。そこでこのような自動変速機付き車両
に定速走行装置を装備した場合、車両が上り坂に
さしかかつて走行速度が低下すると、上記したよ
うに定速走行装置の働きでスロツトルバルブの開
度を大きくし車速を増すようにするか、定速走行
モードにあるためアクセルペダルは踏まずにおく
ためにキツクダウンスイツチがオンせず従つてキ
ツクダウン機能が働かず大きな加速力が得られな
いために車速が低下しその値がVBを下回ると定
速走行制御が解除されてしまい、さらにトルクが
不足してエンジンが停止するという問題がある。 By the way, in a vehicle with an automatic transmission, when the driver depresses the accelerator pedal, the down switch turns on, energizes the solenoid, and the solenoid's push rod pushes the downshift valve of the control valve inside the transmission case to reach the vehicle speed limit. A kickdown function is provided to obtain a large acceleration force by forcibly decelerating from third speed to second speed or from second speed to first speed. Therefore, when such a vehicle with an automatic transmission is equipped with a constant speed traveling device, when the vehicle goes uphill and the traveling speed decreases, the constant speed traveling device acts as described above to reduce the opening of the throttle valve. Either increase the speed by increasing the vehicle speed, or because the engine is in constant speed driving mode and the accelerator pedal is not pressed, the kick-down switch will not turn on, so the kick-down function will not work and large acceleration force will not be obtained. When the vehicle speed decreases and its value falls below V B , constant speed driving control is canceled, and there is a further problem that torque is insufficient and the engine stops.
このような場合は、定速走行制御が解除される
前にアクセルペダルを踏み込めばキツクダウン機
能が働いて強制減速され大きな加速力が得られ再
び定速走行が維持できるが、煩わしいという問題
がある。 In such a case, if the accelerator pedal is pressed before the constant speed cruise control is released, the kickdown function will be activated and the vehicle will be forcibly decelerated to obtain a large acceleration force and be able to maintain the constant speed again, but this poses the problem of being troublesome.
本発明は上記の点にかんがみてなされたもの
で、車両が車速設定操作により設定された速度で
定速走行するように速度制御する定速走行装置に
おいて、定速走行の維持を確実にするため、フル
スロツトルの状態で実車速が設定車速より所定値
以上低下したときは、変速機のギヤをシフトダウ
ンするようにしたものである。 The present invention has been made in view of the above points, and is intended to ensure maintenance of constant speed running in a constant speed running device that controls the speed of a vehicle so that it runs at a constant speed set by a vehicle speed setting operation. When the actual vehicle speed drops by a predetermined value or more from the set vehicle speed under full throttle, the gear of the transmission is shifted down.
以下本発明を図面に基づいて説明する。 The present invention will be explained below based on the drawings.
第２図は本発明の一実施例を示す図である。 FIG. 2 is a diagram showing an embodiment of the present invention.
この実施例は第１図に示した従来の定速走行装
置の構成に加えて、実車速VAと設定車速VMとの
車速差が予め定めた値VC（ただしVC＜VB）以上
か否かを判別しVC以上であれば出力する判別回
路１４と、アクチユエータ駆動回路５の出力信号
が最大値IBであるか否かを判別し最大値すなわち
IA−IB＝０であれば出力する判別回路１５と、判
別回路１４と１５の出力の論理積をとるアンド回
路１６とを設けたもので、１７はアクセルペダル
を踏み込んだときまたはアンド回路１６の出力に
よりオンするキツクダウンスイツチ、１８はキツ
クダウンスイツチ１７がオンしたとき作動する油
圧切換用ソレノイドバルブ、１９はトランスミツ
シヨンで、これらによりキツクダウン機構（破線
で囲んで示してある）を構成している。なお、判
別回路１３と１４の比較基準VBとVCの関係は第
３図に示すようにVB＞VCとなつている。 In this embodiment, in addition to the configuration of the conventional constant speed traveling device shown in FIG. 1, the vehicle speed difference between the actual vehicle speed V A and the set vehicle speed V M is a predetermined value V C (where V C <V B ). A determination circuit 14 that determines whether the output signal is equal to or higher than V C and outputs an output signal if it is equal to or higher than V C , and a determination circuit 14 that determines whether the output signal of the actuator drive circuit 5 is the maximum value I
It is provided with a discrimination circuit 15 that outputs an output if I A −I B = 0, and an AND circuit 16 that takes the AND of the outputs of the discrimination circuits 14 and 15. 16 is a kick-down switch that is turned on by the output; 18 is a hydraulic pressure switching solenoid valve that is activated when the kick-down switch 17 is turned on; 19 is a transmission; these constitute a kick-down mechanism (shown surrounded by a broken line). are doing. Note that the relationship between the comparison standards V B and V C of the discrimination circuits 13 and 14 is V B >V C as shown in FIG.
次に上記定速走行装置の動作を説明する。 Next, the operation of the constant speed traveling device will be explained.
判別回路１３は実車速VAと設定車速VMとの差
が予め定めた値VB以上になつたとき出力し、判
別回路１４は実車速VAと設定車速VMとの差が予
め定めた値VC以上になつたとき出力するが、VB
とVCとの間には第３図に示したようにVB＞VCの
関係があるから車速低下時は判別回路１３より先
に判別回路１４から出力する。またアクチユエー
タ駆動回路５の出力信号IAを判別回路１５に入力
し、信号IAが出力信号として出力可能な最大値IB
に等しいとき（すなわちIA−IB＝０のとき）判別
回路１５から出力信号が出る。判別回路１４と判
別回路１５の両方から出力信号が出ているときア
ンドゲート１６のアンド条件が成立しキツクダウ
ンスイツチ１７がオンする。その結果油圧切換用
ソレノイドバルブ１８が作動しシフトダウンが行
なわれ、それまでの駆動力より大きい駆動力が得
られる。第４図はアクチユエータ駆動回路の出力
信号IAが最大値IBまではスロツトルの開度が比例
的に増加する様子を示す。 The discrimination circuit 13 outputs an output when the difference between the actual vehicle speed V A and the set vehicle speed V M exceeds a predetermined value V B , and the discrimination circuit 14 outputs an output when the difference between the actual vehicle speed V A and the set vehicle speed V M exceeds a predetermined value V B. It outputs when the value exceeds V C , but V B
Since there is a relationship between V B and V C as shown in FIG. 3, V B > V C , the output is output from the discriminating circuit 14 before the discriminating circuit 13 when the vehicle speed decreases. In addition, the output signal I A of the actuator drive circuit 5 is input to the discrimination circuit 15, and the signal I A is the maximum value I B that can be output as an output signal.
(ie, when I A −I B =0), the discrimination circuit 15 outputs an output signal. When output signals are output from both the discrimination circuit 14 and the discrimination circuit 15, the AND condition of the AND gate 16 is satisfied and the kickdown switch 17 is turned on. As a result, the hydraulic pressure switching solenoid valve 18 is actuated to perform a downshift, and a driving force greater than the previous driving force is obtained. FIG. 4 shows how the throttle opening increases proportionally until the output signal IA of the actuator drive circuit reaches the maximum value IB .
次に、定速走行装置の定速走行制御をエンジン
冷却水の温度に応じて解除するようにした例につ
いて説明する。 Next, an example will be described in which the constant speed driving control of the constant speed driving device is canceled depending on the temperature of the engine coolant.
第５図に示すように、エンジン冷却水温セン２
０と比較器２１とを設け、該センサ２０により検
出されるエンジン冷却水温度Taを比較器２１で
予め設定された基準温度TRと比較し、温度Taが
基準温度TRより大きいとき出力する解除信号で
第２図に示したアクチユエータ駆動用電源回路１
２を遮断するようにしたもので、このようにして
定速走行制御を解除する。第６図は水温センサで
あるサーミスタＲと抵抗R1，R2，R3とで構成し
た水温検出回路で、基準値VRはVR＝R3／（R2＋
R3）で表わされて一定値であるが、温度信号Va
はVa＝Ｒ／（Ｒ＋R1）で表わされーミスタＲの
抵抗変化によつて変化する。サーミスタＲの抵抗
値は第７図のように変化するので、比較器２１は
Va＞VRのとき“０”、Va＜VRのとき“１”を出
力する。 As shown in Figure 5, the engine coolant temperature sensor 2
0 and a comparator 21 are provided, and the engine cooling water temperature T a detected by the sensor 20 is compared with a reference temperature T R set in advance by the comparator 21, and when the temperature T a is larger than the reference temperature T R Actuator drive power supply circuit 1 shown in Figure 2 with the output release signal
2, and in this way constant speed driving control is canceled. Figure 6 shows a water temperature detection circuit composed of a thermistor R, which is a water temperature sensor, and resistors R 1 , R 2 , and R 3 . The reference value V R is V R = R 3 / (R 2 +
R 3 ) is a constant value, but the temperature signal V a
is expressed as V a =R/(R+R 1 ) and changes depending on the resistance change of Mister R. Since the resistance value of the thermistor R changes as shown in Fig. 7, the comparator 21
When V a > V R , “0” is output, and when V a < V R , “1” is output.
以上説明したように、本発明は、定速走行装置
を装備した自動変速機付き車両において、実車速
が設定車速より予め定めた値以上低下し且つ設定
車速で定速走行させるべく出力される信号が最大
のとき自動変速機のギヤをシフトダウンするよう
にしたので、定速走行中坂道にさしかかつて車速
が低下したときでも駆動力が増し設定車速で定速
走行を続けることができる。 As explained above, in a vehicle with an automatic transmission equipped with a constant speed traveling device, the present invention provides a signal that is output to cause the vehicle to travel at a constant speed at the set vehicle speed when the actual vehicle speed decreases by a predetermined value or more from the set vehicle speed. Since the gear of the automatic transmission is downshifted when the vehicle is at its maximum, even if the vehicle speed drops while driving at a constant speed on a hill, the driving force increases and the vehicle can continue traveling at the set speed.
また、定速走行を維持するためには、設定車速
と所定値の差は小さいほど良いが、そうすると軽
微な車速変動でもシフトダウンが頻繁に行なわれ
てしまい乗り心地が悪くなる。従つて、確実なシ
フトダウン条件の判別が必要になるが、本発明は
フルスロツトルで検出しているので確実にその条
件を判別できる。 Further, in order to maintain constant speed driving, the smaller the difference between the set vehicle speed and the predetermined value, the better, but if this is done, downshifts will be performed frequently even with slight changes in vehicle speed, resulting in poor ride comfort. Therefore, it is necessary to reliably determine the downshift condition, but since the present invention detects at full throttle, the condition can be reliably determined.
また、エンジン冷却水温を検出し、該水温が所
定値以上になつたとき定速走行制御を解除するよ
うにすれば、長時間定速走行したときエンジンの
オーバーヒートに気付かずエンジンが故障するの
を防止することができる。 In addition, by detecting the engine cooling water temperature and canceling constant speed driving control when the water temperature reaches a predetermined value, it is possible to prevent the engine from overheating and causing engine failure when driving at a constant speed for a long time. It can be prevented.
第１図は従来の車両用定速走行装置のブロツク
線図、第２図は本発明による車両用定速走行装置
の一実施例のブロツク線図、第３図は設定車速
VMと実車速VAとのずれの一例を示すグラフ、第
４図はアクチユエータ駆動回路の出力とスロツト
ル開度との関係を示すグラフ、第５図はエンジン
冷却水温により定速走行制御を解除する解除信号
発生部のブロツク線図、第６図は第５図に示した
解除信号発生部の一実施例の回路図、第７図はサ
ーミスタの温度抵抗特性図である。
１……車速センサ、２……セツトスイツチ、３
……車速記憶回路、４……差動増幅器、５……ア
クチユエータ駆動回路、６……アクチユエータ、
７……スロツトル、９……ブレーキスイツチ、１
１……解除信号発生回路、１２……アクチユエー
タ駆動用電源回路、１３，１４，１５……判別回
路、１６……アンド回路、１７……キツクダウン
スイツチ、１８……ダウンシフトソレノイド、１
９……トランスミツシヨン、２０……エンジン冷
却水温センサ、２１……比較器。
Fig. 1 is a block diagram of a conventional constant speed running device for a vehicle, Fig. 2 is a block diagram of an embodiment of a constant speed running device for a vehicle according to the present invention, and Fig. 3 is a set vehicle speed.
A graph showing an example of the deviation between V M and the actual vehicle speed V A. Fig. 4 is a graph showing the relationship between the output of the actuator drive circuit and the throttle opening. Fig. 5 is a graph showing the relationship between the output of the actuator drive circuit and the throttle opening. Fig. 5 shows the cancellation of constant speed driving control depending on the engine coolant temperature. FIG. 6 is a circuit diagram of an embodiment of the release signal generating section shown in FIG. 5, and FIG. 7 is a temperature resistance characteristic diagram of a thermistor. 1...Vehicle speed sensor, 2...Set switch, 3
... Vehicle speed memory circuit, 4 ... Differential amplifier, 5 ... Actuator drive circuit, 6 ... Actuator,
7... Throttle, 9... Brake switch, 1
DESCRIPTION OF SYMBOLS 1... Release signal generation circuit, 12... Actuator drive power supply circuit, 13, 14, 15... Discrimination circuit, 16... AND circuit, 17... Kick down switch, 18... Down shift solenoid, 1
9...Transmission, 20...Engine coolant temperature sensor, 21...Comparator.
Claims (1)
定速走行するように速度制御する自動変速機付き
車両の定速走行装置において、実車速が設定車速
より所定値以上低下したとき出力する速度判別手
段と、エンジンがフルスロツトルの状態であるこ
とを判別する加速判別手段と、前記速度判別手段
および加速判別手段が出力したとき自動変速機の
キツクダウンスイツチを作動してギヤのシフトダ
ウンを指令する信号を出力するシフトダウン指令
手段とを有することを特徴とする車両用定速走行
装置。1. In a constant speed traveling device for a vehicle with an automatic transmission that controls the speed so that the vehicle travels at a constant speed set by a vehicle speed setting operation, a speed determination means that outputs when the actual vehicle speed decreases by a predetermined value or more from the set vehicle speed. an acceleration determining means for determining whether the engine is in a full throttle state; and a signal for operating a kick-down switch of an automatic transmission to instruct a gear shift down when the speed determining means and the acceleration determining means output a signal. 1. A constant speed traveling device for a vehicle, comprising: means for outputting a shift down command.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57073471A JPS58192114A (en) | 1982-05-04 | 1982-05-04 | Traveling device of vehicle at constant speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57073471A JPS58192114A (en) | 1982-05-04 | 1982-05-04 | Traveling device of vehicle at constant speed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58192114A JPS58192114A (en) | 1983-11-09 |
| JPH0253251B2 true JPH0253251B2 (en) | 1990-11-16 |
Family
ID=13519217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57073471A Granted JPS58192114A (en) | 1982-05-04 | 1982-05-04 | Traveling device of vehicle at constant speed |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58192114A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60139633U (en) * | 1984-02-29 | 1985-09-14 | 日産ディーゼル工業株式会社 | Automatic transmission for vehicles |
| US4697478A (en) * | 1985-09-11 | 1987-10-06 | Mazda Motor Corporation | Automatic cruise control system for a motor vehicle |
| JPH0714703B2 (en) * | 1987-10-27 | 1995-02-22 | マツダ株式会社 | Vehicle constant speed control device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57117010A (en) * | 1981-01-12 | 1982-07-21 | Toyota Motor Corp | Constant speed running device for vehicle |
-
1982
- 1982-05-04 JP JP57073471A patent/JPS58192114A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57117010A (en) * | 1981-01-12 | 1982-07-21 | Toyota Motor Corp | Constant speed running device for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58192114A (en) | 1983-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0937916B1 (en) | Brake signal failure detecting system and method for automatic transmission | |
| US5393278A (en) | Shift control apparatus for shifting up transmission upon re-acceleration following deceleration of vehicle | |
| JPH10292862A (en) | Controller of fastening element | |
| JPS6084460A (en) | Control system for automatic transmission | |
| JP4946236B2 (en) | Lock-up control device | |
| US5474508A (en) | Control system for automatic transmission | |
| JP3528431B2 (en) | Automatic traveling control device | |
| JPH0253251B2 (en) | ||
| JPS601031A (en) | Travelling controller for automobile | |
| JPH10184899A (en) | Controller of automatic transmission | |
| JP2674166B2 (en) | Automatic transmission clutch control device | |
| JP2921261B2 (en) | Shift control device for automatic transmission for vehicle | |
| JPS61116163A (en) | Method of controlling speed change of electronic control type automatic speed change gear for vehicle | |
| JPH0155693B2 (en) | ||
| JPH0272268A (en) | Automatic clutch controller for vehicle equipped with continuously variable transmission | |
| JP3070253B2 (en) | Shift control device for automatic transmission for vehicle | |
| JP2590590B2 (en) | Constant speed traveling equipment for vehicles | |
| JPH0796778A (en) | Automatic gearshifter of vehicle | |
| JPH09323565A (en) | Vehicle drive system control device | |
| JPS6136046A (en) | Release of operation of brake hydraulic pressure holding apparatus | |
| JPH0727233Y2 (en) | Car constant speed running control device | |
| JPH0574744B2 (en) | ||
| JPH03121367A (en) | Speed change control device of automatic transmission | |
| KR100217063B1 (en) | Transmission controller and controlling method | |
| JP3177810B2 (en) | Shift control device for automatic transmission for vehicle |