JPH0324374B2 - - Google Patents
Info
- Publication number
- JPH0324374B2 JPH0324374B2 JP17554583A JP17554583A JPH0324374B2 JP H0324374 B2 JPH0324374 B2 JP H0324374B2 JP 17554583 A JP17554583 A JP 17554583A JP 17554583 A JP17554583 A JP 17554583A JP H0324374 B2 JPH0324374 B2 JP H0324374B2
- Authority
- JP
- Japan
- Prior art keywords
- vehicle speed
- switch
- speed
- predetermined
- constant speed
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process 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
- B60K31/047—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 the memory being digital
Description
【発明の詳細な説明】
〔本発明の対象〕
本発明は、車輌の速度を記憶し、車輌を自動的
に記憶車速に維持する定速走行装置に関し、特に
所定車速以下のとき定速制御を禁止する定速走行
装置に関する。[Detailed Description of the Invention] [Object of the Invention] The present invention relates to a constant speed traveling device that stores the speed of a vehicle and automatically maintains the vehicle at the memorized speed. Concerning prohibited constant speed traveling devices.
定速走行装置としては、本出願人の先願に係る
もの（特開昭59−160055号）がある。この装置で
は、現行の車輌速度をパルス数として検出して、
そのパルス数に比例するアナログ電圧を車速信号
として得る。ドライバは所望の車輌速度に到達し
た時、定速走行セツトスイツチを操作してその時
点の車速信号を記憶回路にセツト（記憶）する。
速度制御装置はセツトされた車速信号を比較回路
の一方の基準電圧として参照し、それと現行の車
輌速度との差に基づいて、その差が零となる方向
にスロツトル開度を調整する。この装置では、セ
ツトスイツチの操作を持続なすと、スロツトル開
度を小さくする方向に制御して、車輌は減速しな
がら走行し、セツトスイツチの操作を止めた時の
速度を記憶する、いわゆる減速セツト機能を備え
ている。さらに、車速が所定車速以下（例えば、
40Km／ｈ以下）になると、記憶車速をクリアして
定速走行を解除する。
As a constant speed traveling device, there is one related to an earlier application of the present applicant (Japanese Patent Laid-Open No. 160055/1983). This device detects the current vehicle speed as a number of pulses,
An analog voltage proportional to the number of pulses is obtained as a vehicle speed signal. When the driver reaches a desired vehicle speed, he operates the constant speed travel set switch to set (store) the vehicle speed signal at that time in the memory circuit.
The speed control device refers to the set vehicle speed signal as a reference voltage for one of the comparison circuits, and adjusts the throttle opening based on the difference between it and the current vehicle speed in a direction such that the difference becomes zero. This device has a so-called deceleration set function that, when the set switch is continued to be operated, reduces the throttle opening, causing the vehicle to travel while decelerating, and stores the speed when the set switch is no longer operated. We are prepared. Furthermore, if the vehicle speed is below a predetermined vehicle speed (for example,
(40km/h or less), the memorized vehicle speed is cleared and constant speed driving is canceled.
この定速走行装置では、前述の如く走速走行制
御中にセツトスイツチを操作して、この操作を持
続すると、車輌は減速し、セツトスイツチの操作
を止めた時の速度を記憶し、定速走行制御を開始
する。ところが、セツトスイツチの操作を止めた
時の車速が所定車速以下である場合には、記憶車
速はクリアされて定速走行は解除される。従つ
て、この時には、定速走行に戻ることができな
い。このため、ドライバはアクセルで加速し、車
速が所定車速以上となつた時点でセツトスイツチ
を操作しなければならず、操作が煩わしい。さら
に、ドライバには所定車速が正確には解からない
ため、所定車速付近の車速で定速走行のセツトを
行う時には、この様な操作を繰り返さなければな
らない場合も生じる。
In this constant speed running device, as described above, when the set switch is operated during running speed control and this operation is continued, the vehicle decelerates, the speed at which the set switch is stopped is memorized, and the constant speed running control is performed. Start. However, if the vehicle speed when the set switch is stopped is less than the predetermined vehicle speed, the stored vehicle speed is cleared and constant speed driving is canceled. Therefore, at this time, it is not possible to return to constant speed running. Therefore, the driver must accelerate with the accelerator and operate the set switch when the vehicle speed reaches a predetermined speed or higher, which is cumbersome to operate. Furthermore, since the driver does not know the predetermined vehicle speed accurately, such operations may have to be repeated when setting constant speed driving at a vehicle speed near the predetermined vehicle speed.
そこで、本発明は、セツトスイツチを操作して
減速した際にも、定速走行が解除されないように
することを、その技術的課題とするものである。
Therefore, the technical object of the present invention is to prevent the constant speed running from being canceled even when the set switch is operated to decelerate the vehicle.
上記技術的課題を解決するために講じた技術的
手段は、定速走行を解除、禁止する所定車速の他
に、セツトスイツチの操作による減速を制限する
第２の所定の車速を設け、該減速が第２の所定車
速に達すると、減速を停止して第２の所定車速に
よる定速走行を自動的にセツトする、ことであ
る。
The technical means taken to solve the above technical problem is that, in addition to a predetermined vehicle speed that cancels or prohibits constant speed driving, a second predetermined vehicle speed that limits deceleration due to the operation of a set switch is provided, and the deceleration is When the second predetermined vehicle speed is reached, deceleration is stopped and constant speed running at the second predetermined vehicle speed is automatically set.
記技術的手段は、次のように作用する。すなわ
ち、セツトスイツチの操作により減速中に車速が
第２の所定車速に達すると、減速を停止して第２
の所定車速による定速走行を自動的にセツトする
ため、車輌の減速は定速走行を解除、禁止する所
定車速に達することがないので、セツトスイツチ
の操作により減速中に誤つて、定速走行を解除し
てしまう事はない。
The technical means described above works as follows. That is, when the vehicle speed reaches the second predetermined vehicle speed during deceleration due to operation of the set switch, the deceleration is stopped and the second predetermined speed is reached.
Since constant-speed driving is automatically set at a predetermined vehicle speed, deceleration of the vehicle does not reach the predetermined vehicle speed that cancels or prohibits constant-speed driving. There is no way to cancel it.
以下、上記技術的手段の一具体例を示す実施例
について説明する。
An example illustrating a specific example of the above technical means will be described below.
第１図に定速走行装置の電気回路を示す。この
回路は、本例ではシングルチツプマイクロコンピ
ユータCPUを中心として構成され、マイクロコ
ンピユータCPUの入力ポートＲ１〜Ｒ５には車
速信号を検出するリードスイツチSW１、クラツ
チ（図示せず）の踏み込みを検出するクラツチス
イツチSW２、ブレーキ（図示せず）の踏み込み
を検出するブレーキスイツチSW３、セツトスイ
ツチSW４、リジユームスイツチSW５の出力が
インターフエースICIを介して入力される。 Figure 1 shows the electric circuit of the constant speed traveling device. In this example, this circuit is mainly composed of a single-chip microcomputer CPU, and input ports R1 to R5 of the microcomputer CPU include a reed switch SW1 for detecting a vehicle speed signal and a clutch for detecting depression of a clutch (not shown). The outputs of a switch SW2, a brake switch SW3 that detects depression of a brake (not shown), a set switch SW4, and a resume switch SW5 are inputted via the interface ICI.
リードスイツチSW１の近傍には、図示しない
スピードメータケーブルに接続された永久磁石
PMが配置されており、車輌の移動によつて永久
磁石PMが回転すると、リードスイツチSW１の
接点が開閉し、車速に比例した周波数のパルス
（車速信号）がCPUに送られる。 Near reed switch SW1, there is a permanent magnet connected to the speedometer cable (not shown).
When the permanent magnet PM rotates as the vehicle moves, the contacts of the reed switch SW1 open and close, and a pulse (vehicle speed signal) with a frequency proportional to the vehicle speed is sent to the CPU.
クラツチスイツチＷ２は、車輌のクラツチペダ
ルに連動して開閉し、ストツプスイツチSW３は
車輌のブレーキペダルに連動して開閉する。スト
ツプスイツチSW３にはストツプランプＬが接続
されており、SW３のオン（閉）でストラツプラ
ンプＬが点灯する。 The clutch switch W2 opens and closes in conjunction with the vehicle's clutch pedal, and the stop switch SW3 opens and closes in conjunction with the vehicle's brake pedal. A stop lamp L is connected to the stop switch SW3, and the strap lamp L lights up when SW3 is turned on (closed).
セツトスイツチSW４およびリジユームスイツ
チSW５は、押しボタンスイツチであり、インス
トルメントパネル上のドライバの操作し易い位置
に配置されている。セツトスイツチSW４の押圧
により車速が記憶されると共に定速制御が開始さ
れ、一方クラツチスイツチSW２又はブレーキス
イツチSSW３の押圧で定速走行が解除されるが、
記憶された車速は残る。リジユームスイツチSW
５を押せば、定速走行を解除する前の記憶車速で
定速走行制御が開始される。 The set switch SW4 and the resume switch SW5 are push button switches, and are placed on the instrument panel at positions that are easy for the driver to operate. By pressing the set switch SW4, the vehicle speed is memorized and constant speed control is started, while by pressing the clutch switch SW2 or brake switch SSW3, constant speed driving is canceled.
The memorized vehicle speed remains. Rigidium Switch SW
If 5 is pressed, constant speed driving control is started at the memorized vehicle speed before constant speed driving is canceled.
マイクロコンピユータCPUの出力ポート０１，
０２にはそれぞれ駆動回路DV１およびDV２が
接続され、駆動回路DV１の出力には後述する負
圧アクチユエータ１００を制御するコントロール
用ソレノイドSL１が接続され、駆動回路DV２の
出力にはリリース用ソレノイドSL２が接続され
ている。 Microcomputer CPU output port 01,
02 are connected to drive circuits DV1 and DV2, respectively, a control solenoid SL1 for controlling a negative pressure actuator 100 (described later) is connected to the output of the drive circuit DV1, and a release solenoid SL2 is connected to the output of the drive circuit DV2. has been done.
自己保持回路IC２はブレーキスイツチSW３が
オンされると、出力にＨレベルの信号を保持し、
CPUの動作とは別リリースソレノイドSL２を除
勢し、セツトスイツチSW４をリジユームスイツ
チSW５のオンで出力にＬレベルの信号を保持
し、リリースソレノイドを附勢する。 When the brake switch SW3 is turned on, the self-holding circuit IC2 holds an H level signal at the output,
Separate from the operation of the CPU, the release solenoid SL2 is deenergized, the set switch SW4 is held at the L level signal at the output by turning on the resume switch SW5, and the release solenoid is energized.
第２図に、第１図の電気回路で制御される負圧
アクチユエータ１００の構成を示す。第２図を参
照して説明する。ハウジング１０１は２つの部分
１０１ａと１０１ｂでなつている。ダイアフラム
１０２は、２つの部分１０１ａと１０１ｂのフラ
ンジ部分で挾持されている。ダイアフラム１０２
とハウジング１０１ａで囲まれた空間が負圧室で
あり、ダイアフラム１０２とハウジング１０１ｂ
で囲まれた空間は大気と連通している。１０３
は、ハウジング１０１ａとダイアフラム１０２の
官に介挿された圧縮コイルスプリングであり、負
圧室の圧力が大気圧に近いときにはダイアフラム
１０２を仮想線の位置まで押し戻す。ダイアフラ
ム１０２の中央付近に固着した突起１０４が、ス
ロツトルバルブ１０５のリンクと接続されてい
る。ハウジング１０１ａには、インテークマニホ
ールド１０６と連通する取入口１０７と、大気取
入口１０８および１０９が設けてある。 FIG. 2 shows the configuration of the negative pressure actuator 100 controlled by the electric circuit shown in FIG. 1. This will be explained with reference to FIG. The housing 101 consists of two parts 101a and 101b. The diaphragm 102 is held between the flange portions of two portions 101a and 101b. Diaphragm 102
The space surrounded by the housing 101a and the diaphragm 102 is a negative pressure chamber, and the diaphragm 102 and the housing 101b
The space surrounded by is in communication with the atmosphere. 103
is a compression coil spring inserted between the housing 101a and the diaphragm 102, and pushes the diaphragm 102 back to the position of the imaginary line when the pressure in the negative pressure chamber is close to atmospheric pressure. A projection 104 fixed near the center of the diaphragm 102 is connected to a link of a throttle valve 105. The housing 101a is provided with an intake port 107 that communicates with the intake manifold 106, and air intake ports 108 and 109.
１１０が負圧制御弁であり、１１１が負圧解放
弁であつて両者ともハウジング１０１ａに固着さ
れている。負圧制御弁１１０の可動片１１２は、
Ｐを支点としてて傾動可能でありもう一端に引張
コイルスプリング１１３が接続され、もう一端は
コントロールソレノイドSL１に対向している。
可動片１１２の両端が弁体として機能し、それら
がソレノイドSL１の付勢消勢に対応して負圧取
入口１０７開放、大気取入口１０８閉塞（図示の
状態）または負圧取入口１０７閉塞、大気取入口
１０８開放とする。 110 is a negative pressure control valve, and 111 is a negative pressure release valve, both of which are fixed to the housing 101a. The movable piece 112 of the negative pressure control valve 110 is
It is tiltable about P as a fulcrum, and a tension coil spring 113 is connected to the other end, and the other end faces the control solenoid SL1.
Both ends of the movable piece 112 function as valve bodies, and in response to energization and deactivation of the solenoid SL1, they open the negative pressure intake port 107, close the atmospheric intake port 108 (as shown), or close the negative pressure intake port 107. The air intake port 108 is opened.
負圧解放弁１１１も１１０と同様に可動片１１
４、引張コイルスプリング１１５およびソレノイ
ドSL２を有するが、可動片１１４は大気取入口
１０９の閉塞（図示の状態）又は開放を行なう。
なお、１１６がアクセルペダル、１１７が引張コ
イルスプリングである。 Similarly to the negative pressure release valve 110, the movable piece 11
4. It has a tension coil spring 115 and a solenoid SL2, and the movable piece 114 closes (the state shown in the figure) or opens the air intake port 109.
Note that 116 is an accelerator pedal, and 117 is a tension coil spring.
定速走行制御時には、CPU内で記憶車速とそ
の時の車速が比較され、その差が等しくなるよう
にコントロールソレノイド制御デユーテイを決定
する。例えば減速が必要な場合にはデユーテイ比
は低くなり、負圧制御弁１１０が負圧アクチユエ
ータ１００内を大気を連通させる時間の割合を大
きく、負圧アクチユエータ１００によつてスロツ
トルバルブを閉じる。逆に加速が必要なときはデ
ユーテイ比を大きくし、負圧アクチユエータ１０
０によつてスロツトルバルブを開ける。 During constant speed driving control, the stored vehicle speed and the current vehicle speed are compared in the CPU, and the control solenoid control duty is determined so that the difference is equal. For example, when deceleration is required, the duty ratio is lowered, the proportion of time during which the negative pressure control valve 110 communicates the inside of the negative pressure actuator 100 with the atmosphere is increased, and the throttle valve is closed by the negative pressure actuator 100. Conversely, when acceleration is required, the duty ratio is increased and the negative pressure actuator 10
Open the throttle valve by 0.
次にCDPU内で実行されるプログラム（第３図
〜第７図）について説明する。 Next, the programs (FIGS. 3 to 7) executed within the CDPU will be explained.
第３図を参照する。まず電源がオンされて
CPUに電圧が印加されると、初期設定が行われ
る。すなわち出力ポートを初期レベルにセツト
し、メモリの内容をクリアする（S1）。次にステ
ツプS2にて現車速が定速リミツト１（例えば40
Km／ｈ）以下か否か判断される。NOのときは、
ステツプS6にてブレーキスイツチSW３オン
（閉）か否か、S7にてクラツチスイツチSW２オ
ンか否かが判断される。いずれかのスイツチがオ
ンされていれば、ステツプS8で状態Ｓが０とさ
れ、いずれのスイツチもオンされていなければス
テツプS9でセツトスイツチSW４のオンが判断さ
れ、YESの場合すなわちオンされていると、ス
テツプS10にて状態Ｓは２とされる。ステツプ
S11にてリジユームステツプSW５がオンされて
いると、ステツプS12にて状態Ｓが３とされる。 See Figure 3. First the power is turned on
When voltage is applied to the CPU, initialization takes place. That is, the output port is set to the initial level and the contents of the memory are cleared (S1). Next, in step S2, the current vehicle speed is set to constant speed limit 1 (for example, 40
Km/h) or less. When NO,
In step S6, it is determined whether the brake switch SW3 is on (closed), and in S7, it is determined whether the clutch switch SW2 is on. If any switch is turned on, the status S is set to 0 in step S8, and if none of the switches are turned on, it is determined in step S9 that the set switch SW4 is on. , the state S is set to 2 in step S10. step
If the resume step SW5 is turned on in S11, the state S is set to 3 in step S12.
ステツプS2に戻つて、現車速が定速リミツト
車速１（例えば、40Km／ｈ）以下であれば、ステ
ツプS3にて記憶をクリアしステツプS8にて状態
Ｓを０とする。これが、定速リミツト機能であ
り、現車速が定速リミツト車速１以下の時には、
待機状態（Ｓ＝０）として、CPUによるアクチ
ユエータのソレノイド制御は行われず、定速走行
制御が禁止される。 Returning to step S2, if the current vehicle speed is less than the constant speed limit vehicle speed 1 (for example, 40 km/h), the memory is cleared in step S3, and the state S is set to 0 in step S8. This is the constant speed limit function, and when the current vehicle speed is less than the constant speed limit vehicle speed 1,
In the standby state (S=0), solenoid control of the actuator by the CPU is not performed, and constant speed driving control is prohibited.
ステツプS13では状態Ｓの値０〜３に応じて４
つのサブリーチンS14〜S17に分岐させる。 In step S13, 4 is set according to the value 0 to 3 of state S.
It branches into two sublithins S14 to S17.
Ｓ＝０の待機状態サブルーチンS14（第４図）
では、S25およびS26にてコントロールソレノイ
ドSL１およびリリースソレノイドSL２がそれぞ
れオフとされスロツトル制御はキヤンセルされ
る。 Standby state subroutine S14 with S=0 (Figure 4)
Then, in S25 and S26, the control solenoid SL1 and the release solenoid SL2 are turned off, respectively, and the throttle control is canceled.
Ｓ＝１の制御状態サブルーチンS15（第５図）
では、S27にてまずリリースソレノイドSL２がオ
ンされ、S28にて現車速と記憶車速との差を０に
する方向にコントロールソレノイドSL１を制御
し、所定のデユーテイのタイミングによりコント
ロールソレノイドをオン・オフし、車輌を定速に
維持する。 Control state subroutine S15 for S=1 (Figure 5)
In S27, the release solenoid SL2 is first turned on, and in S28, the control solenoid SL1 is controlled in the direction of zeroing the difference between the current vehicle speed and the stored vehicle speed, and the control solenoid is turned on and off at a predetermined duty timing. , maintain the vehicle at a constant speed.
Ｓ＝２のセツト状態ルーチンS16（第５図）で
は、S50にてリリースソレノイドがオンされ、
S51でセツトスイツチSW４がオンか否か判断さ
れる。NOのときすなわち一旦オンされたセツト
スイツチが離されてオフになつていると、ステツ
プS52にてCPU内の記憶車速メモリに現車速が格
納され、S53で状態Ｓが１とされる。これにより
その制御状態ループにおける定速制御が可能とな
る。ステツプS51にて、YESすなわちセツトステ
ツプが押され続いているときは、ステツプA54に
進み、現車速が定速リミツト１（例えばば40Km／
ｈ）以下の場合は、ステツプA55に進み、コント
ロールソレノイドSL１をオフにする。次に、ス
テツプS56に進み、現車速が定速リミツト車速２
（例えば、45Km／ｈ）以下であるか判断される。
現車速が定速リミツト車速２より大の時はステツ
プS55に進み、コントロールソレノイドSL１をオ
フする。このため、車速は徐々に減少する。この
時、現車速が定速リミツト車速２に達する前にセ
ツトスイツチSW２がオフとなると、ステツプ
S51によりこれを判断して、ステツプS52，ステ
ツプS53と進んで、再び定速走行に戻る。次に、
現車速が定速リミツト車速２に達するまで減速が
続けられると、ステツプS54にてこれを判断し、
ステツプS57に進む。ステツプS57では、定速リ
ミツト車速２を記憶車速として記憶し、ステツプ
S58で、現車速とこの記憶車速との差が０になる
べく、所定のデユーテイでコントロールソレノイ
ドSL２をオン／オフ制御して、車輌を定速走行
制御する。 In the set state routine S16 (Fig. 5) with S=2, the release solenoid is turned on in S50,
In S51, it is determined whether or not the set switch SW4 is on. If NO, that is, if the set switch that was once turned on is released and turned off, the current vehicle speed is stored in the stored vehicle speed memory in the CPU in step S52, and the state S is set to 1 in S53. This enables constant speed control in the control state loop. At step S51, if YES, that is, the set step continues to be pressed, the process advances to step A54, and the current vehicle speed is set to constant speed limit 1 (for example, 40km/h).
h) In the following cases, proceed to step A55 and turn off control solenoid SL1. Next, the process advances to step S56, where the current vehicle speed is set to the constant speed limit vehicle speed 2.
(for example, 45 km/h) or less.
If the current vehicle speed is greater than the constant speed limit vehicle speed 2, the process advances to step S55 and the control solenoid SL1 is turned off. Therefore, the vehicle speed gradually decreases. At this time, if the set switch SW2 is turned off before the current vehicle speed reaches the constant speed limit vehicle speed 2, the step
This is determined in step S51, and the process proceeds to step S52 and step S53, and returns to constant speed running again. next,
When deceleration continues until the current vehicle speed reaches the constant speed limit vehicle speed 2, this is determined in step S54,
Proceed to step S57. In step S57, constant speed limit vehicle speed 2 is stored as a memorized vehicle speed, and step
At S58, the control solenoid SL2 is controlled on/off at a predetermined duty so that the difference between the current vehicle speed and the stored vehicle speed becomes zero, thereby controlling the vehicle to travel at a constant speed.
Ｓ＝３のリジユーム状態ルーチンS17（第７図）
では、S35にてリリースソレノイドSL２がオンさ
れた後、S36にてリジユームスイツチSW５がオ
ン（閉）が否かが判断される。NOのとき、すな
わち一旦オンされていリジユームスイツチが離さ
れてオフとなつていると、ステツプS37にて状態
Ｓが１とされ、その後制御状態ルーチンに入るこ
とができる。S36にてYESのとき、すなわちまだ
リジユームスイツチSW５が押され続けていると
き、S38でリジユームスイツチがオン（閉）され
てから0.5秒以上経過しているか否かが判断され
る。YESのときすなわちリジユームスイツチSW
５を0.5秒以上押し続けていると、コントロール
ソレノイドをオンにして加速制御がなされ、S40
で現車速が新たに記憶される。S38でNOとされ
たとき、すなわちリジユームスイツチSW５が押
されてから例えば0.5秒以内にスイツチが離され
ていると、S41にて前記憶車速を目標車速として
設定し、S42にてコントロールソレノイドを所定
デユーテイによりオン・オフ制御し、車輌を目標
車速に保持する。 Resume state routine S17 for S=3 (Figure 7)
After the release solenoid SL2 is turned on in S35, it is determined in S36 whether the volume switch SW5 is turned on (closed) or not. If NO, that is, if the resume switch is turned off after being turned on, the state S is set to 1 in step S37, and the control state routine can then be entered. When YES in S36, that is, when the resume switch SW5 is still being pressed, it is determined in S38 whether 0.5 seconds or more has elapsed since the resume switch was turned on (closed). When YES, resume switch SW
If you keep pressing 5 for more than 0.5 seconds, the control solenoid will be turned on and acceleration control will be performed and S40
The current vehicle speed is newly memorized. When S38 is NO, that is, the switch is released within, for example, 0.5 seconds after the resume switch SW5 is pressed, the previously memorized vehicle speed is set as the target vehicle speed in S41, and the control solenoid is activated in S42. On/off control is performed according to a predetermined duty to maintain the vehicle at the target vehicle speed.
CPU内で以上のプログラムが実行され、ブレ
ーキスイツチ、クラツチスイツチ、セツトスイツ
チ、リジユームスイツチの操作に応答して種々の
モードが達成される。 The above programs are executed within the CPU, and various modes are achieved in response to operation of the brake switch, clutch switch, set switch, and resume switch.
第１図は本発明の定速走行装置の電気回路の構
成を示すブロツク図であり、第２図は第１図の回
路で制御される負圧アクチユエータを示す縦断面
図であり、第３図〜第７図はCPU内で実行され
るプログラムの一例を示すフローチヤートであ
る。
１００……負圧アクチユエータ（アクチユエー
タ手段）、SW１……リードスイツチ（車速検出
手段）、SW２……クラツチスイツチ、SW３……
ブレーキスイツチ、SW４……セツトスイツチ
（スイツチ手段）、SW５……リジユームスイツ
チ、SL１……コントロールソレノイド、SL２…
…リリースソレノイド、CPU……マイクロコン
ピユータ（電子制御手段）、IC１……インターフ
エース回路、IC２……自己保持回路、DV１，
DV２……駆動回路。
FIG. 1 is a block diagram showing the configuration of the electric circuit of the constant speed traveling device of the present invention, FIG. 2 is a longitudinal sectional view showing a negative pressure actuator controlled by the circuit of FIG. 1, and FIG. ~FIG. 7 is a flowchart showing an example of a program executed within the CPU. 100... Negative pressure actuator (actuator means), SW1... Reed switch (vehicle speed detection means), SW2... Clutch switch, SW3...
Brake switch, SW4...Set switch (switch means), SW5...Resium switch, SL1...Control solenoid, SL2...
...Release solenoid, CPU...Microcomputer (electronic control means), IC1...Interface circuit, IC2...Self-holding circuit, DV1,
DV2...Drive circuit.
Claims (1)
チ手段の動作により所定の車速を記憶する手段
と、スロツトルの開閉を制御するアクチユエータ
手段と、前記記憶車速と現車速を比較し、該車速
差をなくする方向に前記アクチユエータ手段を制
御する電子制御手段とから成り、所定車速以下の
ときは前記制御を禁止するとともに、前記スイツ
チ手段が所定状態となると、スロツトルの開度を
小さくする方向に前アクチユエータ手段を附勢す
る定速走行装置において、前記所定車速とは別に
第２の所定車速を設定し、前記スイツチ手段の所
定状態が継続されて車速が第２の所定車速に達し
たときは該第２の所定車速で車速制御を行なう定
速走行装置。1 A vehicle speed detection means, a switch means, a means for storing a predetermined vehicle speed by the operation of the switch means, an actuator means for controlling opening and closing of the throttle, and a means for comparing the stored vehicle speed with the current vehicle speed and eliminating the vehicle speed difference. When the vehicle speed is below a predetermined speed, the control means is prohibited, and when the switch means is in a predetermined state, the front actuator means is configured to control the actuator means in a direction to reduce the opening degree of the throttle. In a constant speed traveling device that energizes a vehicle, a second predetermined vehicle speed is set separately from the predetermined vehicle speed, and when the predetermined state of the switch means continues and the vehicle speed reaches the second predetermined vehicle speed, the second predetermined vehicle speed is set. A constant speed traveling device that controls vehicle speed at a predetermined vehicle speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17554583A JPS6067232A (en) | 1983-09-22 | 1983-09-22 | Constant speed running device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17554583A JPS6067232A (en) | 1983-09-22 | 1983-09-22 | Constant speed running device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6067232A JPS6067232A (en) | 1985-04-17 |
| JPH0324374B2 true JPH0324374B2 (en) | 1991-04-03 |
Family
ID=15997947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17554583A Granted JPS6067232A (en) | 1983-09-22 | 1983-09-22 | Constant speed running device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6067232A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5153223B2 (en) | 2007-06-21 | 2013-02-27 | 株式会社ブンリ | Dirty liquid processing equipment |
-
1983
- 1983-09-22 JP JP17554583A patent/JPS6067232A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6067232A (en) | 1985-04-17 |
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