JPS6364340B2 - - Google Patents
Info
- Publication number
- JPS6364340B2 JPS6364340B2 JP17123880A JP17123880A JPS6364340B2 JP S6364340 B2 JPS6364340 B2 JP S6364340B2 JP 17123880 A JP17123880 A JP 17123880A JP 17123880 A JP17123880 A JP 17123880A JP S6364340 B2 JPS6364340 B2 JP S6364340B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- vehicle speed
- deceleration
- speed
- vehicle
- 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
- 230000005856 abnormality Effects 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000035939 shock Effects 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
- B60K31/18—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 a device to audibly, visibly, or otherwise signal the existence of unusual or unintended speed to the driver of the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D2066/001—Temperature
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
- Regulating Braking Force (AREA)
- Control Of Velocity Or Acceleration (AREA)
Description
【発明の詳細な説明】
本発明はリターダブレーキ自動制御装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic retarder brake control device.
ダンプトラツクのような高速移動体の安全確保
は異常が発生した場合には先ず車輛を停止させる
ことである。特に大型のダンプトラツクがリター
ダブレーキを使用しながら降坂走行するような場
合には尚更である。 To ensure the safety of high-speed moving vehicles such as dump trucks, the first step is to stop the vehicle when an abnormality occurs. This is especially true when a large dump truck is traveling downhill while using a retarder brake.
しかしながら、システムの異常（故障）を検出
した場合に車輛の停止のみを目的として急激なブ
レーキ動作を行なうと乗員に不快なシヨツクを与
えるばかりでなく、急な曲り角では車輛の転倒事
故を引き起すおそれがあり極めて危険である。 However, if a system abnormality (failure) is detected and sudden braking is applied for the sole purpose of stopping the vehicle, not only will it give an unpleasant shock to the occupants, but there is also the risk of the vehicle falling over at sharp turns. It is extremely dangerous.
本発明は上述の点に鑑みてなされたもので、異
常が発生した部分に応じてブレーキ力を与えて減
速制御を行ない、乗員に不快感を与えることな
く、且つ転倒事故を起すことのないようにしたリ
ターダブレーキ自動制御装置を提供するものであ
る。 The present invention has been made in view of the above-mentioned points, and it applies braking force and performs deceleration control according to the part where the abnormality has occurred, so as not to cause discomfort to the occupants and to prevent a fall accident. The present invention provides an automatic retarder brake control device.
以下本発明を添附図面の一実施例に基づいて詳
述する。 The present invention will be described in detail below based on one embodiment of the accompanying drawings.
第１図において速度センサ１はダンプトラツク
（図示せず）に配設されており当該ダンプトラツ
クの速度Ｖを検出し対応する周波数のパルス信号
Pv（以下速度信号という）を出力する。このよう
な速度センサは周知である。このパルス信号Pv
は車速制御回路２及び異常検出装置３の異常検出
器３０に加えられる。異常検出器３０は速度信号
Pvにより速度センサ１が正常であるか否かを判
別し、異常がある場合には切換信号Saを出力し
て切換器SW１に加える。この切換器SW１は信
号Saが加えられないときにはＡ側に切換えられ
ており、信号Saが加えられるとＢ側に切換えら
れる。異常検出器３１は速度センサ１以外の他の
センサ例えば油温センサ３２ａ、圧力センサ３２
ｂ、水温センサ３２ｃ等の各センサ出力信号et，
ep，ewを入力し、これらの信号により各センサが
正常であるか否かを判別し、異常がある場合には
切換信号Sbを出力する。この切換信号Sbは切換
器SW２及び減速度設定器３４に加えられる。油
温センサ３２ａはリターダブレーキ冷却油の温度
を検出して対応する温度信号etを出力する。圧力
センサ３２ｂはリターダブレーキ駆動装置４の例
えば空圧サーボ弁（図示せず）の圧力を検出して
対応する圧力信号epを出力する。また、水温セン
サ３２ｃはラジエタの水温を検出して対応する温
度信号ewを出力する。切換器SW２は切換信号Sb
が加えられないときにはＣ側に切換えられてお
り、信号Sbが加えられるとＤ側に切換えられる。
車速設定器３３はダンプトラツクの車速を設定す
るためのもので、設定車速に応じた設定車速信号
Vcを出力して切換器SW２のＣ側及び減速度設定
器３４に加える。 In FIG. 1, a speed sensor 1 is disposed on a dump truck (not shown), detects the speed V of the dump truck, and sends a pulse signal of a corresponding frequency.
Outputs Pv (hereinafter referred to as speed signal). Such speed sensors are well known. This pulse signal Pv
is applied to the vehicle speed control circuit 2 and the abnormality detector 30 of the abnormality detection device 3. The abnormality detector 30 is a speed signal
It is determined whether the speed sensor 1 is normal or not based on Pv, and if there is an abnormality, a switching signal Sa is outputted and applied to the switching device SW1. This switch SW1 is switched to the A side when the signal Sa is not applied, and is switched to the B side when the signal Sa is applied. The abnormality detector 31 includes sensors other than the speed sensor 1, such as an oil temperature sensor 32a and a pressure sensor 32.
b, each sensor output signal e t of the water temperature sensor 32c, etc.
e p and e w are input, and based on these signals it is determined whether each sensor is normal or not. If there is an abnormality, a switching signal Sb is output. This switching signal Sb is applied to the switching device SW2 and the deceleration setting device 34. The oil temperature sensor 32a detects the temperature of the retarder brake cooling oil and outputs a corresponding temperature signal e t . The pressure sensor 32b detects the pressure of, for example, a pneumatic servo valve (not shown) of the retarder brake drive device 4 and outputs a corresponding pressure signal e p . Further, the water temperature sensor 32c detects the water temperature of the radiator and outputs a corresponding temperature signal e w . Switch SW2 is switching signal Sb
When the signal Sb is not applied, it is switched to the C side, and when the signal Sb is applied, it is switched to the D side.
The vehicle speed setting device 33 is for setting the vehicle speed of the dump truck, and outputs a set vehicle speed signal corresponding to the set vehicle speed.
Vc is output and applied to the C side of the switch SW2 and the deceleration setting device 34.
ところで、設定車速の時間的にゆつくり変化さ
せることにより、車輛の加減速の制御が可能であ
ることは知られている。そこで、設定車速を時間
経過と共に下げることにより車輛を停止させるこ
とができる。例えば減速度を−0.2Gとした場合
には
0.2×9.8（ｍ／s2）＝1.96（ｍ／s2）
であり、これは約７（Km／ｈ）で減速することに
より達成することができる。 By the way, it is known that it is possible to control acceleration and deceleration of a vehicle by gradually changing the set vehicle speed over time. Therefore, the vehicle can be stopped by lowering the set vehicle speed over time. For example, if the deceleration is -0.2G, 0.2 x 9.8 (m/s 2 ) = 1.96 (m/s 2 ), which can be achieved by decelerating at approximately 7 (Km/h). can.
減速度設定器３４は上述の考えに基づいて構成
されており、所定の減速度例えば−0.2G程度の
減速度を保持しつつ車輛を停止させるためのもの
で、切換信号Sbが入力されたとき、当該時点に
おける設定速度Ｖを初期値とし、前記−0.2Gに
相当する減速信号Vdc（第２図）を出力して切換
器SW２のＤ側に加える。 The deceleration setter 34 is configured based on the above-mentioned idea, and is for stopping the vehicle while maintaining a predetermined deceleration, for example, about -0.2G, and when the switching signal Sb is input. , the set speed V at that point in time is set as an initial value, and a deceleration signal Vdc (FIG. 2) corresponding to the above-mentioned -0.2G is output and applied to the D side of the switch SW2.
また、速度センサ１が故障した場合には前述し
たような減速制御が不能となる。そこで、かかる
異常が発生した場合にはブレーキ操作力をゆつく
りと増加して初期減速度を抑えて車輛を停止させ
るようにする。 Further, if the speed sensor 1 fails, the deceleration control as described above becomes impossible. Therefore, when such an abnormality occurs, the brake operating force is slowly increased to suppress the initial deceleration and stop the vehicle.
ブレーキ設定器３５は上述の考えに基づいて構
成されており、切換信号Saが加えられたとき、
当該時点における車速により決定されるブレーキ
力Ｆを初期値として所定の減速信号Vdf（第３図）
を出力して切換器SW１のＢ側に加える。また、
切換器SW１のＡ側には車速制御回路２からの車
速制御信号Ｖが入力される。 The brake setting device 35 is configured based on the above idea, and when the switching signal Sa is applied,
A predetermined deceleration signal Vdf is set with the initial value of the braking force F determined by the vehicle speed at that point in time (Fig. 3).
is output and applied to the B side of switch SW1. Also,
A vehicle speed control signal V from the vehicle speed control circuit 2 is input to the A side of the switch SW1.
さて、速度センサ１、油温センサ３２ａ、圧力
センサ３２ｂ及び水温センサ３２ｃのいずれも正
常である場合には、切換器SW１，SW２は夫々
Ａ側、Ｃ側に切換えられており、車速設定器３３
の設定車速信号Vcが切換器SW２を通して車速制
御回路２に入力される。車速制御回路２は車速セ
ンサ１からの速度信号Pvと設定車速信号Vcに応
じた車速制御信号Ｖを出力する。この制御信号Ｖ
は切換器SW１を通して出力されブレーキ駆動装
置４に加えられる。このブレーキ駆動装置４は入
力信号Ｖに応じてブレーキを駆動して車速制御を
行なう。 Now, when the speed sensor 1, the oil temperature sensor 32a, the pressure sensor 32b, and the water temperature sensor 32c are all normal, the switches SW1 and SW2 are switched to the A side and the C side, respectively, and the vehicle speed setting device 33
The set vehicle speed signal Vc is input to the vehicle speed control circuit 2 through the switch SW2. The vehicle speed control circuit 2 outputs a vehicle speed control signal V according to the speed signal Pv from the vehicle speed sensor 1 and the set vehicle speed signal Vc. This control signal V
is outputted through the switch SW1 and applied to the brake drive device 4. This brake drive device 4 drives the brakes according to the input signal V to control the vehicle speed.
いま、走行中に速度センサ１が何らかの原因に
より故障したとする。異常検出器３０は速度セン
サ１の故障を検出すると切換信号Saを出力して
切換器SW１をＢ側に切換える。また、ブレーキ
力設定器３５は切換信号Saが加えられると前述
したようにこのときの車速制御信号Ｖにより決定
されるブレーキ力Fa（第３図）を初期値とした減
速信号Vdfを出力する。この減速信号Vdfは車速
制御信号Ｖに替えて切換器SW１から出力され
る。ブレーキ駆動装置４は減速度信号Vdfに応じ
てブレーキ力を徐々に増加させ、車輛を徐々に停
止させる。 Now, suppose that the speed sensor 1 breaks down for some reason while the vehicle is running. When the abnormality detector 30 detects a failure in the speed sensor 1, it outputs a switching signal Sa to switch the switch SW1 to the B side. Furthermore, when the switching signal Sa is applied, the brake force setting device 35 outputs a deceleration signal Vdf whose initial value is the brake force Fa (FIG. 3) determined by the vehicle speed control signal V at this time, as described above. This deceleration signal Vdf is output from the switch SW1 in place of the vehicle speed control signal V. The brake drive device 4 gradually increases the braking force in response to the deceleration signal Vdf to gradually stop the vehicle.
また、走行中に速度センサ１以外のセンサ例え
ば油温センサ３２ａが故障したとする。異常検出
器３１はこの油温センサ３２ａの故障を検出する
と切換信号Sbを出力して切換器SW２をＤ側に切
換える。減速度設定器３４は信号Sbが加えられ
ると、このときの設定車速度Vcを初期値とした
減速信号Vdc（第２図）を出力する。この減速信
号Vdcは切換器SW２を通して車速制御回路２に
加えられる。車速制御回路２はこの減速信号Vdc
と速度信号Pvとにより、減速信号Vdcに応じた
車速制御信号V′を出力する。この制御信号V′は
切換器SW１を通して出力される。ブレーキ駆動
装置４はこの制御信号V′に応じて所定の減速度
を保持しつつ減速制御を行ない、車輛を停止させ
る。 Further, suppose that a sensor other than the speed sensor 1, for example, the oil temperature sensor 32a, malfunctions while the vehicle is running. When the abnormality detector 31 detects a failure of the oil temperature sensor 32a, it outputs a switching signal Sb and switches the switch SW2 to the D side. When the signal Sb is applied to the deceleration setter 34, the deceleration setting device 34 outputs a deceleration signal Vdc (FIG. 2) whose initial value is the set vehicle speed Vc at this time. This deceleration signal Vdc is applied to the vehicle speed control circuit 2 through the switch SW2. Vehicle speed control circuit 2 uses this deceleration signal Vdc
and the speed signal Pv, a vehicle speed control signal V' corresponding to the deceleration signal Vdc is output. This control signal V' is output through the switch SW1. The brake drive device 4 performs deceleration control while maintaining a predetermined deceleration in response to this control signal V', thereby stopping the vehicle.
以上説明したように本発明によれば、速度計測
部の異常とその他の計測部の異常とに分け、速度
計測部の異常時にはリターダブレーキを徐々に増
加して車輛を停止させ、その他の計測部の異常時
には一定の減速度制御を行なうことにより、減速
の際の不快感を取り除くことができ、且つ転倒と
いう最悪の事態を防ぐことができる等の利点があ
る。 As explained above, according to the present invention, abnormalities in the speed measuring section and abnormalities in other measuring sections are classified, and when an abnormality in the speed measuring section occurs, the retarder brake is gradually increased to stop the vehicle, and the other measuring sections are stopped. By performing constant deceleration control when an abnormality occurs, it is possible to eliminate discomfort during deceleration, and there are advantages such as being able to prevent the worst case of falling.
第１図は本発明に係るリターダブレーキ自動制
御装置の一実施例を示すブロツク図、第２図及び
第３図は第１図に示す減速度設定器３４、ブレー
キ力設定器３５の出力信号の一実施例を示す図で
ある。
１……速度センサ、２……車速制御回路、３…
…異常検出装置、４……ブレーキ駆動装置、３
０，３１……異常検出器、３２ａ〜３２ｃ……セ
ンサ、３３……車速設定器、３４……減速度設定
器、３５……ブレーキ力設定器、SW１，SW２
……切換器。
FIG. 1 is a block diagram showing an embodiment of the retarder brake automatic control device according to the present invention, and FIGS. 2 and 3 show the output signals of the deceleration setting device 34 and the brake force setting device 35 shown in FIG. It is a figure showing one example. 1...Speed sensor, 2...Vehicle speed control circuit, 3...
... Abnormality detection device, 4 ... Brake drive device, 3
0, 31... Abnormality detector, 32a to 32c... Sensor, 33... Vehicle speed setting device, 34... Deceleration setting device, 35... Brake force setting device, SW1, SW2
...Switcher.
Claims (1)
させるリターダブレーキ自動制御装置において、
車速センサとその他のセンサの異常を夫々検出す
る第１、第２の異常検出器と、第１の異常検出器
出力が加えられたときにはブレーキ力を増加させ
る指令を、第２の異常検出器出力が加えられたと
きには一定の減速度指令を夫々設定車速指令に替
えて出力する第１、第２の減速度設定手段とを具
えたことを特徴とするリターダブレーキ自動制御
装置。1. In an automatic retarder brake control device that drives a retarder brake to descend a slope at a set vehicle speed,
First and second abnormality detectors detect abnormalities in the vehicle speed sensor and other sensors, respectively, and the second abnormality detector outputs a command to increase the braking force when the first abnormality detector output is applied. 1. An automatic retarder brake control device comprising: first and second deceleration setting means that respectively output a constant deceleration command in place of a set vehicle speed command when a set vehicle speed command is applied.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17123880A JPS5794815A (en) | 1980-12-04 | 1980-12-04 | Automatic controller of retarder brake |
| US06/326,370 US4485444A (en) | 1980-12-04 | 1981-12-01 | Retarder brake automatic control system |
| DE19813147598 DE3147598A1 (en) | 1980-12-04 | 1981-12-02 | "AUTHORIZED CONTROL DEVICE FOR THE BRAKE SYSTEM OF A VEHICLE" |
| CA000391355A CA1175932A (en) | 1980-12-04 | 1981-12-02 | Retarder brake automatic control system |
| SE8107223A SE449836B (en) | 1980-12-04 | 1981-12-03 | AUTOMATIC BRAKE CONTROL DEVICE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17123880A JPS5794815A (en) | 1980-12-04 | 1980-12-04 | Automatic controller of retarder brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5794815A JPS5794815A (en) | 1982-06-12 |
| JPS6364340B2 true JPS6364340B2 (en) | 1988-12-12 |
Family
ID=15919598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17123880A Granted JPS5794815A (en) | 1980-12-04 | 1980-12-04 | Automatic controller of retarder brake |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5794815A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3876605B2 (en) * | 2000-10-06 | 2007-02-07 | 株式会社豊田自動織機 | Brake control device for industrial vehicles |
-
1980
- 1980-12-04 JP JP17123880A patent/JPS5794815A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5794815A (en) | 1982-06-12 |
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