JPS58170617A - Trouble discrimination device for stoppage position setting switch of car air conditioner actuator - Google Patents

Trouble discrimination device for stoppage position setting switch of car air conditioner actuator

Info

Publication number
JPS58170617A
JPS58170617A JP57053057A JP5305782A JPS58170617A JP S58170617 A JPS58170617 A JP S58170617A JP 57053057 A JP57053057 A JP 57053057A JP 5305782 A JP5305782 A JP 5305782A JP S58170617 A JPS58170617 A JP S58170617A
Authority
JP
Japan
Prior art keywords
contact piece
position setting
setting switch
motor
switch
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.)
Granted
Application number
JP57053057A
Other languages
Japanese (ja)
Other versions
JPS641324B2 (en
Inventor
Shuichi Tomari
泊　秀一
Shinji Sudo
須藤　信治
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.)
Bosch Corp
Original Assignee
Diesel Kiki Co 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 Diesel Kiki Co Ltd filed Critical Diesel Kiki Co Ltd
Priority to JP57053057A priority Critical patent/JPS58170617A/en
Publication of JPS58170617A publication Critical patent/JPS58170617A/en
Publication of JPS641324B2 publication Critical patent/JPS641324B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/38—Failure diagnosis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Control Of Position Or Direction (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

PURPOSE:To improve reliability of an air conditioner regarding its control by comparing the amount of voltage drop, due to electric current flowing through the captioned stoppage position setting switch, with the reference value and deciding a deteriorated condition of said switch and further having said condition reported. CONSTITUTION:When this contrivance is applied to a trouble discrimination device of a stoppage position setting switch 5 for a motor 1 which controls driving of an air mix door opening, a point of connection between resistance 3 connected to the stoppage position setting switch 5 consisting of a movable contact piece 5a and fixed contact pieces 5b-5d through diodes 6, 7, and a condenser 4 is connected to a nonreversal input terminal of a comparator 9 through a switch 8. Further, reference voltages V1, V2 (V1>V2) are applied to a reversal input terminal of the comparator 9 through a switch circuit 11. Said circuit 11 is switched at the time of regular and reverse rotations of the motor 1 by means of a central operation processing unit 10, and deteriorated condition of the switch 5 is decided on the basis of the output of the comparator 9 and said condition is indicated on an indicator 16.

Description

【発明の詳細な説明】 における停止位置設定スイソチの故障判別装置に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a failure determination device for a stop position setting switch.

一般に、車幅用空気調和装置はエバポレータからの冷風
とヒータコアからの暖風との混合割合を調整するエアミ
ックスドアを有して計り、このエアミックスドアの開度
はモータアクチュエータにより調整される。上記モータ
アクチュエータは、モータと、とのモータの回転数を減
速する出力ギヤと、モータの停止位置を設定する停止位
置設定スイッチ等から構成されており、上記モータに入
力を供給してモータを回転することにより出力ギヤが回
動し、この出力ギヤに連動するリンクを往復運動させて
、エアミックスドアの開度を制御する。上記停止位・置
設定スイッチは、上記出力ギヤに設けられた可動接片と
、この可動接片に対向するモータのケース側に設けられ
た固定接片とから構成されており、エアミックスドアが
回動し、例えば、その回動角度が最大値となった時に、
上記可動接片と固定後Ｈのスイッチ機構がオフとなり、
これＫよりモータの電源入力が遮断されるようにして、
モータを停止させる。また、エアミックスドアの回動角
度が最小値となると上記可動接片と固定接片とからなる
スイッチ機構がオフとなり、上記モータ電源入力を遮断
し、モータを停止する。Generally, a vehicle width air conditioner has an air mix door that adjusts the mixing ratio of cold air from an evaporator and warm air from a heater core, and the opening degree of this air mix door is adjusted by a motor actuator. The motor actuator is composed of a motor, an output gear that reduces the rotation speed of the motor, a stop position setting switch that sets the motor's stop position, etc., and supplies input to the motor to rotate the motor. This causes the output gear to rotate, causing a link linked to the output gear to reciprocate, thereby controlling the opening degree of the air mix door. The stop position/position setting switch is composed of a movable contact piece provided on the output gear and a fixed contact piece provided on the motor case side facing the movable contact piece. For example, when the rotation angle reaches its maximum value,
The switch mechanism of the above movable contact piece and H after being fixed is turned off.
The power input to the motor is cut off from K.
Stop the motor. Further, when the rotation angle of the air mix door reaches a minimum value, the switch mechanism consisting of the movable contact piece and the fixed contact piece is turned off, cutting off the motor power input and stopping the motor.

このような停止位置設定スイッチの動作にもとづきエア
ミックスドアがフルクーラモード又はフルヒータモード
となった時にモータ入力が遮断されるだめモータに過負
荷が加わるのを阻止でき、モータが焼損するのを防止す
ることが出来る。Based on the operation of the stop position setting switch, the motor input is cut off when the air mix door is in full cooler mode or full heater mode, which prevents overload from being applied to the motor and prevents the motor from burning out. It can be prevented.

しかしながら、従来の停止位置設定スイッチによれば、
長期間使用すると、可動接片と固定接片との接触面が次
第に摩耗してしまい或いはモータの大きな起動電流のた
めに両接片が劣化してしまい、内接ハ間の電気抵抗が大
きくなって導通不良状態が引き起こされてしまうことに
なる。このように電気抵抗が大きくなると位置設定スイ
ッチが異常に発熱して焼損事故が発生してしまう危険性
があり或いは、モータの入力が小さくなってモータのト
ルク不足を招来してしまい、このだめ空調制御全良好に
行うことが出来ないという欠点を有していた。However, according to the conventional stop position setting switch,
If used for a long period of time, the contact surface between the movable contact piece and the fixed contact piece will gradually wear out, or both contact pieces will deteriorate due to the large starting current of the motor, and the electrical resistance between the internal contacts will increase. This results in a poor conduction state. If the electrical resistance increases in this way, there is a risk that the position setting switch will become abnormally hot and cause a burnout accident, or the input to the motor will become small, resulting in a lack of motor torque, which will cause the air conditioner to overheat. It has the disadvantage that it cannot be controlled perfectly.

し、たがって、本発明の目的は上記停止位置設定スイッ
チにおける導通状態を検出して、導通状態が不良となっ
た場合、異常報知信号を出力するようにして上記欠点を
除去するものであり、以下実施例を用いて詳細に説明す
る。Therefore, an object of the present invention is to eliminate the above-mentioned drawbacks by detecting the conduction state of the stop position setting switch and outputting an abnormality notification signal when the conduction state becomes poor. This will be explained in detail below using examples.

第１図は本発明による車輛用空気調和装置、用アクチュ
エータにおける停止位置設定スイッチの故障判別装置の
一実施例を示す回路図であり、同図において１はアクチ
ュエータヲ禍成するモータであり、その一端は端子２ａ
に接続され、他端は抵抗３、コンデンサ４を介してアー
スされている。FIG. 1 is a circuit diagram showing an embodiment of a failure determination device for a stop position setting switch in an actuator for a vehicle air conditioner according to the present invention. One end is terminal 2a
The other end is grounded via a resistor 3 and a capacitor 4.

５は停止位置設定スイッチであり、これは、モータ１に
よって回動され、かつエアミックスドアの開度を制御す
る図示しない出力ギヤ側に設けられて出力ギヤの回転方
向に移動する可動接片５ａと、この可動液Ｈ’５ａの移
動軌跡上に対応するモータケース側に固定された長手状
の固定液ハ５ｂ、５Ｃ及びコモン接片５ｄとから構成さ
れる。各接ノ１５ｂ、５Ｃ１５ｄは可動接片の移動方向
にそって互いに平行とな暮ように延長されており、この
場合コモン接片５ｄの一端５ｄｌと固定液ハ５ｂの一端
５ｂ＋は位置が一致しているが、固定接片５ｂの他端５
Ｉ］２はコモン接片５ｄの他端５ａｚよシも短くなって
いる。又コモン接片５ｄの他端５ｄ２と固定接片５Ｃの
他端５Ｃ１は位置が一致しているが、固定液ハ５Ｃの一
端５ＣＩはコモン接Ｊ３−５ｄの一端５ａ＋よりも知く
なっている。したがって、コモン接片５ｄの一端５ｄｌ
側においては可動接片５ａはコモン接片５ｄと固定接片
５ｂとに接触し、コモン接片５ｄの他端５ａｚ（ｔｌｌ
においては、コモン接片５ｄと固定接）”ｊ’　５　Ｃ
とに接触し、その中間位置においてはコモン接片５ｄ、
固定接片５ｂ、固定接片５Ｃの三者に接触する。上記コ
モン接片５ｄは端１′−２ｂに接続され、又固定接片５
ｂはダイオード６を介して抵抗３に接続され、さらに、
上記抵抗：３はダイオード７を介して固定接片５Ｃに接
続されている。上記抵抗３とコンデンサ４との接続点は
スイッチ回路８を介してコンパレータ９の非反転入力側
に接続され、このコンパレータ９の出ＪＪ　＆：１車輛
車輛用調気調和装置御装置を構成するマイクロコンビー
ータからなる中火演算処理装置１０の入力ボートＢに入
力される。中央演算処理装置１０は図示しない温度設定
器から出力される設定温度何月、内気温度センサから出
力されゐ内気温度信号、外気温度センサから出力される
外気温度信号等ケ演算処理して、この演算の結果得られ
る総合信号にもとづきエアミックスドア駆動回路１８に
出カポ−）Ｄから出力信号を送出して、これにより駆動
回路１８は上記入力端子２ａ、２ｂの電圧を設定する。Reference numeral 5 denotes a stop position setting switch, which is rotated by the motor 1 and is provided on the side of an output gear (not shown) that controls the opening degree of the air mix door, and has a movable contact piece 5a that moves in the rotational direction of the output gear. , a longitudinal fixed liquid H'5b, 5C fixed to the motor case side corresponding to the moving locus of the movable liquid H'5a, and a common contact piece 5d. Each of the contacts 15b and 5C15d extends parallel to each other along the moving direction of the movable contact piece, and in this case, one end 5dl of the common contact piece 5d and one end 5b+ of the fixed liquid 5b are in the same position. However, the other end 5 of the fixed contact piece 5b
I]2 is also shorter than the other end 5az of the common contact piece 5d. Also, the other end 5d2 of the common contact piece 5d and the other end 5C1 of the fixed contact piece 5C are in the same position, but one end 5CI of the fixed liquid C 5C is closer than the one end 5a+ of the common contact J3-5d. . Therefore, one end 5dl of the common contact piece 5d
On the side, the movable contact piece 5a contacts the common contact piece 5d and the fixed contact piece 5b, and the other end 5az (tll
In this case, common contact piece 5d and fixed contact)"j' 5 C
and in the intermediate position, the common contact piece 5d,
It contacts the fixed contact piece 5b and the fixed contact piece 5C. The common contact piece 5d is connected to the ends 1'-2b, and the fixed contact piece 5d is connected to the ends 1'-2b.
b is connected to the resistor 3 via the diode 6, and furthermore,
The resistor 3 is connected to the fixed contact piece 5C via a diode 7. The connection point between the resistor 3 and the capacitor 4 is connected via a switch circuit 8 to the non-inverting input side of a comparator 9, and the output of the comparator 9 is connected to the microcontroller constituting the air conditioning control device for a vehicle. The signal is input to the input port B of the medium-heat processing unit 10 consisting of a combeater. The central processing unit 10 processes the set temperature outputted from a temperature setting device (not shown), the inside air temperature signal outputted from the inside air temperature sensor, the outside air temperature signal outputted from the outside air temperature sensor, etc., and performs this calculation. Based on the overall signal obtained as a result, an output signal is sent from the output capacitor (D) to the air mix door drive circuit 18, whereby the drive circuit 18 sets the voltages of the input terminals 2a and 2b.

ここで駆動回路１８の動作にもとづき入力端子２ａに正
の電圧Ｅを印加し、入力端子２ｂ’ｌアースに設定する
と、可動液ノ↑５ａがコモン接片５ｄの一端５ａｚ側に
位置しておれば、端子２ａ、モータ１ζダイオード７、
固定後ハ５Ｃ１可動接片５ａ、コモン接片５ｄ、入力端
子２ｂを介し電流Ｉ２が流れ、これによりモータ１が正
転される。モータ１が正転すると可動接片５ａが次第に
移動し、コモン接片５ｄの一端５ａ＋側に１で移動した
時に可動接片５ａが固定接片５Ｃからぬれるので、上記
電流工２が遮断され、モータが停止され、エアミックス
ドアの位置が、例えば、フルクーラモードに設定される
。又、このような状態で、入力端子２ｂに正の電圧Ｅを
印加し、入力端子２ａをアースに設定すると、入力端子
２ｂ。Here, when a positive voltage E is applied to the input terminal 2a based on the operation of the drive circuit 18 and the input terminal 2b'l is set to ground, the movable liquid nozzle ↑5a is located on the one end 5az side of the common contact piece 5d. For example, terminal 2a, motor 1ζ diode 7,
After fixing, a current I2 flows through the movable contact piece 5a of the fixed part 5C1, the common contact piece 5d, and the input terminal 2b, thereby causing the motor 1 to rotate in the normal direction. When the motor 1 rotates forward, the movable contact piece 5a gradually moves, and when the common contact piece 5d moves at 1 to the one end 5a+ side, the movable contact piece 5a gets wet from the fixed contact piece 5C, so the electric current worker 2 is cut off. The motor is stopped and the air mix door position is set to, for example, full cooler mode. Also, in this state, if a positive voltage E is applied to the input terminal 2b and the input terminal 2a is set to ground, the input terminal 2b.

コモン接片５ｄ、ｏｌ動接片５ａ、固定接片５ｂ、ダイ
オード６、モータ１、入力端子２ｄｉ介して電流１１が
流れ、これによりモータ１が逆転され、１１丁動接片５
ａが移動してコモン接片５ｄの他端５ｄ２側に移動する
と、可動接片５ａが固定接片５ｂから離れるので上記電
流ＩＩは遮断され、これによりエアミックスドアがフル
ヒータモードに設定さ扛る。」−記コンバレータ９の反
転入力側には切換スイッチ１１を介して抵抗１２と抵抗
１３との接続点より得られる電圧Ｖ１又は抵抗１４と抵
抗１５との接続点よシ得られる電圧ｖ２が供給される。A current 11 flows through the common contact piece 5d, the ol movable contact piece 5a, the fixed contact piece 5b, the diode 6, the motor 1, and the input terminal 2di.
When the common contact piece 5d moves to the other end 5d2 side, the movable contact piece 5a separates from the fixed contact piece 5b, and the current II is cut off, thereby setting the air mix door to the full heater mode. Ru. ”-The voltage V1 obtained from the connection point between the resistors 12 and 13 or the voltage V2 obtained from the connection point between the resistors 14 and 15 is supplied to the inverting input side of the converter 9 via the changeover switch 11. Ru.

尚、上記電圧Ｖ１　は第２図に示す如く、入力端子２ａ
又は２ｂに供給される電圧Ｅよシも若干小さくなるよう
に設定されておシ、電圧Ｖ２　　はアース′市圧よりも
若干大きくなるように設定されている。したがって、Ｖ
ｌ＞Ｖ２となっている。ここで、入力端子２ｂに正の電
圧Ｅを印加してモータｌを逆転するときに、中央演算処
理装置１ｏにょってスイッチ回路】１の可動接点１１ａ
を電圧ｖｉ側に切換え、電圧Ｖｔ　がコンパレータ９の
反転入力側に供給されるようにする。又入力端子２ａに
正の電圧Ｅを印加してモータ１が正転するときにスイッ
チ回路１１の可動接片１１ａを′電圧Ｖ２側に切換え、
電圧ｖ２がコンパレータ９の反転入力側に供給されるよ
うにする。尚、中央演算処理装置１０は、車輛用空気調
和装置を運転する直前の僅かな時間だけスイッチ回路８
をオンとして、こればよシ停止位置設定スイッチ５の故
障判別を行う。Note that the voltage V1 is applied to the input terminal 2a as shown in FIG.
Alternatively, the voltage E supplied to 2b is also set to be slightly smaller, and the voltage V2 is set to be slightly larger than the ground voltage. Therefore, V
l>V2. Here, when applying a positive voltage E to the input terminal 2b to reverse the motor l, the movable contact 11a of the switch circuit 1 is activated by the central processing unit 1o.
is switched to the voltage vi side so that the voltage Vt is supplied to the inverting input side of the comparator 9. Further, when a positive voltage E is applied to the input terminal 2a and the motor 1 rotates in the normal direction, the movable contact piece 11a of the switch circuit 11 is switched to the voltage V2 side.
The voltage v2 is supplied to the inverting input of the comparator 9. Note that the central processing unit 10 operates the switch circuit 8 only for a short period of time immediately before operating the vehicle air conditioner.
is turned on to determine if the stop position setting switch 5 is faulty.

以上の構成において、車輛用空気調和装置を運転する直
前においては中央演算処理装置１０の出力ポートＡから
出力される信号にもとづきスイッチ回路８がオンに設定
される。ここで中火演算処理装置１０はニアミックスド
ア駆動回路１８ｉ制脚し、まず入力端子２ｂに正の電圧
Ｅを供給し、入力端子２ａをアースに設定する。これに
よりモータ１に逆転方向の電流Ｌ！が流れる。このさき
、コンパレータ９の反転入力側には電圧Ｖ１が印加され
る。ここで、可動接片５ａとコモン接片５ｄ及び凸コ動
接片５ａと固定接片５Ｃとの間の接触抵抗が小さく正常
な状態となっておれば、抵抗３とダイオード６との接続
点に現われる電圧Ｑは電源電圧Ｅにほぼ等しくなってい
るだめ、Ｑ＞Ｖｌ　となりコンパレータ９の出力はＨレ
ベルとなって、この出力は中央演算処理装置１０の入力
ボートＢに供給される。一方、可動接８５ａとコモン接
片５ｄ又は可動接片５ａと固定接片５ｂとの間の接触抵
抗が大きくなっている場合には、上記電圧Ｑが電源電圧
Ｅ及び電圧Ｍｌ　　よシも小さくなるために、これによ
りコンパレーク９がＬレベルとなシ、中央演算処理装置
１０ではこのＬレベルとなった（ｉ’ｉ号にもとづいて
表示装置１６等に異常状態を表示させる。この表示にも
とづき車輛用空気調和装置の運転を取り止める等して停
止位置設定スイッチの取り替えを行うことが出来る。す
なわち、停電位置設定スイッチの異常発熱、モータのト
ルク不足等を未然に防止することが出来る。次に、モー
タ１の上Ｈ己逆転動作により可動接片５ａが移動してコ
モン接片５ｄの他端５ｄ２側に位置すると、今度は、入
力端子２ａに正の電圧を印加し、入力端子２ｂをアース
に設定してモータ１に正転方向の電流Ｉ２を供給する。In the above configuration, the switch circuit 8 is turned on based on the signal output from the output port A of the central processing unit 10 immediately before the vehicle air conditioner is operated. Here, the medium heat arithmetic processing device 10 controls the near-mix door drive circuit 18i, first supplies the positive voltage E to the input terminal 2b, and sets the input terminal 2a to ground. This causes the motor 1 to receive a current L in the reverse direction! flows. Before this, voltage V1 is applied to the inverting input side of comparator 9. Here, if the contact resistance between the movable contact piece 5a and the common contact piece 5d and between the convex movable contact piece 5a and the fixed contact piece 5C is small and in a normal state, the connection point between the resistor 3 and the diode 6 Since the voltage Q appearing at is almost equal to the power supply voltage E, Q>Vl, the output of the comparator 9 becomes H level, and this output is supplied to the input port B of the central processing unit 10. On the other hand, if the contact resistance between the movable contact 85a and the common contact 5d or between the movable contact 5a and the fixed contact 5b is large, the voltage Q becomes smaller than the power supply voltage E and the voltage Ml. As a result, the comparator 9 goes to L level, and the central processing unit 10 goes to this L level (i'i).Based on the display device 16 etc., the abnormal condition is displayed.Based on this display, the vehicle The stop position setting switch can be replaced by stopping the operation of the air conditioner.In other words, it is possible to prevent abnormal heat generation of the power outage position setting switch, insufficient torque of the motor, etc.Next, When the movable contact piece 5a moves due to the upper H self-reversing operation of the motor 1 and is positioned on the other end 5d2 side of the common contact piece 5d, a positive voltage is applied to the input terminal 2a, and the input terminal 2b is grounded. The current I2 is supplied to the motor 1 in the forward rotation direction.

この場合、可動接片５ａとコモン接片５ｄ又は可動接片
５ａと固定接片５Ｃとの間の接触抵抗が小さく正常とな
っておれば、電圧Ｑはほぼアース電圧に等しくなってお
り、この場合の電圧Ｑが電圧■２より小さくなっている
ため、コンパレータ９の出力はＬレベルとなる。In this case, if the contact resistance between the movable contact piece 5a and the common contact piece 5d or between the movable contact piece 5a and the fixed contact piece 5C is small and normal, the voltage Q is approximately equal to the ground voltage; Since the voltage Q in this case is smaller than the voltage (2), the output of the comparator 9 becomes L level.

中央演算処理装置１０ではモータ１が正転の時に１コン
パレータ９の出力がＬレベルの時を正常であると判断す
る。次に可動接片５ａとコモン接片５ｄ又は可動接片５
ａと固定接片５Ｃとの間の接触抵抗が大きくなっておれ
ば、上記電圧Ｑが太きいために、この時電圧Ｑが基準電
圧■２よりも大きくなり、コンパレータ９の出力がＨレ
ベルとなす中央演算処理装置１０では、これにもとづき
表示装置１６を駆動し異常表示を行なわせて、停止位置
設定スイッチ５が劣化していることを報知する。The central processing unit 10 determines that the motor 1 is normal when the output of the first comparator 9 is at L level when the motor 1 rotates normally. Next, the movable contact piece 5a and the common contact piece 5d or the movable contact piece 5
If the contact resistance between a and the fixed contact piece 5C is large, the voltage Q becomes larger than the reference voltage 2 at this time because the voltage Q is large, and the output of the comparator 9 becomes H level. Based on this, the central processing unit 10 drives the display device 16 to display an abnormality display to notify that the stop position setting switch 5 has deteriorated.

中・央演算処理装置１０ては停止位置設定スイッチ５が
劣化していると判定した場合には表示装置１６に異常表
示を行わせ、かつ、車輌用空気調和装置の運転を停止に
する。又停止位置設定スイッチ５が劣化していガいと判
定した場合には上記スイノブ回路８をオフとし車輛用空
気調和装置を始動することとなる。If the central processing unit 10 determines that the stop position setting switch 5 has deteriorated, it displays an abnormality display on the display device 16 and stops the operation of the vehicle air conditioner. If it is determined that the stop position setting switch 5 has deteriorated, the switch knob circuit 8 is turned off and the vehicle air conditioner is started.

以上説明したように、モータの電源回路に接続でれ、モ
ータに連動する可動接片と固定接片とからなる停止位置
設定スイッチを具備する車輛用空気調和装置において、
上記停止位置設定スイッチを流れる電流にもとづく電圧
降下分を基準値と比較し、停止位置設定スイッチの劣化
状態を判定しかつ報知するようにしたので、停止位置設
定スイッチの異常発熱、モータのトルク不足を未然に防
１１することが出来、車輛用空気調和装置の制御上の信
頼性を向上することが出来る。As explained above, in a vehicle air conditioner equipped with a stop position setting switch that is connected to the power supply circuit of the motor and is composed of a movable contact piece and a fixed contact piece that are interlocked with the motor,
The voltage drop based on the current flowing through the stop position setting switch is compared with a reference value, and the deterioration state of the stop position setting switch is determined and notified. 11 can be prevented from occurring, and the control reliability of the vehicle air conditioner can be improved.

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

第１図は本発明による車輛用空気調和装置用アクブユエ
ータにおける停止位置設定スイッチの故ｔ”＋′ＬＹ４
１別装置６の一実施例を示す回路図、第２図はその動作
を説明する特性図である。 １・・モータ、２ａ、２ｂ・・・入力端イ、５・・・停
止位置設定スイッチ、５ａ・・・可動接片、５ｄ・・・
コモン接片、５ｂ、５Ｃ・・・固定接片、６．７・・・
ダイオード、９・・・コンパレータ、１０・・・中央演
算処理装置、１１・・・エアミックスドア駆動回路。 特　許　出　願　人　　ヂーゼル機器株式会社代理人　
　弁理士　宮７　園　純　−Figure 1 shows the stop position setting switch t''+'LY4 in the actuator for a vehicle air conditioner according to the present invention.
FIG. 2 is a circuit diagram showing one embodiment of the separate device 6, and FIG. 2 is a characteristic diagram illustrating its operation. 1...Motor, 2a, 2b...Input end A, 5...Stop position setting switch, 5a...Movable contact piece, 5d...
Common contact piece, 5b, 5C...Fixed contact piece, 6.7...
Diode, 9... Comparator, 10... Central processing unit, 11... Air mix door drive circuit. Patent applicant: Agent of Diesel Kiki Co., Ltd.
Patent Attorney Miya 7 Jun Sono -

Claims (1)

【特許請求の範囲】[Claims] 車輛用空気調和装置を駆動するアクチュエータを構成す
るモータに連動してモータの入力を制御し七−夕の停止
位置を設定する停止位置設定スイッチを有する車輛用空
気調和装置用アクチーエータにおいて、上記停止位置設
定スイッチを介して流れる電流にもとづく電圧降下分と
基準値と葡比較する比較回路と、この比較回路の出力を
判別して異常報知信号を出力する制御装置とからなる車
輛用空気調和装置用アクチュエータにおける停止位置設
定スイッチの故障判別装置。The actuator for a vehicle air conditioner has a stop position setting switch that controls the input of the motor in conjunction with a motor constituting the actuator that drives the vehicle air conditioner and sets the Tanabata stop position. An actuator for a vehicle air conditioner, which consists of a comparison circuit that compares the voltage drop based on the current flowing through a setting switch with a reference value, and a control device that discriminates the output of this comparison circuit and outputs an abnormality alarm signal. A failure determination device for a stop position setting switch.
JP57053057A 1982-03-30 1982-03-30 Trouble discrimination device for stoppage position setting switch of car air conditioner actuator Granted JPS58170617A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57053057A JPS58170617A (en) 1982-03-30 1982-03-30 Trouble discrimination device for stoppage position setting switch of car air conditioner actuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57053057A JPS58170617A (en) 1982-03-30 1982-03-30 Trouble discrimination device for stoppage position setting switch of car air conditioner actuator

Publications (2)

Publication Number Publication Date
JPS58170617A true JPS58170617A (en) 1983-10-07
JPS641324B2 JPS641324B2 (en) 1989-01-11

Family

ID=12932217

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57053057A Granted JPS58170617A (en) 1982-03-30 1982-03-30 Trouble discrimination device for stoppage position setting switch of car air conditioner actuator

Country Status (1)

Country Link
JP (1) JPS58170617A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61192908U (en) * 1985-05-24 1986-12-01

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5690304A (en) * 1979-12-24 1981-07-22 Fujitsu Ltd Abnormal operation detecting system of servomechanism driving circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5690304A (en) * 1979-12-24 1981-07-22 Fujitsu Ltd Abnormal operation detecting system of servomechanism driving circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61192908U (en) * 1985-05-24 1986-12-01
JPH0234082Y2 (en) * 1985-05-24 1990-09-13

Also Published As

Publication number Publication date
JPS641324B2 (en) 1989-01-11

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