JPS6123840A - Throttle valve opening detector - Google Patents

Throttle valve opening detector

Info

Publication number
JPS6123840A
JPS6123840A JP14551984A JP14551984A JPS6123840A JP S6123840 A JPS6123840 A JP S6123840A JP 14551984 A JP14551984 A JP 14551984A JP 14551984 A JP14551984 A JP 14551984A JP S6123840 A JPS6123840 A JP S6123840A
Authority
JP
Japan
Prior art keywords
rotor
arm
throttle valve
bushing
valve opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14551984A
Other languages
Japanese (ja)
Inventor
Katsuhiko Shirai
白井 勝比古
Shiro Nagasawa
長沢 四郎
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.)
Denso Corp
Original Assignee
NipponDenso 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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP14551984A priority Critical patent/JPS6123840A/en
Publication of JPS6123840A publication Critical patent/JPS6123840A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D41/00Electrical control of supply of combustible mixture or its constituents
    • F02D41/24Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/26Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
    • F02D41/28Interface circuits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D2200/00Input parameters for engine control
    • F02D2200/02Input parameters for engine control the parameters being related to the engine
    • F02D2200/04Engine intake system parameters
    • F02D2200/0404Throttle position

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

PURPOSE:To reduce a degree of detection errors, by performing the support of a rotor by means of an arm inside a throttle valve opening detector at plural spots. CONSTITUTION:A rotor 2 is caulked to a base 1 together with a wave washer 2 by a bushing, and attached thereto free of rotation. An arm 3 is inserted into the bushing 6 and transmits motion of a throttle valve to the rotor 2. A connector 4 is caulked to the base 1, while a traveling contact 7 in this connector 4 slides on a cam groove 10 and comes on or off with a fixed contact 8. The rotor 2 is supported at two points of engaging parts 13 and 13' by the arm 3. With this constitution, from the arm 3, only such force as to rotate the rotor 2 operates thereon so that movements of the rotor 2 in a radial direction are brought to nothing, thus detecting accuracy is improved.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は車両のスロットルバルブの開度を検出するセン
サーの改良構造に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improved structure of a sensor for detecting the opening degree of a throttle valve of a vehicle.

〔従来技術〕[Prior art]

第3図および第4図は従来例を示す。スロットルバルブ
開度検出器(以下スロットルセンサという)のロータ2
は、スロットルボデーのシャフトと連動する1本のアー
ム3により、1箇所の係合点で回転させられる。
3 and 4 show conventional examples. Rotor 2 of the throttle valve opening detector (hereinafter referred to as throttle sensor)
is rotated at one engagement point by one arm 3 that interlocks with the shaft of the throttle body.

ロータ2とブッシングとの間には、クリアランスがある
為、ロータ2が回転方向を変える毎に、そのクリアラン
ス分、ロータ2がラジアル方向に移動して(第4図参照
)回転を始める。その為、ロータ2の回転方向により作
動角の検出位置が異なってくる。
Since there is a clearance between the rotor 2 and the bushing, each time the rotor 2 changes its rotational direction, the rotor 2 moves in the radial direction by the clearance (see FIG. 4) and starts rotating. Therefore, the operating angle detection position differs depending on the rotational direction of the rotor 2.

これを詳しく説明する。従来品では、アーム3から、ロ
ータ2に回転力を1箇所の係合(作用)点11から伝え
ている。ロータ2は、第4図のブッシング6との間ある
クリアランス12の分だけラジアル方向に、アームの係
合点11を支点として移動可能な為、ロータ2の回転方
向が変化するごとにブッシングに対するロータ2の位置
が変化し、これが検出角度精度を低下させていた。この
ため、つまり、作動角精度向上の為には、いつもロータ
2とブッシングとが正しく同心的に回転することが望ま
れるが、これを実現するためにはロー夕の回転穴(クリ
アランス12のところ)には厳しい寸法精度、真円度が
要求されている。
This will be explained in detail. In the conventional product, rotational force is transmitted from the arm 3 to the rotor 2 through one engagement (action) point 11. Since the rotor 2 is movable in the radial direction by the clearance 12 between it and the bushing 6 shown in FIG. The position of the sensor changes, which reduces the accuracy of the detected angle. For this reason, in order to improve the operating angle accuracy, it is desirable that the rotor 2 and the bushing always rotate correctly and concentrically, but in order to achieve this, it is necessary to ) requires strict dimensional accuracy and roundness.

〔本発明の目的〕[Object of the present invention]

本発明は上記の問題点に鑑み、ロータの回転方向によっ
て作動角に検出誤差が出るのを少なくし得るスロットル
センサーにすることを目的とする。
SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide a throttle sensor that can reduce detection errors in the operating angle depending on the rotational direction of the rotor.

〔本発明の構成〕[Configuration of the present invention]

このため本発明は、ロータ(2)の回動に応じて可動接
点(7)と固定接点(8)とをON又はOFFさせ、前
記ロータ(2)は該ロータ(2)に係合したアーム(3
)で駆動され、該アーム(3)がスロットルバルブと連
動するようにされたスロットルバルブ開度検出器におい
て、前記アーム(3)を複数本配置し複数本のアーム(
3)が前記ロータ(2)と複数箇所で係合するようにし
た。
For this reason, the present invention turns on or off the movable contact (7) and the fixed contact (8) according to the rotation of the rotor (2), and the rotor (2) is connected to the arm engaged with the rotor (2). (3
), and the arm (3) is interlocked with the throttle valve.
3) is engaged with the rotor (2) at multiple locations.

〔実施例〕〔Example〕

第1図および第2図において、このセンサーは、ベース
1、ロータ2、アーム3、コネクタ4、ウェーブワッシ
ャ5、ブッシング6、カバー9で構成されている。ロー
タ2は、ブッシング6で、ウェーブワッシャ2と共に、
ベース1にかしめられ、回転自在に組みつけである。
1 and 2, this sensor is composed of a base 1, a rotor 2, an arm 3, a connector 4, a wave washer 5, a bushing 6, and a cover 9. The rotor 2 has a bushing 6 and a wave washer 2.
It is caulked to the base 1 and assembled so that it can rotate freely.

アーム3は、ブッシング6内へ挿入され、ロータ2よス
ロットルバルブの動きを伝える。
The arm 3 is inserted into the bushing 6 and transmits the movement of the throttle valve to the rotor 2.

又、コネクタ4は、ベース1にかしめられ、)、コネク
タ4中の可動接点7は、ロータ2内のカム溝10をすべ
り固定接点8と、ON、OFFする構成になっている。
The connector 4 is caulked to the base 1), and the movable contact 7 in the connector 4 slides in a cam groove 10 in the rotor 2 to turn ON and OFF together with the fixed contact 8.

スロットルバルブの図示せぬシャフトとアーム3は、連
動し、バルブの開閉をセンサー内へ伝えている。
The shaft (not shown) of the throttle valve and the arm 3 work together to transmit the opening and closing of the valve into the sensor.

ロータ2の回転運動により、ロータ2内のカム溝10を
すべる可動接点7は、固定接点8と、ON、0FFL、
バルブの開度を検出することができる。
Due to the rotational movement of the rotor 2, the movable contact 7 that slides on the cam groove 10 in the rotor 2 is connected to the fixed contact 8, ON, 0FFL,
The opening degree of the valve can be detected.

そして、この実施例では、コネクタ4中のターミナルを
、ロータ2に対し、外側の方向へ移動させることにより
ロータ2をアーム3で2点支持(係合部13.13′)
でできる構造としている。
In this embodiment, the rotor 2 is supported at two points by the arm 3 (engaging portions 13, 13') by moving the terminals in the connector 4 in an outward direction with respect to the rotor 2.
The structure is made up of

2点支持により、アーム3からは、ロータ2を回転させ
ようとする力だけが作用するようになり、ロータ2のラ
ジアル方向への移動がなくなり、検出角度精度が向上す
る。また、ブッシング6とロータ2の嵌合部は、アーム
3による2点支持で、ロータ2の位置が決定される為寸
法精度及び真円度の向上は、不要になっている。
Due to the two-point support, only the force that attempts to rotate the rotor 2 acts from the arm 3, eliminating movement of the rotor 2 in the radial direction and improving the detection angle accuracy. Further, since the fitting portion between the bushing 6 and the rotor 2 is supported at two points by the arm 3, and the position of the rotor 2 is determined, there is no need to improve dimensional accuracy and roundness.

なお、上記一実施例では、ロータ2をアーム3で支持す
る位置は、直線上でロータ2の中心から、相対する位置
、すなわち、180°離れているがそれを135°、9
0′等離れている位置としても良い。
In the above embodiment, the position where the rotor 2 is supported by the arm 3 is a position opposite to the center of the rotor 2 on a straight line, that is, 180 degrees apart, but it is separated by 135 degrees and 9
It may also be located at a distance such as 0'.

又、アーム3によるロータ2の支持を、2点以上すなわ
ち、3点、4点としても良い。
Further, the rotor 2 may be supported by the arm 3 at two or more points, that is, at three or four points.

〔本発明の効果〕[Effects of the present invention]

以上述べたように本発明においては、スロットルバルブ
の開度の検出精度を向上させる為、検出器内のアーム(
3ンによるロータ(2)の支持を1点から2点以上とし
ているから、ロータが安定した回転位置を保つことがで
きる。
As described above, in the present invention, in order to improve the detection accuracy of the throttle valve opening, the arm (
Since the rotor (2) is supported by three pins from one point to two or more points, the rotor can maintain a stable rotational position.

又、必要ならばロータ(2)、ブッシング(6)の嵌合
部の加工寸法精度、真円精度を低下可能とすることがで
きる。
Further, if necessary, it is possible to reduce the machining dimensional accuracy and roundness accuracy of the fitting portion of the rotor (2) and the bushing (6).

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

第1図は本発明センサーの一実施例を示す一部断面平面
図、第2図は第1図のIF−If断面図、第3図は従来
例の一部断面平面図、第4図は従来例におけるロータと
ブッシングとの位置変化を説明する模式図である。 2・・・ロータ、7・・・可動接点、8・・・固定接点
、3・・・アーム。
Fig. 1 is a partially sectional plan view showing an embodiment of the sensor of the present invention, Fig. 2 is an IF-If sectional view of Fig. 1, Fig. 3 is a partially sectional plan view of the conventional example, and Fig. 4 is It is a schematic diagram explaining the positional change of the rotor and the bushing in a conventional example. 2... Rotor, 7... Movable contact, 8... Fixed contact, 3... Arm.

Claims (1)

【特許請求の範囲】[Claims] ロータ(2)の回動に応じて可動接点(7)と固定接点
(8)とをON又はOFFさせ、前記ロータ(2)は該
ロータ(2)に係合したアーム(3)で駆動され、該ア
ーム(3)がスロットルバルブと連動するようにされた
スロットルバルブ開度検出器において、前記アーム(3
)を複数本配置し、複数本のアーム(3)が前記ロータ
(2)と複数箇所で係合するようにしたことを特徴とす
るスロットルバルブ開度検出器。
The movable contact (7) and the fixed contact (8) are turned on or off according to the rotation of the rotor (2), and the rotor (2) is driven by the arm (3) engaged with the rotor (2). , in a throttle valve opening detector in which the arm (3) is configured to interlock with a throttle valve;
), and a plurality of arms (3) engage with the rotor (2) at a plurality of locations.
JP14551984A 1984-07-12 1984-07-12 Throttle valve opening detector Pending JPS6123840A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14551984A JPS6123840A (en) 1984-07-12 1984-07-12 Throttle valve opening detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14551984A JPS6123840A (en) 1984-07-12 1984-07-12 Throttle valve opening detector

Publications (1)

Publication Number Publication Date
JPS6123840A true JPS6123840A (en) 1986-02-01

Family

ID=15387103

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14551984A Pending JPS6123840A (en) 1984-07-12 1984-07-12 Throttle valve opening detector

Country Status (1)

Country Link
JP (1) JPS6123840A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS648919U (en) * 1987-07-03 1989-01-18

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS553066B2 (en) * 1977-08-08 1980-01-23

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS553066B2 (en) * 1977-08-08 1980-01-23

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS648919U (en) * 1987-07-03 1989-01-18
JPH0450902Y2 (en) * 1987-07-03 1992-12-01

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