JP2021172222A - 操舵角検出装置 - Google Patents
操舵角検出装置 Download PDFInfo
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- JP2021172222A JP2021172222A JP2020077435A JP2020077435A JP2021172222A JP 2021172222 A JP2021172222 A JP 2021172222A JP 2020077435 A JP2020077435 A JP 2020077435A JP 2020077435 A JP2020077435 A JP 2020077435A JP 2021172222 A JP2021172222 A JP 2021172222A
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- steering angle
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- 238000001514 detection method Methods 0.000 claims abstract description 62
- 238000003745 diagnosis Methods 0.000 claims description 3
- 238000004092 self-diagnosis Methods 0.000 abstract description 26
- 238000000034 method Methods 0.000 description 16
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D15/00—Steering not otherwise provided for
- B62D15/02—Steering position indicators ; Steering position determination; Steering aids
- B62D15/021—Determination of steering angle
- B62D15/0215—Determination of steering angle by measuring on the steering column
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D15/00—Steering not otherwise provided for
- B62D15/02—Steering position indicators ; Steering position determination; Steering aids
- B62D15/021—Determination of steering angle
-
- 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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/02—Control of vehicle driving stability
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
- G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
- G01D5/24457—Failure detection
- G01D5/24461—Failure detection by redundancy or plausibility
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D15/00—Steering not otherwise provided for
- B62D15/02—Steering position indicators ; Steering position determination; Steering aids
- B62D15/021—Determination of steering angle
- B62D15/0245—Means or methods for determination of the central position of the steering system, e.g. straight ahead position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0457—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such
- B62D5/0481—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such monitoring the steering system, e.g. failures
- B62D5/049—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such monitoring the steering system, e.g. failures detecting sensor failures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/08—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for safeguarding the apparatus, e.g. against abnormal operation, against breakdown
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
- G01D5/245—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
- G01D5/2451—Incremental encoders
- G01D5/2452—Incremental encoders incorporating two or more tracks having an (n, n+1, ...) relationship
Abstract
Description
[第1実施形態]
図1〜図3に本発明の第1実施形態を示す。図1(a)の符号1は電動パワーステアリング(EPS;Electric Power Steering)装置の要部であり、ステアリングシャフト1aの基端に運転者が操作するステアリングホイール1bが固設されている。尚、図示しないがステアリングシャフト1aの先端に、ラック&ピニオン式のステアリングギヤ機構を有するステアリングギヤボックス、及び電動モータが連設されている。
更に、この各ギヤ1c,1dの外周にターゲット歯が形成されている。この各ターゲット歯の歯数は、本実施形態においてはプライマリギヤ1cの歯数をNとした場合、セカンダリギヤ1dの歯数が1枚少なく設定している(N−1)。
[第2実施形態]
図4に本発明の第2実施形態を示す。上述した第1実施形態では、操舵角センサ11に設けた自己診断部21で、各検出部11a,11bの失陥を監視し、失陥が検出された場合は、正常な検出部(11a或いは11b)側からの角度信号(θp或いはθs)に基づいて絶対舵角θfを求めるようにしている。
1a…ステアリングシャフト、
1b…ステアリングホイール、
1c…プライマリギヤ、
1d…セカンダリギヤ、
11…操舵角センサ、
11a…プライマリ検出部、
11b…セカンダリ検出部、
11c…絶対舵角演算部、
11d…インターフェース回路、
21,31a…自己診断部、
31…運転支援制御ユニット、
32…警報ユニット、
Fθp…プライマリ失陥判定フラグ、
Fθs…セカンダリ失陥判定フラグ、
θf…絶対舵角、
θp…プライマリ舵角、
θs…セカンダリ舵角
Claims (3)
- ステアリングシャフトの回転から相対舵角を異なる位相で検出する2つの相対舵角検出部、及び前記各相対舵角検出部で検出した前記相対舵角の位相差から絶対舵角を求める絶対舵角演算部を有する操舵角センサと、
前記絶対舵角演算部から絶対舵角を示す角度信号が出力されているか否かを調べる診断部と
を備える操舵角検出装置において、
前記診断部は、
最新の前記絶対舵角を保持する絶対舵角保持部と、
前記絶対舵角演算部から前記絶対舵角を示す角度信号が出力されていないと判定した場合、前記2つの相対舵角検出部の何れから前記相対舵角が出力されているかを調べる相対舵角出力検出部と、
前記相対舵角出力検出部で前記2つの相対舵角検出部の一方から前記相対舵角が出力されていると判定された場合、前記絶対舵角保持部に保持されている最新の前記絶対舵角に、出力されている該相対舵角を加算して最新の前記絶対舵角を更新する失陥時絶対舵角算出部と
を備えることを特徴とする操舵角検出装置。 - 前記診断部は、前記操舵角センサに設けられている
ことを特徴とする請求項1記載の操舵角検出装置。 - 前記診断部は、前記絶対舵角を利用して運転者の運転操作を支援する運転支援制御部に設けられていることを特徴とする請求項1記載の操舵角検出装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020077435A JP2021172222A (ja) | 2020-04-24 | 2020-04-24 | 操舵角検出装置 |
CN202110353141.1A CN113635970A (zh) | 2020-04-24 | 2021-04-01 | 转向角检测装置 |
DE102021108597.7A DE102021108597A1 (de) | 2020-04-24 | 2021-04-07 | Lenkwinkeldetektionsvorrichtung |
US17/236,019 US20210331743A1 (en) | 2020-04-24 | 2021-04-21 | Steering angle detecting apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020077435A JP2021172222A (ja) | 2020-04-24 | 2020-04-24 | 操舵角検出装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2021172222A true JP2021172222A (ja) | 2021-11-01 |
Family
ID=78221694
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020077435A Pending JP2021172222A (ja) | 2020-04-24 | 2020-04-24 | 操舵角検出装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20210331743A1 (ja) |
JP (1) | JP2021172222A (ja) |
CN (1) | CN113635970A (ja) |
DE (1) | DE102021108597A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT526540A1 (de) * | 2022-09-20 | 2024-04-15 | Melecs Ews Gmbh | Vorrichtung zur Messung eines absoluten Drehwinkels eines drehbar gelagerten Elements |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005195363A (ja) * | 2003-12-26 | 2005-07-21 | Koyo Seiko Co Ltd | 回転角度検出装置及びトルク検出装置 |
JP2006322794A (ja) | 2005-05-18 | 2006-11-30 | Hitachi Cable Ltd | 操舵角センサ |
JP5789911B2 (ja) * | 2009-10-06 | 2015-10-07 | 株式会社ジェイテクト | 回転角検出装置及び電動パワーステアリング装置 |
CN102859327B (zh) * | 2010-04-16 | 2015-03-11 | 株式会社捷太格特 | 旋转角检测装置 |
JP5969407B2 (ja) * | 2013-01-30 | 2016-08-17 | 日立オートモティブシステムズ株式会社 | 操舵角センサ |
CN107709947B (zh) * | 2015-06-26 | 2019-02-01 | 日本精工株式会社 | 相对角度检测装置、扭矩传感器、电动助力转向装置和车辆 |
JP2018020743A (ja) * | 2016-08-05 | 2018-02-08 | 株式会社ジェイテクト | 車両用操舵装置 |
WO2018055802A1 (ja) * | 2016-09-20 | 2018-03-29 | 日立オートモティブシステムズ株式会社 | センサ装置 |
-
2020
- 2020-04-24 JP JP2020077435A patent/JP2021172222A/ja active Pending
-
2021
- 2021-04-01 CN CN202110353141.1A patent/CN113635970A/zh active Pending
- 2021-04-07 DE DE102021108597.7A patent/DE102021108597A1/de active Pending
- 2021-04-21 US US17/236,019 patent/US20210331743A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE102021108597A1 (de) | 2021-10-28 |
US20210331743A1 (en) | 2021-10-28 |
CN113635970A (zh) | 2021-11-12 |
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