SE502358C2 - Steering angle sensor for a motor vehicle - Google Patents

Steering angle sensor for a motor vehicle

Info

Publication number
SE502358C2
SE502358C2 SE9303127A SE9303127A SE502358C2 SE 502358 C2 SE502358 C2 SE 502358C2 SE 9303127 A SE9303127 A SE 9303127A SE 9303127 A SE9303127 A SE 9303127A SE 502358 C2 SE502358 C2 SE 502358C2
Authority
SE
Sweden
Prior art keywords
steering angle
value
angle sensor
parameter
sensor according
Prior art date
Application number
SE9303127A
Other languages
Swedish (sv)
Other versions
SE9303127L (en
SE9303127D0 (en
Inventor
Mats Hugo Rolf Dahlgren
Original Assignee
Nira Automotive Ab
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 Nira Automotive Ab filed Critical Nira Automotive Ab
Priority to SE9303127A priority Critical patent/SE502358C2/en
Publication of SE9303127D0 publication Critical patent/SE9303127D0/en
Priority to PCT/SE1994/000884 priority patent/WO1995008751A1/en
Priority to JP7509724A priority patent/JPH09503293A/en
Publication of SE9303127L publication Critical patent/SE9303127L/en
Publication of SE502358C2 publication Critical patent/SE502358C2/en

Links

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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
    • 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
    • G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
    • G01D18/002—Automatic recalibration
    • G01D18/006—Intermittent recalibration
    • 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
    • G01D5/147—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 movement of a third element, the position of Hall device and the source of magnetic field being fixed in respect to each other
    • 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
    • G01D5/20—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 by varying inductance, e.g. by a movable armature
    • G01D5/2006—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 by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils
    • G01D5/2013—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 by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils by a movable ferromagnetic element, e.g. a core
    • 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
    • G01D2205/00—Indexing scheme relating to details of means for transferring or converting the output of a sensing member
    • G01D2205/70—Position sensors comprising a moving target with particular shapes, e.g. of soft magnetic targets
    • G01D2205/77—Specific profiles
    • G01D2205/776—Cam-shaped profiles

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)

Abstract

A steering angle transducer (10) for a motor vehicle is arranged to generate an electric signal having a parameter u( alpha ) varying in dependence upon the steering angle alpha of the vehicle, said parameter having an extreme value U for a steering angle of 0 DEG and varying in dependence upon the steering angle alpha according to a curve of its value as a function of the steering angle having a considerable inclination within portions thereof located adjacent to and on opposite sides of the steering angle value 0 DEG .

Description

502 558 Vid ett dylikt utförande av givaren kommer nämnda parameter att anta ett och samma värde för varje par av inbördes lika stora styrvinklar med motsatta riktningar. In such a design of the sensor, said parameter will assume one and the same value for each pair of mutually equal control angles with opposite directions.

Styrvinkelgivaren enligt uppfinningen kan även ut- nyttjas för en detektering av ett eller flera par av förut- bestämda, från styrvinkeln 0° avvikande styrvinklar med inbördes motsatta riktningar. Om nämnda parameter hos den av givaren alstrade signalen på tidigare nämnt sätt varierar i beroende av styrvinkeln enligt en kring styrvinkeln O° symmetrisk kurva, kommer varje par av detekterbara styr- vinklar att utgöras av två inbördes lika stora styrvinklar med motsatta riktningar. Emellertid kan det i stället vara önskvärt att kunna detektera ett par inbördes olika stora styrvinklar med inbördes motsatta riktningar. För att möjlig- göra en dylik detektering kan givaren utformas så, att nämnda parameter kommer att variera i beroende av styrvinkeln enligt en kring styrvinkelvärdet 0° assymetrisk kurva över dess värde som funktion av styrvinkeln.The control angle sensor according to the invention can also be used for a detection of one or more pairs of predetermined control angles deviating from the control angle 0 ° with mutually opposite directions. If said parameter of the signal generated by the sensor varies in the previously mentioned manner depending on the control angle according to a symmetrical curve around the control angle 0, each pair of detectable control angles will consist of two mutually equal control angles with opposite directions. However, it may instead be desirable to be able to detect a pair of mutually different control angles with mutually opposite directions. To enable such a detection, the sensor can be designed so that said parameter will vary depending on the steering angle according to an asymmetrical curve around the steering angle value 0 ° over its value as a function of the steering angle.

Uppfinningen beskrivs nedan ytterligare under hänvis- ning till bifogade ritning, på vilken fig. 1 visar en schematisk vy av en styrvinkelgivare enligt en första, enbart såsom exempel vald utföringsform av uppfinningen, fig. 2 en schematisk vy av en styrvinkelgivare enligt en andra, likaledes enbart såsom exempel vald utföringsform av uppfinningen, fig. 3 ett diagram, som i kurvform illustrerar en av givaren enligt fig. 1 alstrad elektrisk signal som funk- tion av styrvinkeln, och fig. 4 och 5 diagram, som i kurvform illustrerar medelst modifierade styrvinkelgivare alstrade utsignaler som funktion av styrvinkeln.The invention is further described below with reference to the accompanying drawing, in which Fig. 1 shows a schematic view of a control angle sensor according to a first, exemplary embodiment of the invention, Fig. 2 a schematic view of a control angle sensor according to a second, likewise only as an exemplary embodiment of the invention, Fig. 3 is a diagram illustrating in curve form an electrical signal generated by the sensor according to Fig. 1 as a function of the control angle, and Figs. 4 and 5 are diagrams illustrating in curve form by means of modified control angle sensors generated output signals as a function of the control angle.

Den i fig. 1 visade, generellt med 10 betecknade styrvinkelgivaren innefattar ett halleffektelement 11 och en permanentmagnet 12, som båda är monterade i stationära lägen intill varandra i ett motorfordon, t.ex. en bil eller en motorcykel, samt en av magnetiskt material bestående 502 358 rörlig kam 13. Kammen 13 kan såsom antytts med dubbelpilen A vara anordnad vridbar kring en vridningsaxel 14 och för- bunden med fordonets styrsystem på sådant sätt att den vid manövrering av detta kommer att vridas kring nämnda axel.The control angle sensor shown in Fig. 1, generally indicated by 10, comprises a hall effect element 11 and a permanent magnet 12, both of which are mounted in stationary positions next to each other in a motor vehicle, e.g. a car or a motorcycle, and a movable cam 13 consisting of magnetic material 13. The cam 13 may, as indicated by the double arrow A, be arranged rotatable about an axis of rotation 14 and connected to the control system of the vehicle in such a way that when maneuvering it to be rotated about said axis.

Alternativt kan kammen 13 i stället vara förbunden med for- donets styrsystem på sådant sätt, att den vid manövrering av detta kommer att förskjutas rätlinjigt på med den punkt- streckade dubbelpilen B visat sätt.Alternatively, the cam 13 may instead be connected to the control system of the vehicle in such a way that when maneuvering it will be displaced rectilinearly in the manner shown by the dotted double arrow B.

Vidare innefattar styrvinkelgivaren 10 även en till halleffektelementet 11 ansluten elektrisk kretsenhet 15.Furthermore, the control angle sensor 10 also comprises an electrical circuit unit 15 connected to the hall effect element 11.

Denna bildar en kombinerad strömförsörjningsenhet och ut- signalförstärkare för halleffektelementet 11 och uppvisar en utgång 16, via vilken den kan avge en utsignal, som är proportionell mot en av halleffektelementet 11 alstrad spän- ning.This forms a combined power supply unit and output signal amplifier for the hall effect element 11 and has an output 16, via which it can emit an output signal which is proportional to a voltage generated by the hall effect element 11.

Kammen 13 har formen av en cirkulär skiva, som är försedd med ett utskjutande nockparti 13'. Då styrsystemet befinner sig i ett tillstånd motsvarande styrvinkeln 0°, dvs. då fordonet framföres i riktning rakt framåt, är nock- partiet 13' beläget centralt mitt framför halleffektele- mentet 11 och permanentmagneten 12. Det genom halleffekt- elementet 11 passerande magnetiska flödet från permanent- magneten 12 kommer att anta ett maximalt värde då kammen 13 befinner sig i detta läge och avtar successivt vid vridning av kammen 13 i endera riktningen från nämnda läge. Detta medför att den vid utgången 16 avgivna utsignalen U från givaren 10 kommer att variera i beroende av styrvinkelncfi enligt en kurva av i fig. 3 visat slag. Utsignalen U upp- visar sålunda ett maximivärde för styrvinkeln O° och avtar successivt då styrvinkelnzâfi ändras i endera riktningen från värdet O°. Härigenom är givaren 10 väl lämpad att ut- nyttjas för detektering av styrvinkeln O°.The cam 13 is in the form of a circular disc which is provided with a projecting cam portion 13 '. When the control system is in a state corresponding to the control angle 0 °, ie. when the vehicle is driven in a straight forward direction, the cam portion 13 'is located centrally in front of the hall effect element 11 and the permanent magnet 12. The magnetic flux passing through the hall effect element 11 from the permanent magnet 12 will assume a maximum value when the cam 13 is located in this position and gradually decreases when the cam 13 is rotated in either direction from said position. This means that the output signal U from the sensor 10 emitted at the output 16 will vary depending on the control angle fi according to a curve of the type shown in Fig. 3. The output signal U thus shows a maximum value for the control angle O ° and gradually decreases when the control angle z â fi changes in either direction from the value O °. As a result, the sensor 10 is well suited to be used for detecting the control angle 0 °.

Eftersom fordonet under färd med nödvändighet ofta framföres i riktning rakt fram, kan givaren lätt kalibreras genom bestämning av det aktuella toppvärdet på utsignalen U, vilket kan variera med tiden, t.ex. på grund av drift i elektriska kretsar eller på grund av inverkan av tempera- 502 558 turvariationer på givaren. Omedelbart efter start av for- donet kan denna toppvärdesbestämning grundas på en enda eller några få toppvärdesmätningar, medan den eljest lämp- ligen kan baseras på ett flertal upprepade mätningar av toppvärdet under en längre tidsperiod.Since the vehicle while driving is often driven in the direction straight ahead, the sensor can easily be calibrated by determining the current peak value of the output signal U, which can vary with time, e.g. due to operation in electrical circuits or due to the effect of temperature variations on the sensor. Immediately after starting the vehicle, this peak value determination can be based on a single or a few peak value measurements, while it can otherwise suitably be based on a number of repeated measurements of the peak value over a longer period of time.

För att möjliggöra en detektering av styrvinkeln 0° med förhöjd noggrannhet kan kammens 13 nockparti 13' ut- formas betydligt smalare och spetsigare än vad som visats i fig. 1, så att utsignalen U kommer att variera i beroende av styrvinkeln-ofi enligt en kurva av i fig. 4 visat slag, vid vilken nära och på var sin sida om styrvinkeln 0° be- lägna delar av kurvan uppvisar en kraftig lutning.To enable a detection of the control angle 0 ° with increased accuracy, the cam portion 13 'of the cam 13 can be formed much narrower and sharper than that shown in Fig. 1, so that the output signal U will vary depending on the control angle-fi according to a curve. of the type shown in Fig. 4, in which parts of the curve located near and on each side of the control angle 0 ° show a steep slope.

Styrvinkelgivaren 10 kan även utnyttjas för en be- stämning av styrvinkelns momentana storlek, åtminstone inom ett begränsat variationsområde för denna vinkel kring vinkel- värdet 0°. En dylik bestämning av styrvinkelns momentana storlek förutsätter dock att man känner till hur kurvan över utsignalen U som funktion av styrvinkehioí varierar i beroende av det rådande toppvärdet för utsignalen U.The control angle sensor 10 can also be used for a determination of the instantaneous size of the control angle, at least within a limited range of variation for this angle around the angular value 0 °. Such a determination of the instantaneous magnitude of the control angle, however, presupposes that one knows how the curve over the output signal U as a function of the control angle angle varies depending on the prevailing peak value of the output signal U.

Vidare kan givaren 10 även utnyttjas för detektering av ett eller flera par av förutbestämda, från styrvinkeln O° avvikande styrvinklar med inbördes motsatta riktningar.Furthermore, the sensor 10 can also be used for detecting one or more pairs of predetermined control angles deviating from the control angle 0 ° with mutually opposite directions.

En sådan detektering kan ske genom att man detekterar till- fällen då utsignalen U uppgår till ett visst förutbestämt värde, som är lägre än toppvärdet. Då givaren är avsedd att utnyttjas för dylik detektering kan det i vissa fall vara önskvärt att utforma nockpartiet 13' hos kammen 13 på sådant sätt att kurvan över utsignalen U som funktion av styrvinkeln 06 på i fig. 5 visat sätt kommer att bli asymmetrisk i stället för symmetrisk kring styrvinkeln 0°.Such a detection can take place by detecting occasions when the output signal U amounts to a certain predetermined value, which is lower than the peak value. When the sensor is intended to be used for such detection, it may in some cases be desirable to design the cam portion 13 'of the cam 13 in such a way that the curve over the output signal U as a function of the control angle 06 in the manner shown in Fig. 5 will be asymmetrical instead. too symmetrical about the steering angle 0 °.

I fig. 2 visas en styrvinkelgivare enligt en andra utföringsform av uppfinningen, vid vilken halleffektele- mentet 11 och permanentmagneten 12 har ersatts med en med en järnkärna 17 försedd spole 18. Denna spole 18 kan vara inkopplad i en svängningskrets, vars resonansfrekvens kom- mer att variera i beroende av läget för kammen 13. Häri- genom kan man från den till spolen anslutna elektriska '__-u 502 358 5 kretsenheten 19 erhålla en utsignal som består av en växel- spänning med i beroende av styrvinkeln varierande frekvens.Fig. 2 shows a control angle sensor according to a second embodiment of the invention, in which the hall effect element 11 and the permanent magnet 12 have been replaced by a coil 18 provided with an iron core 17. This coil 18 can be connected in an oscillation circuit, the resonant frequency of which to vary depending on the position of the cam 13. As a result, an output signal consisting of an alternating voltage with a frequency varying depending on the control angle can be obtained from the electrical unit 19 connected to the coil.

Claims (8)

502 358 b Patentkrav502 358 b Patent claims 1. Styrvinkelgivare för ett motorfordon, k ä n n e - t e c k n a d av att den är inrättad att alstra en elektrisk signal med en i beroende av fordonets styrvinkel kontinuerligt varierande parameter, som uppvisar ett extremvärde för styr- vinkeln 0° och som varierar i beroende av styrvinkeln enligt en kurva över dess värde som funktion av styrvinkeln, vilken uppvisar en kraftig lutning inom nära och på var sin sida om styrvinkelvärdet 0° belägna delar av densamma.Steering angle sensor for a motor vehicle, characterized in that it is designed to generate an electrical signal with a parameter which continuously varies depending on the steering angle of the vehicle, which has an extreme value for the steering angle 0 ° and which varies depending on the steering angle according to a curve of its value as a function of the steering angle, which has a steep slope within parts of it located close to and on either side of the steering angle value. 2. Styrvinkelgivare enligt krav 1, k ä n n e t e C k - n a d av att nämnda parameter utgöres av storleken hos den av styrvinkelgivaren alstrade elektriska signalen.2. Control angle sensor according to claim 1, characterized in that said parameter is constituted by the magnitude of the electrical signal generated by the control angle sensor. 3. Styrvinkelgivare enligt krav l, k ä n n e t e c k - n a d av att nämnda parameter utgöres av frekvensen hos en av givaren alstrad växelspänningssignal.3. A control angle sensor according to claim 1, characterized in that said parameter is constituted by the frequency of an alternating voltage signal generated by the sensor. 4. Styrvinkelgivare enligt något av krav l - 3, k ä n - n e t e c k n a d av att nämnda parameter varierar i be- roende av styrvinkeln enligt en kring styrvinkelvärdet 0° symmetrisk kurva över dess värde som funktion av styrvinkeln.Steering angle sensor according to any one of claims 1 - 3, characterized in that said parameter varies depending on the steering angle according to a 0 ° symmetrical curve around the steering angle value over its value as a function of the steering angle. 5. Styrvinkelgivare enligt något av krav l - 3, k ä n - n e t e c k n a d av att nämnda parameter varierar i be- roende av styrvinkeln enligt en kring styrvinkelvärdet 0° asymmetrisk kurva över dess värde som funktion av styrvinkeln.Steering angle sensor according to any one of claims 1 - 3, characterized in that said parameter varies depending on the steering angle according to a 0 ° asymmetric curve around the steering angle value over its value as a function of the steering angle. 6. Styrvinkelgivare enligt något av föregående krav, k ä n n e t e c k n a d av att den utnyttjas för detektering av styrvinkeln 0°.Steering angle sensor according to one of the preceding claims, characterized in that it is used for detecting the steering angle 0 °. 7. Styrvinkelgivare enligt något av föregående krav, k ä n n e t e c k n a d av att den utnyttjas för bestämning av styrvinkelns momenana storlek.Steering angle sensor according to one of the preceding claims, characterized in that it is used for determining the momentary size of the steering angle. 8. Styrvinkelgivare enligt något av föregående krav, k ä n n e t e c k n a d av att den utnyttjas för detektering av minst ett par förutbestämda, från styrvinkeln 0° avvikande styrvinklar med inbördes motsatta riktningar.Steering angle sensor according to one of the preceding claims, characterized in that it is used for detecting at least a pair of predetermined steering angles deviating from the steering angle 0 ° with mutually opposite directions.
SE9303127A 1993-09-24 1993-09-24 Steering angle sensor for a motor vehicle SE502358C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9303127A SE502358C2 (en) 1993-09-24 1993-09-24 Steering angle sensor for a motor vehicle
PCT/SE1994/000884 WO1995008751A1 (en) 1993-09-24 1994-09-26 Steering angle transducer
JP7509724A JPH09503293A (en) 1993-09-24 1994-09-26 Steering angle transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9303127A SE502358C2 (en) 1993-09-24 1993-09-24 Steering angle sensor for a motor vehicle

Publications (3)

Publication Number Publication Date
SE9303127D0 SE9303127D0 (en) 1993-09-24
SE9303127L SE9303127L (en) 1995-03-25
SE502358C2 true SE502358C2 (en) 1995-10-09

Family

ID=20391211

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9303127A SE502358C2 (en) 1993-09-24 1993-09-24 Steering angle sensor for a motor vehicle

Country Status (3)

Country Link
JP (1) JPH09503293A (en)
SE (1) SE502358C2 (en)
WO (1) WO1995008751A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2750493B1 (en) * 1996-06-28 1998-09-18 Peugeot ANGULAR DISPLACEMENT SENSOR OF A STEERING WHEEL
DE10012179A1 (en) * 2000-03-13 2001-10-04 Methode Electronics Malta Ltd Pedal device for a motor vehicle with a displacement sensor unit
FR2839361B1 (en) * 2002-05-06 2004-09-17 Siemens Vdo Automotive METHOD AND DEVICE FOR ADJUSTING A DETECTOR FOR THE PASSAGE OF A DISCONTINUITY OF A MOBILE METAL PART
DE102005015285A1 (en) * 2005-04-04 2006-10-12 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Level control device of a vehicle
DE102006056906A1 (en) * 2006-12-02 2008-06-05 Continental Teves Ag & Co. Ohg Sensor arrangement for measurement of angle of rotation of electric motor i.e. servo motor, has encoder exhibiting borehole that receives shaft, so that magnetic field influenced by encoder changes rotation axis based on angle of rotation
US8380397B2 (en) * 2009-06-19 2013-02-19 Cnh America Llc Off-road vehicle with redundant non-contact multi-revolution angle sensor
JP5598057B2 (en) * 2010-03-31 2014-10-01 横浜ゴム株式会社 Steering angle detection device and steering angle detection method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2030254T3 (en) * 1988-11-02 1992-10-16 Daimler-Benz Aktiengesellschaft DIRECTION ANGLE SENSOR OF AN AUTOMOBILE VEHICLE.

Also Published As

Publication number Publication date
JPH09503293A (en) 1997-03-31
WO1995008751A1 (en) 1995-03-30
SE9303127L (en) 1995-03-25
SE9303127D0 (en) 1993-09-24

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