WO2010063747A1 - Circuit de commande d'un capteur - Google Patents

Circuit de commande d'un capteur Download PDF

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Publication number
WO2010063747A1
WO2010063747A1 PCT/EP2009/066209 EP2009066209W WO2010063747A1 WO 2010063747 A1 WO2010063747 A1 WO 2010063747A1 EP 2009066209 W EP2009066209 W EP 2009066209W WO 2010063747 A1 WO2010063747 A1 WO 2010063747A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit arrangement
sensor
arrangement according
electrical
voltage
Prior art date
Application number
PCT/EP2009/066209
Other languages
German (de)
English (en)
Inventor
Andreas KNÖDLER
Constant Nguene Njongue
Original Assignee
Zf Lenksysteme Gmbh
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 Zf Lenksysteme Gmbh filed Critical Zf Lenksysteme Gmbh
Publication of WO2010063747A1 publication Critical patent/WO2010063747A1/fr

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
    • B62D15/021—Determination of steering angle
    • 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

Definitions

  • the invention relates to a circuit arrangement for driving a sensor which detects a steering angle of a motor vehicle.
  • the steering angle When using a purely electrical or electronic sensor, the steering angle must be re-taught after a voltage dip, since usually the absolute rotational position is not detected, but the executed rotations of the servo motor are counted.
  • a steering system for a vehicle with a servo motor for providing a steering torque for steering angle adjustment is known, for example, from the publication DE 10 2006 042 104 A1.
  • the rotational movement of a shaft of the servo motor is detected by a rotor position sensor whose signals are used by an evaluation device for determining an absolute steering angle of the steered wheel.
  • a rotational movement of the shaft of the servo motor in a non-operating position of the vehicle by a control device for the evaluation with a so-called sleep mode counter in size, direction and detected over a defined evaluation period.
  • the proposed circuit arrangement is used to control at least one sensor or a sensor system for detecting a steering angle.
  • the at least one sensor or the sensor system is operated via an electrical system of the motor vehicle, which provides a supply voltage.
  • an electrical power supply is additionally provided, which provides a sufficiently high voltage for the at least one electrical sensor in the case of a drop in the supply voltage, in particular in the case of strong voltage dips, such as, for example, a starting pulse.
  • the at least one sensor is supplied with a sufficiently high voltage at all times, so that the value of the angle of rotation stored in the sensor is not lost.
  • This memory element may comprise a capacitor.
  • a voltage source or a generator may be provided.
  • an electrical device is furthermore provided, which assumes a control function.
  • This electrical device can be designed such that it fulfills a valve function.
  • This valve function can be provided by at least one diode.
  • the electrical device can be designed such that it fulfills a switching function.
  • a usually electrical or electronic switch can be provided.
  • a semiconductor switch in particular a MOSFET (Metal Oxide Semiconductor Field Effect Transistor), is used as the switch.
  • MOSFET Metal Oxide Semiconductor Field Effect Transistor
  • other semiconductor switches can be used.
  • One way to protect the electronics thereby, can be achieved in one embodiment thus using a capacitor as an energy buffer or memory and a diode that performs a valve function and used to disconnect the electrical system in case of voltage drops.
  • the diode prevents the energy stored in the capacitor from flowing back into the electrical system.
  • the steering angles are thus supplied during the break-in via the capacitor.
  • on-board breaks can be bridged to 0 V.
  • the length of the burglary to be bridged typically up to 50 ms, can be dimensioned relatively easily over the size of the capacitor.
  • the input voltage to the steering angle sensor is monitored to detect a loss of steering angle, for example, at extremely long voltage drops, e.g. disconnecting the battery so that it can be reliably detected.
  • FIG. 1 shows an embodiment of the presented circuit arrangement.
  • FIG. 2 shows a further embodiment of the presented circuit arrangement.
  • FIG. 3 shows a detail of a possible circuit arrangement.
  • FIG. 1 shows an embodiment of the circuit arrangement, indicated generally by the reference numeral 10.
  • the illustration shows a sensor 12, which is provided for determining or detecting the steering angle of a motor vehicle.
  • FIG. 2 shows a further circuit arrangement 20, which serves to drive a sensor 22.
  • This sensor 22 is operated via a battery 24 of a vehicle electrical system.
  • a power supply 26 in this case a voltage source, is provided.
  • a switch 28 allows switching between the battery 24 and the power supply 26.
  • FIG. 3 shows a section of a possible circuit arrangement.
  • a capacitor 30, an electrical device 32 with switching and valve function which includes a first diode 34 and a second diode 36, and a battery 38 and an additional storage element 40 is shown.
  • the battery 38 powers a sensor, not shown, with the first diode 34 conducting.
  • the second diode 36 becomes conductive and supplies the sensor. This ensures an adequate power supply to the sensor.
  • the additionally provided capacitor 30 serves as an additional energy store for the failure of both the battery 38 and the memory element 40th

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Air Bags (AREA)

Abstract

L'invention concerne un circuit (10) de commande d'un capteur (12) de détection d'un angle de braquage. L'invention concerne également, pour ce circuit de commande (10), une alimentation en tension électrique qui fournit, en cas de défaillance du réseau de bord, une tension suffisamment haute pour le capteur (12).
PCT/EP2009/066209 2008-12-02 2009-12-02 Circuit de commande d'un capteur WO2010063747A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008044245.3 2008-12-02
DE102008044245A DE102008044245A1 (de) 2008-12-02 2008-12-02 Schaltungsanordnung zum Ansteuern eines Sensors

Publications (1)

Publication Number Publication Date
WO2010063747A1 true WO2010063747A1 (fr) 2010-06-10

Family

ID=41531804

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/066209 WO2010063747A1 (fr) 2008-12-02 2009-12-02 Circuit de commande d'un capteur

Country Status (2)

Country Link
DE (1) DE102008044245A1 (fr)
WO (1) WO2010063747A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3214415A1 (fr) * 2016-03-03 2017-09-06 Insta GmbH Capteur comprenant un microprocesseur et procédé de fourniture et d'introduction d'un signal de capteur dans un bus d'installation d'un dispositif d'automatisation de bâtiment

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010045618A1 (de) * 2010-09-17 2012-03-22 Thyssenkrupp Presta Ag Vorrichtung zur Erfassung des Drehwinkels einer Lenksäule
DE102017103035A1 (de) 2017-02-15 2018-08-16 Schaeffler Technologies AG & Co. KG Sensoranordnung und Verfahren zum Betrieb einer Sensoranordnung zur Bestimmung einer Position eines Aktors in einem Kraftfahrzeug

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10145884A1 (de) * 2001-09-18 2003-04-30 Hella Kg Hueck & Co Elektronischer Winkelsensor
US20070046102A1 (en) * 2005-08-02 2007-03-01 Axel Reithofer Sensor arrangement and method of supplying power to sensors therein
DE102006042104A1 (de) * 2005-09-24 2007-04-12 Zf Lenksysteme Gmbh Lenksystem
WO2007141634A1 (fr) * 2006-06-06 2007-12-13 Toyota Jidosha Kabushiki Kaisha Appareil de direction assistée électrique et procédé de commande de celui-ci

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19946073A1 (de) * 1999-09-25 2001-05-10 Volkswagen Ag System zur Steuerung von Fahrzeugkomponenten nach dem "Drive By Wire"-Prinzip
DE102006037014B4 (de) * 2006-08-04 2021-03-18 Volkswagen Ag Vorrichtung und Verfahren für eine Lenkunterstützung und Bereitstellung einer Lenkwinkelinformation für Fahrzeuge mit elektromechanischer Lenkung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10145884A1 (de) * 2001-09-18 2003-04-30 Hella Kg Hueck & Co Elektronischer Winkelsensor
US20070046102A1 (en) * 2005-08-02 2007-03-01 Axel Reithofer Sensor arrangement and method of supplying power to sensors therein
DE102006042104A1 (de) * 2005-09-24 2007-04-12 Zf Lenksysteme Gmbh Lenksystem
WO2007141634A1 (fr) * 2006-06-06 2007-12-13 Toyota Jidosha Kabushiki Kaisha Appareil de direction assistée électrique et procédé de commande de celui-ci

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3214415A1 (fr) * 2016-03-03 2017-09-06 Insta GmbH Capteur comprenant un microprocesseur et procédé de fourniture et d'introduction d'un signal de capteur dans un bus d'installation d'un dispositif d'automatisation de bâtiment

Also Published As

Publication number Publication date
DE102008044245A1 (de) 2010-06-10

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