# US 2008/0184843 A1 · Accelerator Pedal Module With Magnetic Sensor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2008/0184843 A1 - Document ID: US20080184843A1 - Status: Published application - Kind: A1 - Application number: 11/817,632 - Filed: 2006-01-17 - Published: 2008-08-07 - Earliest claimed: 2005-03-23 - Inventors: Thomas Klotzbuecher; Bernhard Bauer; Sebastien Weiss; Bernd Koeberle - Web page: https://patentgrep.com/patent/US20080184843A1 ## CPC - G01D 5/145: {influenced by the relative movement between the Hall device and magnetic fields (see G01R33/06)} - F02D 11/02: characterised by hand, foot, or like operator controlled initiation means - G01D 11/245: {Housings for sensors} - G05G 1/38: comprising means to continuously detect pedal position - Y10T 74/20534: Accelerator - 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 - F02D: CONTROLLING COMBUSTION ENGINES (vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed B60K31/00; conjoint control of vehicle sub-units of different type or different function, road vehicle drive control systems for purposes other than the control of a single sub-unit B60W) - G05G: CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY ("Bowden" or like mechanisms F16C1/10; gearings or mechanisms not peculiar to this purpose F16H; speed changing or reversing mechanisms for gearings conveying rotary motion F16H59/00 - F16H63/00) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract The invention relates to an accelerator pedal module for controlling a drive motor power such as an internal combustion engine for a motor vehicle comprising a pedal lever pivotally maintained about an axis of rotation on a bearing bloc k The pivoting movement of the pedal lever with respect to the bearing block changes the direction of at least one magnetic field which change is converted into an electric signal by at least one sensor element and represents the pivoting angle of the pedal lever with respect to the bearing block. The magnetic field is generated by at least two bipolar magnets between which said sensor element is placed. ## Claims ### Claim at position 1 1-16. (canceled) ### Claim 17 In an accelerator pedal module for controlling the power of a drive motor or engine such as an internal combustion engine of a vehicle, the module having a pedal lever held rotatably on a bearing block for pivotable movement about pivot axis, and at least one sensor element for detecting the pivoting motion of the pedal lever relative to the bearing block, the improvement wherein, with the aid of the at least one sensor element a change in the direction of at least one magnetic field which change originates in the pivoting motion of the pedal lever relative to the bearing block is convertible into an electrical signal which represents the rotary angle of the pedal lever relative to the bearing block and the magnetic field is generated by at least two bipolar magnets between which the sensor element is disposed. ### Claim 18 (depends on 17) The accelerator pedal module as defined by claim 17, wherein the magnets are embodied as magnet disks and are magnetized diametrically with respect to a disk plane. ### Claim 19 (depends on 18) The accelerator pedal module as defined by claim 18, wherein the magnet disks are embodied identically and are disposed symmetrically with respect to the sensor element. ### Claim 20 (depends on 19) The accelerator pedal module as defined by claim 19, wherein the magnet disks are disposed coaxially and parallel with respect to one another. ### Claim 21 (depends on 20) The accelerator pedal module as defined by claim 20, wherein the center axes of the magnet disks are disposed coaxially with the pivot axis. ### Claim 22 (depends on 21) The accelerator pedal module as defined by claim 21 wherein the magnet disks each have a recess on their side pointing toward the sensor element. ### Claim 23 (depends on 18) The accelerator pedal module as defined by at least claim 18, wherein the magnet disks viewed in cross section, have two circumferential surface portions diametrically opposed to the magnet poles and embodied parallel to one another and rectilinearly, and two arclike circumferential surface portions disposed between the circumferential portions along the circumference of the discs. ### Claim 24 (depends on 18) The accelerator pedal module as defined by claim 18, wherein the sensor element includes at least one integrated Hall IC, with Hall elements which are disposed parallel to or perpendicular to the magnet disks. ### Claim 25 (depends on 18) The accelerator pedal module as defined by claim 18, wherein one magnet disk each is received in a respective journal pointing perpendicularly away from the pedal lever, of a shaft which is pivotably supported in the bearing block and is connected to the pedal lever in a manner fixed against relative rotation. ### Claim 26 (depends on 25) The accelerator pedal module as defined by claim 25, wherein the shaft comprises a central recess disposed between the shaft journals into which recess the sensor element which is connected to the bearing block, protrudes. ### Claim 27 (depends on 26) The accelerator pedal module as defined by claim 26, wherein one radially outer circumferential surface of each shaft journal forms a bearing face of the pedal lever. ### Claim 28 (depends on 11) The accelerator pedal module as defined by claim 11, wherein at least a portion of the circumferential surface of the shaft journals is provided with a friction lining, which cooperates with an associated bearing face of the bearing block. ### Claim 29 (depends on 17) The accelerator pedal module as defined by claim 17, further comprising at least one spring element prestressing the pedal lever into its outset position, which spring element is braced on one end on the bearing block and on its other end on a bracing portion of the pedal lever, and a pressure element linearly guided in the tensing direction of the spring element disposed in the bearing block between the bracing portion and the other end of the spring element, and wherein a rolling face of the bracing portion can be rolled along the pressure element. ### Claim 30 (depends on 18) The accelerator pedal module as defined by claim 18, further comprising at least one spring element prestressing the pedal lever into its outset position, which spring element is braced on one end on the bearing block and on its other end on a bracing portion of the pedal lever, and a pressure element linearly guided in the tensing direction of the spring element disposed in the bearing block between the bracing portion and the other end of the spring element, and wherein a rolling face of the bracing portion can be rolled along the pressure element. ### Claim 31 (depends on 19) The accelerator pedal module as defined by claim 19, further comprising at least one spring element prestressing the pedal lever into its outset position, which spring element is braced on one end on the bearing block and on its other end on a bracing portion of the pedal lever, and a pressure element linearly guided in the tensing direction of the spring element disposed in the bearing block between the bracing portion and the other end of the spring element, and wherein a rolling face of the bracing portion can be rolled along the pressure element. ### Claim 32 (depends on 20) The accelerator pedal module as defined by claim 20, further comprising at least one spring element prestressing the pedal lever into its outset position, which spring element is braced on one end on the bearing block and on its other end on a bracing portion of the pedal lever, and a pressure element linearly guided in the tensing direction of the spring element disposed in the bearing block between the bracing portion and the other end of the spring element, and wherein a rolling face of the bracing portion can be rolled along the pressure element. ### Claim 33 (depends on 21) The accelerator pedal module as defined by claim 21, further comprising at least one spring element prestressing the pedal lever into its outset position, which spring element is braced on one end on the bearing block and on its other end on a bracing portion of the pedal lever, and a pressure element linearly guided in the tensing direction of the spring element disposed in the bearing block between the bracing portion and the other end of the spring element, and wherein a rolling face of the bracing portion can be rolled along the pressure element. ### Claim 34 (depends on 29) The accelerator pedal module as defined by claim 29, wherein the pressure element is braced against at least one stop by the spring forces of the at least one spring element in the outset position of the pedal lever in such a way that essentially no spring forces act on the pedal lever. ### Claim 35 (depends on 29) The accelerator pedal module as defined by claim 29, wherein between the pressure element and the bearing block, two identical spring elements are disposed parallel to one another. ### Claim 36 (depends on 35) The accelerator pedal module as defined by claim 35, wherein, in the outset position the bracing portion of the pedal lever is braced against an elastic stop retained on the bearing block.