WO2008119433A3 - Determining speed by partially heating a roadway - Google Patents

Determining speed by partially heating a roadway Download PDF

Info

Publication number
WO2008119433A3
WO2008119433A3 PCT/EP2008/001773 EP2008001773W WO2008119433A3 WO 2008119433 A3 WO2008119433 A3 WO 2008119433A3 EP 2008001773 W EP2008001773 W EP 2008001773W WO 2008119433 A3 WO2008119433 A3 WO 2008119433A3
Authority
WO
WIPO (PCT)
Prior art keywords
speed
roadway
vehicle
time
determining device
Prior art date
Application number
PCT/EP2008/001773
Other languages
German (de)
French (fr)
Other versions
WO2008119433A2 (en
Inventor
Frank Gensler
Original Assignee
Bayerische Motoren Werke Ag
Frank Gensler
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 Bayerische Motoren Werke Ag, Frank Gensler filed Critical Bayerische Motoren Werke Ag
Publication of WO2008119433A2 publication Critical patent/WO2008119433A2/en
Publication of WO2008119433A3 publication Critical patent/WO2008119433A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/50—Devices characterised by the use of electric or magnetic means for measuring linear speed
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
    • G01P3/68—Devices characterised by the determination of the time taken to traverse a fixed distance using optical means, i.e. using infrared, visible, or ultraviolet light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T2250/00—Monitoring, detecting, estimating vehicle conditions
    • B60T2250/04—Vehicle reference speed; Vehicle body speed

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
  • Traffic Control Systems (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention relates to a system for determining the speed of a motor vehicle. In order to provide a sufficiently accurate system for determining the speed of a landcraft, in a first step according to the invention, a heat generating source that is arranged on or in the motor vehicle partially heats at least one point of the roadway on which the vehicle travels, and a speed determining device records the time of calefaction. In a second step, a heat sensor located on or in the vehicle senses that the roadway has been partially heated. The speed determining device records or registers the time of sensing by the sensor. According to the invention, the speed determining device knows the predetermined distance between the heat generating source or the point where the roadway is partially heated and the heat sensor. The speed determining device calculates the vehicle speed, especially the forward speed and/or the transversal speed of the vehicle, from the predetermined distance and the difference between the time the heating process occurs and the time the sensor senses the calefaction.
PCT/EP2008/001773 2007-03-29 2008-03-06 Determining speed by partially heating a roadway WO2008119433A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710015121 DE102007015121A1 (en) 2007-03-29 2007-03-29 Speed determination through partial driving surface heating
DE102007015121.9 2007-03-29

Publications (2)

Publication Number Publication Date
WO2008119433A2 WO2008119433A2 (en) 2008-10-09
WO2008119433A3 true WO2008119433A3 (en) 2009-01-08

Family

ID=39719443

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/001773 WO2008119433A2 (en) 2007-03-29 2008-03-06 Determining speed by partially heating a roadway

Country Status (2)

Country Link
DE (1) DE102007015121A1 (en)
WO (1) WO2008119433A2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD288231A5 (en) * 1989-10-03 1991-03-21 Hochschule Fuer Verkehrswesen "Friedrich List" Dresden,De METHOD FOR DETERMINING THE DRIVING SPEED OF RAIL-LINKED VEHICLES
US5983157A (en) * 1996-10-24 1999-11-09 Toyota Jidosha Kabushiki Kaisha Apparatus for detecting quantity of vehicle motion

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3388328A (en) * 1965-06-10 1968-06-11 Koppers Co Inc Pulsed laser system for relative speed measurement
JP2007046949A (en) * 2005-08-08 2007-02-22 Sumitomo Electric Ind Ltd Vehicle-mounted ground speed measuring apparatus and ground-speed measuring method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD288231A5 (en) * 1989-10-03 1991-03-21 Hochschule Fuer Verkehrswesen "Friedrich List" Dresden,De METHOD FOR DETERMINING THE DRIVING SPEED OF RAIL-LINKED VEHICLES
US5983157A (en) * 1996-10-24 1999-11-09 Toyota Jidosha Kabushiki Kaisha Apparatus for detecting quantity of vehicle motion

Also Published As

Publication number Publication date
DE102007015121A1 (en) 2008-10-02
WO2008119433A2 (en) 2008-10-09

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