WO2005124368A1 - Dispositif de detection servant a detecter une vitesse de vehicule reelle - Google Patents

Dispositif de detection servant a detecter une vitesse de vehicule reelle Download PDF

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Publication number
WO2005124368A1
WO2005124368A1 PCT/EP2005/051844 EP2005051844W WO2005124368A1 WO 2005124368 A1 WO2005124368 A1 WO 2005124368A1 EP 2005051844 W EP2005051844 W EP 2005051844W WO 2005124368 A1 WO2005124368 A1 WO 2005124368A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor device
vehicle
speed
wheel
sensor
Prior art date
Application number
PCT/EP2005/051844
Other languages
German (de)
English (en)
Inventor
Klaus VOIGTLÄNDER
Lars Jakubowski
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2005124368A1 publication Critical patent/WO2005124368A1/fr

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
    • G01P3/42—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
    • G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
    • 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
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • 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

Definitions

  • the present invention relates to a sensor device for a vehicle for detecting an actual vehicle speed.
  • Speed sensors are used to determine a wheel speed of the vehicle.
  • Such speed sensors are based on the sensor side on magnetized disks or pulse wheels, which a receiving device at
  • Wheel motion detected and counted as magnetic impulses are transmitted to a control unit in the vehicle, which uses the number of pulses to calculate the speed of the vehicle over time.
  • a control unit in the vehicle which uses the number of pulses to calculate the speed of the vehicle over time.
  • Sensor devices only detect wheel movements that are greater than 2.75 km / h. Ie a very slow rolling of the vehicle is not recognized. Besides, one is Detection of the direction of movement is not possible with every sensor and in every situation or is relatively complex.
  • ABS, ASR, ESP or EHB ABS, ASR, ESP or EHB is used, the movement of the wheel in relation to the ground is necessary for exact and comfortable brake control.
  • Modern brake systems therefore use model calculations for a large number of different vehicle states in order to calculate the most accurate possible actual vehicle speed and use it as the basis for a braking operation. However, this is very complex and, based on the model calculation, continues to be subject to certain uncertainty factors.
  • the sensor device according to the invention for a vehicle for detecting speeds with the features of
  • claim 1 has the advantage that it can detect both the speed of a wheel of the vehicle and the actual speed of the vehicle over the ground. According to the invention, this is possible with a single sensor device. This means that there is no need for complex software for model calculations to determine a reference vehicle speed as a value for the actual speed. According to the invention, it is therefore possible for any driving condition to determine the actual speed and the wheel speed (speed) and thus to initiate a braking process that may be necessary more precisely. This further increases vehicle safety.
  • the speed values of the wheel speed and the actual vehicle speed determined by the sensor device according to the invention can also be used to regulate driving dynamics states and acceleration states of the vehicle.
  • the sensor device preferably determines the speed of the wheel and the actual speed at the same time
  • the sensor device determines the speed of the wheel and the actual speed in succession.
  • a period of time can also preferably be specified in which the wheel speed or the actual vehicle speed is determined.
  • the sensor device transmits one
  • Control device of the vehicle preferably a value for the speed of the vehicle over ground and a value for a speed of a wheel.
  • the sensor device comprises a
  • Evaluation device to which wheel slip values based on the values recorded by the sensor device for the speed of the vehicle above ground and the Calculates wheel speed and forwards the calculated values to a control device of the vehicle.
  • the sensor device is an optical one
  • Sensor device in particular a video device or a lidar.
  • the optical sensor device further preferably comprises a device for changing the optical orientation of the sensor device.
  • the device for changing the optical orientation is preferably a folding mirror or a semi-reflective layer. When using a folding mirror, the optical alignment is changed mechanically by changing the position of the folding mirror.
  • the sensor device is a radar.
  • the advantage of the radar is that there are no pollution-related problems, such as optical ones
  • the sensor device designed as a radar preferably comprises two electronically switchable or movable antennas in order to detect the speed of the wheel or the actual vehicle speed over the ground.
  • a swivel device is provided to cover the entire
  • the sensor device can control the speed in the first position of the wheel and in the second position record the actual vehicle speed over the ground.
  • the sensor device according to the invention is particularly preferably arranged adjacent to a wheel, for example on the wheel arch of the vehicle. Sensor devices are preferably provided on each wheel of the vehicle. This allows the slip of each wheel to be determined. Alternative applications are e.g. to provide a sensor device only on one wheel or only one axle of the vehicle.
  • the values for the wheel speed and the actual vehicle speed above ground determined by the sensor device according to the invention are preferably used in braking systems, such as ABS, ASR, ESP, EHB, ACC or automatic parking brakes.
  • the values determined by the sensor device according to the invention can also be used for engine electronics (motronics), gearboxes, locks, acceleration controls, vehicle display systems, tire diagnostics, communication devices and / or vehicle-to-vehicle com munications.
  • the sensor device according to the invention for a vehicle thus offers new possibilities for an exact speed measurement and can provide advantages in terms of improved accuracy at very low costs for all units in the vehicle which require the exact vehicle speed.
  • the device according to the invention has a short Response time and high availability. Through the exact determination of the vehicle speed, in addition to improved safety, increased comfort during operation can be obtained by using the determined values.
  • Figure 1 is a schematic view of a sensor device according to the invention according to an embodiment of the present invention.
  • the sensor device 1 is an optical sensor device, such as a lidar (Light Detection and Ranging) or a video device.
  • the sensor device 1 is arranged on a wheel arch 7 of the vehicle adjacent to a wheel 2.
  • reference numeral 3 denotes the surface on which the vehicle is traveling.
  • the sensor device 1 emits a first light beam 5 in the direction of the base 3 and a second and third light beam 4a and 4b to the wheel 2.
  • an actual speed of the vehicle above the ground 3 can be determined by means of the light beam 5 and a rotational speed of the wheel 2 by means of the second and third light beams 4a and 4b can be determined.
  • the wheel speed of the wheel 2 can then be calculated in a known manner.
  • the sensor device 1 then gives the determined values for the speed of the wheel 2 and the actual speed of the vehicle above the
  • Sub-surface 3 to a control device 6.
  • the control device 6 is thus able to perform a significantly improved brake control of the vehicle based on the actual vehicle speed over ground.
  • the sensor device 1 according to the invention shown schematically in FIG. 1 can also be fastened in the engine compartment of the vehicle.
  • the sensor device 1 is a
  • the radar sensor is positioned accordingly, it is also a radar sensor for additional environment sensors, e.g. for distance measurement or similar can be used .

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Regulating Braking Force (AREA)

Abstract

L'invention concerne un dispositif de détection conçu pour un véhicule, servant à détecter des vitesses. Selon l'invention, le dispositif de détection (1) est configuré pour détecter une vitesse de rotation d'une roue du véhicule, et une vitesse réelle du véhicule sur le sol (3).
PCT/EP2005/051844 2004-06-16 2005-04-25 Dispositif de detection servant a detecter une vitesse de vehicule reelle WO2005124368A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004029002.4 2004-06-16
DE200410029002 DE102004029002A1 (de) 2004-06-16 2004-06-16 Sensoreinrichtung zur Erfassung einer tatsächlichen Fahrzeuggeschwindigkeit

Publications (1)

Publication Number Publication Date
WO2005124368A1 true WO2005124368A1 (fr) 2005-12-29

Family

ID=34966082

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/051844 WO2005124368A1 (fr) 2004-06-16 2005-04-25 Dispositif de detection servant a detecter une vitesse de vehicule reelle

Country Status (2)

Country Link
DE (1) DE102004029002A1 (fr)
WO (1) WO2005124368A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008031639A1 (fr) * 2006-09-12 2008-03-20 Continental Automotive Gmbh Dispositif de détection, procédé de réalisation d'une régulation du comportement dynamique et système de régulation du comportement dynamique
DE102010038541A1 (de) * 2010-07-28 2012-02-02 Continental Teves Ag & Co. Ohg Sensoranordnung zur Erfassung des Federwegs in einem Kraftfahrzeug
WO2018114154A1 (fr) * 2016-12-19 2018-06-28 Robert Bosch Gmbh Procédé de commande et dispositif pour un système anti-blocage d'un deux-roues

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017008949A1 (de) * 2017-09-25 2019-03-28 Lucas Automotive Gmbh Radschlupfregelung für ein Kraftfahrzeug
DE102019202062A1 (de) * 2019-02-15 2020-08-20 Zf Friedrichshafen Ag Zustandserfassungsvorrichtung, Verfahren zum Erfassen eines Zustands sowie Fahrzeug
DE102021206313A1 (de) 2021-06-21 2022-12-22 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zum Ermitteln einer Fahrgeschwindigkeit eines Fahrrads und Sensoranordnung
WO2023160788A1 (fr) * 2022-02-24 2023-08-31 Volvo Truck Corporation Systèmes pour déterminer la vitesse d'un véhicule au sol

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3701568A (en) * 1970-09-30 1972-10-31 Bendix Corp Adaptive braking system utilizing doppler radar
US3735200A (en) * 1971-12-08 1973-05-22 Sperry Rand Corp Wheel slip sensor
DE2354491A1 (de) * 1973-10-31 1975-05-07 Leitz Ernst Gmbh Verfahren und einrichtung zur ermittlung der maximalen bremswirkung
JPS59226867A (ja) * 1983-06-08 1984-12-20 Sumitomo Electric Ind Ltd 車両の対地速度および車輪速度測定装置
DE19928624A1 (de) * 1999-06-23 2001-01-11 Siegfried Hillenbrand Fahrwerksteuerung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3701568A (en) * 1970-09-30 1972-10-31 Bendix Corp Adaptive braking system utilizing doppler radar
US3735200A (en) * 1971-12-08 1973-05-22 Sperry Rand Corp Wheel slip sensor
DE2354491A1 (de) * 1973-10-31 1975-05-07 Leitz Ernst Gmbh Verfahren und einrichtung zur ermittlung der maximalen bremswirkung
JPS59226867A (ja) * 1983-06-08 1984-12-20 Sumitomo Electric Ind Ltd 車両の対地速度および車輪速度測定装置
DE19928624A1 (de) * 1999-06-23 2001-01-11 Siegfried Hillenbrand Fahrwerksteuerung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 101 (P - 353) 2 May 1985 (1985-05-02) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008031639A1 (fr) * 2006-09-12 2008-03-20 Continental Automotive Gmbh Dispositif de détection, procédé de réalisation d'une régulation du comportement dynamique et système de régulation du comportement dynamique
DE102010038541A1 (de) * 2010-07-28 2012-02-02 Continental Teves Ag & Co. Ohg Sensoranordnung zur Erfassung des Federwegs in einem Kraftfahrzeug
WO2018114154A1 (fr) * 2016-12-19 2018-06-28 Robert Bosch Gmbh Procédé de commande et dispositif pour un système anti-blocage d'un deux-roues

Also Published As

Publication number Publication date
DE102004029002A1 (de) 2006-01-05

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