WO2005008282A1 - Vorrichtung zur bestimmung der fahrzeugeigengeschwindigkeit - Google Patents
Vorrichtung zur bestimmung der fahrzeugeigengeschwindigkeit Download PDFInfo
- Publication number
- WO2005008282A1 WO2005008282A1 PCT/DE2004/001480 DE2004001480W WO2005008282A1 WO 2005008282 A1 WO2005008282 A1 WO 2005008282A1 DE 2004001480 W DE2004001480 W DE 2004001480W WO 2005008282 A1 WO2005008282 A1 WO 2005008282A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- speed
- vehicle
- sensor system
- determining
- crash sensor
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0134—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to imminent contact with an obstacle, e.g. using radar systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0132—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
- G01S13/60—Velocity or trajectory determination systems; Sense-of-movement determination systems wherein the transmitter and receiver are mounted on the moving object, e.g. for determining ground speed, drift angle, ground track
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/932—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles using own vehicle data, e.g. ground speed, steering wheel direction
Definitions
- the invention relates to a device for determining the vehicle's own speed according to the type of the independent patent claim.
- the device according to the invention for determining the vehicle's own speed with the features of the independent patent claim has the advantage that the evaluation of the vehicle's own speed by means of a pre-crash sensor system based on reflected signals on the ground is only used when a predetermined operating state is present.
- These predefined operating states are, for example, locked wheels, spinning wheels or wheels floating in the air. These operating states mean that the measurement of the own speed over the wheel speed fails.
- Airspeed measurement with the pre-crash sensor system based on signals reflected on the ground.
- the measures and developments listed in the dependent claims permit advantageous improvements to the devices for determining the vehicle's own speed specified in the independent patent claim.
- the pre-crash sensor system has a radar sensor system.
- the device compares the signal reflected by an object with the vehicle's own speed in order to classify the object. If the object shows a relative movement to the vehicle equal to its own speed based on the reflected signals, then it is a stationary object. This stationary object could then also be used to determine the object.
- Airspeed can be used.
- FIG. 1 shows a mode of operation of the device according to the invention
- FIG. 2 shows a block diagram of the device according to the invention
- Figure 3 shows a first flow chart and Figure 4 shows a second flow chart.
- the wide opening angle of the pre-crash sensor provides not only the actual useful signals from oncoming or standing obstacles, but also signal components that come from the road. The vehicle's own speed can then be calculated from these always present signal components.
- Pre-crash sensors can preferably use a radar sensor here, but it is also possible to use an ultrasonic sensor or a lidar technology or other signals that are emitted and reflected again.
- FIG. 1 shows the operation of the device according to the invention.
- a vehicle 10 has a pre-crash sensor system 11, here a radar sensor system, which emits radar beams 13 and 15 here by way of example.
- the radar beam 13 is reflected on the street floor 12, while the radar beam 15 is reflected on the object 14. Since the angle of the radar beam 13 to the road is always the same, the signal propagation time from the radar sensor 11 to the road 12 is always the same. The signal transit time thus provides a measure of the
- the signal transit time to obstacle 14 decreases with decreasing distance.
- the signal sequence of the reflected signals is also a measure of the vehicle's own speed when the obstacle 14 is not moving. Classification of the obstacle 14 is thus possible.
- FIG. 2 shows a block diagram of the device according to the invention.
- a pre-crash sensor system 20 is connected to a signal processing unit 21.
- the signal processing 21 amplifies, filters and digitizes the signals of the pre-crash sensor system 20.
- the digital signals are then transmitted from the signal processing 21 to a control unit 22.
- This control unit 22, here the control unit for the restraint means, is an example.
- the vehicle's own speed is an important one
- the control unit 22 controls the restraint means 24.
- the restraining means 24 include airbags, belt tensioners or roll bars.
- FIG. 3 explains the functioning of the device according to the invention in a first flow chart.
- the method begins in method step 300.
- step 301 a check is made, based on data from a vehicle dynamics control system or an ABS control unit, to determine whether a condition is present which makes it necessary to determine the own speed by means of the pre-crash sensor system. These conditions include those that determine the
- step 303 the airspeed is determined on the basis of the wheel speed. However, if this is the case, then in method step 302 the pre-crash sensor system, as shown above, shows the airspeed based on the reflected signal at the
- FIG. 4 explains the functioning of the device according to the invention in a second flow chart.
- the method begins in method step 400.
- method step 401 reflected signals are evaluated on an object.
- Evaluation takes place in such a way that the speed of the object sequence is evaluated. This means that the vehicle's own speed can be determined when the object is at rest. Consequently, in step 402 it is evaluated whether the speed which can be determined on the basis of the object sequence corresponds to the airspeed. If this is the case, then it is determined in method step 403 that the object is at rest. If this is not the case, then it is determined in method step 404 that the object is moving.
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Air Bags (AREA)
- Radar Systems Or Details Thereof (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006519759A JP2007528995A (ja) | 2003-07-15 | 2004-07-08 | 自動車自身の速度を測定する装置 |
| EP04738896A EP1646888A1 (de) | 2003-07-15 | 2004-07-08 | Vorrichtung zur bestimmung der fahrzeugeigengeschwindigkeit |
| US10/517,508 US20060100760A1 (en) | 2003-07-15 | 2004-07-08 | Device for determining the actual vehicle speed |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10331965.4 | 2003-07-15 | ||
| DE10331965A DE10331965A1 (de) | 2003-07-15 | 2003-07-15 | Vorrichtung zur Bestimmung der Fahrzeugeigengeschwindigkeit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005008282A1 true WO2005008282A1 (de) | 2005-01-27 |
Family
ID=33560107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2004/001480 Ceased WO2005008282A1 (de) | 2003-07-15 | 2004-07-08 | Vorrichtung zur bestimmung der fahrzeugeigengeschwindigkeit |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20060100760A1 (de) |
| EP (1) | EP1646888A1 (de) |
| JP (1) | JP2007528995A (de) |
| DE (1) | DE10331965A1 (de) |
| WO (1) | WO2005008282A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005017422A1 (de) * | 2005-04-15 | 2006-10-19 | Robert Bosch Gmbh | Fahrerassistenzsystem mit Einrichtung zur Erkennung von stehenden Objekten |
| DE102007002754A1 (de) * | 2007-01-18 | 2007-11-22 | Daimlerchrysler Ag | Geschwindigkeitsmessvorrichtung |
| DE102008008385A1 (de) * | 2008-02-09 | 2009-08-13 | Adc Automotive Distance Control Systems Gmbh | Verfahren zur Bestimmung der Geschwindigkeit für ein Strahlsensorsystem |
| US9903945B2 (en) | 2015-02-04 | 2018-02-27 | GM Global Technology Operations LLC | Vehicle motion estimation enhancement with radar data |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1402408A (en) * | 1973-01-22 | 1975-08-06 | Nissan Motor | Vehicle speed sensor for skid control system |
| US5430450A (en) * | 1993-02-10 | 1995-07-04 | Ford Motor Company | Method and apparatus for automatically dimming motor vehicle headlights using radar signal |
| DE19860633A1 (de) * | 1998-12-29 | 2000-07-06 | Valeo Schalter & Sensoren Gmbh | Verfahren zum Messen der Geschwindigkeit eines Fahrzeugs |
| US20020011924A1 (en) * | 2000-02-22 | 2002-01-31 | Schwartz Brian C. | Method and apparatus for detecting vehicle stop |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5104063A (en) * | 1990-04-27 | 1992-04-14 | Hartley James M | Aircraft landing gear prerotation system |
| US5583800A (en) * | 1992-06-19 | 1996-12-10 | Toyota Jidosha Kabushiki Kaisha | Vehicle speed sensor utilizing relationship between vehicle wheel speed and doppler-effect speed |
-
2003
- 2003-07-15 DE DE10331965A patent/DE10331965A1/de not_active Withdrawn
-
2004
- 2004-07-08 WO PCT/DE2004/001480 patent/WO2005008282A1/de not_active Ceased
- 2004-07-08 JP JP2006519759A patent/JP2007528995A/ja active Pending
- 2004-07-08 EP EP04738896A patent/EP1646888A1/de not_active Withdrawn
- 2004-07-08 US US10/517,508 patent/US20060100760A1/en not_active Abandoned
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1402408A (en) * | 1973-01-22 | 1975-08-06 | Nissan Motor | Vehicle speed sensor for skid control system |
| US5430450A (en) * | 1993-02-10 | 1995-07-04 | Ford Motor Company | Method and apparatus for automatically dimming motor vehicle headlights using radar signal |
| DE19860633A1 (de) * | 1998-12-29 | 2000-07-06 | Valeo Schalter & Sensoren Gmbh | Verfahren zum Messen der Geschwindigkeit eines Fahrzeugs |
| US20020011924A1 (en) * | 2000-02-22 | 2002-01-31 | Schwartz Brian C. | Method and apparatus for detecting vehicle stop |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1646888A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10331965A1 (de) | 2005-02-03 |
| JP2007528995A (ja) | 2007-10-18 |
| US20060100760A1 (en) | 2006-05-11 |
| EP1646888A1 (de) | 2006-04-19 |
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