EP2936059A1 - Device for determining the location of a vehicle - Google Patents
Device for determining the location of a vehicleInfo
- Publication number
- EP2936059A1 EP2936059A1 EP13802664.6A EP13802664A EP2936059A1 EP 2936059 A1 EP2936059 A1 EP 2936059A1 EP 13802664 A EP13802664 A EP 13802664A EP 2936059 A1 EP2936059 A1 EP 2936059A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vehicle
- determining
- data
- filter
- movement
- 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
- 230000001133 acceleration Effects 0.000 claims description 21
- 230000033001 locomotion Effects 0.000 claims description 20
- 230000005484 gravity Effects 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 3
- 230000004927 fusion Effects 0.000 description 17
- 238000011161 development Methods 0.000 description 10
- 230000018109 developmental process Effects 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 8
- 238000001514 detection method Methods 0.000 description 8
- 230000001934 delay Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241000270725 Caiman Species 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
-
- 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
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/10—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration
- G01C21/12—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning
- G01C21/16—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
- G01C21/165—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation combined with non-inertial navigation instruments
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/265—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network constructional aspects of navigation devices, e.g. housings, mountings, displays
-
- 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
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/45—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement
- G01S19/47—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement the supplementary measurement being an inertial measurement, e.g. tightly coupled inertial
Definitions
- the invention relates to a device for locating
- Vehicle and a vehicle with the device Vehicle and a vehicle with the device.
- a device for locating a vehicle with a position determination device comprises the position determination device for determining a position locating the vehicle, a movement determination device for determining a driving dynamics of the vehicle and a filter device for determining a fault in the position of the vehicle based on the Driving dynamics, wherein the position-determining device and thetagssbeéess- device are connected to the filter device via a respective dedicated line.
- the stated device is based on the idea that the error determined by the filter device could be used, for example, to correct the locating position in the filter device itself or in the position-determining device. However, the correction would only make sense if the error is determined promptly for detecting the location of the vehicle and the vehicle dynamics of the vehicle, since the error otherwise no longer fits the location of the vehicle and thus outdated. The particular error would be worthless.
- the stated device is further based on the consideration that it makes sense in a normal vehicle architecture, the position-determining device, such as a receiver for a global navigation satellite system signal, hereinafter called GNSS receiver, and the motion determination device, such as an inertial sensor, called IMU , to be installed in two different places, since their measured variables to be detected are falsified by different boundary conditions.
- GNSS receiver a receiver for a global navigation satellite system signal
- IMU inertial sensor
- a GNSS receiver should be placed as close to the antenna as possible to minimize signal attenuation of the GNSS signal due to long cables.
- an IMU should be arranged as possible at the center of gravity of the vehicle in order to avoid lever-error caused by the detection of the driving dynamics of the vehicle. Therefore, the data of the two sensors would have to be exchanged in any way with each other, for which an already installed in the vehicle bus system, such as a CAN bus (Controller Area Network Bus) would be suitable.
- CAN bus Controller Area Network Bus
- non-deterministic and thus non-correctable transmission latencies could arise due to the transmission of the data from the position detection device and the motion detection device via the bus system.
- these non-deterministic transmission latencies can be up to 2 ms, which can increase due to jitter of typically up to 2 ms, in the maximum up to 10 ms.
- the filter device would thus receive according to outdated data, whereby the data integrity of the calculated error of the filter device decreases accordingly. If such an outdated error were used to correct the vehicle's location or driving dynamics of the vehicle, it could even cause the opposite effect and degrade the data integrity of the vehicle's location or vehicle dynamics.
- acceleration and / or rotation rate data of the vehicle about the main axes are to be understood as the driving dynamics data output by the movement determination device.
- the driving dynamics data output by the movement determination device may include longitudinal accelerations, lateral accelerations, altitude accelerations, yaw rates, roll data and / or pitch data.
- the position-determining device, the movement-determining device, the filter device and the dedicated lines are integrated in a common module. In this way, the lengths of the dedicated lines between the position-determining device, the motion-determining device and the filter device and thus run time delays can be further reduced, whereby the data integrity of the data from the filter device is further increased.
- the common module comprises a common substrate on which the position-determining device, the movement-determining device, the filter device and the dedicated lines are arranged. In this way, the lengths of the dedicated lines and thus the aforementioned propagation delays can be minimized, whereby the data integrity of the data from the fil- ter issued is further increased.
- the specified device may comprise a memory which is shared by the position-determining device, the motion-determining device and the filter device, so that delays in memory access are reduced to a minimum can be.
- the position-determining device is set up to determine the absolute position of the vehicle based on two different position-determining signals with two different frequencies. In this way, a greater accuracy of the position-determining device and thus a better basis for the fusion with the motion-determining device can be achieved.
- the position determination device is set up to receive the error from the filter device and to correct the location of the vehicle based on the error.
- a position-determining device for example, includes a receiver for a signal of a deeply coupled global navigation satellite system, called a deeply coupled GNSS receiver.
- the navigation information such as position, speed and so on are played back into the deeply coupled GNSS receiver to better compensate for variations in, for example, Doppler shifts in input frequencies and so on.
- the data of the motion-determining device are therefore used not only exclusively in the filter device in order to enable the most accurate location, but also in the position-determining device in order to increase the robustness and sensitivity of the device
- GNSS signal reception to improve.
- the aforementioned improvements can also be made when using a tightly GNSS receiver observed as a position determining device in the specified device, in a deeply coupled GNSS receiver, however, an error in the vehicle-locating position is further reduced by a feedback in the position determining device, resulting in a higher data integrity.
- this higher data integrity can be achieved only with sufficiently low dead times in the feedback and thus sufficiently low transmission latencies, which is why the specified device in conjunction with a deeply coupled GNSS receiver can exploit their full potential for increasing data integrity.
- a vehicle comprises one of the specified devices.
- the specified vehicle comprises an antenna for receiving a signal for the position-determining device, wherein the device is arranged on the antenna.
- the movement determination device mainly introduces errors by lever arms in the vehicle dynamics data, if this is not arranged in the vehicle's center of gravity.
- the lever arms are largely deterministic error factors, particularly in vehicles with rigid vehicle bodies, and can be taken into account in the output of the vehicle dynamics data. Therefore, the arrangement of the motion-determining device together with the position-determining device in the vicinity of the antenna is technically most sensible.
- the arrangement of the movement determination device on the antenna is advantageous, since the movement determination device can move synchronously with the antenna when detecting the driving dynamics of the vehicle, and thereby errors in locating the vehicle can be suppressed, in a vehicle with a non-rigid Vietnamesekaros series by the movement of the antenna relative to the center of gravity of the vehicle occur.
- the specified vehicle comprises a further movement-determining device, which is arranged at a center of gravity of the vehicle.
- a further movement-determining device which is arranged at a center of gravity of the vehicle.
- the specified vehicle could, in an additional development, have a yaw rate determination device which is set up to determine yaw rates of the vehicle based on acceleration signals output from the motion determination devices.
- a yaw rate determination device which is set up to determine yaw rates of the vehicle based on acceleration signals output from the motion determination devices.
- two cost-effective acceleration measuring devices could be used for the two motion determination devices, which detect the accelerations of the vehicle in the longitudinal, transverse and height directions.
- Fig. 1 is a schematic diagram of a vehicle with a fusion sensor
- Fig. 2 shows a schematic diagram of the fusion sensor of Fig. 1.
- Fig. 1 shows a schematic diagram of a vehicle 2 with a fusion sensor 4.
- the fusion sensor 4 receives in the present embodiment via a known GNSS receiver 6 position data 8 of the vehicle 2, which include an absolute position of the vehicle 2 on a roadway 10.
- position data 8 from the GNSS receiver 6 also includes a speed of the vehicle 2.
- the position data 8 from the GNSS receiver 6 also includes a speed of the vehicle 2.
- GNSS receivers 6 in the present embodiment are derived in a manner known to those skilled in the art from a GNSS signal 12 in the GNSS receiver 6 which is received via a GNSS antenna 13 and hence referred to below as GNSS position data 8.
- GNSS position data 8 For details, refer to the relevant literature.
- the fusion sensor 4 is designed in a manner to be described to increase the information content of the GNSS position data 8 derived from the GNSS signal 12. This is necessary on the one hand because the GNSS signal 12 has a very low signal / noise band spacing and can thus be very inaccurate. On the other hand, the GNSS signal 12 is not always available.
- the vehicle 2 for this purpose has a movement determination device 14, which detects driving dynamics data 16 of the vehicle 2. These are known to include a longitudinal acceleration, a lateral acceleration and a vertical acceleration and a roll rate, a pitch rate and a yaw rate of the vehicle 2.
- These driving dynamics data 16 are used in the present embodiment to increase the information content of the GNSS position data 8 and, for example, the position and the Speed of the vehicle 2 on the Road 10 to specify.
- the refined position data 18 can then be used by a navigation device 20 even if the GNSS signal 12 is not available at all under a tunnel, for example.
- GNSS position data 8 can optionally also be used for wheel speed sensors 22 which detect the wheel speeds 24 of the individual wheels 26 of the vehicle 2.
- a steering angle signal can be used to further increase the information content of the GNSS location data.
- FIG. 2 shows a basic illustration of the fusion sensor 4 from FIG. 1.
- the measurement data already mentioned in FIG. 1 enter into the fusion sensor 4.
- the fusion sensor 4 is to output the specified position data 18.
- the basic idea for this is to contrast the information from the GNSS position data 8 with the vehicle dynamics data 16 from the movement determination device 14 in a filter 30 and thus a signal / noise band distance in the position data 8 of the GNSS receiver 6 or the vehicle dynamics data 16 from the movement determination device 14 to increase.
- the filter can be designed as desired, a Kalman filter solves this problem most effectively with a comparatively low computing resource requirement. Therefore, the filter 30 should preferably be a Kalman filter 30 below.
- the caiman filter 30 is preceded by the more precise position data 18 of the vehicle 2 and comparison position data 34 of the vehicle 2.
- the more precise position data 18 are generated in the present embodiment in a strapdown algorithm 36, known for example from DE 10 2006 029 148 A1, from the vehicle dynamics data 16. They contain more precise position information about the vehicle, but also other position data about the vehicle 2, such as its speed, its acceleration and its heading.
- the comparison position data 34 are obtained from a model 38 of the vehicle 2, the first time is fed from the GNSS receiver 6 with the GNSS location data 8. From this GNSS position data 8, the model 38 then determines the comparison position data 34 containing the same information as the specified position data 18.
- the specified position data 18 and the comparison position data 34 differ only in their values.
- the Kalman filter 30 calculates, based on the refined position data 18 and the comparison position data 34, an error budget 40 for the refined position data 18 and an error budget 42 for the comparison position data 34.
- error budget is understood to mean a total error in a signal consisting of different ones Single errors in the acquisition and transmission of the signal composed.
- the corresponding error budget can be composed of errors of the satellite orbit, the satellite clock, the remaining refraction effects and errors in the GNSS receiver 6. This fault budget would go into the fault budget 42 of the comparison data 34.
- the error budget 40 of the specified position data 18 and the error budget 42 of the comparison position data 34 are then supplied in accordance with the strapdown algorithm 36 and the model 38 for correcting the specified position data 18 and the comparison position data 34, respectively. That is, the refined location data 18 and the comparison location data 34 are iteratively adjusted for their errors.
- the fusion sensor 4, the GNSS receiver 6 and parts of the position determination 14, which is not further referenced in FIG. 2, are arranged in a common fusion module 44, for example as a common housing, as a common substrate, such as a printed circuit board, or can even be designed as a common circuit on a chip.
- the fusion module 44 is arranged locally on the antenna 13 in the vehicle 2.
- the GNSS receiver 6 outputs the position data 8 via a direction indicated in Fig. 2 with a thickened line dedicated line 46 to the fusion sensor 4 from.
- the fusion module 44 comprises a first acceleration detection device 48, which is arranged locally on the antenna 13 together with the GNSS receiver 6.
- the first acceleration detection device 48 detects the accelerations 50 of the vehicle 2 at the location of the antenna 13 in all three spatial directions and transmits them via a dedicated line 46 to an inertial calculation device 52, which in turn transmits the vehicle dynamics data 16 in a manner to be described via a dedicated line to the fusion sensor 4 outputs.
- the fusion module 44 further includes a bus interface parts 54, via which the more precise position data 18 and the wheel speeds 24 can be sent via a CAN bus 56 according to the navigation device 20 and received by the wheel speed sensors 22.
- a second acceleration detection device 58 is further connected to the CAN bus 56, which detects the accelerations 50 of the vehicle 2 at the center of gravity of the vehicle 2 and outputs via the CAN bus 56 to the Inertialbeticians owned 52, together with a precise timestamp.
- the inertial calculation device 52 knows the distance between the first acceleration detection device 48 and the second acceleration detection device 58, so that it can calculate the yaw rates of the vehicle 2, that is to say with respect to yaw, roll and pitch, based on the detected accelerations 50 of the vehicle at the two locations.
- the two acceleration detectors 48, 58 together with the inertial calculator 52 replace a conventional one
- the fault budget 42 for example, of the comparison data 34 with the above-mentioned fault budget of the GNSS signal 12 can optionally be set via a dedicated
- the GNSS receiver 6 can be sent back to the GNSS receiver 6 so that the GNSS receiver 6, as in a well-known GNSS receiver known per se, can specify the determination of the position data 8 based on the GNSS signal 12 taking into account the error budget 42.
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Navigation (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012224109.4A DE102012224109A1 (en) | 2012-12-20 | 2012-12-20 | Device for locating a vehicle |
PCT/EP2013/076244 WO2014095526A1 (en) | 2012-12-20 | 2013-12-11 | Device for determining the location of a vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2936059A1 true EP2936059A1 (en) | 2015-10-28 |
Family
ID=49753195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13802664.6A Ceased EP2936059A1 (en) | 2012-12-20 | 2013-12-11 | Device for determining the location of a vehicle |
Country Status (5)
Country | Link |
---|---|
US (1) | US20150316653A1 (en) |
EP (1) | EP2936059A1 (en) |
CN (1) | CN104870942A (en) |
DE (1) | DE102012224109A1 (en) |
WO (1) | WO2014095526A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014218703A1 (en) * | 2014-09-17 | 2016-03-17 | Continental Teves Ag & Co. Ohg | Redundant localization using GNSS signal |
DE102014219382A1 (en) * | 2014-09-25 | 2016-03-31 | Continental Teves Ag & Co. Ohg | Sensor calibration in a park |
DE102019203328A1 (en) * | 2019-03-12 | 2020-09-17 | Robert Bosch Gmbh | Position determination system for a vehicle, map-based navigation system, vehicle |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030135327A1 (en) * | 2002-01-11 | 2003-07-17 | Seymour Levine | Low cost inertial navigator |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19645394A1 (en) * | 1996-11-04 | 1998-05-20 | Bosch Gmbh Robert | Location sensor with a satellite receiver for position determination |
US6205400B1 (en) * | 1998-11-27 | 2001-03-20 | Ching-Fang Lin | Vehicle positioning and data integrating method and system thereof |
US6480152B2 (en) * | 2000-07-20 | 2002-11-12 | American Gnc Corporation | Integrated GPS/IMU method and microsystem thereof |
US6424914B1 (en) * | 2000-12-26 | 2002-07-23 | American Gnc Corporation | Fully-coupled vehicle positioning method and system thereof |
JP2006176084A (en) * | 2004-12-24 | 2006-07-06 | Advics:Kk | Detection value correction method for vehicle behavior sensor |
DE102006029148B4 (en) | 2006-06-24 | 2010-08-05 | Lfk-Lenkflugkörpersysteme Gmbh | Method for checking an inertial measuring unit of vehicles, in particular of aircraft, in the stationary state |
CN101173860B (en) * | 2006-11-03 | 2011-03-23 | 行毅科技股份有限公司 | Accurate positioning system and method for vehicle |
CN101403620B (en) * | 2008-09-10 | 2013-04-24 | 深圳市同洲电子股份有限公司 | Navigation device and method |
DE102010063984A1 (en) | 2010-02-11 | 2011-08-11 | Continental Teves AG & Co. OHG, 60488 | Vehicle sensor node |
US9547910B2 (en) * | 2010-03-04 | 2017-01-17 | Honeywell International Inc. | Method and apparatus for vision aided navigation using image registration |
CN101907714B (en) * | 2010-06-25 | 2013-04-03 | 陶洋 | GPS aided positioning system and method based on multi-sensor data fusion |
TW201224893A (en) * | 2010-12-09 | 2012-06-16 | Zhi-Xuan Liao | Touch device with light frequency sensor for sensing relative position of object to be detected |
-
2012
- 2012-12-20 DE DE102012224109.4A patent/DE102012224109A1/en active Pending
-
2013
- 2013-12-11 CN CN201380066631.7A patent/CN104870942A/en active Pending
- 2013-12-11 WO PCT/EP2013/076244 patent/WO2014095526A1/en active Application Filing
- 2013-12-11 US US14/650,408 patent/US20150316653A1/en not_active Abandoned
- 2013-12-11 EP EP13802664.6A patent/EP2936059A1/en not_active Ceased
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030135327A1 (en) * | 2002-01-11 | 2003-07-17 | Seymour Levine | Low cost inertial navigator |
Also Published As
Publication number | Publication date |
---|---|
WO2014095526A1 (en) | 2014-06-26 |
DE102012224109A1 (en) | 2014-06-26 |
US20150316653A1 (en) | 2015-11-05 |
CN104870942A (en) | 2015-08-26 |
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