EP4034906A1 - Verfahren und vorrichtung zum bestimmen einer soll-position eines umgebungssensors eines fahrzeugs - Google Patents
Verfahren und vorrichtung zum bestimmen einer soll-position eines umgebungssensors eines fahrzeugsInfo
- Publication number
- EP4034906A1 EP4034906A1 EP20775851.7A EP20775851A EP4034906A1 EP 4034906 A1 EP4034906 A1 EP 4034906A1 EP 20775851 A EP20775851 A EP 20775851A EP 4034906 A1 EP4034906 A1 EP 4034906A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vehicle
- sensor
- actual
- environment sensor
- target
- 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.)
- Pending
Links
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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/02—Rear-view mirror arrangements
- B60R1/06—Rear-view mirror arrangements mounted on vehicle exterior
- B60R1/062—Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position
- B60R1/07—Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position by electrically powered actuators
- B60R1/074—Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position by electrically powered actuators for retracting the mirror arrangements to a non-use position alongside the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
-
- 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
- G01S13/06—Systems determining position data of a target
- G01S13/42—Simultaneous measurement of distance and other co-ordinates
-
- 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
-
- 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
- G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
-
- 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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/06—Systems determining the position data of a target
- G01S15/42—Simultaneous measurement of distance and other co-ordinates
-
- 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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/50—Systems of measurement, based on relative movement of the target
-
- 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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
- G01S15/931—Sonar 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
- G01S7/4026—Antenna boresight
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
- B60R2011/004—Arrangements for holding or mounting articles, not otherwise provided for characterised by position outside the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0042—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
- B60R2011/008—Adjustable or movable supports
- B60R2011/0092—Adjustable or movable supports with motorization
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52004—Means for monitoring or calibrating
- G01S2007/52014—Means for monitoring or calibrating involving a reference reflector integrated in the sensor or transducer configuration
-
- 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
- G01S2013/9329—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles cooperating with reflectors or transponders
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
- G01S7/4052—Means for monitoring or calibrating by simulation of echoes
- G01S7/406—Means for monitoring or calibrating by simulation of echoes using internally generated reference signals, e.g. via delay line, via RF or IF signal injection or via integrated reference reflector or transponder
- G01S7/4078—Means for monitoring or calibrating by simulation of echoes using internally generated reference signals, e.g. via delay line, via RF or IF signal injection or via integrated reference reflector or transponder involving an integrated reference reflector or reference transponder
Definitions
- the present invention relates to a method for determining a target position of an environmental sensor of a vehicle.
- the present invention also relates to a device for determining a target position of an environmental sensor of a vehicle.
- Modern vehicles usually have a large number of driver assistance systems which have environmental sensors for monitoring the surroundings of the vehicle.
- Such systems assist, for example, when parking, when changing lanes or implement other functions such as ACC (Adaptive Cruise Control) functions, lane keeping functions, emergency braking functions and the like.
- ACC Adaptive Cruise Control
- lane keeping functions lane keeping functions
- emergency braking functions emergency braking functions and the like.
- the data provided by the environmental sensors represent the most exact possible representation of the real conditions.
- the environmental sensors are usually calibrated with regard to their installation position and their installation orientation (orientation) in the vehicle. If the environmental sensors are also sensors that measure a relative speed, such as, for example, radar or ultrasonic sensors, the relative speed measured by the sensors is also calibrated in advance.
- the term “calibrate” in this context means that an actual actual installation position, actual installation orientation and actual relative speed are assigned to a desired or assumed setpoint installation position, setpoint orientation and setpoint relative speed.
- the calibration ensures that the data made available by the environmental sensors, such as, for example, distance, alignment / position and possibly relative speed of an object, are the real ones Correspond to the circumstances.
- Such a calibration is usually carried out before delivery of the vehicle by means of external calibration objects.
- the object of the present invention is therefore to create a possibility with which a calibration of an environmental sensor that has taken place once can be updated or tracked in a simple and inexpensive manner.
- a method for determining a target position or a target installation position of an environmental sensor of a vehicle by means of a vehicle-side add-on element serving as a calibration object is created, the environment sensor and the vehicle-side add-on element being movable relative to one another.
- the method comprises the following steps: determining a first actual position or a first actual installation position of the environmental sensor in a first relative position between the environment sensor and the vehicle-side add-on element, moving the environment sensor and / or the vehicle-side add-on element from the first relative position to a second relative position between the environment sensor and the vehicle-side add-on element, determining a second actual position or a second actual installation position of the environment sensor in the second relative position and determining the target position or the target installation position of the environmental sensor by averaging the first actual position and the second actual position to an averaged actual position and assigning the averaged actual position as the target position.
- the method according to the first aspect is based, in particular, on the knowledge that the actual or actual installation position of the environmental sensor varies over the course of the life of the vehicle, for example due to the setting behavior of the environmental sensor, accidents in the vehicle or also due to environmental influences such as stone chips and the consequent Under certain circumstances, the distortion of the bodywork deviates from the original (factory-set) target installation position. Due to the deviation between the actual installation position or actual position of the environmental sensor and the target installation position or target position of the environmental sensor, the sensor data may be decalibrated, with the result that the data provided by the environmental sensor is inaccurate or are faulty.
- the idea of the invention is to recalibrate an environment sensor that has been decalibrated once without additional, external calibration objects, or to correct the calibration that has been set once.
- the invention is based on the knowledge that by a relative movement between the environment sensor and the vehicle-side add-on element, several relative positions between the vehicle-side add-on element and the environment sensor can be obtained, for each of which a respective actual position can then be determined, which is then determined by averaging be transferred to an averaged actual position and this averaged actual position is then used as the target position or target installation position of the environmental sensor.
- averaging generally means the formation of a further value from given values.
- the term “averaging” does not only mean arithmetic, geometric, quadratic or weighted averaging of the actual positions, but also the application of other calculation rules to the determined actual positions, such as mathematical filter functions, regressions, etc.
- the method is also used to determine a nominal orientation or a nominal installation orientation of the environmental sensor.
- alignment can be understood to mean an orientation or an angular position of a sensor plane of the environmental sensor with respect to reference planes of a coordinate system. The alignment of the environmental sensor is important in order to be able to correctly determine not only the position but also the angular position of an environmental subject relative to the environmental sensor.
- the method according to the invention in the preferred embodiment therefore includes the following additional steps: Determining an actual orientation or an actual installation orientation of the environmental sensor during the first Relative position, determine a second actual orientation or a second actual installation orientation of the environmental sensor in the second relative position, ie in the relative position that is present after the environmental sensor and / or the vehicle-side add-on elements were moved relative to each other, and finally the determination of the target orientation or the target installation orientation of the environmental sensor by averaging the first actual orientation and the second actual orientation to an averaged actual orientation and assigning the averaged actual orientation as Target alignment.
- These additional steps make it possible, for example, to recalibrate a setting behavior with regard to an angular position of a sensor plane of the environmental sensor, so that the actual actual installation orientation of the environmental sensor is assigned as the target installation orientation of the environmental sensor.
- the method is also used to determine a setpoint relative speed to be determined by the environment sensor.
- This refinement is particularly suitable for environmental sensors which, in addition to a position and orientation of an environmental object, can also determine a relative speed between the vehicle (or the sensor) and the environmental object.
- environmental sensors are, for example, radar sensors, ultrasonic sensors or other sensors known to those skilled in the art.
- the calibration of the environmental sensor in addition to the already mentioned calibration of the target position and the target orientation of the environmental sensor, the calibration of the environmental sensor can also be performed determined target relative speed are calibrated. Since, in turn, an external calibration object can be dispensed with and a vehicle-side add-on element serves as the calibration object instead, modern environmental sensors, such as radar or ultrasonic sensors, can also be (re) calibrated easily and inexpensively during the life of the vehicle in this preferred embodiment.
- moving the environment sensor and / or the vehicle-side add-on element from the first relative position to the second relative position only comprises moving the vehicle-side add-on element relative to the environment sensor.
- the add-on element on the vehicle side is moved relative to the ambient sensor and not the ambient sensor relative to the add-on element on the vehicle side.
- the vehicle-side add-on element is, for example, a motor-driven adjustable mirror, in particular a side mirror, of the vehicle
- the movement of the vehicle-side add-on element is preferably carried out by a motor-driven adjustment of the mirror.
- the idea here is that, in modern vehicles, the side mirrors in particular can usually be adjusted by a motor anyway.
- the motorized adjustment of the mirrors can then be used to move the add-on element on the vehicle side relative to the environmental sensor, so that the target position, target orientation and target relative speed of the environmental sensor can be determined quickly and easily.
- the motorized adjustment of the mirror also has the advantage that every Relative position between the mirror and the environmental sensor, the position, orientation / angular position and speed of the mirror is known and thereby fixed or predetermined reference data for calibrating the environmental sensor with regard to its installation position, installation orientation and the relative speed to be determined by it is possible.
- the term “mirror” does not designate the reflective surface, but rather the movable add-on element of the vehicle. Whether the reflective surface is a glass surface or a camera is irrelevant in this context.
- the term “motorized” adjustment of the mirror can also mean an adjustment of the mirror by means of a piezomotor system. Alternatively, it is conceivable that instead of a motorized adjustment of the mirror, a manual adjustment of the mirror takes place and the time course of this is recorded by means of a corresponding sensor.
- the step of moving the environment sensor and / or the vehicle-side add-on element from the first relative position to the second relative position only comprises moving the environment sensor relative to the vehicle-side add-on element.
- the environment sensor is moved relative to the vehicle-side add-on element, but not the vehicle-side add-on element relative to the environment sensor.
- this also includes other distinctive features of the vehicle such as a door handle, an A-pillar, a B-pillar, a C-pillar, a headrest, a rear-view mirror, etc., i.e. all internal or external add-on elements of the vehicle that represent a prominent point in the field of view of the environmental sensor.
- a motorized adjustable flap such as a tailgate, a vehicle door or a fuel filler cap of the vehicle, then the movement of the environment sensor relative to the vehicle-side add-on element can preferably be done by motorized adjustment the flap.
- flaps such as tailgates, vehicle doors or the like are usually adjustable by motor anyway, this motorized adjustment can be used to move the environment sensor relative to the vehicle-side add-on element, so that the target position, target orientation and target relative speed can be determined of the environmental sensor, in turn, can be done quickly and easily.
- a “motorized” adjustment of the flap can be understood not only as an active motorized adjustment of the flap, but also a braking / deceleration of the flap that counteracts a manual movement of the flap by a motor.
- This particularly preferred embodiment also makes use of the fact that, due to the motorized adjustment of the flap, the position, orientation / angular position and speed of the environmental sensor relative to the vehicle-side attachment element is known in every relative position between the environmental sensor and the vehicle-side attachment element and is therefore fixed or predetermined Reference data for calibrating the environmental sensor with regard to its installation position, installation orientation and the relative speed to be determined by it is possible.
- the environmental sensor is moved along an additional predetermined calibration path (for example by means of a guide specially set up for this purpose).
- the step of moving the environment sensor and / or the vehicle-side add-on element from the first relative position to the second relative position includes moving both the environment sensor and the add-on element.
- both the environment sensor and the add-on element are moved. Due to the movement of the environmental sensor and add-on element, a higher accuracy or a more precise calibration of the environmental sensor can be carried out.
- a further calibration object located in the vicinity of the vehicle is used to determine the target position or target orientation or target relative speed.
- This calibration object can be, for example, a floor, a street sign, a lane marking or another striking surrounding object of the vehicle, which can serve as a calibration object.
- this additional calibration object external to the vehicle can also be a prominent point of a vehicle driving ahead or behind.
- the accuracy of the calibration can be further increased, for example also through a possibly dynamic relative movement between the environmental sensor and the additional calibration object.
- the environment sensor is a first environment sensor and the vehicle has at least one further, second environment sensor, a target position of the at least one further (second) environment sensor being determined by means of the target position of the first environment sensor.
- a target alignment of the at least one further (second) environmental sensor is determined by means of the target alignment of the first environmental sensor.
- a target relative speed of the at least one further (second) environmental sensor is determined by means of the target relative speed of the first environmental sensor.
- the target position, the target orientation and the target relative speed of further environmental sensors of the vehicle can be determined with the aid of the target position, target orientation and target relative speed of the (first) environmental sensor.
- the environment sensor is a radar sensor and the first actual position and / or the second actual position of the environment sensor can be determined by means of a synthetic aperture.
- a synthetic aperture Such methods are based on the idea that the aperture of a large antenna of the environmental sensor is synthesized from the intensity and phase position of received radar echoes from the environmental sensor. As a result, a higher spatial resolution for determining the first and / or second actual position can be achieved.
- a device for determining a target position of an environmental sensor of a vehicle by means of a vehicle-side add-on element serving as a calibration object, the environment sensor and the vehicle-side add-on element being movable relative to one another.
- the device according to the second aspect has, inter alia, a computing unit for performing a method according to the first aspect or configurations thereof. This creates a device with which a calibration that has been set can be updated or tracked even during the life of the vehicle.
- the device also has the environment sensor and the add-on element on the vehicle.
- FIG. 2 shows a side view of a vehicle to better illustrate the present teaching
- FIG. 3 shows a further plan view of a vehicle with a further embodiment of the device according to the invention
- FIG. 4 shows a further plan view of a vehicle with a further embodiment of the device according to the invention
- FIG. 5 shows a further plan view of a vehicle with a further embodiment of the device according to the invention
- FIG. 6 shows a schematic representation of a flow chart of an embodiment of a method according to the invention.
- FIG. 7 shows a schematic representation of a flow chart of a further embodiment of the method according to the invention.
- FIG. 1 shows a device 10 for determining a target position, a target orientation and a target relative speed of an environmental sensor 12 of a vehicle 14.
- the device 10 has, in addition to the environment sensor 12, a vehicle-side add-on element 16 serving as a calibration object, which in the specific example of FIG. 1 is a motor-driven mirror, in particular a side mirror, of the vehicle 14.
- the device 10 also has a computing unit 18, which is operationally connected to the vehicle-side add-on element or side mirror 16 and the Environment sensor 12 is connected.
- the environment sensor 12 is, for example, a radar sensor or an ultrasonic sensor.
- the motorized adjustable side mirror 16 can be moved between a first position 20 and a second position 22.
- Moving the side mirror 16 results in a first relative position between the side mirror 16 and the environment sensor 12, which is defined by the first position 20 of the side mirror 16 relative to the position of the environment sensor 12, and a second relative position between the side mirror 16 and the environment sensor 12 , which is defined by the second position 22 of the side mirror 16 relative to the position of the environmental sensor 12.
- the positions 20, 22 and the position of the environmental sensor which can be an installation position of the environmental sensor 12, for example, is specified in x, y and z coordinates with the aid of a Cartesian coordinate system, which has the reference number 24 in FIG.
- the side mirror 16 has the Cartesian coordinates xO, yO, zO in the first position and the Cartesian coordinates x1, y1 and z1 in the second position 22.
- the x-axis of the Cartesian coordinate system denotes a front-rear direction with respect to the vehicle 14
- the z-axis of the Cartesian coordinate system denotes an up-and-down direction with respect to the vehicle 14
- the y-axis denotes a direction perpendicular to x-axis and perpendicular to the z-axis and pointing away from vehicle 14.
- the coordinate system does not have to be a Cartesian coordinate system, but can be chosen as desired.
- the coordinate system 24 shown in FIG. 1 serves only to illustrate the present teaching.
- the z coordinate in position 22 has the same value as the z coordinate in position 20. This is also only exemplary and is not intended to be limiting be interpreted.
- the side mirror 16 has a speed v0 in the first position 20 and the side mirror 16 has a speed v1 in the second position 22.
- the environment sensor 12 has an installation position which has been set at the factory and which is defined by the Cartesian coordinates xSens, ySens and zSens.
- a sensor plane of the environmental sensor 12 has an angle alphaSens in the xy plane. As indicated in FIG.
- the sensor plane of the environmental sensor 12 also has an angle betaSens in the xz plane.
- the environment sensor 12 can furthermore determine a relative speed to an environment object, such as, for example, the side mirror 16. This is indicated generally by the designation vSens in FIG.
- the environmental sensor 12 can measure both the position (exemplarily given by the x, y, z coordinates) and the spatial location or orientation (exemplarily given by angles with respect to the xy and xz planes) of the side mirror 16 relative to the sensor plane of the Determine environment sensor 12, as well as a relative speed between the side mirror 16 and the environment sensor 12, and that in each relative position between the side mirror 16 and the environment sensor 12, i. H. in each position 20 and 22.
- the environment sensor 12 determines, for example, in the first position 20 of the side mirror 16, the coordinates xO, yO and zO and the angles of the side mirror 16 with respect to the xy or xz plane (not shown for better clarity) as well as a relative speed vO between the side mirror 16 and the environment sensor 12.
- the environment sensor 12 determines, for example, the coordinates x1, y1 and z1, the angle of the side mirror 16 with respect to the xy or xz plane (not for better clarity shown) as well as a relative speed v1 between the side mirror 16 and the environment sensor 12.
- the environment sensor delivers for each of these relative positions between the side mirror 16 and the environment sensor 12 (ie for each position 20, 22) 12 that is, data records that describe a position and a location / orientation of the side mirror 16 relative to the environment sensor 12 as well as a relative speed between the side mirror 16 and the environment sensor 12.
- the side mirror 16 moves along a predetermined path due to the motorized adjustment and therefore both the speed and the position / orientation as well as the position of the side mirror 16 relative to the ambient sensor 12 is known at any point in time of the movement, it can be based on the the data sets provided by the environment sensor 12, the computing unit 18 the actual position or orientation, ie the actual position and actual orientation of the environment sensor 12, as well as the actual relative speed, ie the actual relative speed between the side mirror 16 and the environment sensor 12, for each of the positions 20, 22. Subsequently, the computing unit 18 averages the actual positions obtained to an averaged actual position, the computing unit 18 averages the actual alignments obtained to an averaged actual alignment and the computing unit 18 averages the actual relative speeds obtained to an averaged actual relative speed.
- the averaged actual position is finally assigned or stored as the actual position or as the target position of the environmental sensor 12 (in the form of the coordinates xSens, ySens and zSens).
- the averaged actual alignment is assigned or stored as the actual alignment or as the target alignment of the environmental sensor 12 (in the form of the angles alphaSens, betaSens).
- the averaged actual relative speed is assigned or stored as the target relative speed (in the form of vSens).
- an installation position of the environmental sensor 12 that has been stored, for example, at the factory is updated or tracked, since the actual installation position of the environmental sensor 12 is assigned as the target installation position.
- an installation orientation of the environmental sensor 12 stored once at the factory is updated or tracked, since the actual installation orientation of the environmental sensor 12 is assigned as the target installation orientation.
- a relative speed that is stored once at the factory and to be determined by the environmental sensor 12 is updated or stored in that the actual relative speed determined by the environment sensor 12 is assigned as the target relative speed. The update increases the accuracy of the data made available by the environment sensor 12 and improves the reliability of the environment sensor 12 or the reliability of the driver assistance systems connected to the environment sensor 12.
- FIG. 3 shows a further device 10 for determining a target position, target orientation and target relative speed of the environmental sensor 12.
- the add-on element on the vehicle side is not moved, but the environmental sensor 12 is moved.
- the environment sensor 12 is arranged on a flap 24 of the vehicle 14.
- the flap 24 is a side door of the vehicle 14.
- the flap 24 can also be a patch flap, a tank lid or another movable flap of the vehicle 14.
- the flap or side door 24 can also be adjusted by a motor. As a result of the motorized adjustment of the flap 24, the environmental sensor 12 can move along a predetermined path. The movement of the side door 24 in turn results in a change in the relative position between the environmental sensor 12 and the add-on element on the vehicle side.
- the environment sensor 12 is therefore shown in FIG. 3 in two positions 26, 28. In the first position 26, the flap or side door 24 is shown in the closed state and the environment sensor 12 has the coordinates xSensl, ySensl, zSensl and the speed vSensl. In the second position 28, the flap or side door 24 is in an open state and the environment sensor 12 has the coordinates xSens2, ySens2, zSens2 and the speed vSens2.
- the add-on element on the vehicle side is not a side mirror (as shown in FIG is designated.
- the A-pillar 30 is thus used as a calibration object for the environment sensor 12.
- the environment sensor 12 can now deliver data sets for each of the positions 26, 28 or for each relative position between the environment sensor 12 and the A-pillar 30, which include a position and a position / orientation of the A-pillar 30 relative to the environment sensor 12 as well as a Describe the relative speed between the A-pillar 30 and the environmental sensor 12.
- the arithmetic unit 18 can determine the actual position or orientation, ie the actual position and actual orientation of the environment sensor 12, as well as the actual relative speed, ie the actual Determine the relative speed between the A-pillar 30 and the environmental sensor 12 for each of the positions 26, 28 or each of the relative positions.
- the arithmetic unit 18 then averages the obtained actual positions to an averaged actual position or the arithmetic unit 18 averages the obtained actual alignments to an averaged actual alignment or the arithmetic unit 18 averages them obtained actual relative speeds to an averaged actual relative speed and stored the averaged actual position as the actual position or target position (in the form of xSens, ySens, zSens) of the environment sensor 12 or the averaged actual orientation as the actual orientation or
- the target alignment of the environmental sensor 12 in the form of the angles alphaSens, betaSens
- the averaged actual relative speed between the environmental sensor 12 and the A-pillar 30 is stored as the target relative speed (in the form of vSens).
- the advantage of moving the environment sensor 12 relative to the add-on element on the vehicle side or to the A-pillar 30 is, inter alia, that non-movable add-on elements on the vehicle side can now also be used as calibration objects.
- a rear-view mirror, a B-pillar, a C-pillar, a headrest or another useful internal or external vehicle-side add-on element can be used as the calibration object.
- FIG. 4 shows a further device 10 for determining a target position, target orientation and target relative speed of the environmental sensor 12.
- both the environment sensor 12, which in the specific example of FIG. 4 is mounted on a motorized adjustable flap 32 or a rear side door, are used in the device 10 of FIG , as well as the add-on element on the vehicle side, which in the specific example of FIG. 4 is an inner door handle 34 of the flap or of the front side door 24, moves.
- the rear side door 32 or the environment sensor 12 is only shown in a single position (represented by the coordinates xSens, ySens, zSens and the speed vSens) and is also the vehicle-side add-on element or the inner one Door handle 34 is only shown in a single position (represented by the coordinates xAT, yAT, zAT and the speed vAT).
- both the rear side door 32 and the front side door 24 can be adjusted by a motor and as a result, both the environment sensor 12 and the vehicle-mounted add-on element or the inner door handle 34 are moved along a given path, there is for each relative position between the environment sensor 12 and the vehicle-side add-on element 34 knows the relative speed between the environment sensor 12 and the vehicle-side add-on element 34, as well as the location / orientation and the position of the vehicle-side add-on element 34 relative to the environment sensor 12.
- the computing unit 18 the actual position or orientation, ie the actual position and actual orientation of the environment sensor 12, as well as the actual relative speed, ie the actual relative speed between the vehicle-side add-on element 34 and the environment sensor 12, for each relative position determine between the vehicle-side add-on element 34 and environment sensor 12.
- the arithmetic unit 18 then averages the actual positions obtained to an averaged actual position or the arithmetic unit 18 averages the actual alignments obtained to an averaged actual alignment or the arithmetic unit 18 averages the actual relative speeds obtained to an averaged actual position.
- the computing unit 18 assigns the averaged actual position as the target position of the environmental sensor 12 or the averaged actual alignment as the target alignment of the environmental sensor 12 or the averaged actual relative speed between the environmental sensor 12 and the vehicle-side add-on element 34 as the target -Relative speed too.
- the advantage of a movement of the environment sensor 12 and the vehicle-side add-on element 34 is, among other things, that more and more different relative positions can be generated during the movement of the environment sensor 12 and the vehicle-side add-on element 34, and thereby greater accuracy when determining the target position or target position. Alignment or target relative speed can be achieved.
- FIG. 5 shows a further device 10 for determining a target position, target orientation and target relative speed of the environmental sensor 12.
- a further calibration object 36 located in the vicinity of the vehicle 14 is used to determine the target position or the target orientation or The nominal relative speed of the environmental sensor 12 is used.
- the further or additional calibration object 36 is a prominent point of a vehicle 38 driving ahead.
- the prominent point can, for example, be the license plate of the preceding vehicle Vehicle 38 be.
- the additional calibration object 36 can, however, also be a floor, a street sign, a lane marking or another distinctive object surrounding the vehicle 14.
- the accuracy of the calibration can be further increased, since the calibration object 36 can be used as an additional reference object for determining the target position, target orientation and target relative speed of the environmental sensor 12.
- the additional calibration object 36 is, for example, a prominent location of a vehicle 38 driving ahead
- the position (indicated by the coordinates xK, yK, zK) and the relative speed can be measured, for example, by means of a further environmental sensor 40 of the vehicle 14 can be determined between the additional calibration object 36 and the further environment sensor 40 (indicated by vK) and the data records obtained by the further environment sensor 40 can be used in addition to the data records obtained by the environment sensor 12 by means of the computing unit 18 to determine the target position, target orientation and Set relative speed for the environment sensor 12 can be used.
- the environment sensor 40 can also be a higher-level computing and receiving unit of the vehicle 14, which can exchange data bidirectionally with the environment sensor 12.
- the further environment sensor 40 is calibrated with regard to its own target position, target orientation and target relative speed with the aid of the target position, target orientation and target relative speed of the environment sensor 12 that have already been determined.
- the computing unit 18 can take into account, for example, the relative positions of the environmental sensors 12, 40, the relative orientations of the environmental sensors 12, 40 and the relative speeds determined by the environmental sensors 12, 40.
- FIG. 6 is a schematic representation of a flow chart of a method according to the invention for determining a Shows the target position, a target orientation or a target relative speed of an environmental sensor.
- the method begins at step 600.
- step 602 in which, for example, a first actual position, a first actual orientation and a first actual relative speed for the environment sensor, for example the environment sensor 12, are determined by means of the arithmetic unit 18.
- the environmental sensor 12 and / or the add-on element on the vehicle side is now moved.
- the vehicle-side add-on element (side mirror) 16 can be moved relative to the environment sensor 12.
- the environment sensor 12 can also be moved relative to the add-on element (A-pillar 30) on the vehicle.
- both the environment sensor 12 and the add-on element on the vehicle side (inner door handle) 34 are moved. Moving the environment sensor 12 and / or the add-on element on the vehicle side changes a first relative position present between the environment sensor 12 and the add-on element on the vehicle side to a second relative position.
- a second actual position, a second actual orientation and a second actual relative speed for the environment sensor 12 are determined, for example by means of the computing unit 18, in the second relative position between the vehicle-side add-on element and the environmental sensor 12.
- the first actual position and the second actual position are averaged to an averaged actual position (for example again by means of the arithmetic unit 18) and this averaged actual position is finally assigned to the target position of the environmental sensor 12.
- the first actual orientation and the second actual orientation are averaged to form an averaged actual orientation, and this averaged actual orientation is finally assigned to the target orientation of the environmental sensor 12.
- the first actual relative speed and the second actual relative speed are averaged to form an averaged actual relative speed, and this averaged actual relative speed is finally assigned to the setpoint relative speed.
- the method finally ends at step 614.
- FIG. 7 shows a variant of the method from FIG.
- the method of FIG. 7, like the method of FIG. 6, has steps 600 to 612.
- a target position of a further environment sensor for example environment sensor 40 from FIG. 5 is determined.
- a target alignment of the additional environmental sensor for example, environmental sensor 40
- a target relative speed of the further environmental sensor for example, environmental sensor 40
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019214544.2A DE102019214544B4 (de) | 2019-09-24 | 2019-09-24 | Verfahren und Vorrichtung zum Bestimmen einer Soll-Position eines Umgebungssensors eines Fahrzeugs |
| PCT/EP2020/076214 WO2021058409A1 (de) | 2019-09-24 | 2020-09-21 | Verfahren und vorrichtung zum bestimmen einer soll-position eines umgebungssensors eines fahrzeugs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4034906A1 true EP4034906A1 (de) | 2022-08-03 |
Family
ID=72613914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| EP20775851.7A Pending EP4034906A1 (de) | 2019-09-24 | 2020-09-21 | Verfahren und vorrichtung zum bestimmen einer soll-position eines umgebungssensors eines fahrzeugs |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12345800B2 (de) |
| EP (1) | EP4034906A1 (de) |
| CN (1) | CN114402218A (de) |
| DE (1) | DE102019214544B4 (de) |
| WO (1) | WO2021058409A1 (de) |
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| DE102020210345A1 (de) * | 2020-08-14 | 2022-02-17 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zum Ausbilden einer Sensoranordnung für ein Fahrzeug |
| US12122324B2 (en) | 2021-09-17 | 2024-10-22 | Magna Mirrors Of America, Inc. | Vehicular power door sensing and operating system |
| JP7707841B2 (ja) * | 2021-10-13 | 2025-07-15 | マツダ株式会社 | ドアミラー構造 |
| JP7707842B2 (ja) * | 2021-10-13 | 2025-07-15 | マツダ株式会社 | ドアミラー構造 |
| DE102023100734A1 (de) * | 2023-01-13 | 2024-07-18 | Bayerische Motoren Werke Aktiengesellschaft | Steuervorrichtung und steuerverfahren zum steuern eines betriebs eines umfeldsensors eines kraftfahrzeugs |
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-
2019
- 2019-09-24 DE DE102019214544.2A patent/DE102019214544B4/de active Active
-
2020
- 2020-09-21 CN CN202080066966.9A patent/CN114402218A/zh active Pending
- 2020-09-21 US US17/762,959 patent/US12345800B2/en active Active
- 2020-09-21 EP EP20775851.7A patent/EP4034906A1/de active Pending
- 2020-09-21 WO PCT/EP2020/076214 patent/WO2021058409A1/de not_active Ceased
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| Publication number | Publication date |
|---|---|
| US20220342066A1 (en) | 2022-10-27 |
| WO2021058409A1 (de) | 2021-04-01 |
| US12345800B2 (en) | 2025-07-01 |
| DE102019214544B4 (de) | 2022-04-28 |
| CN114402218A (zh) | 2022-04-26 |
| DE102019214544A1 (de) | 2021-03-25 |
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