EP4330082A1 - Procédé et dispositif de réglage de rétroviseurs extérieurs d'un véhicule - Google Patents
Procédé et dispositif de réglage de rétroviseurs extérieurs d'un véhiculeInfo
- Publication number
- EP4330082A1 EP4330082A1 EP22715124.8A EP22715124A EP4330082A1 EP 4330082 A1 EP4330082 A1 EP 4330082A1 EP 22715124 A EP22715124 A EP 22715124A EP 4330082 A1 EP4330082 A1 EP 4330082A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vehicle
- angle
- mirror
- angular position
- trim
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- B60R1/025—Rear-view mirror arrangements comprising special mechanical means for correcting the field of view in relation to particular driving conditions, e.g. change of lane; scanning mirrors
-
- 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
- B60R1/072—Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position by electrically powered actuators for adjusting the mirror relative to its housing
-
- 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
- B60R1/08—Rear-view mirror arrangements involving special optical features, e.g. avoiding blind spots, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors
- B60R1/083—Anti-glare mirrors, e.g. "day-night" mirrors
- B60R1/086—Anti-glare mirrors, e.g. "day-night" mirrors using a mirror angularly movable between a position of use and a non-glare position reflecting a dark field to the user, e.g. situated behind a transparent glass used as low-reflecting surface; Wedge-shaped mirrors
- B60R1/087—Anti-glare mirrors, e.g. "day-night" mirrors using a mirror angularly movable between a position of use and a non-glare position reflecting a dark field to the user, e.g. situated behind a transparent glass used as low-reflecting surface; Wedge-shaped mirrors with remote or automatic control means
Definitions
- the present invention claims the priority of French application 2104328 filed on 04.26.2021, the content of which (text, drawings and claims) is incorporated herein by reference.
- the invention relates to methods and devices for adjusting exterior mirrors of a vehicle, in particular of an autonomous vehicle.
- the exterior mirror of a vehicle uses one or more mirrors usually located on the two exterior sides of the vehicle. We commonly speak of left and right mirrors. Exterior mirrors are an important road safety feature as they allow, when properly adjusted, a driver to have a wide field of vision behind and to the side of the vehicle.
- Exterior mirrors are most often adjusted for driving the vehicle in a traffic lane, that is to say so that the driver can ensure that there is no other vehicle as soon as he wishes. changing lanes, for example.
- the mirrors are therefore adjusted for relatively distant vision.
- the mirror mirrors When the driver engages reverse gear with the intention of backing up, it is usual for the mirror mirrors to pivot down around axes so that the driver can have a visual check of any obstacles near the rear. of the vehicle.
- a silhouette of a vehicle combines both the appearance aesthetics of the vehicle body but also a set of technical characteristics such as the shape and dimensions of the chassis or the height of the body (ground clearance) or the diameter of the rims.
- Each vehicle silhouette therefore corresponds to a set of specific characteristics and therefore a particular angle of rotation which is usually calibrated (calibrated) under specific calibration conditions. Examples of calibration conditions are that the vehicle is unloaded, it has a particular ride height, and its tire inflation is nominal.
- calibrated the angle of rotation of the mirrors is memorized in a memory of the vehicle and each time the driver engages reverse gear the mirrors pivot downwards by an angle equal to the memorized angle of rotation.
- the angle of rotation is optimal when the vehicle is in its calibration conditions.
- these conditions are not always met when a driver engages reverse gear.
- the vehicle may be heavily loaded, the load may not be distributed in the vehicle or some tires may be underinflated.
- the problem to be solved is therefore to determine an angular position of the exterior mirrors when the vehicle is configured to move in reverse gear which takes into account the conditions of use of the vehicle at the time when this vehicle is configured to move in reverse gear.
- An object of the present invention is to improve the adjustment of exterior mirrors of a vehicle. Another object of the present invention is to improve road safety.
- the invention relates to a method for adjusting at least one exterior mirror of a vehicle, the method comprising the following steps:
- the angular position is obtained from the attitude angle and from a rotation angle determined from the silhouette of the vehicle.
- the angular position also depends on the sign of the trim angle.
- the angular position is equal to the difference between the angle of rotation and the trim angle if the sign of the trim angle is positive and to the difference between the rotation angle and the inverse of the attitude angle if the sign of the rotation angle is negative.
- the equipment comprises at least two trim sensors supplying body heights from which the trim angle is deduced.
- the equipment is a computer providing gyroscopic data from which the attitude angle is deduced.
- the vehicle is configured to indicate that it is about to move in reverse gear when the reverse gear of the vehicle is engaged.
- the invention relates to a device for adjusting at least one exterior mirror of a vehicle, the device comprising a memory associated with a processor configured for the implementation of the steps of the method according to the first aspect of the 'invention.
- the invention relates to a vehicle, for example of the automotive type, comprising a device as described above according to the second aspect of the invention.
- the invention relates to a computer program which comprises instructions adapted for the execution of the steps of the method according to the first aspect of the invention, this in particular when the computer program is executed by at least one processor.
- Such a computer program can use any programming language, and be in the form of source code, object code, or intermediate code between source code and object code, such as in a partially compiled form, or in any other desirable form.
- the invention relates to a computer-readable recording medium on which is recorded a computer program comprising instructions for the execution of the steps of the method according to the first aspect of the invention.
- the recording medium can be any entity or device capable of storing the program.
- the medium may comprise a storage means, such as a ROM memory, a CD-ROM or a ROM memory of the microelectronic circuit type, or even a magnetic recording means or a hard disk.
- this recording medium can also be a transmissible medium such as an electrical or optical signal, such a signal being able to be conveyed via an electrical or optical cable, by conventional or hertzian radio or by self-directed laser beam or by other ways.
- the computer program according to the invention can in particular be downloaded from an Internet-type network.
- the recording medium may be an integrated circuit in which the computer program is incorporated, the integrated circuit being adapted to execute or to be used in the execution of the method in question.
- FIG. 1 schematically illustrates a vehicle in nominal conditions of use, according to a particular embodiment of the present invention
- FIG. 2 schematically illustrates the vehicle of Figure 1 when a vehicle configuration for moving in reverse is detected, according to a particular embodiment of the present invention
- FIG. 3 schematically illustrates a vehicle comprising an exterior mirror when the front tires of this vehicle are under-inflated, according to a particular embodiment of the present invention
- FIG. 4 schematically illustrates the vehicle of Figure 2 when the driver of this vehicle engages reverse gear, according to a particular embodiment of the present invention
- FIG. 5 schematically illustrates a vehicle comprising an exterior mirror when the trunk of this vehicle is heavily loaded, according to a particular embodiment of the present invention
- FIG. 6 schematically illustrates the vehicle of Figure 5 when the driver of this vehicle engages reverse gear, according to a particular embodiment of the present invention
- FIG. 7 schematically illustrates a device for adjusting exterior mirrors of a vehicle configured to adjust at least one exterior mirror of the vehicle, according to a particular embodiment of the present invention
- FIG. 8 illustrates a flowchart of the different steps of a method for adjusting at least one exterior mirror of a vehicle, according to a particular embodiment of the present invention.
- FIGS. 1 to 8 A method and a device for adjusting exterior mirrors of a vehicle will now be described in the following with reference to FIGS. 1 to 8. The same elements are identified with the same reference signs throughout the description which go follow.
- a vehicle trim angle is obtained with respect to a plane of a reference frame, from on-board equipment of the vehicle.
- An angular position of at least one of the exterior mirrors of the vehicle is obtained with respect to said reference plane from the attitude angle and the silhouette of the vehicle.
- rotation means are activated to rotate a mirror of at least one exterior rear view mirror around an axis of the rear view mirror up to said angular position when a configuration of the vehicle is detected indicating that it is about to to move in reverse.
- the invention allows optimal adjustment of at least one rear-view mirror of the vehicle whatever the conditions of use of the vehicle because the mirror of at least one rear-view mirror of the vehicle pivots to a determined angular position which depends on the silhouette of the vehicle. vehicle and a particular trim angle of the vehicle with respect to a plane of a reference frame.
- This trim angle is special because it reflects the trim of the vehicle when the vehicle is about to move in reverse.
- the angular position is always determined in an optimal manner, thus making the adjustment of the exterior mirrors optimal in all circumstances.
- FIG. 1 schematically illustrates a vehicle 2 under nominal conditions of use, according to a particular embodiment of the present invention.
- the vehicle 2 comprises at least one mirror RE.
- a mirror RE is typically positioned on the left and on the right of the vehicle. But as a variant, several mirrors RE can be positioned on the left and several on the right.
- a plane (xv, yv) local to the mirror RE is represented here for the purpose of explaining the invention in all its details.
- the origin of this frame of reference is for example located at the center of the mirror of this rear-view mirror RE, the axis xv passing through this center and being perpendicular to the mirror.
- the angle of view of the mirror of the rear-view mirror RE of Figure 1 is here delimited by two axes centered around the axis xv.
- a rearview mirror RE comprises a mirror that can pivot around an axis upwards or downwards when this axis is driven by rotation means (not shown) such as a motor for example.
- This motor can be controlled by a control unit which delivers an angular position f. The motor then rotates the axis downwards so that the axis perpendicular to the mirror reaches a particular angular position f.
- the vehicle 2 In its nominal conditions of use of the vehicle, the vehicle 2, as shown in Figure 1, is either stationary or moving forward on a traffic lane.
- the RE rear-view mirror is adjusted so that the driver has a relatively distant view of the rear of the vehicle in order to ensure that there are no other vehicles if he wishes to change traffic lanes, for example.
- a trim angle xp defined between the longitudinal axis of the vehicle and the axis x of the frame of reference (x,y), called the reference axis, is obtained from on-board equipment of the vehicle 2.
- an angular position f of at least one of the exterior mirrors RE of the vehicle 2 is obtained from the trim angle xp and from a silhouette of the vehicle 2.
- the silhouette of the vehicle 2 makes it possible to determine an angle of rotation Q of the mirror of a rear-view mirror RE applied to any vehicle of this silhouette when the vehicle 2 is about to move in reverse.
- This angle of rotation Q can be determined theoretically depending, for example, on technical considerations of the silhouette such as the ride height, the diameter of the rims, the shape of the bodywork, etc.
- a configuration of the vehicle 2 indicating that it is about to move in reverse is detected.
- a configuration of the vehicle 2 indicates that it is about to move in reverse gear when the reverse gear is engaged.
- a configuration of the vehicle 2 indicating that it is about to move in reverse when a configuration of the vehicle 2 indicating that it is about to move in reverse is detected, means are activated to pivot a mirror of at least one exterior mirror RE around an axis of the mirror up to the angular position are activated.
- the angular position f is obtained from the attitude angle y and the angle of rotation Q.
- the equipment comprises at least one trim sensor providing body heights from which the trim angle is deduced.
- a ride height sensor is a ride height sensor usually mounted on each half-frame of a vehicle's suspension to gauge the height of the vehicle's lower body.
- a body height H1 can be obtained by a level sensor mounted on the front axle and a body height H2 can be obtained by a level sensor mounted on the rear axle as shown in Figure 1.
- the equipment is a computer supplying gyroscopic data from which the attitude angle y is deduced.
- these gyroscopic data come from a computer dedicated to controlling the shock absorbers of vehicle 2.
- the angular position f of at least one of the exterior mirrors RE of the vehicle 2 is obtained according to the sign of the trim angle.
- FIG. 2 schematically illustrates the vehicle of Figure 1 when a configuration of the vehicle 2 to move in reverse is detected, according to a particular embodiment of the present invention.
- the body heights H1 and H2 are here equal and the trim angle is zero.
- the angular position f is then equal to the angle of rotation Q determined from the silhouette of vehicle 2.
- FIG. 3 schematically illustrates a vehicle 2 comprising an exterior mirror when the tires of this vehicle are under-inflated according to a particular embodiment of the present invention.
- Ride height H1 is lower than ride height H2.
- the trim angle y ⁇ is then negative (counterclockwise) and the rotation angle Q is positive.
- FIG. 5 schematically illustrates a vehicle 2 comprising an exterior mirror when the trunk of this vehicle is heavily loaded, according to a particular embodiment of the present invention.
- Ride height H1 is greater than ride height H2.
- the attitude angle xpl is positive (counterclockwise) and the rotation angle Q is positive.
- FIG. 7 schematically illustrates a device 3 configured for, according to a particular and non-limiting exemplary embodiment of the present invention.
- the device 3 corresponds for example to a device on board the vehicle 2, for example a computer.
- the device 7 is for example configured for the implementation of the operations described with regard to FIGS. 1 to 6 and/or of the steps of the method described with regard to FIG. 8.
- Examples of such a device 3 comprise, without being limited, on-board electronic equipment such as a vehicle's on-board computer or an electronic computer such as an ECU (“Electronic Control Unit”).
- the elements of device 3, individually or in combination, can be integrated in a single integrated circuit, in several integrated circuits, and/or in discrete components.
- the device 3 can be made in the form of electronic circuits or software (or computer) modules or else a combination of electronic circuits and software modules.
- the device 3 comprises one (or more) processor(s) 30 configured to execute instructions for carrying out the steps of the method and/or for executing the instructions of the software or software embedded in the device 3.
- the processor 30 can include integrated memory, an input/output interface, and various circuits known to those skilled in the art.
- the device 3 further comprises at least one memory 31 corresponding for example to a volatile and/or non-volatile memory and/or comprises a memory storage device which can comprise volatile memory and/or non-volatile, such as EEPROM, ROM, PROM, RAM, DRAM, SRAM, flash, magnetic or optical disk.
- the computer code of the onboard software or software comprising the instructions to be loaded and executed by the processor is for example stored on the memory 31.
- the device 3 is coupled in communication with other similar devices or systems and/or with communication devices, for example a TCU (from the English “Telematic Control Unit” or in French “Unotti Telematics Control”), for example via a communication bus or through dedicated input/output ports.
- a TCU from the English “Telematic Control Unit” or in French “Unotti Telematics Control”
- communication bus for example via a communication bus or through dedicated input/output ports.
- the device 3 comprises a block 32 of interface elements for communicating with external devices, for example a remote server or the “cloud”, other nodes of the ad hoc network.
- Block 32 interface elements include one or more of the following interfaces:
- radiofrequency interface for example of the Bluetooth® or Wi-Fi® type, LTE (from English “Long-Term Evolution” or in French “Evolution à long terme”), LTE-Advanced (or in French LTE-advanced );
- USB interface from the English “Universal Serial Bus” or “Universal Serial Bus” in French);
- Data are for example loaded to the device 3 via the block 32 interface using a Wi-Fi® network such as according to IEEE 802.11, an ITS G5 network based on IEEE 802.11 p or a mobile network such as a 4G network (or LTE Advanced according to 3GPP release 10 - version 10) or 5G, in particular an LTE-V2X network.
- a Wi-Fi® network such as according to IEEE 802.11, an ITS G5 network based on IEEE 802.11 p or a mobile network such as a 4G network (or LTE Advanced according to 3GPP release 10 - version 10) or 5G, in particular an LTE-V2X network.
- the device 3 comprises a communication interface 33 which makes it possible to establish communication with other devices via a communication channel 34.
- the device 3 can thus establish a communication with on-board attitude sensors of the vehicle 2 in order to be able to receive body heights H1 and H2 or with a computer dedicated to controlling the shock absorbers of the vehicle in order to be able to receive gyroscopic information. A trim angle is then determined by the device 3 from these body heights or these gyroscopic data.
- the communication interface 33 corresponds for example to a transmitter configured to transmit and receive information and/or data via the communication channel 34.
- the communication interface 33 corresponds for example to a CAN-type wired network (of the 'English “Controller Area Network” or in French “Réseau de Contrôliv”), CAN FD (from English “Controller Area Network Flexible Data-Rate” or in French “Réseau de Contrôliv à Flow de Data Flexible”), FlexRay ( standardized by ISO 17458) or Ethernet (standardized by ISO/IEC 802-3).
- CAN-type wired network of the 'English “Controller Area Network” or in French “Réseau de Contrôlivities”
- CAN FD from English "Controller Area Network Flexible Data-Rate” or in French “Réseau de Contrôlitis à Flow de Data Flexible
- FlexRay standardized by ISO 17458
- Ethernet standardized by ISO/IEC 802-3
- the device 3 can provide output signals to one or more external devices, such as a display screen 35, one or more loudspeakers 36 and/or other peripherals 37 (projection system) respectively via output interfaces 38, 39 and 40.
- one or the other of the external devices is integrated into the device 3.
- the display screen 36 corresponds for example to a screen, touch or not.
- FIG. 8 illustrates a flowchart of the different steps of a method for adjusting at least one exterior mirror of a vehicle, according to a particular and non-limiting embodiment of the present invention.
- the method is for example implemented by the device 3 of Figure 7.
- a trim angle xp defined between the longitudinal axis of the vehicle and the axis xv of the plane (xv,yv), called the reference axis, is obtained from on-board equipment of the vehicle.
- an angular position f of at least one of the exterior mirrors RE of the vehicle is obtained from the trim angle xp and from a silhouette of the vehicle.
- a configuration of the vehicle indicating that it is about to move in reverse is detected.
- rotation means for pivoting a mirror of at least one exterior mirror RE around an axis of the mirror up to the angular position are activated.
- the invention is not limited to the exemplary embodiments described above but extends to a method for adjusting at least one exterior mirror of a vehicle which would include secondary steps without thereby departing from the scope of the present invention. The same would apply to a device configured for the implementation of such a method.
- the invention also relates to a vehicle, for example an automobile or more generally an autonomous land motor vehicle, comprising the device 3 of FIG. 7.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Mechanical Engineering (AREA)
- Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2104328A FR3122132B1 (fr) | 2021-04-26 | 2021-04-26 | Procédé et dispositif de réglage de rétroviseurs extérieurs d'un véhicule |
| PCT/FR2022/050502 WO2022229529A1 (fr) | 2021-04-26 | 2022-03-18 | Procédé et dispositif de réglage de rétroviseurs extérieurs d'un véhicule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4330082A1 true EP4330082A1 (fr) | 2024-03-06 |
Family
ID=77180098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22715124.8A Withdrawn EP4330082A1 (fr) | 2021-04-26 | 2022-03-18 | Procédé et dispositif de réglage de rétroviseurs extérieurs d'un véhicule |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4330082A1 (fr) |
| FR (1) | FR3122132B1 (fr) |
| WO (1) | WO2022229529A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118288902A (zh) * | 2024-06-03 | 2024-07-05 | 比亚迪股份有限公司 | 后视镜调节方法、控制装置、电子装置、车辆及存储介质 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2041311A1 (de) | 1970-08-20 | 1972-03-02 | Boehringer & Co | Formrahmen fuer die Herstellung von Platten aus Beton u. dgl. |
| DE10313569A1 (de) * | 2003-03-26 | 2004-10-07 | Schefenacker Vision Systems Germany Gmbh & Co. Kg | Rückblickspiegel für Fahrzeuge, vorzugsweise Kraftfahrzeuge |
| CN1826245A (zh) * | 2003-06-19 | 2006-08-30 | 祖海尔·阿格雷斯特 | 用于车辆的反射镜自动调节系统和方法 |
| WO2020182307A1 (fr) * | 2019-03-13 | 2020-09-17 | Toyota Motor Europe | Réglage de rétroviseur de véhicule automatisé |
-
2021
- 2021-04-26 FR FR2104328A patent/FR3122132B1/fr active Active
-
2022
- 2022-03-18 EP EP22715124.8A patent/EP4330082A1/fr not_active Withdrawn
- 2022-03-18 WO PCT/FR2022/050502 patent/WO2022229529A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FR3122132B1 (fr) | 2023-03-10 |
| WO2022229529A1 (fr) | 2022-11-03 |
| FR3122132A1 (fr) | 2022-10-28 |
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