EP3860895A1 - Procede de detection preventive du mal des transports et vehicule mettant en oeuvre ledit procede - Google Patents
Procede de detection preventive du mal des transports et vehicule mettant en oeuvre ledit procedeInfo
- Publication number
- EP3860895A1 EP3860895A1 EP19791323.9A EP19791323A EP3860895A1 EP 3860895 A1 EP3860895 A1 EP 3860895A1 EP 19791323 A EP19791323 A EP 19791323A EP 3860895 A1 EP3860895 A1 EP 3860895A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vehicle
- sensors
- occupants
- movements
- motion sickness
- 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- Withdrawn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
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/08—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to drivers or passengers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
- B60W40/08—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to drivers or passengers
- B60W2040/0872—Driver physiology
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
- B60W2520/105—Longitudinal acceleration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/12—Lateral speed
- B60W2520/125—Lateral acceleration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/14—Yaw
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/16—Pitch
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/18—Roll
Definitions
- the invention generally relates to methods and systems for combating motion sickness and relates more particularly to a method for the preventive detection of motion sickness aimed at anticipating the appearance of the first symptoms of motion sickness for an occupant of 'a vehicle, in particular a motor vehicle.
- a first publication (Zikovitz and Harris, (1999): “Head tilt during driving. Ergonomics”, 42: 5, 740-746) describes the head movement strategies of the occupants of a vehicle according to whether they are drivers or passengers, when cornering the vehicle for different radii of curvature and at different vehicle speeds.
- a greater sensitivity to motion sickness is observed in an occupant who undergoes (passively) head movements imposed by those of an active driver (via a paired helmet device making it possible to mechanically couple the head movements of a pilot and of his passenger (Roldnick and Lubow, 1991) or in a real car, when the head of a passenger tilts in the opposite direction to the turn (centrifugal force effect; this occurs during passive behavior (Wada and Yoshida, 2016).
- This latest study also shows a greater sensitivity to motion sickness when participants are asked to keep their eyes closed compared to keeping their eyes open, which also highlights the importance of visual anticipation of movement as a factor making it possible to anticipate the onset of motion sickness.
- Document CN105607742A is known, a method based on behavioral measurements of movement of the occupants of the vehicle using virtual reality technology.
- the method includes the steps of sensor detection of the movement of the head of an occupant of the vehicle, of signal processing, of dynamic control of the virtual image and of its display on screen (such as, for example, on the dashboard ).
- Also known from document JP2017071369A is a system for detecting the movement of the vehicle based on the analysis of the dynamics and behavior of the vehicle, of its environment (such as the type of road, etc.) intended to target and prevent critical areas. in terms of risk of developing motion sickness, or following a non-road course pre-established nausea.
- Said system uses a measuring box or a set of sensors arranged in the passenger compartment.
- the invention therefore aims in particular to improve these solutions by taking into account the two types of measures and by taking into account all of the postural movements of the occupants' bodies: the human body can be broken down into several segments: head, trunk, seat etc. The evolution of these movements can be considered for each of these segments separately (simple indicators, unitary marker) and / or combined (complex coordination, more general marker) so as to identify a postural "signature" specific to the disease. transports.
- the present invention can also incorporate an indicator linked to eye movements, such as a simple marker for motion sickness and / or associated with other postural markers.
- the present invention aims to anticipate motion sickness on the basis of a simultaneous coupling of movement measurements: human movements and vehicle dynamics, and by using several postural markers.
- a method of preventive detection of motion sickness inside a vehicle comprising a passenger compartment capable of receiving occupants, said method consisting of: - In a first step, to detect the postural movements of the occupants by means of a first set of sensors on board the vehicle and / or arranged on the occupants of the vehicle;
- a third step comparing the motion detection signals delivered by the first set of sensors with the motion detection signals delivered by the second set of sensors and establishing a diagnosis as a function of the result of the comparison;
- a fourth step to restore the diagnosis established in the third step to the occupants of the vehicle via a sensory interface to inform them of their degree of susceptibility to trigger motion sickness or, alternatively or even in combination, to authorize the triggering of '' a countermeasure solution.
- the third step it consists in measuring the postural differences of the occupants of the vehicle with respect to the movements of the vehicle.
- it consists in measuring the amplitudes and the directions of the movements of the occupants and of the vehicle.
- Another subject of the invention is a vehicle implementing the method as described above, said vehicle or at least one occupant of the vehicle, carrying a computer implementing an algorithm for synthesizing all the movements making it possible to analyze and process the movements of the occupants with regard to the movements of the car, in which the first set of sensors includes one or more sensors chosen from: a video camera, pressure sensors or pressure layers under the seat, gravitational-inertial units , movement sensors on the belt, eye movement sensors, and in which the second set of sensors comprises one or more sensors chosen from: accelerometers, gyroscopes, gravito-inertial units capable of detecting vibrations, and / or accelerations and decelerations, and / or rotations of the vehicle.
- the first set of sensors includes one or more sensors chosen from: a video camera, pressure sensors or pressure layers under the seat, gravitational-inertial units , movement sensors on the belt, eye movement sensors
- the second set of sensors comprises one or more sensors chosen from: accelerometers, gyroscopes, gravit
- the sensors of the first set of sensors are carried by the occupants of the vehicle.
- the sensors of the second set of sensors are sensors, dedicated to the components of the vehicle, already pre-existing in the vehicle.
- the sensors of the first set of sensors are chosen from different technologies to provide redundancy in the information of movements of the occupants of the vehicle and to obtain a finer postural signature of the occupants of the vehicle.
- the sensory interface is of the visual or sound or haptic type or a combination of two of the three types of interface or of the three types of interfaces.
- the vehicle as described above is for example an autonomous vehicle.
- FIG. 2 a diagram of a motor vehicle according to the invention carrying a system implementing the method according to the invention.
- the vehicle is of the automobile type.
- the invention is not limited to this type of vehicle. It concerns in fact any type of vehicle comprising a passenger compartment intended to receive occupants transported by the vehicle. Consequently, it relates just as well to land vehicles, as river (or maritime) vehicles, and air or space vehicles.
- This method consists, in a first step 10, of detecting the postural movements of the occupants by means of a first set of sensor (s) on board the vehicle and / or disposed on the occupants.
- This first set of sensor (s) exploits technologies making it possible to detect human movements in the passenger compartment: detection by video camera, pressure sensors or pressure layers under the seat, gravitational-inertial power stations, belt movement, eye movement sensors, etc.
- the method consists, in another step 20, of detecting the movements of the vehicle: vibrations, accelerations / decelerations, rotations, etc., by means of a second set of on-board sensor (s). ) in the vehicle (sensors specific to vehicle components or on-board external sensors).
- the signals delivered by the sensors pass via the vehicle communication bus, for example the CAN bus, or are transmitted to one or more processors of the vehicle by wave and / or by wire other than the CAN bus.
- the method consists in comparing the motion detection signals delivered by the first and second sets of motion sensors (human and vehicle). These signals are received and processed by a processor implementing a signal processing algorithm capable of delivering, from the results of this comparison, a level of risk of developing motion sickness.
- This level of risk is established on the basis of the occupants' posture deviations from the current or future movements of the vehicle (time synchronization: vehicle and body movements at the same time vs time-shifted) as well as the amplitudes of movements and their directions. These differences are analyzed in step 30 to in particular determine whether they are in phase or phase shift, in particular in phase opposition, between the movements of the occupants and the movements of the vehicle.
- step 30 The result of the treatment carried out by the algorithm of step 30 makes it possible to establish a diagnosis.
- This diagnosis is returned to step 40, to the occupants via an interface (sound, haptic and / or visual) to inform them of their degree of susceptibility to trigger motion sickness or in a way alternative or even combined, to authorize the triggering of a countermeasure solution.
- the algorithm therefore performs a diagnosis of the state of the occupants (based on postural anticipations in the face of future vehicle movements) and defines whether the occupants are likely to trigger motion sickness in the next few minutes.
- FIG. 2 schematically illustrates a motor vehicle VA implementing the method according to the invention as described above and represented in an XY reference system.
- the VA vehicle includes CO sensors (first set of sensors) for recording the movements of the occupants OV in the cockpit H of the VA vehicle.
- CO sensors first set of sensors
- These OV sensors use technologies to detect the movements of OV occupants in the passenger compartment H. They can be deported or embarked on OV occupants.
- the remote sensors are for example: a video camera, Near-Red-Red, Time-Of-Flight, pressure sensors or pressure sheets under the seat, motion sensors on the belt, etc.
- the on-board sensors are for example: motion control units ie. gravito-inertial units, gyroscope, accelerometer, etc.
- the VA vehicle also includes CV sensors (second set of sensors) for recording the movements of the VA vehicle: accelerometers, gyroscopes, gravity-inertial units, etc. embedded in one or more computers in the VA vehicle, or connected to external devices.
- CV sensors second set of sensors
- the VA vehicle includes a CP computer (the computer can be installed on the occupant) implementing the AS algorithm which synthesizes all the movements making it possible to analyze and process the movements of the OV occupants with regard to the movements of the VA car and to define the state of the OV occupants on the basis of the identification of a “postural signature” of motion sickness.
- the AS algorithm is capable of establishing a diagnosis of OV occupant susceptibility to trigger motion sickness.
- the VA vehicle has an HMI man / machine interface capable to restore to the OV occupants of the VA vehicle, a diagnosis carried out by the AS algorithm on their state with regard to their susceptibility to trigger motion sickness (example: visual display, sound signal, haptic, combination of several modalities, etc. ) and / or enabling a motion sickness countermeasure device to be activated.
- HMI man / machine interface capable to restore to the OV occupants of the VA vehicle, a diagnosis carried out by the AS algorithm on their state with regard to their susceptibility to trigger motion sickness (example: visual display, sound signal, haptic, combination of several modalities, etc. ) and / or enabling a motion sickness countermeasure device to be activated.
- CO sensors of different technologies can be used to provide some redundancy in the detection of OV occupant movements in order to define a finer postural signature, characteristic of motion sickness, based on the evolution of several postural behavioral indicators.
- the invention which has a very pragmatic basis, calls for simple, easily accessible measures (vehicle dynamics and postural behavior of the occupants), aimed at highlighting the risk of onset symptoms associated with motion sickness.
- vehicle dynamics and postural behavior of the occupants aimed at highlighting the risk of onset symptoms associated with motion sickness.
- the method described in this invention uses simple behavioral principles that are not invasive for the occupants.
- customizable functionalities in terms of restitution of the diagnosis established by the treatment algorithm can be envisaged (visual, sound, haptic or multimodal).
- This invention fits particularly well in the long term since its development fits perfectly into the problems of motion sickness and particularly with regard to the new ways of using the car prompted by the development of the autonomous vehicle (drivers will become concerned by motion sickness: more than 90% of vehicle occupants will now be affected).
- This invention can also be applied to other fields of application than that of the automobile because it can be implemented in all modes of transport with passenger compartment, likely to cause motion sickness (car, bus, train , boat, plane ).
- the proposed solution constitutes a promising diagnostic tool to highlight the risk of occurrence of symptoms of motion sickness and to propose adapted countermeasures.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mathematical Physics (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Motorcycle And Bicycle Frame (AREA)
- User Interface Of Digital Computer (AREA)
- Air Bags (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1859241A FR3086911B1 (fr) | 2018-10-05 | 2018-10-05 | Procede de detection preventive du mal des transports et vehicule mettant en œuvre ledit procede |
| PCT/FR2019/052217 WO2020070407A1 (fr) | 2018-10-05 | 2019-09-23 | Procede de detection preventive du mal des transports et vehicule mettant en œuvre ledit procede |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3860895A1 true EP3860895A1 (fr) | 2021-08-11 |
Family
ID=65244143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19791323.9A Withdrawn EP3860895A1 (fr) | 2018-10-05 | 2019-09-23 | Procede de detection preventive du mal des transports et vehicule mettant en oeuvre ledit procede |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3860895A1 (fr) |
| FR (1) | FR3086911B1 (fr) |
| WO (1) | WO2020070407A1 (fr) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10156219C1 (de) * | 2001-11-15 | 2003-08-14 | Daimler Chrysler Ag | Verfahren und Vorrichtung zur Reduzierung von Kinetose-Störungen |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6414005B2 (ja) | 2015-10-09 | 2018-10-31 | トヨタ自動車株式会社 | 車両用制御装置 |
| EP3167927B1 (fr) * | 2015-11-10 | 2019-06-12 | Bayerische Motoren Werke Aktiengesellschaft | Système et procédé pour réduire la cinétose d'un passager de véhicule |
| CN105607742A (zh) | 2016-01-20 | 2016-05-25 | 陈鹏 | 一种基于虚拟现实技术避免晕车的方法 |
| DE102016204635A1 (de) * | 2016-03-21 | 2017-09-21 | Ford Global Technologies, Llc | Verfahren und Vorrichtung zum Vermeiden oder Abmildern von Reiseübelkeit in einem Fahrzeug |
| US9862312B2 (en) * | 2016-04-06 | 2018-01-09 | The Regents Of The University Of Michigan | Universal motion sickness countermeasure system |
| US10107635B2 (en) * | 2016-08-19 | 2018-10-23 | Waymo Llc | Method and system for determining and dynamically updating a route and driving style for passenger comfort |
-
2018
- 2018-10-05 FR FR1859241A patent/FR3086911B1/fr active Active
-
2019
- 2019-09-23 WO PCT/FR2019/052217 patent/WO2020070407A1/fr not_active Ceased
- 2019-09-23 EP EP19791323.9A patent/EP3860895A1/fr not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10156219C1 (de) * | 2001-11-15 | 2003-08-14 | Daimler Chrysler Ag | Verfahren und Vorrichtung zur Reduzierung von Kinetose-Störungen |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020070407A1 (fr) | 2020-04-09 |
| FR3086911A1 (fr) | 2020-04-10 |
| FR3086911B1 (fr) | 2020-09-25 |
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