Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
  • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
  • B60C23/02—Signalling devices actuated by tyre pressure
  • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
  • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
  • B60C23/0422—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
  • B60C23/0433—Radio signals
  • B60C23/0447—Wheel or tyre mounted circuits
  • B60C23/0455—Transmission control of wireless signals
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
  • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
  • B60C23/02—Signalling devices actuated by tyre pressure
  • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
  • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
  • B60C23/0479—Communicating with external units being not part of the vehicle, e.g. tools for diagnostic, mobile phones, electronic keys or service stations
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
  • B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
  • B60K28/02—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver
  • B60K28/06—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to incapacity of driver
• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
  • G07C5/00—Registering or indicating the working of vehicles
  • G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
  • G07C5/00—Registering or indicating the working of vehicles
  • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
  • G07C5/0808—Diagnosing performance data
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L67/00—Network arrangements or protocols for supporting network services or applications
  • H04L67/01—Protocols
  • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
  • H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L67/00—Network arrangements or protocols for supporting network services or applications
  • H04L67/50—Network services
  • H04L67/75—Indicating network or usage conditions on the user display
• • 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
  • B60W2540/00—Input parameters relating to occupants
  • B60W2540/22—Psychological state; Stress level or workload
• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
  • G07C2205/00—Indexing scheme relating to group G07C5/00
  • G07C2205/02—Indexing scheme relating to group G07C5/00 using a vehicle scan tool
• • G—PHYSICS
  • G08—SIGNALLING
  • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
  • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
  • G08B21/02—Alarms for ensuring the safety of persons
  • G08B21/06—Alarms for ensuring the safety of persons indicating a condition of sleep, e.g. anti-dozing alarms

Definitions

• the present invention relates to the processing of various parameters of a motor vehicle by a nomadic device type ordiphone, and more particularly the data processing for determining a state of operation of the vehicle from said parameters.
• ordiphone according to the official terminology in France (see the text n ° 70 of the JORF n ° 0300 of December 27, 2009) is the contraction of the terms computer and telephone and designates the new generations of telephone, also commonly called “smartphone” , also allowing access to the internet, taking pictures, videos, ... all usually served by a fairly large screen color and good resolution.
• Motor vehicles generally have a screen, or graphical interface (dashboard), which must allow the display, by lights, pictograms or specific dials, of different functions and states of the vehicle, including functions of alert in case of malfunction of the vehicle or one of its organs or subassembly.
• the dashboard may include a warning light that comes on when one of the wheels is deflated.
• a dashboard more evolved (so expensive and complex) to indicate which of the wheels is deflated. he can it also seems interesting to have the real or estimated pressure of each tire, which requires a specific graphical interface, or at least a consequent layout of most dashboards.
• on-board computers in motor vehicles have limited computing capabilities optimized for current uses, but which are insufficient for certain driving assistance applications requiring image processing or complex signal processing. .
• certain warning systems or devices may become, by regulation, mandatory, which may require the adaptation of the existing vehicle fleet, which is difficult and expensive.
• the present invention aims to solve the problems previously referred to and thus proposes a device for determining a state of operation of a motor vehicle from vehicle data available on the CAN network of the vehicle, said device comprising a computer for a mathematical treatment said data for determining the state of operation of the vehicle, characterized in that the computer is hosted by a computer, a specific application of data processing by said calculator being implemented in the ordiphone, the recovery of data by the ordiphone from the CAN being performed by a link ilai re or radio link, and that the ordiphone has a visualization, through its graphical interface, the operating state of the vehicle.
• the principle of the invention is therefore based mainly on a delegation of computing means to the ordiphone, from the vehicle parameters available on the CAN network.
• the device comprises an alert level related to a specific state of operation of the vehicle, the triggering device, when the alert level is reached, a sound signal and / or light on the graphical interface of the ordiphone .
• the operating state of the vehicle is the pressure of each tire. Therefore, it is particularly advantageous to trigger the alert level when the specific operating state is a tire pressure lower than a threshold value.
• the device uses at least one data from one of the sensors of the ordiphone, to determine a state of operation of the vehicle.
• the data coming from one of the sensors of the ordiphone is the state of hypovigilance obtained from a digital processing of the driver's images substantially face, the images being provided by the camera of the 'ordiphone.
• the present invention also relates to a method for determining the operating state of a vehicle, characterized in that it comprises the following steps: implement an application for calculating the operating status of a vehicle according to data on a smartphone,
• the operating state of the vehicle is the pressure of a tire.
• FIG. 1 is a block diagram of the implementation of the present invention
• FIG. 2 is a diagrammatic view of a device equipped with the present invention
• FIG. 3 is an enlarged representation of the graphical interface of the ordiphone for the present invention.
• the computation capabilities of an ordiphone are used to monitor tire pressure by an indirect method by processing the signal corresponding to the speed of the wheels.
• Figure 1 shows schematically the process of producing a device for determining an operating state of a motor vehicle, in this case the determination of the tire pressure according to the present invention. This process has three subsets:
• a tire pressure calculation method 12 leads to the development of a model and the writing of a program in a language Matlab / Simulink type programming.
• This program is integrated in a specific dedicated application 14, in different languages corresponding to the different programming languages of the computers.
• the application 14 is then implemented in an ordiphone, for example by downloading, via a specific action of a user 18, and thus constitutes a program 16 in the ordiphone.
• the subassembly 20 comprises, from the vehicle 22, the acquisition of 24 operating data of the vehicle and their transmission on the CAN network 26 of the vehicle.
• Transmission means 28 of these data for example by a bluetooth ® radio technology, from the CAN network, complete this subset.
• a specific protocol allows the transfer of data to the subset 30.
• the latter thus comprises a receiver 32 of the signals coming from the transmitter 28.
• the data relating to these signals are used by a computer 34 using the program 16 and the calculation method 12 for developing the pressure state P A VD, PAVG, PARD, PARG of the four tires, and the restitution of this calculation on the graphical interface 36 of the ordiphone.
• the graphical interface 36 of an ordiphone 38 shows the vehicle 22 in a diagrammatic three-quarter view, where the representation of the wheels has been highlighted with the indication of the deviation between the calculated pressure and the recommended pressure.
• the front right wheel has insufficient pressure since it is 0.5 bar below the recommended level.
• the contrasting representation of the wheel, as well as a specific display of the relative pressure level allows the driver or the person looking at the screen of the smartphone, to be warned of this deficiency.
• a message can also be provided according to the nature and the occurrence of this difference: puncture or insufficient pressure.
• the present invention is not limited to the calculation of tire pressure by indirect method, and applies to many other determinations of a state or a parameter of operation of the vehicle, for which the calculation of the alert is transferred to the processor or calculator of the ordiphone. These include calculations of vehicle behavior, trajectory and course compliance.
• the ordiphone can provide, by the sensors it includes, additional information to improve calculations or to propose other functions.
• This can be for example the use of the gyroscope, the accelerometer, see the integrated camera as visualization of the front range, which can be used for the collision detection, the detection of change of lane, in coupling this information with the vehicle data.
• the use of the camera of the ordiphone, when the latter has, in a previously defined position (fixed support at the windshield for example) also allows to take advantage of the computing power of the processor of the ordiphone for image processing.
• the control of the waking state of the driver by directing the camera towards the driver, an image processing application for determining a parameter specific to the waking state of the driver. driver. This parameter can be based on the number and / or duration of eyelid blinks, head movements, ...
• This parameter can then be correlated and associated with vehicle operating parameters, such as speed, steering angles, ... to determine whether the driver should be alerted of detected hypovigilance.
• vehicle operating parameters such as speed, steering angles, ...
• the expression "operational state of the vehicle” must then be understood as integrating the driver's ability to drive the vehicle, at least as regards his state of alertness, which is therefore an integral part of the parameters of the vehicle. operation of the vehicle.
• the image processing by a processor located in the immediate vicinity of the sensor that represents the camera makes it possible to optimize the calculation times.
• the transmission of information from the CAN network of the vehicle to the computer can be carried out by a fiber link.
• the present invention makes it possible to improve:
• the present invention also provides for the driver, but also for the passengers of the vehicle, a nomadic interface of understanding embedded systems.
• the present invention it is then possible to have, on his smartphone, an application for calculating and returning an operating state of a vehicle, which may not be its own vehicle, such as for example the inflation state of the tires. It is sufficient that the person and his smartphone are on board a vehicle whose CAN has the necessary information for calculation. For example, it is possible for a passenger sitting on the 3rd row of a vehicle to know the tire inflation status of the vehicle in which he sits.

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• Engineering & Computer Science (AREA)
• Computer Networks & Wireless Communication (AREA)
• Mechanical Engineering (AREA)
• Signal Processing (AREA)
• General Physics & Mathematics (AREA)
• Physics & Mathematics (AREA)
• Health & Medical Sciences (AREA)
• Medical Informatics (AREA)
• General Health & Medical Sciences (AREA)
• Computing Systems (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Transportation (AREA)
• Measuring Fluid Pressure (AREA)
• Traffic Control Systems (AREA)
• Emergency Alarm Devices (AREA)

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• 2012
  • 2012-02-06 FR FR1251090A patent/FR2986642B1/fr not_active Expired - Fee Related
• 2013
  • 2013-02-05 US US14/376,889 patent/US10987979B2/en active Active
  • 2013-02-05 EP EP13702243.0A patent/EP2812885A1/fr not_active Withdrawn
  • 2013-02-05 JP JP2014555253A patent/JP6637236B2/ja not_active Expired - Fee Related
  • 2013-02-05 WO PCT/EP2013/052243 patent/WO2013117545A1/fr active Application Filing
  • 2013-02-05 KR KR1020147024664A patent/KR20140133544A/ko not_active Application Discontinuation

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