WO2019175485A1 - Method for estimating a range of a vehicle - Google Patents
Method for estimating a range of a vehicle Download PDFInfo
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- WO2019175485A1 WO2019175485A1 PCT/FR2019/050308 FR2019050308W WO2019175485A1 WO 2019175485 A1 WO2019175485 A1 WO 2019175485A1 FR 2019050308 W FR2019050308 W FR 2019050308W WO 2019175485 A1 WO2019175485 A1 WO 2019175485A1
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- WIPO (PCT)
- Prior art keywords
- value
- vehicle
- driver
- driving style
- estimating
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000004364 calculation method Methods 0.000 claims description 11
- 230000007613 environmental effect Effects 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
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- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
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- 238000007619 statistical method Methods 0.000 description 2
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- 230000009897 systematic effect Effects 0.000 description 1
Classifications
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- 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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/182—Selecting between different operative modes, e.g. comfort and performance modes
-
- 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
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
- B60K35/28—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
-
- 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
- B60W40/09—Driving style or behaviour
-
- 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
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/082—Selecting or switching between different modes of propelling
-
- 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
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/085—Changing the parameters of the control units, e.g. changing limit values, working points by control input
-
- 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
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
-
- 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
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/16—Type of output information
- B60K2360/169—Remaining operating distance or charge
-
- 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
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/16—Type of output information
- B60K2360/172—Driving mode indication
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- 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
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
- B60W2050/146—Display means
-
- 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
- B60W2540/215—Selection or confirmation of options
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- 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
- B60W2540/30—Driving style
-
- 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
- B60W2556/00—Input parameters relating to data
- B60W2556/45—External transmission of data to or from the vehicle
- B60W2556/50—External transmission of data to or from the vehicle of positioning data, e.g. GPS [Global Positioning System] data
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/84—Data processing systems or methods, management, administration
Definitions
- the present invention relates generally to a method of estimating a vehicle range.
- the present invention further relates to an onboard human-machine interface device and a vehicle comprising such a device.
- Recent vehicles are generally provided with a display providing an estimate of the range of the vehicle, that is to say the distance that the vehicle can travel with the energy reserve it carries. This information is important for a driver in the case of a traffic in a territory with no or few energy charging stations such as service stations, or in the case of a vehicle operating with a less or less available energy, such as natural gas, liquefied petroleum gas (LPG), hydrogen or electricity.
- LPG liquefied petroleum gas
- this information of vehicle autonomy depends on the path of the future vehicle that is difficult to predict, as a result of which the reliability of such information may be limited.
- autonomy information is generally estimated from the past path of the vehicle and can therefore vary significantly between two moments of the same path, for example down after a sharp rise or up after a phase economic style driving.
- An object of the present invention is to meet the disadvantages of the documents of the prior art mentioned above and in particular to provide a method of estimating a reliable vehicle autonomy and not having significant variation during a trip.
- a first aspect of the invention relates to a method for estimating a vehicle range comprising the steps of: ⁇ acquiring energy reserve information of the vehicle;
- the present method comprises a prior step of informing the driver of at least two extreme values of autonomy calculated according to at least two extreme values of the driving style scale. This helps guide the driver in his choice, that is to say that the driver can anticipate the consequence of his driving style before even considering a driving style value. A Such a process thus encourages energy savings while being more convenient for the user.
- the present method comprises an additional step of informing the driver of the acquired value of type of driving, which allows the driver to remember the value of driving style related to the displayed range value and to adapt his driving style and / or the envisaged value of driving style according to the course of his course and the value of autonomy desired.
- the present process comprises the additional steps of:
- the present method comprises an additional step of acquiring from the driver of the vehicle an envisaged value of course type on a course type scale and wherein the step of calculating a range value Estimate is also performed on the basis of the acquired value of type of course.
- the type of course scale is between a 100% urban route and a 100% highway route and the acquisition of a such value of type of course envisaged thus makes it possible to make the estimated autonomy value reliable and to avoid any significant variation during a journey.
- the present method may comprise a prior step of informing the driver of at least four calculated range values according to the combination of two extreme values of each of the driving style and the type of course, so that to allow the driver to choose his journey according to the desired autonomy and to present him the impact of the type of course and driving style envisaged on the estimated autonomy of the vehicle.
- the step of calculating an estimated autonomy value is also carried out on the basis of values of environmental parameters, of the passenger compartment of the vehicle and / or of a planned journey, which makes it possible to make the value even more reliable. estimated autonomy.
- a second aspect of the invention is a human-machine interface device for a vehicle, the device being configured to implement the method for estimating a vehicle range according to the first aspect of the invention. and understands for this:
- An interface unit adapted to acquire the driving style value envisaged by the driver
- a calculation unit adapted to calculate the estimated autonomy value
- a display unit adapted to inform the driver of the estimated autonomy value.
- the interface unit and the display unit are combined into a touch screen which allows an information transmission and intuitive interaction with the driver.
- a final aspect of the invention is a motor vehicle comprising at least one human-machine interface device according to the second aspect of the invention and / or implementing the method for estimating a vehicle range. according to the first aspect of the invention.
- FIG. 1 represents a touch screen of a human-machine interface device for a vehicle according to one embodiment of the invention
- FIG. 2 represents a touch screen of a human-machine interface device for a device. vehicle according to another embodiment of the invention.
- the present invention relates to a method of estimating a range for any type of vehicle, including a particular vehicle, professional, utility, collective, military or agricultural operating with any type of energy, for example gasoline unleaded, diesel, natural gas, LPG, hydrogen or electricity.
- the calculation of an estimated autonomy value is based in the present method on at least two pieces of information:
- a vehicle energy reserve information for example the liquid level of a fuel tank, the gas pressure level of a fuel tank or the output voltage of a battery, this information being therefore acquired through one or more sensors,
- a driving parameter envisaged in the form of a value on a driving style scale with which the driver plans to drive the vehicle for example a value “driving eco” or a value “driving sport” or a value of intermediate driving style between these two extreme values of driving style scale.
- This value of driving style is considered by the driver according to his journey, his usual driving style and / or his physical or mental state and can be acquired by a human-machine interface of the vehicle.
- the driver informs a driving style value on a driving style scale according to the driving style that he is considering. for its current or future trip and this value can then be used in the calculation of the estimated range value.
- a driving style scale according to the driving style that he is considering. for its current or future trip and this value can then be used in the calculation of the estimated range value.
- it may be a scale defined between an extreme value of the 100% economic driving type and another extreme value of 100% sporty driving type and defining a plurality of 8 to 18 intermediate values between these two extremal values, for example.
- the present method can acquire a value of another driving parameter in the form of a value of type of journey, for example defining the course or the path envisaged by the driver between an extremal value of type. 100% city course and another extreme value type 100% freeway.
- This other driving parameter can be integrated into the calculation of the vehicle's estimated range value in order to obtain a more reliable value and to avoid variations of this value during the journey.
- the present method can also acquire and use values of other types of parameters and for example environmental parameter values, values of cabin parameters and expected path parameter values, such as detailed below.
- a value of an environmental parameter may be the outside temperature when calculating the estimated range value, the time and date of the day or the expected weather during the journey, for example provided by a service of meteorology via a wireless connection.
- a value of a cabin parameter can be the desired temperature immediately or usually inside the vehicle, the number of passengers or the load of the vehicle.
- a value of a parameter of the planned path may be the path gradient, the density of traffic, the speed limits or the average speeds recorded on one or more traffic lanes.
- These parameters are for example from a satellite navigation system and / or provided by a remote service using a wireless connection.
- a vehicle may comprise a device for implementing the autonomy estimation method according to the present invention, for example a human-machine interface device comprising in particular:
- an interface unit for example one or more buttons, a wheel, a joystick and / or a tactile surface making it possible to acquire or receive an input from an occupant of a vehicle, in particular from the driver of the vehicle; vehicle,
- a computing unit also called a supervisor, comprising one or more processors, memory units and input / output systems making it possible to receive and send information
- one or more display units adapted to receive and transmit information coming from the computing unit, and comprising, for example, a display screen on the instrument panel or in the instrumentation handset or else an analog dial or one or more lights.
- the display unit is a screen and the interface unit is a touch surface positioned on this screen or integrated in this screen, but the present device is in no way limited to these elements.
- FIG. 1 illustrates a first embodiment of the present invention and shows a rectangular touch screen 10 provided with two end zones 1 1 and 12 and a central zone 13.
- Each end zone displays an autonomy value of vehicle calculated by the computing unit on the basis of the energy reserve information and two extreme values of the driving style of the vehicle.
- a higher extremal range value is 170 km (1 1 extremal zone)
- a sporty fully typed driving a lower extremal range value is 130 km (extremal zone 12).
- extremal range values can be derived from a calibration, that is to say, a prior driving of a vehicle in economic fully typed driving and fully typed sporty driving.
- the extremal values can be calculated by a statistical method such as the average consumption of the vehicle plus or minus three times the standard deviation (3 Sigma).
- the extremal values can also be calculated on the basis of the maximum and minimum consumptions previously recorded by the calculation unit of the vehicle or on other similar vehicles. Finally, these extremal values can be calculated on the basis of simulation of the operation of the vehicle.
- the touch screen represents on its length a driving style scale ranging from “eco driving” on the far left of the screen to “driving sport” on the far right of the screen and the length of the touch screen thus represents an incremental scale between the two extremal values, for example 1 to 10 where 1 represents a value of a fully typed economic driving style and 10 represents a value of a driving style fully typed sporty.
- the driver can inform the type of conduct that he plans to adopt by touching 20 on the touch screen at the most appropriate level ie representing the balance envisaged between "eco driving” and “sports driving”, in Figure 1 a rather sporty conduct.
- the computing unit can calculate a reliable estimated value of the remaining range of the vehicle and display it in the central area 13 of the touch screen 10, here 145 Km.
- the zone of the driving style scale selected by the driver that is to say the area touched by the driver may be represented by a circle, a border or a symbol so as to remind at driver of the vehicle to which acquired value of driving style corresponds the value of estimated autonomy displayed in the central zone 13.
- the present vehicle range estimation method provides the driver with reliable information that does not present large variations during the trip, provided that the driver complies with the driving style he has indicated .
- the driver can adapt his driving style to the desired autonomy and for example adopt a more economical driving if he wants to increase the autonomy of his vehicle.
- FIG. 2 illustrates a second embodiment of the present invention and shows a 100 square touch screen provided with four end zones 101, 102, 103, 104 situated at the four corners of the touch screen 100.
- the touch screen 100 comprises a vertical axis 1 1 1 and a horizontal axis 1 12, each of these axes being linked to a driving parameter to be acquired by the user.
- the vertical axis 1 1 1 is related to the type of course and the bottom of the touch screen 100 including the end zones 102 and 103 corresponds to a "highway route" while the top of the touch screen 100 and the extremal zones 101 and 104 corresponds to a "city route”. Between these two extremal values, the vertical axis 1 1 1 defines an incremental scale between a 100% city-type route and a 100% motorway-type route, with a 50% city and 50% highway route at its center.
- the horizontal axis 1 12 is related to the type of driving and the left of the touch screen 100 and the end zones 101 and 102 correspond to an "eco drive” while the right of the touch screen and the end zones 103 and 104 correspond to a "sporty driving", similarly to the first embodiment described above.
- the calculation unit calculates a range value corresponding to each combination of extreme values of these parameters on the basis of the vehicle energy information.
- the end zone 103 in the lower right corner of the touch screen 100 corresponds to a "highway route” in "sport driving”, and results in a displayed autonomy of 75 km.
- the extremal zone 101 located in the upper left corner corresponds to a "city route” and an "eco drive” and results in a displayed range of 250 km.
- the driver can thus touch an area of the touch screen corresponding to the point having coordinates the values envisaged in terms of type of course and type of driving.
- a touch 120 is made by the driver in an area corresponding to a very typical course "city course” and a conduct rather typical "eco driving".
- the driver plans to ride rather slowly, that is to say avoiding any acceleration and sudden braking in a path dominated by the city.
- the driver's touch 120 therefore results in two values of the driving parameters and enables the calculation unit to calculate an estimated range value 180 km displayed in the central zone 105 of the touch screen 100.
- the touch 120 can be stored and displayed continuously on the screen 100, as detailed above.
- the driver can estimate with improved reliability the value of autonomy of his vehicle according to the path he plans to perform and the style of driving he plans to adopt. He can also adopt his driving style if he wishes for example to increase the value of estimated autonomy.
- the driver is not able to objectively evaluate a value of his driving type or a value type of course, that is to say that the driver may be a victim of a systematic bias.
- it is possible to carry out an apprenticeship by comparing the value actually achieved of the driving parameter or parameters with the acquired value of the driver, in order to deduce a correction coefficient that makes it possible to align the acquired value with the value achieved for each of the driving parameters acquired from the driver.
- Such a correction coefficient can then be used for each subsequent calculation of estimated autonomy.
- a driver can evaluate his driving as rather economic while it is actually rather sporty, and the correction coefficient from the learning phase can then be applied to the acquired value of driving style so to further improve the reliability of the estimated range displayed.
- a correction coefficient can be calculated for each driver of the vehicle.
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Abstract
A method for estimating a range of a vehicle comprising the steps consisting of: · acquiring a piece of information on the energy reserve of the vehicle; · acquiring, from the vehicle driver, an envisaged value of the driving style on a driving style scale; · calculating a value of the estimated range on the basis of the acquired value of driving style and the piece of information on the energy reserve of the vehicle; · transmitting, to the driver, a piece of information on the estimated range value.
Description
PROCEDE D’ESTIMATION D’UN E AUTONOMIE DE METHOD FOR ESTIMATING E AUTONOMY OF
VEHICULE VEHICLE
[0001 ] La présente invention concerne de manière générale un procédé d’estimation d’une autonomie de véhicule. La présente invention concerne en outre un dispositif d’interface homme-machine embarqué et un véhicule comprenant un tel dispositif. The present invention relates generally to a method of estimating a vehicle range. The present invention further relates to an onboard human-machine interface device and a vehicle comprising such a device.
[0002] Les véhicules récents sont généralement pourvus d’un affichage fournissant une estimation de l’autonomie du véhicule, c’est-à-dire la distance que le véhicule peut parcourir avec la réserve d’énergie qu’il transporte. Cette information est importante pour un conducteur dans le cas d’une circulation au sein d’un territoire ne comprenant pas ou peu de stations de recharge d’énergie comme des stations-services, ou bien dans le cas d’un véhicule fonctionnant avec une énergie peu ou moins disponible, comme par exemple le gaz naturel, le gaz de pétrole liquéfié (GPL), l’hydrogène ou l’électricité. Recent vehicles are generally provided with a display providing an estimate of the range of the vehicle, that is to say the distance that the vehicle can travel with the energy reserve it carries. This information is important for a driver in the case of a traffic in a territory with no or few energy charging stations such as service stations, or in the case of a vehicle operating with a less or less available energy, such as natural gas, liquefied petroleum gas (LPG), hydrogen or electricity.
[0003] Cependant, cette information d’autonomie du véhicule dépend du trajet du véhicule à venir qui est difficile à prévoir, en conséquence de quoi la fiabilité d’une telle information peut être limitée. De plus, une telle information d’autonomie est généralement estimée à partir du trajet passé du véhicule et peut donc varier significativement entre deux moments d’un même trajet, par exemple à la baisse après une forte montée ou bien à la hausse après une phase de conduite de style économique. However, this information of vehicle autonomy depends on the path of the future vehicle that is difficult to predict, as a result of which the reliability of such information may be limited. In addition, such autonomy information is generally estimated from the past path of the vehicle and can therefore vary significantly between two moments of the same path, for example down after a sharp rise or up after a phase economic style driving.
[0004] Il est connu dans l’art antérieur des dispositifs ou des procédés permettant d’estimer l’autonomie d’un véhicule selon l’utilisation du système de chauffage du véhicule (document FR2975065) ou selon l’état de la climatisation du véhicule (document FR2961775). Cependant, l’utilisation du système de chauffage ou de climatisation ne représente qu’une partie de la consommation d’énergie d’un véhicule et ces documents ne permettent pas
d’anticiper le trajet à venir d’un véhicule, en particulier la façon dont le conducteur va mener son véhicule. It is known in the prior art devices or methods for estimating the range of a vehicle according to the use of the vehicle heating system (FR2975065) or according to the state of the air conditioning of the vehicle. vehicle (document FR2961775). However, the use of the heating or cooling system represents only a part of the energy consumption of a vehicle and these documents do not allow to anticipate the future journey of a vehicle, especially how the driver will drive his vehicle.
[0005] Un but de la présente invention est de répondre aux inconvénients des documents de l’art antérieur mentionnés ci-dessus et en particulier, de proposer un procédé d’estimation d’une autonomie de véhicule fiable et ne présentant pas de variation importants au cours d’un trajet. An object of the present invention is to meet the disadvantages of the documents of the prior art mentioned above and in particular to provide a method of estimating a reliable vehicle autonomy and not having significant variation during a trip.
[0006] Pour cela, un premier aspect de l'invention concerne un procédé d’estimation d’une autonomie de véhicule comprenant les étapes consistant à : · acquérir une information de réserve d'énergie du véhicule ; For this, a first aspect of the invention relates to a method for estimating a vehicle range comprising the steps of: · acquiring energy reserve information of the vehicle;
• acquérir du conducteur du véhicule une valeur envisagée de style de conduite sur une échelle de style de conduite ; • acquire from the driver of the vehicle a proposed value of driving style on a driving style scale;
• calculer une valeur d’autonomie estimée sur la base de la valeur acquise de style de conduite et de l’information de réserve d'énergie du véhicule ; Calculating an estimated range value based on the acquired driving style value and the vehicle energy reserve information;
• transmettre au conducteur une information de la valeur d’autonomie estimée. • transmit to the driver information of the estimated autonomy value.
[0007] Ainsi, acquérir la valeur envisagée de type de conduite, par exemple sur une échelle de type de conduite allant d’une conduite 100% économique à une conduite 100 % sportive, permet de fiabiliser la valeur d’autonomie transmise au conducteur, ainsi que d’éviter des variations importantes de la valeur d’autonomie au cours du trajet réalisé par le conducteur. Thus, to acquire the envisaged value of driving type, for example on a driving type scale from a 100% economic driving to a 100% sporty driving, makes it possible to make reliable the value of autonomy transmitted to the driver. and to avoid significant variations in the value of autonomy during the journey made by the driver.
[0008] Avantageusement, le présent procédé comprend une étape préalable consistant à informer le conducteur d’au moins deux valeurs extrêmales d’autonomie calculées selon au moins deux valeurs extrêmales de l’échelle de style de conduite. Ceci permet de guider le conducteur dans son choix, c’est-à-dire que le conducteur peut anticiper la conséquence de son style de conduite avant même d’envisager une valeur de style de conduite. Un
tel procédé incite donc aux économies d’énergie tout en étant plus pratique pour l’utilisateur. Advantageously, the present method comprises a prior step of informing the driver of at least two extreme values of autonomy calculated according to at least two extreme values of the driving style scale. This helps guide the driver in his choice, that is to say that the driver can anticipate the consequence of his driving style before even considering a driving style value. A Such a process thus encourages energy savings while being more convenient for the user.
[0009] Avantageusement, le présent procédé comprend une étape additionnelle consistant à informer le conducteur de la valeur acquise de type de conduite, ce qui permet au conducteur de se souvenir de la valeur de style de conduite liée à la valeur d’autonomie affichée et d’adapter son style de conduite et/ou la valeur envisagée de style de conduite selon le déroulé de son parcours et la valeur d’autonomie désirée. Advantageously, the present method comprises an additional step of informing the driver of the acquired value of type of driving, which allows the driver to remember the value of driving style related to the displayed range value and to adapt his driving style and / or the envisaged value of driving style according to the course of his course and the value of autonomy desired.
[0010] De manière avantageuse, le présent procédé comprend les étapes additionnelles consistant à : Advantageously, the present process comprises the additional steps of:
• comparer le style de conduite réalisé par le conducteur avec la valeur acquise de style de conduite , • compare the driving style achieved by the driver with the acquired value of driving style,
• calculer un coefficient de correction permettant d’aligner la valeur acquise avec le style de conduite réalisé, · appliquer ledit coefficient de correction à la valeur acquise de style de conduite lors d’un calcul subséquent de la valeur d’autonomie estimée. • calculate a correction coefficient to align the acquired value with the driving style achieved, · apply the correction coefficient to the acquired driving style value in a subsequent calculation of the estimated range value.
[001 1 ] Ceci permet donc d’apprendre, par exemple par un réseau neuronal, le style de conduite du conducteur et d’éviter tout biais lié à l’évaluation subjective de son style de conduite par le conducteur. La valeur d’autonomie estimée est donc rendu encore plus fiable. [001 1] This allows to learn, for example by a neural network, the driving style of the driver and avoid any bias related to the subjective assessment of his driving style by the driver. The estimated autonomy value is thus made even more reliable.
[0012] De manière spécialement avantageuse, le présent procédé comprend une étape additionnelle consistant à acquérir du conducteur du véhicule une valeur envisagée de type de parcours sur une échelle de type de parcours et dans lequel l’étape consistant à calculer une valeur d’autonomie estimée est également réalisée sur la base de la valeur acquise de type de parcours. [0012] Especially advantageously, the present method comprises an additional step of acquiring from the driver of the vehicle an envisaged value of course type on a course type scale and wherein the step of calculating a range value Estimate is also performed on the basis of the acquired value of type of course.
[0013] Par exemple, l’échelle de type de parcours est comprise entre un parcours 100 % urbain et un parcours 100 % autoroute et l’acquisition d’une
telle valeur de type de parcours envisagé permet donc de fiabiliser la valeur d’autonomie estimée et d’éviter toute variation importante au cours d’un trajet. For example, the type of course scale is between a 100% urban route and a 100% highway route and the acquisition of a such value of type of course envisaged thus makes it possible to make the estimated autonomy value reliable and to avoid any significant variation during a journey.
[0014] Ainsi, le présent procédé peut comprendre une étape préalable consistant à informer le conducteur d’au moins quatre valeurs d’autonomie calculées en fonction de la combinaison de deux valeurs extrêmales de chacun du style de conduite et du type de parcours, afin de permettre au conducteur de choisir son trajet selon l’autonomie désirée ainsi que de lui présenter l’impact du type de parcours et du style de conduite envisagée sur l’autonomie estimée du véhicule. Thus, the present method may comprise a prior step of informing the driver of at least four calculated range values according to the combination of two extreme values of each of the driving style and the type of course, so that to allow the driver to choose his journey according to the desired autonomy and to present him the impact of the type of course and driving style envisaged on the estimated autonomy of the vehicle.
[0015] Avantageusement, l’étape de calculer une valeur d’autonomie estimée est également réalisée sur la base de valeurs de paramètres environnementaux, d’habitacle du véhicule et/ou d’un trajet prévu, ce qui permet de fiabiliser encore la valeur d’autonomie estimée. Advantageously, the step of calculating an estimated autonomy value is also carried out on the basis of values of environmental parameters, of the passenger compartment of the vehicle and / or of a planned journey, which makes it possible to make the value even more reliable. estimated autonomy.
[0016] Un second aspect de l'invention est un dispositif d’interface homme-machine pour un véhicule, le dispositif étant configuré pour mettre en oeuvre le procédé d’estimation d’une autonomie de véhicule selon le premier aspect de l'invention et comprend pour cela : A second aspect of the invention is a human-machine interface device for a vehicle, the device being configured to implement the method for estimating a vehicle range according to the first aspect of the invention. and understands for this:
• une unité d’interface adaptée pour acquérir la valeur de style de conduite envisagée par le conducteur, An interface unit adapted to acquire the driving style value envisaged by the driver,
• une unité de calcul adaptée pour calculer la valeur d’autonomie estimée, A calculation unit adapted to calculate the estimated autonomy value,
• une unité d’affichage adaptée pour informer le conducteur de la valeur d’autonomie estimée. A display unit adapted to inform the driver of the estimated autonomy value.
[0017] Avantageusement, l’unité d’interface et l’unité d’affichage sont confondus en un écran tactile ce qui permet une transmission d’information et une interaction intuitive avec le conducteur. Advantageously, the interface unit and the display unit are combined into a touch screen which allows an information transmission and intuitive interaction with the driver.
[0018] Un dernier aspect de l'invention un véhicule automobile comportant au moins un dispositif d’interface-homme-machine selon le deuxième aspect de l'invention et/ou mettant en oeuvre le procédé d’estimation d’une autonomie de véhicule selon le premier aspect de l’invention.
[0019] D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement à la lecture de la description détaillée qui suit d'un mode de réalisation de l'invention donné à titre d'exemple nullement limitatif et illustré par les dessins annexés, dans lesquels : A final aspect of the invention is a motor vehicle comprising at least one human-machine interface device according to the second aspect of the invention and / or implementing the method for estimating a vehicle range. according to the first aspect of the invention. Other features and advantages of the present invention will appear more clearly on reading the following detailed description of an embodiment of the invention given by way of non-limiting example and illustrated by the accompanying drawings, wherein :
- la figure 1 représente un écran tactile d’un dispositif d’interface homme-machine pour un véhicule selon un mode de réalisation de l’invention, la figure 2 représente un écran tactile d’un dispositif d’interface homme-machine pour un véhicule selon un autre mode de réalisation de l’invention. FIG. 1 represents a touch screen of a human-machine interface device for a vehicle according to one embodiment of the invention, FIG. 2 represents a touch screen of a human-machine interface device for a device. vehicle according to another embodiment of the invention.
[0020] La présente invention concerne un procédé d’estimation d’une autonomie pour tout type de véhicule, notamment un véhicule particulier, professionnel, utilitaire, collectif, militaire ou agricole fonctionnant avec tout type d’énergie, par exemple de l’essence sans plomb, du diesel, du gaz naturel, du GPL, de l’hydrogène ou encore de l’électricité. The present invention relates to a method of estimating a range for any type of vehicle, including a particular vehicle, professional, utility, collective, military or agricultural operating with any type of energy, for example gasoline unleaded, diesel, natural gas, LPG, hydrogen or electricity.
[0021 ] Le calcul d’une valeur d’autonomie estimée se base dans le présent procédé sur au moins deux informations : The calculation of an estimated autonomy value is based in the present method on at least two pieces of information:
- une information de réserve d’énergie du véhicule, par exemple le niveau de liquide d’un réservoir de carburant, le niveau de pression de gaz d’un réservoir de carburant ou encore la tension de sortie d’une batterie, cette information étant donc acquise par le biais d’un ou plusieurs capteurs, a vehicle energy reserve information, for example the liquid level of a fuel tank, the gas pressure level of a fuel tank or the output voltage of a battery, this information being therefore acquired through one or more sensors,
- un paramètre de conduite envisagée sous la forme d’une valeur sur une échelle de style de conduite avec laquelle le conducteur prévoit de mener le véhicule, par exemple une valeur « conduite éco » ou une valeur « conduite sportive » ou bien une valeur de style de conduite intermédiaire entre ces deux valeurs extrémales de l’échelle de style de conduite. a driving parameter envisaged in the form of a value on a driving style scale with which the driver plans to drive the vehicle, for example a value "driving eco" or a value "driving sport" or a value of intermediate driving style between these two extreme values of driving style scale.
[0022] Cette valeur de style de conduite est envisagée par le conducteur selon son trajet, son style de conduite habituel et/ou son état physique ou psychique et peut être acquise par une interface homme-machine du véhicule. Ainsi, le conducteur renseigne une valeur de style de conduite sur une échelle de style de conduite selon le style de conduite qu’il envisage
pour son trajet en cours ou à venir et cette valeur peut être alors utilisée dans le calcul de la valeur d’autonomie estimée. Par exemple, il peut s’agir d’une échelle définie entre une valeur extrémale de type conduite 100 % économique et une autre valeur extrémale de type conduite 100 % sportive et définissant une pluralité de 8 à 18 valeurs intermédiaires entre ces deux valeurs extrémales, par exemple. This value of driving style is considered by the driver according to his journey, his usual driving style and / or his physical or mental state and can be acquired by a human-machine interface of the vehicle. Thus, the driver informs a driving style value on a driving style scale according to the driving style that he is considering. for its current or future trip and this value can then be used in the calculation of the estimated range value. For example, it may be a scale defined between an extreme value of the 100% economic driving type and another extreme value of 100% sporty driving type and defining a plurality of 8 to 18 intermediate values between these two extremal values, for example.
[0023] En outre, le présent procédé peut acquérir une valeur d’un autre paramètre de conduite sous la forme d’une valeur de type de parcours, par exemple définissant le parcours ou le trajet envisagé par le conducteur entre une valeur extrémale de type parcours 100% ville et une autre valeur extrémale de type parcours 100 % autoroute. Cet autre paramètre de conduite peut être intégré au calcul de la valeur d’autonomie estimée du véhicule afin d’obtenir une valeur plus fiable et d’éviter des variations de cette valeur durant le trajet. In addition, the present method can acquire a value of another driving parameter in the form of a value of type of journey, for example defining the course or the path envisaged by the driver between an extremal value of type. 100% city course and another extreme value type 100% freeway. This other driving parameter can be integrated into the calculation of the vehicle's estimated range value in order to obtain a more reliable value and to avoid variations of this value during the journey.
[0024] De plus, le présent procédé peut également acquérir et utiliser des valeurs d’autres types de paramètres et par exemple des valeurs de paramètres environnementaux, des valeurs de paramètres d’habitacle et des valeurs de paramètres de trajet prévues, telles que détaillées ci-après. In addition, the present method can also acquire and use values of other types of parameters and for example environmental parameter values, values of cabin parameters and expected path parameter values, such as detailed below.
[0025] Une valeur d’un paramètre environnemental peut être la température extérieure lors du calcul de la valeur d’autonomie estimée, l’heure et la date du jour ou encore la météo prévue durant le trajet, par exemple fournie par un service de météorologie via une connexion sans fil. A value of an environmental parameter may be the outside temperature when calculating the estimated range value, the time and date of the day or the expected weather during the journey, for example provided by a service of meteorology via a wireless connection.
[0026] Une valeur d’un paramètre d’habitacle peut être la température désirée immédiatement ou habituellement à l’intérieur du véhicule, le nombre de passagers ou encore la charge du véhicule. A value of a cabin parameter can be the desired temperature immediately or usually inside the vehicle, the number of passengers or the load of the vehicle.
[0027] Enfin, une valeur d’un paramètre du trajet prévu peut être la déclivité du trajet, la densité de la circulation, les limitations de vitesse ou encore les vitesses moyennes relevées sur une ou plusieurs voies de circulation. Ces paramètres sont par exemple issus d’un système de navigation par satellite et/ou fourni par un service à distance à l’aide d’une connexion sans fil.
[0028] Ainsi, un véhicule peut comprendre un dispositif permettant de mettre en oeuvre le procédé d’estimation d’autonomie selon la présente invention, par exemple un dispositif d’interface homme-machine comprenant notamment : Finally, a value of a parameter of the planned path may be the path gradient, the density of traffic, the speed limits or the average speeds recorded on one or more traffic lanes. These parameters are for example from a satellite navigation system and / or provided by a remote service using a wireless connection. Thus, a vehicle may comprise a device for implementing the autonomy estimation method according to the present invention, for example a human-machine interface device comprising in particular:
- une unité d’interface, par exemple un ou plusieurs boutons, une molette, un joystick et/ou une surface tactile permettant d’acquérir ou de recevoir une entrée de la part d’un occupant d’un véhicule, notamment du conducteur du véhicule, an interface unit, for example one or more buttons, a wheel, a joystick and / or a tactile surface making it possible to acquire or receive an input from an occupant of a vehicle, in particular from the driver of the vehicle; vehicle,
- une unité de calcul, aussi appelée superviseur, comprenant un ou plusieurs processeurs, unités mémoires et systèmes d’entrée-sortie permettant de recevoir et d’envoyer des informations, a computing unit, also called a supervisor, comprising one or more processors, memory units and input / output systems making it possible to receive and send information,
- une ou plusieurs unités d’affichage adaptées pour recevoir et transmettre une information venant de l’unité de calcul, et comprenant par exemple un écran d’affichage sur le tableau de bord ou dans le combiné d’instrumentation ou encore un cadran analogique ou un ou plusieurs voyants. one or more display units adapted to receive and transmit information coming from the computing unit, and comprising, for example, a display screen on the instrument panel or in the instrumentation handset or else an analog dial or one or more lights.
[0029] Dans les modes de réalisation décrits ci-après, l’unité d’affichage est un écran et l’unité d’interface est une surface tactile positionnée sur cet écran ou intégré à cet écran, mais le présent dispositif n’est nullement limité à ces éléments. In the embodiments described below, the display unit is a screen and the interface unit is a touch surface positioned on this screen or integrated in this screen, but the present device is in no way limited to these elements.
[0030] La figure 1 illustre un premier mode de réalisation de la présente invention et représente un écran tactile 10 rectangulaire pourvu de deux zones extrémales 1 1 et 12 et d’une zone centrale 13. Chaque zone extrémale affiche une valeur d’autonomie du véhicule calculée par l’unité de calcul sur la base de l’information de réserve d’énergie et de deux valeurs extrémales du style de conduite du véhicule. Ici, sur la base d’une conduite entièrement typée économique, une valeur d’autonomie extrémale supérieure est de 170 km (zone extrémale 1 1 ) et sur la base d’une conduite entièrement typée sportive, une valeur d’autonomie extrémale inférieure est de 130 km (zone extrémale 12).
[0031 ] Ces valeurs d’autonomie extrémales peuvent être issues d’un étalonnage, c’est-à-dire d’une conduite préalable d’un véhicule en conduite entièrement typée économique et en conduite entièrement typée sportive. Alternativement, les valeurs extrémales peuvent être calculées par une méthode statistique telle que la moyenne de consommation du véhicule plus ou moins trois fois l’écart type (3 Sigma). De plus, les valeurs extrémales peuvent être aussi calculées sur la base des consommations maximales et minimales relevées antérieurement par l’unité de calcul du véhicule ou bien sur d’autres véhicules similaires. Enfin, ces valeurs extrémales peuvent être calculées sur la base de simulation du fonctionnement du véhicule. FIG. 1 illustrates a first embodiment of the present invention and shows a rectangular touch screen 10 provided with two end zones 1 1 and 12 and a central zone 13. Each end zone displays an autonomy value of vehicle calculated by the computing unit on the basis of the energy reserve information and two extreme values of the driving style of the vehicle. Here, on the basis of a fully typed economical driving, a higher extremal range value is 170 km (1 1 extremal zone) and on the basis of a sporty fully typed driving, a lower extremal range value is 130 km (extremal zone 12). These extremal range values can be derived from a calibration, that is to say, a prior driving of a vehicle in economic fully typed driving and fully typed sporty driving. Alternatively, the extremal values can be calculated by a statistical method such as the average consumption of the vehicle plus or minus three times the standard deviation (3 Sigma). In addition, the extremal values can also be calculated on the basis of the maximum and minimum consumptions previously recorded by the calculation unit of the vehicle or on other similar vehicles. Finally, these extremal values can be calculated on the basis of simulation of the operation of the vehicle.
[0032] En outre, l’écran tactile représente sur sa longueur une échelle de style de conduite allant de « conduite éco » à l’extrême gauche de l’écran jusqu’à « conduite sportive » à l’extrême droite de l’écran et la longueur de l’écran tactile représente donc une échelle incrémentale entre les deux valeurs extrémales, par exemple 1 à 10 où 1 représente une valeur d’un style de conduite entièrement typé économique et 10 représente une valeur d’un style de conduite entièrement typé sportif. In addition, the touch screen represents on its length a driving style scale ranging from "eco driving" on the far left of the screen to "driving sport" on the far right of the screen and the length of the touch screen thus represents an incremental scale between the two extremal values, for example 1 to 10 where 1 represents a value of a fully typed economic driving style and 10 represents a value of a driving style fully typed sporty.
[0033] Grâce à cette échelle incrémentale, le conducteur peut renseigner le type de conduite qu’il envisage d’adopter en effectuant un toucher 20 sur l’écran tactile au niveau le plus approprié c’est à dire représentant l’équilibre envisagé entre la « conduite éco » et la « conduite sportive », sur la figure 1 une conduite plutôt sportive. With this incremental scale, the driver can inform the type of conduct that he plans to adopt by touching 20 on the touch screen at the most appropriate level ie representing the balance envisaged between "eco driving" and "sports driving", in Figure 1 a rather sporty conduct.
[0034] Sur la base de cette valeur acquise sur l’échelle de style de conduite par l’écran tactile 10 et d’une information de réserve d’énergie du véhicule comme un niveau de carburant restant dans le réservoir du véhicule, l’unité de calcul peut calculer une valeur estimée fiable de l’autonomie restante du véhicule et l’afficher dans la zone centrale 13 de l’écran tactile 10, ici 145 Km. On the basis of this value acquired on the driving style scale by the touch screen 10 and a vehicle energy reserve information as a fuel level remaining in the vehicle tank, the computing unit can calculate a reliable estimated value of the remaining range of the vehicle and display it in the central area 13 of the touch screen 10, here 145 Km.
[0035] En outre, la zone de l’échelle de style de conduite sélectionnée par le conducteur, c’est-à-dire la zone touchée par le conducteur peut être représentée par un cercle, un liseré ou un symbole de façon à rappeler au
conducteur du véhicule à quelle valeur acquise de style de conduite correspond la valeur d’autonomie estimée affichée dans la zone centrale 13. In addition, the zone of the driving style scale selected by the driver, that is to say the area touched by the driver may be represented by a circle, a border or a symbol so as to remind at driver of the vehicle to which acquired value of driving style corresponds the value of estimated autonomy displayed in the central zone 13.
[0036] Ainsi, le présent procédé d’estimation d’autonomie de véhicule permet de fournir au conducteur une information fiable qui ne présente pas de grandes variations durant le trajet, pour autant que le conducteur respecte le style de conduite qu’il a indiqué. En outre, le conducteur peut adapter son style de conduite à l’autonomie désirée et par exemple adopter une conduite plus économique s’il souhaite accroire l’autonomie de son véhicule. Thus, the present vehicle range estimation method provides the driver with reliable information that does not present large variations during the trip, provided that the driver complies with the driving style he has indicated . In addition, the driver can adapt his driving style to the desired autonomy and for example adopt a more economical driving if he wants to increase the autonomy of his vehicle.
[0037] La figure 2 illustre un deuxième mode de réalisation de la présente invention et représente un écran tactile 100 carré pourvu de quatre zones extrémales 101 , 102, 103, 104 situées aux quatre coins de l’écran tactile 100. De plus, l’écran tactile 100 comprend un axe vertical 1 1 1 et un axe horizontal 1 12, chacun de ces axes étant lié à un paramètre de conduite à acquérir de l’utilisateur. FIG. 2 illustrates a second embodiment of the present invention and shows a 100 square touch screen provided with four end zones 101, 102, 103, 104 situated at the four corners of the touch screen 100. Moreover, The touch screen 100 comprises a vertical axis 1 1 1 and a horizontal axis 1 12, each of these axes being linked to a driving parameter to be acquired by the user.
[0038] Ainsi, l’axe vertical 1 1 1 est lié au type de parcours et le bas de l’écran tactile 100 comprenant les zones extrémales 102 et 103 correspond à un « parcours autoroute » alors que le haut de l’écran tactile 100 et les zones extrémales 101 et 104 correspond à un « parcours ville ». Entre ces deux valeurs extrémales, l’axe vertical 1 1 1 définit une échelle incrémentale entre un parcours de type 100 % ville et un parcours de type 100 % autoroute, avec en son milieu un parcours 50% ville et 50 % autoroute. Thus, the vertical axis 1 1 1 is related to the type of course and the bottom of the touch screen 100 including the end zones 102 and 103 corresponds to a "highway route" while the top of the touch screen 100 and the extremal zones 101 and 104 corresponds to a "city route". Between these two extremal values, the vertical axis 1 1 1 defines an incremental scale between a 100% city-type route and a 100% motorway-type route, with a 50% city and 50% highway route at its center.
[0039] De même, l’axe horizontal 1 12 est lié au type de conduite et la gauche de l’écran tactile 100 et les zones extrémales 101 et 102 correspondent à une « conduite éco » alors que la droite de l’écran tactile et les zones extrémales 103 et 104 correspondent à une « conduite sportive », de façon similaire au premier mode de réalisation décrit ci-dessus. Similarly, the horizontal axis 1 12 is related to the type of driving and the left of the touch screen 100 and the end zones 101 and 102 correspond to an "eco drive" while the right of the touch screen and the end zones 103 and 104 correspond to a "sporty driving", similarly to the first embodiment described above.
[0040] L’unité de calcul réalise le calcul d’une valeur d’autonomie correspondant à chaque combinaison de valeurs extrémales de ces paramètres sur la base de l’information d’énergie du véhicule. Dans le cas représenté à la figure 2, la zone extrémale 103 au coin inférieur droit de l’écran tactile 100 correspond à un « parcours autoroute » en « conduite sportive », et
résulte en une autonomie affichée de 75 Km. A l’opposé, la zone extrémale 101 situé au coin supérieur gauche correspond à un « parcours ville » et à une « conduite éco » et résulte en une autonomie affichée de 250 Km. The calculation unit calculates a range value corresponding to each combination of extreme values of these parameters on the basis of the vehicle energy information. In the case shown in FIG. 2, the end zone 103 in the lower right corner of the touch screen 100 corresponds to a "highway route" in "sport driving", and results in a displayed autonomy of 75 km. In contrast, the extremal zone 101 located in the upper left corner corresponds to a "city route" and an "eco drive" and results in a displayed range of 250 km.
[0041 ] Les valeurs extrémales de chacune de ces échelles de type de conduite et de type de parcours peuvent être obtenus par un étalonnage, par une méthode statistique ou bien être calculées, comme détaillées précédemment. The extreme values of each of these scales type of conduct and type of course can be obtained by calibration, by a statistical method or be calculated as detailed above.
[0042] Le conducteur peut ainsi toucher une zone de l’écran tactile correspondant au point ayant pour coordonnées les valeurs envisagées en terme de type de parcours et de type de conduite. Sur la figure 2, un toucher 120 est effectué par le conducteur dans une zone correspondant à un parcours très typé « parcours ville » et une conduite plutôt typé « conduite éco ». Ainsi le conducteur prévoit de rouler plutôt doucement, c’est à dire en évitant tout accélération et freinage brusque, dans un trajet à forte dominance ville. Le toucher 120 du conducteur résulte donc en deux valeurs des paramètres de conduite et permet à l’unité de calcul de calculer une valeur d’autonomie estimée à 180 Km affichée dans la zone centrale 105 de l’écran tactile 100. The driver can thus touch an area of the touch screen corresponding to the point having coordinates the values envisaged in terms of type of course and type of driving. In Figure 2, a touch 120 is made by the driver in an area corresponding to a very typical course "city course" and a conduct rather typical "eco driving". Thus the driver plans to ride rather slowly, that is to say avoiding any acceleration and sudden braking in a path dominated by the city. The driver's touch 120 therefore results in two values of the driving parameters and enables the calculation unit to calculate an estimated range value 180 km displayed in the central zone 105 of the touch screen 100.
[0043] Le toucher 120 peut être mémorisé et affiché en continu sur l’écran 100, comme détaillé précédemment. The touch 120 can be stored and displayed continuously on the screen 100, as detailed above.
[0044] Ainsi, le conducteur peut estimer avec une fiabilité améliorée la valeur d’autonomie de son véhicule selon le trajet qu’il prévoit d’effectuer et le style de conduite qu’il prévoit d’adopter. Il peut également adopter son style de conduite s’il souhaite par exemple augmenter la valeur d’autonomie estimée. Thus, the driver can estimate with improved reliability the value of autonomy of his vehicle according to the path he plans to perform and the style of driving he plans to adopt. He can also adopt his driving style if he wishes for example to increase the value of estimated autonomy.
[0045] Par ailleurs, il est possible que le conducteur ne soit pas capable d’évaluer objectivement une valeur de son type de conduite ou une valeur de type de parcours, c’est-à-dire que le conducteur peut être victime d’un biais systématique. Dans ce cas, il est possible d’effectuer un apprentissage par la comparaison de la valeur effectivement réalisée du ou des paramètres de conduite avec la valeur acquise du conducteur, afin d’en déduire un coefficient de correction permettant d’aligner la valeur acquise avec la valeur réalisée pour chacun des paramètres de conduite acquis du
conducteur. Un tel coefficient de correction peut alors être utilisé pour chaque calcul subséquent d’autonomie estimée. Furthermore, it is possible that the driver is not able to objectively evaluate a value of his driving type or a value type of course, that is to say that the driver may be a victim of a systematic bias. In this case, it is possible to carry out an apprenticeship by comparing the value actually achieved of the driving parameter or parameters with the acquired value of the driver, in order to deduce a correction coefficient that makes it possible to align the acquired value with the value achieved for each of the driving parameters acquired from the driver. Such a correction coefficient can then be used for each subsequent calculation of estimated autonomy.
[0046] Par exemple, un conducteur peut évaluer sa conduite comme plutôt économique alors qu’elle est en réalité plutôt sportive, et le coefficient de correction issu de la phase d’apprentissage peut alors être appliqué à la valeur acquise de style de conduite afin d’améliorer encore la fiabilité de l’autonomie estimée affichée. En outre, un tel coefficient de correction peut être calculé pour chaque conducteur du véhicule. For example, a driver can evaluate his driving as rather economic while it is actually rather sporty, and the correction coefficient from the learning phase can then be applied to the acquired value of driving style so to further improve the reliability of the estimated range displayed. In addition, such a correction coefficient can be calculated for each driver of the vehicle.
[0047] On comprendra que diverses modifications et/ou améliorations évidentes pour l'homme du métier peuvent être apportées aux différents modes de réalisation de l’invention décrits dans la présente description sans sortir du cadre de l'invention. En particulier, il est fait référence à l’unité d’affichage qui peut comprendre une jauge ou un autre type d’affichage, ou encore être remplacé par un dispositif de communication vocal. En outre, ledit procédé d’estimation d’une autonomie de véhicule peut être mis en oeuvre sur un dispositif électronique personnel comme un téléphone intelligent ou une ardoise tactile ou tablette.
It will be understood that various modifications and / or improvements obvious to those skilled in the art can be made to the various embodiments of the invention described in the present description without departing from the scope of the invention. In particular, reference is made to the display unit which may comprise a gauge or other type of display, or may be replaced by a voice communication device. In addition, said method of estimating a vehicle range can be implemented on a personal electronic device such as a smartphone or a slate touch or tablet.
Claims
1. Procédé d’estimation d’une autonomie de véhicule caractérisé en ce qu’il comprend les étapes consistant à : A method for estimating a vehicle range characterized in that it comprises the steps of:
• acquérir une information de réserve d'énergie du véhicule ; • acquire energy reserve information from the vehicle;
• acquérir du conducteur du véhicule une valeur envisagée de style de conduite sur une échelle de style de conduite ; • acquire from the driver of the vehicle a proposed value of driving style on a driving style scale;
• calculer une valeur d’autonomie estimée sur la base de la valeur acquise de style de conduite et de l’information de réserve d'énergie du véhicule ; Calculating an estimated range value based on the acquired driving style value and the vehicle energy reserve information;
• transmettre au conducteur une information de la valeur d’autonomie estimée. • transmit to the driver information of the estimated autonomy value.
2. Procédé d’estimation d’une autonomie de véhicule selon la revendication précédente, comprenant une étape préalable d’informer le conducteur d’au moins deux valeurs extrêmales d’autonomie calculées selon au moins deux valeurs extrêmales de l’échelle de style de conduite. 2. A method for estimating a vehicle range according to the preceding claim, comprising a preliminary step of informing the driver of at least two extreme values of autonomy calculated according to at least two extreme values of the scale of conduct.
3. Procédé d’estimation d’une autonomie de véhicule selon l’une quelconque des revendications précédentes, comprenant une étape additionnelle consistant à informer le conducteur de la valeur acquise de type de conduite. A method for estimating a vehicle range according to any one of the preceding claims, comprising an additional step of informing the driver of the acquired driving type value.
4. Procédé d’estimation d’une autonomie de véhicule selon l’une quelconque des revendications précédentes, comprenant les étapes additionnelles consistant à : A method for estimating a vehicle range according to any one of the preceding claims, comprising the additional steps of:
• comparer le style de conduite réalisé par le conducteur avec la valeur acquise de style de conduite, • compare the driving style achieved by the driver with the acquired value of driving style,
• calculer un coefficient de correction permettant d’aligner la valeur acquise avec le style de conduite réalisé,
• appliquer ledit coefficient de correction à la valeur acquise de style de conduite lors d’un calcul subséquent de la valeur d’autonomie estimée. • calculate a correction coefficient to align the acquired value with the style of conduct achieved, • Apply the correction coefficient to the acquired driving style value in a subsequent calculation of the estimated range value.
5. Procédé d’estimation d’une autonomie de véhicule selon l’une quelconque des revendications précédentes, comprenant une étape additionnelle consistant à acquérir du conducteur du véhicule une valeur envisagée de type de parcours sur une échelle de type de parcours et dans lequel l’étape consistant à calculer une valeur d’autonomie estimée est également réalisée sur la base de la valeur acquise de type de parcours. A method of estimating a vehicle range as claimed in any one of the preceding claims, comprising an additional step of acquiring from the vehicle driver an intended value of course type on a course type scale and wherein the step of calculating an estimated autonomy value is also performed on the basis of the acquired value of the type of journey.
6. Procédé d’estimation d’une autonomie de véhicule selon la revendication précédente, comprenant une étape préalable consistant à informer le conducteur d’au moins quatre valeurs (101 , 102, 103, 104) d’autonomie calculées en fonction de la combinaison de deux valeurs extrêmales de chacun du style de conduite et du type de parcours. 6. A method for estimating a vehicle range according to the preceding claim, comprising a preliminary step of informing the driver of at least four values (101, 102, 103, 104) of autonomy calculated according to the combination. two extreme values of each driving style and type of course.
7. Procédé d’estimation d’une autonomie de véhicule selon l’une quelconque des revendications précédentes, dans lequel l’étape de calculer une valeur d’autonomie estimée est également réalisée sur la base de valeurs de paramètres environnementaux, d’habitacle du véhicule et/ou d’un trajet prévu. 7. A method of estimating a vehicle range according to any one of the preceding claims, wherein the step of calculating an estimated range value is also performed on the basis of values of environmental parameters, passenger compartment of the vehicle. vehicle and / or a planned journey.
8. Dispositif d’interface homme-machine pour un véhicule, le dispositif étant configuré pour mettre en oeuvre le procédé d’estimation d’une autonomie de véhicule selon l’une quelconque des revendications précédentes caractérisé en ce qu’il comprend pour cela : 8. Human-machine interface device for a vehicle, the device being configured to implement the method of estimating a vehicle range according to any one of the preceding claims, characterized in that it comprises for that:
• une unité d’interface (10,100) adaptée pour acquérir la valeur de style de conduite envisagée par le conducteur, An interface unit (10, 100) adapted to acquire the driving style value envisaged by the driver,
• une unité de calcul adaptée pour calculer la valeur d’autonomie estimée, A calculation unit adapted to calculate the estimated autonomy value,
• une unité d’affichage (10, 100) adaptée pour informer le conducteur de la valeur d’autonomie estimée.
A display unit (10, 100) adapted to inform the driver of the estimated autonomy value.
9. Dispositif d’interface homme-machine selon la revendication précédente, caractérisé en ce que l’unité d’interface et l’unité d’affichage sont confondus en un écran tactile (10, 100). 9. Man-machine interface device according to the preceding claim, characterized in that the interface unit and the display unit are combined into a touch screen (10, 100).
10. Véhicule automobile comportant au moins un dispositif d’interface homme-machine selon l'une des revendications 8 à 9.
10. Motor vehicle comprising at least one human-machine interface device according to one of claims 8 to 9.
Applications Claiming Priority (2)
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FR1852093 | 2018-03-12 | ||
FR1852093A FR3078670B1 (en) | 2018-03-12 | 2018-03-12 | METHOD FOR ESTIMATING VEHICLE RANGE |
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PCT/FR2019/050308 WO2019175485A1 (en) | 2018-03-12 | 2019-02-13 | Method for estimating a range of a vehicle |
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FR3106321B1 (en) | 2020-01-19 | 2023-05-19 | Psa Automobiles Sa | METHOD FOR ESTIMATING A MOTOR VEHICLE DRIVING RANGE FOR SEVERAL DRIVING MODES INSTANTLY |
FR3134355A1 (en) | 2022-04-11 | 2023-10-13 | Psa Automobiles Sa | METHOD FOR DETERMINING THE RANGE OF AN ELECTRICALLY PROPULSION VEHICLE |
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FR2961775A1 (en) | 2010-06-29 | 2011-12-30 | Peugeot Citroen Automobiles Sa | Vehicle e.g. hybrid vehicle, autonomy estimating method, involves estimating power consumed for operating air-conditioner of vehicle, and dividing energy reserve available in vehicle by power consumed by displacement unit |
EP2708399A1 (en) * | 2011-05-10 | 2014-03-19 | Toyota Jidosha Kabushiki Kaisha | Vehicle display device |
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FR3078670A1 (en) | 2019-09-13 |
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