Method for calculating a route for an electric motor vehicle, electronic device, vehicle and system.

Abstract

A method for calculating the route of a motor vehicle (100) propelled by a motor (130) powered by a battery (120) is characterized in that it comprises the following steps: The first steps, implemented by a mobile phone, are: Sending a request, including an identifier of the motor vehicle (100), to a server (300); Receiving a response to the request from the server (300), the first response including: An electrical consumption profile of the motor vehicle (100); A charging profile of the battery (120); Determining, from the consumption and charging profiles, a route, the route minimizing the travel time of the motor vehicle (100) between a geographical origin and a geographical destination; Then, following the first steps, implementing second steps identical to the first steps, but implemented by the motor vehicle (100). Figure for the abstract: Figure 1

Description

Title of the invention: Method for calculating a route of an electric motor vehicle, electronic device, vehicle and system.

[0001] The invention relates to the calculation of a route for an electric motor vehicle implemented in a conventional manner.

[0002] There is a need to make the implementation of such a calculation, as well as the use of its result, simpler and more practical.

[0003] To this end, the invention relates to a method for calculating (in other words: determining) a route (in other words: a journey) of a motor vehicle propelled by an electric motor powered by a (electric) battery, characterized in that it comprises the following steps: - The following initial steps, implemented via a mobile phone (located outside the motor vehicle) (in other words: implemented in a mobile phone, located outside the motor vehicle): • Sending an initial request, including a vehicle identifier, to a server via a mobile (cellular) telephone network (for example, of the type known as "4G" or "5G"), then • Receipt of an initial response to the initial request, from the server, via the mobile phone network, the initial response comprising: - An electrical consumption profile of the motor vehicle when the motor vehicle is in motion and propelled by the electric motor (powered by the battery), - A battery charging profile, • Then, first determination, based on the electric consumption profile of the motor vehicle and the battery charging profile, of the route, the route minimizing a travel time of the motor vehicle, between a geographical origin and a geographical destination, including a stopping time of the motor vehicle during which the battery is connected to an electric charging station to recharge the battery. - Then, following the first steps, the subsequent second steps, implemented by the motor vehicle (in other words: within the motor vehicle): • Sending a second request, including the vehicle identifier, to the server via the mobile phone network, then • Receipt of a second response to the second request, from the server, via the mobile phone network, the second response comprising: - The electrical consumption profile of the motor vehicle, - The battery charging profile, • Then, second determination, based on the consumption profile of the motor vehicle and the battery charging profile, of the route.

[0004] Thus, thanks to the invention, it is possible, for example, for a driver of a motor vehicle to determine a route for the vehicle, for example the day before a trip, using a mobile phone. The following morning, for example, the motor vehicle will determine the same route, at the time the trip begins, thanks to the use of the same profiles.

[0005] Of course: - The first queries may be identical or different from the second queries, - The first answers may be the same as or different from the second answers.

[0006] According to one embodiment, prior to the initial determination step, the first steps include: - A battery charge level reading, or - Reception, from the motor vehicle, of a battery charge level (for example, by radio frequency communication).

[0007] Alternatively, the battery charge level can be received from the server (for example, by radio frequency communication).

[0008] For example, during the initial stages, the electrical consumption profile of the motor vehicle and / or the battery charging profile can be stored in the non-volatile memory of the mobile phone, after the initial response reception stage, followed by a further initial determination stage, based on the consumption and charging profiles, of a new route minimizing the motor vehicle's travel time between a new geographical origin and a new geographical destination (the new geographical origin being different from the geographical origin and / or the new geographical destination being different from the geographical destination) can be implemented (and repeated for different new geographical origins and new geographical destinations).

[0009] For example, during the second steps, the electrical consumption profile of the motor vehicle and / or the battery charging profile can be stored in a non-volatile memory of the motor vehicle, after the step of receiving a first response, then a new step of second determination, from the consumption profile and the charging profile, of a new route minimizing a travel time of the motor vehicle, between a new geographical origin and a new geographical destination (the new geographical origin being different from the geographical origin and / or the new geographical destination being different from the geographical destination) can be implemented (and repeated for different new geographical origins and new geographical destinations).

[0010] The first and / or second route determination step, based on the consumption and charging profiles, is known to those skilled in the art. It can be implemented using a road map, for example stored in memory, which includes electric charging stations and speed estimates for each road segment on the map. This step may include calculations of shortest paths on the road map and estimates of battery charging times, among other things. The "Long Distance Electric Vehicle Routing" route calculation algorithm from TomTom is an example.

[0011] The first determination step, based on the consumption profile and the recharging profile, can be followed by a step of ordering a display of the route on a mobile phone screen.

[0012] The second determination step, based on the consumption profile and the charging profile, can be followed by a step of ordering a display of the route on a screen of the motor vehicle (located in a passenger compartment of the motor vehicle).

[0013] According to one embodiment, the motor vehicle identifier is a motor vehicle identification number, for example conforming to ISO 3779:2009 and ISO 3780:2009.

[0014] Alternatively, the motor vehicle identifier includes a registration number (present on a registration plate) of the motor vehicle 100 or a motor vehicle type code.

[0015] According to one embodiment, the electrical consumption profile of the motor vehicle includes a function linking electrical consumption of the motor vehicle (in kilowatts per hour) and the speed of the motor vehicle (in kilometers per hour), for example when the motor vehicle is traveling on a horizontal roadway.

[0016] Alternatively, the electrical consumption profile includes a function linking electrical consumption of the motor vehicle (in kilowatts per hour) and road type (for example, the road type is motorway, countryside, city).

[0017] As an alternative or in combination, the electricity consumption profile includes: - A reduction factor (between 0 and 1) in the electrical consumption of a motor vehicle when traveling on a downhill road compared to the electrical consumption of the motor vehicle when traveling on a horizontal road, - A factor of increase (strictly greater than 1) in the electrical consumption of a motor vehicle when traveling on an uphill road compared to the electrical consumption of a motor vehicle when traveling on a horizontal road, - A reduction factor (between 0 and 1) of the electrical consumption of the motor vehicle when it is moving while decelerating compared to the electrical consumption of the motor vehicle when it is moving at a constant speed. - A factor of increase (strictly greater than 1) in the electrical consumption of the motor vehicle when it is moving while accelerating compared to the electrical consumption of the motor vehicle when it is moving at a constant speed.

[0018] According to one embodiment, the battery charging profile includes a function linking a charging power, in kilowatts, (during a charging of the motor vehicle) to a battery charge level, in percentage, because a vehicle charges faster when the battery charge level is between 20 and 80 percent.

[0019] Alternatively, the charging profile includes a single charging power regardless of the battery charge level.

[0020] As an alternative or in combination, the loading profile may include: - A maximum battery charging capacity (in kilowatts per hour), - A type of connector for a motor vehicle to connect, via a charging cable, the motor vehicle to a charging station (the connector type may be, for example, of the so-called "CSS Combo" or "CHAdeMO" type), (so that the station recharges the battery via the connector and charging cable), - A time (for example between 30 seconds and 1 minute) required for a battery recharge to begin once the battery is connected to the charging station (via the connector and charging cable).

[0021] The invention also relates to a calculation system comprising: - A mobile phone configured to implement the first steps of the process according to the invention, and - A motor vehicle configured to implement the second steps of the process according to the invention.

[0022] According to one embodiment, the server further comprises a server capable of implementing the following steps: - Receiving the first request from the mobile phone, via the mobile phone network, then - Sending the first response to the first request, to the mobile phone, via the mobile phone network, then - Reception of the second request from the motor vehicle, via a mobile phone network, then - Sends the second response to the second request, via the mobile phone network, to the motor vehicle.

[0023] The characteristics and advantages of the system are identical to those of the method according to the invention (without it being necessary to repeat them here).

[0024] When an electronic device, motor vehicle, mobile phone, server, or other element is "configured to" (or "suitable to" or "is designed to") perform or implement a step or operation, this implies, for example, that the element includes means for performing the step or operation. These means preferably include electronic means, for example, a computer program, data in memory, specialized electronic circuits, wired or wireless connections, a microprocessor, and / or a microcontroller.

[0025] Other features and advantages of the present invention will become more apparent upon reading the following detailed description, which includes embodiments of the invention given by way of non-limiting examples and illustrated by the accompanying drawings, in which: • [Fig. 1] represents a system according to one embodiment of the invention, • [Fig.2] represents an implementation of the process according to the invention, according to an example of an embodiment, by the system of [Fig.1].

[0026] Detailed description of an example embodiment of the invention, with reference to figures 1 and 2.

[0027] Fig. 1 represents the computing system 1000 comprising the vehicle 100 which is a motor vehicle, the mobile phone 200 and the server 300.

[0028] Vehicle 100 comprises: • A 140 passenger compartment, and • A 130 motor which is an electric propulsion motor for the vehicle, powered by the 120 battery, and • A microprocessor 110 connected to a display screen 150 located in the passenger compartment 140 (for example, via a data bus), and • A connector 160 of the vehicle 100 to connect, via a charging cable, the motor vehicle 100 to a charging station (the connector type may be, for example, of the so-called "CSS Combo" or "CHAdeMO" type),

[0029] With reference to [Fig.2], at step S00, when a driver of the motor vehicle wishes to plan a trip, he uses the mobile phone 200 which sends, to a server 300, a first request, including a vehicle identifier 100 stored in memory 211 of the mobile phone 200, via the mobile telephone network 400.

[0030] At step S10, server 300 receives the first request from mobile phone 200, via mobile phone network 400.

[0031] At step S20, server 300 sends a first response to the first request, to mobile phone 200.

[0032] At step S30, the mobile phone 200 receives the first response, from the server 300, via the mobile telephone network 400.

[0033] The first response includes: - An electrical consumption profile of the motor vehicle 100 when the motor vehicle 100 is moving (at a constant speed and on a horizontal road) and is propelled by the electric motor 130 and powered by the battery 120, stored in memory 312 - A battery charging profile 120 stored in memory 313.

[0034] At step S40, the mobile phone 200 stores the electrical consumption profile of the motor vehicle 100 in memory 212 and the battery charging profile 120 in memory 213.

[0035] The electricity consumption profile includes: - A function linking the electrical consumption of vehicle 100, in kilowatts per hour, and the speed of vehicle 100, in kilometers per hour, when vehicle 100 is traveling on a horizontal road surface, - A reduction factor (between 0 and 1) in the electrical consumption of a motor vehicle 100 when traveling on a downhill road compared to the electrical consumption of a motor vehicle 100 when traveling on a horizontal road, - A factor of increase (strictly greater than 1) in the electrical consumption of a motor vehicle 100 when it is traveling on an uphill road compared to the electrical consumption of a motor vehicle 100 when it is traveling on a horizontal road, - A reduction factor (between 0 and 1) of the electrical consumption of the motor vehicle 100 when it is moving while decelerating compared to the electrical consumption of the motor vehicle 100 when it is moving at a constant speed. - A factor of increase (strictly greater than 1) in the electrical consumption of the motor vehicle 100 when it is moving while accelerating compared to the electrical consumption of the motor vehicle 100 when it is moving at a constant speed.

[0036] The reloading profile includes: • A function linking a charging power, in kilowatts, during a vehicle charge (100), to a battery charge level (120), in percentage, • A maximum battery charging capacity of 120 kilowatt-hours, • A type of connector for a 160 connector of the motor vehicle 100 to connect, via a charging cable, the motor vehicle 100 to a charging station (the connector type may be, for example, of the so-called "CSS Combo" or "CHAdeMO" type), so that the charging station charges the battery 120 via the 160 connector and the charging cable, • A time (for example, 45 seconds) required for battery charging to begin once the battery is connected to the charging station, via connector 160 and charging cable.

[0037] At step S50, the mobile phone 300 determines, from the consumption profile and the charging profile, a route minimizing a travel time of the vehicle 100, between a geographical origin and a geographical destination, including a stopping time of the vehicle 100 during which the battery 120 is connected to an electric charging station to recharge the battery 120.

[0038] At step S60, the mobile phone 200 commands a display of the route (in other words: displays the route) on a screen 220 of the mobile phone 200.

[0039] The following day, at step S70, when the driver of vehicle 100 enters vehicle 100 to begin the journey, he interacts with the touchscreen 150 of vehicle 100 to initiate a route calculation. Vehicle 100, more precisely, the microprocessor 110, sends a second request to the server 300, including an identifier of vehicle 100 stored in memory 111 of vehicle 100, more precisely, of the microprocessor 110, via the mobile telephone network 400.

[0040] At step S80, server 300 receives the second request from microprocessor 110, via mobile telephone network 400.

[0041] At step S90, the server sends a second response to the second request, to microprocessor 110.

[0042] At step S100, the microprocessor 110 receives the second response, from the server 300, via the mobile telephone network 400.

[0043] The second response includes: - The electrical consumption profile of motor vehicle 100, identical to that received in step S30, stored in memory 312 - A battery charging profile 120, identical to that received at step S30, stored in memory 313.

[0044] At step SI 10, the microprocessor 110 stores the electrical consumption profile of the motor vehicle 100 in memory 112 and the charging profile of the battery 120 in memory 113.

[0045] At step S120, the microprocessor 110 determines, from the consumption profile and the charging profile, the same route as that determined at step S50, minimizing a travel time of the vehicle 100, between the geographical origin and the geographical destination, including a stopping time of the vehicle 100 during which the battery 120 is connected to an electric charging station to recharge the battery 120.

[0046] At step S130, the microprocessor 110 commands a display of the route (in other words: displays the route) on a screen 150 of the vehicle 100.

[0047] For example, steps S00 to S40 can be performed long before or just before steps S50 and S60, which can be repeated. Similarly, steps S80 to S10 can be performed long before or just before steps S120 and S130, which can be repeated.

Claims

1. Demands A method for calculating the route of a motor vehicle (100) propelled by an electric motor (130) powered by a battery (120) characterized in that it comprises the following steps: - The following initial steps, implemented via a mobile phone: • Sends (S00) an initial request, including a vehicle identifier (100), to a server (300), via a mobile telephone network (400), • Reception (S30) of a first response to the first request, from the server (300), via the mobile telephone network (400), the first response including: - An electrical consumption profile of the motor vehicle (100) when the motor vehicle (100) is moving and is propelled by the electric motor (130), - A battery charging profile (120), • First determination (S50), based on the electrical consumption profile of the motor vehicle (100) and the charging profile of the battery (120), of the route, the route minimizing the travel time of the motor vehicle (100), between a geographical origin and a geographical destination, including a stopping time of the motor vehicle (100) during which the battery (120) is connected to an electric charging station to recharge the battery (120), - Then, following the first steps, the subsequent second steps, implemented by the motor vehicle (100): • Sends (S70) a second request, including the motor vehicle identifier (100), to server (300), via the mobile phone network, • Reception (S 100) of a second response to the second request, from the server (300), via the mobile phone network (400), the second response including: - The electrical consumption profile of the motor vehicle (100), - The charging profile of the battery (120), • Second determination (S 120), from the electrical consumption profile of the motor vehicle (100) and the charging profile of the battery (120), of the route.

2. Calculation method according to claim 1 wherein the motor vehicle identifier 100 is a motor vehicle identification number (100).

3. Calculation method according to claim 1 or 2 wherein the electrical consumption profile of the motor vehicle includes a function linking electrical consumption of the motor vehicle (100) and traffic speed (100) of the motor vehicle (100).

4. Calculation method according to any one of the preceding claims wherein the battery charging profile (120) includes a function relating a charging power to a battery charge level (120).

5. Computing system comprising: - A mobile phone (200) configured to carry out the first steps of the process according to any one of claims 1 to 4, and - A motor vehicle (100) configured to carry out the second steps of the process according to any one of claims 1 to 4.

6. A computing system according to claim 5 comprising a server (300) capable of implementing the following steps: - Reception (S 10) of the first request from the mobile phone (200), via the mobile telephone network (400), Sends (S20) the first response to the first request, to the mobile phone (200), via the mobile phone network (400), then Reception (S 80) of the second request, from the motor vehicle (100), via a mobile telephone network (400), then Sends (S90) the second response to the second request, to the motor vehicle (100), via the mobile telephone network (400).

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