Method for planning the operation of a hybrid engine, associated device and motor vehicle.

Abstract

Method for planning an operation of a motorization of a vehicle (100), the motorization comprising a combustion engine (140) and an electric motor (120) comprising the following steps: Obtaining an outward journey from a geographical location of the vehicle (100) to a destination, Sending, to a screen (150) of the vehicle (100), an invitation to indicate whether a return journey is planned, Receiving a response, If the response indicates that the return journey is planned: Obtaining the return journey, First determination of a first scenario, comprising sequences of implementation of the combustion engine (140) and the electric motor (120) during the outward journey and the return journey, so as: A that the battery (160) is empty, when the motor vehicle (100) reaches the geographical location of the vehicle (100), A minimize fuel consumption. Figure for abstract: figure 1

Description

Title of the invention: Method for planning the operation of a hybrid engine, associated device and motor vehicle.

[0001] The invention relates to the planning of an operation of a motorization hybrid of a motor vehicle during journeys. There is a need to make the implementation of such planning more efficient and easier.

[0002] For this purpose, the invention relates to a method for planning an operation of a hybrid (rechargeable) (propulsion) engine of a motor vehicle (comprising a passenger compartment), the hybrid engine comprising a combustion engine (for example: gasoline or liquefied propane gas) and an electric motor powered by an (electric) battery, the method being implemented in the motor vehicle, characterized in that it comprises the following first steps: • Obtaining (in other words: determining) a one-way route, from a current geographical location of the motor vehicle, to a destination, from a road map, and • Sending (after or before the step of obtaining the outward journey), to a screen (display) of the motor vehicle (located for example in the passenger compartment of the motor vehicle), an instruction commanding the screen to display an invitation, the invitation requesting to indicate (in other words: the invitation inviting to indicate) whether a return journey is planned (without recharging the battery being envisaged at the destination), from the destination, to the current geographical location of the motor vehicle (, after the outward journey), then • Receiving a response to the invitation, from a human-machine interface (for example, a touch screen, a keyboard, a voice interface, for example: the screen) (located for example in the passenger compartment of the motor vehicle), then • If the response to the invitation indicates that the return trip is planned, then (otherwise, the process ends): • Obtaining (in other words: determining) a return route, from the road map, then • First determination of a first scenario, from a current level of electrical charge of the battery (and the method may comprise a step of determining a current level of charge of the battery), the first scenario comprising first sequences of implementation of the combustion engine and / or the electric motor during the outward journey and the return journey, so that, when the first sequences are implemented: • To minimize fuel consumption (for example: average, or alternatively maximum) of the combustion engine during the outward and return journeys, and • When the battery is empty, when the motor vehicle reaches the current geographical location of the motor vehicle, at the end of the return journey (in other words: after the return journey) (and therefore also after the outward journey).

[0003] Thus, the invention makes it possible to minimize the fuel consumption of the motor vehicle, taking into account that there will be a return journey (and the fact that the battery will not be recharged at the destination), and that the battery can be recharged at the current geographical location (and the method may include such a recharging step), and this without requiring entry or selection from a list of the current geographical location of the motor vehicle.

[0004] Obtaining the outward journey and obtaining the return journey can be implemented in a known manner, from a road map, for example in the memory of the motor vehicle (or the electronic device implementing the invention) or from a remote server.

[0005] Obtaining the outward journey may involve the following steps: • Reception, from the human-machine interface of the motor vehicle, of the destination (in other words: a geographical location of the destination), and • Receiving a current (in other words: instantaneous) geographical location of the motor vehicle from a satellite geolocation module of the motor vehicle (for example of the so-called “GPS” type).

[0006] It will be clear to those skilled in the art how to implement the first determination of the first scenario and that there are several possible implementation variants. Such a first scenario determination is already known, but for a single outward journey.

[0007] For example, the step of first determining the first scenario comprises an estimation of an electrical consumption and a fuel consumption for a plurality of scenarios each comprising sequences of implementation of the combustion engine and / or the electric motor. The first scenario is then that for which an estimation of fuel consumption by the combustion engine is minimum for an electrical consumption (in other words: electrical energy) lower than the charge level of the battery.

[0008] Alternatively, the first scenario may be determined analytically.

[0009] For example, it may be determined (from a road map, for example in memory, for example of the electronic device implementing the method, and), portions of the outward journey and the return journey which will be in an urban area, in a rural area and on a motorway (and / or sloping and / or horizontal portions), and the first scenario may be determined from these portions.

[0010] For example, if the battery charge level is high and / or the round trip is relatively short, the electric motor can be used alone (without the thermal engine) in the urban area and the countryside, and to assist the thermal engine in accelerating the motor vehicle on the motorway. Conversely, if the battery charge level is low and / or the round trip is relatively long, the electric motor can be used only in the urban area to assist the thermal engine in accelerating the motor vehicle, the thermal engine propelling the motor vehicle alone for the rest of the journey.

[0011] Other scenarios are of course possible.

[0012] According to one embodiment, the first steps comprising a step of second determination of a second scenario, from a current level of electric charge of the battery (and the method may comprise a step of determining a level of charge of the battery), after the step of receiving the response to the invitation, if the response to the invitation indicates that a return journey is not planned, the second scenario comprising second sequences of implementation of the combustion engine and / or the electric motor during the outward journey, so that, when the second sequences are implemented: • That the battery is empty when the motor vehicle reaches the destination, at the end of the outward journey (in other words: after the outward journey), and • To minimize fuel consumption (for example: average, or in the maximum variant) of the combustion engine during the outward journey (only).

[0013] Alternatively, if the response indicates that a return path is not expected, no sequence determination is implemented.

[0014] In the same way as for the first determination of the first scenario, it will be clear to the person skilled in the art how to implement the second determination of the second scenario and that there are several possible variants similar to the first determination of the first scenario (but considering the outward journey alone, instead of the outward and return journey).

[0015] According to one embodiment, the method comprises the following step, implemented after the first steps and during the outward journey and the return journey: • (Sends, to the electric motor of a,) Command of the electric motor and of the combustion engine so as to carry out the first sequences (or the second sequences, if the response to the invitation indicates that the return journey is not planned) of implementation of the combustion engine and / or the electric motor, if the response to the invitation indicates that the return journey is planned.

[0016] Alternatively, the method comprises a step of displaying the first sequences (or the second sequences) on the screen. The driver of the motor vehicle can then drive the motor vehicle while reproducing the first sequences (or the second sequences).

[0017] In a known manner, the control of the electric motor or the combustion engine can control, in other words, each sequence of the first and / or second sequences of operation of the combustion engine and / or the electric motor can comprise: • Assistance to the combustion engine by the electric motor during acceleration of the motor vehicle, and / or • Propulsion of the motor vehicle by the combustion engine alone or the electric motor alone.

[0018] Alternatively, the control of the electric motor or the combustion engine may control, in other words, each sequence of the first and / or second sequences of operation of the combustion engine and / or the electric motor may comprise: • Stopping or starting the electric motor and / or the combustion engine. • A coupling or decoupling to a mechanical transmission of the motor vehicle, the electric motor or the combustion engine, and / or • A maximum power level delivered by the electric motor or the combustion engine, • and / or a switch to a mode of energy recovery of the motor vehicle by the electric motor.

[0019] According to one embodiment, the instruction commands the screen to display the invitation in a pop-up window (in other words in an intruder window) of the screen.

[0020] Alternatively, the invitation is displayed in a destination entry window.

[0021] The invitation includes a text. This text could be "Is a return trip planned without recharging your battery."

[0022] If a touch, in a predetermined area of ​​the screen (touch), is detected, then it is determined that the response to the invitation indicates that the return trip is planned. Otherwise, it is determined that the response to the invitation does not indicate a return trip.

[0023] According to one embodiment, the method comprises a step of verifying whether a total length of the outward path is less than a threshold, the following steps being conditional on a total length of the outward path being less than the threshold: • Sending, to the motor vehicle screen, the instruction commanding the screen to display the invitation, and • Receiving a response to the invitation from the human-machine interface, and • The first determination of the first scenario (and the determination of the second scenario).

[0024] For example, the threshold is between 30 and 70 kilometers, for example is equal to 50 kilometers. Alternatively, the threshold may be less than 30 kilometers or greater than 70 kilometers.

[0025] The invention also relates to a computer program comprising instructions executable by a microprocessor or a microcontroller or a computer, for implementing the steps of the method according to the invention, when it is executed by the microprocessor or the microcontroller or the computer.

[0026] The method according to the invention can be implemented by an electronic device (or a motor vehicle). The invention therefore also relates to an electronic device (or a motor vehicle) configured to implement the steps of the method according to the invention, as well as a motor vehicle comprising the electronic device.

[0027] The characteristics and advantages of the computer program, the electronic device, and the vehicle are identical to those of the method according to the invention (without it being necessary to repeat them here).

[0028] When the electronic device, the motor vehicle, (or another element) is "configured to" (or "capable of") performing or implementing a step or an operation, this implies, for example, that the element comprises means for performing the step or the operation. The means preferably comprise electronic means, for example a computer program, data in memory, specialized electronic circuits, wired or wireless connections, a microprocessor and / or a microcontroller.

[0029] Other characteristics and advantages of the present invention will appear more clearly on reading the detailed description which follows, comprising embodiments of the invention given as non-limiting examples and illustrated by the appended drawings, in which: • [Fig.l] represents an electronic device and a motor vehicle, according to an embodiment of the invention, in top view, • [Fig.2] and [Fig.3] represent displays, by a vehicle screen at car of [Fig.l] made during stages of the implementation of the method shown [Fig.5], • [Fig.4] represents sequences of implementation of a combustion engine and an electric motor of the motor vehicle of [Fig.l] during steps of implementing the method shown [Fig.5], • [Fig.5] represents an implementation of the method according to the invention, according to a example of embodiment, by the electronic device and the motor vehicle of [Fig.l].

[0030] In [Fig.l], certain elements are, of course, seen through transparency.

[0031] Detailed description of an exemplary embodiment of the invention, with reference to Figures 1 to 5.

[0032] [Fig.l] represents a motor vehicle 100. The motor vehicle 100 comprises a passenger compartment 170, and a microprocessor 110 to which is connected: • A satellite geolocation module 130, for example of the so-called “GPS” type, • A 140 combustion engine, a 120 electric motor powered by a 160 battery, and a 150 touch screen located in the 170 passenger compartment.

[0033] With reference to [Fig. 5], in step S00, the motor vehicle 100 is stopped. The driver (not shown) of the motor vehicle 100 enters, in the window 151 displayed by the touch screen 150, as shown [Fig. 2], a destination DI [Fig. 4]. The microprocessor 110 then receives, from the touch screen 150, this destination DI.

[0034] In step S10, the current geographical location L1 of the motor vehicle 100, [Fig.4], can be received, by the microprocessor 110, from the satellite geolocation module 130.

[0035] In step S20, the microprocessor 110 obtains, in a known manner, a one-way route T A1, of 30 kilometers, from the current geographical location L1 of the motor vehicle 100 to the destination D1, from a road map, for example in the memory of the microprocessor 110.

[0036] In step S30, the microprocessor 110 checks whether the length of the path, namely 30 kilometers, is less than a threshold of 50 kilometers. If so, the method continues to step S40. Otherwise, the method ends.

[0037] In step S40, the microprocessor 110 then sends, to the screen 150, an instruction commanding, on the screen 150, to display, in a pop-up window 152, as shown [Fig.3], an invitation 152i to indicate whether a return trip is planned, from the destination D1 of the outward trip, to the current geographical location L1 of the motor vehicle 100, after the outward trip. The invitation 152i may include a text. This text may be “Is a return trip planned without recharging your battery?”.

[0038] In step S50, the driver enters a response to the invitation 152i, for example by pressing a button in the pop-up window 152, and the microprocessor 110 receives, from the touch screen 150, this response. If this response indicates that the return journey is planned, the method continues at step S60. Otherwise, the method ends.

[0039] In step S60, the microprocessor 110 obtains, in a known manner, a return path TRI [Fig.4], from the destination DI to the current geographical location L1 of the motor vehicle 100, from a road map, for example in the memory of the microprocessor 110.

[0040] In step S70, the microprocessor 110 determines, from the road map, that the portions U1 and U2 of the outward journey TA1 and of the return journey TRI are in an urban area and that the portion A2 is on a motorway.

[0041] In step S80, the microprocessor 110, from the charge level of the battery 160, which is 70%, determines the sequences SA1, SA2, SA3, SR1, SR2, SR3 to minimize the fuel consumption during these sequences and so that the battery 160 is emptied when the motor vehicle 100 reaches the current geographical location L1, at the end of the return journey TRI, from the destination D1, after having completed the outward journey TA1.

[0042] During sequence SA1 of the outward journey TA1 and SR3 of the return journey, taking place in the portion U1 in an urban area, the motor vehicle 100 is propelled by the electric motor 120 only.

[0043] During sequence SA2 of the outward journey and SR2 of the return journey, taking place in section A1 on the motorway, the electric motor 120 assists the thermal engine 140 in the acceleration of the motor vehicle only.

[0044] During sequence SA3 of the outward journey and SRI of the return journey, taking place in the U2 portion in an urban area, the motor vehicle 100 is propelled by the electric motor 120 only.

[0045] The portions Ul, U2 and Al, as well as the sequences SA1, SA2, SA3, SRI, SR2, SR3, the outward journey TA1 and the return journey TRI are represented [Fig.4].

[0046] In step S90, the microprocessor 110 controls the electric motor 120 and the combustion engine 140, so as to successively carry out the sequences SA1, SA2, SA3, SR1, SR2, SR3, in this order, when the motor vehicle 100 makes the outward journey TA1 and the return journey TR3.

[0047] According to a variant, not shown: • In step S50, the response to invitation 152i indicates that a return trip is not planned. • In step S60, the microprocessor 110 determines, from a road map in the memory of the microprocessor 110, that the portions Ul and U2 of the outward journey TA1 are in an urban area and that the portion A2 is on a motorway. • In step S70, the microprocessor 110, from the battery charge level 160, which is 70%, determines the sequences SA1, SA2, SA3 to minimize fuel consumption and so that the battery 160 is discharged when the motor vehicle 100 reaches the destination D1, at the end of the outward journey TA1, from the current geographical location L1. During sequence SA1 of the outward journey TA1, taking place in the U1 portion in an urban area, the motor vehicle 100 is propelled by the electric motor 120 only. During sequence SA2 of the outward journey, taking place in section Al on the motorway, the electric motor 120 assists the thermal engine 140 in the acceleration of the motor vehicle only. During sequence S A3, taking place in the U2 portion in an urban area, the motor vehicle 100 is powered by the electric motor 120 only. In step S80, the microprocessor 110 controls the electric motor 120 and the combustion engine 140, so as to carry out the first sequences SA1, SA2, SA3, in this order, when the motor vehicle 100 makes the outward journey TA1.

Claims

Claims

1. Method for planning an operation of a hybrid engine of a motor vehicle (100), the hybrid engine comprising a combustion engine (140) and an electric motor (120) powered by a battery (160), the method being implemented in the motor vehicle (100), characterized in that it comprises the following first steps: • Obtaining (S20) a one-way trip (TA1), from a current geographical location (Ll) of the motor vehicle (100), from a road map, to a destination (Dl), Sending (S40), to a screen (150) of the motor vehicle (100), an instruction commanding the screen (150) to display an invitation (152i), the invitation (152i) requesting to indicate whether a return trip (TRI) is planned, from the destination (Dl), to the current geographical location (Ll) of the motor vehicle (100), then Reception (S50) of a response to the invitation (152i), from a human-machine interface, then If the response to the invitation (152i) indicates that the return trip (TRI) is planned, then: • Obtaining (S60) the return route (TRI) from the road map, then • First determination (S80) of a first scenario, from a current level of electric charge of the battery (160), the first scenario comprising first sequences (SA1, SA2, SA3, SRI, SR2, SR3) of implementation of the combustion engine (140) and of the electric motor (120) during the outward journey (TA1) and the return journey (TRI), so that, when the first sequences are implemented (SA1, SA2, SA3, SRI, SR2, SR3): • To minimize fuel consumption of the combustion engine (140) during the outward journey (TA1) and the return journey (TRI), and When the battery (160) is empty, when the motor vehicle (100) reaches the current geographical location (Ll) of the motor vehicle (100), at the end of the return journey (TRI).

2. Planning method according to the preceding claim, the first steps comprising a step of second determination of a second scenario, from a current level of electric charge of the battery (160), after the step of receiving the response to the invitation (152i), if the response indicates that a return journey (TRI) is not planned, the second scenario comprising second sequences of implementation of the combustion engine (140) and of the electric motor (120) during the outward journey (TA1), so that, when the second sequences are implemented: • To minimize a fuel consumption of the combustion engine (140) during the outward journey (TA1) and, • So that the battery (160) is empty when the vehicle (100) reaches the destination (Dl), at the end of the outward journey (TA1),

3. Planning method, according to any one of the preceding claims, comprising the following step, implemented after the first steps and during the outward journey (TA1) and the return journey (TRI): • Control of the electric motor (120) and of the combustion engine (140) so as to carry out the first sequences (SA1, SA2, SA3, SRI, SR2, SR3) of operation of the combustion engine (140) and of the electric motor (120), if the response to the invitation indicates that a return journey is planned.

4. A planning method according to any preceding claim, each sequence of the first sequences of operation of the combustion engine (140) and the electric motor (120) comprises: Assistance of the combustion engine (140) by the electric motor (120) during acceleration of the motor vehicle (100), or • Propulsion of the motor vehicle (100) by only the combustion engine (140) or only the electric motor (120).

5. A scheduling method according to any preceding claim, wherein the instruction causes the screen (150) to display the invitation (152i) in a pop-up window (152).

6. Planning method according to any one of the preceding claims further comprising a step of verifying whether a total length of the outward journey (TA1) is less than a threshold, the following steps being conditional on a total length of the outward journey (TA1) being less than the threshold: • Sending, to the screen (150) of the motor vehicle (100), the instruction commanding the screen (150) to display the invitation (152i), and • Receiving a response to the invitation, (152i) from the human-machine interface (150), and • The first determination of the first scenario.

7. Planning method according to the preceding claim in which the threshold is between 30 and 70 kilometers.

8. Computer program comprising instructions, executable by a microprocessor or a microcontroller, for implementing the method according to any one of claims 1 to 7, when executed by the microprocessor or the microcontroller.

9. Electronic device (110) configured to implement the steps of the method according to any one of claims 1 to 7.

10. Motor vehicle (100) comprising the electronic device (110) according to the preceding claim.

Images