METHOD FOR AUTOMATIC MANOEUVRING OF AN ELECTRIC OR HYBRID MOTOR VEHICLE

Abstract

The invention relates to a method for automatic maneuvers of an electric or hybrid motor vehicle (1) comprising a parking step, said trunk (4) being positioned at a first distance (d1) from said electric recharging means (3); a step of plugging the recharging cable into the recharging base and into said recharging means (3); a step of first automatic maneuver, said trunk (4) being positioned at a second distance from said recharging means (3); a step of interrupting said recharging period at the driver's command, said vehicle (1) performing a second automatic maneuver, said trunk (4) being positioned at a third distance from said recharging means (3). Figure 1

Description

Title of the invention: METHOD FOR AUTOMATIC MANOEUVRING OF AN ELECTRIC OR HYBRID MOTOR VEHICLE

[0001] The invention relates to electric or hybrid motor vehicles, and more particularly to the movement of these vehicles when they are connected to a recharging means.

[0002] Known from the prior art is patent application EP3393845 which describes a charging device for an electric or hybrid vehicle in an automated parking lot. The automated parking lot comprises a vertical column comprising a power outlet. Furthermore, said column comprises a first part and a second part. The column comprises a support element positioned perpendicular to said first part of the column. The charging device comprises a recess allowing the introduction of a tooth of a vehicle moving carriage. Furthermore, the second part of said column comprises a plurality of electrical contacts wired to the power outlet. The automated parking lot comprises a parking area comprising a plurality of coupling contacts configured to couple with said plurality of electrical contacts.The support element comprises a plurality of magnetized elements allowing the removable adhesion of the charging device to a support plate. In addition, said charging device comprises a plurality of removable locking means for holding said charging device when said charging device is positioned on said support plate. To recharge the electric or hybrid vehicle in said automated parking, it is necessary to position said vehicle in an insertion and extraction station. The charging device is placed on said support plate without connecting the electrical contacts of said charging device. The connection between said vehicle and the power outlet is established via an electrical connection cable. This causes the joint movement of said vehicle and said charging device towards the predetermined parking area equipped with coupling contacts by a moving trolley.The coupling contacts then connect with the electrical contacts. However, there are still drawbacks. The movement of the vehicle is automatic and does not take into account the driver's wishes. In fact, the driver cannot control the movement of the vehicle in the parking area himself in order to access a particular part of his vehicle, for example, his trunk.

[0003] The objective of the present invention is to remedy these drawbacks and to allow a driver to move a vehicle when it is connected to a means of recharging.

[0004] To achieve this objective, the invention proposes a method for automatic maneuvers of an electric or hybrid motor vehicle comprising a front running gear and a rear running gear whose points of contact with the ground define a base plane defined by a first longitudinal direction corresponding to straight-line driving, by a second transverse direction orthogonal to the first longitudinal direction and a third vertical direction orthogonal to the first direction and to the second direction and is oriented away from the ground, said vehicle comprising wheels, a battery and a recharging base, said battery being configured to be electrically recharged by a recharging means, said recharging means being configured to deliver an electric current during a recharging period, said recharging means being connected to said recharging base by a recharging cable,said charging cable comprising a first end and a second end, said first end being configured to plug into said charging base, said second end being configured to plug into the charging means, said vehicle comprising a trunk positioned at the rear of said vehicle in the first direction, said trunk being capable of containing said charging cable outside the charging period, said vehicle comprising a parking assistance system and a parking locking device, said parking assistance system comprising at least one parking sensor being positioned on said trunk to measure a distance between said trunk and said charging means, said parking locking device being configured to prevent movement of said vehicle during the charging period,remarkable in that said method comprises the following steps: , - a step of parking the vehicle in reverse in the first direction in a parking space comprising said electrical recharging means by a driver, said recharging means being positioned opposite the trunk in the first direction, said trunk being positioned at a first distance from said electrical recharging means, said first distance being determined by said parking sensor; - a step of plugging said first end of the electric charging cable into the charging base of said vehicle and the second end of the charging cable into said driver charging means; - a first automatic maneuver step during which said vehicle moves towards said reloading means in the first direction, the wheels of said vehicle being aligned in said first direction, said trunk being positioned at a second distance from said recharging means when said first automatic maneuver is completed, said second distance being less than said first distance, said vehicle being locked by said parking locking device so as to prevent it from moving following said first automatic maneuver, the recharging period beginning when the vehicle is locked; - a step of interrupting said recharging period on command from the driver causing said vehicle to be unlocked by said parking locking device, said vehicle performing a second automatic maneuver during which said vehicle moves in the opposite direction to said first maneuver in the first direction when said vehicle is unlocked, said trunk being positioned at a third distance from said recharging means when said second automatic maneuver is completed, said third distance being greater than said second distance.

[0005] Thanks to the invention, the vehicle can be moved on command by the user despite the fact that it is still connected to the recharging means.

[0006] Advantageously, said method comprises a step of opening said trunk by the driver to take said charging cable and a step of closing said trunk, said opening step and said closing step being carried out after said parking step and before said interruption step, said method comprising a step of automatically opening said trunk after said interruption step.

[0007] Thus, the driver can have access to the trunk to retrieve or store the charging cable.

[0008] Advantageously, said recharging means is an electric recharging terminal or an electric socket.

[0009] Advantageously, said first distance, said second distance and said third distance are each less than 2 m.

[0010] Preferably, said first distance is equal to said third distance.

[0011] Thus, the vehicle returns to its initial position when recharging is complete.

[0012] Preferably, said vehicle comprises an engine and a torque measuring means. engine, during the first automatic maneuver step or during the interruption step, when said vehicle performs said first automatic maneuver or said second automatic maneuver, said vehicle moving in a direction opposite to the direction of the first automatic maneuver or to the direction of the second automatic maneuver according to the first direction when the engine torque measured by said engine torque measuring means is greater than a predetermined threshold value.

[0013] This prevents crushing an obstacle or collision with an obstacle present in the path of said vehicle.

[0014] The invention also relates to a computer program comprising instructions which, when the program is executed by a computer, cause the latter to implement the steps of the method for automatic maneuvers of an electric or hybrid motor vehicle previously described.

[0015] Furthermore, the invention relates to an electric or hybrid motor vehicle configured to implement said method of automatic maneuvers of an electric or hybrid motor vehicle previously described.

[0016] The invention will be further detailed by the description of non-limiting embodiments, and on the basis of the appended figures illustrating variants of the invention, in which: - [Fig.l] schematically illustrates an electric or hybrid motor vehicle following a parking stage; - [Fig.2] schematically illustrates the vehicle illustrated in [Fig.l] following a first automatic maneuver step.

[0017] [Fig.l] and 2 schematically illustrate an electric or hybrid motor vehicle 1 comprising a front running gear and a rear running gear whose points of contact with the ground define a base plane XY defined by a first longitudinal direction X corresponding to straight-line driving, by a second transverse direction Y orthogonal to the first longitudinal direction X and a third vertical direction Z orthogonal to the first direction X and to the second direction Y and is oriented away from the ground. The vehicle 1 comprises wheels 2, a battery and a recharging base. The battery is configured to be electrically recharged by a recharging means 3. The recharging means 3 is configured to deliver an electric current during a recharging period. In [Fig.l] and [Fig.2], said recharging means is an electric recharging terminal, public or private.In another embodiment, said charging means 3 is an electrical outlet. The charging means 3 and the charging base are configured to be connected by an electrical charging cable. The charging cable comprises a first end configured to plug into said charging base during a charging period and a second end configured to plug into said charging means 3. The vehicle 1 comprises a trunk 4 positioned at the rear of said vehicle 1 in the first direction X. The trunk 4 is capable of containing said charging cable outside of said charging period. Thus, when said charging cable is not in use, that is to say when the vehicle 1 is not being charged, the charging cable is stored in said trunk 4. The vehicle 1 comprises a parking assistance system.The parking assistance system is designed to assist the driver in parking the vehicle 1 accurately and safely, in particular . in restricted spaces such as parking lots or narrow parking spaces. The parking assistance system comprises at least one parking sensor being positioned on said trunk to measure a distance between said trunk and said recharging means. In addition, said vehicle 1 comprises a parking locking device configured to prevent the vehicle 1 from moving during the recharging period. Thus, when said vehicle 1 is being recharged, it is impossible to move said vehicle 1. This notably avoids the risks of damage to the recharging base, the recharging cable and / or the recharging means 3 when the vehicle 1 moves too far away from said recharging means 3 when said vehicle 1 is linked to the recharging means 3. During a parking step, the vehicle 1 is parked in a parking space, in reverse in the first direction X, by the driver. The parking space comprises said recharging means 3. The recharging means 3 is positioned behind said vehicle 1, opposite the trunk 4, in the first direction X. [Fig.l] illustrates said vehicle 1 during said parking step. The vehicle 1 is positioned at a first distance dl from said electric recharging means 3, said first distance dl being determined by said parking sensor. During a plugging step, the driver plugs the first end of the recharging cable into said recharging base of the vehicle 1. In addition, said driver plugs said second end of the recharging cable into said recharging means 3. During a first automatic maneuver step, the vehicle 1 moves towards said recharging means 3.The wheels 2 of said vehicle 1 are aligned in said first direction X so that said vehicle 1 moves towards said recharging means 3 in said first direction X. When said first maneuver is completed, said vehicle 1 is positioned at a second distance d2 from said recharging means 3, said second distance d2 being less than said first distance d1. Following the first automatic maneuver, said vehicle 1 is locked by said parking locking device. The recharging period begins when said vehicle 1 is locked. [Fig.2] illustrates said vehicle 1 following the first automatic maneuver step. During an interruption step, said recharging period is interrupted at the driver's command. Indeed, it is the driver's will that causes the end of the recharging period.The interruption of the charging period by the driver can be carried out from the charging station, in particular by presenting a card with an RFID chip (acronym meaning Radio Frequency Identification). The charging period can also be interrupted from a mobile terminal configured to communicate with said vehicle 1 or with said charging station. In this case, the driver. issues a stop instruction from the mobile terminal, for example via a functionality of a mobile application. The stop instruction is then communicated to the vehicle 1 or to the charging station, which causes the interruption of the charging period. Finally, said vehicle 1 may include a stop command. The stop command may be a functionality on a touch screen positioned in said vehicle 1 or a control button, positioned on a dashboard of said vehicle 1 or in a housing comprising said charging base. Stopping the charging causes the vehicle 1 to be unlocked by said parking locking device. The vehicle 1 then performs a second automatic maneuver during which said vehicle 1 moves in the opposite direction to said first maneuver along the first direction X. In other words, said vehicle 1 moves in the opposite direction to the first direction X.When said second automatic maneuver is completed, said trunk 4 is positioned at a third distance d3 from said recharging means 3. The third distance d3 is greater than said second distance d2. The first distance d1, the second distance d2 and the third distance d3 are preferably less than 2 m, so that said vehicle 1 remains, at least partially, in said parking space. Preferably, the first distance d1 and the third distance d3 are equal. Thus, the vehicle 1 returns to its initial position after the recharging period. The vehicle 1 comprises an engine and, possibly, a means for measuring the engine torque.During the first automatic maneuver step or during the interruption step, when said vehicle 1 performs said first automatic maneuver or said second automatic maneuver, the vehicle 1 moves in a direction opposite to the direction of the first automatic maneuver or to the direction of the second automatic maneuver along the first direction X when the engine torque measured by said engine torque measuring means is greater than a predetermined threshold value. Indeed, an increase in the engine torque indicates the presence of an obstacle on the path of said vehicle 1. Thus, it is preferable for the vehicle 1 to move back a few centimeters in order to avoid crushing or colliding with the obstacle. Optionally, said method comprises three additional steps. The first additional step is a step of opening said trunk 4 by said driver to take said charging cable.The second additional step is a step of closing said trunk 4 by the driver when said driver is in possession of said charging cable. The opening step and the closing step are carried out between said parking step and said interruption step. The third additional step is a step of automatically opening said trunk 4. Thus, the driver directly stores said charging cable in said trunk 4 before getting into said vehicle 1.

[0018] The invention also relates to a computer program configured to implement said method. Finally, the invention relates to an electric or hybrid motor vehicle 1 configured to implement said method.

Claims

1. Claims Method for automatic maneuvers of an electric or hybrid motor vehicle (1) comprising a front running gear and a rear running gear whose points of contact with the ground define a base plane (XY) defined by a first longitudinal direction (X) corresponding to straight-line driving, by a second transverse direction (Y) orthogonal to the first longitudinal direction (X) and a third vertical direction (Z) orthogonal to the first direction (X) and to the second direction (Y) and is oriented away from the ground, said vehicle (1) comprising wheels (2), a battery and a recharging base, said battery being configured to be electrically recharged by a recharging means (3), said recharging means (3) being configured to deliver an electric current during a recharging period, said recharging means (3) being connected to said recharging base by a recharging cable,said charging cable comprising a first end and a second end, said first end being configured to plug into said charging base, said second end being configured to plug into the charging means (3), said vehicle (1) comprising a trunk (4) positioned at the rear of said vehicle (1) in the first direction (X), said trunk (4) being capable of containing said charging cable outside the charging period, said vehicle (1) comprising a parking assistance system and a parking locking device, said parking assistance system comprising at least one parking sensor being positioned on said trunk to measure a distance between said trunk and said charging means, said parking locking device being configured to prevent the movement of said vehicle (1) during the charging period,characterized in that said method comprises the following steps:, - a step of parking the vehicle (1) in reverse in the first direction (X) in a parking space (5) comprising said electric recharging means (3) by a driver, said recharging means (3) being positioned opposite the trunk (4) in the first direction (X), said trunk (4) being positioned at a first distance (dl) from said electric recharging means (3), said first distance (dl) being determined by said parking sensor; - a step of plugging said first end of the electric charging cable into the charging base of said vehicle (1) and the second end of the charging cable into said charging means (3) by the driver;- a first automatic maneuver step during which said vehicle (1) moves towards said reloading means (3) in the first direction (X), the wheels (2) of said vehicle (1) being aligned in said first direction (X), said trunk (4) being positioned at a second distance (d2) from said reloading means (3) when said first automatic maneuver is completed, said second distance (d2) being less than said first distance (dl), said vehicle (1) being locked by said parking locking device so as to prevent it from moving following said first automatic maneuver, the reloading period starting when the vehicle (1) is locked;- a step of interrupting said recharging period on command of the driver causing the unlocking of said vehicle (1) by said parking locking device, said vehicle (1) performing a second automatic maneuver during which said vehicle (1) moves in the opposite direction to said first maneuver in the first direction (X) when said vehicle (1) is unlocked, said trunk (4) being positioned at a third distance (d3) from said recharging means (3) when said second automatic maneuver is completed, said third distance (d3) being greater than said second distance (d2).;

2. Method according to claim 1 characterized in that said method comprises a step of opening said trunk (4) by the driver to take said recharging cable and a step of closing said trunk (4), said opening step and said closing step being carried out after said parking step and before said interruption step, said method comprising a step of automatically opening said trunk (4) after said interruption step.

3. Method according to claim 1 or 2 characterized in that said recharging means (3) is an electric recharging terminal or an electric socket.

4. Method according to any one of claims 1 to 3 characterized in that said first distance (dl), said second distance (d2) and said third distance (d3) are each less than 2 m.

5. Method according to any one of claims 1 to 4 characterized in that said first distance (dl) is equal to said third distance (d3).

6. Method according to any one of claims 1 to 5 characterized in that said vehicle (1) comprises an engine and a means for measuring the engine torque, during the first automatic maneuver step or during the interruption step, when said vehicle (1) performs said first automatic maneuver or said second automatic maneuver, said vehicle (1) moving in a direction opposite to the direction of the first automatic maneuver or to the direction of the second automatic maneuver in the first direction (X) when the engine torque measured by said engine torque measuring means is greater than a predetermined threshold value.

7. Computer program comprising instructions which, when the program is executed by a computer, cause the latter to implement the steps of the method for automatic maneuvers of an electric or hybrid motor vehicle (1) according to any one of claims 1 to 6.

8. Electric or hybrid motor vehicle (1) configured to implement said method of automatic maneuvers of an electric or hybrid motor vehicle (1) according to any one of claims 1 to 6.

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