Device for lifting and stabilizing a vehicle
Patent Information
- Application Number
- EP2024702378
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-02-07
- Filing Date
- 2024-02-01
- Publication Date
- 2025-12-17
AI Technical Summary
Current jack systems either lift or stabilize vehicles but not both effectively, lacking a combination of speed, simplicity, and reliability for simultaneous lifting and stabilization.
A system integrating an upper and lower plate with main and secondary connecting rods, a reversible motor, and an endless screw for precise lifting and stabilization, allowing the vehicle to be lifted or stabilized while maintaining horizontal stability, with a compact design for easy storage.
Enables safe and efficient lifting or stabilization of vehicles, ensuring no body torsion stress and providing a secure, compact solution for various vehicle maneuvers, including wheel exchange and horizontal loading/unloading, with enhanced safety features like automatic motor control and lockable access.
Smart Images

Figure EP2024052482_15082024_PF_FP
Abstract
Description
[0001] TITLE: VEHICLE LIFTING AND STABILIZATION SYSTEM
[0002] Technical field
[0003] The present invention relates to jack systems for lifting or stabilizing a side of a vehicle, for example a motor vehicle or a utility vehicle equipped with storage boxes.
[0004] The present invention aims to constitute a system which allows both the lifting and the stabilization of the vehicle, for example to facilitate lateral unloading of the vehicle or to intervene on a wheel of the vehicle.
[0005] Previous techniques
[0006] Jack systems are known which allow lifting or stabilization of the side of a vehicle using a fluid compression mechanism.
[0007] On the other hand, there are separate systems that allow the stabilization of the vehicle, through hydraulic mechanisms.
[0008] No known system combines both a vehicle side lifting mechanism and vehicle stabilization.
[0009] Statement of the invention
[0010] The invention aims to overcome at least some of the aforementioned drawbacks and to propose a system capable of combining the advantages of speed, simplicity and reliability for its implementation, and this to combine both lifting and stabilization of the vehicle.
[0011] In view of the foregoing, the subject of the invention is a system for lifting and stabilizing a vehicle comprising an upper plate capable of supporting said vehicle during its lifting or stabilization by said system, a lower plate intended to provide the vehicle with a connection to the ground during its lifting or stabilization, lifting or stabilizing means capable of moving the upper plate away from or closer to the lower plate and comprising a first main connecting rod and a second main connecting rod connected by a main pivot connection to the first main connecting rod, the first main connecting rod and the second main connecting rod each comprising on the one hand an upper end connected to the upper plate and on the other hand a lower end connected to the lower plate by a groove in the lower plate,the lifting or stabilization system further comprising a reversible motor configured to drive the main connecting rods in one direction or the other around the main pivot connection, the system further comprising a reinforcement system comprising a lower secondary connecting rod linked to the lower plate and to the second main connecting rod and an upper secondary connecting rod connecting said lower secondary connecting rod to the upper plate and linked to the first main connecting rod by a first secondary pivot connection and to the second main connecting rod by a second secondary pivot connection.,
[0012] Preferably, the lifting or stabilizing means comprise a worm screw and the reversible motor is coupled to said worm screw and configured to be able to drive the latter in rotation on itself, and at least one of the upper ends is linked in a helical connection to said worm screw so that a rotational drive of the worm screw on itself causes the translation of said upper end along said worm screw.
[0013] For example, the worm screw has two opposite screwing directions and the upper ends are each linked in a helical connection to said worm screw in a screwing direction opposite to the other, so that a rotational drive of the worm screw on itself by the reversible motor drives the two upper ends in translation in opposite directions along said worm screw.
[0014] Advantageously, the first main connecting rod is reinforced by a main reinforcing connecting rod placed in parallel with said first main connecting rod and connected to it by its lower end, by the first secondary pivot connection and by the main pivot connection, and in which the lower secondary connecting rod is reinforced by a secondary reinforcing connecting rod placed in parallel with said lower secondary connecting rod and connected to it by its lower end, by its upper end and by the second secondary pivot connection.
[0015] According to one embodiment, the system is adapted to fit into a parallelepiped of the order of six hundred millimeters by one hundred millimeters by one hundred millimeters in the folded state.
[0016] The invention also relates to a vehicle body comprising such a system, configured for lifting or stabilizing a first lateral side of the vehicle.
[0017] Advantageously, the vehicle body further comprises a second lifting or stabilizing system configured for lifting or stabilizing a second lateral flank of the vehicle opposite the first lateral flank of the vehicle.
[0018] The invention also relates to a vehicle comprising such a vehicle body and a lockable access hatch configured to lock or unlock access to the system and to allow its retraction or projection into or out of the vehicle. The invention also relates to a method for implementing the system in the vehicle, comprising the following steps: verifying that the vehicle is switched off, establishing a vehicle start-up ban, unlocking the access hatch on a side of the vehicle via a vehicle control system, protruding the system out of the vehicle through the access hatch, activating the reversible motor in a first direction until a desired lifting of at least one wheel of the vehicle or until a desired stabilization of the vehicle relative to the ground by the spacing of the lower and upper plates.
[0019] The method may further comprise the following steps: checking that the vehicle has been switched off, activating the reversible motor in a second direction opposite to the first direction until the vehicle is lowered to the ground by bringing the lower and upper plates together, retracting the system into the vehicle through the access hatch, locking the access hatch via the vehicle control system, and ending the vehicle start-up ban.
[0020] Brief description of the drawings
[0021] The invention will be better understood from a detailed study of an embodiment taken as a non-limiting example and illustrated by the appended drawings, in which:
[0022] [Fig 1] represents a vehicle comprising a system according to the invention, in perspective view.
[0023] [Fig 2] shows the vehicle in section and its system access hatch. [Fig 3] shows the system in the unfolded position in perspective view. [Fig 4] shows the system in the folded position in top view.
[0024] Detailed description
[0025] Figure 1 illustrates, in perspective view, a lifting and stabilization system for a vehicle 1 according to the invention, integrated on said vehicle 2.
[0026] The XYZ reference system, conventionally used in automobile design, designates the front-rear longitudinal direction of the vehicle by the X axis oriented towards the rear of said vehicle, the transverse direction by the Y axis oriented towards the right of said vehicle, and the vertical direction by the Z axis oriented towards the top of said vehicle.
[0027] As illustrated in Figure 2, the lifting and stabilizing system 1 is integrated into the vehicle 2 by an access hatch 3 which extends parallel to the longitudinal axis X and which allows said system 1 to be retracted or projected when it is fixed to the body of the vehicle 2.
[0028] The system 1 is positioned on a side of the vehicle 2, preferably in a plane passing through the X and Y axes and through the center of gravity of the vehicle 2.
[0029] The mechanisms of system 1 are integrated inside the body of vehicle 2 and fixed to the body of vehicle 2, in particular to its chassis.
[0030] The access hatch 3 allows the system 1 to be stored in the vehicle 2 and protected against external aggression, for example by means of a pivoting cover of the access hatch which is integrated into the skin of the bodywork.
[0031] The access hatch 3 also makes it possible to hide the system 1 from view and to have no impact on the aerodynamics of the vehicle 2.
[0032] As illustrated by Figure 3, the system 1 comprises an upper plate 4 capable of supporting said vehicle 2 during its lifting or stabilization by said system 1, a lower plate 5 intended to provide the vehicle 2 with a connection to the ground during its lifting or stabilization, and lifting or stabilization means 6 capable of moving the upper plate 4 away from or closer to the lower plate 5.
[0033] The upper plate 4 is intended to support the vehicle 2 during its lifting or stabilization.
[0034] By "lifting" is meant the lifting of a first side of the vehicle 2 relative to a second side of the vehicle 2 opposite the first side.
[0035] Thus, for a four-wheeled vehicle, the two wheels on the same side of vehicle 2 which are lifted during lifting no longer have contact with the ground, while the ground connection of vehicle 2 is ensured by one or two other wheels of vehicle 2 opposite the lifted wheels and by system 1.
[0036] When lifting, the vehicle 2 pivots along an axis substantially parallel to the longitudinal axis X, passing through the two ground contacts provided by the wheels on the opposite side.
[0037] Thanks to this operation, no torsional stress of the body in the raised position is observed, and the stability of the raised vehicle 2 is increased since the car rises parallel to the ground on three ground connection points, namely system 1 and the opposite wheels of vehicle 2.
[0038] The deployment of the connecting rods can be carried out for lifting up to the maximum deployment of the system 1, which allows for example to change one of the raised wheels of the vehicle 2, or be carried out partially up to an intermediate deployment position in which all the wheels of the vehicle 2 continue to provide a connection to the ground, for stabilization, and in which the system 1 is deployed sufficiently so that the lower plate 5 touches the ground and provides an additional connection to the ground to the vehicle 2 to stabilize it.
[0039] For stabilization, one example of system 1 can be deployed on each side of vehicle 2.
[0040] Stabilization therefore consists of a deployment of the system 1 outside the vehicle 2 such that the lower plate 5 reaches the ground without lifting the two wheels on the same side of the vehicle 2 as the system 1, so as to ensure a horizontal holding function of the vehicle 2.
[0041] For example, the stabilization position corresponds to a deployment of system 1 of the order of one hundred and sixty-five millimeters along the Z axis, allowing contact with the ground from the underbody of vehicle 2.
[0042] The upper plate 4 is configured to be able to fix the system 1 to the body of the vehicle, for example by means of drillings allowing it to be screwed onto said body of the vehicle 2.
[0043] The fixing of the upper plate 4 allows the rigidity of the lifting or stabilization system by removing degrees of freedom compared to conventional jack systems which generally present the danger of being able to rotate on themselves around the X axis or around the Z axis.
[0044] The lifting or stabilizing means 6 comprise a first main connecting rod 7 and a second main connecting rod 11 linked by a main pivot connection 18 to the first main connecting rod 7.
[0045] The use of connecting rods allows for rapid deployment and very space-saving folding.
[0046] The two main connecting rods 7, 11 are therefore crossed relative to each other and are able to rotate relative to each other around the main pivot connection 18 located substantially in their centers, which moves their ends further apart or closer together along the Z axis.
[0047] The section of the connecting rods 7, 1 1 is for example twenty millimeters by five millimeters when they are made of steel.
[0048] To optimize the weight of the entire connecting rod assembly, it is possible to use stamped sheet metal connecting rods incorporating stiffeners.
[0049] The system 1 further comprises a reinforcement system comprising a lower secondary connecting rod 9 and an upper secondary connecting rod 10.
[0050] The lower secondary connecting rod 9 is connected to the lower plate 5 and to the second main connecting rod 1 1.
[0051] The upper secondary connecting rod 10 connects said lower secondary connecting rod 9 to the upper plate 4 and linked to the first main connecting rod 7 by a first secondary pivot connection 20 and to the second main connecting rod 11 by a second secondary pivot connection 17.
[0052] The first main connecting rod 7 and the second main connecting rod 11 each comprise on the one hand an upper end 21, 22 connected to the upper plate and on the other hand a lower end 13, 15 connected to the lower plate 5 by a groove 12, 14 in the lower plate 5.
[0053] The first groove 14 allows the lower end 15 of the first main connecting rod 7 to slide parallel to the longitudinal axis X during rotation of said first main connecting rod 7 around the main pivot connection 18.
[0054] The second groove 12 allows the lower end 13 of the second main connecting rod 11 to slide parallel to the longitudinal axis X during rotation of said second main connecting rod 11 around the main pivot connection 18.
[0055] The first and second grooves 12, 14 can be doubled on either side of the main connecting rods 8, 11 so as to improve and balance the translational guidance of the lower ends 13, 15, as illustrated in Figure 3.
[0056] The reinforcement system makes it possible to maximize stabilization by supporting the need for horizontality of the vehicle 2 during certain maneuvers, for example loading and unloading a volume of the vehicle 2.
[0057] In particular, during the loading and unloading operations of the vehicle 2, for example by a manual stacker or using a mechanized machine such as a forklift, ease of positioning is conditioned by positioning the vehicle 2 as horizontally as possible.
[0058] In addition, the system 1 is also a jack for lifting or stabilizing the vehicle 2, allowing for example the exchange of a wheel.
[0059] The presence of the grooves 12, 14 in which the lower ends 13, 15 of the main connecting rods 9, 11 can slide, as well as that of the lower 9 and upper 10 secondary connecting rods, make it possible to obtain this horizontality of the vehicle 2 during lifting.
[0060] The lifting or stabilizing system 6 further comprises a reversible motor 25, which may be an electrically powered motor, configured to drive the main connecting rods 7, 11 in one direction or the other around the main pivot connection 18.
[0061] Advantageously, the first main connecting rod 7 is reinforced by a main reinforcing connecting rod 8 placed in parallel with said first main connecting rod 7 and connected to the latter by its lower end 15, by the first secondary pivot connection 20 and by the main pivot connection 18.
[0062] The lower secondary connecting rod may be further reinforced by a secondary reinforcing connecting rod 9 placed in parallel with said lower secondary connecting rod 9 and connected to the latter by its lower end 16, by its upper end 19 and by the second link its secondary pivot 17.
[0063] Preferably, the lifting or stabilizing means 6 comprise a worm screw 23 and the reversible motor 25 is coupled to said worm screw 23 and configured to be able to drive the latter in rotation on itself, and at least one of the upper ends 21, 22 is linked in a helical connection to said worm screw 23.
[0064] The worm screw 23 is for example held to the upper plate 4 by its two ends 24 which are held by two ring bearings of the upper plate 4.
[0065] Thus, a rotational drive of the worm screw 23 on itself causes the translation of said upper end 21, 22 along said worm screw 23.
[0066] Thus, the reversible motor 25 allows the use of the system 1 for its deployment or folding without mechanical manipulation by the user.
[0067] It can be provided that the activation of the reversible motor 25 and its direction of activation are controlled by a vehicle control system and coupled to an electrical power supply of the vehicle 2, so as to allow the user to use the system 1 directly from the dashboard of the vehicle 2 grouping together other controls of the vehicle 2.
[0068] The control system comprises, for example, three independent controls for positions pre-recorded by system 1 on one side of the vehicle 2, allowing right or left controls with the positions “stored”, in which the system 1 is completely retracted into the access hatch 3, “stabilizer” in which the system 1 is deployed in an intermediate position so that the lower plate 5 reaches the ground without lifting a wheel of the vehicle 2, and “jack”, in which the deployment of the connecting rods is maximum and at least one wheel of the vehicle 2 is raised from the ground.
[0069] The reversible motor 25 can rotate in a first direction to rotate the worm screw 23 in the direction of the separation of the lower 5 and upper 4 plates, for the deployment of the system 1 allowing the lifting or stabilization of a vehicle 2.
[0070] For example, the worm screw 23 has two opposite screwing directions and the upper ends 21, 22 are each linked in a helical connection to said worm screw 23 in a screwing direction opposite to the other, so that a rotational drive of the worm screw 23 on itself by the reversible motor 25 drives the two upper ends 21, 22 in translation in opposite directions along said worm screw 23.
[0071] Thus, in this configuration illustrated by Figure 3, the two upper ends 21, 22 are moved symmetrically relative to the reversible motor 25 thanks to the rotation of the worm screw 23.
[0072] This configuration of the two-way worm screw 23 allows the optimization of the dimensioning of the lifting or stabilization function, which allows the system 1 to be integrated into the small volume of the access hatch 3 located between a longitudinal side member of the vehicle body 2 and the skin of the bottom of the vehicle body 2.
[0073] Driving the reversible motor 25 in a first direction causes the two upper ends 21, 22 to move together relatively, and these ends are driven towards the centre of the worm screw 23, which pushes the lower plate 5 towards the ground and deploys the system 1 substantially parallel to the Z axis.
[0074] The reinforcement system allows the maintenance of parallelism between the lower 5 and upper 4 plates, during the lowering and raising movements of the lower plate 5 serving as a support base for the vehicle 2 with the upper plate 5 fixed on a longitudinal side member on a side of the body of the vehicle 2.
[0075] The lower plate 5 remains substantially parallel to the upper plate serving as a fixed attachment to the body of the vehicle 2, in particular to the chassis of the vehicle 2, during its deployment.
[0076] Driving the reversible motor 25 in a second direction opposite to the first direction causes the two upper ends 21, 22 to move apart relative to each other, which are driven towards opposite ends 24 of the worm screw 23, which folds the connecting rods 8, 9, 10, 11 and brings the lower plate 5 closer to the upper plate 4 and folds the system 1 substantially parallel to the Z axis towards its folded shape.
[0077] This folded shape is illustrated by Figure 4, in which the connecting rods 7, 8, 9, 10, 11, linked by pivot links 16, 17, 18, 19, 20 and placed two by two in staggered relation to each other, are folded to their maximum substantially parallel to the longitudinal axis X to be contained in the lockable access hatch 3.
[0078] The system 1 is, for example, adapted to fit into a parallelepiped of the order of six hundred millimeters by one hundred millimeters by one hundred millimeters in the folded state, which makes it possible to achieve a particularly small footprint.
[0079] The system 1 is, for example, adapted to fit into a parallelepiped of the order of five hundred and seventy millimeters by ninety-four millimeters by eighty-two millimeters in the folded state, which makes it possible to achieve a particularly small footprint.
[0080] The length of the lower plate is for example between five hundred and seventy-six millimeters and a maximum dimension of one thousand six hundred millimeters, which allows that a force between seven hundred and twenty kilo-Newtons and three thousand four hundred and ninety kilo-Newtons exerted on a wheel raised in the jack position of the system 1 does not allow the vehicle 2 to be destabilized.
[0081] These values are significant enough to conclude that safety in jack mode, with one or two wheels off the ground, is assured.
[0082] The entire system's mounting plate is fixed relative to the vehicle chassis, so no rotational or sliding movement is possible.
[0083] In addition, the dimensioning of the support base prevents any movement of the latter relative to the chassis.
[0084] We can thus imagine that the car in jack position on system 1 rests on a beam, distributing its load over a large support surface.
[0085] This safety aspect is a point that no other jacks can claim because the majority of them only rely on specific support points on the vehicle chassis and a small support surface on the ground.
[0086] It is often very difficult to put them in place correctly both at the chassis level and to maintain a correct vertical position when raising it, not to mention the external elements which cause the vehicle to move: passage of a heavy goods vehicle, strong wind, etc.
[0087] In one embodiment, the system 1 is integrated into a vehicle body, and is configured for lifting or stabilizing a first lateral flank of a vehicle 2 on which said body is mounted.
[0088] Said body may further comprise a second system 1 configured for lifting or stabilizing a second lateral flank of the vehicle 2 opposite the first lateral flank of the vehicle 2 on which said body is mounted.
[0089] Thus, a user can control the lifting or stabilization of any of the two sides of the vehicle 2 using the system 1.
[0090] The invention also relates to a vehicle 2 which comprises both such a vehicle body and a lockable access hatch 3 configured to lock or unlock access to the system 1 and to allow its retraction or projection into or out of the vehicle 2.
[0091] Thus, the vehicle 2 which includes the system 1 can provide for conditioning the use of said system 1 on states of other components of the vehicle 2, by authorizing or not the unlocking of said system 1.
[0092] For example, a method for implementing the system in the vehicle comprises the following steps: checking that the vehicle 2 is switched off, implementing a starting ban on the vehicle 2, unlocking the access hatch 3 on a side of the vehicle 2 via a control system of the vehicle 2, for example a touch screen of a driver's station of the vehicle 2, protruding the system 1 from the vehicle 2 through the access hatch 3, activating the reversible motor 25 in a first direction until a desired lifting of at least one wheel of the vehicle 2 or until a desired stabilization of the vehicle 2 relative to the ground by the spacing of the lower and upper plates 4, 5.
[0093] This method allows the user to position the system 1 in a lifting position or in a stabilizer position in complete safety, since there is no risk of unwanted starting or movement of the vehicle 2.
[0094] This method may include a step of verifying the actuation of at least one braking system of the vehicle 2, for example the activation of the handbrake. The method may further comprise the following steps: verifying that the vehicle 2 has been switched off, activating the reversible motor 25 in a second direction opposite to the first direction until the vehicle 2 is lowered to the ground by bringing the lower and upper plates 4, 5 together, retracting the system 1 into the vehicle 2 through the access hatch 3, locking the access hatch 3 via the control system of the vehicle 2, and ending the prohibition on starting the vehicle 2.
[0095] This process allows the safe retraction of the system 1 into the access hatch 3 after its use, without risk of starting the vehicle.
[0096] This method may provide a step of verifying the actuation of at least one braking system of the vehicle 2, for example the activation of the handbrake. It is also possible, thanks to the preceding methods, to prevent the dangerous starting of the vehicle 2 with the system 1 deployed, as well as the dangerous deployment of the system 1 outside the access hatch 3 while the vehicle is started or moving.
[0097] For the “stabilizer” function, a coupling of the control system with a gyroscope of the vehicle 2 can be provided so as to be able to integrate the consideration of an orientation of the vehicle 2 relative to a horizontal plane into the deployment control function of the system 1 for the stabilization of the vehicle 2.
[0098] For example, it is possible to provide for conditioning the possibility of deployment of the system 1 as a function of an angle of the vehicle 2, or to individually adjust the hardness of certain shock absorbers of the vehicle 2 as a function of the inclination of the latter to increase its horizontality when a stabilization command by the system 1 is carried out.
[0099] A system 1 is thus produced that can be integrated into any type of vehicle and a method for its implementation, allowing the lifting of at least one wheel of the vehicle 2, or the stabilization of a side of the vehicle 2 which integrates said system 1, in a motorized and secure manner, adapted to maintain a maneuvering plane parallel to the longitudinal axis X of the vehicle 2, unlike known jacks whose maneuvering plane is perpendicular to the longitudinal axis of the vehicle 2, which ensures greater maneuvering safety and commissioning by the user without any manual action on the system 1, and this for a wide variety of terrain inclinations.
Claims
CLAIMS 1. System (1) for lifting and stabilizing a vehicle (2), the system comprising an upper plate (4) capable of supporting said vehicle (2) during its lifting or stabilization by said system (1), a lower plate (5) intended to provide the vehicle (2) with a connection to the ground during its lifting or stabilization, lifting or stabilizing means (6) capable of moving the upper plate (4) away from or closer to the lower plate (5) and comprising a first main connecting rod (7) and a second main connecting rod (11) connected by a main pivot connection (18) to the first main connecting rod (7), the first main connecting rod (7) and the second main connecting rod (11) each comprising on the one hand an upper end (21, 22) connected to the upper plate and on the other hand a lower end (13, 15) connected to the lower plate (5) by a groove (12, 14) in the lower plate (5),the lifting or stabilizing system (6) further comprising a reversible motor (25) configured to drive the main connecting rods (7, 11) in one direction or the other around the main pivot connection (18), the system (1) further comprising a reinforcement system comprising a lower secondary connecting rod (9) connected to the lower plate (5) and to the second main connecting rod (11) and an upper secondary connecting rod (10) connecting said lower secondary connecting rod (9) to the upper plate (4) and connected to the first main connecting rod (7) by a first secondary pivot connection (20) and to the second main connecting rod (11) by a second secondary pivot connection (17)., 2. System (1) according to claim 1, in which the lifting or stabilizing means (6) comprise a worm screw (23) and the reversible motor (25) is coupled to said worm screw (23) and configured to be able to drive the latter in rotation on itself, and at least one of the upper ends (21, 22) is linked in a helical connection to said worm screw (23) so that a rotational drive of the worm screw (23) on itself causes the translation of said upper end (21, 22) along said worm screw (23).
3. System (1) according to claim 2, in which the worm screw (23) has two opposite screwing directions and the upper ends (21, 22) are each linked in a helical connection to said worm screw (23) in a screwing direction opposite to the other, so that a rotational drive of the worm screw (23) on itself by the reversible motor (25) drives the two upper ends (21, 22) in translation in opposite directions along said worm screw (23).
4. System (1) according to any one of claims 1 to 3, in which the first main connecting rod (7) is reinforced by a connecting rod main reinforcement (8) placed in parallel with said first main connecting rod (7) and connected to it by its lower end (15), by the first secondary pivot connection (20) and by the main pivot connection (18), and in which the lower secondary connecting rod is reinforced by a secondary reinforcement connecting rod (9) placed in parallel with said lower secondary connecting rod (9) and connected to it by its lower end (16), by its upper end (19) and by the second secondary pivot connection (17).
5. System (1) according to any one of claims 1 to 4, wherein adapted to fit into a parallelepiped of the order of six hundred millimeters by one hundred millimeters by one hundred millimeters in the folded state.
6. Vehicle body comprising a system (1) according to any one of claims 1 to 5 configured for lifting or stabilizing a first lateral side of the vehicle (2).
7. Vehicle body according to claim 6, further comprising a second system (1) according to any one of claims 1 to 5 configured for lifting or stabilizing a second lateral flank of the vehicle (2) opposite the first lateral flank of the vehicle (2).
8. Vehicle (2) comprising a vehicle body according to any one of claims 6 and 7 and a lockable access hatch (3) configured to lock or unlock access to the system (1) and to allow its retraction or projection into or out of the vehicle (2).
9. Method for implementing a system (1) according to any one of claims 1 to 5 by a computer included in a vehicle (2) according to claim 8, comprising the following steps: checking that the vehicle (2) has been switched off, setting up a starting ban on the vehicle (2), unlocking the access hatch (3) on a side of the vehicle (2) via a control system of the vehicle (2), protruding the system (1) from the vehicle (2) through the access hatch (3), activating the reversible motor (25) in a first direction until a desired lifting of at least one wheel of the vehicle (2) or until a desired stabilization of the vehicle (2) relative to the ground by the spacing of the lower and upper plates (4, 5).
10. Method according to claim 9, further comprising the following steps: verifying that the vehicle (2) has been switched off, activation of the reversible motor (25) in a second direction opposite to the first direction until a desired lowering of the vehicle (2) relative to the ground by bringing the lower and upper plates (4, 5) together, retraction of the system (1) into the vehicle (2) through the access hatch (3), locking of the access hatch (3) via the control system of the vehicle (2), end of the starting prohibition of the vehicle (2).