Steering-by-wire system and vehicle

Abstract

The invention provides a steer-by-wire system and a vehicle. The steer-by-wire system comprises a first guide rail, a second guide rail, a third guide rail, a first rack, a sliding table, a driving motor, a gear unit and a steering column. The first guide rail comprises a fixed section, a first movable section and a second movable section which are arranged in a split mode. The first movable section and the second movable section are located at the left end and the right end of the fixed section respectively. The second guide rail and the third guide rail are arranged at intervals in the left-right direction and extend in the front-back direction, the first movable section is in sliding fit with the second guide rail, and the second movable section is in sliding fit with the third guide rail. The first rack extends in the left-right direction and is fixed to the first guide rail. The sliding table is in sliding fit with the first guide rail. The driving motor and the gear unit are arranged on the sliding table, the gear unit is meshed with the first rack, and the driving motor drives the gear unit to rotate. The steering column is arranged on the sliding table. According to the scheme, the steering wheel can be freely switched between the left rudder and the right rudder, and the applicability of the vehicle is improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a steer-by-wire system and a vehicle. Background Art

[0002] At present, different countries or regions may have different laws and policies on vehicles and traffic. For example, in some countries or regions, vehicles drive on the right side of the road, while in other countries or regions, vehicles drive on the left side of the road. Correspondingly, in countries or regions where vehicles drive on the right, the steering wheel of the vehicle is usually set on the left. On the contrary, in countries or regions where vehicles drive on the left, the steering wheel of the vehicle is usually set on the right, such as Hong Kong and Macao in my country.

[0003] However, current vehicles only have one steering wheel, which is arranged on the left side or the right side, which cannot meet the regulations and policies on vehicles and traffic in different countries or regions.

[0004] Therefore, how to meet the vehicle and traffic regulations and policies in different countries or regions and realize the arbitrary switching of the steering wheel between left-hand drive and right-hand drive is a technical problem that urgently needs to be solved in the field of vehicle technology. Summary of the invention

[0005] The present application provides a wire-controlled steering system and a vehicle, which can realize arbitrary switching of the steering wheel between left-hand drive and right-hand drive, and meet the laws and regulations and policies on vehicles and traffic in different countries or regions.

[0006] This application is achieved through the following technical solutions:

[0007] In the first aspect, the present application provides a wire-controlled steering system. The wire-controlled steering system includes a first guide rail, a second guide rail, a third guide rail, a first rack, a slide, a drive motor, a gear unit and a steering column. The first guide rail extends in the left-right direction, and the first guide rail includes a fixed section, a first movable section and a second movable section that are separately arranged, and the first movable section and the second movable section are respectively located at the left and right ends of the fixed section. The second guide rail and the third guide rail are arranged at intervals in the left-right direction, and the second guide rail and the third guide rail both extend in the front-back direction. The first movable section and the second guide rail are slidably matched, and the second movable section and the third guide rail are slidably matched. The first rack extends in the left-right direction and is fixed to the first guide rail. The first rack includes a first section, a second section and a third section. The first section is fixed to the first movable section, the second section is fixed to the fixed section, and the third section is fixed to the second movable section. The slide is slidably matched with the first guide rail, and the slide has a first position located in the first movable section and a second position located in the second movable section, so as to correspond to the left-hand steering position and the right-hand steering position respectively. The driving motor and the gear unit are both arranged on the slide, the gear unit is meshed with the first rack, and the driving motor is used to drive the gear unit to rotate. The steering column is arranged on the slide, and one end of the steering column is used to connect the steering wheel.

[0008] The technical solution of the embodiment of the present application is to set the steering column on the slide, set the first rack on the first guide rail, and drive the gear unit to rotate through the driving motor. The gear unit is set on the slide and meshes with the first rack, so that the steering column can move in the left and right directions. The steering column is used to connect the steering wheel, so that the steering wheel can move to the left or right in the vehicle, which can meet the regulations and policies on vehicles and traffic in different countries or regions, and realize the steering wheel. Switch between left and right steering is arbitrarily to improve the applicability of the vehicle. At the same time, through the sliding cooperation between the first movable section and the second guide rail, and through the sliding cooperation between the second movable section and the second guide rail, when the steering column moves to the first movable section or the second movable section, it can move in the front and rear direction, so that the steering column and the steering wheel are put into the center console of the vehicle, reducing the space occupied by the steering column and saving space.

[0009] In some embodiments, the wire-controlled steering system also includes a second rack, which extends in the left-right direction. The second rack includes a fourth section, a fifth section and a sixth section. The fourth section is fixed to the first movable section, the fifth section is fixed to the fixed section, and the sixth section is fixed to the second movable section. The second rack is also meshed with the gear unit.

[0010] The technical solution of the embodiment of the present application improves the stability of the gear unit moving in the left and right directions and improves the stability of the steering column moving in the left and right directions by respectively meshing the first rack and the second rack with the gear unit.

[0011] In some embodiments, the gear unit includes a driving gear, a first driven gear and a second driven gear, the driving motor is connected to the driving gear, the first driven gear and the second driven gear are respectively meshed with the driving gear, the first driven gear is meshed with the first rack, and the second driven gear is meshed with the second rack.

[0012] The technical solution of the embodiment of the present application is connected to the driving motor through the driving gear, thereby driving the first driven gear to move on the first rack, and driving the second driven gear to move on the second rack, thereby improving the stability of the gear unit moving in the left and right directions, and improving the stability of the steering column moving in the left and right directions.

[0013] In some embodiments, in the left-right direction, a position where the first driven gear meshes with the first rack is different from a position where the second driven gear meshes with the second rack.

[0014] According to the technical solution of the embodiment of the present application, there may be a gap at the junction of the first movable segment or the second movable segment and the fixed segment, and the position where the first driven gear meshes with the first rack is set to be different from the position where the second driven gear meshes with the second rack. When one of the first driven gear and the second driven gear passes through the gap at the junction of the first movable segment or the second movable segment and the fixed segment, the other moves normally, thereby reducing the risk of the movement of the gear unit being affected and improving the reliability of the movement of the steering column.

[0015] In some embodiments, the first guide rail is provided with a slide groove, the slide groove has a groove bottom wall, a first groove side wall and a second groove side wall, the first groove side wall and the second groove side wall are arranged opposite to each other, the first rack is arranged on the first groove side wall, and the second rack is arranged on the second groove side wall.

[0016] According to the technical solution of the embodiment of the present application, a sliding groove is arranged on the first guide rail, and the first rack and the second rack are respectively arranged on the first groove side wall and the second groove side wall, thereby reducing the space occupied by the first rack and the second rack, saving space, and reducing the risk of damage to the gear unit and the first rack and the second rack when they are meshing and moving.

[0017] In some embodiments, the slide has a first surface facing the first groove side wall, a second surface facing the second groove side wall, and a third surface facing the groove bottom wall. The third surface is provided with a mounting groove, the gear unit is arranged in the mounting groove, and both ends of the mounting groove extend to the first surface and the second surface respectively.

[0018] The technical solution of the embodiment of the present application sets the gear unit in the installation groove of the third surface, which reduces the space occupied by the gear unit, saves space, and reduces the risk of damage to the gear unit. The two ends of the installation groove extend to the first surface and the second surface respectively, so that the gear unit can partially extend from the installation groove, thereby meshing with the first rack and the second rack, reducing the risk of interference between the gear unit and the first rack and the second rack when meshing and moving.

[0019] In some embodiments, the steer-by-wire system further includes a locking mechanism for selectively locking the slide in the first position or the second position.

[0020] The technical solution of the embodiment of the present application locks the slide in the first position or the second position through a locking mechanism, thereby locking the steering column in the first position or the second position, so that the position of the steering column can be fixed after it moves into place in the left and right directions, thereby improving the reliability of vehicle use.

[0021] In some embodiments, the locking mechanism is disposed on the slide. The first movable section is provided with a first matching portion for matching with the locking mechanism, and the second movable section is provided with a second matching portion for matching with the locking mechanism.

[0022] The technical solution of the embodiment of the present application improves the reliability of the connection between the slide and the first movable segment or the second movable segment, and improves the reliability of the movement of the steering column in the front-rear direction, by cooperating the locking mechanism with the first matching part of the first movable segment, and by cooperating the locking mechanism with the second matching part of the second movable segment.

[0023] In some embodiments, the steer-by-wire system further comprises a first drive mechanism and a second drive mechanism. The first drive mechanism is connected to the first movable segment and is used to drive the first movable segment to slide along the second guide rail. The second drive mechanism is connected to the second movable segment and is used to drive the second movable segment to slide along the third guide rail.

[0024] The technical solution of the embodiment of the present application is to connect the first movable section through a first driving mechanism, drive the first movable section to move, thereby driving the steering column to move in the front-rear direction, and to connect the second movable section through a second driving mechanism, drive the second movable section to move, thereby driving the steering column to move in the front-rear direction, thereby facilitating automatic adjustment of the steering column and improving the convenience of moving the steering column.

[0025] In a second aspect, the present application further provides a vehicle comprising the steer-by-wire system of any embodiment in the first aspect.

[0026] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A schematic diagram of the structure of a vehicle provided in some embodiments of the present application;

[0029] Figure 2 A schematic diagram of a steer-by-wire system provided in some embodiments of the present application;

[0030] Figure 3 A schematic diagram of the internal structure of a steer-by-wire system provided in some embodiments of the present application;

[0031] Figure 4 A schematic diagram of a gear unit provided in some embodiments of the present application being arranged on a slide;

[0032] Figure 5 for Figure 4 A schematic diagram from another perspective;

[0033] Figure 6 A schematic diagram of a gear unit provided for some embodiments of the present application;

[0034] Figure 7 A schematic diagram of a first guide rail provided in some embodiments of the present application;

[0035] Figure 8 A schematic diagram of another perspective of a steer-by-wire system provided in some embodiments of the present application.

[0036] Icons: 1-steer-by-wire system; 10-first guide rail; 11-slideway; 111-slide bottom wall; 112-first slide side wall; 113-second slide side wall; 12-fixed section; 13-first movable section; 131-first matching part; 14-second movable section; 141-second matching part; 20-first rack; 21-first section; 22-second section; 23-third section; 30-slideway; 31-first surface; 32-second surface; 33-third surface; 3 31-mounting slot; 34-locking mechanism; 40-drive motor; 50-gear unit; 51-driving gear; 52-first driven gear; 53-second driven gear; 60-steering column; 70-second rack; 71-fourth section; 72-fifth section; 73-sixth section; 80-second guide rail; 81-third guide rail; 90-first drive mechanism; 91-second drive mechanism; 100-vehicle; X-left and right direction; Y-front and rear direction; Z-up and down direction. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0039] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0040] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0042] The term "multiple" as used in this application refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple sheets" refers to more than two sheets (including two sheets).

[0043] Please refer to Figures 1 to 3 , Figure 1 A schematic diagram of the structure of a vehicle provided in some embodiments of the present application, Figure 2 A schematic diagram of a steer-by-wire system provided in some embodiments of the present application, Figure 3 This is a schematic diagram of the internal structure of a steer-by-wire system provided in some embodiments of the present application. Figure 2 The figure shows the left and right movement of the slide. In order to show the internal structure, Figure 3 A gap is left between the middle slide and the first guide rail. Figure 8 , Figure 8A schematic diagram of another perspective of a wire-controlled steering system provided by some embodiments of the present application. An embodiment of the present application provides a wire-controlled steering system 1. The wire-controlled steering system 1 includes a first guide rail 10, a second guide rail 80, a third guide rail 81, a first rack 20, a slide 30, a drive motor 40, a gear unit 50 and a steering column 60. The first guide rail 10 extends along the left-right direction X. The first guide rail 10 includes a fixed section 12, a first movable section 13 and a second movable section 14 arranged in sections, and the first movable section 13 and the second movable section 14 are respectively located at the left and right ends of the fixed section 12. The second guide rail 80 and the third guide rail 81 are arranged at intervals along the left-right direction X, and the second guide rail 80 and the third guide rail 81 both extend along the front-back direction Y. The first movable section 13 is slidably matched with the second guide rail 80, and the second movable section 14 is slidably matched with the third guide rail 81. The first rack 20 extends along the left-right direction X and is fixed to the first guide rail 10. The first rack 20 includes a first section 21, a second section 22 and a third section 23, wherein the first section 21 is fixed to the first movable section 13, the second section 22 is fixed to the fixed section 12, and the third section 23 is fixed to the second movable section 14. The slide 30 is slidably matched with the first guide rail 10. The slide 30 has a first position located at the first movable section 13 and a second position located at the second movable section 14, so as to correspond to the left-hand steering position and the right-hand steering position, respectively. The drive motor 40 and the gear unit 50 are both arranged on the slide 30, the gear unit 50 is meshed with the first rack 20, and the drive motor 40 is used to drive the gear unit 50 to rotate. The steering column 60 is arranged on the slide 30, and one end of the steering column 60 is used to connect the steering wheel.

[0044] In some embodiments, the steer-by-wire system 1 eliminates the mechanical connection between the steering wheel and the steering wheel, and uses electrical energy to achieve steering. The working principle of the steer-by-wire system 1 is to detect the driver's steering data through a sensor, then transmit the signal to the steering control system on the vehicle through a data bus, and drive the steering gear to steer through the steering control system.

[0045] In some embodiments, the first rail 10 may be disposed on a center console of the vehicle 100. The first rail 10 may extend along the left-right direction X, the left end of the first rail 10 may be located at the left front seat of the vehicle 100, and the right end of the first rail 10 may be located at the right front seat of the vehicle 100.

[0046] In some embodiments, the left-right direction may be represented by a direction indicated by a letter X. The left-right direction X may be parallel to the width direction of the vehicle 100 .

[0047] In some embodiments, in the left-right direction X, the first movable segment 13 is connected to one end of the fixed segment 12 , and the second movable segment 14 is connected to the other end of the fixed segment 12 .

[0048] In some embodiments, the first movable section 13, the second movable section 14 and the fixed section 12 may be three components, and the three components have the same structure. The first movable section 13 and the second movable section 14 may be located at the left and right ends of the fixed section 12, but there is no direct connection between the three. The three may all be fixed to the center console.

[0049] In some embodiments, the first rack 20 may be fixed to the first guide rail 10 , and the first rack 20 may be disposed parallel to the first guide rail 10 and extend along the left-right direction X.

[0050] In some embodiments, a dimension of the first rack 20 in the left-right direction X may be the same as a dimension of the first guide rail 10 in the left-right direction X.

[0051] In some embodiments, the slide 30 can be slidably matched with the first guide rail 10, and the steering column 60 can be fixedly connected to the slide 30, so that the steering column 60 can move along the extension direction of the first guide rail 10, that is, the steering column 60 can move along the left and right direction X.

[0052] It should be noted that one end of the steering column 60 is connected to the steering wheel, and the steering column 60 drives the steering wheel to move. The driver realizes the steering of the vehicle 100 through the steering wheel.

[0053] In some embodiments, the sliding cooperation between the slide 30 and the first guide rail 10 can be achieved by meshing the gear unit 50 with the first rack 20. The gear unit 50 is disposed on the slide 30, and the output end of the drive motor 40 is connected to the gear unit 50, thereby driving the gear unit 50 to rotate, so that the gear unit 50 moves on the first rack 20, and the gear unit 50 drives the slide 30 to slide on the first guide rail 10.

[0054] In some embodiments, the gear unit 50 may include a gear.

[0055] In some embodiments, the gear unit 50 may include a plurality of gears, one of which is connected to the driving motor 40 , and the other gears are meshed with the gear connected to the driving motor 40 .

[0056] In some embodiments, the gear unit 50 may be disposed outside the slide 30 .

[0057] In some embodiments, the gear unit 50 may be disposed inside the slide 30 , with a portion extending beyond the edge of the slide 30 , so that the extending portion meshes with the first rack 20 .

[0058] In some embodiments, the slide 30 can move on the first guide rail 10 through the gear unit 50, thereby driving the steering column 60 to move along the left-right direction X. That is, the steering column 60 can move between the fixed section 12, the first movable section 13 and the second movable section 14. When the steering column 60 moves to the first movable section 13, the first movable section 13 and the second guide rail 80 slide together, and the steering column 60 can be driven to move along the front-back direction Y, so that the steering column 60 and the steering wheel connected to the steering column 60 are hidden in the center console.

[0059] When the steering column 60 moves to the second movable section 14, the second movable section 14 slides with the third guide rail 81 to drive the steering column 60 to move along the front-rear direction Y, so that the steering column 60 and the steering wheel connected to the steering column 60 are hidden in the center console.

[0060] In some embodiments, corresponding to the first movable segment 13, the fixed segment 12 and the second movable segment 14, the first rack 20 includes a first segment 21, a second segment 22 and a third segment 23, the first segment 21 is arranged at the first movable segment 13, the second segment 22 is arranged at the fixed segment 12, and the third segment 23 is arranged at the second movable segment 14. In some embodiments, the first position of the slide 30 can be that the slide 30 is located at the left end of the first guide rail 10, that is, at the first movable segment 13. At this time, the wire control steering system 1 is used for the left-hand steering position of the vehicle 100.

[0061] The second position of the slide 30 may be that the slide 30 is located at the right end of the first guide rail 10, that is, located at the second movable section 14. At this time, the steer-by-wire system 1 is used for the left-hand steering position of the vehicle 100.

[0062] When the steering wheel is required to be located at the left side, the slide 30 can be located at the first position. When the steering wheel is required to be located at the right side, the slide 30 can be located at the second position.

[0063] The technical solution of the embodiment of the present application is to set the steering column 60 on the slide 30, set the first rack 20 on the first guide rail 10, drive the gear unit 50 to rotate by the driving motor 40, and the gear unit 50 is set on the slide 30 and meshed with the first rack 20, so that the steering column 60 can move along the left and right direction X, and the steering column 60 is used to connect the steering wheel, so that the steering wheel can move to the left or right in the vehicle 100, which can meet the regulations and policies on the vehicle 100 and traffic in different countries or regions, and realize the steering wheel. Switch between left and right steering is arbitrarily, improving the applicability of the vehicle 100. At the same time, through the sliding cooperation between the first movable section 13 and the second guide rail 80, and through the sliding cooperation between the second movable section 14 and the second guide rail 80, when the steering column 60 moves to the first movable section 13 or the second movable section 14, it can move along the front-back direction Y, so that the steering column 60 and the steering wheel are put into the center console of the vehicle 100, reducing the space occupied by the steering column 60 and saving space.

[0064] Please refer to Figure 3 In some embodiments, the steer-by-wire system 1 further includes a second rack 70 extending in the left-right direction X. The second rack 70 is fixed to the first guide rail 10 , and the second rack 70 is also meshed with the gear unit 50 .

[0065] In some embodiments, corresponding to the first movable segment 13, the fixed segment 12 and the second movable segment 14, the second rack 70 includes a fourth segment 71, a fifth segment 72 and a sixth segment 73, the fourth segment 71 is arranged on the first movable segment 13, the fifth segment 72 is arranged on the fixed segment 12, and the sixth segment 73 is arranged on the second movable segment 14.

[0066] In some embodiments, the second rack 70 may be disposed on the first guide rail 10 , and the second rack 70 and the first rack 20 may be spaced apart.

[0067] In some embodiments, the first rack 20 and the second rack 70 may be spaced apart along the front-rear direction Y. The front-rear direction may be represented by the direction indicated by letter Y in the figure, and the front-rear direction Y may be parallel to the length direction of the vehicle 100 .

[0068] In some embodiments, the first rack 20 and the second rack 70 may be spaced apart along the up-down direction Z. The up-down direction may be represented by the direction indicated by the letter Z in the figure, and the up-down direction Z may be parallel to the height direction of the vehicle 100 .

[0069] In some embodiments, the structure and parameters of the second rack 70 may be the same as those of the first rack 20 .

[0070] In some embodiments, the gear unit 50 may be disposed between the first rack 20 and the second rack 70 .

[0071] In some embodiments, the gear unit 50 may include a gear, one end of which is meshed with the first rack 20 , and the other end of which is meshed with the second rack 70 .

[0072] In some embodiments, the gear unit 50 may include a plurality of gears, the gear at one end of the gear unit 50 meshes with the first rack 20 , and the gear at the other end of the gear unit 50 meshes with the second rack 70 .

[0073] The technical solution of the embodiment of the present application improves the stability of the gear unit 50 moving along the left-right direction X and improves the stability of the steering column 60 moving along the left-right direction X by respectively meshing the first rack 20 and the second rack 70 with the gear unit 50 .

[0074] Please refer to Figures 4 to 6 , Figure 4 A schematic diagram of a gear unit provided in some embodiments of the present application being arranged on a slide, Figure 5 for Figure 4 Another perspective diagram, Figure 6 Schematic diagram of a gear unit provided for some embodiments of the present application. In some embodiments, the gear unit 50 includes a driving gear 51, a first driven gear 52 and a second driven gear 53, the driving motor 40 is connected to the driving gear 51, the first driven gear 52 and the second driven gear 53 are respectively meshed with the driving gear 51, the first driven gear 52 is meshed with the first rack 20, and the second driven gear 53 is meshed with the second rack 70.

[0075] In some embodiments, the output end of the driving motor 40 can be connected to the driving gear 51, thereby driving the driving gear 51 to rotate. At the same time, the first driven gear 52 and the second driven gear 53 are respectively engaged with the driving gear 51, so that the driving gear 51 drives the first driven gear 52 and the second driven gear 53 to rotate.

[0076] In some embodiments, the first driven gear 52 and the second driven gear 53 are respectively meshed with the first rack 20 and the second rack 70 , so that the slide 30 can slide along the first guide rail 10 .

[0077] In some embodiments, the first driven gear 52 and the second driven gear 53 may be respectively disposed at two ends of the driving gear 51 in the front-rear direction Y.

[0078] In some embodiments, the axis of the driving gear 51 may be parallel to the up-down direction Z. The axis of the driving gear 51 , the axis of the first driven gear 52 , and the axis of the second driven gear 53 may all be parallel.

[0079] In some embodiments, the diameter of the driving gear 51 may be greater than the diameter of the first driven gear 52 , and the diameter of the driving gear 51 may be greater than the diameter of the second driven gear 53 , thereby increasing the speed at which the slide 30 moves along the first guide rail 10 and improving transmission efficiency.

[0080] In some embodiments, the structure and parameters of the first driven gear 52 may be the same as those of the second driven gear 53 , so that the movement of the slide 30 is relatively stable.

[0081] In some embodiments, the number of teeth of the first driven gear 52 meshing with the first rack 20 and the number of teeth of the second driven gear 53 meshing with the second rack 70 may be the same.

[0082] The technical solution of the embodiment of the present application is connected to the driving motor 40 through the driving gear 51, thereby driving the first driven gear 52 to slide on the first rack 20, and driving the second driven gear 53 to slide on the second rack 70, thereby improving the stability of the gear unit 50 moving along the left-right direction X, and improving the stability of the steering column 60 moving along the left-right direction X.

[0083] Please refer to Figure 4 and Figure 5 In some embodiments, in the left-right direction X, the position where the first driven gear 52 meshes with the first rack 20 is different from the position where the second driven gear 53 meshes with the second rack 70 .

[0084] In some embodiments, the first driven gear 52 and the second driven gear 53 are arranged to be spaced apart in the front-to-back direction Y. With the front-to-back direction Y as the projection direction, the projection of the first driven gear 52 and the projection of the second driven gear 53 can be completely spaced apart. Alternatively, the projection of the first driven gear 52 and the projection of the second driven gear 53 can partially overlap.

[0085] In some embodiments, there may be a gap at the junction of the first movable section 13 and the fixed section 12, that is, there may be a gap at the junction of the first section 21 and the second section 22 of the first rack 20, and there may be a gap at the junction of the fourth section 71 and the fifth section 72 of the second rack 70. When the gear unit 50 moves from the fixed section 12 to the first movable section 13 or from the first movable section 13 to the fixed section 12, there is a risk of affecting the movement of the gear unit 50 when passing through the gap at the junction of the first section 21 and the second section 22, and passing through the gap at the junction of the fourth section 71 and the fifth section 72. Therefore, the first driven gear 52 and the second driven gear 53 are staggered in the left-right direction X, and when one of the first driven gear 52 and the second driven gear 53 passes through the gap at the junction of the first movable section 13 and the fixed section 12, the other moves normally, thereby reducing the risk of the movement of the gear unit 50 being affected and improving the reliability of the movement of the steering column 60.

[0086] Similarly, there may be a gap at the junction of the second movable section 14 and the fixed section 12, that is, there may be a gap at the junction of the second section 22 and the third section 23 of the first rack 20, and there may be a gap at the junction of the fifth section 72 and the sixth section 73 of the second rack 70. When the gear unit 50 moves from the fixed section 12 to the second movable section 14 or from the second movable section 14 to the fixed section 12, there is a risk of affecting the movement of the gear unit 50 when passing through the gap at the junction of the second section 22 and the third section 23, and passing through the gap at the junction of the fifth section 72 and the sixth section 73. Therefore, the first driven gear 52 and the second driven gear 53 are staggered in the left-right direction X, and when one of the first driven gear 52 and the second driven gear 53 passes through the gap at the junction of the second movable section 14 and the fixed section 12, the other moves normally, thereby reducing the risk of the gear unit 50 being affected and improving the reliability of the movement of the steering column 60.

[0087] According to the technical solution of the embodiment of the present application, in the left-right direction X, the position where the first driven gear 52 meshes with the first rack 20 and the position where the second driven gear 53 meshes with the second rack 70 are set to different positions, thereby reducing the risk of the movement of the gear unit 50 being affected and improving the reliability of the movement of the steering column 60.

[0088] Please refer to Figure 3 , and refer to Figure 7 , Figure 7 Schematic diagram of the first guide rail provided for some embodiments of the present application. In some embodiments, the first guide rail 10 is provided with a slide groove 11, the slide groove 11 has a groove bottom wall 111, a first groove side wall 112 and a second groove side wall 113, the first groove side wall 112 and the second groove side wall 113 are arranged opposite to each other, the first rack 20 is arranged on the first groove side wall 112, and the second rack 70 is arranged on the second groove side wall 113.

[0089] In some embodiments, the first guide rail 10 has two surfaces in the up-down direction Z, the slide groove 11 may be disposed on the lower surface, and the slide groove 11 may extend to two surfaces of the first guide rail 10 in the left-right direction X.

[0090] In some embodiments, the first groove side wall 112 and the second groove side wall 113 of the slide groove 11 can be relatively arranged along the front-to-back direction Y, the opening of the slide groove 11 is located on the lower surface, and the groove bottom wall 111 is connected to the first groove side wall 112 and the second groove side wall 113 at both ends in the front-to-back direction Y respectively.

[0091] In some embodiments, the first rack 20 is disposed on the first slot sidewall 112 , and the second rack 70 is disposed on the second slot sidewall 113 .

[0092] The first rack 20 and the second rack 70 may be three independent components from the first guide rail 10 , and the first rack 20 and the second rack 70 are disposed on the first guide rail 10 by welding.

[0093] The first rack 20 and the second rack 70 may be integrally formed with the first guide rail 10 , or the first rack 20 may be machined on the first groove side wall 112 and the second rack 70 may be machined on the second groove side wall 113 .

[0094] According to the technical solution of the embodiment of the present application, the first guide rail 10 is provided with a slide groove 11, and the first rack 20 and the second rack 70 are respectively arranged on the first groove side wall 112 and the second groove side wall 113, thereby reducing the space occupied by the first rack 20 and the second rack 70, saving space, and reducing the risk of damage to the gear unit 50 and the first rack 20 and the second rack 70 during meshing and movement.

[0095] Please refer to Figures 3 to 7 In some embodiments, the slide 30 has a first surface 31 facing the first groove side wall 112, a second surface 32 facing the second groove side wall 113, and a third surface 33 facing the groove bottom wall 111. The third surface 33 is provided with a mounting groove 331, and the gear unit 50 is disposed in the mounting groove 331, and both ends of the mounting groove 331 extend to the first surface 31 and the second surface 32 respectively.

[0096] In some embodiments, at least a portion of the slide 30 may be located below the first guide rail 10 .

[0097] In some embodiments, the first surface 31 and the second surface 32 of the slide table 30 may be two surfaces of the slide table 30 in the front-rear direction Y. The first surface 31 and the second surface 32 are disposed in the front-rear direction Y opposite to each other.

[0098] In some embodiments, the third surface 33 of the slide table 30 may be an upper surface of the slide table 30 in the up-down direction Z.

[0099] In some embodiments, the third surface 33 may be provided with a mounting groove 331, and the mounting groove 331 may have three groove portions, which are connected in sequence. The gear unit 50 may include a driving gear 51, a first driven gear 52, and a second driven gear 53. The driving gear 51, the first driven gear 52, and the second driven gear 53 are respectively arranged in the three groove portions. Among them, the first driven gear 52 is arranged in the groove portion extending to the first surface 31 of the slide 30, the second driven gear 53 is arranged in the groove portion extending to the second surface 32 of the slide 30, and the driving gear 51 is arranged in the middle groove portion. The first driven gear 52 protrudes from the first surface 31, and the second driven gear 53 protrudes from the second surface 32.

[0100] In some embodiments, the slide groove 11 can be a dovetail groove, wherein in the up-down direction Z, the inner diameter of the upper end of the slide groove 11 is larger than the inner diameter of the lower end, so that when the slide 30 is set in the slide groove 11, the risk of the slide 30 falling off can be reduced.

[0101] The technical solution of the embodiment of the present application sets the gear unit 50 in the mounting groove 331 of the third surface 33, which reduces the space occupied by the gear unit 50, saves space, and reduces the risk of damage to the gear unit 50. The two ends of the mounting groove 331 extend to the first surface 31 and the second surface 32 respectively, so that the gear unit 50 can partially extend from the mounting groove 331, thereby meshing with the first rack 20 and the second rack 70, reducing the risk of interference between the gear unit 50 and the first rack 20 and the second rack 70 when meshing and moving.

[0102] Please refer to Figure 2 and Figure 8 In some embodiments, the steer-by-wire system 1 further includes a locking mechanism 34, and the locking mechanism 34 is used to selectively lock the slide 30 in the first position or the second position.

[0103] In some embodiments, when the slide 30 is located at the first position or the second position, the steering wheel is in place, and the steering wheel is ready to work. The locking mechanism 34 fixes the slide 30 to fix the position of the steering column 60, thereby fixing the steering wheel.

[0104] The technical solution of the embodiment of the present application locks the slide 30 in the first position or the second position through the locking mechanism 34, thereby locking the steering column 60 in the first position or the second position, so that the position of the steering column 60 after moving into position in the left and right directions can be fixed, thereby improving the safety and reliability of vehicle use.

[0105] Please refer to Figure 2 , Figure 4 , Figure 5 and Figure 8 In some embodiments, the locking mechanism 34 is disposed on the slide 30 . The first movable section 13 is provided with a first matching portion 131 for matching with the locking mechanism 34 , and the second movable section 14 is provided with a second matching portion 141 for matching with the locking mechanism 34 .

[0106] In some embodiments, the locking mechanism 34 may be an electromagnetic locking tongue, and the first matching portion 131 and the second matching portion 141 may be locking grooves.

[0107] In some embodiments, when the slide 30 moves to the first movable section 13 , the locking mechanism 34 may be engaged with the first engaging portion 131 , and the first movable section 13 drives the slide 30 to slide along the second guide rail 80 .

[0108] In some embodiments, when the slide 30 moves to the second movable section 14 , the locking mechanism 34 may be engaged with the second engaging portion 141 , and the second movable section 14 drives the slide 30 to slide along the third guide rail 81 .

[0109] In some embodiments, the locking mechanism 34 may be disposed on the upper surface of the slide 30 , and the first matching portion 131 and the second matching portion 141 may be disposed on the bottom wall 111 of the slide slot 11 .

[0110] When the slide 30 slides on the first guide rail 10, the locking mechanism 34 can be retracted into the slide 30. When the slide 30 moves below the first matching portion 131 or the second matching portion 141, the locking mechanism 34 can rise to match the first matching portion 131 or the second matching portion 141.

[0111] The technical solution of the embodiment of the present application improves the reliability of the connection between the slide 30 and the first movable segment 13 or the second movable segment 14, and improves the reliability of the movement of the steering column 60 along the front-rear direction Y, by cooperating the locking mechanism 34 with the first matching portion 131 of the first movable segment 13, and by cooperating the locking mechanism 34 with the second matching portion 141 of the second movable segment 14.

[0112] Please refer to Figure 8 In some embodiments, the steer-by-wire system 1 further includes a first drive mechanism 90 and a second drive mechanism 91. The first drive mechanism 90 is connected to the first movable segment 13, and is used to drive the first movable segment 13 to slide along the second guide rail 80. The second drive mechanism 91 is connected to the second movable segment 14, and is used to drive the second movable segment 14 to slide along the third guide rail 81.

[0113] In some embodiments, the first driving mechanism 90 may be a motor, a cylinder or other power components.

[0114] In some embodiments, the second driving mechanism 91 may be a motor, a cylinder or other power parts.

[0115] In some embodiments, when the slide 30 moves to the first movable section 13 , the first driving mechanism 90 drives the first movable section 13 to slide along the second guide rail 80 , thereby achieving forward and backward movement of the steering column 60 .

[0116] In some embodiments, when the slide 30 moves to the second movable section 14 , the second driving mechanism 91 drives the second movable section 14 to slide along the third guide rail 81 , thereby achieving forward and backward movement of the steering column 60 .

[0117] The technical solution of the embodiment of the present application is connected to the first movable section 13 through the first driving mechanism 90, driving the first movable section 13 to move, thereby driving the steering column 60 to move along the front-rear direction Y, and connected to the second movable section 14 through the second driving mechanism 91, driving the second movable section 14 to move, thereby driving the steering column 60 to move along the front-rear direction Y, so as to realize automatic adjustment of the steering column 60 and improve the convenience of moving the steering column 60.

[0118] Please refer to Figure 1 , an embodiment of the present application further provides a vehicle 100, comprising the steer-by-wire system 1 of any of the above embodiments.

[0119] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A steer-by-wire system, characterized in that: include: A first guide rail extending in the left-right direction, the first guide rail comprising a fixed section, a first movable section and a second movable section which are separately arranged, the first movable section and the second movable section being respectively located at left and right ends of the fixed section; The second guide rail and the third guide rail are arranged at intervals in the left-right direction, the second guide rail and the third guide rail both extend in the front-back direction, the first movable section is slidably matched with the second guide rail, and the second movable section is slidably matched with the third guide rail; A first rack extending in the left-right direction, the first rack comprising a first section, a second section and a third section, the first section being fixed to the first movable section, the second section being fixed to the fixed section, and the third section being fixed to the second movable section; a slide, slidably matched with the first guide rail, the slide having a first position located at the first movable section and a second position located at the second movable section, so as to correspond to a left-hand steering position and a right-hand steering position respectively; A driving motor and a gear unit are both arranged on the slide, the gear unit is meshed with the first rack, and the driving motor is used to drive the gear unit to rotate; as well as A steering column is arranged on the slide, and one end of the steering column is used for connecting the steering wheel.

2. The steer-by-wire system according to claim 1, characterized in that: The steer-by-wire system further comprises: a second rack extending in the left-right direction, the second rack comprising a fourth section, a fifth section and a sixth section, the fourth section being fixed to the first movable section, the fifth section being fixed to the fixed section, and the sixth section being fixed to the second movable section; The gear unit also meshes with the second rack.

3. The steer-by-wire system according to claim 2, characterized in that: The gear unit includes a driving gear, a first driven gear and a second driven gear, the driving motor is connected to the driving gear, the first driven gear and the second driven gear are respectively meshed with the driving gear, the first driven gear is meshed with the first rack, and the second driven gear is meshed with the second rack.

4. The steer-by-wire system according to claim 3, characterized in that: In the left-right direction, a position where the first driven gear meshes with the first rack gear and a position where the second driven gear meshes with the second rack gear are different.

5. The steer-by-wire system according to claim 2, characterized in that: The first guide rail is provided with a slide groove, and the slide groove has a groove bottom wall, a first groove side wall and a second groove side wall, the first groove side wall and the second groove side wall are arranged opposite to each other, the first rack is arranged on the first groove side wall, and the second rack is arranged on the second groove side wall.

6. The steer-by-wire system according to claim 5, characterized in that: The slide table has a first surface facing the first groove side wall, a second surface facing the second groove side wall and a third surface facing the groove bottom wall; The third surface is provided with a mounting groove, the gear unit is arranged in the mounting groove, and two ends of the mounting groove extend to the first surface and the second surface respectively.

7. The steer-by-wire system according to any one of claims 1 to 6, characterized in that: The steer-by-wire system further includes a locking mechanism, which is used to selectively lock the slide at the first position or the second position.

8. The steer-by-wire system according to claim 7, characterized in that: The locking mechanism is arranged on the slide, the first movable section is provided with a first matching portion for matching with the locking mechanism, and the second movable section is provided with a second matching portion for matching with the locking mechanism.

9. The steer-by-wire system according to claim 1, characterized in that: The steer-by-wire system further comprises: a first driving mechanism, connected to the first movable segment, and used to drive the first movable segment to slide along the second guide rail; The second driving mechanism is connected to the second movable section and is used to drive the second movable section to slide along the third guide rail.

10. A vehicle, characterized in that: Comprising a steer-by-wire system as claimed in any one of claims 1 to 9.

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