A steering column assembly, control method, and vehicle

Abstract

A kind of steering column assembly, control method and vehicle, it is related to automobile steering field, steering column assembly includes steering column, the first end of steering column is connected to steering wheel, and the second end is rotatably connected to steering column adjusting mechanism;Locking mechanism is arranged in steering column adjusting mechanism, and steering column is locked;Angle adjusting assembly adjusts the angle of steering column;Length adjusting assembly adjusts the length of steering column;Adjusting button is arranged on steering column;Steering column adjusting controller is electrically connected with adjusting button, angle adjusting assembly, length adjusting assembly and locking mechanism respectively, for receiving the instruction of adjusting button, and according to instruction control steering column to carry out angle and length adjustment and locking.The present application only needs to operate adjusting button, can control steering column adjusting angle and length, does not need to manually move steering wheel, solves the problem that steering wheel may exist jamming, abnormal sound etc. Inconvenient, not comfortable enough.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile steering control, and in particular to a steering column assembly, a control method and a vehicle. Background Art

[0002] At present, with the technological development of domestic and foreign commercial vehicle models and the increasing requirements of users for high comfort and high quality, the matching of electrically adjustable steering columns is showing an increasing trend; at the same time, with the increasing maturity of intelligent and electrified technologies in the automotive industry, high-quality smart cockpits and smart driving are also becoming the key competitive advantages of future vehicle products. The steering column not only serves as a tool for the driver to transmit torque, but also carries the role of a more comfortable human-machine position and a more intelligent adjustment method.

[0003] Currently, steering columns commonly used in commercial vehicles fall into two main categories: mechanically unlocked, manually adjustable steering columns and pneumatically unlocked, manually adjustable steering columns. The first type of steering column manually opens and closes the adjustment handle to loosen and tighten the steering column's adjustment mechanism; the second type of steering column opens and closes the pneumatic adjustment switch to control the opening and closing of the air cylinder, thereby loosening and tightening the steering column's adjustment mechanism. After these operations, manually adjusting the steering wheel to adjust the steering column's angle and length can lead to issues such as sticking and unusual noises, making adjustment less convenient and comfortable. Summary of the Invention

[0004] The purpose of the present invention is to provide a steering column assembly, a control method and a vehicle, which solve the problem that manually moving the steering wheel to adjust the steering column angle and length position may cause jamming, abnormal noise and other inconveniences and lack of comfort.

[0005] The present invention provides the following solutions:

[0006] In a first aspect, the present invention describes a steering column assembly comprising:

[0007] a steering column, a first end of the steering column being connected to the steering wheel;

[0008] a steering column adjustment mechanism, wherein the second end of the steering column is rotatably connected to the steering column adjustment mechanism; a locking mechanism is provided in the steering column adjustment mechanism, and the locking mechanism locks the steering column;

[0009] an angle adjustment assembly connected to the second end of the steering column, driving the second end of the steering column to rotate relative to the steering column adjustment mechanism to adjust the angle of the steering column;

[0010] a length adjustment assembly connected to the steering column adjustment mechanism, and adjusting the length of the steering column by driving the steering column adjustment mechanism to slide;

[0011] An adjustment button is provided on the steering column;

[0012] The steering column adjustment controller is electrically connected to the adjustment button, the angle adjustment component, the length adjustment component and the locking mechanism, and is used to receive instructions from the adjustment button and control the steering column to adjust the angle and length and lock according to the instructions.

[0013] Preferably, it further comprises a driver selection button and a central controller; the driver selection button is arranged on the steering column;

[0014] The central controller is electrically connected to the ignition switch, the adjustment button, the driver selection button, and the steering column adjustment controller respectively; the central controller is used to obtain signals from the ignition switch, the adjustment button, and the driver selection button, and send instructions to the steering column adjustment controller based on the signals; the steering column adjustment controller is used to receive the instructions from the central controller and control the steering column to adjust the angle and length and lock the steering column according to the instructions;

[0015] A safety distance verification module is provided in the central controller, and the safety distance verification module is used to monitor the distance between the steering column and the seat in real time.

[0016] Preferably, the steering column adjustment mechanism further comprises a fixing member, a movable shaft, a supporting member and a connecting assembly;

[0017] The fixing member is fixedly connected to the vehicle body; the movable shaft is slidably connected to the fixing member; the support member is connected to the movable shaft, and the second end of the steering column is rotatably connected to one end of the support member; the first end of the connecting assembly is fixedly connected to the second end of the steering column, and the second end of the connecting assembly is movably connected to the movable shaft; the locking mechanism is provided between the support member and the connecting assembly, and the locking mechanism locks the support member to the fixing member and locks the connecting assembly to the movable shaft in a locked state;

[0018] The angle adjustment assembly drives the second end of the steering column to rotate relative to the support member to adjust the angle of the steering column;

[0019] The length adjustment component is connected to the second end of the connecting component, and the connecting component drives the steering column to slide relative to the fixing member to adjust the length of the steering column.

[0020] Preferably, the locking mechanism comprises a first movable member, a second movable member and a pressure member;

[0021] The first end of the pressure member is slidably connected to the movable shaft, and the second end is fixed in the support member, and the pressure member is electrically connected to the steering column adjustment controller;

[0022] The first movable member and the second movable member are both movably sleeved on the movable shaft; the first movable member and the second movable member are respectively arranged on both sides of the pressure member;

[0023] The pressure member applies pressure to the support member through the first movable member to lock the support member to the fixed member, and applies pressure to the connecting component through the second movable member to lock the connecting component to the movable shaft;

[0024] The material strength of the middle portion of the pressure member is less than the material strength of the two ends.

[0025] Preferably, the connecting assembly includes a first connecting member, a second connecting member and a plurality of connecting members;

[0026] The first ends of the first and second coupling members are fixedly connected to the second end of the steering column, and the second ends of the first and second coupling members are connected to the movable shaft;

[0027] The connecting member is spaced apart and arranged between the first combining member and the second combining member;

[0028] A plurality of circular matching pieces are arranged at intervals on the movable shaft, and the matching pieces and the connecting piece are cross-matched;

[0029] The second end of the connecting component slides relative to the moving shaft along a first direction, slides relative to the moving shaft along a second direction through the matching piece, and rotates around the moving shaft.

[0030] Preferably, a limiting groove is provided on the first coupling member, and the limiting groove extends along the second direction;

[0031] One side of the second movable member is slidably connected to the limiting groove to limit the sliding of the connecting component relative to the movable shaft along the second direction.

[0032] Preferably, the angle adjustment assembly includes a first motor, a first worm gear and a first worm;

[0033] The first motor is fixed to the back side of the fixing member and is electrically connected to the steering column adjustment controller;

[0034] The first end of the first worm gear is connected to the first motor, and the first worm gear rotates under the drive of the first motor. The second end of the first worm gear is cooperatively connected to the first end of the first worm gear, so that the first worm gear performs linear motion. The second end of the first worm gear is connected to the second end of the steering column.

[0035] The moving direction of the first worm is set to form an angle with the moving direction of the moving shaft.

[0036] Preferably, the length adjustment assembly comprises a second motor, a second worm gear and a second worm;

[0037] The second motor is fixed to the front side of the fixing member and is electrically connected to the steering column adjustment controller;

[0038] The first end of the second worm gear is connected to the second motor, and the second worm gear rotates under the drive of the second motor. The second end of the second worm gear is cooperatively connected to the first end of the second worm, so that the second worm moves linearly. The second end of the second worm is rotatably connected to the second end of the connecting assembly.

[0039] In a second aspect, the present invention describes a control method for the steering column assembly, including the following control modes:

[0040] In the first control mode, the steering column adjustment controller determines whether a signal input from the adjustment button is received; if so, the steering column adjustment controller controls the angle adjustment component and the length adjustment component to adjust the steering column according to the signal; during the adjustment process, the central controller determines in real time whether the distance between the steering column and the seat meets the preset safety distance. If so, the steering column is further adjusted to the driver's intended adjustment position, and the steering column adjustment controller controls the locking mechanism to lock the steering column; if not, the central controller sends a locking command to the steering column adjustment controller, which controls the locking mechanism to lock the steering column;

[0041] Second control mode: The central controller determines whether a signal input from the driver's selection button is received; if so, the central controller sends a first call instruction to the steering column adjustment controller to call the steering column position information last set by the driver, and the steering column adjustment controller controls the angle adjustment component and the length adjustment component to adjust the steering column according to the first call instruction; during the adjustment process, the central controller determines in real time whether the distance between the steering column and the seat meets the preset safety distance. If so, the steering column is continued to be adjusted to the position last set by the driver, and the steering column adjustment controller controls the locking mechanism to lock the steering column; if not, the central controller sends a locking instruction to the steering column adjustment controller, and the steering column adjustment controller controls the locking mechanism to lock the steering column;

[0042] Third control mode: The central controller determines whether the ignition switch signal changes from IG OFF to IG ON and no other signal is input; if so, the central controller sends a second call instruction to the steering column adjustment controller to call the steering column position information set by the driver before the vehicle was last turned off, and the steering column adjustment controller controls the angle adjustment component and the length adjustment component to adjust the steering column according to the second call instruction; during the adjustment process, the central controller determines in real time whether the distance between the steering column and the seat meets the preset safety distance. If so, the steering column is continued to be adjusted to the position set by the driver before the vehicle was last turned off, and the steering column adjustment controller controls the locking mechanism to lock the steering column; if not, the central controller sends a locking instruction to the steering column adjustment controller, and the steering column adjustment controller controls the locking mechanism to lock the steering column;

[0043] Fourth control mode: the central controller determines whether the ignition switch signal changes from IG ON to IG OFF and there is no other signal input; if so, the central controller sends a third call instruction to the steering column adjustment controller, calling the steering column position information set by the driver before the last vehicle start, and the steering column adjustment controller controls the angle adjustment component and the length adjustment component to adjust the steering column according to the third call instruction; during the adjustment process, the central controller determines in real time whether the distance between the steering column and the seat meets the preset safety distance. If so, the steering column continues to be adjusted to the position set by the driver before the last start, and the steering column adjustment controller controls the locking mechanism to lock the steering column; if not, the central controller sends a locking instruction to the steering column adjustment controller, and the steering column adjustment controller controls the locking mechanism to lock the steering column.

[0044] In a third aspect, the present invention describes a vehicle comprising the steering column assembly.

[0045] Compared with the existing technology, the present invention has the following advantages: First, the steering column can be adjusted in angle and length by simply operating the adjustment buttons, without manually moving the steering wheel. This solves the problem of manual steering wheel adjustment, which may cause sticking, abnormal noise, and other inconveniences and discomfort. Second, the central controller can be coordinated with the steering column adjustment controller for management and control, realizing linkage with the vehicle's ignition signal, adjustment button signals, and driver selection button signals, and implementing advanced functions such as multiple position memory and automatic adjustment. This improves human-machine comfort, operational convenience, and a high-quality intelligent experience, thereby enhancing the product's market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0047] Figure 1 This is a front structural schematic diagram of a steering column assembly according to an embodiment of the present invention;

[0048] Figure 2 This is a schematic diagram of the back structure of the steering column assembly according to an embodiment of the present invention;

[0049] Figure 3 This is an electrical connection diagram of the steering column assembly according to an embodiment of the present invention;

[0050] Figure 4 Schematic diagram of the structure of the connecting component in the steering column assembly according to an embodiment of the present invention;

[0051] Figure 5 Schematic diagram of the structure of a movable shaft in a steering column assembly according to an embodiment of the present invention;

[0052] Figure 6 This is a logic control diagram of the steering column assembly control method according to an embodiment of the present invention.

[0053] Among them: 1-steering column;

[0054] 2-steering column adjustment mechanism; 21-locking mechanism; 211-first movable member; 212-second movable member; 213-pressure member; 22-fixing member; 23-movable shaft; 231-matching member; 232-matching groove; 24-support member; 25-connecting assembly; 251-first connecting member; 2511-limiting groove; 252-second connecting member; 253-connecting member;

[0055] 3-angle adjustment assembly; 31-first motor; 32-first worm gear; 33-first worm;

[0056] 4-length adjustment assembly; 41-second motor; 42-second worm gear; 43-second worm;

[0057] 5-Adjustment button;

[0058] 6-Central controller;

[0059] 7-Ignition switch;

[0060] 8- Steering column adjustment controller;

[0061] 9-Driver selection button. DETAILED DESCRIPTION

[0062] To make the objectives, technical solutions, and advantages of this application more clear, this application will be described in further detail below with reference to the accompanying drawings. It is apparent that the embodiments described are only a portion of the embodiments of this application, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments in this application without creative effort are intended to fall within the scope of protection of this application.

[0063] The terms used in the examples of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms "a," "the," and "the" used in the examples of this application and the appended claims are also intended to include plural forms, and unless the context clearly indicates otherwise, "a plurality" generally includes at least two.

[0064] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0065] It should be understood that although the terms first, second, third, etc. may be used to describe in the embodiments of the present application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, without departing from the scope of the embodiments of the present application, the first may also be referred to as the second, and similarly, the second may also be referred to as the first.

[0066] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to the determination" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)," depending on the context.

[0067] It should also be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or device comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or device. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the product or device comprising the element.

[0068] It should be noted in particular that any symbols and / or numbers in the specification that are not marked in the accompanying drawings are not drawing marks.

[0069] Example 1

[0070] See also Figure 1-Figure 5 As shown, a steering column assembly provided by an embodiment of the present application includes a steering column 1, a first end of the steering column 1 is connected to the steering wheel; a steering column adjustment mechanism 2, a second end of the steering column 1 is rotatably connected to the steering column adjustment mechanism 2; a locking mechanism 21 is provided in the steering column adjustment mechanism 2, and the locking mechanism 21 locks the steering column 1; an angle adjustment component 3, connected to the second end of the steering column 1, drives the second end of the steering column 1 to rotate relative to the steering column adjustment mechanism 2 to adjust the angle of the steering column 1; a length adjustment component 4, connected to the steering column adjustment mechanism 2, adjusts the length of the steering column 1 by driving the steering column adjustment mechanism 2 to slide; an adjustment button 5, provided on the steering column 1; a steering column adjustment controller 8 is electrically connected to the adjustment button 5, the angle adjustment component 3, the length adjustment component 4 and the locking mechanism 21, respectively, for receiving instructions from the adjustment button 5, and controlling the steering column 1 to adjust the angle and length and to lock according to the instructions.

[0071] Adjustment buttons 5 are located in four locations: up, down, left, and right. These control the length and angle of the steering column 1, respectively. The steering column adjustment controller 8 determines whether it has received a signal from the adjustment buttons 5. If so, it controls the angle adjustment assembly 3 and the length adjustment assembly 4 to adjust the steering column 1 to the driver's desired position. The steering column adjustment controller 8 then controls the locking mechanism 21 to lock the steering column 1.

[0072] The present invention can control the steering column 1 to adjust the angle and length only by operating the adjustment button 5, without manually moving the steering wheel, thereby solving the problem that manually moving the steering wheel to adjust the steering column angle and length position may cause jamming, abnormal noise and other inconveniences and discomfort.

[0073] Furthermore, the steering column assembly also includes a driver selection button 9 and a central controller 6; the driver selection button 9 is arranged on the steering column 1; the central controller 6 is electrically connected to the ignition switch 7, the adjustment button 5, the driver selection button 9 and the steering column adjustment controller 8 respectively; the central controller 6 is used to obtain signals from the ignition switch 7, the adjustment button 5 and the driver selection button 9, and send instructions to the steering column adjustment controller 8 according to the signals; the steering column adjustment controller 8 is used to receive instructions from the central controller 6, and control the steering column 1 to adjust the angle and length and lock it according to the instructions; a safety distance verification module is set in the central controller 6, and the safety distance verification module is used to monitor the distance between the steering column 1 and the seat in real time.

[0074] In this embodiment, the central controller 6 may be a vehicle controller, or may be integrated into the vehicle controller.

[0075] At least two driver selection buttons 9 are provided, D1, D2, D3, etc., corresponding to different drivers, and the steering column adjustment position last set by the different drivers is selected by pressing the buttons. The driver selection button is particularly useful for commercial vehicles that need to change drivers on long-distance routes, and the steering column position can be adjusted with one button, saving time and effort.

[0076] Through the coordinated management and control of the central controller 6 and the steering column adjustment controller 8, advanced functions such as multiple position memory and automatic adjustment are realized through linkage with the vehicle ignition signal, adjustment button signals, and driver selection button signals. This improves human-machine comfort, operational convenience, and a high-quality intelligent experience, enhancing the product's market competitiveness.

[0077] Specifically:

[0078] The central controller 6 determines whether the signal of the ignition switch 7 changes from IG OFF to IG ON and there is no other signal input; if so, the central controller 6 sends a call instruction to the steering column adjustment controller 8 to call the steering column position information set by the driver before the vehicle was last turned off. The steering column adjustment controller 8 controls the angle adjustment component 3 and the length adjustment component 4 according to the call instruction to adjust the steering column 1 to the position set by the driver before the vehicle was last turned off. Then, the steering column adjustment controller 8 controls the locking mechanism 21 to lock the steering column 1.

[0079] The central controller 6 determines whether the signal of the ignition switch 7 changes from IG ON to IG OFF and there is no other signal input; if so, the central controller 6 sends a call instruction to the steering column adjustment controller 8 to call the steering column position information set by the driver before the last vehicle start. The steering column adjustment controller 8 controls the angle adjustment component 3 and the length adjustment component 4 according to the call instruction to adjust the steering column 1 to the position set by the driver before the last start. Then, the steering column adjustment controller 8 controls the locking mechanism 21 to lock the steering column 1.

[0080] The central controller 6 determines whether it has received a signal input from the driver's selection button 9; if so, the central controller 6 sends a call instruction to the steering column adjustment controller 8 to call the steering column position information set by the driver last time. The steering column adjustment controller 8 controls the angle adjustment component 3 and the length adjustment component 4 according to the call instruction to adjust the steering column 1 to the position set by the driver last time. After that, the steering column adjustment controller 8 controls the locking mechanism 21 to lock the steering column 1.

[0081] During the above adjustment process, the central controller 6 determines in real time whether the distance between the steering column 1 and the seat meets the preset safety distance. If so, the steering column 1 continues to be adjusted to the target position of each process, and the steering column adjustment controller 8 controls the locking mechanism 21 to lock the steering column 1; if not, the central controller 6 sends a locking instruction to the steering column adjustment controller 8, and the steering column adjustment controller 8 controls the locking mechanism 21 to lock the steering column 1.

[0082] The safety distance verification module ensures that the steering column and seat are always within the preset safety distance, protecting the driver and vehicle system components.

[0083] Furthermore, the steering column adjustment mechanism also includes a fixed part 22, a movable shaft 23, a support part 24 and a connecting assembly 25; the fixed part 22 is fixedly connected to the vehicle body; the movable shaft 23 is slidably connected to the fixed part 22; the support part 24 is connected to the movable shaft 23, and the second end of the steering column 1 is rotatably connected to one end of the support part 24; the first end of the connecting assembly 25 is fixedly connected to the second end of the steering column 1, and the second end of the connecting assembly 25 is movably connected to the movable shaft 23; the locking mechanism 21 is arranged between the support part 24 and the connecting assembly 25, and the locking mechanism 21 locks the support part 24 to the fixed part 22 and the connecting assembly 25 to the movable shaft 23 in the locked state; the angle adjustment assembly 3 drives the second end of the steering column 1 to rotate relative to the support part 24 to adjust the angle of the steering column 1; the length adjustment assembly 4 is connected to the second end of the connecting assembly 25, and drives the steering column 1 to slide relative to the fixed part 22 through the connecting assembly 25 to adjust the length of the steering column 1.

[0084] The fixing member 22 is used to fix the steering column adjustment mechanism 2. The setting of the fixing member 22 provides an installation position for the steering column adjustment mechanism 2. By fixing the fixing member 22 to the vehicle body, the steering column adjustment mechanism 2 is connected to the vehicle body and is applied to the steering system of the vehicle.

[0085] The angle adjustment assembly 3 drives the second end of the steering column 1 to rotate relative to the support member 24, thereby adjusting the angle of the steering column 1. The length adjustment assembly 4 drives the connecting assembly 25 to cause the steering column 1 and the support member 24 to slide relative to the fixed member 22, thereby adjusting the length of the steering column 1. The locking mechanism 21 locks the support member 24 to the fixed member 22 and the connecting assembly 25 to the movable shaft 23, thereby locking the steering column 1.

[0086] Furthermore, the locking mechanism 21 includes a first movable member 211, a second movable member 212 and a pressure member 213; the first end of the pressure member 213 is slidably connected to the movable shaft 23, and the second end is fixed in the support member 24, and the pressure member 213 is electrically connected to the steering column adjustment controller 8; the first movable member 211 and the second movable member 212 are both movably mounted on the movable shaft 23; the first movable member 211 and the second movable member 212 are respectively arranged on both sides of the pressure member 213; the pressure member 213 applies pressure on the support member 24 through the first movable member 211 to lock the support member 24 to the fixed member 22, and applies pressure on the connecting component 25 through the second movable member 212 to lock the connecting component 25 to the movable shaft 23; the material strength of the middle part of the pressure member 213 is less than the material strength at both ends.

[0087] The pressure member 213 can apply pressure to the connecting assembly 25 and the support member 24. On the one hand, the pressure member 213 uses the second movable member 212 to press the connecting assembly 25, thereby fixing the connecting assembly 25 to the movable shaft 23. On the other hand, the pressure member 213 uses the first movable member 211 to press the support member 24, thereby pressing the support member 24 against the fixed member 22. This relatively fixes the position between the support member 24 and the fixed member 22, and thus the position between the movable shaft 23 and the fixed member 22. This achieves a relatively fixed position between the steering column 1 and the support member 24, thereby locking the length and angle of the steering column 1.

[0088] The pressure member 213 is electrically connected to the steering column adjustment controller 8 , so that the steering column adjustment controller 8 controls the locking and unlocking states of the locking mechanism.

[0089] Since the material strength of the middle part of the pressure piece 213 is less than that of the material at both ends, the pressure piece 213 will be cut off after being subjected to an impact force exceeding the safety threshold, and the self-locking mechanism 21 will change from a locked state to an unlocked state, causing the steering column 1 to move downward. Based on this arrangement, when the vehicle is involved in an accident or collision, the downward movement of the steering column 1 will reduce the driver's injury value to a certain extent.

[0090] Furthermore, the connecting component 25 includes a first connecting member 251, a second connecting member 252 and a plurality of connecting members 253; the first ends of the first connecting member 251 and the second connecting member 252 are fixedly connected to the second end of the steering column 1, and the second ends of the first connecting member 251 and the second connecting member 252 are connected to the movable shaft 23; the connecting member 253 is arranged at intervals between the first connecting member 251 and the second connecting member 252; a plurality of circular matching members 231 are arranged at intervals on the movable shaft 23, and the matching members 231 and the connecting members 252 are cross-matched; the second end of the connecting component 25 slides relative to the movable shaft 23 along the first direction, and slides relative to the movable shaft 23 along the second direction through the matching member 231, and rotates around the movable shaft 23.

[0091] In this embodiment, the first direction is the axial direction of the moving shaft 23 , and the second direction is the length direction of the connecting component 25 .

[0092] A mating groove 232 is formed between two adjacent mating pieces 231 . The connecting piece 253 slides and rotates in the mating groove 232 , thereby enabling the connecting assembly 25 to slide relative to the moving shaft 23 along the second direction and rotate around the moving shaft 23 .

[0093] The connecting assembly 25 can rotate around the movable shaft 23 as the steering column 1 rotates, and the above-mentioned rotation is ensured by the connecting assembly 25 sliding relative to the movable shaft 23 along the second direction.

[0094] The second end of the connecting assembly 25 slides relative to the movable shaft 23 along the first direction to ensure that the pressure member 213 presses the connecting assembly 25 to be fixed on the movable shaft, thereby locking the angle and length of the steering column 1.

[0095] Furthermore, a limiting groove 2511 is formed on the first coupling member 251 and extends along the second direction; one side of the second movable member 212 is slidably connected to the limiting groove 2511 to limit the sliding of the connecting component 25 relative to the movable shaft 23 along the second direction.

[0096] A snap-fitting slot is provided on one side of the second movable member 212. A raised structure above the snap-fitting slot engages within a retaining slot 2511, while a structure below the retaining slot 2511 engages and slides within the slot. When the connecting assembly 25 slides relative to the movable shaft 23 in the second direction, the second movable member 212 slides within the retaining slot. When the second movable member 212 reaches both ends of the retaining slot 2511, the sliding movement of the connecting assembly 25 relative to the movable shaft 23 in the second direction is limited, thereby limiting the angle adjustment of the steering column 1.

[0097] Furthermore, the angle adjustment assembly 3 includes a first motor 31, a first worm gear 32 and a first worm 33; the first motor 31 is fixed to the back of the fixing member 22 and is electrically connected to the steering column adjustment controller 8; the first end of the first worm gear 32 is connected to the first motor 31, and the first worm gear 32 rotates under the drive of the first motor 31, and the second end of the first worm gear 32 is cooperatively connected to the first end of the first worm 33, so that the first worm 33 performs linear motion, and the second end of the first worm 33 is connected to the second end of the steering column 1; the movement direction of the first worm 33 is set at an angle to the movement direction of the movable shaft 23.

[0098] Because the movement direction of the first worm 33 is arranged at an angle to the movement direction of the movable shaft 23, when the first worm 33 moves linearly, it simultaneously drives the support member 24 to slide relative to the fixed member 22 and drives the steering column 1 to rotate relative to the support member 24, thereby achieving simultaneous adjustment of the steering column angle and length. During design, the size of the angle can be adjusted according to the required angle and length adjustment.

[0099] The first motor 31 is electrically connected to the steering column adjustment controller 8 , so that the steering column adjustment controller 8 controls the angle adjustment component to adjust the angle and length of the steering column 1 .

[0100] Furthermore, the length adjustment assembly 4 includes a second motor 41, a second worm gear 42 and a second worm 43; the second motor 41 is fixed to the front of the fixing member 22 and is electrically connected to the steering column adjustment controller 8; the first end of the second worm gear 42 is connected to the second motor 41, and the second worm gear 42 rotates under the drive of the second motor 41, and the second end of the second worm gear 42 is cooperatively connected to the first end of the second worm 43, so that the second worm 43 performs linear motion, and the second end of the second worm 43 is rotatably connected to the second end of the connecting assembly 23.

[0101] The second worm 43 moves linearly, driving the second end of the steering column 1 and the entire support member 24 to slide relative to the fixed member 22, thereby adjusting the length of the steering column 1. Since the connecting assembly 25 rotates with the rotation of the steering column 1, the second end of the second worm 43 is rotatably connected to the second end of the connecting assembly 23, so that the second worm 43 does not rotate with the connecting assembly 25.

[0102] The second motor 41 is electrically connected to the steering column adjustment controller 8 , so that the steering column adjustment controller 8 controls the length adjustment component to adjust the length of the steering column 1 .

[0103] Example 2

[0104] See also Figure 6 As shown, this embodiment provides a control method for the steering column assembly, including the following control modes:

[0105] First control mode: The steering column adjustment controller 8 determines whether a signal input from the adjustment button 5 is received; if so, the steering column adjustment controller 8 controls the angle adjustment component 3 and the length adjustment component 4 to adjust the steering column 1 according to the signal; during the adjustment process, the central controller 6 determines in real time whether the distance between the steering column 1 and the seat meets the preset safety distance. If so, the steering column adjustment controller 8 continues to adjust the steering column 1 to the driver's intended adjustment position, and then controls the locking mechanism 21 to lock the steering column 1; if not, the central controller 6 sends a locking instruction to the steering column adjustment controller 8, and the steering column adjustment controller 8 controls the locking mechanism 21 to lock the steering column 1;

[0106] Second control mode: the central controller 6 determines whether a signal input from the driver's selection button 9 is received; if so, the central controller 6 sends a first call instruction to the steering column adjustment controller 8 to call the steering column position information last set by the driver, and the steering column adjustment controller 8 controls the angle adjustment component 3 and the length adjustment component 4 to adjust the steering column 1 according to the first call instruction; during the adjustment process, the central controller 6 determines in real time whether the distance between the steering column 1 and the seat meets the preset safety distance. If so, the steering column 1 is continued to be adjusted to the position last set by the driver, and the steering column adjustment controller 8 controls the locking mechanism 21 to lock the steering column 1; if not, the central controller 6 sends a locking instruction to the steering column adjustment controller 8, and the steering column adjustment controller 8 controls the locking mechanism 21 to lock the steering column 1;

[0107] Third control mode: the central controller 6 determines whether the ignition switch 7 signal changes from IG OFF to IG ON, and no other signal is input at the same time; if so, the central controller 6 sends a second call instruction to the steering column adjustment controller 8, calling the steering column position information set by the driver before the vehicle was last turned off, and the steering column adjustment controller 8 controls the angle adjustment component 3 and the length adjustment component 4 to adjust the steering column 1 according to the second call instruction; during the adjustment process, the central controller 6 determines in real time whether the distance between the steering column 1 and the seat meets the preset safety distance. If so, the steering column 1 is further adjusted to the position set by the driver before the vehicle was last turned off, and the steering column adjustment controller 8 controls the locking mechanism 21 to lock the steering column 1; if not, the central controller 6 sends a locking instruction to the steering column adjustment controller 8, and the steering column adjustment controller 8 controls the locking mechanism 21 to lock the steering column 1;

[0108] Fourth control mode: the central controller 6 determines whether the ignition switch signal changes from IG ON to IG OFF, and there is no other signal input; if so, the central controller 6 sends a third call instruction to the steering column adjustment controller 8, calling the steering column position information set by the driver before the last vehicle start, and the steering column adjustment controller 8 controls the angle adjustment component 3 and the length adjustment component 4 to adjust the steering column 1 according to the third call instruction; during the adjustment process, the central controller 6 determines in real time whether the distance between the steering column 1 and the seat meets the preset safety distance. If so, the steering column 1 continues to be adjusted to the position set by the driver before the last start, and the steering column adjustment controller 8 controls the locking mechanism 21 to lock the steering column 1; if not, the central controller 6 sends a locking instruction to the steering column adjustment controller 8, and the steering column adjustment controller 8 controls the locking mechanism 21 to lock the steering column 1.

[0109] According to the above control method, regardless of whether the ignition switch is in the IG ON or IG OFF state, as long as the adjustment button 5 is operated, the steering column assembly enters the first control mode; as long as the driver selection button 9 is operated, the steering column assembly enters the second control mode.

[0110] The above control method, on the one hand, allows the steering column 1 to be adjusted in angle and length simply by operating the adjustment button 5, without having to manually move the steering wheel. This solves the inconvenience and discomfort of manually moving the steering wheel to adjust the steering column angle and length, which may result in jamming, unusual noise, and other inconveniences. On the other hand, the central controller 6 and the steering column adjustment controller 8 can be collaboratively managed and controlled to achieve linkage with the vehicle's ignition signal, adjustment button signals, and driver selection button signals, enabling advanced functions such as multiple position memory and automatic adjustment. This improves human-machine comfort, operational convenience, and a high-quality intelligent experience, thereby enhancing the product's market competitiveness.

[0111] The second control mode is particularly suitable for situations where commercial vehicles need to change drivers on long-distance trunk routes. The steering column position can be adjusted with one click, saving time and effort.

[0112] Example 3

[0113] This embodiment provides a vehicle, including the above-mentioned steering column assembly.

[0114] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. References to the common and similar parts between the various embodiments will be sufficient. For the systems or devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, their descriptions are relatively simple; for relevant details, refer to the descriptions of the methods.

[0115] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A steering column assembly, characterized in that: include A steering column (1), wherein a first end of the steering column (1) is connected to a steering wheel; A steering column adjustment mechanism (2), wherein the second end of the steering column (1) is rotatably connected to the steering column adjustment mechanism (2); a locking mechanism (21) is provided in the steering column adjustment mechanism (2), and the locking mechanism (21) locks the steering column (1); An angle adjustment component (3) is connected to the second end of the steering column (1) and drives the second end of the steering column (1) to rotate relative to the steering column adjustment mechanism (2) to adjust the angle of the steering column (1); A length adjustment component (4) is connected to the steering column adjustment mechanism (2) and is configured to adjust the length of the steering column (1) by driving the steering column adjustment mechanism (2) to slide; An adjustment button (5) is provided on the steering column (1); A steering column adjustment controller (8) is electrically connected to the adjustment button (5), the angle adjustment component (3), the length adjustment component (4) and the locking mechanism (21), and is used to receive instructions from the adjustment button (5) and control the steering column (1) to adjust the angle and length and to lock the steering column according to the instructions; The steering column adjustment mechanism further includes a fixing member (22), a movable shaft (23), a supporting member (24) and a connecting assembly (25); The fixing member (22) is fixedly connected to the vehicle body; the movable shaft (23) is slidably connected to the fixing member (22); the support member (24) is connected to the movable shaft (23), and the second end of the steering column (1) is rotatably connected to one end of the support member (24); the first end of the connecting component (25) is fixedly connected to the second end of the steering column (1), and the second end of the connecting component (25) is movably connected to the movable shaft (23); the locking mechanism (21) is provided between the supporting member (24) and the connecting component (25), and the locking mechanism (21) locks the supporting member (24) to the fixing member (22) and locks the connecting component (25) to the movable shaft (23) in a locked state; The angle adjustment component (3) drives the second end of the steering column (1) to rotate relative to the support member (24), thereby adjusting the angle of the steering column (1); The length adjustment component (4) is connected to the second end of the connecting component (25), and drives the steering column (1) to slide relative to the fixing member (22) through the connecting component (25), thereby adjusting the length of the steering column (1); The locking mechanism (21) comprises a first movable member (211), a second movable member (212) and a pressure member (213); The first end of the pressure member (213) is slidably connected to the movable shaft (23), and the second end is fixed in the support member (24). The pressure member (213) is electrically connected to the steering column adjustment controller (8); The first movable member (211) and the second movable member (212) are both movably sleeved on the movable shaft (23); the first movable member (211) and the second movable member (212) are respectively arranged on both sides of the pressure member (213); The pressure member (213) applies pressure to the support member (24) through the first movable member (211), locking the support member (24) to the fixed member (22), and applies pressure to the connecting component (25) through the second movable member (212), locking the connecting component (25) to the movable shaft (23); The material strength of the middle portion of the pressure member (213) is less than the material strength of the two ends; The connecting assembly (25) includes a first connecting member (251), a second connecting member (252), and a plurality of connecting members (253); The first ends of the first combining member (251) and the second combining member (252) are fixedly connected to the second end of the steering column (1), and the second ends of the first combining member (251) and the second combining member (252) are connected to the movable shaft (23); The connecting member (253) is arranged between the first combining member (251) and the second combining member (252). A plurality of circular matching pieces (231) are arranged at intervals on the movable shaft (23), and the matching pieces (231) and the connecting piece (253) are cross-matched; The second end of the connecting component (25) slides relative to the movable shaft (23) along a first direction, slides relative to the movable shaft (23) along a second direction through the matching piece (231), and rotates around the movable shaft (23).

2. The steering column assembly according to claim 1, characterized in that: It also includes a driver selection button (9) and a central controller (6); the driver selection button (9) is arranged on the steering column (1); The central controller (6) is electrically connected to the ignition switch (7), the adjustment button (5), the driver selection button (9) and the steering column adjustment controller (8) respectively; the central controller (6) is used to obtain signals from the ignition switch (7), the adjustment button (5) and the driver selection button (9), and send instructions to the steering column adjustment controller (8) according to the signals; the steering column adjustment controller (8) is used to receive instructions from the central controller (6) and control the steering column (1) to adjust the angle and length and to lock it according to the instructions; A safety distance verification module is provided in the central controller (6), and the safety distance verification module is used to monitor the distance between the steering column (1) and the seat in real time.

3. The steering column assembly according to claim 1, characterized in that: A limiting groove (2511) is provided on the first coupling member (251), and the limiting groove (2511) extends along the second direction; One side of the second movable member (212) is slidably connected to the limiting groove (2511), limiting the sliding of the connecting component (25) relative to the movable shaft (23) along the second direction.

4. The steering column assembly according to claim 1, characterized in that: The angle adjustment assembly (3) comprises a first motor (31), a first worm gear (32) and a first worm (33); The first motor (31) is fixed to the back of the fixing member (22) and is electrically connected to the steering column adjustment controller (8); The first end of the first worm gear (32) is connected to the first motor (31), and the first worm gear (32) rotates under the drive of the first motor (31). The second end of the first worm gear (32) is cooperatively connected to the first end of the first worm (33), so that the first worm (33) moves linearly. The second end of the first worm (33) is connected to the second end of the steering column (1); The movement direction of the first worm (33) and the movement direction of the moving shaft (23) are arranged to form an angle.

5. The steering column assembly according to claim 4, characterized in that: The length adjustment assembly (4) comprises a second motor (41), a second worm gear (42) and a second worm (43); The second motor (41) is fixed to the front side of the fixing member (22) and is electrically connected to the steering column adjustment controller (8); The first end of the second worm gear (42) is connected to the second motor (41), and the second worm gear (42) rotates under the drive of the second motor (41). The second end of the second worm gear (42) is cooperatively connected to the first end of the second worm (43), so that the second worm (43) performs linear motion. The second end of the second worm (43) is rotatably connected to the second end of the connecting component (25).

6. A method for controlling a steering column assembly according to claim 2, characterized in that: The following control modes are included: First control mode: the steering column adjustment controller (8) determines whether a signal input from the adjustment button (5) is received; if so, the steering column adjustment controller (8) controls the angle adjustment component (3) and the length adjustment component (4) to adjust the steering column (1) according to the signal; during the adjustment process, the central controller (6) determines in real time whether the distance between the steering column (1) and the seat meets the preset safety distance; if so, the steering column (1) is further adjusted to the driver's intended adjustment position, and the steering column adjustment controller (8) controls the locking mechanism (21) to lock the steering column (1); if not, the central controller (6) sends a locking instruction to the steering column adjustment controller (8), and the steering column adjustment controller (8) controls the locking mechanism (21) to lock the steering column (1); Second control mode: the central controller (6) determines whether a signal input from the driver's selection button (9) is received; if so, the central controller (6) sends a first call instruction to the steering column adjustment controller (8), calling the steering column position information set by the driver last time, and the steering column adjustment controller (8) controls the angle adjustment component (3) and the length adjustment component (4) to adjust the steering column (1) according to the first call instruction; during the adjustment process, the central controller (6) determines in real time whether the distance between the steering column (1) and the seat meets the preset safety distance, and if so, continues to adjust the steering column (1) to the position set by the driver last time, and the steering column adjustment controller (8) controls the locking mechanism (21) to lock the steering column (1); if not, the central controller (6) sends a locking instruction to the steering column adjustment controller (8), and the steering column adjustment controller (8) controls the locking mechanism (21) to lock the steering column (1); The third control mode: the central controller (6) determines whether the ignition switch (7) signal changes from IG OFF to IG ON, and no other signal is input at the same time; if so, the central controller (6) sends a second call instruction to the steering column adjustment controller (8), calling the steering column position information set by the driver before the vehicle was turned off last time, and the steering column adjustment controller (8) controls the angle adjustment component (3) and the length adjustment component (4) to adjust the steering column (1) according to the second call instruction; during the adjustment process, the central controller (6) determines in real time whether the distance between the steering column (1) and the seat meets the preset safety distance, and if so, continues to adjust the steering column (1) to the position set by the driver before the vehicle was turned off last time, and the steering column adjustment controller (8) controls the locking mechanism (21) to lock the steering column (1); if not, the central controller (6) sends a locking instruction to the steering column adjustment controller (8), and the steering column adjustment controller (8) controls the locking mechanism (21) to lock the steering column (1); The fourth control mode: the central controller (6) determines whether the ignition switch signal changes from IG ON to IG OFF, and no other signal is input at the same time; if so, the central controller (6) sends a third call instruction to the steering column adjustment controller (8), calling the steering column position information set by the driver before the vehicle was started last time, and the steering column adjustment controller (8) controls the angle adjustment component (3) and the length adjustment component (4) to adjust the steering column (1) according to the third call instruction; during the adjustment process, the central controller (6) determines in real time whether the distance between the steering column (1) and the seat meets the preset safety distance, and if so, continues to adjust the steering column (1) to the position set by the driver before the last start, and the steering column adjustment controller (8) controls the locking mechanism (21) to lock the steering column (1); if not, the central controller (6) sends a locking instruction to the steering column adjustment controller (8), and the steering column adjustment controller (8) controls the locking mechanism (21) to lock the steering column (1).

7. A vehicle, characterized in that: The invention comprises the steering column assembly according to any one of claims 1 to 5.

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