WO2024021087A1 - 一种方向盘限位装置、方向盘及车辆 - Google Patents

一种方向盘限位装置、方向盘及车辆 Download PDF

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Publication number
WO2024021087A1
WO2024021087A1 PCT/CN2022/109164 CN2022109164W WO2024021087A1 WO 2024021087 A1 WO2024021087 A1 WO 2024021087A1 CN 2022109164 W CN2022109164 W CN 2022109164W WO 2024021087 A1 WO2024021087 A1 WO 2024021087A1
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WO
WIPO (PCT)
Prior art keywords
steering wheel
transmission member
limiting device
box
wheel limiting
Prior art date
Application number
PCT/CN2022/109164
Other languages
English (en)
French (fr)
Inventor
张志阳
王辉
朱冰
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2022/109164 priority Critical patent/WO2024021087A1/zh
Publication of WO2024021087A1 publication Critical patent/WO2024021087A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16—Steering columns
    • B62D1/20—Connecting steering column to steering gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D15/00—Steering not otherwise provided for
    • B62D15/02—Steering position indicators ; Steering position determination; Steering aids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D3/00—Steering gears
    • B62D3/02—Steering gears mechanical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear

Definitions

  • the present application relates to the field of vehicle technology, and in particular to a steering wheel limiting device, a steering wheel and a vehicle.
  • the demand for wire-controlled intelligent chassis in smart driving cars has led to the wire-controlled steering system. Since the steering wheel in the steer-by-wire system has no mechanical parts directly connected to the steering mechanism, a limiting device is required to limit the steering wheel angle to prevent the steering wheel from exceeding the turning angle range. For different models, the limit angles of commercial vehicles and passenger cars are different. The steering wheel angle range of commercial vehicles is usually larger, while the steering wheel angle range of passenger cars is smaller. The limit device in the steering-by-wire system is not adjustable after leaving the factory, and the maximum angle of the steering wheel is fixed, which is not universal. Different steering-by-wire systems are required for different models, and the production cost is high.
  • This application provides a steering wheel limiter, a steering wheel and a vehicle. Users can adjust the maximum rotation angle range of the steering wheel, so that the steering wheel limiter can be applied to different vehicle types and reduce manufacturing costs.
  • a first aspect of this application provides a steering wheel limiting device.
  • the steering wheel limiting device includes a first transmission member, a second transmission member and a limiting member.
  • the first transmission member is used to connect with the steering wheel
  • the second transmission member is transmission connected with the first transmission member
  • the steering wheel controls the first transmission member to drive the movement of the second transmission member
  • the second transmission member is provided with a positioning part
  • the limiting member is movable is disposed on one side of the second transmission member, and the limiting member is engaged with the positioning portion to limit the rotation angle of the first transmission member.
  • the steering wheel drives the first transmission member connected to the steering wheel to rotate, and drives the second transmission member drive-connected to the first transmission member to move.
  • the second transmission member is provided with a positioning portion. When the positioning portion moves with the second transmission member and is blocked by the limiting member, the second transmission member can be restricted from continuing to move, that is, the movable range of the second transmission member is limited, thereby limiting the movement range of the second transmission member.
  • the rotation angle of the first transmission member ultimately limits the rotation angle range of the steering wheel.
  • the limiting member in this application is movably disposed on one side of the second transmission member, that is, the relative distance between the positioning part of the second transmission member and the limiting member is adjustable, when the positioning part is in the initial position and does not move, By moving the limiting member so that the distance between the limiting member and the positioning part becomes smaller, the movable range of the second transmission member becomes smaller, and the rotatable angular range of the first transmission member and the steering wheel becomes smaller.
  • the positioning part is stationary at the initial position and the distance between the limiting part and the positioning part becomes larger by moving the limiting part, the movable range of the second transmission part becomes larger, and the distance between the first transmission part and the steering wheel increases.
  • the rotatable angle range becomes larger.
  • the above-mentioned initial position is the position where the positioning part is located when the steering wheel is in a non-steering state.
  • the steering wheel of the present application can drive the first transmission member to rotate clockwise or counterclockwise, and the limiting member can block the positioning portion of the second transmission member to limit the maximum clockwise rotation angle and direction of the first transmission member. Maximum counterclockwise rotation angle. Therefore, the steering wheel limiter of the present application is adjustable and can adjust the maximum turning angle of the steering wheel. It can be installed on different models to meet the maximum turning angle requirements of the steering wheels of different models. It is universal and does not need to be manufactured separately for different models. The corner steering wheel limiter can reduce production costs and improve production efficiency.
  • the steering wheel limiting device also includes a frame and a threaded lead screw.
  • the threaded lead screw is rotationally connected to the frame, the threaded lead screw is threadedly connected to the limiter, and the limiter is slidingly connected to the frame.
  • the rotational motion of the threaded screw can be converted into a linear movement of the limiter relative to the frame, thereby changing the positioning and positioning of the limiter.
  • the distance between the two parts is used to adjust the movable range (such as the rotation angle range) of the positioning part, and then adjust the rotation angle range of the first transmission part and the steering wheel.
  • the threaded connection between the threaded screw and the stopper has a self-locking property. No matter how big the driving force of the steering wheel is, it is difficult to make the positioning part push the stopper in a straight line relative to the frame through the transmission of the first and second transmission parts. sports. Therefore, the steering wheel limiting device of the present application has high limiting reliability.
  • the rack is provided with two opposite slide grooves, and both ends of the limiting member are slidingly connected to the slide grooves respectively.
  • the structure is simple and easy to manufacture and assemble.
  • the rack includes a box body, the chute is provided on the side wall of the box body, the box body is provided with a notch, and the notch is connected with the chute so that the limiting member can be installed into the chute through the notch.
  • the rack includes a box.
  • the side wall of the box is provided with a chute.
  • the limiter needs to pass through the gap before it can be installed inside the box and slide with the chute on the side wall.
  • the box can protect the limiter and the chute. It is not contaminated by external foreign matter, thereby ensuring the reliability of the sliding connection between the limiter and the chute.
  • the notch is a wedge-shaped notch
  • the frame further includes a wedge-shaped block, and the wedge-shaped block cooperates with the wedge-shaped notch.
  • the cooperation between the wedge block and the wedge notch is to prevent the stopper from detaching from the box through the chute and through the gap.
  • the wedge notch is located on the side wall of the box, the wedge block can engage with the wedge notch to prevent the wedge from detaching. The block breaks away from the side wall.
  • the outer wall of the box is provided with a recessed portion, the recessed portion is provided with a countersunk round hole that penetrates the side wall of the box, and one end of the threaded screw is provided with a round cone, and the round cone is rotated and set in the countersunk round hole.
  • the frame also includes a gusset plate. The gusset plate is detachably connected to the recessed portion. Both ends of the circular table along the axial direction of the threaded screw screw are in contact with the steps of the countersunk round hole and the gusset plate respectively.
  • the threaded screw rotates with the countersunk hole of the box through the circular cone, so that the threaded screw can rotate relative to the box.
  • one end of the circular cone abuts against the step of the countersunk hole.
  • the other end is in contact with the buckle plate installed on the box body to limit the movement of the threaded screw relative to the box body along its own axial direction.
  • the buckle plate is provided with a through hole
  • the end of the threaded screw is formed with a protruding portion protruding from the truncated cone, the protruding portion is passed through the through hole, and the protruding portion is provided with a groove.
  • the through hole is used to pass through the protruding part of the truncated cone of the threaded screw, so that the groove located on the protruding part is connected with the external environment of the box.
  • the user can use tools to match the grooves outside the box, and use tools
  • the threaded lead screw is driven to rotate, thereby driving the stopper to slide relative to the box.
  • the steering wheel limiting device also includes a first motor.
  • the output end of the first motor is connected to the threaded screw for controlling the rotation of the threaded screw.
  • This driving method has high efficiency, high rotation accuracy, and is convenient for The user directly controls the rotation of the threaded screw outside the vehicle to adjust the maximum rotation angle of the steering wheel.
  • the steering wheel limiting device further includes a second motor, and one end of the first transmission member passes through the box and is connected to the output shaft of the second motor.
  • the second motor is a road-sensing motor, which is used to provide a backing torque to the first transmission part and the steering wheel, so that the user can sense information such as vehicle motion status and road surface status through the steering wheel.
  • the first transmission member is provided with a first boss
  • the box is provided with a first through hole
  • the first boss is rotated through the first through hole
  • the first transmission member passes through the first boss.
  • the platform is connected to the output shaft of the second motor.
  • the first boss is rotated through the first through hole.
  • the first transmission member can rotate with respect to the fixed axis of the box.
  • the first boss is used to communicate with the output of the second motor outside the box.
  • the shafts are connected so that the transmission connection part (such as the gear meshing part) of the first transmission part and the second transmission part is located inside the box, which can reduce the risk of contamination by external foreign matter.
  • a first keyway is provided on the first boss
  • a key is provided on the output shaft of the second motor
  • the first boss and the output shaft of the second motor are fixed through the cooperation of the first keyway and the key. connected, so that the second motor can provide the righting torque to the first transmission part through the key connection method.
  • the connection method is simple and easy to manufacture and assemble.
  • the rack also includes a box cover, which is fastened to the box body.
  • the box cover is provided with a window, and an angle scale is provided on the edge of the window. The angle scale is used for Identifies the rotation angle range of the first transmission member or the second transmission member.
  • the user can see the movement trajectory of the positioning part through the window of the box cover.
  • the angle scale on the edge of the window facilitates the user to understand the angle scale value corresponding to the position of the positioning part, thereby understanding the first
  • the specific value of the maximum rotation angle of the first transmission member or the second transmission member can then accurately adjust the position of the limiter relative to the second transmission member to meet the maximum rotation angle limit requirements of the steering wheel of different models.
  • both the first transmission member and the second transmission member are gears, and the diameter of the first transmission member is smaller than the diameter of the second transmission member to form a gear reduction mechanism, which has high transmission efficiency and is easy to use. maintain.
  • the transmission ratio between the first transmission member and the second transmission member is 1:6, that is, when the first transmission member rotates six times, the second rotating member can rotate once.
  • the maximum number of turns of the steering wheel in the same direction can be three turns, two turns, two and a half turns, or two and a half turns plus a quarter turn, etc.
  • the first transmission member can rotate at most three turns in the same direction
  • the second transmission member can drive the positioning part to rotate at most half a turn.
  • the maximum rotation angle of the second transmission member can be less than 360°, so that the rotation angle of the first transmission member can be adjusted by adjusting the position of the limiter.
  • the second aspect of this application also provides a steering wheel, which includes the steering wheel limiting device provided by the first aspect of this application, and has the above-mentioned effects.
  • the third aspect of this application also provides a vehicle, which includes the steering wheel limiting device provided in the first aspect of this application, which has the above-mentioned effects.
  • Figure 1 is a schematic structural diagram of a steering wheel limiting device provided by the present application in a specific embodiment, in which the box cover is not shown;
  • Figure 2 is a top view of the steering wheel limiting device in Figure 1, in which the positioning part is in the initial position;
  • Figure 3 is a top view of the steering wheel limiting device in Figure 1, in which the positioning part is in contact with the limiting member;
  • Figure 4 is a schematic diagram of the exploded structure of the steering wheel limiting device in Figure 1 from a first perspective;
  • Figure 5 is a schematic diagram of the exploded structure of the chute, limiter, wedge-shaped gap and wedge-shaped fastener in Figure 4;
  • Figure 6 is a schematic diagram of the exploded structure of the steering wheel limiting device in Figure 1 from a second perspective;
  • Figure 7 is a schematic structural diagram of the box cover in Figure 4.
  • Figure 8 is an exploded structural diagram of the steering wheel limiting device in Figure 1 from a third perspective, in which the threaded screw, the first transmission member and the wedge block are not shown;
  • Figure 9 is a schematic diagram of the exploded structure of the gusset plate, threaded screw and box in Figure 1;
  • Figure 10 is a schematic structural diagram of the first transmission member in Figure 1 from one perspective;
  • Figure 11 is a schematic structural diagram of the first transmission member in Figure 1 from two viewing angles;
  • Figure 12 is a schematic structural diagram of the first transmission member in Figure 1 from three perspectives;
  • Figure 13 is a schematic structural diagram of the first transmission member in Figure 1 from four viewing angles;
  • connection can be a fixed connection, a detachable connection, or an integral connection.
  • Connection, or electrical connection may be direct or indirect through an intermediary.
  • the present application provides a steering wheel limiting device, a steering wheel and a vehicle, and relates to the field of vehicle technology.
  • the steering wheel limiting device of the present application can be specifically used for a steering-by-wire steering wheel, and can be applied to vehicles (not shown in the figure) for Limiting the maximum turning angle of the steering wheel can of course also be applied to scenarios such as driving simulation simulators, toy cars or steering devices.
  • the steering wheel limiting device of the present application will be mainly introduced by taking its application to a vehicle as an example.
  • the steering wheel limiting device of the present application includes a first transmission member 1 , a second transmission member 2 and a limiting member 3 .
  • the first transmission member 1 is used to be connected to the steering wheel (not shown in the figure), and the second transmission member 2 is transmission connected to the first transmission member 1.
  • the steering wheel controls the first transmission member 1 to drive the second transmission member 2 to move.
  • the member 2 is provided with a positioning portion 21, and the limiting member 3 is movably disposed on one side of the second transmission member 2.
  • the limiting member 3 engages with the positioning portion 21 to limit the rotation angle of the first transmission member 1.
  • the steering wheel drives the first transmission member 1 connected to the steering wheel to rotate, and drives the second transmission member 2 connected to the first transmission member 1 to move.
  • the second transmission member 2 is provided with a positioning portion 21.
  • the positioning portion 21 moves with the second transmission member 2 and is blocked by the limiting member 3, it can restrict the second transmission member 2 from continuing to move, that is, it limits the second transmission member 2
  • the movable range of the first transmission member 1 is further limited, and finally the rotation angle range of the steering wheel is limited.
  • the limiting member 3 in this application is movably disposed on one side of the second transmission member 2, that is, the relative distance between the positioning portion 21 of the second transmission member 2 and the limiting member 3 is adjustable, when the positioning portion 21 When it is stationary at the initial position, by moving the limiter 3 to make the distance between the limiter 3 and the positioning part 21 smaller, the movable range of the second transmission member 2 becomes smaller, and the rotatable angle of the first transmission member 1 and the steering wheel becomes smaller. The range becomes smaller.
  • the movable range of the second transmission part 2 becomes larger, and the first The rotatable angle range of the transmission part 1 and the steering wheel becomes larger.
  • the above-mentioned initial position is the position of the positioning part when the steering wheel is in a non-steering state, as shown in Figure 2.
  • the steering wheel of the present application can drive the first transmission member 1 to rotate clockwise or counterclockwise, and the limiting member 3 can block the positioning portion 21 of the second transmission member 2 to limit the clockwise rotation of the first transmission member 1. The maximum rotation angle and the maximum rotation angle in the counterclockwise direction.
  • the steering wheel limiter of the present application is adjustable and can adjust the maximum turning angle of the steering wheel. It can be installed on different models to meet the maximum turning angle requirements of the steering wheels of different models. It is universal and does not need to be manufactured separately for different models.
  • the corner steering wheel limiter can reduce production costs and improve production efficiency.
  • the first transmission member 1 and the second transmission member 2 are transmission connected to form a deceleration mechanism, so that the steering wheel can drive the first transmission member 1 to rotate at least 360 degrees, so that the positioning portion 21 of the second transmission member 2 is relative to the first transmission member 2.
  • the movement range of the transmission member 1 is small, which means that the limiting structure formed by the limiting member 3 and the positioning portion 21 occupies a smaller space inside the steering wheel limiting device of the present application.
  • the reduction mechanism may be a gear reduction mechanism, a worm gear reduction mechanism, a screw reduction mechanism, etc.
  • the first transmission member 1 may be a small diameter gear, a turbine or a screw
  • the second transmission member 2 may be a large diameter gear, a worm Or the moving block is threadedly connected to the screw.
  • the positioning part 21 can be provided on the large-diameter gear, worm or moving block. Therefore, the limiter 3 can limit the rotation angle of the large-diameter gear, the rotation angle of the worm or the movement of the moving block. distance, thereby limiting the rotation angle of the small-diameter gear, the rotation angle of the turbine, or the rotation angle of the lead screw, and ultimately limiting the maximum rotation angle of the steering wheel.
  • the first transmission member 1 and the second transmission member 2 of the present application can both be gears, and the diameter of the first transmission member 1 is smaller than the diameter of the second transmission member 2 to form a Gear reduction mechanism, this reduction mechanism has high transmission efficiency and is easy to maintain.
  • the transmission ratio of the first transmission member 1 and the second transmission member 2 can be 1:6, that is, when the first transmission member 1 rotates six times, the second rotating member 2 Able to turn in one circle.
  • the maximum number of turns of the steering wheel in the same direction can be three turns, two turns, two and a half turns, or two and a half turns plus a quarter turn, etc.
  • the first transmission member 1 can rotate at most three turns in the same direction
  • the second transmission member 2 can drive the positioning part 21 to rotate at most half a turn.
  • the maximum rotation angle of the second transmission member 2 can be made less than 360°, thereby making it easy to adjust the rotation angle of the first transmission member 1 by adjusting the position of the limiter 3 adjust.
  • the transmission ratio between the first transmission member 1 and the second transmission member 2 can also be 1:2, 1:3, 1:4, 1:5 or other reduction ratio values.
  • the steering wheel limiting device of this application also includes a frame 4 and a threaded screw 5.
  • the threaded screw 5 is rotationally connected to the frame 4, and the threaded screw 5 is threadedly connected to the limiter 3. , the limiter 3 is slidingly connected to the frame 4.
  • the rotational motion of the threaded screw 5 can be converted into the movement of the limiter 3 relative to the frame. 4 linear movement, thereby changing the distance between the limiting member 3 and the positioning part 21 to adjust the movable range (such as the rotation angle range) of the positioning part 21, and then adjust the rotation angle range of the first transmission member 1 and the steering wheel.
  • the threaded connection between the threaded screw 5 and the limiter 3 has a self-locking property. No matter how big the driving force of the steering wheel is, it is difficult for the positioning part 21 to push the limiter through the transmission of the first transmission member 1 and the second transmission member 2. 3 moves linearly relative to the frame 4. Therefore, the steering wheel limiting device of the present application has high limiting reliability.
  • the second transmission member 2 drives the positioning part 21 along the clockwise rotatable angle range.
  • the rotatable angle ranges of the first transmission member 1 and the steering wheel are the same in both clockwise and counterclockwise directions.
  • the frame 4 is provided with two opposite chute 41. Both ends of the limiter 3 are slidingly connected to the chute 41 respectively. This structure Simple and easy to make and assemble.
  • a threaded hole 31 is provided in the middle of the limiter 3, and the threaded hole 31 is used for threaded connection of the threaded screw 5, so that the interaction force between the two ends of the limiter 3 and the two oppositely arranged slide grooves 41 is the same. Thereby improving the service life of the limiter 3.
  • the rack 4 includes a box 42.
  • the chute 41 is provided on the side wall 421 of the box 42.
  • the box 42 is provided with a notch 422.
  • the notch 422 communicates with the chute 41 so that the limiting member 3 can be installed into the chute 41 through the notch 422 .
  • the rack 4 includes a box 42.
  • the side wall 421 of the box 42 is provided with a chute 41.
  • the limiter 3 needs to pass through the gap 422 before it can be installed inside the box 42 and connect with the slide on the side wall 421.
  • the groove 41 slides, and the box 42 can protect the limiter 3 and the chute 41 from being contaminated by external foreign matter, thereby ensuring the reliability of the sliding connection between the limiter 3 and the chute 41 .
  • the notch 422 may be a wedge-shaped notch.
  • the frame 4 also includes a wedge-shaped block 423, and the wedge-shaped block 423 cooperates with the wedge-shaped notch.
  • the cooperation between the wedge-shaped block 423 and the wedge-shaped notch is to prevent the limiting member 3 from escaping from the box 42 from the chute 41 through the notch 422 on the one hand.
  • the wedge-shaped notch is located on the side wall 421 of the box 42 , the wedge-shaped block 423 can engage with the wedge-shaped notch to prevent the wedge-shaped block 423 from being detached from the side wall 421 .
  • the rack 4 can also include a box cover 44.
  • the box cover 44 is fastened to the box body 42.
  • the box cover 44 is provided with a window 441.
  • the edge of the window 441 An angle scale 442 is provided, and the angle scale 442 is used to mark the rotation angle range of the first transmission member 1 or the second transmission member 2 .
  • the user can see the movement trajectory of the positioning part 21 through the window 441 of the box cover 44.
  • the angle scale 442 on the edge of the window 441 facilitates the user to understand the positioning.
  • the angle scale value corresponding to the position of the part 21 is used to understand the specific value of the maximum rotation angle of the first transmission member 1 or the second transmission member 2, and then the position of the limiter 3 relative to the second transmission member 2 can be accurately adjusted to Meet the maximum steering angle limit requirements of different models.
  • the angle scale value of the angle scale 442 in this embodiment corresponds to the rotation angle of the first transmission member 1, so that the user can directly understand the value of the maximum rotation angle of the steering wheel.
  • the third screw 48 is threaded through the box cover 44 and is threadedly connected to the box body 42 .
  • the box cover 44 can restrict the wedge-shaped block 423 from being located on the side.
  • the wedge-shaped notch of wall 421 breaks away.
  • the outer wall 424 of the box 42 is provided with a recessed portion 425.
  • the recessed portion 425 is provided with a countersunk circular hole 426 that penetrates the side wall 421 of the box 42.
  • One end of the threaded screw 5 is provided with a round cone. 51.
  • the circular table 51 is rotatably installed in the countersunk circular hole 426.
  • the frame 4 also includes a buckle plate 43, which is detachably connected to the recessed portion 425. The two ends of the round table 51 along the axial direction of the threaded screw 5 are respectively in contact with the steps of the countersunk hole 426 and the buckle plate 43 for limiting.
  • the threaded screw 5 rotates with the countersunk hole 426 of the box 42 through the circular cone 51 so that the threaded screw 5 can rotate relative to the box 42.
  • the circular cone 51 One end is in contact with the step of the countersunk circular hole 426, and the other end of the circular cone 51 is in contact with the buckle plate 43 installed on the box 42 to limit the movement of the threaded screw 5 relative to the box 42 along its own axial direction.
  • the second screw 47 can be penetrated through the buckle plate 43 and fixedly connected to the recessed portion 425 .
  • the buckle plate 43 is provided with a through hole 431, and the end of the threaded screw 5 is formed with a protruding portion 52 protruding from the round cone 51.
  • the protruding portion 52 passes through the through hole 431.
  • the protruding portion 52 is provided with a groove 521.
  • the through hole 431 is used for the protruding portion 52 located on the circular cone 51 of the threaded screw 5 to pass through, so that the groove 521 located on the protruding portion 52 is connected with the external environment of the box 42, and the user can
  • a tool is used on the outside of the body 42 to engage with the groove 521, and the tool is used to drive the threaded screw 5 to rotate, thereby driving the stopper 3 to slide relative to the box 42.
  • the groove 521 is a "-" shaped groove. Of course, the groove 521 may also be a "X"-shaped groove or other shapes.
  • the user can drive the threaded screw 5 to rotate manually or electrically.
  • the steering wheel limiting device of the present application also includes a first motor (not shown in the figure).
  • the output end of the first motor (not shown in the figure) is connected to the threaded screw 5 for controlling the threaded screw 5
  • This driving method has high efficiency and high rotation accuracy, making it easy for users to directly control the rotation of the threaded screw outside the vehicle to adjust the maximum rotation angle of the steering wheel.
  • the steering wheel limiting device also includes a second motor 6 .
  • One end of the first transmission member 1 passes through the box 42 and is connected to the output shaft (not shown in the figure) of the second motor 6 .
  • the second motor 6 is a road-sensing motor, which is used to provide a backing torque to the first transmission member 1 and the steering wheel, so that the user can sense information such as vehicle motion status and road surface status through the steering wheel.
  • the first transmission member 1 is provided with a first boss 11, the box 42 is provided with a first through hole 427, and the first boss 11 is rotated through Through the first through hole 427 , the first transmission member 1 is connected to the output shaft 61 of the second motor 6 through the first boss 11 .
  • the first boss 11 is rotated through the first through hole 427, which on the one hand enables the first transmission member 1 to rotate relative to the box 42, and on the other hand, the first boss 11 is used for It is connected to the output shaft 61 of the second motor 6 outside the box 42, so that the transmission connection part (such as the gear meshing part) of the first transmission member 1 and the second transmission member 2 is located inside the box 42, which can reduce contamination by external foreign matter. risks of.
  • the first transmission member 1 is also provided with a second boss 12, and the box cover 44 is provided with a second through hole 443.
  • the second boss 12 is rotated through the second through hole 443 for connection with the steering wheel.
  • first boss 11 and the second boss 12 of the first transmission member 1 abut against the box body 42 and the box cover 44 respectively to limit the first transmission member 1 relative to the box along its own axial direction. Body 42 movement.
  • the first boss 11 is provided with a first keyway 111, and the output shaft of the second motor 6 is provided with a key (not shown in the figure).
  • the first boss 11 and the second The output shaft of the motor 6 is fixedly connected to the key through the first keyway 111, so that the second motor 6 provides a backing torque to the first transmission member 1 through the key connection.
  • This connection method is simple and easy to manufacture and assemble.
  • a second keyway 121 is provided on the second boss 12 for forming a key connection with the steering wheel, so that the first transmission member 1 can transmit the positive torque back to the steering wheel.
  • the box 42 is provided with a fixed shaft 428 for rotationally mating with the center hole 22 of the second transmission member 2 .
  • the box 42 is also provided with a limiting disk 45 .
  • the disk 45 is in contact with an end of the second transmission member 2 away from the box 42.
  • the first screw 46 is penetrated through the limiting disk 45 and threadedly connected with the fixed shaft 428 to limit the second transmission member 2 relative to the fixed shaft 428. axial movement.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
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Abstract

公开了一种线控转向方向盘限位装置及包括该方向盘限位装置的方向盘和车辆，该方向盘限位装置包括第一传动件（1）、第二传动件（2）和限位件（3），第一传动件用于与方向盘连接，第二传动件与第一传动件传动连接，方向盘控制第一传动件带动第二传动件运动，第二传动件上设置有定位部（21），限位件可移动地设置于第二传动件一侧，限位件与定位部挡接，以限制第一传动件顺时针和逆时针转动的角度。该线控转向方向盘限位装置使得用户能够调节方向盘的最大转角范围，从而使线控转向方向盘限位装置能够应用于不同车辆类型，降低制造成本。

Description

一种方向盘限位装置、方向盘及车辆 技术领域
本申请涉及车辆技术领域，尤其涉及一种方向盘限位装置、方向盘及车辆。
背景技术
智能驾驶汽车对线控智能底盘的需求衍生出了线控转向***。由于线控转向***中方向盘没有与转向机构直连的机械件，需要通过限位装置对方向盘转角进行限位，能够避免方向盘超过转角范围。对于不同车型，商用车与乘用车的限位角是不同的，商用车方向盘转角范围通常较大，乘用车转角范围较小。在线控转向***中的限位装置在出厂后不具有可调性，方向盘最大角度便随之固定，不具有通用性。针对不同车型需要制作不同的线控转向***，制作成本较高。
发明内容
本申请提供一种方向盘限位装置、方向盘及车辆，用户能够调节方向盘的最大转角范围，以使方向盘限位装置能够应用于不同车辆类型，降低制成成本。
本申请第一方面提供一种方向盘限位装置，该方向盘限位装置包括第一传动件、第二传动件和限位件。第一传动件用于与方向盘连接，第二传动件与第一传动件传动连接，方向盘控制第一传动件带动第二传动件运动，第二传动件上设置有定位部，限位件可移动地设置于第二传动件的一侧，限位件与定位部挡接，以限制第一传动件转动的角度。
当用户转动方向盘以改变车辆的行驶方向时，方向盘带动与方向盘连接的第一传动件转动，并带动与第一传动件传动连接的第二传动件运动。第二传动件上设置有定位部，当定位部随第二传动件运动并受到限位件挡接时，能够限制第二传动件继续运动，即限制第二传动件的可运动范围，进而限制第一传动件的转动角度，最终限制方向盘的转动角度范围。由于本申请中的限位件可移动地设置于第二传动件的一侧，即第二传动件的定位部与限位件之间的相对距离可调，当定位部位于初始位置不动，通过移动限位件使限位件与定位部之间距离变小时，第二传动件的可运动范围变小，第一传动件和方向盘的可转动角度范围变小。同理，当定位部位于初始位置不动，通过移动限位件使限位件与定位部之间的距离变大时，第二传动件的可运动范围变大，第一传动件和方向盘的可转动角度范围变大。其中，上述初始位置为方向盘处于非转向状态时定位部所在的位置。本申请的方向盘能够带动第一传动件沿顺时针转动或沿逆时针转动，限位件均能挡接第二传动件的定位部，以限制第一传动件沿顺时针的最大转动角度和沿逆时针最大转动角度。因此，本申请的方向盘限位装置具有可调性，可以调节方向盘的最大转角，能够适用安装在不同车型，满足不同车型的方向盘的最大转角需求，具有通用性，无需针对不同车型单独制作具有特定转角的方向盘限位装置，能够降低制作成本，提高生产效率。
在一种可能的设计中，方向盘限位装置还包括机架和螺纹丝杠，螺纹丝杠与机架转动连接，螺纹丝杠与限位件螺纹连接，限位件与机架滑动连接。
通过螺纹丝杠与限位件的螺纹连接以及限位件与机架的滑动连接，可以将螺纹丝杠的旋转运动转化为限位件相对于机架的直线移动，从而改变限位件与定位部之间的距离，以调节 定位部的可运动范围(例如转动角度范围)，进而调节第一传动件和方向盘的转动角度范围。同时，螺纹丝杠与限位件的螺纹连接具有自锁性质，无论方向盘的驱动力多大，都难以通过第一传动件和第二传动件的传动使定位部推动限位件相对于机架直线运动。因此，本申请的方向盘限位装置具有较高的限位可靠性。
在一种可能的设计中，机架设置有两个相对设置的滑槽，限位件的两端分别与滑槽滑动连接，该结构简单，容易制作和装配。
在一种可能的设计中，机架包括箱体，滑槽设置于箱体的侧壁，箱体上设置有缺口，缺口与滑槽连通以使限位件通过缺口安装至滑槽中。
机架包括箱体，箱体的侧壁设置有滑槽，限位件需要先经过缺口才能安装至箱体内部并与位于侧壁的滑槽滑动运动，箱体能够保护限位件和滑槽不受外部异物污染，从而保证限位件与滑槽滑动连接的可靠性。
在一种可能的设计中，缺口为楔形缺口，机架还包括楔形块，楔形块与楔形缺口配合。
楔形块与楔形缺口的配合一方面是为了防止限位件从滑槽经过缺口脱离箱体，另一方面，由于楔形缺口位于箱体的侧壁上，楔形块能够与楔形缺口卡接，防止楔形块从侧壁上脱离。
在一种可能的设计中，箱体的外壁设置有凹陷部，凹陷部设置有贯穿箱体侧壁的沉头圆孔，螺纹丝杠的一端设置有圆台，圆台转动设置于沉头圆孔中。机架还包括扣板，扣板与凹陷部可拆卸连接，圆台沿螺纹丝杠轴向的两端分别与沉头圆孔的台阶和扣板接触限位。
螺纹丝杠通过圆台与箱体的沉头圆孔转动配合，以使螺纹丝杠能够相对于箱体旋转，沿螺纹丝杠轴向，圆台的一端抵接于沉头圆孔的台阶，圆台的另一端抵接于安装于箱体的扣板，以限制螺纹丝杠沿其自身轴向相对于箱体运动。
在一种可能的设计中，扣板设置有通孔，螺纹丝杠的端部形成有凸出于圆台的凸出部，凸出部穿设于通孔，凸出部上设置有凹槽。
通孔用于位于螺纹丝杠的圆台的凸出部穿过，以使位于凸出部的凹槽与箱体外部环境相连通，用户能够在箱体外部利用工具与凹槽配合，并利用工具驱动螺纹丝杠转动，从而驱动限位件相对于箱体滑动。
在一种可能的设计中，方向盘限位装置还包括第一电机，第一电机的输出端与螺纹丝杠相连，用于控制螺纹丝杠的转动，该驱动方式效率高，转动精度高，便于用户在车辆外部直接控制螺纹丝杠的转动，从而调节方向盘的最大转动角度。
在一种可能的设计中，方向盘限位装置还包括第二电机，第一传动件的一端穿过箱体与第二电机的输出轴相连。
第二电机为路感电机，用于向第一传动件以及方向盘提供回正力矩，以使用户能够通过方向盘感知车辆运动状态和路面状态等信息。
在一种可能的设计中，第一传动件设置有第一凸台，箱体上设置有第一过孔，第一凸台转动穿设于第一过孔，第一传动件通过第一凸台与第二电机的输出轴相连。
第一凸台转动穿设于第一过孔，一方面使得第一传动件能够相对于箱体做定轴转动，另一方面，第一凸台用于与箱体外的第二电机的输出轴相连，使得第一传动件与第二传动件的传动连接部位(例如齿轮啮合部位)位于箱体内部，能够降低被外部异物污染的风险。
在一种可能的设计中，第一凸台上设置有第一键槽，第二电机的输出轴上设置有键，第一凸台与第二电机的输出轴通过第一键槽与键的配合固定相连，以使第二电机通过键连接方式向第一传动件提供回正力矩，该连接方式简单，易制作和装配。
在一种可能的设计中，机架还包括箱盖，箱盖扣合于箱体，沿定位部的运动轨迹，箱盖 设置有窗口，窗口的边缘设置有角度刻度尺，角度刻度尺用于标识第一传动件或第二传动件的转动角度范围。
用户可以透过箱盖的窗口看到定位部的运动轨迹，当定位部与限位件挡接时，窗口的边缘的角度刻度尺便于用户了解定位部所在位置对应的角度刻度值，从而了解第一传动件或第二传动件的最大转动角度的具体数值，进而可以准确调节限位件相对于第二传动件的位置，以满足不同车型的方向盘最大转角限位需求。
在一种可能的设计中，第一传动件和第二传动件均为齿轮，第一传动件的直径小于第二传动件的直径，以形成齿轮减速机构，该减速机构的传动效率高，容易维护。
在一种可能的设计中，第一传动件与第二传动件的传动比为1:6，即第一传动件转动六圈时，第二转动件能够转动一圈。可以理解的是，对于乘用车、商用车等不同车辆而言，方向盘沿同一方向的最大转动圈数可以为三圈、两圈、两圈半或两圈半加四分之一圈等，为了能够适应于不同类车型。本申请的限位件与定位部能够抵接时，第一传动件沿同一方向至多能够转动三圈，第二传动件至多能够带动定位部转动半圈。同时，在具有1:6的传动比的条件下，可以使第二传动件的最大转动角度小于360°，从而便于通过调节限位件的位置来实现对第一传动件转动角度的调节。
本申请第二方面还提供一种方向盘，该方向盘包括本申请第一方面提供的方向盘限位装置，具有上述内容的效果。
本申请第三方面还提供一种车辆，该车辆包括本申请第一方面提供的方向盘限位装置，具有上述内容的效果。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性的，并不能限制本申请。
附图说明
图1为本申请所提供的方向盘限位装置在一种具体实施例中的结构示意图，其中，箱盖未示出；
图2为图1中方向盘限位装置的俯视图，其中，定位部位于初始位置；
图3为图1中方向盘限位装置的俯视图，其中，定位部位与限位件抵接；
图4为图1中方向盘限位装置在第一视角下***结构示意图；
图5为图4中滑槽、限位件、楔形缺口与楔形快的***结构示意图；
图6为图1中方向盘限位装置在第二视角下的***结构示意图；
图7为图4中箱盖的结构示意图；
图8为图1中方向盘限位装置在第三视角下的***结构示意图，其中，螺纹丝杠、第一传动件和楔形块未示出；
图9为图1中扣板、螺纹丝杠和箱体的***结构示意图；
图10为图1中第一传动件在一视角下的结构示意图；
图11为图1中第一传动件在二视角下的结构示意图；
图12为图1中第一传动件在三视角下的结构示意图；
图13为图1中第一传动件在四视角下的结构示意图；
附图标记：
1-第一传动件；11-第一凸台；111-第一键槽；12-第二凸台；121-第二键槽2-第二传动件；21-定位部；22-中心孔；3-限位件；31-螺纹孔；4-机架；41-滑槽；42-箱体；421-侧壁；422-缺口；423-楔形块；424-外壁；425-凹陷部；426-沉头圆孔；427-第一过孔；428-固定轴；43-扣板； 431-通孔；44-箱盖；441-窗口；442-角度刻度尺；443-第二过孔；45-限位圆盘；46-第一螺钉；47-第二螺钉；48-第三螺钉；5-螺纹丝杠；51-圆台；52-凸出部；521-凹槽；6-第二电机。
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本申请的实施例，并与说明书一起用于解释本申请的原理。
具体实施方式
为了更好的理解本申请的技术方案，下面结合附图对本申请实施例进行详细描述。
在本申请的描述中，除非另有明确的规定和限定，术语“第一”、“第二”仅用于描述的目的，而不能理解为指示或暗示相对重要性；除非另有规定或说明，术语“多个”是指两个或两个以上；术语“连接”、“固定”等均应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或一体地连接，或电连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
本申请提供一种方向盘限位装置、方向盘及车辆，涉及车辆技术领域，本申请的方向盘限位装置具体可以用于线控转向方向盘，并可以应用于车辆(图中未示出)，用于限制方向盘的最大转角，当然也可以应用于驾驶仿真模拟器、玩具车或转向装置等场景。本申请的方向盘限位装置在后续实施例内容中主要以应用于车辆为例进行介绍。
请参照图1-图4所示，本申请的方向盘限位装置包括第一传动件1、第二传动件2和限位件3。第一传动件1用于与方向盘(图中未示出)连接，第二传动件2与第一传动件1传动连接，方向盘控制第一传动件1带动第二传动件2运动，第二传动件2上设置有定位部21，限位件3可移动地设置于第二传动件2的一侧，限位件3与定位部21挡接，以限制第一传动件1转动的角度。
本实施例中，当用户转动方向盘以改变车辆的行驶方向时，方向盘带动与方向盘连接的第一传动件1转动，并带动与第一传动件1传动连接的第二传动件2运动。第二传动件2上设置有定位部21，当定位部21随第二传动件2运动并受到限位件3挡接时，能够限制第二传动件2继续运动，即限制第二传动件2的可运动范围，进而限制第一传动件1的转动角度，最终限制方向盘的转动角度范围。由于本申请中的限位件3可移动地设置于第二传动件2的一侧，即第二传动件2的定位部21与限位件3之间的相对距离可调，当定位部21位于初始位置不动，通过移动限位件3使限位件3与定位部21之间距离变小时，第二传动件2的可运动范围变小，第一传动件1和方向盘的可转动角度范围变小。同理，当定位部21位于初始位置不动，通过移动限位件3使限位件3与定位部21之间的距离变大时，第二传动件2的可运动范围变大，第一传动件1和方向盘的可转动角度范围变大。其中，上述初始位置为方向盘处于非转向状态时定位部所在的位置，如图2所示。本申请的方向盘能够带动第一传动件1沿顺时针转动或沿逆时针转动，限位件3均能挡接第二传动件2的定位部21，以限制第一传动件1沿顺时针的最大转动角度和沿逆时针最大转动角度。因此，本申请的方向盘限位装置具有可调性，可以调节方向盘的最大转角，能够适用安装在不同车型，满足不同车型的方向盘的最大转角需求，具有通用性，无需针对不同车型单独制作具有特定转角的方向盘限位装置，能够降低制作成本，提高生产效率。
其中，第一传动件1和第二传动件2传动连接，构成减速机构，以使方向盘可以带动第一传动件1至少能够旋转360度，使得位于第二传动件2的定位部21相对于第一传动件1的运动范围较小，即使得限位件3与定位部21所形成的限位结构在本申请方向盘限位装置内部 的占用空间较小。减速机构可以是齿轮减速机构、涡轮蜗杆减速机构、丝杠减速机构等，第一传动件1可以为小直径齿轮、涡轮或丝杠，相应地，第二传动件2可以为大直径齿轮、蜗杆或与丝杠螺纹连接的移动块，定位部21可以设置在大直径齿轮、蜗杆或移动块上，因此，限位件3能够限制大直径齿轮的转动角度、蜗杆的转动角度或移动块的移动距离，进而限制小直径齿轮的转动角度、涡轮的转动角度或丝杠的转动角度，最终限制方向盘的最大转动角度。
具体地，请参照图1-图4所示，本申请的第一传动件1和第二传动件2可以均为齿轮，第一传动件1的直径小于第二传动件2的直径，以形成齿轮减速机构，该减速机构的传动效率高，容易维护。
本文后续关于第一传动件1和第二传动件2的内容均以齿轮减速机构为实施例进行描述。
更具体地，请参照图1-图4所示，第一传动件1与第二传动件2的传动比可以为1:6，即第一传动件1转动六圈时，第二转动件2能够转动一圈。可以理解的是，对于乘用车、商用车等不同车辆而言，方向盘沿同一方向的最大转动圈数可以为三圈、两圈、两圈半或两圈半加四分之一圈等，为了能够适应于不同类车型。本实施例中，当限位件3与定位部21能够抵接时，第一传动件1沿同一方向至多能够转动三圈，第二传动件2至多能够带动定位部21转动半圈。同时，在具有1:6的传动比的条件下，可以使第二传动件2的最大转动角度小于360°，从而便于通过调节限位件3的位置来实现对第一传动件1转动角度的调节。
当然，第一传动件1与第二传动件2的传动比也可以为1:2、1:3、1:4、1:5或其它减速比值。
请参照图1-图4所示，本申请的方向盘限位装置还包括机架4和螺纹丝杠5，螺纹丝杠5与机架4转动连接，螺纹丝杠5与限位件3螺纹连接，限位件3与机架4滑动连接。
本实施例中，通过螺纹丝杠5与限位件3的螺纹连接以及限位件3与机架4的滑动连接，可以将螺纹丝杠5的旋转运动转化为限位件3相对于机架4的直线移动，从而改变限位件3与定位部21之间的距离，以调节定位部21的可运动范围(例如转动角度范围)，进而调节第一传动件1和方向盘的转动角度范围。同时，螺纹丝杠5与限位件3的螺纹连接具有自锁性质，无论方向盘的驱动力多大，都难以通过第一传动件1和第二传动件2的传动使定位部21推动限位件3相对于机架4直线运动。因此，本申请的方向盘限位装置具有较高的限位可靠性。
其中，由于限位件3相对于机架4沿直线移动，当第一传动件1和第二传动件2均为齿轮时，第二传动件2带动定位部21沿顺时针的可转动角度范围和沿逆时针的可转动角度范围均相同，以使第一传动件1和方向盘沿顺时针和逆时针的转动角度范围均相同。
具体地，请参照图1、图4、图5和图6所示，机架4设置有两个相对设置的滑槽41，限位件3的两端分别与滑槽41滑动连接，该结构简单，容易制作和装配。
其中，限位件3的中部设置有螺纹孔31，螺纹孔31用于螺纹丝杠5螺纹连接，以使限位件3两端与两个相对设置的滑槽41的相互作用力大小相同，从而提高限位件3的使用寿命。
更具体地，请参照图1、图4、图5和图6所示，机架4包括箱体42，滑槽41设置于箱体42的侧壁421，箱体42上设置有缺口422，缺口422与滑槽41连通以使限位件3通过缺口422安装至滑槽41中。
本实施例中，机架4包括箱体42，箱体42的侧壁421设置有滑槽41，限位件3需要先经过缺口422才能安装至箱体42内部并与位于侧壁421的滑槽41滑动运动，箱体42能够保护限位件3和滑槽41不受外部异物污染，从而保证限位件3与滑槽41滑动连接的可靠性。
请参照图1、图4、图5和图6所示，缺口422可以为楔形缺口，机架4还包括楔形块423，楔形块423与楔形缺口配合。
本实施例中，楔形块423与楔形缺口的配合一方面是为了防止限位件3从滑槽41经过缺口422脱离箱体42，另一方面，由于楔形缺口位于箱体42的侧壁421上，楔形块423能够与楔形缺口卡接，防止楔形块423从侧壁421上脱离。
请参照图4和图7所示，机架4还可以包括箱盖44，箱盖44扣合于箱体42，沿定位部21的运动轨迹，箱盖44设置有窗口441，窗口441的边缘设置有角度刻度尺442，角度刻度尺442用于标识第一传动件1或第二传动件2的转动角度范围。
本实施例中，用户可以透过箱盖44的窗口441看到定位部21的运动轨迹，当定位部21与限位件3挡接时，窗口441的边缘的角度刻度尺442便于用户了解定位部21所在位置对应的角度刻度值，从而了解第一传动件1或第二传动件2的最大转动角度的具体数值，进而可以准确调节限位件3相对于第二传动件2的位置，以满足不同车型的方向盘最大转角限位需求。
其中，本实施例的角度刻度尺442的角度刻度值对应的是第一传动件1的转动角度，便于用户能够直接了解方向盘的最大转动角度的数值。
另外，如图4所示，第三螺钉48穿设于箱盖44与箱体42螺纹连接，当箱盖44扣合于箱体42时，以使箱盖44能够限制楔形块423从位于侧壁421的楔形缺口脱离。
请参照图6-图9所示，箱体42的外壁424设置有凹陷部425，凹陷部425设置有贯穿箱体42侧壁421的沉头圆孔426，螺纹丝杠5的一端设置有圆台51，圆台51转动设置于沉头圆孔426中。机架4还包括扣板43，扣板43与凹陷部425可拆卸连接，圆台51沿螺纹丝杠5轴向的两端分别与沉头圆孔426的台阶和扣板43接触限位。
本实施例中，螺纹丝杠5通过圆台51与箱体42的沉头圆孔426转动配合，以使螺纹丝杠5能够相对于箱体42旋转，沿螺纹丝杠5轴向，圆台51的一端抵接于沉头圆孔426的台阶，圆台51的另一端抵接于安装于箱体42的扣板43，以限制螺纹丝杠5沿其自身轴向相对于箱体42运动。
其中，请参照图9所示，第二螺钉47能够穿设于扣板43与凹陷部425固定连接。
请参照图9所示，扣板43设置有通孔431，螺纹丝杠5的端部形成有凸出于圆台51的凸出部52，凸出部52穿设于通孔431，凸出部52上设置有凹槽521。
本实施例中，通孔431用于位于螺纹丝杠5的圆台51的凸出部52穿过，以使位于凸出部52的凹槽521与箱体42外部环境相连通，用户能够在箱体42外部利用工具与凹槽521配合，并利用工具驱动螺纹丝杠5转动，从而驱动限位件3相对于箱体42滑动。
其中，凹槽521为“一”字型槽，当然凹槽521也可以为“十”字形或其它形状的槽。
另外，用户可以利用手动方式或电动方式驱动螺纹丝杠5转动。
具体地，本申请的方向盘限位装置还包括第一电机(图中未示出)，第一电机(图中未示出)的输出端与螺纹丝杠5相连，用于控制螺纹丝杠5的转动，该驱动方式效率高，转动精度高，便于用户在车辆外部直接控制螺纹丝杠的转动，从而调节方向盘的最大转动角度。
请参照图1和图4所示，方向盘限位装置还包括第二电机6，第一传动件1的一端穿过箱体42与第二电机6的输出轴(图中未示出)相连。
本实施例中，第二电机6为路感电机，用于向第一传动件1以及方向盘提供回正力矩，以使用户能够通过方向盘感知车辆运动状态和路面状态等信息。
请参照图4、图8、图10-图13所示，第一传动件1设置有第一凸台11，箱体42上设置 有第一过孔427，第一凸台11转动穿设于第一过孔427，第一传动件1通过第一凸台11与第二电机6的输出轴61相连。
本实施例中，第一凸台11转动穿设于第一过孔427，一方面使得第一传动件1能够相对于箱体42做定轴转动，另一方面，第一凸台11用于与箱体42外的第二电机6的输出轴61相连，使得第一传动件1与第二传动件2的传动连接部位(例如齿轮啮合部位)位于箱体42内部，能够降低被外部异物污染的风险。
其中，第一传动件1还设置有第二凸台12，箱盖44上设置有第二过孔443，第二凸台12转动穿设于第二过孔443，用于与方向盘连接。
在上述实施例中，第一传动件1的第一凸台11和第二凸台12分别抵接于箱体42和箱盖44，以限制第一传动件1沿其自身轴向相对于箱体42运动。
请参照图10-图13所示，第一凸台11上设置有第一键槽111，第二电机6的输出轴上设置有键(图中未示出)，第一凸台11与第二电机6的输出轴通过第一键槽111与键的配合固定相连，以使第二电机6通过键连接方式向第一传动件1提供回正力矩，该连接方式简单，易制作和装配。
相应地，第二凸台12上设置有第二键槽121，用于与方向盘形成键连接，以使第一传动件1向方向盘传递回正力矩。
在上述实施例中，请参照图8所示，箱体42设置有固定轴428，用与第二传动件2的中心孔22转动配合，箱体42还设置有限位圆盘45，限位圆盘45与第二传动件2背离箱体42的一端抵接，第一螺钉46穿设于限位圆盘45并与固定轴428螺纹连接配合，以限制第二传动件2相对于固定轴428的轴向运动。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (16)

  1. 一种方向盘限位装置，其特征在于，所述方向盘限位装置包括：
    第一传动件，用于与方向盘连接；
    第二传动件，与所述第一传动件传动连接，所述方向盘控制所述第一传动件带动所述第二传动件运动，所述第二传动件上设置有定位部；
    限位件，可移动地设置于所述第二传动件的一侧，所述限位件与所述定位部挡接，以限制所述第一传动件转动的角度。
  2. 根据权利要求1所述的方向盘限位装置，其特征在于，还包括机架和螺纹丝杠，所述螺纹丝杠与所述机架转动连接，所述螺纹丝杠与所述限位件螺纹连接，所述限位件与所述机架滑动连接。
  3. 根据权利要求2所述的方向盘限位装置，其特征在于，所述机架设置有两个相对设置的滑槽，所述限位件的两端分别与所述滑槽滑动连接。
  4. 根据权利要求3所述的方向盘限位装置，其特征在于，所述机架包括箱体，所述滑槽设置于所述箱体的侧壁；
    所述箱体上设置有缺口，所述缺口与所述滑槽连通以使所述限位件通过所述缺口安装至所述滑槽中。
  5. 根据权利要求4所述的方向盘限位装置，其特征在于，所述缺口为楔形缺口，所述机架还包括楔形块，所述楔形块与所述楔形缺口配合。
  6. 根据权利要求4所述的方向盘限位装置，其特征在于，所述箱体的外壁设置有凹陷部，所述凹陷部设置有贯穿所述箱体侧壁的沉头圆孔，所述螺纹丝杠的一端设置有圆台，所述圆台转动设置于所述沉头圆孔中；
    所述机架还包括扣板，所述扣板与所述凹陷部可拆卸连接，所述圆台沿所述螺纹丝杠轴向的两端分别与所述沉头圆孔的台阶和所述扣板接触限位。
  7. 根据权利要求6所述的方向盘限位装置，其特征在于，所述扣板设置有通孔，所述螺纹丝杠的端部形成有凸出于所述圆台的凸出部，所述凸出部穿设于所述通孔，所述凸出部上设置有凹槽。
  8. 根据权利要求2所述的方向盘限位装置，其特征在于，还包括第一电机，所述第一电机的输出端与所述螺纹丝杠相连，用于控制所述螺纹丝杠的转动。
  9. 根据权利要求4所述的方向盘限位装置，其特征在于，还包括第二电机，所述第一传动件的一端穿过所述箱体与所述第二电机的输出轴相连。
  10. 根据权利要求9所述的方向盘限位装置，其特征在于，所述第一传动件设置有第一凸台，所述箱体上设置有第一过孔，所述第一凸台转动穿设于所述第一过孔，所述第一传动件通过所述第一凸台与所述第二电机的输出轴相连。
  11. 根据权利要求10所述的方向盘限位装置，其特征在于，所述第一凸台上设置有第一键槽，所述第二电机的输出轴上设置有键，所述第一凸台与所述第二电机的输出轴通过所述第一键槽与所述键的配合固定相连。
  12. 根据权利要求4-11任一项所述的方向盘限位装置，其特征在于，所述机架还包括箱盖，所述箱盖扣合于所述箱体，沿所述定位部的运动轨迹，所述箱盖设置有窗口，所述窗口的边缘设置有角度刻度尺，所述角度刻度尺用于标识所述第一传动件或所述第二传动件的转动角度范围。
  13. 根据权利要求1-12任一项所述的方向盘限位装置，其特征在于，所述第一传动件和所述第二传动件均为齿轮，所述第一传动件的直径小于所述第二传动件的直径。
  14. 根据权利要求13所述的方向盘限位装置，其特征在于，所述第一传动件与所述第二传动件的传动比为1:6。
  15. 一种方向盘，其特征在于，所述方向盘包括如权利要求1-14中任一项所述的方向盘限位装置。
  16. 一种车辆，其特征在于，所述车辆包括如权利要求1-14中任一项所述的方向盘限位装置。
PCT/CN2022/109164 2022-07-29 2022-07-29 一种方向盘限位装置、方向盘及车辆 WO2024021087A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102176291A (zh) * 2011-01-22 2011-09-07 浙江大学 一种转角范围可调的方向盘路感模拟装置
DE102013014133B3 (de) * 2013-08-23 2014-10-30 Audi Ag Lenkanschlag
CN108715186A (zh) * 2018-05-24 2018-10-30 杭州和利时自动化有限公司 车辆及其转向限位***
CN111038574A (zh) * 2018-10-11 2020-04-21 现代自动车株式会社 线控转向***的转向装置
FR3100789A1 (fr) * 2019-09-12 2021-03-19 Psa Automobiles Sa Systeme de volant de direction electrique de vehicule comportant des butees mobiles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102176291A (zh) * 2011-01-22 2011-09-07 浙江大学 一种转角范围可调的方向盘路感模拟装置
DE102013014133B3 (de) * 2013-08-23 2014-10-30 Audi Ag Lenkanschlag
CN108715186A (zh) * 2018-05-24 2018-10-30 杭州和利时自动化有限公司 车辆及其转向限位***
CN111038574A (zh) * 2018-10-11 2020-04-21 现代自动车株式会社 线控转向***的转向装置
FR3100789A1 (fr) * 2019-09-12 2021-03-19 Psa Automobiles Sa Systeme de volant de direction electrique de vehicule comportant des butees mobiles

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