Controller base of drive-by-wire power-assisted steering system

Abstract

The utility model discloses a drive-by-wire power-assisted steering system controller base which comprises a base body, a groove is formed in the center of the top face of the base body, a rotating seat is rotationally connected in the groove, an installation groove is formed in the top face of the rotating seat, a controller is movably connected in the installation groove, a rectangular frame is fixedly connected to the outer portion of the controller in a sleeved mode, and a sleeve cover is attached to the top face of the rectangular frame. The sleeve cover is movably connected to the top face of the base, a through groove is formed in the top face of the sleeve cover and located over the controller, two guide grooves in mirror symmetry axially penetrate through the top face of the sleeve cover, and a limiting piece movably connected with the base is movably connected into each guide groove. According to the utility model, the controller is movably connected to the base through the sleeve cover, the limiting piece, the rotating block and the bolt, so that the controller and the base can be quickly disassembled and assembled, and the convenience when the controller is disassembled and assembled from the base is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of controllers, in particular to a controller base for a steer-by-wire power steering system. Background Art

[0002] An electric power steering system (EPS) generally consists of a mechanical steering system plus a torque sensor, a vehicle speed sensor, an electronic control unit, a reducer, a motor, etc. On the basis of a traditional mechanical steering system, according to the torque signal on the steering wheel and the vehicle speed signal of the vehicle, an electronic control device is used to make the motor generate auxiliary power of corresponding magnitude and direction to assist the driver in steering operation. Specifically, when the driver operates the steering wheel to steer, the torque sensor detects the steering of the steering wheel and the magnitude of the torque, and transmits a voltage signal to the electronic control unit. The electronic control unit issues an instruction to the motor controller according to the torque voltage signal, the rotation direction and the vehicle speed signal detected by the torque sensor, etc., so that the motor outputs a steering assist torque of corresponding magnitude and direction, thereby generating auxiliary power. When the vehicle does not steer, the electronic control unit does not issue an instruction to the motor controller, and the motor does not work.

[0003] The existing controller base of the steer-by-wire power steering system is inconvenient for multi-directional disassembly and installation of the controller, resulting in inconvenience during the disassembly and installation process. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a controller base for a steer-by-wire power steering system is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a controller base for a steer-by-wire power steering system, including a base, a groove is opened at the center of the top surface of the base, a rotating seat is rotatably connected in the groove, an installation groove is opened on the top surface of the rotating seat, a controller is movably connected in the installation groove, a rectangular frame is fixedly sleeved outside the controller, the top surface of the rectangular frame is attached to a cover, the cover is movably connected to the top surface of the base, a through groove is opened on the top surface of the cover, the through groove is located directly above the controller, two mirror-symmetrical guiding grooves axially penetrate the top surface of the cover, and a limiting member movably connected to the base is movably connected in each guiding groove.

[0006] As a further description of the above technical scheme: an annular groove is opened on the top surface of the base, the cover is movably connected in the annular groove, external threads are provided in the annular groove, internal threads adapted to the external threads are provided on the inner side of the cover, and the cover is threadedly connected in the annular groove.

[0007] As a further description of the above technical solution: The limiting member includes a limiting block telescopically connected in the guiding groove. A limiting groove adapted to the limiting block is formed on the top surface of the base. The limiting block is movably inserted into the limiting groove. A bolt is movably connected in the limiting block, and the bolt is movably connected in the limiting groove.

[0008] As a further description of the above technical solution: A countersunk hole vertically penetrates through the top surface of the limiting block. The bolt is rotatably connected in the countersunk hole. A threaded groove adapted to the bolt is vertically formed on the top surface of the limiting groove. The end of the bolt extends into the threaded groove and is threadedly connected thereto.

[0009] As a further description of the above technical solution: Two mirror-symmetrical sliding grooves are vertically formed on the inner wall of the guiding groove. A slider is slidably connected in each of the sliding grooves. The slider is fixedly connected to the limiting block. A spring is fixedly connected between each of the sliders and the sliding groove.

[0010] As a further description of the above technical solution: Two mirror-symmetrical blind holes are vertically formed on the bottom surface of the sleeve cover. A plug is axially inserted into each of the blind holes. The plug is vertically fixed on the top surface of the rectangular frame.

[0011] The utility model has the following beneficial effects:

[0012] Compared with the prior art, for the controller base of the steer-by-wire power steering system, by movably connecting the controller to the base through the sleeve cover, the limiting member, the rotating block and the plug, it is convenient to quickly disassemble and install the controller and the base, and the convenience during the disassembly and installation of the controller from the base is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a three-dimensional overall structure diagram of a controller base of a steer-by-wire power steering system proposed by the utility model;

[0014] Figure 2 is a main sectional view of the overall structure of a controller base of a steer-by-wire power steering system proposed by the utility model;

[0015] Figure 3 is a side sectional view of the overall structure of a controller base of a steer-by-wire power steering system proposed by the utility model;

[0016] Figure 4 is a controller base of a steer-by-wire power steering system proposed by the utility model Figure 2 The enlarged view of the structure at A in.

[0017] Legend:

[0018] 1. Base; 2. Annular groove; 3. Sleeve cover; 4. Bolt; 5. Through groove; 6. Guide groove; 7. Countersunk hole; 8. Limit block; 9. External thread; 10. Groove; 11. Rotating seat; 12. Installation groove; 13. Controller; 14. Rectangular frame; 15. Internal thread; 16. Blind hole; 17. Plug pin; 18. Slide groove; 19. Slide block; 20. Spring; 21. Limit groove; 22. Thread groove. Detailed implementation manner

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Refer to Figures 1 to 4 , a controller base of a wire-controlled power steering system provided by the present invention: including a base 1, a groove 10 is opened at the center of the top surface of the base 1, a rotating seat 11 is rotatably connected in the groove 10, an installation groove 12 is opened on the top surface of the rotating seat 11, a controller 13 is movably connected in the installation groove 12, a rectangular frame 14 is fixedly sleeved outside the controller 13, the top surface of the rectangular frame 14 is attached to a sleeve cover 3, the sleeve cover 3 is movably connected to the top surface of the base 1, an annular groove 2 is opened on the top surface of the base 1, the sleeve cover 3 is movably connected in the annular groove 2, an external thread 9 is provided in the annular groove 2, an internal thread 15 adapted to the external thread 9 is provided on the inner side of the sleeve cover 3, the sleeve cover 3 is threadedly connected in the annular groove 2, a through groove 5 is opened on the top surface of the sleeve cover 3, the through groove 5 is located directly above the controller 13, two mirror-symmetrical guide grooves 6 are axially penetrated through the top surface of the sleeve cover 3, and a limiting member movably connected to the base 1 is movably connected in each guide groove 6; the limiting member includes a limit block 8 telescopically connected in the guide groove 6, two mirror-symmetrical slide grooves 18 are vertically opened on the inner wall of the guide groove 6, a slide block 19 is slidably connected in each slide groove 18, the slide block 19 is fixedly connected to the limit block 8, a spring 20 is fixedly provided between each slide block 19 and the slide groove 18, a limit groove 21 adapted to the limit block 8 is opened on the top surface of the base 1, the limit block 8 is movably inserted into the limit groove 21, a bolt 4 is movably connected in the limit block 8, the bolt 4 is movably connected in the limit groove 21, a countersunk hole 7 is vertically penetrated through the top surface of the limit block 8, the bolt 4 is rotatably connected in the countersunk hole 7, a thread groove 22 adapted to the bolt 4 is vertically opened on the top surface of the limit groove 21, the end of the bolt 4 extends into the thread groove 22 and is threadedly connected thereto, two mirror-symmetrical blind holes 16 are vertically opened on the bottom surface of the sleeve cover 3, and a plug pin 17 is axially inserted into each blind hole 16, and the plug pin 17 is vertically fixed on the top surface of the rectangular frame 14.

[0021] By movably connecting the controller 13 to the base 1 using the cover 3, the limiting member, the rotating block, and the pin 17, it is convenient to quickly disassemble and install the controller 13 and the base 1, improving the convenience when disassembling and installing the controller 13 from the base 1.

[0022] Working principle: When installing the controller 13 on the base 1, first install the controller 13 in the installation groove 12 on the top surface of the rotating base 11 through the rectangular frame 14. Then install the cover 3 in the annular groove 2. During installation, align the blind hole 16 on the bottom surface of the cover 3 with the pin 17 on the top surface of the rectangular frame 14 for installation. Then rotate the cover 3 through the protruding limiting block 8 so that the cover 3 rotates into the annular groove 2. The bottom surface of the cover 3 abuts against the top surface of the rectangular frame 14. At this time, the limiting block 8 is directly above the limiting groove 21. Then press down the limiting block 8 so that the end of the bolt 4 abuts against the inlet end of the threaded groove 22, and at the same time, the spring 20 is compressed slightly downward. Then rotate the bolt 4 and screw the bolt 4 into the threaded groove 22. At the same time, the limiting block 8 will continue to descend, so that the bottom surface of the limiting block 8 completely abuts against the bottom wall of the limiting groove 21, and at the same time, the spring 20 is compressed to the limit position. At this time, the top surface of the limiting block 8 is flush with the top surface of the cover 3, thus completing the installation of the controller 13 and the base 1.

[0023] During disassembly, just rotate the bolt 4 in the reverse direction so that the bolt 4 is screwed out of the threaded groove 22. At the same time, the spring 20 in the compressed state is reset, so that the limiting block 8 moves out of the limiting groove 21, and the top surface of the limiting block 8 extends out of the guiding groove 6. Then drive the cover 3 to rotate through the limiting block 8 so that the cover 3 rotates out of the annular groove 2. Then separate the cover 3 from the base 1, and then pull the controller 13 upward out of the installation groove 12 through the pin 17.

[0024] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A controller base for a wire-controlled power steering system, comprising a base (1), characterized in that: A groove (10) is provided at the centre of the top surface of the base (1), and a rotating base (11) is rotatably connected in the groove (10). A mounting groove (12) is provided on the top surface of the rotating base (11), and a controller (13) is movably connected in the mounting groove (12). The controller (13) is fixedly sleeved with a rectangular frame (14) on the outside, and a cover (3) is fitted on the top surface of the rectangular frame (14). The cover (3) is movably connected to the top surface of the base (1). A through groove (5) is provided on the top surface of the cover (3), and the through groove (5) is located directly above the controller (13). The top surface of the cover (3) axially passes through two mirror-symmetrical guide grooves (6), and each of the guide grooves (6) is movably connected to a limiting member movably connected to the base (1).

2. The controller base of a wire-controlled power steering system according to claim 1, characterized in that: An annular groove (2) is provided on the top surface of the base (1), the cover (3) is movably connected in the annular groove (2), an external thread (9) is provided in the annular groove (2), an internal thread (15) matching the external thread (9) is provided on the inner side of the cover (3), and the cover (3) is threadedly connected in the annular groove (2).

3. The controller base of a wire-controlled power steering system according to claim 1, characterized in that: The limiting member comprises a limiting block (8) telescopically connected in the guide groove (6); a limiting groove (21) adapted to the limiting block (8) is provided on the top surface of the base (1); the limiting block (8) is movably inserted in the limiting groove (21); a bolt (4) is movably connected in the limiting block (8); and the bolt (4) is movably connected in the limiting groove (21).

4. The controller base of a power-steering-by-wire system according to claim 3, characterized in that: The top surface of the limiting block (8) vertically penetrates the countersunk hole (7), the bolt (4) is rotatably connected in the countersunk hole (7), and a threaded groove (22) adapted to the bolt (4) is vertically formed on the top surface of the limiting groove (21), and the end of the bolt (4) extends into the threaded groove (22) and is threadedly connected thereto.

5. The controller base of a power-steering-by-wire system according to claim 3, characterized in that: Two mirror-symmetrical sliding grooves (18) are vertically formed on the inner wall of the guide groove (6), a sliding block (19) is slidably connected in each of the sliding grooves (18), the sliding block (19) is fixedly connected to the limit block (8), and a spring (20) is commonly fixed between each of the sliding blocks (19) and the sliding groove (18).

6. The controller base of a wire-controlled power steering system according to claim 1, characterized in that: Two mirror-symmetrical blind holes (16) are vertically formed on the bottom surface of the sleeve cover (3), and a latch (17) is axially inserted into each of the blind holes (16). The latch (17) is vertically fixed to the top surface of the rectangular frame (14).

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