Automobile gear detection data acquisition device

Abstract

The utility model discloses an automobile gear detection data acquisition device which comprises a gear support, a swing rod, an automobile stop lever and a shell assembly. The shell assembly comprises a shell, a Hall element, a radial magnetizing magnet, a rotating unit and a torsional spring; the shell is fixed on the gear bracket; the radial magnetizing magnet is fixed on the rotating unit; the Hall component and the radial magnetizing magnet are oppositely arranged; the oscillating bar comprises a first oscillating bar and a second oscillating bar which are arranged in a cross shape; one end of the swing rod is fixedly connected with the rotating unit in the corresponding shell assembly, and the other end of the swing rod abuts against the automobile gear lever through a torsional spring arranged on the rotating unit in the corresponding shell assembly in a sleeving mode. According to the utility model, through the innovative structural design, related data used for identifying the gear information of the automobile stop lever can be obtained, and the gear identification of the current automobile stop lever is realized in cooperation with the main control module.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile gear position detection, in particular to an automobile gear position detection data acquisition device. Background Art

[0002] With the development of automobile technology and the progress of society, cars have begun to enter Chinese families and are growing rapidly. Non-professional drivers will account for an increasing proportion. The operating level of non-professional drivers directly affects traffic safety. The traditional method of training drivers is time-consuming and laborious. Therefore, in recent years, the use of car robot coaches to train drivers for driving tests and test evaluation has received more and more attention. Whether in driving test training or driving test evaluation, the detection and identification of car gears are indispensable.

[0003] At present, the main methods of automobile gear detection are: 1) using infrared photoelectric switches with specially structured light shielding plates for detection; 2) designing circuits to infer gear information by detecting the position of the transmission gear; 3) using specially structured gear position sensors to measure gear information, where the sensor is a fan-shaped inductor sensor; 4) using on-board diagnostic technology to read gear information from the vehicle diagnostic port. However, the above detection methods all have problems such as complex detection structure, inconvenient vehicle modification and installation, and high technical costs. Utility Model Content

[0004] In view of the above technical problems, the utility model provides a vehicle gear position detection device which has a simple structure, is easy to install and can detect accurately.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A vehicle gear detection data acquisition device comprises a gear bracket, a rocker arm, a vehicle gear lever and a housing assembly; the rocker arm comprises a first rocker arm and a second rocker arm arranged in a cross shape; the housing assembly comprises two, which are respectively connected to the first rocker arm and the second rocker arm; the gear bracket comprises a connecting portion, which has two pairs of mounting holes with different hole spacings and heights; the housing assembly comprises a housing, a Hall element, a radially magnetized magnet, a rotating unit and a torsion spring; the housing is fixed on the gear bracket; the radially magnetized magnet is fixed on the rotating unit; the Hall element and the radially magnetized magnet are arranged oppositely; one end of the rocker arm is fixedly connected to the rotating unit in the corresponding housing assembly, and the other end is pressed against the vehicle gear lever through the torsion spring sleeved on the rotating unit in the corresponding housing assembly.

[0007] As an optional scheme, the rotating unit includes a shaft retaining ring, a bearing and a rotating shaft, the bearing is sleeved on the rotating shaft and limited by the shaft retaining ring; the rotating shaft includes a front part, a middle part and a rear part of the shaft; the rear end face of the rotating shaft is provided with a groove for installing a radially magnetized magnet, and the front end face is provided with a fixing hole for inserting a rocker rod; the fixing hole extends from the front part of the shaft to the middle part of the shaft, and the middle part of the shaft is circumferentially provided with a plurality of screw holes connected to the fixing hole; the rear part of the shaft is provided with a limiting groove for installing the shaft retaining ring; the housing assembly also includes a set screw installed in the screw hole in the middle part of the rotating shaft.

[0008] As an optional solution, the shell has a first cavity and a second cavity that are interconnected; the Hall element is arranged in the first cavity; the rotating unit is arranged in the second cavity; the first cavity is also provided with a wire hole connected to the outside, and the Hall element is electrically connected to the main control module through a signal line passing through the wire hole.

[0009] As an optional solution, the rotating shaft is a variable diameter structure, and the diameters of the front part, the middle part and the rear part of the shaft decrease successively.

[0010] As an optional solution, the torsion spring includes a torsion spring body and hooks and positioning ends at both ends of the torsion spring body; the front part of the shaft and part of the middle part of the shaft extend out of the shell, the torsion spring body is sleeved on the protruding part of the middle part of the shaft, and the hook is hooked on the rocker arm; a slot is provided at the bottom of the shell for fixing the positioning end of the torsion spring.

[0011] As an optional solution, the rocker arm is an approximately Z-shaped structure, including a long rod and a short rod arranged in parallel, and a connecting rod for connecting the long rod and the short rod; the short rod is inserted into the housing assembly and fixedly connected to the rotating unit, and the long rod is close to the vehicle gear lever.

[0012] As an optional solution, the gear bracket includes a base plate, a connecting plate and a connecting portion; the connecting plate is arranged vertically to the base plate, and the connecting portion is arranged at the end of the connecting plate; the connecting portion has four connecting ends, and each connecting end is provided with a mounting hole; two groups of through holes are provided on the base plate, and the shell is fixed to the base plate by self-tapping screws installed in the through holes.

[0013] As an optional solution, the gear bracket is formed in one piece by bending sheet metal.

[0014] As an optional solution, the shell includes an upper shell and a lower shell that are used together; the shell is fixed to the gear bracket by self-tapping screws installed in the through hole and penetrating the upper shell and the lower shell.

[0015] When the vehicle is shifting gears, in the vehicle gear detection data acquisition device, the vehicle gear lever drives the first swing rod and the second swing rod to rotate, and then drives the corresponding rotation unit and the radially magnetized magnet to rotate, so that the magnetic suction force received by the Hall component changes; the Hall component is used to convert the magnetic suction force into an electrical signal and send it to the main control module.

[0016] The utility model has the following beneficial effects:

[0017] (1) The vehicle gear detection data acquisition device disclosed by the utility model determines the inclination angles of the vehicle gear lever in two perpendicular directions through a mechanical structure by pressing two swing rods against the vehicle gear lever through a torsion spring, and then obtains relevant data for identifying the gear information of the vehicle gear lever, and is used in cooperation with the main control module to realize the identification of the gear where the current vehicle gear lever is located, and has the advantages of high identification accuracy and strong reliability.

[0018] (2) The vehicle gear detection data acquisition device disclosed by the utility model uses sheet metal bending for the gear bracket. While being responsible for installing the housing assembly, it is equipped with two groups of mounting holes with different spacing sizes, and only two screws are needed to install the gear detection device on the mounting plane at the bottom of the vehicle gear lever of different vehicle models, and has high applicability.

[0019] (3) The vehicle gear detection data acquisition device disclosed by the utility model has a simple structure, is easy to install, and has a very low cost. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of the vehicle gear detection data acquisition device disclosed by the embodiment of the utility model.

[0021] Figure 2 is an exploded view of the vehicle gear detection data acquisition device disclosed by the embodiment of the utility model.

[0022] Figure 3 is an exploded view of the housing assembly disclosed by the embodiment of the utility model.

[0023] Figure 4 is a three-dimensional view of the gear bracket disclosed by the embodiment of the utility model.

[0024] Figure 5 is a schematic internal structure diagram of the housing assembly disclosed by the embodiment of the utility model.

[0025] Figure 6 is a sectional view of the housing assembly disclosed by the embodiment of the utility model. Detailed Embodiment

[0026] The technical solutions of the present utility model will be clearly and completely described below in conjunction with specific embodiments and the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0027] In the description of the present utility model, if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", "left", "right", "top", "bottom", "front", "rear", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model. The terms "comprising" and "having" in the present utility model and any of their variations are intended to cover non-exclusive inclusion, that is, they may include other units not clearly listed or inherent to these products or devices. In addition, if terms such as "first", "second", etc. appear, they are used to distinguish similar objects and do not have to be used to describe a specific order or relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific circumstances.

[0028] Combined with Figures 1 to 6 As shown, the embodiment of the present utility model discloses an automobile gear position detection data acquisition device, which mainly includes a gear position bracket 1, a left swing rod 2, a right swing rod 3, an automobile gear lever 4, and a housing assembly 5.

[0029] The gear position bracket 1 is arranged at the bottom of the automobile gear lever 4 and is fixedly connected to the installation plane at the bottom of the automobile gear lever. As Figure 4 shown, the gear position bracket 1 mainly includes a bottom plate 11, a connecting plate 12, and a connecting portion 13, which can be integrally formed by sheet metal bending. Among them, the bottom plate 11 is in an approximate L-shaped structure, and two groups of through holes 14 are opened on the bottom plate 11 for installing the housing assembly 5. The connecting plate 12 is arranged perpendicular to the bottom plate 11, and the connecting portion 13 is fixed at the end of the connecting plate 12 and is arranged parallel to the bottom plate 11. The connecting portion 13 has four connecting ends, and an installation hole is opened on each connecting end. Among them, the heights of the two outer installation holes are the same and are a pair, called installation holes 151; the heights of the two inner installation holes are the same and are another pair, called installation holes 152. Through these two pairs of installation holes with different hole distances and heights, it can be adapted to the use of different types of automobile gear levers for different vehicle models.

[0030] When installing and using, remove the soft cover outside the vehicle gear lever 4, and the vehicle gear lever 4 inside and the installation plane at the bottom of the vehicle gear lever can be seen. The gear position bracket 1 is fixedly connected to the installation plane at the bottom of the vehicle gear lever through self-tapping screws installed in the installation hole 151 or the installation hole 152; for disassembly, just unscrew the self-tapping screws. In this way, the disassembly and assembly of the vehicle gear position detection data acquisition device are simple and convenient for maintenance.

[0031] Combined with Figure 1 and Figure 2 As shown, the left swing rod 2 and the right swing rod 3 are collectively called swing rods. Taking the left swing rod 2 as an example, the left swing rod 2 is an approximately Z-shaped structure, including a long rod 21 and a short rod 22 arranged in parallel, and a connecting rod 23 for connecting the long rod 21 and the short rod 22. The long rod 21 is closely attached to the vehicle gear lever 4 through a torsion spring, and the short rod 22 is fixed inside the housing assembly 5. The right swing rod 3 has a similar structure to the left swing rod 2, and also includes a long rod 31, a short rod 32 and a connecting rod 33. Due to the position difference between the two, the main difference is that the connecting rod 33 of the right swing rod 3 is shorter. The left swing rod 2 and the right swing rod 3 are respectively fixed at the front ends of the two housing assemblies 5, arranged in a cross-intersecting shape, and both are closely attached to the vehicle gear lever 4.

[0032] As Figure 2 and Figure 3 As shown, the housing assembly 5 includes a lower housing 51, an upper housing 52, a Hall component 53, a radially magnetized magnet 54, a shaft retaining ring 55, a bearing 56, a rotating shaft 57, a set screw 58 and a torsion spring 59. Among them, the lower housing 51 and the upper housing 52 together form a complete housing, and can be fixed to the gear position bracket 1 through self-tapping screws installed in the through hole 14 and penetrating through the upper and lower housings. The rotating shaft 57 is a variable-diameter structure, the diameter of the front part of the shaft is larger than the diameter of the middle part of the shaft, and the diameter of the middle part of the shaft is larger than the diameter of the rear part of the shaft. A groove 571 is provided on the rear end face of the rotating shaft 57 for placing the radially magnetized magnet 54; a fixing hole 572 is provided on the front end face of the rotating shaft 57, and the fixing hole 572 extends from the front part of the shaft to the middle part of the shaft for inserting the swing rod. Four screw holes 573 communicating with the fixing hole 572 are circumferentially provided in the middle part of the shaft for installing the set screw 58; a circumferential limiting groove 574 is provided on the rear part of the shaft for installing the shaft retaining ring 55. During installation, first sleeved the bearing 56 on the rear part of the shaft, and then snap the shaft retaining ring 55 into the limiting groove 574 for limiting the rotating shaft 57; the radially magnetized magnet 54 can be fixed in the groove 571 by pasting. Thus, the bearing 56, the shaft retaining ring 55 and the rotating shaft 57 form an integral body, which can be called a rotating unit, and the radially magnetized magnet 54 is fixed at the rear end of the rotating unit.

[0033] At the tail parts of the lower housing 51 and the upper housing 52, there are respectively provided with a groove 511 and a groove 521. After the groove 511 and the groove 521 are aligned, a first cavity is formed. The shape and size of the first cavity can match the Hall element 53, enabling the Hall element 53 to be placed in the first cavity. At the middle parts of the lower housing 51 and the upper housing 52, there are provided with a groove 512 and a groove 522. After the groove 511 and the groove 521 are aligned, a second cavity is formed for placing the rotating unit. It should be noted that after the rotating unit is installed, a part of the rotating shaft 57 extends out of the second cavity, and the largest diameter part of the second cavity can just hold the bearing 56, making the bearing 56 relatively fixed and only the rotating shaft rotates. The first cavity and the second cavity are communicated, so that the Hall element 53 installed in the first cavity and the radially magnetized magnet 54 on the rotating unit installed in the second cavity are arranged opposite to each other. On the lower housing 51 and the upper housing 52, there are also provided with notches. After the lower housing 51 and the upper housing 52 are aligned, at the position of the first cavity, there is also a wire hole 531 communicating with the outside for threading a signal wire. In other embodiments, the wire hole 531 can also be separately opened on the upper housing 51 or the lower housing 52. When in use, the Hall element 53 is subjected to the magnetic suction force of the radially magnetized magnet 54, and converts the magnetic suction force into an electric signal and transmits it to the main control module through the signal wire threaded in the wire hole 531. At the bottom of the lower housing 51, there is also provided with a card slot 513 for fixing the torsion spring 59.

[0034] The torsion spring 59 is mainly used to provide torque to keep the swing rod always close to the vehicle gear lever 4. The torsion spring 59 is mainly composed of a torsion spring body 591 and hooks 592 and positioning ends 593 at both ends of the torsion spring body 591. Taking the left swing rod 2 and its corresponding housing assembly 5 as an example, during installation, first insert the short rod 22 of the left swing rod 2 into the fixing hole 572 on the front end face of the rotating shaft 57, and then fasten and fix it through the set screws 58 in the four screw holes 573; then combine and cover the lower housing 51 and the upper housing 52 to form an integral body, that is, the housing; after the upper and lower housings are combined, a part of the rotating shaft 57 extends out of the housing, and the middle part and the front part of the shaft extend out of the housing. Hook the positioning end 593 of the torsion spring 59 into the card slot 513 at the bottom of the lower housing 51, sleuth the torsion spring body 591 on the middle part of the rotating shaft 57, and hook the hook 592 of the torsion spring 59 on the left swing rod 2; then install and fix the housing assembly on the gear lever bracket 1 through the self-tapping screws installed at the through holes 14 on the gear lever bracket 1. At the same time, the through self-tapping screws also press the upper and lower housings tightly. At this time, the left swing rod 2 is pressed against the middle part of the vehicle gear lever 4 through the torsion spring 59; then install the right swing rod 3 in the same way.

[0035] The vehicle gear detection data acquisition device of the present utility model can be used to identify the gear information when driving a vehicle. When the vehicle is in different gears, the vehicle gear lever 4 is in different angular positions, driving the left swing rod 2 and the right swing rod 3 leaning on it to rotate, thereby driving the two rotating shafts 57 to rotate, so that the radially magnetized magnet 54 at the tail of the rotating shaft 57 rotates accordingly. The magnetic suction force acting on the Hall element 53 changes, and the Hall element 53 converts the magnetic suction force into an electrical signal and sends it to the main control module through a signal line. It can be understood that the rotation angle of the radially magnetized magnet 54 and the output electrical signal of the corresponding Hall element 53 are in one-to-one correspondence. Therefore, the gear position of the vehicle gear lever can be judged by the output electrical signal of the Hall element 53.

[0036] After the gear detection device is installed and used for the first time (i.e., the debugging stage), the vehicle gear lever 4 is toggled to each gear, and the electrical signals given by the two Hall elements 53 in each gear are recorded, and the corresponding relationship between the gear and the electrical signal is stored in the main control module. For example, after the vehicle gear detection system is installed, first push the vehicle gear lever 4 to the R gear, and the Hall values of the left swing rod 2 and the right swing rod 3 are read as 850 and 700 respectively; continue to push the gear to the 1st gear, and the Hall values of the left swing rod 2 and the right swing rod 3 are 870 and 860 respectively; then push the gear to the 3rd gear, and the Hall values of the left swing rod 2 and the right swing rod 3 are 890 and 970 respectively, and so on for the other gears, recording the two Hall values corresponding to each gear. To improve the adaptability of the system, each gear can be tested multiple times in the debugging stage to obtain the Hall value range of the left swing rod 2 and the right swing rod 3 when the vehicle gear lever 4 is pushed to this gear. After the debugging is completed, during actual use, after the main control module receives the electrical signal sent by the Hall element 53, the real-time signals output by the two Hall elements 53 are compared with the numerical ranges tested for each gear to judge the current gear position of the vehicle gear lever 4, thereby achieving the purpose of identifying the vehicle gear according to the output signal of the Hall element 53. It should be noted that the present utility model comprehensively judges the current gear position by combining the output electrical signals of the two Hall elements 53, which can further increase the effectiveness and accuracy of the identification.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. An automobile gear detection data acquisition device, characterized in that, It includes a gear bracket, a rocker arm, a car gear lever and a housing assembly; The swing rod comprises a first swing rod and a second swing rod arranged in a cross shape; the housing assembly comprises two, which are respectively connected to the first swing rod and the second swing rod; The gear bracket includes a connecting portion, and the connecting portion has two pairs of mounting holes with different hole spacings and heights; the housing assembly includes a housing, a Hall element, a radially magnetized magnet, a rotating unit and a torsion spring; the housing is fixed on the gear bracket; the radially magnetized magnet is fixed on the rotating unit; the Hall element and the radially magnetized magnet are arranged opposite to each other; One end of the swing rod is fixedly connected to the rotating unit in the corresponding housing assembly, and the other end is closely attached to the vehicle gear lever through a torsion spring sleeved on the rotating unit in the corresponding housing assembly.

2. The vehicle gear position detection data acquisition device according to claim 1, characterized in that The rotating unit comprises a shaft retaining ring, a bearing and a rotating shaft, wherein the bearing is sleeved on the rotating shaft and is limited by the shaft retaining ring; The rotating shaft comprises a front part, a middle part and a rear part; a groove for installing a radial magnetized magnet is provided on the rear end face of the rotating shaft, and a fixing hole for inserting a swing rod is provided on the front end face; the fixing hole extends from the front part of the shaft to the middle part of the shaft, and a plurality of screw holes in communication with the fixing hole are provided in the circumferential direction of the middle part of the shaft; a limiting groove for installing a shaft retaining ring is provided on the rear part of the shaft; The housing assembly also includes a set screw installed in a screw hole in the middle of the rotating shaft.

3. The vehicle gear position detection data acquisition device according to claim 2, characterized in that, The shell has a first cavity and a second cavity that are interconnected; the Hall element is arranged in the first cavity; the rotating unit is arranged in the second cavity; the first cavity is also provided with a wire hole that is connected to the outside, and the Hall element is electrically connected to the main control module through a signal line passing through the wire hole.

4. The vehicle gear detection data acquisition device according to claim 2, wherein The rotating shaft is a variable diameter structure, and the diameters of the front part, the middle part and the rear part of the shaft decrease in sequence.

5. The vehicle gear position detection data acquisition device according to claim 2, characterized in that, The torsion spring includes a torsion spring body and hooks and positioning ends at both ends of the torsion spring body; the front part of the shaft and part of the middle part of the shaft extend out of the shell, the torsion spring body is sleeved on the protruding part of the middle part of the shaft, and the hook is hooked on the rocker arm; a slot for fixing the positioning end of the torsion spring is provided at the bottom of the shell.

6. The vehicle gear detection data acquisition device according to claim 1, characterized in that, The swing rod is an approximately Z-shaped structure, including a long rod and a short rod arranged in parallel, and a connecting rod for connecting the long rod and the short rod; the short rod is inserted into the housing assembly and fixedly connected to the rotating unit, and the long rod is close to the vehicle gear lever.

7. The vehicle gear detection data acquisition device according to claim 1, wherein, The gear bracket includes a base plate, a connecting plate and a connecting portion; the connecting plate is arranged vertically to the base plate, and the connecting portion is arranged at the end of the connecting plate; the connecting portion has four connecting ends, and each connecting end is provided with a mounting hole; two groups of through holes are provided on the base plate, and the shell is fixed to the base plate by self-tapping screws installed in the through holes.

8. The automotive gear position detection data acquisition device according to claim 7, wherein, The gear bracket is integrally formed by bending sheet metal.

9. The vehicle gear position detection data acquisition device according to claim 1, wherein, The housing comprises an upper housing and a lower housing which are used together; the housing is fixed to the gear support by self-tapping screws which are installed in the through hole and pass through the upper housing and the lower housing.

10. The vehicle gear detection data acquisition device according to any one of claims 1 to 9, characterized in that, When the vehicle shifts gears, the gear lever of the vehicle drives the first swing rod and the second swing rod to rotate, thereby driving the corresponding rotating unit and the radially magnetized magnet to rotate, so that the magnetic attraction force received by the Hall component changes; the Hall component is used to convert the magnetic attraction force into an electrical signal and send it to the main control module.

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