Electronic shifters and control methods thereof, and vehicles

Abstract

The present application provides an electronic gear shifter, a control method thereof, and a vehicle. The electronic gear shifter comprises a gear shifter handle, X detection units, and a processor. The gear shifter handle is switchable between multiple gear positions. Each detection unit is connected to the gear shifter handle and is configured to detect the gear position of the gear shifter handle and generate corresponding gear shifter handle position information. Different detection units generate gear shifter handle position information according to different detection principles, and X≥2. The processor is electrically connected to the X detection units and a gearbox controller. The processor is configured to acquire the gear shifter handle position information generated by the X detection units, determine the gear position of the gear shifter handle according to the gear shifter handle position information, and determine target gear information of the electronic gear shifter based on at least the position change of the gear shifter handle when the gear position of the gear shifter handle is determined to change, and send the target gear information to the gearbox controller.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic shifters, in particular to an electronic shifter, a control method thereof and a vehicle. BACKGROUND

[0002] At present, the development trend of automobile intelligence and networking is increasingly presented, and technologies such as automatic parking, intelligent auxiliary driving and remote driving are gradually landing. The electronicization of the automobile shifter is the premise and basis for realizing the foregoing functions, and the electronicization of the automobile shifter cannot be separated from the detection of the gear position. In related technologies, the existing electronic shifter generally uses multiple Hall sensors as position sensors, and detects the position change of the shifter handle when switching between multiple gear positions based on the Hall electromagnetic induction principle, so as to know the gear shifting intention of the driver. However, the detection principle of the existing electronic shifter using multiple Hall sensors to detect the gear position is the same, and once all the sensors fail at the same time due to the same reason (such as external homogeneous interference of the sensor and internal homogeneous fault of the sensor), the electronic shifter will not be able to detect the change of the gear position, resulting in failure of the shifter. SUMMARY

[0003] The purpose of the present application is to provide an electronic shifter, a control method thereof and a vehicle, which uses at least two detection units with different detection principles to detect the position change of the shifter handle when switching between multiple gear positions, so as to improve the accuracy of detection and reduce the failure probability of the electronic shifter.

[0004] In order to achieve the above-mentioned purpose, in a first aspect, the present application provides an electronic shifter, comprising:

[0005] a shifter handle, which is switchable between multiple gear positions;

[0006] X detection units, each of which is connected with the shifter handle and is used to detect the gear position of the shifter handle and generate corresponding shifter handle position information; wherein different detection units generate shifter handle position information according to different detection principles, and X≥2; and

[0007] a processor, which is electrically connected with the X detection units and the gearbox controller, and is used to acquire the shifter handle position information generated by the X detection units, determine the gear position of the shifter handle according to the shifter handle position information, determine the target gear position information of the electronic shifter based on at least the position change of the shifter handle when determining that the gear position of the shifter handle changes, and send the target gear position information to the gearbox controller.

[0008] In a second aspect, the present application provides a control method of an electronic gear shifter, for the electronic gear shifter as described above, the control method comprising:

[0009] obtaining the shifter handle position information generated by the X detection units;

[0010] determining the gear shifting position of the shifter handle according to the shifter handle position information, and determining the target gear position information of the electronic gear shifter based on at least the position change of the shifter handle when the gear shifting position of the shifter handle is determined to change; and

[0011] sending the target gear position information to the gearbox controller.

[0012] In a third aspect, the present application provides a vehicle comprising a gearbox and a gearbox controller, the vehicle further comprising the electronic gear shifter as described above, the gearbox controller being configured to obtain the target gear position information of the electronic gear shifter determined by the processor, and control the gearbox to shift gears according to the target gear position information.

[0013] Compared with the prior art, the present application has the beneficial effects that in the electronic gear shifter, the control method thereof, and the vehicle provided by the present application, the electronic gear shifter uses at least two detection units with different detection principles to detect the gear shifting position of the shifter handle, which can improve the accuracy of detecting the shifter handle position information of the shifter handle and the position change before and after the shifter handle switches the gear shifting position, and further improve the accuracy of the processor in determining the target gear position information of the electronic gear shifter based on at least the position change of the shifter handle, which is beneficial to reduce the failure probability of the electronic gear shifter.

[0014] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings described below are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0016] Figure 1 The connection schematic diagram between the electronic gear shifter, the gearbox controller and the gearbox provided by an embodiment of the present application;

[0017] Figure 2 is Figure 1Fig. 1 is a schematic diagram of the position change of the shifter handle in the electronic shifter in the present application;

[0018] Figure 3 Fig. 2 is a schematic diagram of the connection between the electronic shifter, the gearbox controller and the gearbox in another embodiment of the present application;

[0019] Figure 4 Fig. 3 is a flow chart of the control method of the electronic shifter in an embodiment of the present application;

[0020] Figure 5 Fig. 4 is a sub-flow chart of step S2 in Fig. 3; Figure 4

[0021] Figure 6 Fig. 5 is a flow chart of the cooperation between the first processor module and the second processor module.

[0022] Main figure mark explanation:

[0023] 1, gearbox; 2, gearbox controller; 3, electronic shifter; 10, shifter handle; 20, shifter mainboard; 21, processor; 211, first processor module; 212, second processor module; 22, communication unit; 221, first communication module; 222, second communication module; 30, detection unit; 31, first detection element; 311, permanent magnet; 312, grounding rod; 32, second detection element; 321, Hall sensor; 322, level signal generation component; 3221, contact sheet; 3222, I / O interface module; 33, signal separation module; 40, shifter base; L1, shift position; L2, shift position; L3, shift position; L4, shift position; L5, shift position. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0025] ​Furthermore, the terms "first", "second", and the like in the description of the application are used for distinguishing between similar objects and not necessarily for describing a sequential or chronological order. It is to be understood that the data used herein can be interchanged, mutatis mutandis, where appropriate, to permit the embodiments of the application described herein to be carried out in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprise", "comprising", "include", "including", and the like are intended to be open-ended, meaning that additional elements can be included, for example, a process, method, system, product or apparatus that comprises a list of steps or units can not necessarily be limited to those steps or units but can include additional steps or units not expressly listed or inherent to such process, method, product or apparatus.

[0026] It should be noted that the features of the embodiments of the application can be combined with each other, without conflict.

[0027] Referring to Figure 1 and Figure 2 , the embodiments of the application provide a vehicle, which comprises a gearbox 1, a gearbox controller 2 and an electronic gear shifter 3. The electronic gear shifter 3 can be operated in different working gears under the control of the driver and sends target gear information to the gearbox controller 2, so that the gearbox controller 2 controls the gearbox 1 to make corresponding gear shifting according to the target gear information of the electronic gear shifter 3. It should be noted that in the embodiments of the application, the gearbox 1 and the gearbox controller 2 can respectively adopt the gearbox and the gearbox controller in the prior art, and the specific structure and working principle thereof will not be described here.

[0028] As shown in Figure 1 and Figure 2 , in the embodiments of the application, the electronic gear shifter 3 comprises a gear shifter handle 10, X detection units 30 and a processor 21.

[0029] The gear shifter handle 10 can be switched between a plurality of gear shifting positions.

[0030] Each detection unit 30 is connected with the gear shifter handle 10 and is used for detecting the gear shifting position of the gear shifter handle 10 and generating corresponding gear shifter handle position information. Different detection units 30 are designed to be different in structure (i.e. heterogeneous) and generate the gear shifter handle position information according to different detection principles, and X≥2.

[0031] The processor 21 is electrically connected with the X detection units 30 and the gearbox controller 2, and is configured to acquire the shift knob position information generated by the X detection units 30, determine the shift position of the shift knob 10 according to the shift knob position information, and determine the target gear information of the electronic shift knob 3 based on at least the position change of the shift knob 10 when determining that the shift position of the shift knob 10 changes, and send the target gear information to the gearbox controller 2.

[0032] The electronic shift knob 3 provided by the application can improve the accuracy of detecting the position information of the shift knob 10 and the position change before and after the shift knob switches the shift position, and further improve the accuracy of the processor 21 in determining the target gear information of the electronic shift knob 3 based on at least the position change of the shift knob, which is beneficial to reduce the failure rate of the electronic shift knob.

[0033] In some embodiments, the position change of the shift knob 10 includes the change between the shift position of the shift knob 10 before the position change and the shift position of the shift knob 10 after the position change. The processor 21 is configured to determine the target gear information of the electronic shift knob 3 based on at least the position change of the shift knob 10 when determining that the shift position of the shift knob 10 changes, and specifically includes:

[0034] The processor 21 is configured to, when determining that the shift position of the shift knob 10 changes, obtain the position change information according to the shift positions of the shift knob 10 before and after the position change, and determine the target gear information of the electronic shift knob 3 based on the position change information of the shift knob 10 and the initial gear information of the electronic shift knob 3 before the position change of the shift knob 10.

[0035] It should be noted that the initial gear information changes with the working gear of the vehicle, and is used to indicate the working gear of the electronic shift knob 3 before the position change of the shift knob 10. For example, the gear of the electronic shift knob 3 before the position change of the shift knob 10 is R, and the initial gear information is R.

[0036] In some embodiments, each detection unit 30 includes a first detection element 31 arranged on the shift knob 10, and Y second detection elements 32 matched with the first detection element 31, each second detection element 32 is electrically connected with the processor 21, and Y≥1.

[0037] When the shifter handle 10 is switched to any of the shift positions, the first detection element 31 triggers the corresponding second detection element 32 to generate corresponding shifter handle position information.

[0038] Optionally, as shown in Figure 1 and Figure 2 Similar to the existing electronic shifter, the electronic shifter 3 also includes a shifter base 40 provided with a plurality of shift positions (for example, shift positions L1-L5 as shown in the figure), and the shifter handle 10 is movably mounted on the shifter base 40 and can be rotated relative to the shifter base 40 under the external force of the driver, so as to be switched between the plurality of shift positions, so as to realize the switching of the electronic shifter 3 between different working gears. Figure 2

[0039] The electronic shifter 3 also includes a shifter main board 20, and the processor 21 can be arranged on the shifter main board 20.

[0040] It should be noted that in the embodiments of the present application, in the detection units 30 with different structures, the detection principle of the first detection element 31 cooperating with the second detection element 32 of the detection unit 30 to generate the shifter handle position information is different. Therefore, in the vehicle provided by the embodiments of the present application, the electronic shifter 3 contained therein uses at least two detection units 30 with different detection principles to detect the position change of the shifter handle 10 when the shifter handle 10 is switched between the plurality of shift positions. Compared with the existing electronic shifter which only uses the detection method with the same detection principle to detect the position change of the shifter handle 10 when the shifter handle 10 is switched between the plurality of shift positions, the electronic shifter 3 of the present application can improve the accuracy of detecting the position change information of the shifter handle 10, and further improve the accuracy of the processor 21 in determining the target gear information of the electronic shifter 3 according to the position change information of the shifter handle 10 and the initial gear information of the electronic shifter 3 before the shifter handle 10 is switched, which is beneficial to reduce the failure probability of the electronic shifter 3.

[0041] It can be understood that in the embodiments of the present application, the first detection element 31 and the second detection element 32 can be combined with a plurality of existing devices, as long as they can detect the position change of the shifter handle 10 when the shifter handle 10 is switched between the plurality of shift positions.

[0042] Specifically, please refer to Figure 1 and Figure 2 ​In some embodiments, the first detection element 31 comprises a permanent magnet 311, and the second detection element 32 comprises a Hall sensor 321. When the gear shifter handle 10 is switched to different gear positions (for example, gear positions L1-L5 as shown in the figure), the relative positions of the permanent magnet 311 and the Hall sensor 321 are different, and thus the magnetic flux of the permanent magnet 311 detected by the Hall sensor 321 is different. The Hall sensor 321 can correspondingly generate different sensing signals (for example, PWM square wave signals with different duty cycles or analog voltage signals with different voltage values, etc.), which can be used as the gear shifter handle position information. In other words, when the gear shifter handle 10 is switched to different gear positions, the magnetic flux of the permanent magnet 311 detected by the Hall sensor 321 is different, and thus the gear shifter handle position information can be correspondingly generated. The magnetic flux of the permanent magnet 311 detected by the Hall sensor 321 when the gear shifter handle 10 is switched to different gear positions can be calibrated by using existing measuring instruments (for example, a duty cycle test device for PWM square waves or a multimeter for analog voltage signals). For example, a certain number (for example, 100) of sample electronic shifters 3 are taken, the gear shifter handle 10 is switched to different gear positions (for example, gear positions L1-L5 as shown in the figure), the values of the sensing signals of the Hall sensor 321 are measured respectively, and the data is counted after measurement. A range is drawn for the value of the sensing signal of the Hall sensor 321 corresponding to each gear position, which is I1, I2, I3, I4, and I5 respectively. The calibration of the value of the sensing signal of the Hall sensor 321 corresponding to the gear shifter handle 10 switched to different gear positions is completed. In this way, as long as the range into which the value of the sensing signal of the Hall sensor 321 (i.e., the gear shifter handle position information) falls can determine which gear position the gear shifter handle 10 is switched to. For example, if the value of the sensing signal of the Hall sensor 321 falls into the range of I4, it indicates that the gear shifter handle 10 is switched to gear position L4. That is, the gear position to which the gear shifter handle 10 is switched can be deduced according to the gear shifter handle position information. Figure 2 Figure 2

[0043] Please refer to Figure 1 and Figure 2 ​​In other embodiments, the first detection element 31 may be a grounding rod 312, and the corresponding second detection element 32 may be a level signal generation component 322. The level signal generation component 322 includes an I / O interface module 3222 and a plurality of contact pieces 3221 electrically connected to the I / O interface module 3222. The plurality of contact pieces 3221 correspond one-to-one with the plurality of shift positions. When the shift lever 10 is switched to different shift positions, the grounding rod 312 contacts different contact pieces 3221. The signal on the contact piece 3221 that contacts the grounding rod 312 becomes a low-level state, while the signal on the contact piece 3221 that does not contact the grounding rod 312 remains in a floating state (i.e., a high-level state). The I / O interface module 3222 detects different combinations of level signals of the plurality of contact pieces 3221. The combined level signals corresponding to the plurality of contact pieces 3221 can be used as the shift lever position information. That is, when the gear shift lever 10 is switched to different shift positions, the I / O interface module 3222 detects the combination of the level signals of the plurality of contact pieces 3221, which in turn can generate different gear shift lever position information. For example, when the gear shift lever 10 is switched to... Figure 2 When the gear shift position L1 is shown, the grounding rod 312 contacts the rightmost contact piece 3221 in the diagram. The I / O interface module 3222 detects the following level signals from the multiple contact pieces 3221 in sequence: high level signal, high level signal, high level signal, high level signal, and low level signal. The gear shift handle 10 is switched to... Figure 2 When the gear shift position L5 is shown, the grounding rod 312 is in contact with the leftmost contact piece 3221 in the diagram. The I / O interface module 3222 detects that the level signals of the multiple contact pieces 3221 are sequentially low, high, high, high, and high. It can be clearly seen that when the gear shift lever 10 is switched to different gear shift positions, the I / O interface module 3222 detects different combinations of level signals of the multiple contact pieces 3221, which correspond to different gear shift lever position information. Similarly, the gear shift position of the gear shift lever 10 can be deduced from the combination of level signals of the multiple contact pieces 3221 detected by the I / O interface module 3222 (i.e., the gear shift lever position information).

[0044] In some other embodiments, the first detecting element 31 can also be a reflective sheet, and the corresponding second detecting element 32 can be a light emitting receiver (e.g. an infrared light emitting receiver, a laser light emitting receiver). When the gear shifter handle 10 is switched to different gear positions, the relative positions of the reflective sheet and the light emitting receiver are different, and the light reflected by the reflective sheet detected by the light emitting receiver is also different, thus different gear shifter handle position information can be generated, and the gear position to which the gear shifter handle 10 is switched can also be deduced according to the gear shifter handle position information, which will not be described herein.

[0045] It can also be understood that in the embodiments of the present application, the number of the detecting units 30 can be two, three or more, which will not be limited. Preferably, in the embodiments of the present application, the number of the detecting units 30 is two. Figure 1 Figure 2 In the embodiments of the present application, the electronic gear shifter 3 can include two detecting units 30 with different detecting principles, so as to simplify the structure of the electronic gear shifter 3 and reduce the cost.

[0046] Specifically, as shown in Figure 1 Figure 2 In one of the embodiments of the present application, the first detecting element 31 and the second detecting element 32 of one of the two detecting units 30 of the electronic gear shifter 3 are respectively a permanent magnet 311 and a Hall sensor 321, and the first detecting element 31 and the second detecting element 32 of the other detecting unit 30 are respectively a grounding rod 312 and a level signal generating assembly 322.

[0047] More specifically, in the embodiments of the present application, the Hall sensor 321 and the I / O interface module 3222 of the level signal generating assembly 322 are arranged on the gear shifter main board 20, and the contact sheet 3221 of the level signal generating assembly 322 is arranged in the gear shifter base 40, so as to be in contact with the grounding rod 312. Optionally, the grounding rod 312 can be electrically connected to the ground wire of the gear shifter main board 20 by a wire, or can be electrically connected to other ground wire of the vehicle by a wire, which will not be limited. Figure 1 Figure 2 Preferably, in the embodiments of the present application, the Hall sensor 321 and the I / O interface module 3222 of the level signal generating assembly 322 are arranged on the gear shifter main board 20, and the contact sheet 3221 of the level signal generating assembly 322 is arranged in the gear shifter base 40, so as to be in contact with the grounding rod 312. Optionally, the grounding rod 312 can be electrically connected to the ground wire of the gear shifter main board 20 by a wire, or can be electrically connected to other ground wire of the vehicle by a wire, which will not be limited.

[0048] Preferably, in the embodiments of the present application, the Hall sensor 321 and the I / O interface module 3222 of the level signal generating assembly 322 are arranged on the gear shifter main board 20, and the contact sheet 3221 of the level signal generating assembly 322 is arranged in the gear shifter base 40, so as to be in contact with the grounding rod 312. Optionally, the grounding rod 312 can be electrically connected to the ground wire of the gear shifter main board 20 by a wire, or can be electrically connected to other ground wire of the vehicle by a wire, which will not be limited. Figure 1 Figure 2 ​​​​As shown, in one embodiment of the present invention, each detection unit 30 includes at least two second detection elements 32, and each second detection element 32 can be triggered by a corresponding first detection element 31 to generate the shift lever position information. Specifically, within the same detection unit 30, the first detection element 31 triggers any second detection element 32 to generate the shift lever position information using the same detection principle. Figure 1 and Figure 2 In one example, the second detection element 32 of one of the detection units 30 includes two Hall sensors 321 (i.e. Figure 1 Hall sensors A and B are shown. The second detection element 32 of the other detection unit 30 includes two rows of contact pieces 3221 (i.e., Hall sensor A and Hall sensor B are shown). Figure 2 The first row of contact pieces A1-A5 and the second row of contact pieces B1-B5 are shown, along with two I / O interface modules 3222 (i.e., Figure 2 (I / O interface module A and I / O interface module B are shown). In this embodiment, by providing at least two second detection elements 32 in each detection unit 30, each detection unit 30 can detect the position change of the gear shift lever 10 at least twice. This not only helps to further improve the accuracy of detection, but also ensures that the cost does not increase significantly.

[0049] In an embodiment of the present invention, the electronic shifter 3 can operate in N working gears, and the number of shift positions is M, where N ≥ 3, and N and M satisfy the relationship: M = 2N - 1. That is, in an embodiment of the present invention, in order to achieve the purpose of switching the working gears of the electronic shifter 3, the number of shift positions that the shifter handle 10 can switch to should be one less than twice the number of working gears of the electronic shifter 3. For example, when the electronic shifter 3 can operate in three working gears (R, N, and D), the number of shift positions should be five; as another example, when the electronic shifter 3 can operate in four working gears (R, N, D, and M), the number of shift positions should be seven.

[0050] Furthermore, in some embodiments, the plurality of shift positions are distributed at intervals along a preset direction. The plurality of shift positions includes a reset position and (2N-2) unsteady-state positions. The reset position has (N-1) unsteady-state positions on each side of the preset direction, and the (2N-2) unsteady-state positions are symmetrically distributed about the reset position. The shift lever 10 is initially located in the reset position. After shifting from the reset position to any of the unsteady-state positions and without external force, the shift lever 10 can return to the reset position.

[0051] In some embodiments, the position change information includes a gear change amount and a change direction of the gear shift position of the shift knob 10 before and after the position change, and the processor 21 determines that the initial gear position indicated by the initial gear position information is the target gear position obtained by adjusting the initial gear position in the corresponding change direction by the gear change amount, so as to obtain the target gear position information indicating the target gear position.

[0052] Specifically, the working process of the electronic gear shifter 3 provided by the embodiments of the present application will be described in detail below by taking the electronic gear shifter 3 capable of working in R, N and D three working gears, and the shift knob 10 capable of switching between L1-L5 five shift positions as an example. Figure 2

[0053] As shown in the table 1, the shift knob 10 is capable of switching between L1-L5 five shift positions, and the shift knob 10 is capable of switching between the shift positions L1-L5 in the preset direction, i.e. the front-to-back direction of the vehicle, so that the driver can control the shift knob 10 to switch between the shift positions L1-L5 by pulling the shift knob 10 forward or backward. Figure 2

[0054] Since the shift knob 10 can reset to the reset gear position from any non-steady gear position without external force, the shift knob 10 will automatically return to the reset gear position after each gear shifting operation in the actual gear shifting process, that is, the driver always pulls the shift knob 10 from the reset gear position to the (2N-2) non-steady gear positions to realize gear shifting. Figure 1 ​​In the illustrated embodiment, the operation of switching the shift knob 10 from the shift position L3 to the shift position L2 is referred to as "front 1", the operation of switching the shift knob 10 from the shift position L3 to the shift position L1 is referred to as "front 2", wherein "front" in "front 2" represents that the change direction of the shift position of the shift knob 10 before and after the position change is front, and "2" in "front 2" represents that the gear change amount of the shift position of the shift knob 10 before and after the position change is 2, and similarly, the operation of switching the shift knob 10 from the shift position L3 to the shift position L4 is referred to as "rear 1", and the operation of switching the shift knob 10 from the shift position L3 to the shift position L5 is referred to as "rear 2"; when the shift knob 10 is switched to the shift position L1 to the shift position L5, respectively, the shift knob position information generated by one detection unit 30 composed of the permanent magnet 311 and the Hall sensor 321 is defined as I1 to I5, respectively, and the shift knob position information generated by the other detection unit 30 composed of the grounding rod 312 and the level signal generating assembly 322 is defined as II1 to II5, respectively. Table 1 below is a logical comparison table for the processor 21 to determine the position change information of the shift knob 10 according to the obtained shift knob position information, and Table 2 below is a logical comparison table for the processor 21 to determine the target gear information of the electronic shift knob 3 according to the position change information of the shift knob 10 and the initial gear information of the electronic shift knob 3 before the shift knob 10 is switched.

[0055] Table 1

[0056]

[0057] Table 2

[0058]

[0059] It should be noted that the shift intention represented by the shift knob in Table 2 is the target gear information of the electronic shift knob 3 determined by the processor 21, and in addition, the corresponding logic is stored in the processor 21. In this way, the processor 21 can determine the position change information of the shift knob 10 according to the obtained shift knob position information, and further determine the target gear information of the electronic shift knob 3 according to the position change information of the shift knob 10 and the initial gear information of the electronic shift knob 3 before the shift knob 10 is switched.

[0060] Preferably, please refer to Figure 1and Table 1 and Table 2 above, in some embodiments of the present application, the processor 21 is configured to, when determining that the shift position of the shifter handle 10 changes, obtain position change information according to the shift positions of the shifter handle 10 before and after the position change, and determine the target gear position information of the electronic shifter 3 based on the position change information of the shifter handle 10 and the initial gear position information of the electronic shifter 3 before the position change of the shifter handle 10, specifically comprising:

[0061] The processor 21 is configured to obtain the shifter handle position information sent by each second detection element 32, and determine the position change information corresponding to each second detection element 32 according to the shifter handle position information, and determine a plurality of candidate gear position information based on the initial gear position information and the position change information corresponding to each second detection element 32, compare the plurality of candidate gear position information, and determine the target gear position information of the electronic shifter 3 from the plurality of candidate gear position information according to the comparison result.

[0062] It should be noted that when the shifter handle 10 is in a shift position, X×Y second detection elements 32 will output corresponding shifter handle position information to the processor 21 under the triggering of the corresponding first detection element 31, so that the processor 21 will receive X×Y shifter handle position information, and obtain X×Y position change information corresponding to the X×Y shifter handle position information, and obtain X×Y candidate gear position information corresponding to the X×Y second detection elements 32 based on the initial gear position information and the X×Y position change information. It is not difficult to understand that under ideal working conditions, when all the second detection elements 32 are fault-free and the detection speeds of all the second detection elements 32 are the same, the X×Y candidate gear position information should be the same, and when the X×Y candidate gear position information is not completely the same, it indicates that at least one of the X×Y second detection elements 32 is faulty, or the electronic shifter 3 is in a transition state during the shift position switching process.

[0063] Further, in some embodiments, the processor 21 is specifically configured to, when the candidate gear position information corresponding to at least two second detection elements 32 with different detection principles among all the second detection elements 32 is the same gear position information, determine the same gear position information as the target gear position information.

[0064] Exemplarily, in the case of X=2 and Y=2, the second detection elements 32 are respectively a first second detection element 32a and a second second detection element 32b, and the first second detection element 32a and the second second detection element 32b are respectively configured to detect the position change information of the shifter handle 10 in the first direction and the second direction. Figure 2For example, when at least three of the four second detection elements 32 (I / O interface module A, I / O interface module B, Hall sensor A, and Hall sensor B) have the same candidate gear information, or when the candidate gear information corresponding to one of the second detection elements 32 in I / O interface module A and I / O interface module B is the same as the candidate gear information corresponding to one of the second detection elements 32 in Hall sensor A and Hall sensor B, it can be determined that the candidate gear information corresponding to at least two heterogeneous second detection elements 32 is the same, and thus the same gear information can be determined as the target gear information.

[0065] In some embodiments, the processor 21 is specifically used to determine that the electronic gear shifter 3 has a fault and control the issuance of a first alarm message when at least two candidate gear information are the same gear information among the plurality of candidate gear information, and the detection principle of all second detection elements 32 corresponding to the same gear information is the same, and when the duration of the at least two candidate gear information being the same gear information is greater than a first preset time.

[0066] The first alarm message is used to prompt the driver to control the gear shift lever 10 to switch between the multiple gear shift positions in a preset order in order to detect faults in the X detection units 30.

[0067] In some embodiments, the processor 21 is specifically used to determine that the electronic gear shifter 3 is faulty and to control the issuance of a first alarm message when the multiple candidate gear information is different from each other and the duration for which the multiple candidate gear information remains different from each other is greater than a second preset time.

[0068] For example, with Figure 3 For example, when the candidate gear information corresponding to I / O interface module A and I / O interface module B is the same gear information, and is different from the candidate gear information corresponding to Hall sensor A and Hall sensor B, or when the candidate gear information corresponding to Hall sensor A and Hall sensor B is the same gear information, and is different from the candidate gear information corresponding to I / O interface module A and I / O interface module B, or when the candidate gear information corresponding to I / O interface module A, I / O interface module B, Hall sensor A and Hall sensor B are different from each other, then it is determined that the electronic gear shifter 3 is faulty.

[0069] Therefore, when the candidate gear information corresponding to the heterogeneous second detection elements 32 is the same, the same gear information is determined as the target gear information, and when the candidate gear information corresponding to the heterogeneous second detection elements 32 is different, it is determined that the electronic gear shifter 3 has a fault and the first warning information is sent in time to prompt the driver that the electronic gear shifter 3 needs to be repaired, which can improve the driving safety of the vehicle.

[0070] For example, the first preset time and the second preset time can be any reasonable time within 40 ms to 60 ms, for example, 50 ms, and the two can be the same or different, which is not limited. It should be noted that in any of the above determination processes, if the corresponding determination condition does not exceed the preset time, it means that the electronic gear shifter 3 is in a transition state during the gear position switching process, which is not a fault, and the driver can continue to drive the vehicle.

[0071] In some embodiments, the processor 21 is further configured to control the electronic gear shifter 3 to enter a fault detection mode after sending the first warning information. The processor 21 is configured to determine whether there is a trusted second detection element 32 in all the second detection elements 32 according to the position change information corresponding to the shifter handle position information sent by each second detection element 32 in the fault detection mode and the actual position change information of the shifter handle 10 when switching between the plurality of gear positions.

[0072] In some embodiments, the processor 21 is further configured to control the electronic gear shifter 3 to send a third warning information when the trusted second detection element 32 is determined to exist in all the second detection elements 32 in the fault detection mode. The third warning information is used to prompt that the vehicle can continue to drive but the electronic gear shifter 3 needs to be repaired as soon as possible.

[0073] Therefore, after receiving the third warning information, the driver can continue to drive the vehicle to the destination without staying at the original place to wait for rescue, which is an emergency treatment measure that can save the waiting time of the driver and improve the driving experience under the condition of ensuring safety.

[0074] Further, in some embodiments, the first warning information is specifically used to prompt the driver to control the shifter handle 10 to switch between the plurality of gear positions in a first preset order within a third preset time to perform fault detection on the X detection units 30.

[0075] In the process that the shifter handle 10 is switched between the plurality of shift positions in the first preset order, the processor 21 is configured to determine that the at least one second detection element 32 is a recognized second detection element 32 when the position change information corresponding to the shifter handle position information sent by the at least one second detection element 32 is consistent with the actual position change information of the shifter handle 10, and determine whether the trusted second detection element 32 exists in the recognized second detection element 32.

[0076] Further, in an embodiment, the processor 21 is configured to determine the recognized second detection element 32 as the trusted second detection element 32.

[0077] In another embodiment, the processor 21 is further configured to control to send second warning information when it is determined that the at least one second detection element 32 is a recognized second detection element 32. The second warning information is used to prompt the driver to control the shifter handle 10 to be switched between the plurality of shift positions in a second preset order within a fourth preset time.

[0078] In the process that the shifter handle 10 is switched between the plurality of shift positions in the second preset order, the processor 21 is further configured to determine that the recognized second detection element 32 is a trusted second detection element 32 when the position change information corresponding to the shifter handle position information sent by any of the recognized second detection elements 32 is consistent with the actual position change information of the shifter handle 10, and control to send the third warning information. The second preset order is different from the first preset order.

[0079] In this way, the X detection units 30 are respectively subjected to fault detection according to the first preset order and the second preset order to determine the trusted second detection element 32, which can improve the accuracy of the verification result and is safer.

[0080] In an embodiment, in the process that the shifter handle 10 is switched between the plurality of shift positions in the first preset order, the processor 21 is further configured to control to send fourth warning information when the position change information corresponding to the shifter handle position information sent by any of the second detection elements 32 is inconsistent with the actual position change information of the shifter handle 10.

[0081] Further, during the process that the shifter handle 10 is switched between the plurality of shift positions in the second preset sequence, the processor 21 is further configured to control a fourth warning information to be sent out when the position change information corresponding to the shifter handle position information sent by any of the identified second detection elements 32 is inconsistent with the actual position change information of the shifter handle 10.

[0082] The fourth warning information is used to prompt that the electronic shifter 3 needs to be maintained. In this way, when the fourth warning information is received by the driver, it indicates that there is no trusted second detection element 32, and the driver cannot continue to drive the vehicle.

[0083] For example, in the example of the first preset sequence, Figure 3 In the example of the first preset sequence, the shifter handle 10 is switched between the plurality of shift positions in the first preset sequence, which is not limited to being controlled to be switched from the shift position L3 to the shift position L2 and then to the shift position L1 for a plurality of times (for example, 5 times) in succession. Similarly, in the example of the second preset sequence, the shifter handle 10 is switched between the plurality of shift positions in the second preset sequence, which is not limited to being controlled to be switched from the shift position L3 to the shift position L4 and then to the shift position L5 for a plurality of times (for example, 5 times) in succession. Of course, in other embodiments, the first preset sequence and the second preset sequence can be the same, and the number of repetitions can be 3 times, 4 times, or any other number, which is not limited.

[0084] The third preset time and the fourth preset time can be any reasonable time within 30s to 60s, for example, 50s, and can be the same or different, which is not limited.

[0085] In some embodiments, the shifter main board 20 further comprises a communication unit 22 electrically connected to the processor 21, and the communication unit 22 is configured to realize the communication connection between the processor 21 and the transmission controller 2. The processor 21 sends the determined target gear position information of the electronic shifter 3 to the transmission controller 2 through the communication unit 22. Of course, in other embodiments, the processor 21 can also be integrated with a communication module, and the communication connection with the transmission controller 2 can be realized through the communication module, which is not limited.

[0086] Please refer to Figure 3 In another embodiment of the present application, the processor 21 can include a first processor module 211 and a second processor module 212, and each of the second detection elements 32 is electrically connected to the first processor module 211 and the second processor module 212.

[0087] The priority of the first processor module 211 is higher than the priority of the second processor module 212. The first processor module 211 is configured to determine the target gear information of the electronic gear shifter 3 according to the obtained shifter handle position information and send the target gear information to the transmission controller 2 when the electronic gear shifter 3 is in normal working condition. The second processor module 212 is configured to determine the target gear information of the electronic gear shifter 3 according to the obtained shifter handle position information and send the target gear information to the transmission controller 2 when the first processor module 211 fails.

[0088] The working principles of the first processor module 211 and the second processor module 212 can refer to the foregoing related content, and details are not described herein.

[0089] It can be understood that, in the example of the electronic gear shifter 3, Figure 4 In the example of the electronic gear shifter 3, the processor 21 is composed of the first processor module 211 and the second processor module 212, and the first processor module 211 and the second processor module 212 can respectively determine the target gear information of the electronic gear shifter 3 according to the priority and send the target gear information, that is, the redundancy of the processor module is realized. When one of the processor modules fails, the other processor module can complete the corresponding function, so that the normal working of the electronic gear shifter 3 is ensured, and the failure probability of the electronic gear shifter 3 is further reduced.

[0090] In some embodiments, the first processor module 211 and the second processor module 212 are different types of processor modules, so that the two processor modules can be prevented from failing simultaneously due to the same reason, and the failure probability of the electronic gear shifter 3 is further reduced.

[0091] In some embodiments, each detection unit 30 further comprises Y signal separation modules 33 corresponding to the Y second detection elements 32. Each signal separation module 33 is electrically connected to the first processor module 211, the second processor module 212, and the corresponding second detection element 32. The second detection element 32 sends the generated shifter handle position information to the first processor module 211 and the second processor module 212 through the signal separation module 33.

[0092] For example, as shown in FIG. 1, Figure 1As shown, the signal separation module 33 includes a signal separation module A and a signal separation module B corresponding to the Hall sensor A and the Hall sensor B respectively, both of which can be a one-to-two module. The one-to-two module can include a first logic AND gate and a second logic AND gate. The first input end of the first logic AND gate and the first input end of the second logic AND gate are both electrically connected to the corresponding second detection element 32. The second input end of the first logic AND gate and the second input end of the second logic AND gate both receive a high level. The output end of the first logic AND gate is electrically connected to the first processor module 211, and the output end of the second logic AND gate is electrically connected to the second processor module 212.

[0093] In this way, the two-way shifter handle position information output by the signal separation module 33 is consistent with the original shifter handle position information and does not affect each other, which helps to improve the accuracy of the position change information of the shifter handle 10 determined by the corresponding processor module according to the obtained shifter handle position information.

[0094] In some embodiments, the signal separation module 33 corresponding to each I / O interface module 3222 is integrated in the I / O interface module 3222 to simplify the overall structure. Of course, in other embodiments, each I / O interface module 3222 can also be connected with an independent signal separation module 33.

[0095] In some embodiments, the communication unit 22 of the shifter main board 20 includes a first communication module 221 and a second communication module 222. The first communication module 221 is electrically connected to the first processor module 211, and is used to realize the communication connection between the first processor module 211 and the transmission controller 2. The first processor module 211 sends the target gear position information of the electronic shifter 3 determined by the first processor module 211 to the transmission controller 2 through the first communication module 221. The second communication module 222 is electrically connected to the second processor module 212, and is used to realize the communication connection between the second processor module 212 and the transmission controller 2. The second processor module 212 sends the target gear position information of the electronic shifter 3 determined by the second processor module 212 to the transmission controller 2 through the second communication module 222. Similarly, each processor module is connected to the transmission controller 2 through an independent communication module, which can avoid mutual influence when the two processor modules send the target gear position information of the electronic shifter 3 to the transmission controller 2.

[0096] It should be noted that in the embodiments of the present application, the signal separation module 33, the first processor module 211, the second processor module 212, the first communication module 221 and the second communication module 222 can each adopt a corresponding device such as a signal separation module, a processor module and a communication module in the prior art, and the specific structure and working principle thereof will not be described here.

[0097] Please refer to Figure 2 , based on the same inventive concept, the embodiments of the present application also provide a control method of an electronic gear shifter, applied to the electronic gear shifter 3 as described in any of the above embodiments. Please combine Figure 4 、 Figure 1 and Figure 2 , the control method comprises the following steps:

[0098] Step S1, obtaining the gear shifter handle position information generated by X detection units;

[0099] Among them, different detection units generate the gear shifter handle position information according to different detection principles, and X≥2;

[0100] Step S2, determining the gear shifting position of the gear shifter handle according to the gear shifter handle position information, and determining the target gear position information of the electronic gear shifter based on at least the position change of the gear shifter handle when the gear shifting position of the gear shifter handle changes; and,

[0101] Step S3, sending the target gear position information to the gearbox controller 2.

[0102] The control method of the electronic gear shifter provided by the embodiments of the present application uses at least two detection units 30 with different detection principles to detect the gear shifting position of the gear shifter handle 10, which can improve the accuracy of detecting the handle position information of the gear shifter handle 10 and the position change before and after the handle switches the gear shifting position, and further improve the accuracy of the processor 21 in determining the target gear position information of the electronic gear shifter 3 based on at least the position change of the gear shifter handle, which is beneficial to reduce the failure probability of the electronic gear shifter.

[0103] As described above, in some embodiments, the first detection element 31 and the second detection element 32 can adopt a combination of existing devices, such as a combination of a permanent magnet and a Hall sensor, a combination of a grounding rod, a contact sheet and an I / O interface module, a combination of a reflective sheet and a light emitting receiver, etc., as long as the position change of the gear shifter handle 10 when switching between the plurality of gear shifting positions can be detected. The number of detection units 30 can be two, three and other numbers greater than three, which is not limited. Preferably, in Figure 1 andFigure 2 In the example of FIG. 1, the electronic gear shifter 3 comprises two detection units 30 with different detection principles, so as to simplify the structure of the electronic gear shifter 3 and reduce the cost. In the two detection units 30 comprised by the electronic gear shifter 3, the first detection element 31 and the second detection element 32 of one of the detection units 30 are respectively a permanent magnet 311 and a Hall sensor 321, and the first detection element 31 and the second detection element 32 of the other detection unit 30 are respectively a ground rod 312 and a level signal generating component 322. For more details, please refer to the foregoing relevant description, which will not be repeated here.

[0104] As described above, in some embodiments, each detection unit 30 comprises at least two second detection elements 32, each of which can cooperate with the first detection element 31 of the detection unit 30 to generate the gear shifter handle position information. In the same detection unit 30, the detection principle of the first detection element 31 and any second detection element 32 cooperating to generate the gear shifter handle position information is the same. Specifically, in the example of FIG. 1, the second detection element 32 of one of the detection units 30 comprises two Hall sensors 321 (i.e., Hall sensor A and Hall sensor B shown in FIG. 1), and the second detection element 32 of the other detection unit 30 comprises two rows of contact pads 3221 (i.e., the first row of contact pads A1-A5 and the second row of contact pads B1-B5 shown in FIG. 1) and two I / O interface modules 3222 (i.e., I / O interface module A and I / O interface module B shown in FIG. 1). Figure 1 Figure 2 In the example of FIG. 1, the second detection element 32 of one of the detection units 30 comprises two Hall sensors 321 (i.e., Hall sensor A and Hall sensor B shown in FIG. 1), and the second detection element 32 of the other detection unit 30 comprises two rows of contact pads 3221 (i.e., the first row of contact pads A1-A5 and the second row of contact pads B1-B5 shown in FIG. 1) and two I / O interface modules 3222 (i.e., I / O interface module A and I / O interface module B shown in FIG. 1). Figure 1 In the example of FIG. 1, the second detection element 32 of one of the detection units 30 comprises two Hall sensors 321 (i.e., Hall sensor A and Hall sensor B shown in FIG. 1), and the second detection element 32 of the other detection unit 30 comprises two rows of contact pads 3221 (i.e., the first row of contact pads A1-A5 and the second row of contact pads B1-B5 shown in FIG. 1) and two I / O interface modules 3222 (i.e., I / O interface module A and I / O interface module B shown in FIG. 1). Figure 5 In the example of FIG. 1, the second detection element 32 of one of the detection units 30 comprises two Hall sensors 321 (i.e., Hall sensor A and Hall sensor B shown in FIG. 1), and the second detection element 32 of the other detection unit 30 comprises two rows of contact pads 3221 (i.e., the first row of contact pads A1-A5 and the second row of contact pads B1-B5 shown in FIG. 1) and two I / O interface modules 3222 (i.e., I / O interface module A and I / O interface module B shown in FIG. 1). Figure 3 In the example of FIG. 1, the second detection element 32 of one of the detection units 30 comprises two Hall sensors 321 (i.e., Hall sensor A and Hall sensor B shown in FIG. 1), and the second detection element 32 of the other detection unit 30 comprises two rows of contact pads 3221 (i.e., the first row of contact pads A1-A5 and the second row of contact pads B1-B5 shown in FIG. 1) and two I / O interface modules 3222 (i.e., I / O interface module A and I / O interface module B shown in FIG. 1).

[0105] Further, please refer to FIG. 2, in some embodiments, the step S2 specifically comprises: Figure 6

[0106] Step S21, obtaining the gear shifter handle position information sent by each second detection element 32, and determining the position change information corresponding to each second detection element 32 according to the gear shifter handle position information;

[0107] Step S22, determining a plurality of candidate gear position information based on the initial gear position information and the position change information corresponding to each second detection element 32; and, ​​

[0108] Step S23, comparing the plurality of candidate gear information, and determining the target gear information of the electronic gear shifter 3 from the plurality of candidate gear information according to the comparison result.

[0109] Further, in some embodiments, the step S23 specifically comprises at least one of steps S231-S233, specifically as follows:

[0110] Step S231, when the candidate gear information corresponding to at least two second detection elements 32 with different detection principles in all the second detection elements 32 is the same gear information, determining the same gear information as the target gear information.

[0111] Step S232, when at least two candidate gear information in the plurality of candidate gear information is the same gear information, the detection principle of all the second detection elements 32 corresponding to the candidate gear information is the same, and the duration that the at least two candidate gear information maintains the same gear information is greater than a first preset time, determining that the electronic gear shifter 3 has a fault and controlling to issue a first warning information.

[0112] Step S233, when the plurality of candidate gear information is different from each other, and the duration that the plurality of candidate gear information maintains different from each other is greater than a second preset time, determining that the electronic gear shifter 3 has a fault and controlling to issue a first warning information.

[0113] In some embodiments, the first warning information is used to prompt the driver to control the shifter handle 10 to switch between the plurality of gear positions in a preset order to perform fault detection on the X detection units 30. The control method further comprises:

[0114] Step S4, after controlling to issue the first warning information, controlling to enter a fault detection mode, and determining whether there is a trusted second detection element 32 with normal detection result in all the second detection elements 32 according to the position change information corresponding to the shifter handle position information sent by each second detection element 32 in the fault detection mode and the actual position change information of the shifter handle 10 when switching between the plurality of gear positions.

[0115] Further, in some embodiments, the first warning information is specifically used to prompt the driver to control the shifter handle 10 to switch between the plurality of gear positions in a first preset order within a third preset time to perform fault detection on the X detection units 30. The step S4 specifically comprises:

[0116] Step S41, during the process that the shifter handle 10 is switched between the plurality of shift positions in the first preset order, the processor 21 is configured to determine that the at least one second detection element 32 is a recognized second detection element 32 when the position change information corresponding to the shifter handle position information sent by the at least one second detection element 32 is consistent with the actual position change information of the shifter handle 10, and determine whether the trusted second detection element 32 exists in the recognized second detection element 32.

[0117] Further, in an embodiment, after the step S41 is performed, the control method further comprises:

[0118] Step S42, determining the recognized second detection element 32 as the trusted second detection element 32.

[0119] In another embodiment, the control method further comprises:

[0120] Step S43, when the at least one second detection element 32 is determined as the recognized second detection element 32, controlling to send a second warning information;

[0121] The second warning information is used to prompt the driver to control the shifter handle 10 to be switched between the plurality of shift positions in a second preset order within a fourth preset time.

[0122] Step S44, during the process that the shifter handle 10 is switched between the plurality of shift positions in the second preset order, the processor 21 is further configured to determine that the recognized second detection element 32 is a trusted second detection element 32 when the position change information corresponding to the shifter handle position information sent by any of the recognized second detection elements 32 is consistent with the actual position change information of the shifter handle 10, and control to send a third warning information.

[0123] The second preset order is different from the first preset order.

[0124] Step S45, during the process that the shifter handle 10 is switched between the plurality of shift positions in the first preset order, the processor 21 is further configured to control to send a fourth warning information when the position change information corresponding to the shifter handle position information sent by any of the second detection elements 32 is inconsistent with the actual position change information of the shifter handle 10; and,

[0125] Step S46, during the process that the shifter handle 10 is switched between the plurality of shift positions in the second preset sequence, the processor 21 is further configured to control to send a fourth warning information when the position change information corresponding to the shifter handle position information sent by any of the identified second detection elements 32 is inconsistent with the actual position change information of the shifter handle 10.

[0126] As described above, in some embodiments, the processor 21 can include a first processor module 211 and a second processor module 212, and each of the second detection elements 32 is electrically connected to the first processor module 211 and the second processor module 212, respectively.

[0127] The priority of the first processor module 211 is higher than that of the second processor module 212, and the first processor module 211 is configured to determine the target gear information of the electronic shifter 3 according to the obtained shifter handle position information and send the target gear information to the transmission controller 2 when the first processor module 211 is in normal working state, and the second processor module 212 is configured to determine the target gear information of the electronic shifter 3 according to the obtained shifter handle position information and send the target gear information to the transmission controller 2 when the first processor module 211 is in fault state. The working principles of the first processor module 211 and the second processor module 212 can be referred to the foregoing related content, and will not be described here.

[0128] Please refer to ​ and ​ In some embodiments, the second processor module 212 is communicatively connected to the first processor module 211, and the second processor module 212 is configured to determine the target gear information of the electronic shifter 3 according to the obtained shifter handle position information and send the target gear information to the transmission controller 2 when the first processor module 211 is in fault state. Specifically, the control method further includes:

[0129] Step S51, sending heartbeat information to the second processor module 212 by the first processor module 211 every fifth preset time;

[0130] Step S52, determining whether the received heartbeat information is interrupted by the second processor module 212;

[0131] If the second processor module 212 determines that the heartbeat information is interrupted, step S53 is performed, and if the second processor module 212 determines that the heartbeat information is not interrupted, step S54 is performed.

[0132] Step S53, determining the target gear information of the electronic gear shifter 3 according to the acquired shifter handle position information by the second processor module 212 and sending to the gearbox controller 2;

[0133] Step S54, judging whether the received heartbeat information is abnormal by the second processor module 212;

[0134] If the second processor module 212 judges that the received heartbeat information is not abnormal, step S55 is executed, and if the second processor module 212 judges that the heartbeat information is abnormal, step S56 is executed;

[0135] Step S55, continuing to determine the target gear information of the electronic gear shifter 3 according to the acquired shifter handle position information by the first processor module 211 and sending to the gearbox controller 2; and,

[0136] Step S56, judging whether the target gear information of the electronic gear shifter 3 sent by the first processor module 211 can be normally received by the second processor module 212, and if the result is yes, the first processor module 211 sends the target gear information of the electronic gear shifter 3 to the gearbox controller 2, and if the result is no, determining the target gear information of the electronic gear shifter 3 according to the acquired shifter handle position information by the second processor module 212 and sending to the gearbox controller 2.

[0137] In some embodiments, the first processor module 211 and the second processor module 212 are different types of processor modules, so that the two can be avoided from failing at the same time due to the same reason, which helps to further reduce the failure probability of the electronic gear shifter 3.

[0138] It should be noted that in the embodiments of the present application, the control method of the electronic gear shifter provided by the present application corresponds to the electronic gear shifter 3 described above, and more detailed introduction can be referred to the various embodiments of the electronic gear shifter 3 described above, which will not be repeated here.

[0139] In the description of the present application, the description of the terms "embodiment", "specific embodiment", "example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0140] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely divergences of the principles and application of the present application and that numerous modifications, changes, substitutions, and alterations can be made thereto without departing from the spirit and scope of the present application, which is defined by the following claims and their equivalents.

Claims

1. An electronic gear shifter, characterized in that, include: The gear shift lever allows switching between multiple gear shift positions; X detection units, each connected to the gear shift lever, are used to detect the shift position of the gear shift lever and generate corresponding gear shift lever position information; wherein different detection units generate the gear shift lever position information according to different detection principles, and X≥2; and The processor is electrically connected to the X detection units and the transmission controller. The processor is used to acquire the shift lever position information generated by the X detection units, determine the shift position of the shift lever based on the shift lever position information, and when it is determined that the shift position of the shift lever has changed, determine the target gear information of the electronic shifter based at least on the change in the position of the shift lever, and send the target gear information to the transmission controller. Each of the detection units includes a first detection element disposed on the gear shift handle and Y second detection elements cooperating with the first detection element, each of the second detection elements being electrically connected to the processor, wherein Y≥1; When the gear shift lever is switched to any of the gear shift positions, the first detection element triggers the corresponding second detection element to generate the corresponding gear shift lever position information; The processor is used to acquire the shift lever position information sent by each of the second detection elements, determine the position change information corresponding to each of the second detection elements based on the shift lever position information, and determine the corresponding candidate gear information based on the initial gear information and the position change information corresponding to each of the second detection elements to obtain multiple candidate gear information. The processor is configured to determine that the electronic gear shifter is faulty and control the issuance of a first alarm message when at least two candidate gear information are the same gear information among the plurality of candidate gear information, and the detection principle of all second detection elements corresponding to the same gear information is the same, and the duration of the at least two candidate gear information being the same gear information is greater than a first preset time.

2. The electronic gear shifter as described in claim 1, characterized in that, The processor is used to obtain position change information based on the shifting position of the shift lever before and after the position change when it is determined that the shifting position of the shift lever has changed, and to determine the target gear information of the electronic shifter based on the position change information of the shift lever and the initial gear information of the electronic shifter before the position change of the shift lever.

3. The electronic gear shifter as described in claim 2, characterized in that, The position change information includes the amount and direction of gear change of the shift lever before and after the position change. Based on the amount and direction of gear change of the shift lever before and after the position change, the processor determines the target gear after adjusting the initial gear indicated by the initial gear information of the electronic shifter in the corresponding direction of change.

4. The electronic gear shifter as described in claim 1, characterized in that, Each of the detection units includes at least two second detection elements, and each second detection element is used to generate the shift lever position information by being triggered by a corresponding first detection element; wherein, in the same detection unit, the first detection element triggers any of the second detection elements to generate the shift lever position information using the same detection principle.

5. The electronic gear shifter as described in claim 1, characterized in that, The processor is used to compare the multiple candidate gear information and determine the target gear information of the electronic gear shifter from the multiple candidate gear information based on the comparison results.

6. The electronic gear shifter as described in claim 5, characterized in that, The processor is configured to determine the same gear information as the target gear information when at least two second detection elements with different detection principles have the same gear information.

7. The electronic gear shifter as described in claim 5, characterized in that, The processor is used to determine that the electronic gear shifter is faulty and to control the issuance of a first alarm message when the multiple candidate gear information is different from each other and the duration of the multiple candidate gear information remaining different from each other is greater than a second preset time.

8. The electronic gear shifter as described in claim 6, characterized in that, The first alarm message is used to prompt the driver to control the gear shift lever to switch between the multiple shift positions in a preset order in order to perform fault detection on the X detection units, and the processor is used to control to enter the fault detection mode after the first alarm message is issued. The processor is used to determine whether there is a credible second detection element with a normal detection result among all the second detection elements based on the position change information corresponding to the shift lever position information sent by each of the second detection elements in the fault detection mode and the actual position change information of the shift lever when switching between the multiple shift positions.

9. The electronic gear shifter as described in claim 8, characterized in that, The first alarm information is specifically used to prompt the driver to control the gear shift lever to switch between the multiple gear shift positions in a first preset order within a third preset time, so as to perform fault detection on the X detection units; During the process of the shift lever switching between the plurality of shift positions in the first preset sequence, the processor is configured to determine that the at least one second detection element is an identified second detection element when the position change information corresponding to the shift lever position information sent by at least one second detection element is consistent with the actual position change information of the shift lever, and to determine whether the credible second detection element exists among the identified second detection elements.

10. The electronic gear shifter as described in claim 9, characterized in that, The processor is further configured to, when determining that the at least one second detection element is an identified second detection element, control the issuance of a second alarm message, the second alarm message being used to prompt the driver to control the gear shift lever to switch between the plurality of gear shift positions in a second preset order within a fourth preset time. During the process of the shift lever switching between the plurality of shift positions in the second preset sequence, the processor is further configured to determine that the identified second detection element is a reliable second detection element and control the issuance of a third alarm message when the position change information corresponding to the shift lever position information sent by any of the identified second detection elements is consistent with the actual position change information of the shift lever; wherein the second preset sequence is different from the first preset sequence.

11. The electronic gear shifter as described in claim 9, characterized in that, During the process of the gear shift lever switching between the plurality of shift positions in the first preset order, the processor is further configured to control the issuance of a fourth alarm message when the position change information obtained corresponding to the position information of the gear shift lever sent by any of the second detection elements is inconsistent with the actual position change information of the gear shift lever.

12. The electronic gear shifter as described in claim 10, characterized in that, During the process of the shift lever switching between the plurality of shift positions in the second preset order, the processor is further configured to control the issuance of a fourth alarm message when the position change information corresponding to the shift lever position information sent by any of the identified second detection elements is inconsistent with the actual position change information of the shift lever.

13. The electronic shifter as described in claim 1, characterized in that, The first detection element includes a permanent magnet, and the second detection element includes a Hall sensor. The relative position of the permanent magnet and the Hall sensor is different when the gear shift lever is switched to different shift positions, and the magnetic flux detected by the Hall sensor is different. Alternatively, the first detection element includes a grounding rod, and the second detection element includes an I / O interface module and a plurality of contact pieces electrically connected to the I / O interface module. The plurality of contact pieces correspond one-to-one with the plurality of shift positions. The grounding rod contacts different contact pieces when the shift lever is switched to different shift positions. The I / O interface module detects different combinations of level signals from the plurality of contact pieces. Alternatively, the first detection element includes a reflector, and the second detection element includes a light emitter and receiver. The relative position of the reflector and the light emitter and receiver changes when the gear shift lever is switched to different shift positions, and the light emitter and receiver detects different light reflected by the reflector.

14. The electronic gear shifter as described in claim 1, characterized in that, The electronic shifter can operate in N working gears, and the number of shift positions is M, where N≥3, and N and M satisfy the relationship: M=2N-1.

15. The electronic shifter as described in claim 14, characterized in that, The plurality of shift positions are distributed at intervals along a preset direction. The plurality of shift positions include a reset position and 2N-2 unstable positions. The reset position has N-1 unstable positions on each side of the preset direction. The 2N-2 unstable positions are symmetrically distributed about the reset position. The gear shift lever is initially located in the reset position. After the gear shift lever is switched from the reset position to any of the unsteady positions and is not subjected to external force, it can be reset to the reset position.

16. The electronic shifter as claimed in any one of claims 4 to 12, characterized in that, The processor includes a first processor module and a second processor module, and each of the second detection elements is electrically connected to both the first processor module and the second processor module. The first processor module has a higher priority than the second processor module. The first processor module is used to determine the target gear information of the electronic gear shifter based on the acquired gear shift lever position information and send it to the transmission controller when the first processor module malfunctions.

17. The electronic shifter as described in claim 16, characterized in that, The first processor module and the second processor module are different types of processor modules.

18. The electronic shifter as described in claim 16, characterized in that, Each of the detection units further includes Y signal separation modules corresponding one-to-one with the Y second detection elements. Each signal separation module is electrically connected to the first processor module, the second processor module, and the corresponding second detection element. The second detection element sends the generated shift lever position information to the first processor module and the second processor module respectively through the signal separation module.

19. A control method for an electronic gear shifter, used in the electronic gear shifter as described in any one of claims 1 to 18, characterized in that, The control method includes: Obtain the shift lever position information generated by X detection units; The shift position of the shift lever is determined based on the shift lever position information, and when it is determined that the shift position of the shift lever has changed, the target gear information of the electronic shifter is determined at least based on the change in the position of the shift lever; and The target gear information is sent to the transmission controller; The step of determining the shift position of the shift lever based on the shift lever position information, and determining the target gear information of the electronic shifter based at least on the position change of the shift lever when the shift position of the shift lever is determined to have changed, includes: The position information of the gear shift lever sent by each of the second detection elements is obtained, and the position change information corresponding to each of the second detection elements is determined based on the position information of the gear shift lever. Based on the initial gear information and the position change information obtained by each of the second detection elements, the corresponding candidate gear information is determined to obtain multiple candidate gear information; The multiple candidate gear information is compared, and the target gear information of the electronic gear shifter is determined from the multiple candidate gear information based on the comparison results; The step of comparing the multiple candidate gear information and determining the target gear information of the electronic gear shifter from the multiple candidate gear information based on the comparison results includes: If at least two candidate gear information are the same gear information among the plurality of candidate gear information, and the detection principle of all second detection elements corresponding to the same gear information is the same, and the duration of the at least two candidate gear information being the same gear information is greater than a first preset time, it is determined that the electronic gear shifter has a fault and a first alarm message is issued.

20. A vehicle, comprising a transmission and a transmission controller, characterized in that, The vehicle further includes an electronic gear shifter as described in any one of claims 1 to 18, wherein the transmission controller is configured to acquire target gear information of the electronic gear shifter determined by the processor, and control the transmission to shift gears according to the target gear information.

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