Vehicle standby gear switching method and system

Abstract

The present invention discloses a vehicle standby gear switching method and system, including: judging whether a target vehicle meets a first preset condition for entering a temporary gear mode; if the target vehicle meets the first preset condition for entering a temporary gear mode at the same time, controlling itself to actively enter the temporary gear mode, and judging whether the brake state is in a stepped state and whether a gear switching signal is received; if the brake state is in a stepped state and the gear switching signal is received, obtaining a current gear signal, and switching the current gear signal according to a preset gear switching rule. The present invention avoids the problem that the vehicle cannot switch gears due to the electronic shifter losing the ability to send a gear signal normally in the traditional method, and can realize the switching of gears.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic gear shifters for automobiles, and in particular to a method and system for switching standby gears of a vehicle. Background Art

[0002] With the development of automobile electrification and intelligence, electronic shifters are widely used in the development of new energy vehicle models and high-tech automobile technologies such as autonomous driving. Electronic shifters feedback the driver's gear requirements through CAN signals, hard-wire signals, etc., and their usage rate in the market is increasing.

[0003] There are various types of electronic shifters. The most common ones on the market are monostable joystick shifters and multistable knob shifters. Both types of electronic shifters use Hall sensors to sense the driver's gear requirements and send corresponding position signals.

[0004] However, there are problems with this mode of operation. When the electronic shifter's gear signal-related hardware failures occur, such as the gear Hall sensor, gear magnet, etc., the electronic shifter will lose the ability to send the gear position required by the driver, causing the vehicle to be unable to switch gears, affecting the driver's driving safety. Summary of the invention

[0005] In view of this, an embodiment of the present invention provides a vehicle standby gear switching method and system to solve the problem in the prior art that the vehicle cannot switch gears due to the electronic shifter losing the ability to send gear signals normally.

[0006] The vehicle standby gear switching method proposed in the present invention is applied to the TCU of the vehicle, and the method includes:

[0007] Determine whether the target vehicle meets a first preset condition for entering a temporary gear mode, wherein the first preset condition includes that the brake state is in a stepped state, the gear signal of the electronic gear shifter in a normal mode is a P gear signal or an N gear signal or an invalid value or a fault value, and a temporary gear signal sent by the electronic gear shifter is received;

[0008] If the target vehicle satisfies the first of the three above-mentioned conditions for entering the temporary gear mode, the target vehicle is controlled to actively enter the temporary gear mode, and it is determined again whether the brake state is in the depressed state, and whether a gear switching signal is received, wherein the gear switching signal is triggered by the driver manually pressing the M gear or P gear button;

[0009] If the brake state is in the depressed state and the gear switching signal is received, the current gear signal is acquired and the current gear signal is switched according to a preset gear switching rule.

[0010] Further, the step of judging whether the target vehicle meets a first preset condition for entering a temporary gear mode, wherein the first preset condition includes that the brake state is in a stepped state, the gear signal of the electronic gear shifter in a normal mode is a P gear signal or an N gear signal or an invalid value or a fault value, and receiving a temporary gear signal sent by the electronic gear shifter includes:

[0011] monitoring a brake status signal of the target vehicle at a first preset time interval to determine whether the target vehicle is in a brake-pressed state according to the brake status signal;

[0012] If the target vehicle is in a stepped-on state, actively receiving a gear signal of an electronic gear shifter in a normal mode within a second preset time, and determining whether the gear signal of the target vehicle is a P gear signal or an N gear signal or an invalid value or a fault value;

[0013] If the gear signal of the target vehicle is a P gear signal or an N gear signal or an invalid value or a fault value, the electronic gear shifter is actively monitored within the third preset time to see whether it sends a temporary gear signal. The temporary gear signal is triggered after the driver manually and continuously presses the M gear or P gear button for a fourth preset time.

[0014] Furthermore, if the brake state is in the depressed state and the gear switching signal is received, the step of obtaining the current gear signal and switching the current gear signal according to a preset gear switching rule includes:

[0015] When it is monitored that the brake state is in the depressed state and the gear switching signal is received, the current gear signal of the target vehicle is obtained, and the gear switching signal is responded to, and the gear is controlled to switch the gear in the order of the preset gear switching rules. The order of the preset gear switching rules is P gear, R gear, N gear, and D gear.

[0016] Furthermore, if the brake state is in the depressed state and the gear switching signal is received, the current gear signal is obtained, and the current gear signal is switched according to a preset gear switching rule, and the method further includes:

[0017] Determine whether the target vehicle meets the second preset condition for exiting the temporary gear mode, the second preset condition includes the vehicle being powered off, the gear signal of the electronic gear shifter in the normal mode changing, the M gear or P gear button of the electronic gear shifter being pressed for 5 seconds, and the change is triggered when the driver actively switches the gear shifter, including the gear switching from P, N, invalid value, fault value to P, R, N, D;

[0018] If the target vehicle simultaneously satisfies the second preset condition for exiting the temporary gear mode, the target vehicle controls itself to actively exit the temporary gear mode.

[0019] Furthermore, if the target vehicle satisfies the above three first preset conditions for entering the temporary gear mode at the same time, then after controlling itself to actively enter the temporary gear mode, the method further includes:

[0020] The TCU sends a text reminder, which is: the temporary gear mode has been entered.

[0021] According to the vehicle standby gear switching system proposed by the present invention, which is applied to the TCU of a vehicle, the vehicle standby gear switching system comprises:

[0022] An entry judgment module is used to judge whether the target vehicle meets the first preset condition for entering the temporary gear mode, wherein the first preset condition includes that the brake state is in the stepped state, the gear signal of the electronic gear shifter in the normal mode is a P gear signal or an N gear signal or an invalid value or a fault value, and a temporary gear signal sent by the electronic gear shifter is received;

[0023] A module for entering a temporary gear mode: if the target vehicle satisfies the first of the three preset conditions for entering a temporary gear mode, the target vehicle is controlled to actively enter the temporary gear mode, and determines again whether the brake state is in a stepped state, and whether a gear switching signal is received, wherein the gear switching signal is triggered by the driver manually pressing the M gear or P gear button;

[0024] Gear switching module: used to obtain the current gear signal if the brake state is in the depressed state and the gear switching signal is received, and switch the current gear signal according to the preset gear switching rule.

[0025] Furthermore, the entry judgment module specifically includes:

[0026] A first monitoring unit: used for monitoring a brake state signal of a target vehicle at a first preset time interval, so as to determine whether the target vehicle is in a brake-pressed state according to the brake state signal;

[0027] The second monitoring unit is used for actively receiving the gear signal of the electronic shifter in the normal mode within a second preset time if the target vehicle is in the stepped-on state, and determining whether the gear signal of the target vehicle is a P gear signal or an N gear signal or an invalid value or a fault value;

[0028] The third monitoring unit is used to actively monitor whether the electronic shifter sends a temporary gear signal within a third preset time if the gear signal of the target vehicle is a P gear signal or an N gear signal or an invalid value or a fault value. The temporary gear signal is triggered after the driver manually and continuously presses the M gear or P gear button for a fourth preset time.

[0029] Furthermore, the gear switching module specifically includes:

[0030] When it is monitored that the brake state is in the depressed state and the gear switching signal is received, the current gear signal of the target vehicle is obtained, and the gear switching signal is responded to, and the gear is controlled to switch the gear in the order of the preset gear switching rules. The order of the preset gear switching rules is P gear, R gear, N gear, and D gear.

[0031] Furthermore, the switching system further includes:

[0032] Exit judgment module: used to judge whether the target vehicle meets the second preset condition for exiting the temporary gear mode, the second preset condition includes the vehicle being powered off, the gear signal of the electronic gear shifter in the normal mode changing, the M gear or P gear button of the electronic gear shifter being pressed for 5 seconds, and the change is triggered when the driver actively switches the gear shifter, including the gear switching from P, N, invalid value, fault value to P, R, N, D;

[0033] The module for exiting the temporary gear mode is used to control the target vehicle to actively exit the temporary gear mode if the target vehicle simultaneously meets the second preset condition for exiting the temporary gear mode.

[0034] Further, the module for entering the temporary gear mode includes:

[0035] Text reminder unit: used for TCU to send text reminders, the text reminder is: entering the temporary gear mode.

[0036] A vehicle standby gear switching method and system provided by the present invention has the following beneficial effects: by judging whether a target vehicle meets a first preset condition for entering a temporary gear mode, if the target vehicle meets the first preset condition for entering a temporary gear mode, the vehicle is controlled to actively enter the temporary gear mode, and judge whether the brake state is in a stepped-on state and whether a gear switching signal is received, the gear switching signal is triggered by the driver manually pressing the M gear or P gear button, if the brake state is in a stepped-on state and the gear switching signal is received, the current gear signal is obtained, and the current gear signal is switched according to a preset gear switching rule, the switching order of the preset gear switching rule is P, R, N, D, and the temporary gear mode is exited after use is ended or the electronic shifter can be used normally. The present invention does not require the use of electronic shifter gear signal related hardware such as gear Hall sensors and gear magnets, thereby avoiding the problem that the electronic shifter loses the ability to send gear signals normally when hardware fails, resulting in the inability of the vehicle to switch gears, and gear switching can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 It is a flow chart of a vehicle standby gear switching method of the present invention;

[0039] Figure 2 A strategy diagram of a vehicle standby gear switching method entering a temporary gear mode according to the present invention;

[0040] Figure 3 A strategy diagram for switching gears in a vehicle standby gear switching method according to the present invention;

[0041] Figure 4 The present invention is a structural block diagram of a vehicle standby gear switching system. DETAILED DESCRIPTION

[0042] In order to facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are provided in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0043] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0045] See also Figures 1 to 3 , which is a vehicle standby gear switching method provided by the first embodiment of the present invention, and the vehicle standby gear switching method comprises steps S100 to S300, wherein:

[0046] Step S100: Determine whether the target vehicle meets the first preset condition for entering the temporary gear mode, the first preset condition includes that the brake state is in the depressed state, the gear signal of the electronic shifter in the normal mode is a P gear signal or an N gear signal or an invalid value or a fault value, and a temporary gear signal sent by the electronic shifter is received.

[0047] Specifically, the brake state signal of the target vehicle is monitored every first preset time to determine whether the target vehicle is in a stepped-on state according to the brake state signal. The brake state signal is divided into a stepped-on state and a not-stepped-on state. The purpose of setting the first preset time is to monitor the state of the target vehicle in real time to quickly determine whether the target vehicle needs to enter a temporary gear mode. In this embodiment, since the first preset time is related to the relevant configuration of the target vehicle itself, the manufacturer can set it according to the performance of the target vehicle and actual needs, and it is not described in detail in this embodiment;

[0048] If the target vehicle is in a stepped-on state, the gear signal of the electronic gear shifter in a normal mode is actively received within a second preset time, and it is determined whether the gear signal of the target vehicle is a P gear signal or an N gear signal or an invalid value or a fault value. The purpose of setting the second preset time is to monitor the gear signal of the electronic gear shifter in a normal mode in real time, so as to quickly determine whether the target vehicle meets the conditions for entering a temporary gear mode;

[0049] It should be noted that the gear signals of the electronic shifter in normal mode include P gear, R gear, N gear, D gear, M gear, invalid value, and fault value. Among them, P gear is the parking gear, R gear is the reverse gear, N gear is the neutral gear, D gear is the forward gear, and M gear means that the gear can be adjusted manually. When the electronic shifter cannot work normally, it can only send P gear, N gear, invalid value, and fault value.

[0050] If the gear signal of the target vehicle is a P gear signal or an N gear signal or an invalid value or a fault value, the electronic gear shifter is actively monitored within the third preset time to see whether it sends a temporary gear signal. The temporary gear signal is initially not sent by default and is triggered by the driver manually pressing the M gear or P gear button continuously for the fourth preset time. In the present embodiment, the fourth preset time is 5 seconds.

[0051] It can be understood that using the brake status signal, the gear signal of the electronic shifter in normal mode, and the temporary gear signal sent by the electronic shifter as conditions for entering the temporary gear mode can avoid the use of related hardware such as the electronic shifter gear Hall sensor, gear magnet, and other gear signals, thereby avoiding the problem of the vehicle being unable to switch gears due to the electronic shifter losing the ability to send gear signals normally when a hardware failure occurs.

[0052] Step S200: If the target vehicle simultaneously satisfies the first three preset conditions for entering the temporary gear mode, the target vehicle controls itself to actively enter the temporary gear mode, and again determines whether the brake state is in the depressed state, and whether a gear switching signal is received. The gear switching signal is triggered by the driver manually pressing the M gear or P gear button.

[0053] It should be noted that after entering the temporary gear mode, it is necessary to monitor in real time whether the gear switching signal is received. In actual driving, the brakes need to be stepped on before each gear change. Therefore, in this embodiment, it is also necessary to monitor the brake status signal when monitoring whether the gear switching signal is received. Only when the brake status signal is in the stepped state and the gear switching signal is received can the gear switching signal be responded to.

[0054] It should be noted that after entering the temporary gear mode, the TCU sends a text reminder to remind the driver that the temporary gear is currently in use. The text reminder is: temporary gear mode has been entered; in the temporary gear mode, the vehicle's display screen will always display text reminder information to remind the driver. When the driver exits the temporary gear mode, the text reminder information on the display screen will disappear.

[0055] Step S300: If the brake state is in the depressed state and the gear switching signal is received, the current gear signal is obtained, and the current gear signal is switched according to a preset gear switching rule.

[0056] Specifically, when it is monitored that the brake state is in the depressed state and the gear switching signal is received, the current gear signal of the target vehicle is obtained, the gear switching signal is responded to, and the gear is controlled to switch the gear in the order of preset gear switching rules. The order of the preset gear switching rules is P gear, R gear, N gear, and D gear. The order of the preset gear switching rules is generally arranged in the order of P gear, R gear, N gear, and D gear, which conforms to the driver's gear switching habits.

[0057] The switching method further includes:

[0058] Determine whether the target vehicle meets the second preset condition for exiting the temporary gear mode, the second preset condition includes the vehicle being powered off, the gear signal of the electronic gear shifter in the normal mode changing, the M gear or P gear button of the electronic gear shifter being pressed for 5 seconds, and the change is triggered when the driver actively switches the gear shifter, including the gear switching from P, N, invalid value, fault value to P, R, N, D;

[0059] It can be understood that the function of the temporary gear mode of the electronic shifter is that the driver actively chooses to enter the temporary gear mode when the normal gear cannot be switched. When the gear signal of the electronic shifter in the normal mode changes from P, N, invalid value, fault value to the gear switch between P, R, N, and D, it means that the electronic shifter can be used normally, and the temporary gear mode is exited at this time. When the driver actively presses the M gear or P gear button of the electronic shifter for 5 seconds, it means that the driver wants to exit the temporary gear mode, and the temporary gear mode can also be exited at this time.

[0060] If the target vehicle simultaneously satisfies the second preset condition for exiting the temporary gear mode, the target vehicle controls itself to actively exit the temporary gear mode.

[0061] See also Figure 4 , Figure 4 1 is a structural block diagram of a vehicle standby gear switching system provided by an embodiment of the present invention. In this embodiment, the vehicle standby gear switching system includes modules for executing Figure 1 For details, please refer to the steps in the corresponding embodiment. Figure 1 as well as Figure 1 For the convenience of explanation, only the parts related to this embodiment are shown. Figure 4 , a vehicle standby gear switching system: enter the judgment module 10, enter the temporary gear mode module 11, and the gear switching module 12, wherein:

[0062] Enter the judgment module 10: used to judge whether the target vehicle meets the first preset condition for entering the temporary gear mode, the first preset condition includes that the brake state is in the stepped state, the gear signal of the electronic gear shifter in the normal mode is the P gear signal or the N gear signal or an invalid value or a fault value, and a temporary gear signal sent by the electronic gear shifter is received.

[0063] Furthermore, the entry determination module 10 includes:

[0064] The first monitoring unit is used to monitor the brake status signal of the target vehicle at intervals of a first preset time, so as to determine whether the target vehicle is in a stepped-on state according to the brake status signal. The brake status signal is divided into a stepped-on state and a non-stepped-on state. The purpose of setting the first preset time is to monitor the state of the target vehicle in real time, so as to quickly determine whether the target vehicle needs to enter a temporary gear mode. In this embodiment, since the first preset time is related to the relevant configuration of the target vehicle itself, the manufacturer can set it according to the performance of the target vehicle and actual needs, and it is not described in detail in this embodiment;

[0065] The second monitoring unit is used for actively receiving the gear signal of the electronic gear shifter in the normal mode within the second preset time if the target vehicle is in the stepped state, and judging whether the gear signal of the target vehicle is a P gear signal or an N gear signal or an invalid value or a fault value. The purpose of setting the second preset time is to monitor the gear signal of the electronic gear shifter in the normal mode in real time, so as to quickly judge whether the target vehicle meets the conditions for entering the temporary gear mode;

[0066] It should be noted that the gear signals of the electronic shifter in normal mode include P gear, R gear, N gear, D gear, M gear, invalid value, and fault value. Among them, P gear is the parking gear, R gear is the reverse gear, N gear is the neutral gear, D gear is the forward gear, and M gear means that the gear can be adjusted manually. When the electronic shifter cannot work normally, it can only send P gear, N gear, invalid value, and fault value.

[0067] The third monitoring unit is used to actively monitor whether the electronic shifter sends a temporary gear signal within a third preset time if the gear signal of the target vehicle is a P gear signal or an N gear signal or an invalid value or a fault value. The temporary gear signal is initially not sent by default and is triggered by the driver manually pressing the M gear or P gear button continuously for a fourth preset time. In this embodiment, the fourth preset time is 5 seconds.

[0068] It can be understood that using the brake status signal, the gear signal of the electronic shifter in normal mode, and the temporary gear signal sent by the electronic shifter as conditions for entering the temporary gear mode can avoid the use of related hardware such as the electronic shifter gear Hall sensor, gear magnet, and other gear signals, thereby avoiding the problem of the vehicle being unable to switch gears due to the electronic shifter losing the ability to send gear signals normally when a hardware failure occurs.

[0069] The module 11 for entering the temporary gear mode is used to control the target vehicle to actively enter the temporary gear mode if the target vehicle simultaneously satisfies the first three preset conditions for entering the temporary gear mode, and to determine again whether the brake state is in the depressed state, and whether a gear switching signal is received, wherein the gear switching signal is triggered by the driver manually pressing the M gear or P gear button.

[0070] It should be noted that after entering the temporary gear mode, it is necessary to monitor in real time whether the gear switching signal is received. In actual driving, the brakes need to be stepped on before each gear change. Therefore, in this embodiment, it is also necessary to monitor the brake status signal when monitoring whether the gear switching signal is received. Only when the brake status signal is in the stepped state and the gear switching signal is received can the gear switching signal be responded to.

[0071] Furthermore, the module 11 for entering the temporary gear mode further includes:

[0072] Text reminder unit: used for TCU to send text reminders to remind the driver that the temporary gear is currently in use. The text reminder is: the temporary gear mode has been entered; in the temporary gear mode, the vehicle's display screen will always display text reminder information to remind the driver. When the driver exits the temporary gear mode, the text reminder information on the display screen will disappear.

[0073] The gear switching module 12 is used to obtain the current gear signal if the brake state is in the depressed state and the gear switching signal is received, and switch the current gear signal according to a preset gear switching rule.

[0074] Specifically, when it is monitored that the brake state is in the depressed state and the gear switching signal is received, the current gear signal of the target vehicle is obtained, the gear switching signal is responded to, and the gear is controlled to switch the gear in the order of preset gear switching rules. The order of the preset gear switching rules is P gear, R gear, N gear, and D gear. The order of the preset gear switching rules is generally arranged in the order of P gear, R gear, N gear, and D gear, which conforms to the driver's gear switching habits.

[0075] The switching system further comprises:

[0076] Exit judgment module: used to judge whether the target vehicle meets the second preset condition for exiting the temporary gear mode, the second preset condition includes the vehicle being powered off, the gear signal of the electronic gear shifter in the normal mode changing, the M gear or P gear button of the electronic gear shifter being pressed for 5 seconds, and the change is triggered when the driver actively switches the gear shifter, including the gear switching from P, N, invalid value, fault value to P, R, N, D;

[0077] It can be understood that the function of the temporary gear mode of the electronic shifter is that the driver actively chooses to enter the temporary gear mode when the normal gear cannot be switched. When the gear signal of the electronic shifter in the normal mode changes from P, N, invalid value, fault value to the gear switch between P, R, N, and D, it means that the electronic shifter can be used normally, and the temporary gear mode is exited at this time. When the driver actively presses the M gear or P gear button of the electronic shifter for 5 seconds, it means that the driver wants to exit the temporary gear mode, and the temporary gear mode can also be exited at this time.

[0078] The module for exiting the temporary gear mode is used to control the target vehicle to actively exit the temporary gear mode if the target vehicle simultaneously meets the second preset condition for exiting the temporary gear mode.

[0079] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0080] Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Mentioning "embodiment" in this article means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present embodiment application. The appearance of this phrase in various positions in the specification is not necessarily the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It can be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0081] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A vehicle standby gear switching method, applied to a TCU of a vehicle, the method comprising the following steps: Determine whether the target vehicle meets a first preset condition for entering a temporary gear mode, wherein the first preset condition includes that the brake state is in a stepped state, the gear signal of the electronic gear shifter in a normal mode is a P gear signal or an N gear signal or an invalid value or a fault value, and a temporary gear signal sent by the electronic gear shifter is received; Monitoring a brake status signal of the target vehicle at a first preset time interval to determine whether the target vehicle is in a stepped-on state according to the brake status signal, wherein the brake status signal is divided into a stepped-on state and a non-stepped-on state; If the target vehicle is in a stepped-on state, actively receiving a gear signal of an electronic gear shifter in a normal mode within a second preset time, and determining whether the gear signal of the target vehicle is a P gear signal or an N gear signal or an invalid value or a fault value; If the gear signal of the target vehicle is a P gear signal or an N gear signal or an invalid value or a fault value, actively monitor whether the electronic gear shifter sends a temporary gear signal within a third preset time. The temporary gear signal is initially defaulted to not sending a signal and is triggered by the driver manually pressing the M gear or P gear button for a fourth preset time. If the target vehicle satisfies the first of the three above-mentioned conditions for entering the temporary gear mode, the target vehicle is controlled to actively enter the temporary gear mode, and it is determined again whether the brake state is in the depressed state, and whether a gear switching signal is received, wherein the gear switching signal is triggered by the driver manually pressing the M gear or P gear button; After entering the temporary gear mode, it is necessary to monitor in real time whether the gear switching signal is received. Only when the brake status signal is in the pressed state and the gear switching signal is received can the gear switching signal be responded to; If the brake state is in the depressed state and the gear switching signal is received, the current gear signal is acquired and the current gear signal is switched according to a preset gear switching rule.

2. A vehicle standby gear switching method according to claim 1, characterized in that: If the brake state is in the depressed state and the gear switching signal is received, the step of obtaining the current gear signal and switching the current gear signal according to a preset gear switching rule comprises: When it is monitored that the brake state is in the depressed state and the gear switching signal is received, the current gear signal of the target vehicle is obtained, and the gear switching signal is responded to, and the gear is controlled to switch the gear in the order of the preset gear switching rules. The order of the preset gear switching rules is P gear, R gear, N gear, and D gear.

3. A vehicle standby gear switching method according to claim 2, characterized in that: If the brake state is in the depressed state and the gear switching signal is received, the current gear signal is obtained, and the current gear signal is switched according to a preset gear switching rule, and the following further comprises: Determine whether the target vehicle meets the second preset condition for exiting the temporary gear mode, the second preset condition includes the vehicle being powered off, the gear signal of the electronic gear shifter in the normal mode changing, the M gear or P gear button of the electronic gear shifter being pressed for 5 seconds, and the change is triggered when the driver actively switches the gear shifter, including the gear switching from P, N, invalid value, fault value to P, R, N, D; If the target vehicle simultaneously satisfies the second preset condition for exiting the temporary gear mode, the target vehicle controls itself to actively exit the temporary gear mode.

4. A vehicle standby gear switching method according to claim 1, characterized in that: If the target vehicle satisfies the above three first preset conditions for entering the temporary gear mode at the same time, then controlling itself to actively enter the temporary gear mode further includes: The TCU sends a text reminder, which is: the temporary gear mode has been entered.

5. A vehicle standby gear switching system, applied to a vehicle TCU, characterized in that: The vehicle standby gear switching system comprises: An entry judgment module is used to judge whether the target vehicle meets the first preset condition for entering the temporary gear mode, wherein the first preset condition includes that the brake state is in the stepped state, the gear signal of the electronic gear shifter in the normal mode is a P gear signal or an N gear signal or an invalid value or a fault value, and a temporary gear signal sent by the electronic gear shifter is received; Monitoring a brake status signal of the target vehicle at a first preset time interval to determine whether the target vehicle is in a stepped-on state according to the brake status signal, wherein the brake status signal is divided into a stepped-on state and a non-stepped-on state; If the target vehicle is in a stepped-on state, actively receiving a gear signal of an electronic gear shifter in a normal mode within a second preset time, and determining whether the gear signal of the target vehicle is a P gear signal or an N gear signal or an invalid value or a fault value; If the gear signal of the target vehicle is a P gear signal or an N gear signal or an invalid value or a fault value, actively monitor whether the electronic gear shifter sends a temporary gear signal within a third preset time. The temporary gear signal is initially defaulted to not sending a signal and is triggered by the driver manually pressing the M gear or P gear button for a fourth preset time. A module for entering a temporary gear mode: if the target vehicle satisfies the first of the three preset conditions for entering a temporary gear mode, the target vehicle is controlled to actively enter the temporary gear mode, and determines again whether the brake state is in a stepped state, and whether a gear switching signal is received, wherein the gear switching signal is triggered by the driver manually pressing the M gear or P gear button; After entering the temporary gear mode, it is necessary to monitor in real time whether the gear switching signal is received. Only when the brake status signal is in the pressed state and the gear switching signal is received can the gear switching signal be responded to; Gear switching module: used to obtain the current gear signal if the brake state is in the depressed state and the gear switching signal is received, and switch the current gear signal according to the preset gear switching rule.

6. A vehicle standby gear switching system according to claim 5, characterized in that: The gear switching module specifically includes: When it is monitored that the brake state is in the depressed state and the gear switching signal is received, the current gear signal of the target vehicle is obtained, and the gear switching signal is responded to, and the gear is controlled to switch the gear in the order of the preset gear switching rules. The order of the preset gear switching rules is P gear, R gear, N gear, and D gear.

7. A vehicle standby gear switching system according to claim 6, characterized in that: The switching system further comprises: Exit judgment module: used to judge whether the target vehicle meets the second preset condition for exiting the temporary gear mode, the second preset condition includes the vehicle being powered off, the gear signal of the electronic gear shifter in the normal mode changing, the M gear or P gear button of the electronic gear shifter being pressed for 5 seconds, and the change is triggered when the driver actively switches the gear shifter, including the gear switching from P, N, invalid value, fault value to P, R, N, D; The module for exiting the temporary gear mode is used to control the target vehicle to actively exit the temporary gear mode if the target vehicle simultaneously meets the second preset condition for exiting the temporary gear mode.

8. The vehicle standby gear switching system according to claim 5, characterized in that: The module for entering the temporary gear mode comprises: Text reminder unit: used for TCU to send text reminders, the text reminder is: entering the temporary gear mode.

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