Neutral control method, device, storage medium and vehicle of automatic transmission

Abstract

This invention discloses a method, device, storage medium, and vehicle for neutral gear control of an automatic transmission. The method includes: acquiring the initial execution state of neutral gear of the automatic transmission of the target vehicle, wherein the initial execution state is one of multiple execution states of neutral gear, and different execution states are used to characterize the execution result of neutral gear; acquiring vehicle information of the target vehicle in real time, wherein the vehicle information is used to characterize the vehicle state of the target vehicle at the current moment; determining whether the target vehicle meets the neutral gear switching condition based on the vehicle information, wherein the neutral gear switching condition is used to determine the target execution state of neutral gear, and the target execution state is one of different execution states; and switching the neutral gear from the initial execution state to the target execution state in response to the target vehicle meeting the neutral gear switching condition. This invention solves the technical problem of poor smoothness leading to a poor user experience in the neutral gear control method of automatic transmissions provided by related technologies.

Description

Technical Field

[0001] This invention relates to the field of automotive control, and more specifically, to a method, apparatus, storage medium, and vehicle for controlling the neutral gear of an automatic transmission. Background Technology

[0002] Automatic transmissions in vehicles can automatically shift gears based on vehicle speed and engine speed, thus reducing the difficulty of driving. The Transmission Control Unit (TCU) is the controller of the automatic transmission and can be used to control neutral (N gear). That is, when the vehicle meets certain neutral shifting conditions, the TCU will control the automatic transmission to automatically engage neutral to avoid overheating of the transmission fluid and improve the driving experience during vehicle movement and stopping.

[0003] However, the existing neutral control method has poor smoothness when switching between different execution states of neutral. That is, during the process of the vehicle going from driving to stopping and then back to driving, the existing neutral control method has difficulty in achieving smooth switching between different execution states of neutral, resulting in a poor driving experience for the driver.

[0004] As can be seen from the above analysis, there is currently no effective solution to the problem of poor smoothness and poor user experience caused by the neutral control method of the automatic transmission provided by the above-mentioned related technologies. Summary of the Invention

[0005] This invention provides a method, apparatus, storage medium, and vehicle for neutral gear control of an automatic transmission, to at least solve the technical problem of poor user experience caused by the poor smoothness of the neutral gear control method for automatic transmissions provided in the related art.

[0006] According to one aspect of the present invention, a neutral gear control method for a vehicle automatic transmission is provided, comprising:

[0007] The system collects the initial execution state of the neutral gear of the automatic transmission of the target vehicle under monitoring. The initial execution state is one of multiple execution states of neutral, and different execution states are used to characterize the execution result of neutral. The system also collects vehicle information in real time, which characterizes the vehicle state of the target vehicle at the current moment. Based on the vehicle information, the system determines whether the target vehicle meets the neutral shifting condition. The neutral shifting condition is used to determine the target execution state of neutral, which is one of different execution states. In response to the target vehicle meeting the neutral shifting condition, the system switches the neutral gear from the initial execution state to the target execution state.

[0008] Optionally, the vehicle information includes at least one of the following: vehicle speed, wheel speed, automatic parking status, accelerator signal, and execution operation of the actuator corresponding to the automatic transmission. The automatic parking status includes one of the following: active status and disengaged status. The accelerator signal includes one of the following: acceleration signal and deceleration signal.

[0009] Optionally, the neutral shifting conditions include: the initial execution state is a first execution state, where both vehicle speed and wheel speed are above a speed threshold; the first execution state is when the automatic transmission has not entered the neutral control state; wherein, in response to the target vehicle meeting the neutral shifting conditions, switching neutral from the initial execution state to the target execution state includes: in response to the target vehicle meeting the neutral shifting conditions, switching neutral from the first execution state to a second execution state, wherein the second execution state is when the automatic transmission begins to enter the neutral control state; and in response to the target vehicle not meeting the neutral shifting conditions, maintaining neutral in the first execution state.

[0010] Optionally, the neutral shift condition includes: the initial execution state is the second execution state, and the automatic parking operation state is active within a first preset time. In response to the target vehicle meeting the neutral shift condition, switching neutral from the initial execution state to the target execution state includes: in response to the target vehicle meeting the neutral shift condition, switching neutral from the second execution state to the third execution state, wherein the third execution state is when the automatic transmission completes and maintains neutral control; and in response to the target vehicle not meeting the neutral shift condition, maintaining neutral in the second execution state.

[0011] Optionally, the neutral control method for the vehicle's automatic transmission further includes: in response to the target vehicle not meeting the neutral shifting condition, determining whether the automatic parking operation state is in the exit state within a second preset time; in response to the automatic parking operation state being in the exit state within the second preset time, switching the neutral gear from the second execution state to the first execution state.

[0012] Optionally, the neutral shifting conditions include: the initial execution state is the third execution state, the accelerator signal is an acceleration signal, and the automatic parking operation state is an exit state. In response to the target vehicle meeting the neutral shifting conditions, switching neutral from the initial execution state to the target execution state includes: in response to the target vehicle meeting the neutral shifting conditions, switching neutral from the third execution state to the fourth execution state, wherein the fourth execution state is when the automatic transmission begins to exit the neutral control state; and in response to the target vehicle not meeting the neutral shifting conditions, maintaining neutral in the third execution state.

[0013] Optionally, the neutral shifting condition includes: the initial execution state is the fourth execution state, and the execution operation of the actuator is a preset execution operation. The preset execution operation is used to indicate that the actuator is in a completed state. In response to the target vehicle meeting the neutral shifting condition, switching the neutral gear from the initial execution state to the target execution state includes: switching the neutral gear from the fourth execution state to the first execution state in response to the target vehicle meeting the neutral shifting condition; and keeping the neutral gear in the fourth execution state in response to the target vehicle not meeting the neutral shifting condition.

[0014] According to another aspect of the present invention, a neutral gear control device for a vehicle automatic transmission is also provided, comprising:

[0015] The acquisition module is used to collect the initial execution state of the neutral gear of the automatic transmission of the target vehicle to be monitored. The initial execution state is one of multiple execution states of neutral gear, and different execution states are used to characterize the execution result of neutral gear. The acquisition module is used to collect the vehicle information of the target vehicle in real time. The vehicle information is used to characterize the vehicle state of the target vehicle at the current moment. The judgment module is used to determine whether the target vehicle meets the neutral gear switching condition based on the vehicle information. The neutral gear switching condition is used to determine the target execution state of neutral gear, and the target execution state is one of different execution states. The processing module is used to switch the neutral gear from the initial execution state to the target execution state in response to the target vehicle meeting the neutral gear switching condition.

[0016] Optionally, the above-mentioned acquisition module is also used for: vehicle information including at least one of the following: vehicle speed, wheel speed, automatic parking operation status, accelerator signal, and execution operation of the actuator corresponding to the automatic transmission, wherein the automatic parking operation status includes one of the following: active state and deactivated state, and the accelerator signal includes one of the following: acceleration signal and deceleration signal.

[0017] Optionally, the above processing module is further configured to: The neutral shift condition includes: the initial execution state is a first execution state, where both vehicle speed and wheel speed are above a speed threshold; the first execution state is when the automatic transmission has not entered the neutral control state; wherein, in response to the target vehicle meeting the neutral shift condition, switching neutral from the initial execution state to the target execution state includes: in response to the target vehicle meeting the neutral shift condition, switching neutral from the first execution state to a second execution state; wherein the second execution state is when the automatic transmission begins to enter the neutral control state; and in response to the target vehicle not meeting the neutral shift condition, maintaining neutral in the first execution state.

[0018] Optionally, the above processing module is further configured to: the neutral shift condition includes: the initial execution state is the second execution state, and the automatic parking operation state is the active state within a first preset time period, wherein, in response to the target vehicle meeting the neutral shift condition, switching the neutral gear from the initial execution state to the target execution state includes: in response to the target vehicle meeting the neutral shift condition, switching the neutral gear from the second execution state to the third execution state, wherein the third execution state is the automatic transmission completing and maintaining the neutral gear control state; in response to the target vehicle not meeting the neutral shift condition, keeping the neutral gear in the second execution state.

[0019] Optionally, the above processing module is further configured to: in response to the target vehicle not meeting the neutral shift condition, determine whether the automatic parking operation state within the second preset time is an exit state; in response to the automatic parking operation state being an exit state within the second preset time, switch the neutral shift from the second execution state to the first execution state.

[0020] Optionally, the above processing module is further configured to: The neutral shift condition includes: the initial execution state is the third execution state, the accelerator signal is an acceleration signal, and the automatic parking operation state is an exit state; wherein, in response to the target vehicle meeting the neutral shift condition, switching neutral from the initial execution state to the target execution state includes: in response to the target vehicle meeting the neutral shift condition, switching neutral from the third execution state to the fourth execution state, wherein the fourth execution state is when the automatic transmission begins to exit the neutral control state; and in response to the target vehicle not meeting the neutral shift condition, maintaining neutral in the third execution state.

[0021] Optionally, the above processing module is further configured to: the neutral shift condition includes: the initial execution state is the fourth execution state, and the execution operation of the actuator is a preset execution operation, wherein the preset execution operation is used to characterize that the actuator is in a completed state, wherein, in response to the target vehicle meeting the neutral shift condition, switching the neutral gear from the initial execution state to the target execution state includes: in response to the target vehicle meeting the neutral shift condition, switching the neutral gear from the fourth execution state to the first execution state; in response to the target vehicle not meeting the neutral shift condition, keeping the neutral gear in the fourth execution state.

[0022] According to another aspect of the present invention, a storage medium is also provided, the storage medium including a stored program, wherein, when the program is running, the device where the storage medium is located executes any of the aforementioned vehicle automatic transmission neutral control methods.

[0023] According to another aspect of the present invention, a vehicle is also provided, including an on-board memory and an on-board processor, wherein the on-board memory stores a computer program, and the on-board processor is configured to run the computer program to execute the neutral control method of the vehicle automatic transmission of any of the preceding claims.

[0024] In this embodiment of the invention, firstly, the initial execution state of the neutral gear of the automatic transmission of the target vehicle to be monitored is collected. The initial execution state is one of multiple execution states of neutral gear, and different execution states are used to characterize the execution result of neutral gear. Then, the vehicle information of the target vehicle is collected in real time. The vehicle information is used to characterize the vehicle state of the target vehicle at the current moment. Further, based on the vehicle information, it is determined whether the target vehicle meets the neutral gear switching condition. The neutral gear switching condition is used to determine the target execution state of neutral gear. The target execution state is one of different execution states. Finally, in response to the target vehicle meeting the neutral gear switching condition, the neutral gear is switched from the initial execution state to the target execution state.

[0025] It is understood that the method provided by the present invention can quickly determine the target execution state of neutral by collecting vehicle information and judging whether the vehicle information meets the neutral shifting conditions. Furthermore, it switches the neutral shifting from the initial execution state to the target execution state, thereby improving the smoothness and efficiency of neutral shifting and enhancing the user experience. In addition, by using the neutral shifting conditions, the conditions for switching between multiple execution states of neutral are clarified, improving the completeness of the state switching between multiple execution states of neutral. This achieves the technical effect of improving the smoothness of neutral shifting and enhancing the user experience, and thus solves the technical problem of poor user experience caused by the poor smoothness of the neutral control method of automatic transmission provided by related technologies. Attached Figure Description

[0026] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0027] Figure 1 This is a hardware structure block diagram of a vehicle terminal for an optional neutral control method for an automatic transmission according to an embodiment of the present invention.

[0028] Figure 2 This is a flowchart of a neutral gear control method for a vehicle automatic transmission according to an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of an optional vehicle automatic transmission neutral control process according to an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of another optional neutral gear control method for a vehicle automatic transmission according to an embodiment of the present invention;

[0031] Figure 5 This is a structural block diagram of a neutral gear control device for a vehicle automatic transmission according to an embodiment of the present invention. Detailed Implementation

[0032] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0033] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0034] According to an embodiment of the present invention, a method embodiment of a neutral gear control method for an automatic transmission in a vehicle is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0035] Figure 1 This is a hardware structure block diagram of a vehicle terminal for an optional neutral gear control method for an automatic transmission according to an embodiment of the present invention, such as... Figure 1As shown, the vehicle terminal 10 (or a mobile device 10 that communicates with the vehicle) may include one or more processors 102 (processors 102 may include, but are not limited to, processing devices such as microprocessors (MCUs) or field-programmable gate arrays (FPGAs),) a memory 104 for storing data, and a transmission device 106 for communication functions. In addition, it may also include: a display device 110, an input / output device 108 (i.e., I / O devices), a universal serial bus (USB) port (which may be included as one of the ports of a BUS bus, not shown in the figure), a network interface (not shown in the figure), a power supply (not shown in the figure), and / or a camera (not shown in the figure). Those skilled in the art will understand that... Figure 1 The structure shown is for illustrative purposes only and does not limit the structure of the vehicle terminal 1 described above. For example, the vehicle terminal 10 may also include components that are more... Figure 1 The more or fewer components shown, or having the same Figure 1 The different configurations shown.

[0036] It should be noted that the aforementioned one or more processors 102 and / or other data processing circuits may be embodied, in whole or in part, as software, hardware, firmware, or any other combination thereof. Furthermore, the data processing circuitry may be a single, independent processing module, or may be integrated, in whole or in part, into any other element within the vehicle terminal 10 (or mobile device).

[0037] The memory 104 can be used to store software programs and modules of application software, such as the program instructions / data storage device corresponding to the neutral gear control method of the vehicle automatic transmission in this embodiment of the invention. The processor 102 executes various functional applications and data processing by running the software programs and modules stored in the memory 104, thereby realizing the aforementioned neutral gear control method of the vehicle automatic transmission. The memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include memory remotely located relative to the processor 102, and these remote memories can be connected to the vehicle terminal 10 via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0038] The transmission device 106 is used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by the communication provider of the vehicle terminal 10. In one example, the transmission device 106 includes a Network Interface Controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the transmission device 106 may be a Radio Frequency (RF) module, used for wireless communication with the Internet.

[0039] Under the above operating environment, the embodiments of the present invention provide as follows: Figure 2 The method for controlling the neutral gear of the vehicle's automatic transmission is shown. Figure 2 This is a flowchart of a neutral gear control method for a vehicle automatic transmission according to an embodiment of the present invention, such as... Figure 2 As shown above, Figure 2 The embodiments shown may include at least the following implementation steps, that is, the technical solutions implemented by steps S201 to S204.

[0040] Step S201: Collect the initial execution state of the neutral gear of the automatic transmission of the target vehicle to be monitored. The initial execution state is one of multiple execution states of neutral gear, and different execution states are used to characterize the execution result of neutral gear.

[0041] In one optional solution provided by step S201 above, the target vehicle to be monitored can be a vehicle that uses an automatic transmission for automatic gear shifting. This target vehicle can include, but is not limited to, fuel cell vehicles (such as gasoline vehicles, diesel vehicles, and liquefied petroleum gas vehicles) and new energy vehicles (such as pure electric vehicles, hybrid electric vehicles, and fuel cell electric vehicles). The neutral gear can be used for one of the following vehicle states of the target vehicle: starting state, towing state, or short-term parking state. It should also be noted that the short-term parking state can be the target vehicle remaining stationary in a specific scenario. This specific scenario can be a scenario where the parking time exceeds a preset time (e.g., 30 seconds). Specifically, for example, if the preset time is 30 seconds, and the specific scenario is the target vehicle arriving at an intersection with 45 seconds remaining at a red light, then since the actual parking time of the target vehicle is 45 seconds, exceeding the preset time, it is necessary to control the automatic transmission to enter neutral to avoid excessively high fuel temperature in the automatic transmission and to save fuel.

[0042] In one optional solution provided by step S201 above, each of the above execution states can correspond to one or more neutral control processes of the automatic transmission control unit. The one or more neutral control processes can be used to implement a neutral control function (e.g., entering neutral, holding neutral, exiting neutral). The execution result can be the state of neutral of the automatic transmission of the target vehicle after the one or more neutral control processes are completed (e.g., the state of holding neutral).

[0043] In an optional solution provided by this invention, the initial execution state of the neutral gear of the automatic transmission of the target vehicle to be monitored is collected. Specifically, this can be achieved by obtaining the neutral gear execution state of the automatic transmission from the vehicle's vehicle bus. The vehicle bus can be a communication network within the target vehicle that exchanges data with various vehicle devices. It should also be noted that the aforementioned vehicle bus may include, but is not limited to, Controller Area Network (CAN) bus, Local Interconnect Network (LIN) bus, FlexRay bus, and Media Oriented Systems Transport (MOST) bus.

[0044] Step S202: Real-time acquisition of vehicle information of the target vehicle, wherein the vehicle information is used to characterize the vehicle status of the target vehicle at the current moment.

[0045] In one optional solution provided by step S202 above, the vehicle information can be information generated by the target vehicle under different vehicle states, and this vehicle information can be information related to the neutral control of the automatic transmission. Specifically, for example, the vehicle information can be vehicle speed information and wheel speed information. Based on the vehicle speed information and wheel speed information, it can be determined whether to activate neutral control. It should also be noted that the vehicle state can include: driving state and stopped state.

[0046] In the optional solution provided by the present invention, the vehicle information of the target vehicle is collected in real time. The specific method may be: reading part of the vehicle information (such as vehicle speed) in real time through the display device (such as the instrument panel) of the target vehicle, and collecting the functional signals (such as the signal of the automatic parking function) of the relevant equipment (such as the electronic stability control system) in real time using the above-mentioned vehicle bus.

[0047] Step S203: Based on vehicle information, determine whether the target vehicle meets the neutral shift condition, wherein the neutral shift condition is used to determine the target execution state of neutral, and the target execution state is one of the different execution states;

[0048] In one optional solution provided by step S203 above, the aforementioned neutral shifting condition can be used to determine whether it is necessary to switch the neutral execution state of the target vehicle's automatic transmission. This allows the target vehicle to adapt to its current scenario. Specifically, for example, if the target vehicle is currently in a scenario where the red light countdown is 1 second, meaning the target vehicle's automatic transmission is currently in a neutral control state, and the target vehicle is about to start in the next moment, it needs to disengage the target vehicle's automatic transmission from neutral control to meet the scenario requirements. It should also be noted that the aforementioned target execution state can be the same as or different from the current neutral execution state of the automatic transmission (the aforementioned initial execution state).

[0049] In the optional solution provided by the present invention, based on vehicle information, it is determined whether the target vehicle meets the neutral shifting condition. Specifically, the automatic transmission control unit uses the vehicle bus to obtain vehicle information, compares the vehicle information with the neutral shifting condition pre-stored in the storage device (such as a USB flash drive or memory card), and obtains the comparison and judgment result.

[0050] Step S204: In response to the target vehicle meeting the neutral shift condition, switch the neutral shift from the initial execution state to the target execution state.

[0051] In the optional solution provided by the present invention, in response to the target vehicle meeting the neutral shifting condition, the neutral gear is switched from the initial execution state to the target execution state. The specific method may be: based on the above comparison and judgment results, the target execution state of the neutral gear is determined and a corresponding neutral gear control command is generated. The automatic transmission control unit automatically executes the neutral gear control command to control the automatic transmission to switch the neutral gear from the initial execution state to the aforementioned target execution state.

[0052] In this embodiment of the invention, firstly, the initial execution state of the neutral gear of the automatic transmission of the target vehicle to be monitored is collected. The initial execution state is one of multiple execution states of neutral gear, and different execution states are used to characterize the execution result of neutral gear. Then, the vehicle information of the target vehicle is collected in real time. The vehicle information is used to characterize the vehicle state of the target vehicle at the current moment. Further, based on the vehicle information, it is determined whether the target vehicle meets the neutral gear switching condition. The neutral gear switching condition is used to determine the target execution state of neutral gear. The target execution state is one of different execution states. Finally, in response to the target vehicle meeting the neutral gear switching condition, the neutral gear is switched from the initial execution state to the target execution state.

[0053] It is understood that the method provided by the present invention can quickly determine the target execution state of neutral by collecting vehicle information and judging whether the vehicle information meets the neutral shifting conditions. Furthermore, it switches the neutral shifting from the initial execution state to the target execution state, thereby improving the smoothness of neutral shifting and enhancing the user experience. In addition, by using the neutral shifting conditions, the conditions for switching between multiple execution states of neutral are clarified, improving the completeness of the state switching between multiple execution states of neutral. This achieves the technical effect of improving the smoothness of neutral shifting and enhancing the user experience, and thus solves the technical problem of poor user experience caused by the poor smoothness of the neutral control method of automatic transmission provided by related technologies.

[0054] The methods described in the embodiments of the present invention will be further described below.

[0055] In an optional embodiment, in step S202, the vehicle information includes at least one of the following: vehicle speed, wheel speed, automatic parking operation status, accelerator signal, and execution operation of the actuator corresponding to the automatic transmission. The automatic parking operation status includes one of the following: active state and deactivated state. The accelerator signal includes one of the following: acceleration signal and deceleration signal.

[0056] In one optional solution provided by step S202 above, the vehicle speed refers to the driving speed of the target vehicle; the wheel speed refers to the rotational speed of the wheels of the target vehicle; the accelerator signal can be a signal collected by a sensor of the accelerator pedal position of the target vehicle; the actuator can be a solenoid valve, which may include, but is not limited to: a shift solenoid valve, a lock-up solenoid needle valve, and a pressure regulating solenoid needle valve. It is understood that in the solution provided by this invention, the actuator corresponding to the automatic transmission is a shift solenoid valve. It should also be noted that the execution operation can refer to the aforementioned shift solenoid valve switching between different gears (or different execution states of the same gear).

[0057] In the optional solution provided by this invention, the Electronic Stability Controller (ESC) is the control unit of the target vehicle's braking system. This control unit has multiple functions, including the aforementioned automatic parking function, which refers to the automatic braking function of the target vehicle. It should also be noted that the operating state of the automatic parking function can be switched based on other relevant information of the target vehicle (such as accelerator signals), thereby affecting the neutral gear position of the automatic transmission.

[0058] In the above optional embodiments, the technical effect that can be achieved is: real-time acquisition of vehicle information related to the neutral control of the automatic transmission of the target vehicle, and in subsequent steps, using the vehicle information to determine the target execution state of the neutral gear of the automatic transmission of the target vehicle. In particular, by combining the operating state of the automatic parking function of the target vehicle to determine the target execution state of the neutral gear of the automatic transmission of the target vehicle, smooth and efficient neutral control of the automatic transmission control unit of the target vehicle based on the operating state of the automatic parking function is realized, thereby improving the neutral shifting efficiency and smoothness of the automatic transmission and thus enhancing the user experience.

[0059] In an optional embodiment, in step S204, the neutral shift condition includes: the initial execution state is a first execution state, and both the vehicle speed and wheel speed are above a speed threshold. The first execution state is that the automatic transmission has not entered the neutral control state. In response to the target vehicle meeting the neutral shift condition, switching the neutral gear from the initial execution state to the target execution state includes:

[0060] Step S2041: In response to the target vehicle meeting the neutral shifting condition, the neutral gear is switched from the first execution state to the second execution state, wherein the second execution state is when the automatic transmission begins to enter the neutral control state.

[0061] Step S2042: In response to the target vehicle not meeting the neutral shift condition, the neutral gear is kept in the first execution state.

[0062] In one optional solution provided by steps S2041 to S2042 above, the speed threshold can be a threshold value for vehicle speed and wheel speed preset by a technician. It should also be noted that the wheel speed refers to the speed of each wheel of the target vehicle.

[0063] The following combination Figure 3 , Figure 4 The above methods will be further explained.

[0064] Figure 3 This is a schematic diagram of an optional neutral gear control process for a vehicle automatic transmission according to an embodiment of the present invention. Figure 4 This is a schematic diagram of another optional neutral gear control method for a vehicle automatic transmission according to an embodiment of the present invention, as shown below. Figure 3 , Figure 4As shown, as an optional implementation, when the target vehicle's automatic transmission is in neutral in the first execution state (i.e., no neutral control state), the automatic parking function is initialized (or the automatic parking operation state is in the exit state), and when the real-time collected vehicle speed and wheel speed of all wheels are greater than or equal to the speed threshold (e.g., 0.5 kph), the target execution state of the automatic transmission's neutral can be determined as the second execution state (i.e., starting to enter the neutral control state). Based on this second execution state, the automatic transmission control unit generates a second execution state control command and automatically executes the control command to switch the automatic transmission's neutral from the first execution state to the second execution state.

[0065] Still as Figure 3 , Figure 4 As shown, as another optional implementation, when the target vehicle's automatic transmission is in neutral and the automatic parking function is initialized (or the automatic parking operation is in the deactivated state), and when the real-time collected target vehicle speed is less than a speed threshold (e.g., 0.5 kph), or when the wheel speed of one (or more) wheels of the target vehicle is less than a speed threshold (e.g., 0.5 kph), it can be determined that the target vehicle does not currently meet the neutral shift condition, thereby maintaining the target execution state of the automatic transmission in neutral in the first execution state.

[0066] In an optional embodiment, in step S204, the neutral shifting condition includes: the initial execution state is the second execution state, and the automatic parking operation state within a first preset time is the active state. The process of switching neutral from the initial execution state to the target execution state in response to the target vehicle meeting the neutral shifting condition includes:

[0067] Step S2051: In response to the target vehicle meeting the neutral shift condition, the neutral gear is switched from the second execution state to the third execution state, wherein the third execution state is the automatic transmission completing and maintaining the neutral gear control state.

[0068] In step S2052, in response to the target vehicle not meeting the neutral shift condition, the neutral gear is kept in the second execution state.

[0069] In one optional solution provided by steps S2051 to S2052 above, the first preset time can be determined based on the execution time of the actuator corresponding to the automatic transmission of the target vehicle, or it can be predetermined by a technician.

[0070] Still as Figure 3 , Figure 4As shown, as an optional implementation, when the automatic transmission of the target vehicle is in neutral in the second execution state and the automatic parking is in the active state within a first preset time (e.g., 0.5s), the target execution state of the automatic transmission in neutral can be determined as the third execution state (i.e., completing and maintaining the neutral control state). Based on the third execution state, the automatic transmission control unit generates a third execution state control command and automatically executes the control command to switch the automatic transmission in neutral from the second execution state to the third execution state.

[0071] Still as Figure 3 , Figure 4 As shown, as another optional implementation, when the target vehicle's automatic transmission is in neutral in the second execution state and the automatic parking is in the exit state within a first preset time (e.g., 0.5s), it can be determined that the target vehicle does not currently meet the neutral shift condition, thereby keeping the target execution state of the automatic transmission in neutral in the second execution state.

[0072] In an optional embodiment, based on step S2052, the neutral gear control method for the vehicle's automatic transmission further includes:

[0073] Step S2061: In response to the target vehicle not meeting the neutral shift condition, determine whether the automatic parking operation status within the second preset time period is the exit state.

[0074] In step S2062, in response to the automatic parking operation being in the exit state within the second preset time, the neutral position is switched from the second execution state to the first execution state.

[0075] In one optional solution provided by steps S2061 to S2062 above, the second preset time can be determined based on the execution time of the actuator corresponding to the automatic transmission of the target vehicle, or it can be predetermined by a technician.

[0076] Still as Figure 3 , Figure 4As shown, in one optional implementation, when the target vehicle's automatic transmission is in neutral in the second execution state and the neutral switching conditions in steps S201 to S2052 are not met, it is further determined whether the target vehicle's automatic parking operation is in an exited state within a second preset time (e.g., 10 seconds). In another optional implementation, when the target vehicle's automatic transmission is in neutral in the second execution state and the target vehicle's automatic parking operation is in an exited state within a second preset time (e.g., 10 seconds), to avoid the target vehicle being in a long-term waiting state, and to reduce the target vehicle's fuel consumption or impact on surrounding vehicles, the automatic transmission control unit generates a first execution state control command and automatically executes the control command to switch the automatic transmission's neutral from the second execution state to the first execution state.

[0077] In an optional embodiment, in step S204, the neutral shifting condition includes: the initial execution state is the third execution state, the accelerator signal is an acceleration signal, and the automatic parking operation state is an exit state. The process of switching neutral from the initial execution state to the target execution state in response to the target vehicle meeting the neutral shifting condition includes:

[0078] Step S2071: In response to the target vehicle meeting the neutral shift condition, the neutral gear is switched from the third execution state to the fourth execution state, wherein the fourth execution state is when the automatic transmission begins to exit the neutral control state.

[0079] In step S2072, in response to the target vehicle not meeting the neutral shift condition, the neutral gear is kept in the third execution state.

[0080] In one optional solution provided by steps S2071 to S2072 above, the acceleration signal may be a signal collected by a sensor of the accelerator pedal position when the accelerator pedal of the target vehicle is pressed, and the acceleration signal may be used to control the engine speed of the target vehicle.

[0081] Still as Figure 3 , Figure 4 As shown, as an optional implementation, when the target vehicle's automatic transmission is in neutral in the third execution state, the accelerator signal is an acceleration signal, and the automatic parking is in the exit state, the target execution state of the automatic transmission's neutral can be determined as the fourth execution state (i.e., starting to exit the neutral control state). Based on this fourth execution state, the automatic transmission control unit generates a fourth execution state control command and automatically executes the control command to switch the automatic transmission's neutral from the third execution state to the fourth execution state.

[0082] Still as Figure 3 , Figure 4As shown, as another optional implementation, when the target vehicle's automatic transmission is in neutral in the third execution state, and when the accelerator signal is a deceleration signal, or when the automatic parking is in an active state, it can be determined that the target vehicle does not currently meet the neutral shifting conditions, thereby maintaining the target execution state of the automatic transmission in neutral in the third execution state.

[0083] In an optional embodiment, in step S204, the neutral shifting condition includes: the initial execution state is the fourth execution state, and the execution operation of the actuator is a preset execution operation, wherein the preset execution operation is used to characterize that the actuator is in a completed state, wherein, in response to the target vehicle meeting the neutral shifting condition, switching the neutral gear from the initial execution state to the target execution state includes:

[0084] Step S2081: In response to the target vehicle meeting the neutral shift condition, switch the neutral gear from the fourth execution state to the first execution state.

[0085] In step S2082, in response to the target vehicle not meeting the neutral shift condition, the neutral gear is kept in the fourth execution state.

[0086] In one optional solution provided by steps S2081 to S2082 above, the execution operation can be the operation of the actuator to perform neutral control of the automatic transmission. This execution operation may include, but is not limited to: controlling the automatic transmission to enter neutral, controlling the automatic transmission to remain in neutral, and controlling the automatic transmission to exit neutral. It should also be noted that the preset execution operation can be an operation of the actuator corresponding to a specific neutral shifting condition (such as the neutral shifting condition in steps S2081 to S2082 above), predetermined by a technician. It is understood that the states of the execution operation and the preset execution operation may include, but are not limited to: pending execution, in execution, and completed. In the optional solution provided by this invention, the preset execution operation is controlling the automatic transmission to exit neutral.

[0087] Still as Figure 3 , Figure 4 As shown, as an optional implementation, when the automatic transmission of the target vehicle is in neutral in the fourth execution state and the preset execution operation of the actuator corresponding to the automatic transmission is in the completed state, the target execution state of the automatic transmission in neutral can be determined as the first execution state. Based on the first execution state, the automatic transmission control unit generates a first execution state control command and automatically executes the control command to switch the automatic transmission in neutral from the fourth execution state to the first execution state.

[0088] Still as Figure 3 , Figure 4As shown, as another optional implementation, when the target vehicle's automatic transmission is in neutral and the preset execution operation of the actuator corresponding to the automatic transmission is in the pending (or executing) state, it can be determined that the target vehicle does not currently meet the neutral shifting conditions, thereby keeping the target execution state of the automatic transmission in neutral in the fourth execution state.

[0089] It is understood that, according to the method steps provided in the above embodiments of the present invention, the technical effect that the technical solution of the present invention can achieve is as follows: by collecting the initial execution state of the neutral gear of the automatic transmission and the vehicle information of the target vehicle, and combining multiple neutral gear switching conditions, different target execution states of the neutral gear of the automatic transmission are determined respectively, thereby realizing smooth and efficient switching of different execution states of the neutral gear of the automatic transmission, thereby improving the smoothness and efficiency of the neutral gear control of the automatic transmission of the target vehicle, improving the integrity of the state switching of different execution states of the neutral gear, and enhancing the user experience.

[0090] In this embodiment, a neutral gear control device for a vehicle automatic transmission is also provided. This device is used to implement the above embodiments and preferred embodiments, and details already described will not be repeated. As used below, a "module" is a combination of software and / or hardware that can perform a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0091] Figure 5 This is a structural block diagram of a neutral gear control device for a vehicle automatic transmission according to an embodiment of the present invention, as shown below. Figure 5 As shown, the device includes:

[0092] The acquisition module 501 is used to acquire the initial execution state of the neutral gear of the automatic transmission of the target vehicle to be monitored. The initial execution state is one of multiple execution states of neutral gear, and different execution states are used to characterize the execution result of neutral gear.

[0093] The acquisition module 502 is used to acquire vehicle information of the target vehicle in real time, wherein the vehicle information is used to characterize the vehicle status of the target vehicle at the current moment.

[0094] The judgment module 503 is used to determine whether the target vehicle meets the neutral shift condition based on vehicle information. The neutral shift condition is used to determine the target execution state of neutral, and the target execution state is one of the different execution states.

[0095] The processing module 504 is used to switch the neutral gear from the initial execution state to the target execution state in response to the target vehicle meeting the neutral gear shifting condition.

[0096] Optionally, the above-mentioned acquisition module 502 is further used for: vehicle information including at least one of the following: vehicle speed, wheel speed, automatic parking operation status, accelerator signal, and execution operation of the actuator corresponding to the automatic transmission, wherein the automatic parking operation status includes one of the following: active state, exit state, and the accelerator signal includes one of the following: acceleration signal, deceleration signal.

[0097] Optionally, the processing module 504 is further configured to: The neutral shift condition includes: the initial execution state is a first execution state, where both vehicle speed and wheel speed are above a speed threshold; the first execution state is when the automatic transmission has not entered the neutral control state; wherein, in response to the target vehicle meeting the neutral shift condition, switching neutral from the initial execution state to the target execution state includes: in response to the target vehicle meeting the neutral shift condition, switching neutral from the first execution state to a second execution state; wherein the second execution state is when the automatic transmission begins to enter the neutral control state; and in response to the target vehicle not meeting the neutral shift condition, maintaining neutral in the first execution state.

[0098] Optionally, the processing module 504 is further configured to: The neutral shift condition includes: the initial execution state is the second execution state, and the automatic parking operation state within a first preset time is the active state; wherein, in response to the target vehicle meeting the neutral shift condition, switching neutral from the initial execution state to the target execution state includes: in response to the target vehicle meeting the neutral shift condition, switching neutral from the second execution state to the third execution state, wherein the third execution state is when the automatic transmission completes and maintains neutral control; and in response to the target vehicle not meeting the neutral shift condition, maintaining neutral in the second execution state.

[0099] Optionally, the processing module 504 is further configured to: in response to the target vehicle not meeting the neutral shift condition, determine whether the automatic parking operation state within the second preset time is an exit state; in response to the automatic parking operation state being an exit state within the second preset time, switch the neutral shift from the second execution state to the first execution state.

[0100] Optionally, the processing module 504 is further configured to: The neutral shift condition includes: the initial execution state is the third execution state, the accelerator signal is an acceleration signal, and the automatic parking operation state is an exit state; wherein, in response to the target vehicle meeting the neutral shift condition, switching neutral from the initial execution state to the target execution state includes: in response to the target vehicle meeting the neutral shift condition, switching neutral from the third execution state to the fourth execution state, wherein the fourth execution state is when the automatic transmission begins to exit the neutral control state; and in response to the target vehicle not meeting the neutral shift condition, maintaining neutral in the third execution state.

[0101] Optionally, the processing module 504 is further configured to: the neutral shift condition includes: the initial execution state is the fourth execution state, and the execution operation of the actuator is a preset execution operation, wherein the preset execution operation is used to characterize that the actuator is in a completed state, wherein, in response to the target vehicle meeting the neutral shift condition, switching the neutral gear from the initial execution state to the target execution state includes: in response to the target vehicle meeting the neutral shift condition, switching the neutral gear from the fourth execution state to the first execution state; and in response to the target vehicle not meeting the neutral shift condition, keeping the neutral gear in the fourth execution state.

[0102] It should be noted that the above modules can be implemented by software or hardware. For the latter, they can be implemented in the following ways, but are not limited to: all the above modules are located in the same processor; or, the above modules are located in different processors in any combination.

[0103] According to another aspect of the present invention, a storage medium is also provided, the storage medium including a stored program, wherein, when the program is running, the device where the storage medium is located executes any of the aforementioned vehicle automatic transmission neutral control methods.

[0104] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0105] Step S1: Collect the initial execution state of the neutral gear of the automatic transmission of the target vehicle to be monitored. The initial execution state is one of multiple execution states of neutral gear, and different execution states are used to characterize the execution result of neutral gear.

[0106] Step S2: Collect vehicle information of the target vehicle in real time, wherein the vehicle information is used to characterize the vehicle status of the target vehicle at the current moment.

[0107] Step S3: Based on vehicle information, determine whether the target vehicle meets the neutral shift condition. The neutral shift condition is used to determine the target execution state of neutral, and the target execution state is one of the different execution states.

[0108] Step S4: In response to the target vehicle meeting the neutral shift condition, switch the neutral shift from the initial execution state to the target execution state.

[0109] Optionally, in this embodiment, the storage medium may include, but is not limited to, various media capable of storing computer programs, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0110] According to another aspect of the present invention, a vehicle is also provided, including an on-board memory and an on-board processor, wherein the on-board memory stores a computer program, and the on-board processor is configured to run the computer program to execute the neutral control method of the vehicle automatic transmission of any of the preceding claims.

[0111] Optionally, in this embodiment, the on-board processor can be configured to perform the following steps via a computer program:

[0112] Step S1: Collect the initial execution state of the neutral gear of the automatic transmission of the target vehicle to be monitored. The initial execution state is one of multiple execution states of neutral gear, and different execution states are used to characterize the execution result of neutral gear.

[0113] Step S2: Collect vehicle information of the target vehicle in real time, wherein the vehicle information is used to characterize the vehicle status of the target vehicle at the current moment.

[0114] Step S3: Based on vehicle information, determine whether the target vehicle meets the neutral shift condition. The neutral shift condition is used to determine the target execution state of neutral, and the target execution state is one of the different execution states.

[0115] Step S4: In response to the target vehicle meeting the neutral shift condition, switch the neutral shift from the initial execution state to the target execution state.

[0116] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments and their optional implementations, which will not be repeated here.

[0117] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0118] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0119] In the several embodiments provided by this invention, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection can be through some interfaces; the indirect coupling or communication connection of units or modules can be electrical or other forms.

[0120] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0121] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0122] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0123] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A neutral control method of an automatic transmission of a vehicle, characterized by, The method comprises: acquiring an initial execution state of a neutral gear of an automatic transmission of a target vehicle to be monitored, wherein the initial execution state is one of a plurality of execution states of the neutral gear, and different execution states are used to represent execution results of the neutral gear; acquiring vehicle information of the target vehicle in real time, wherein the vehicle information is used to represent a vehicle state of the target vehicle at a current time, and the vehicle information comprises a vehicle speed, a wheel speed, an operating state of an automatic parking, a signal of an accelerator, and an execution operation of an execution mechanism corresponding to the automatic transmission, wherein the operating state of the automatic parking comprises one of an activated state and an exited state, and the signal of the accelerator comprises one of an acceleration signal and a deceleration signal; judging whether the target vehicle satisfies a neutral gear switching condition based on the vehicle information, wherein the neutral gear switching condition is used to determine a target execution state of the neutral gear, and the target execution state is one of different execution states; switching the neutral gear from the initial execution state to the target execution state in response to the target vehicle satisfying the neutral gear switching condition; the neutral gear switching condition comprises that the initial execution state is a first execution state, the vehicle speed and the wheel speed are both above a speed threshold, and the first execution state is that the automatic transmission does not enter a neutral gear control state, wherein switching the neutral gear from the initial execution state to the target execution state in response to the target vehicle satisfying the neutral gear switching condition comprises switching the neutral gear from the first execution state to a second execution state in response to the target vehicle satisfying the neutral gear switching condition, and keeping the neutral gear in the first execution state in response to the target vehicle not satisfying the neutral gear switching condition; the neutral gear switching condition further comprises that the initial execution state is a second execution state, and the operating state of the automatic parking is the activated state within a first preset time, wherein switching the neutral gear from the initial execution state to the target execution state in response to the target vehicle satisfying the neutral gear switching condition comprises switching the neutral gear from the second execution state to a third execution state in response to the target vehicle satisfying the neutral gear switching condition, wherein the second execution state is that the automatic transmission starts to enter a neutral gear control state, and the third execution state is that the automatic transmission completes and keeps the neutral gear control state, and keeping the neutral gear in the second execution state in response to the target vehicle not satisfying the neutral gear switching condition; the method further comprises: judging whether the operating state of the automatic parking is the exited state within a second preset time in response to the target vehicle not satisfying the neutral gear switching condition; and switching the neutral gear from the second execution state to a first execution state in response to the operating state of the automatic parking being the exited state within the second preset time.

2. The neutral control method of an automatic transmission for a vehicle according to claim 1, characterized by The neutral switching condition includes: the initial execution state is a third execution state, the signal of the accelerator is the acceleration signal, and the running state of the automatic parking is an exit state. In response to the target vehicle satisfying the neutral switching condition, the neutral gear is switched from the initial execution state to the target execution state, including: In response to the target vehicle satisfying the neutral switching condition, the neutral gear is switched from the third execution state to a fourth execution state, wherein the fourth execution state is that the automatic transmission starts to exit the neutral control state; In response to the target vehicle not satisfying the neutral switching condition, the neutral gear is kept in the third execution state.

3. The neutral control method of an automatic transmission for a vehicle according to claim 2, characterized by The neutral switching condition includes: the initial execution state is a fourth execution state, and the execution operation of the execution mechanism is a preset execution operation, which is used to represent that the execution mechanism is in a completion state. In response to the target vehicle satisfying the neutral switching condition, the neutral gear is switched from the initial execution state to the target execution state, including: In response to the target vehicle satisfying the neutral switching condition, the neutral gear is switched from the fourth execution state to a first execution state; In response to the target vehicle not satisfying the neutral switching condition, the neutral gear is kept in the fourth execution state.

4. A neutral gear control device for a vehicle automatic transmission, characterized in that, It includes: An acquisition module is configured to collect an initial execution state of a neutral gear of an automatic transmission of a target vehicle to be monitored, wherein the initial execution state is one of a plurality of execution states of the neutral gear, and different execution states are used to represent execution results of the neutral gear; An acquisition module is configured to collect vehicle information of the target vehicle in real time, wherein the vehicle information is used to represent a vehicle state of the target vehicle at a current time, and the vehicle information includes: vehicle speed, wheel speed, running state of an automatic parking, signal of an accelerator, and execution operation of an execution mechanism corresponding to the automatic transmission, wherein the running state of the automatic parking includes one of: an active state and an exit state, and the signal of the accelerator includes one of: an acceleration signal and a deceleration signal; A judgment module is configured to determine whether the target vehicle satisfies a neutral switching condition based on the vehicle information, wherein the neutral switching condition is used to determine a target execution state of the neutral gear, and the target execution state is one of different execution states; A processing module is configured to switch the neutral gear from the initial execution state to the target execution state in response to the target vehicle satisfying the neutral switching condition; The neutral switching condition includes: the initial execution state is a first execution state, the vehicle speed and the wheel speed are both above a speed threshold, and the first execution state is that the automatic transmission does not enter a neutral control state. The processing module is further configured to switch the neutral gear from the first execution state to a second execution state in response to the target vehicle satisfying the neutral switching condition, and keep the neutral gear in the first execution state in response to the target vehicle not satisfying the neutral switching condition. The neutral switching condition further comprises: the initial execution state is a second execution state, and the running state of the automatic parking within a first preset time is the activated state, wherein the processing module is further configured to switch the neutral from the second execution state to a third execution state in response to the target vehicle satisfying the neutral switching condition, the second execution state is that the automatic transmission starts to enter a neutral control state, and the third execution state is that the automatic transmission completes and remains in the neutral control state; and keep the neutral in the second execution state in response to the target vehicle not satisfying the neutral switching condition. The processing module is further configured to determine whether the running state of the automatic parking within a second preset time is the exited state in response to the target vehicle not satisfying the neutral switching condition; and switch the neutral from the second execution state to a first execution state in response to the running state of the automatic parking within the second preset time being the exited state.

5. A storage medium, characterized by The storage medium comprises a stored program, wherein the program controls a device in which the storage medium is located to perform the neutral control method of the vehicle automatic transmission according to any one of claims 1 to 3 when the program is running.

6. A vehicle characterized by comprising: The device comprises an on-board storage and an on-board processor, the on-board storage stores a computer program, and the on-board processor is configured to run the computer program to perform the neutral control method of the vehicle automatic transmission according to any one of claims 1 to 3.

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