Vehicle starting control method, controller, and engineering equipment

Abstract

The present application relates to the technical field of vehicle control, and particularly relates to a vehicle starting control method, a controller, a vehicle, an electronic device and a non-transitory computer readable storage medium, the vehicle starting control method comprising: triggering an emergency starting mode; determining that a current vehicle condition meets at least one emergency starting condition, and controlling engine starting; the emergency starting condition is a condition for ensuring the safety of vehicle emergency starting. The present application provides a safe method for starting a vehicle in an emergency, meets the actual needs of a driver, and after triggering the emergency starting mode, only needs to compare and judge the emergency starting condition, without needing to consider the gear signal of the vehicle, and solves the problem that a traditional automatic transmission vehicle cannot start due to loss or unavailability of the gear signal.

Description

Technical Field

[0001] This invention relates to the field of vehicle control technology, and in particular to a vehicle starting control method, controller, vehicle, electronic device, and non-transitory computer-readable storage medium. Background Technology

[0002] Currently, the starting control method for automatic transmission vehicles relies on identifying the ignition switch signal and the transmission gear position signal. Only when the ignition switch is in the start position and the transmission is in neutral (N) or park (P) will the engine be connected to the power supply, thus starting the engine. Conversely, if the transmission gear position signal is lost or unreliable, the engine cannot be started. However, the driver may still need to start the engine to meet specific power needs, such as turning on the air conditioning, powering electrical appliances, or maneuvering to avoid danger. In this situation, the vehicle cannot perform emergency engine starting, thus failing to meet driving requirements. Summary of the Invention

[0003] This invention provides a vehicle starting control method, controller, vehicle, electronic device, and non-transitory computer-readable storage medium to address one of the deficiencies in the prior art, thereby meeting the actual needs of the driver. After triggering the emergency start mode, only a comparison with the emergency start conditions is required, without needing to consider the vehicle's gear position signal. This solves the problem that traditional automatic transmission vehicles cannot start due to lost or unreliable gear position signals.

[0004] This invention provides a vehicle starting control method, comprising:

[0005] Trigger emergency start mode;

[0006] Determine if the current vehicle conditions meet at least one emergency start condition, and control the engine to start;

[0007] The emergency start conditions are those that ensure the safety of vehicle emergency start.

[0008] According to a vehicle starting control method provided by the present invention, the triggering of the emergency start mode includes:

[0009] If the gear position signal output by the transmission is determined to be unreliable, an emergency start command is obtained.

[0010] Emergency start mode is triggered based on the emergency start command.

[0011] According to a vehicle starting control method provided by the present invention, the step of determining that the gear position signal output by the transmission is unreliable and obtaining an emergency start command includes:

[0012] Get the current engine speed and the current gear shift position;

[0013] The emergency start command is obtained by determining that the engine speed at the current moment is less than the first set speed and that the shifter position at the current moment is different from the shifter position at the previous moment.

[0014] According to a vehicle starting control method provided by the present invention, the triggering of the emergency start mode further includes:

[0015] Determine that the gear position signal output by the transmission is reliable;

[0016] If it is determined that the gear position of the transmission is not N or P, the emergency start command is obtained.

[0017] According to a vehicle starting control method provided by the present invention, determining that the current vehicle conditions meet at least one emergency starting condition and controlling the engine to start includes:

[0018] If the current vehicle conditions meet at least one of the emergency start conditions, and the start trigger lasts for a preset duration or longer, the engine is controlled to start.

[0019] According to a vehicle starting control method provided by the present invention, the emergency starting conditions include the engine speed being lower than a second set speed, the battery voltage being higher than a set voltage, the actual vehicle speed being lower than a set vehicle speed, meeting the engine compartment tilt position requirements, obtaining a brake signal, not being in GPS locked or anti-theft locked state, and obtaining a vehicle CAN network starting request signal.

[0020] The present invention also provides a controller based on the vehicle starting control method described above, comprising:

[0021] The trigger module is used to trigger the emergency start mode;

[0022] The judgment module is used to determine whether the current vehicle conditions meet at least one emergency start condition and control the engine to start.

[0023] The present invention also provides a vehicle including the controller described above.

[0024] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the vehicle starting control method as described above.

[0025] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the vehicle starting control method as described above.

[0026] The vehicle starting control method provided by this invention, after triggering the emergency start mode, determines whether the current vehicle conditions meet at least one emergency start condition. If the current vehicle conditions meet at least one emergency start condition, the engine is controlled to start. The emergency start condition is the condition that ensures the vehicle's safety under emergency start conditions, obtained after a detailed analysis of the engine and vehicle's working principles and usage scenarios.

[0027] This invention provides a safe method for emergency vehicle starting, meeting the actual needs of drivers. After triggering the emergency start mode, only a comparison with emergency start conditions is required; the vehicle's gear position signal is no longer considered, solving the problem of traditional automatic transmission vehicles failing to start due to lost or unreliable gear position signals. Based on different vehicle usage scenarios and current vehicle conditions, the method can meet vehicle starting requirements in specific scenarios without increasing hardware costs, enhancing the system's robustness and practicality. Based on the engine's working principle, a multi-path vehicle starting control method is proposed under different emergency start conditions, taking into account the functional requirements of both the engine control unit (ECU) and the transmission control unit (TCU), coordinating their relationship to achieve safe and effective vehicle starting under both normal and emergency conditions.

[0028] The vehicle starting control method of the present invention is based on a large amount of experimental test data and adopts a multi-condition, multi-path and variable parameter control method. When one of the emergency starting conditions is not met, the normal operation of the control method can be achieved by combining other emergency starting conditions. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 This is one of the flowcharts of the vehicle starting control method provided by the present invention;

[0031] Figure 2 This is the second flowchart of the vehicle starting control method provided by the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of the electronic device provided by the present invention.

[0033] Figure label:

[0034] 810. Processor; 820. Communication interface; 830. Memory;

[0035] 840. Communication bus. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0037] like Figure 1 and Figure 2 As shown, the vehicle starting control method provided in this embodiment of the invention includes:

[0038] Trigger emergency start mode;

[0039] Determine if the current vehicle conditions meet at least one emergency start condition, and control the engine to start;

[0040] Emergency starting conditions are the conditions that ensure the safety of vehicle emergency starting.

[0041] The vehicle starting control method of this invention, after triggering the emergency start mode, determines whether the current vehicle conditions meet at least one emergency start condition. If the current vehicle conditions meet at least one emergency start condition, the engine is controlled to start. The emergency start condition is the condition that ensures the vehicle's safety under emergency start conditions, obtained after a detailed analysis of the engine and vehicle's working principles and usage scenarios.

[0042] This invention provides a safe method for emergency vehicle starting, meeting the actual needs of drivers. After triggering the emergency start mode, only a comparison with emergency start conditions is required; the vehicle's gear position signal is no longer considered, solving the problem of traditional automatic transmission vehicles failing to start due to lost or unreliable gear position signals. Based on different vehicle usage scenarios and current vehicle conditions, the method can meet vehicle starting requirements in specific scenarios without increasing hardware costs, enhancing the system's robustness and practicality. Based on the engine's working principle, a multi-path vehicle starting control method is proposed under different emergency start conditions, taking into account the functional requirements of both the engine control unit (ECU) and the transmission control unit (TCU), coordinating their relationship to achieve safe and effective vehicle starting under both normal and emergency conditions.

[0043] The vehicle starting control method of the present invention is based on a large amount of experimental test data and adopts a multi-condition, multi-path and variable parameter control method. When one of the emergency starting conditions is not met, the normal operation of the control method can be achieved by combining other emergency starting conditions.

[0044] In this embodiment, the emergency start mode can be triggered by obtaining a key power-on signal. After triggering the emergency start mode, it is determined whether the current vehicle conditions meet at least one emergency start condition. If the current vehicle conditions do not meet the emergency start condition, the system returns to the triggered start mode state.

[0045] According to an embodiment of the present invention, triggering the emergency start mode includes:

[0046] If the gear position signal output by the transmission is determined to be unreliable, an emergency start command is obtained.

[0047] Emergency start mode is triggered based on the emergency start command.

[0048] In traditional vehicle starting control methods, when the gear position status signal output by the transmission control unit is lost or unreliable, after the vehicle is powered on, if the gear shifter is moved, the corresponding gear displayed on the shifter does not correspond to the actual gear position of the transmission. That is, the shifter is in drive, but the transmission is actually in neutral, and vice versa. In this case, the engine cannot start.

[0049] In this embodiment, the gear position information of the automatic transmission vehicle is sent to the engine controller through the transmission controller. To ensure the accurate determination and triggering of the emergency start mode, gear position determination is set as the determination condition. To avoid the adverse effects on the triggering of the emergency start mode caused by interference from other external factors or human error on the gear position signal, after the key is powered on, it is first determined whether the gear position signal output by the transmission is reliable. If it is not reliable, an emergency start command is obtained to enter the emergency start mode and start the vehicle.

[0050] According to an embodiment of the present invention, determining that the gear position signal output by the transmission is unreliable and obtaining an emergency start command includes:

[0051] Get the current engine speed and the current gear shift position;

[0052] If the engine speed at the current moment is determined to be lower than the first set speed and the shifter position at the current moment is different from the shifter position at the previous moment, an emergency start command is obtained.

[0053] In this embodiment, to eliminate interference from external factors or human error on the gear position signal, relevant parameters of the engine and gear shifter are introduced as conditions for judging the gear position signal of the transmission. After obtaining the current engine speed and the current gear shifter position, the relationship between the current engine speed and the first set speed is determined, as well as the relationship between the current gear shifter position and the previously recorded gear shifter position. If the current engine speed is less than the first set speed and the current gear shifter position is different from the previous gear shifter position, it proves that the gear position signal of the transmission is unreliable. In this case, regardless of the actual accurate gear position of the transmission, the gear position signal can be ignored, and the emergency start mode can be directly entered. Therefore, an emergency start command is obtained, and the emergency start mode is triggered.

[0054] In this embodiment, the engine speed and shifter position can be obtained through message content. While receiving messages at a specific frequency, the current engine speed can be compared with a first set speed, and the current shifter position can be compared with the previous shifter position to obtain a judgment result. In other embodiments, engine speed, shifter position, etc., can be obtained through direct detection by sensors, and then the detection results can be compared and processed.

[0055] Understandably, the initial set speed can be selected according to actual working needs, and is related to the vehicle's own state structure, control method, and structural form.

[0056] According to an embodiment of the present invention, triggering the emergency start mode further includes:

[0057] Determine the reliability of the gear position signal output by the transmission;

[0058] Once it is determined that the gearbox is not in either N or P position, an emergency start command is obtained.

[0059] In this embodiment, after obtaining the current engine speed and the current shifter position, the relationship between the current engine speed and a first set speed, and the relationship between the current shifter position and the previously recorded shifter position, are determined. If the current engine speed is greater than or equal to the first set speed, and the current shifter position is the same as the previous shifter position, the gearbox gear signal is considered reliable. Further evaluation of the gearbox gear signal is then needed to determine whether the vehicle needs to be started normally or urgently. The gearbox is checked to see if it is in neutral (N) or park (P). If it is neither N nor P, the current gear is not suitable for normal vehicle starting. Therefore, an emergency start command is obtained, triggering the emergency start mode and starting the vehicle. Because automatic transmission vehicles have a torque converter, the transmission and engine are not rigidly connected. Therefore, even if the vehicle is not in N or P, starting the engine will not damage the transmission or other components.

[0060] In this embodiment, after determining that the gearbox gear signal is reliable, it is determined whether the gearbox is in N or P gear. If the gearbox is in N or P gear, it proves that the current actual gear of the gearbox can enable the vehicle to start normally without entering the emergency start mode. Then, the vehicle can be started normally by turning the ignition with the key.

[0061] According to an embodiment of the present invention, determining that the current vehicle conditions meet at least one emergency start condition and controlling engine start includes:

[0062] If the current vehicle conditions meet at least one emergency start condition and the start trigger lasts for a preset duration, control the engine to start.

[0063] In this embodiment, after the emergency start mode is triggered by igniting the key, it is determined whether the current vehicle conditions meet at least one emergency start condition. If the current vehicle conditions meet at least one emergency start condition, the engine can be started if the key is ignited for a preset time or longer.

[0064] In this embodiment, the preset duration can be selected as 5 seconds. In normal starting mode, starting only requires 1 to 2 seconds to control engine starting. In other embodiments, if triggered by a button power-on, pressing and holding the button for a preset duration or longer will control engine starting.

[0065] According to one embodiment of the present invention, emergency starting conditions include engine speed being lower than a second set speed, battery voltage being higher than a set voltage, actual vehicle speed being lower than a set vehicle speed, meeting engine compartment tilt position requirements, obtaining a brake signal, not being in GPS (Global Positioning System) locked or anti-theft locked state, and obtaining a vehicle CAN (Controller Area Network) start-up request signal.

[0066] In this embodiment, because of the presence of a hydraulic torque converter, the transmission and engine are not rigidly connected in an automatic transmission vehicle. Therefore, even if the vehicle is not in N or P gear, starting the engine will not pose a risk of damaging the transmission or other components. However, the vehicle can only be started in emergency start mode under specific conditions to ensure that the vehicle will not cause a safety accident due to sudden movement.

[0067] Specific conditions refer to emergency start conditions, as follows:

[0068] 1. The engine speed is lower than the second set speed to ensure that there is no risk of damaging the starter or other components during repeated or secondary starts;

[0069] 2. The battery voltage is higher than the set voltage to ensure that the key can continuously ignite the starter motor until the engine starts.

[0070] 3. The actual vehicle speed is lower than the set speed in order to ensure safe driving;

[0071] 4. The tilt position check of the engine compartment meets the requirements to ensure vehicle safety;

[0072] 5. Pressing the brake pedal or pulling the handbrake generates a braking signal to ensure vehicle safety;

[0073] 6. The vehicle is not in GPS-locked or anti-theft-locked mode;

[0074] 7. There is a starting requirement on the vehicle's CAN network, the purpose of which is to ensure remote starting.

[0075] Based on the engine's working principle, a multi-path vehicle starting control algorithm is proposed, taking into account the functional requirements of both the engine control unit (ECU) and the transmission control unit (TCU), coordinating their relationship to achieve safe and effective vehicle starting under both normal and emergency conditions. Based on extensive experimental data, a multi-condition, multi-path, and variable-parameter control algorithm is employed. Even if one condition is not met, the system can still operate normally through a combination of other conditions, enhancing the system's robustness and practicality.

[0076] It is understandable that the second set speed, set voltage, and set vehicle speed can all be selected according to actual working needs, and are related to the vehicle's own state structure, control method, and structural form.

[0077] The controller and vehicle provided by the present invention are described below. The control device and vehicle described below can be referred to in correspondence with the vehicle starting control method described above.

[0078] This invention also provides a controller based on the vehicle starting control method described in the above embodiments, comprising:

[0079] The trigger module is used to trigger the emergency start mode;

[0080] The judgment module is used to determine whether the current vehicle conditions meet at least one emergency start condition and control the engine to start.

[0081] The controller in this embodiment of the invention executes the vehicle starting control method of this embodiment. The triggering module is used to trigger the emergency start mode. After receiving the triggering command from the triggering module, the judgment module determines whether the current vehicle conditions meet at least one emergency start condition. The current vehicle conditions are compared with the emergency start conditions. If the current vehicle conditions meet at least one emergency start condition, an execution command is output to control the engine to start. If the current vehicle conditions do not meet the emergency start conditions, a return command is output to return to the emergency start triggering state.

[0082] like Figure 3 As shown, embodiments of the present invention also provide a vehicle, including a controller as described in the above embodiments.

[0083] The vehicles in this embodiment of the invention are engineering equipment vehicles equipped with the controller provided in the above embodiments, including working vehicles such as heavy trucks, trailers, excavators, roadheaders, bulldozers, road rollers, and concrete pump trucks.

[0084] This invention also provides an electronic device, including: a processor 810, a communications interface 820, a memory 830, and a communication bus 840, wherein the processor 810, the communications interface 820, and the memory 830 communicate with each other via the communication bus 840. The processor 810 can call logical instructions in the memory 830 to execute the vehicle starting control method of the above embodiment.

[0085] Furthermore, the logical instructions in the aforementioned memory 830 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, essentially, or the part that contributes to the prior art, or a 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, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0086] On the other hand, embodiments of the present invention also provide a computer program product, the computer program product including a computer program stored on a non-transitory computer-readable storage medium, the computer program including program instructions, and when the program instructions are executed by a computer, the computer is able to execute the vehicle starting control method provided in the above embodiments.

[0087] In another aspect, embodiments of the present invention also provide a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to perform the vehicle starting control method provided in the above embodiments.

[0088] The device embodiments described above are merely illustrative. 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 network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0089] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vehicle starting control method, characterized in that, include: Obtain the current engine speed and gear shift position of the automatic transmission vehicle at the current moment; The system determines the relationship between the current engine speed and the first set speed, as well as the relationship between the current shifter position and the shifter position recorded at the previous moment, and comprehensively judges whether the gear position signal output by the transmission is reliable. If the gear position signal output by the transmission is unreliable, obtain an emergency start command; Based on the emergency start command, the emergency start mode is triggered; among them, the torque converter of the automatic transmission vehicle has a non-rigid connection characteristic; Determine if the current vehicle conditions meet at least one emergency start condition, and control the engine to start; wherein, the emergency start condition includes the engine speed being lower than a second set speed, the battery voltage being higher than a set voltage, the actual vehicle speed being lower than a set vehicle speed, meeting the engine compartment tilt position requirement, obtaining a brake signal, not being in GPS locked or anti-theft locked state, and obtaining a vehicle CAN network start-up request signal. The emergency start conditions are those that ensure the safety of vehicle emergency start.

2. The vehicle starting control method according to claim 1, characterized in that, If the gear position signal output by the transmission is determined to be unreliable, obtaining an emergency start command includes: The emergency start command is obtained by determining that the engine speed at the current moment is less than the first set speed and that the shifter position at the current moment is different from the shifter position at the previous moment.

3. The vehicle starting control method according to claim 1, characterized in that, The emergency start-up mode also includes: Determine that the gear position signal output by the transmission is reliable; If it is determined that the gear position of the transmission is not N or P, the emergency start command is obtained.

4. The vehicle starting control method according to claim 1, characterized in that, The step of determining that the current vehicle conditions meet at least one emergency start condition and controlling the engine to start includes: If the current vehicle conditions meet at least one of the emergency start conditions, and the start trigger lasts for a preset duration or longer, the engine is controlled to start.

5. A controller, characterized in that, The vehicle starting control method according to any one of claims 1 to 4 includes: The trigger module is used to obtain the current engine speed and shifter position of the automatic transmission vehicle; determine the relationship between the current engine speed and a first set speed, and the relationship between the current shifter position and the shifter position recorded at the previous moment, and comprehensively determine whether the gear position signal output by the transmission is reliable; if the gear position signal output by the transmission is unreliable, an emergency start command is obtained; based on the emergency start command, the emergency start mode is triggered; wherein, the torque converter of the automatic transmission vehicle has a non-rigid connection characteristic; The judgment module is used to determine that the current vehicle conditions meet at least one emergency start condition and control the engine to start; wherein, the emergency start condition includes the engine speed being lower than a second set speed, the battery voltage being higher than a set voltage, the actual vehicle speed being lower than a set vehicle speed, meeting the engine compartment tilt position requirement, obtaining a brake signal, not being in GPS locked or anti-theft locked state, and obtaining the vehicle CAN network start-up request signal.

6. A vehicle, characterized in that, Includes the controller as described in claim 5.

7. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the vehicle starting control method as described in any one of claims 1 to 4.

8. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the vehicle starting control method as described in any one of claims 1 to 4.

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