Vehicle driving performance limiting method and device, electronic equipment and storage medium

Abstract

The application discloses a vehicle driving performance limiting method and device, electronic equipment and a storage medium. The vehicle driving performance limiting method is applied to a hybrid vehicle and comprises the following steps: in response to a driving performance limiting instruction, first driving state information of the hybrid vehicle is acquired; and in the case where it is determined that the first driving state information meets a preset vehicle speed limiting condition, a vehicle speed of the hybrid vehicle is limited by a motor control unit. The application solves the technical problem that the driving performance limiting function of the hybrid vehicle is difficult to comply with the regulations in the related art.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a method, device, electronic device, and storage medium for limiting vehicle driving performance. Background Technology

[0002] According to the National VI emission standards for motor vehicles, vehicles meeting these standards must possess the capability to limit driving performance, including speed control. In related technologies, this is typically achieved by limiting engine fuel injection to control vehicle speed. However, hybrid vehicles sometimes operate under the influence of a drive motor. In this situation, even with the driving performance limiting function activated and fuel injection controlled, speed limitation cannot be achieved, thus failing to implement limp-walking and failing to meet regulatory requirements. Summary of the Invention

[0003] The main objective of this application is to provide a method, device, electronic device, and storage medium for limiting the driving performance of a vehicle, aiming to solve the technical problem that the driving performance limiting function of hybrid vehicles is difficult to comply with in the related art.

[0004] To achieve the above objectives, this application provides a method for limiting vehicle driving performance, which is applied to hybrid vehicles and includes the following steps:

[0005] In response to a driving performance limitation command, the first driving state information of the hybrid vehicle is obtained;

[0006] If the first driving status information is determined to meet the preset speed limit conditions, the speed of the hybrid vehicle is limited by the motor control unit.

[0007] This application also provides a vehicle driving performance limiting device, the vehicle driving performance limiting device comprising:

[0008] The acquisition module is used to acquire the first driving state information of the hybrid vehicle in response to a driving performance limitation command;

[0009] The speed limit module is used to limit the speed of the hybrid vehicle through the motor control unit when it is determined that the first driving state information meets the preset speed limit conditions.

[0010] This application also provides an electronic device, which is a physical device, comprising: a memory, a processor, and a program of the vehicle driving performance limiting method stored in the memory and executable on the processor. When the program of the vehicle driving performance limiting method is executed by the processor, it can implement the steps of the vehicle driving performance limiting method as described above.

[0011] This application also provides a storage medium, which is a computer-readable storage medium, storing a program for implementing a vehicle driving performance limiting method. When the program for implementing the vehicle driving performance limiting method is executed by a processor, it implements the steps of the vehicle driving performance limiting method as described above.

[0012] This application provides a method, apparatus, electronic device, and storage medium for limiting vehicle driving performance. By responding to a driving performance limiting command, it acquires first driving state information of the hybrid vehicle, thus achieving the acquisition of this information before executing the driving performance limiting command. Then, by determining that the first driving state information meets preset speed limit conditions, the motor control unit limits the speed of the hybrid vehicle, achieving speed limiting based on the hybrid vehicle's driving state. This allows the speed limit to be adjusted according to the vehicle's state. At lower speeds after the speed limit is applied, the hybrid vehicle is typically driven by the drive motor. When the first driving state information meets the preset speed limit conditions, the speed of the hybrid vehicle can be limited by the motor control unit, which can achieve limping of the hybrid vehicle. This overcomes the technical defect that when the hybrid vehicle is driven by the drive motor, even if the driving performance limiting function is activated and the engine fuel injection is controlled, the speed cannot be limited and limping cannot be achieved, thus failing to meet regulatory requirements. This provides a driving performance limiting method for hybrid vehicles, which can enable the hybrid vehicle to limp when driving performance limiting is required by regulations, so that the driving performance limiting function of the hybrid vehicle meets the requirements of the National VI Motor Vehicle Pollutant Emission Standard. Attached Figure Description

[0013] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a flowchart illustrating the first embodiment of the vehicle driving performance limiting method in this application;

[0016] Figure 2 This is a flowchart illustrating one possible implementation of the vehicle driving performance limiting method in this application;

[0017] Figure 3 This is a flowchart illustrating the second embodiment of the vehicle driving performance limiting method in this application;

[0018] Figure 4 This is a schematic diagram of one embodiment of the vehicle driving performance limiting device in this application;

[0019] Figure 5 This is a schematic diagram of the device structure of the hardware operating environment involved in the vehicle driving performance limiting method in this application embodiment.

[0020] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0022] Example 1

[0023] This application provides a method for limiting vehicle driving performance. In the first embodiment of this method, refer to... Figure 1 The vehicle driving performance limiting method is applied to hybrid vehicles and includes the following steps:

[0024] Step S10: In response to the driving performance limitation command, obtain the first driving state information of the hybrid vehicle;

[0025] The execution subject of the method in this embodiment can be a vehicle driving performance limiting device, or a vehicle driving performance limiting terminal device or server. This embodiment takes a vehicle driving performance limiting device as an example. The vehicle driving performance limiting device can be integrated into terminal devices such as vehicles with data processing functions, vehicle controllers, vehicle terminals, smartphones, and tablets.

[0026] In this embodiment, it should be noted that driving performance limitation refers to a method of restricting driving performance to ensure the normal operation of the after-treatment system, thereby enabling the vehicle exhaust to meet emission standards. The specific requirements for driving performance limitation are determined according to the National VI Emission Standard for Motor Vehicles, which includes speed limits. The driving performance limitation command is an instruction to activate the driving performance limitation function. In one feasible implementation, the driving performance limitation command can be generated by the engine control unit and sent to the CAN (Controller Area Network) line when the hybrid vehicle meets the preset driving performance limitation conditions.

[0027] In one feasible approach, the driving performance limitation can be a severe driving performance limitation or other driving performance limitation that requires speed limits.

[0028] The first driving status information refers to information related to the driving status of the hybrid vehicle, including vehicle speed, power battery charge, vehicle controller status information, vehicle driving mode, driving control command related information, etc. Among them, the vehicle controller status refers to the working status of the vehicle controller, including sleep state, fault state, running state, etc. The vehicle controller status information refers to information related to the vehicle controller status, including the current status of the vehicle controller, the status switching information of the vehicle controller from the first state to the second state, etc. The driving control command refers to control commands related to vehicle driving, including engine start command, generator stop command, driving performance limit command, etc. The driving control command related information refers to information related to the driving control command, including the actuator information of the driving control command, the time information of the driving control command, etc.

[0029] For example, driving performance limitation instructions are detected continuously or at intervals. After a driving performance limitation instruction is detected, the first driving state information of the hybrid vehicle is obtained in response to the driving performance limitation instruction.

[0030] In one feasible approach, the step of obtaining the first driving state information of the hybrid vehicle in response to a driving performance limitation command can be: identifying the command on the CAN bus through the vehicle controller, and after identifying the driving performance limitation command, obtaining the current first driving state information of the hybrid vehicle in response to the driving performance limitation command.

[0031] Optionally, before the step of obtaining the first driving state information of the hybrid vehicle in response to a driving performance limitation command, the method further includes:

[0032] Step A10: Obtain the emission status data of the hybrid vehicle;

[0033] Step A20: If the emission status data is determined to meet the preset driving performance limit conditions, a driving performance limit command is generated.

[0034] In this embodiment, it should be noted that the emission status data refers to sensor data related to vehicle emissions monitored by various sensors installed on the vehicle, including one or more of the following: engine coolant temperature, engine intake air temperature, intake air pressure, exhaust air temperature, pressure before and after the particulate filter, nitrogen oxide sensor concentration, urea level, and voltage of the front and rear oxygen sensors. The preset driving performance limits can be determined according to the National VI emission standards for motor vehicles to ensure the legal and compliant use of hybrid vehicles.

[0035] For example, during vehicle operation after power-on, emission status data of the hybrid vehicle can be continuously or periodically acquired. This emission status data is then input into a preset emission detection model to determine whether the current vehicle emission status data meets preset driving performance limits. If the emission status data meets the preset driving performance limits, a driving performance limit command is generated. The preset emission detection model is similar to existing technologies and will not be elaborated upon here.

[0036] In one feasible approach, the emission status data can be continuously monitored by an OBD (On Board Diagnostics) system to determine whether the emission status data meets preset driving performance limits.

[0037] Step S20: If it is determined that the first driving status information meets the preset speed limit conditions, the speed of the hybrid vehicle is limited by the motor control unit.

[0038] For example, after obtaining the first driving status information, the first driving status information can be compared with the preset speed limit conditions to determine whether the first driving status information meets the preset speed limit conditions. If it is determined that the first driving status information meets the preset speed limit conditions, since the hybrid vehicle is usually driven by the drive motor when driving at low speed, the speed of the hybrid vehicle is controlled at the preset speed limit value by the motor control unit to remind the user to handle the fault in time. The preset speed limit value can be set according to the actual situation. This embodiment does not limit it. For example, it can be 20km / h. The preset speed limit condition is used to ensure vehicle driving safety. That is, when the first driving state information meets the preset speed limit condition, limiting the vehicle speed can ensure vehicle driving safety. When the first driving state information does not meet the preset speed limit condition, limiting the vehicle speed may not ensure vehicle driving safety. Therefore, speed limit can be omitted. Alternatively, the vehicle driving state can be adjusted, and speed limit can be applied after the vehicle driving state information meets the preset speed limit condition. The specific speed limit condition can be determined based on big data, real vehicle test data, etc. This embodiment does not impose any restrictions on this.

[0039] Optionally, after the step of limiting the speed of the hybrid vehicle via the motor control unit, the method further includes:

[0040] Step S30: Obtain the second driving state information of the hybrid vehicle;

[0041] In this embodiment, it should be noted that after the speed limit of the hybrid vehicle is applied, the system can continuously monitor whether the user has resolved the emission fault. Before the user resolves the emission fault, driving performance restriction commands will be generated continuously or at intervals, thus allowing the driving performance restriction commands to be detected continuously or at intervals. After the user resolves the emission fault, the exhaust emissions of the hybrid vehicle under normal use meet the National VI emission standards for motor vehicles, so driving performance restrictions are not required. Therefore, the system can monitor whether the user has resolved the emission fault, and once it is detected that the user has resolved the emission fault, the speed limit of the hybrid vehicle can be lifted in a timely manner, so that the hybrid vehicle can return to normal driving status in a timely manner, avoiding the impact of the speed limit on the user's normal vehicle use and improving user satisfaction.

[0042] For example, after limiting the speed of the hybrid vehicle, driving performance limitation commands can be detected continuously or at intervals. If no driving performance limitation command is detected within a preset command monitoring time, the current second driving state information of the hybrid vehicle is obtained. The second driving state information may be the same as or different from the first driving state information, and can be determined based on big data, real vehicle test data, etc. This embodiment does not impose any restrictions on this. If a driving performance limitation command is detected within the preset command monitoring time, it indicates that the emission fault has not been resolved, so the current speed limit can be maintained.

[0043] Step S40: If it is determined that the second driving status information meets the preset speed limit release conditions, the speed limit is released.

[0044] For example, after obtaining the second driving status information, the second driving status information can be compared with a preset speed limit release condition to determine whether the second driving status information meets the preset speed limit release condition. If it is determined that the second driving status information meets the preset speed limit release condition, the speed limit on the hybrid vehicle is released. Since the speed limit controls the vehicle speed to a relatively low level, suddenly releasing the speed limit could cause the vehicle to accelerate suddenly, potentially leading to safety issues. The preset speed limit release condition is used to ensure vehicle driving safety. That is, if the second driving status information meets the preset speed limit release condition, releasing the speed limit can ensure vehicle driving safety; if the second driving status information does not meet the preset speed limit release condition, releasing the speed limit may not guarantee vehicle driving safety.

[0045] Optionally, the second driving status information includes a second current vehicle speed and a second vehicle controller status. The step of releasing the speed limit when the second driving status information meets the preset speed limit release conditions includes:

[0046] Step S41: Determine whether each of the second driving status information meets the preset speed limit release condition, wherein the preset speed limit condition includes: the second current vehicle speed is a preset target vehicle speed and the first vehicle controller status information matches the vehicle controller status information that has completed hibernation.

[0047] Step S42: When it is determined that the second current vehicle speed is the preset target vehicle speed and the status information of the first vehicle controller matches the status information of the vehicle controller that has completed hibernation, the speed of the hybrid vehicle is limited by the motor control unit.

[0048] In this embodiment, to avoid potential safety issues caused by a sudden increase in vehicle speed due to the removal of the speed limit, the speed limit can be removed only when the hybrid vehicle is restarted.

[0049] For example, after obtaining the second driving status information, the second driving status information can be compared with preset speed limit release conditions, wherein the preset speed limit conditions include: the second current vehicle speed is a preset target vehicle speed and the first vehicle controller status information matches the vehicle controller status information that has completed dormancy; it is determined whether the second driving status information meets the preset speed limit release conditions, that is, whether the second current vehicle speed is a preset target vehicle speed and whether the first vehicle controller status information matches the vehicle controller status information that has completed dormancy; if it is determined that the second current vehicle speed is a preset target vehicle speed and the first vehicle controller status information matches the vehicle controller status information that has completed dormancy, the speed limit on the hybrid vehicle is released.

[0050] In one feasible approach, the preset target vehicle speed can be 0 km / h.

[0051] In one feasible approach, refer to Figure 2 The driving performance limiting method includes the following steps: After the vehicle is running, the OBD system detects whether a severe driving performance limiting condition is activated. If the OBD system detects that a severe driving performance limiting condition is activated, a vehicle speed limiting command is sent through the engine control unit. Then, the vehicle electronic control unit determines whether to implement driving performance limiting based on the vehicle's current operating state. If it is determined that driving performance is not limited, the process returns to the step of detecting whether a severe driving performance limiting condition is activated through the OBD system. If it is determined that driving performance is limited, a speed limiting command is sent to the drive motor control unit through the vehicle electronic control unit. The drive motor control unit executes the vehicle speed limit; then, the OBD system can detect whether the serious driving performance limitation can be lifted. If the OBD system detects that the serious driving performance limitation can be lifted, the engine control unit stops sending the vehicle speed limit command; then, the vehicle control unit can determine whether to lift the driving performance limitation based on the current operating status of the vehicle; if it is determined that the driving performance limitation should not be lifted, the drive motor control unit continues to execute the vehicle speed limit; if it is determined that the driving performance limitation should be lifted, the vehicle control unit stops sending the speed limit command to the drive motor control unit, and the drive motor control unit, having not received the speed limit command, will lift the vehicle speed limit.

[0052] In this embodiment, by responding to a driving performance limitation command, the first driving state information of the hybrid vehicle is obtained. This achieves the acquisition of the first driving state information of the hybrid vehicle before executing the driving performance limitation command. Then, by determining that the first driving state information meets the preset speed limit conditions, the motor control unit limits the speed of the hybrid vehicle. This achieves speed limitation of the hybrid vehicle based on its driving state, allowing the speed limit to be adjusted according to the vehicle state. At the lower speed after the speed limit, the hybrid vehicle is usually driven by the drive motor. Therefore, in the first driving state... When the information meets the preset speed limit conditions, the speed of the hybrid vehicle can be limited by the motor control unit, which can achieve limp driving of the hybrid vehicle. This overcomes the technical defect that when the hybrid vehicle is driven by the drive motor, even if the driving performance limiting function is activated and the engine fuel injection is controlled, the speed cannot be limited and limp driving cannot be achieved, thus failing to meet regulatory requirements. This provides a driving performance limiting method for hybrid vehicles that can achieve limp driving when driving performance limiting is required by regulations, so that the driving performance limiting function of the hybrid vehicle meets the requirements of the National VI Motor Vehicle Pollutant Emission Standard.

[0053] Example 2

[0054] Furthermore, referring to Figure 3 Based on the above embodiments of this application, in the second embodiment of this application, the same or similar content as the above embodiments can be referred to the above description, and will not be repeated hereafter. On this basis, the first driving state information includes the power battery charge, the first current vehicle speed, and the first vehicle controller state information. The step of limiting the speed of the hybrid vehicle through the motor control unit when it is determined that the first driving state information meets the preset speed limit conditions includes:

[0055] Step S21: Determine whether each of the first driving status information meets the preset vehicle speed limit conditions, wherein the preset vehicle speed limit conditions include: the power battery charge is within a preset charge range, the first current vehicle speed is a preset target vehicle speed, and the first vehicle controller status information matches the vehicle controller status information that has completed hibernation.

[0056] In this embodiment, it should be noted that compared to pure electric vehicles or pure gasoline vehicles, the driving method of hybrid vehicles is more complex, and can include pure electric drive, pure gasoline drive, and hybrid drive, etc. Hybrid drive can further include joint drive by the engine and drive motor, or the engine charging the power battery, etc. Therefore, it can be seen that when limiting the driving performance of hybrid vehicles, not only the engine performance but also the power battery performance needs to be considered. The power battery charge is always a key factor affecting vehicle safety and user satisfaction. If the power battery charge is insufficient during hybrid vehicle operation, the vehicle may be unable to complete its journey. Limiting the speed of the vehicle in this situation will only make the journey more difficult, causing inconvenience to users and traffic, and may even lead to safety accidents. The National VI emission standard for motor vehicles also states that driving safety takes precedence over driving performance limits. Therefore, when limiting the speed of hybrid vehicles, it is necessary to consider whether the power battery charge is sufficient for safe vehicle operation. On the other hand, if a speed limit is suddenly imposed while the vehicle is in motion, for example, if the vehicle is originally traveling at 80 km / h and the speed is suddenly reduced to 20 km / h, it is easy to cause safety accidents and cause discomfort to the driver. Therefore, the speed limit can be imposed after the hybrid vehicle restarts. The starting speed of the vehicle after restarting will also be lower, thus avoiding discomfort to the driver and improving driving safety.

[0057] For example, after obtaining the first driving status information, the first driving status information can be compared with the preset vehicle speed limit conditions to determine that the power battery charge is within the preset charge range, the first current vehicle speed is the preset target vehicle speed, and the first vehicle controller status information matches the vehicle controller status information that has completed hibernation.

[0058] Step S22: When it is determined that the power battery charge is within a preset charge range, the first current vehicle speed is a preset target vehicle speed, and the first vehicle controller status information matches the vehicle controller status information that has completed hibernation, the speed of the hybrid vehicle is limited by the motor control unit.

[0059] For example, when it is determined that the power battery charge is within a preset charge range, the first current vehicle speed is a preset target vehicle speed, and the first vehicle controller status information matches the vehicle controller status information after it has completed hibernation, since hybrid vehicles are usually driven by the drive motor when traveling at low speeds, the motor control unit controls the speed of the hybrid vehicle at a preset speed limit to remind the user to handle the fault in a timely manner. The preset speed limit can be set according to the actual situation, and this embodiment does not limit it; for example, it can be 20 km / h. The preset charge range and the preset target vehicle speed can be determined based on big data, real vehicle test data, etc., and this embodiment does not limit them.

[0060] Optionally, after the step of determining whether each of the first driving state information meets the preset speed limit conditions, the method further includes:

[0061] Step S231: If it is determined that the power battery charge is higher than the upper limit of the preset charge range, the driving mode of the hybrid vehicle is adjusted to pure electric driving mode.

[0062] Step S232: Return to the step of obtaining the first driving state information of the hybrid vehicle.

[0063] In this embodiment, it should be noted that when the power battery charge is within a preset range, the power battery charge may be quickly depleted. To ensure normal vehicle operation, the engine can be activated under preset conditions, within the limits of permitted emissions, to supplement driving force or charge the power battery. Conversely, when the power battery charge is high enough to support pure electric drive for a certain period, the engine can be shut off to minimize emissions. Furthermore, since the battery charge is constantly fluctuating during vehicle operation and replenished during charging, it is necessary to continuously acquire the latest first driving state information and monitor its changes to adaptively adjust the vehicle speed limit strategy.

[0064] For example, after obtaining the first driving status information, the first driving status information can be compared with preset speed limit conditions to determine if the power battery charge is within a preset charge range, the first current vehicle speed is a preset target speed, and the first vehicle controller status information matches the vehicle controller status information that has completed dormancy. If the charge level is determined to be higher than the preset charge range limit, regardless of whether the first current vehicle speed is the preset target speed or whether the first vehicle controller status information matches the vehicle controller status information that has completed dormancy, the engine can be stopped, and the hybrid vehicle's driving mode can be adjusted to pure electric driving mode. This stops exhaust emissions and minimizes emissions. When the hybrid vehicle is running in pure electric driving mode, the step of obtaining the first driving status information of the hybrid vehicle is returned to further monitor the first driving status information of the hybrid vehicle, thereby adaptively adjusting the speed limit strategy.

[0065] Optionally, after the step of determining whether each of the first driving state information meets the preset speed limit conditions, the method further includes:

[0066] Step S241: If it is determined that the power battery charge is lower than the preset lower limit of the power range, the power battery of the hybrid vehicle is charged by the engine of the hybrid vehicle.

[0067] Step S242: If the power battery charge is detected to be higher than the preset charging limit, return to the step of obtaining the first driving status information of the hybrid vehicle, wherein the preset charging limit is higher than the lower limit of the preset charge range.

[0068] In this embodiment, it should be noted that when the power battery charge is below a preset lower limit, the low charge may not be sufficient to support the hybrid vehicle's journey and could even lead to a safety accident. In this case, charging the power battery via the engine can improve driving safety and provide convenience for the user. Furthermore, since the battery charge is constantly consumed during vehicle operation and replenished during charging, the charge level is constantly changing. Therefore, it is necessary to continuously acquire the latest first driving state information and monitor whether this information changes, thereby adaptively adjusting the vehicle speed limit strategy.

[0069] For example, after obtaining the first driving status information, the first driving status information can be compared with preset speed limit conditions to determine that the power battery charge is within a preset charge range, the first current vehicle speed is a preset target speed, and the first vehicle controller status information matches the vehicle controller status information that has completed dormancy. If the charge level is determined to be below the preset charge range's upper limit, regardless of whether the first current vehicle speed is the preset target speed or whether the first vehicle controller status information matches the vehicle controller status information that has completed dormancy, stopping the engine or imposing speed limits may result in the trip being unable to be completed and could lead to a safety accident. In this case, to ensure vehicle driving safety, it is necessary to use the hybrid vehicle's engine to power the... The hybrid vehicle's power battery is charged, and the battery level is continuously monitored to ensure it does not exceed a preset charging limit. This preset charging limit is higher than the lower limit of a preset battery level range. For example, if the preset battery level range is 30%-90%, the preset charging limit could be 40%. Thus, after charging the battery to 40%, 10% of the battery capacity is sufficient to complete the journey. If the journey cannot be completed, the battery can be recharged. Compared to directly charging to a higher level, this method of charging in small amounts multiple times effectively reduces emissions. For example, in a comparative scheme, charging to 90% requires 15% of the battery capacity to complete the journey, requiring 50% charging. However, the scheme in this embodiment only requires 20% charging, thus reducing emissions. When the battery level is detected to be higher than the preset charging limit, the hybrid vehicle's power battery has sufficient charge to support safe driving within a certain timeframe. In this case, the process returns to the step of obtaining the first driving state information of the hybrid vehicle, further monitoring this information to adaptively adjust the vehicle speed limit strategy.

[0070] In this embodiment, different speed limit strategies are set based on the power battery charge level, which allows hybrid vehicles to reduce emissions while ensuring safety. When the power battery charge level is high, emissions can be reduced to the maximum extent. When the power battery charge level is moderate, limp driving can be achieved through speed limits. When the power battery charge level is low, vehicle driving safety is prioritized, and emissions are reduced only after the power battery charge level is increased, which is legal and compliant.

[0071] Example 3

[0072] Furthermore, embodiments of this application also provide a vehicle driving performance limiting device, referring to... Figure 4 The vehicle driving performance limiting device includes:

[0073] The acquisition module is used to acquire the first driving state information of the hybrid vehicle in response to a driving performance limitation command;

[0074] The speed limit module is used to limit the speed of the hybrid vehicle through the motor control unit when it is determined that the first driving state information meets the preset speed limit conditions.

[0075] Optionally, the first driving status information includes the power battery charge, the first current vehicle speed, and the first vehicle controller status information. The vehicle speed limiting module is further used for:

[0076] Determine whether each of the first driving status information meets the preset vehicle speed limit conditions, wherein the preset vehicle speed limit conditions include: the power battery charge is within a preset charge range, the first current vehicle speed is a preset target vehicle speed, and the first vehicle controller status information matches the vehicle controller status information that has completed hibernation.

[0077] When it is determined that the power battery charge is within a preset charge range, the first current vehicle speed is a preset target vehicle speed, and the first vehicle controller status information matches the vehicle controller status information that has completed hibernation, the speed of the hybrid vehicle is limited by the motor control unit.

[0078] Optionally, after determining whether each of the first driving state information meets the preset speed limit conditions, the vehicle driving performance limiting device further includes a drive mode adjustment module, which is used to:

[0079] If it is determined that the power battery charge is higher than the upper limit of a preset charge range, the driving mode of the hybrid vehicle is adjusted to pure electric driving mode.

[0080] Return to the step of obtaining the first driving status information of the hybrid vehicle.

[0081] Optionally, after determining whether each of the first driving state information meets the preset speed limit conditions, the vehicle driving performance limiting device further includes a charging module, the charging module being used for:

[0082] If the power battery charge is determined to be lower than the preset lower limit of the power range, the power battery of the hybrid vehicle is charged by the engine of the hybrid vehicle.

[0083] If the power battery charge is detected to be higher than a preset charging limit, the process returns to the step of obtaining the first driving status information of the hybrid vehicle, wherein the preset charging limit is higher than the lower limit of the preset charge range.

[0084] Optionally, after the operation of limiting the speed of the hybrid vehicle via the motor control unit, the vehicle driving performance limiting device further includes a speed limit release module, which is used to:

[0085] If no driving performance limitation command is detected within the preset command monitoring time, the second driving state information of the hybrid vehicle is obtained;

[0086] If the second driving status information is determined to meet the preset speed limit release conditions, the speed limit is released.

[0087] Optionally, the vehicle speed limit release module is further configured to:

[0088] Determine whether each of the second driving status information meets the preset speed limit release conditions, wherein the preset speed limit conditions include: the second current vehicle speed is a preset target vehicle speed and the first vehicle controller status information matches the vehicle controller status information that has completed hibernation;

[0089] When the second current vehicle speed is determined to be the preset target vehicle speed and the status information of the first vehicle controller matches the status information of the vehicle controller that has completed its hibernation, the speed of the hybrid vehicle is limited by the motor control unit.

[0090] Optionally, prior to the operation of acquiring the first driving state information of the hybrid vehicle in response to the driving performance limiting command, the vehicle driving performance limiting device further includes a command generation module, the command generation module being used to:

[0091] Obtain the emission status data of the hybrid vehicle;

[0092] If the emission status data is determined to meet the preset driving performance limit conditions, a driving performance limit command is generated.

[0093] The vehicle driving performance limiting device provided by this invention, employing the vehicle driving performance limiting method in the above embodiments, solves the technical problem of the difficulty in achieving compliance with driving performance limiting functions for hybrid vehicles in related technologies. Compared with the prior art, the beneficial effects of the vehicle driving performance limiting device provided by this invention are the same as those of the vehicle driving performance limiting method provided in the above embodiments, and other technical features in this vehicle driving performance limiting device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0094] Example 4

[0095] Furthermore, embodiments of the present invention provide an electronic device, the electronic device comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the vehicle driving performance limiting method in the above embodiments.

[0096] The following is for reference. Figure 5 The diagram illustrates a structural schematic of an electronic device suitable for implementing embodiments of the present disclosure. The electronic devices in the embodiments of the present disclosure may include, but are not limited to, mobile terminals such as Bluetooth headsets, mobile phones, laptops, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 5 The electronic device shown is merely an example and should not be construed as limiting the functionality and scope of the embodiments disclosed herein.

[0097] like Figure 5 As shown, an electronic device may include a processing unit (such as a central processing unit, graphics processing unit, etc.) that can perform various appropriate actions and processes based on a program stored in read-only memory (ROM) or a program loaded from a storage device into random access memory (RAM). The RAM also stores various programs and arrays required for the operation of the electronic device. The processing unit, ROM, and RAM are interconnected via a bus. Input / output (I / O) interfaces are also connected to the bus.

[0098] Typically, the following systems can be connected to the I / O interface: input devices including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices including, for example, magnetic tapes, hard disks, etc.; and communication devices. Communication devices allow electronic devices to communicate wirelessly or wiredly with other devices to exchange arrays. Although electronic devices with various systems are shown in the figures, it should be understood that it is not required to implement or possess all the systems shown. More or fewer systems may be implemented alternatively.

[0099] In particular, according to embodiments of this disclosure, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this disclosure include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from a storage device, or installed from a ROM. When the computer program is executed by a processing device, it performs the functions defined above in the methods of embodiments of this disclosure.

[0100] The electronic device provided by this invention employs the vehicle driving performance limiting method in the above embodiments, solving the technical problem that the driving performance limiting function of hybrid vehicles is difficult to comply with in related technologies. Compared with the prior art, the beneficial effects of the electronic device provided by the embodiments of this invention are the same as the beneficial effects of the vehicle driving performance limiting method provided in the above embodiments, and other technical features in this electronic device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0101] It should be understood that various parts of this disclosure can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0102] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

[0103] Example 5

[0104] Furthermore, this embodiment provides a computer-readable storage medium having computer-readable program instructions stored thereon, the computer-readable program instructions being used to execute the vehicle driving performance limiting method in the above embodiment.

[0105] The computer-readable storage medium provided in this embodiment of the invention may be, for example, a USB flash drive, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination thereof.

[0106] The aforementioned computer-readable storage medium may be included in an electronic device or may exist independently without being assembled into an electronic device.

[0107] The aforementioned computer-readable storage medium carries one or more programs that, when executed by an electronic device, cause the electronic device to: in response to a driving performance limitation command, acquire first driving state information of the hybrid vehicle; and, if it is determined that the first driving state information meets preset speed limit conditions, limit the speed of the hybrid vehicle through a motor control unit.

[0108] Computer program code for performing the operations of this disclosure can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0109] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0110] The modules described in the embodiments of this disclosure can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0111] The computer-readable storage medium provided by this invention stores computer-readable program instructions for executing the above-described vehicle driving performance limiting method, thus solving the technical problem in the related art that the driving performance limiting function of hybrid vehicles is difficult to comply with regulations. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in the embodiments of this invention are the same as the beneficial effects of the vehicle driving performance limiting method provided in the above-described embodiments, and will not be repeated here.

[0112] Example 6

[0113] Furthermore, this application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the vehicle driving performance limiting method described above.

[0114] The computer program product provided in this application solves the technical problem of the difficulty in achieving compliance with the driving performance limiting function of hybrid vehicles in related technologies. Compared with the prior art, the beneficial effects of the computer program product provided in the embodiments of this invention are the same as the beneficial effects of the vehicle driving performance limiting method provided in the above embodiments, and will not be repeated here.

[0115] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent scope of this application.

Claims

1. A method for limiting vehicle driving performance, characterized in that, The vehicle driving performance limiting method is applied to hybrid vehicles and includes the following steps: In response to a driving performance limitation command, the first driving state information of the hybrid vehicle is obtained; If the first driving status information is determined to meet the preset speed limit conditions, the speed of the hybrid vehicle is limited by the motor control unit. The first driving status information includes the power battery charge, the first current vehicle speed, and the first vehicle controller status information. The step of limiting the speed of the hybrid vehicle through the motor control unit when the first driving status information meets the preset speed limit conditions includes: Determine whether each of the first driving status information meets the preset vehicle speed limit conditions, wherein the preset vehicle speed limit conditions include: the power battery charge is within a preset charge range, the first current vehicle speed is a preset target vehicle speed, and the first vehicle controller status information matches the vehicle controller status information that has completed hibernation. When it is determined that the power battery charge is within a preset charge range, the first current vehicle speed is a preset target vehicle speed, and the first vehicle controller status information matches the vehicle controller status information that has completed hibernation, the speed of the hybrid vehicle is limited by the motor control unit.

2. The vehicle driving performance limiting method as described in claim 1, characterized in that, After the step of determining whether each of the first driving state information meets the preset speed limit conditions, the method further includes: If it is determined that the power battery charge is higher than the upper limit of a preset charge range, the driving mode of the hybrid vehicle is adjusted to pure electric driving mode. Return to the step of obtaining the first driving status information of the hybrid vehicle.

3. The vehicle driving performance limiting method as described in claim 1, characterized in that, After the step of determining whether each of the first driving state information meets the preset speed limit conditions, the method further includes: If the power battery charge is determined to be lower than the preset lower limit of the power range, the power battery of the hybrid vehicle is charged by the engine of the hybrid vehicle. If the power battery charge is detected to be higher than a preset charging limit, the process returns to the step of obtaining the first driving status information of the hybrid vehicle, wherein the preset charging limit is higher than the lower limit of the preset charge range.

4. The vehicle driving performance limiting method as described in claim 1, characterized in that, After the step of limiting the speed of the hybrid vehicle through the motor control unit, the method further includes: If no driving performance limitation command is detected within the preset command monitoring time, the second driving state information of the hybrid vehicle is obtained; If the second driving status information is determined to meet the preset speed limit release conditions, the speed limit is released.

5. The vehicle driving performance limiting method as described in claim 4, characterized in that, The second driving status information includes a second current vehicle speed and a second vehicle controller status. The step of releasing the speed limit when the second driving status information meets the preset speed limit release conditions includes: Determine whether each of the second driving status information meets the preset speed limit release conditions, wherein the preset speed limit conditions include: the second current vehicle speed is a preset target vehicle speed and the first vehicle controller status information matches the vehicle controller status information that has completed hibernation; When the second current vehicle speed is determined to be the preset target vehicle speed and the status information of the first vehicle controller matches the status information of the vehicle controller that has completed its hibernation, the speed of the hybrid vehicle is limited by the motor control unit.

6. The vehicle driving performance limiting method as described in claim 1, characterized in that, Before the step of obtaining the first driving state information of the hybrid vehicle in response to the driving performance limitation command, the method further includes: Obtain the emission status data of the hybrid vehicle; If the emission status data is determined to meet the preset driving performance limit conditions, a driving performance limit command is generated.

7. A vehicle driving performance limiting device, characterized in that, The vehicle driving performance limiting device is applied to hybrid vehicles and includes: The acquisition module is used to acquire the first driving state information of the hybrid vehicle in response to a driving performance limitation command; The vehicle speed limiting module is used to limit the speed of the hybrid vehicle through the motor control unit when it is determined that the first driving state information meets the preset vehicle speed limit conditions. The first driving status information includes the power battery charge, the first current vehicle speed, and the first vehicle controller status information. The vehicle speed limiting module is also used for: Determine whether each of the first driving status information meets the preset vehicle speed limit conditions, wherein the preset vehicle speed limit conditions include: the power battery charge is within a preset charge range, the first current vehicle speed is a preset target vehicle speed, and the first vehicle controller status information matches the vehicle controller status information that has completed hibernation. When it is determined that the power battery charge is within a preset charge range, the first current vehicle speed is a preset target vehicle speed, and the first vehicle controller status information matches the vehicle controller status information that has completed hibernation, the speed of the hybrid vehicle is limited by the motor control unit.

8. An electronic device, characterized in that, The electronic device includes: At least one processor; and, A memory communicatively connected to the at least one processor; wherein, The memory stores instructions executable by the at least one processor, which, when executed by the at least one processor, enables the at least one processor to perform the steps of the vehicle driving performance limiting method according to any one of claims 1 to 6.

9. A storage medium, characterized in that, The storage medium is a computer-readable storage medium, and the computer-readable storage medium stores a program for implementing the vehicle driving performance limiting method, the program for implementing the vehicle driving performance limiting method being executed by a processor to implement the steps of the vehicle driving performance limiting method as described in any one of claims 1 to 6.

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