A vehicle control method and device

Abstract

The present invention discloses a vehicle control method and device, which are used to solve the problem that the acceleration command cannot be responded to when the vehicle is idling. The method includes: obtaining the current vehicle speed, current gear, current road condition information and current clutch state in the current vehicle information; determining the maximum speed limit value based on the speed limit value in the current road condition information and the speed limit value in the vehicle configuration information; when the current vehicle speed is not less than the maximum speed limit value and an acceleration command is received, if the current gear is in neutral or the current clutch state is in the disengaged state, that is, when idling, then determine the minimum torque among the maximum torque in the vehicle configuration information and the torque corresponding to the acceleration command as the target torque, and control the vehicle based on the target torque. Since the maximum torque in the vehicle configuration information usually far exceeds the maximum torque that may be reached during driving, the acceleration command can be responded to for acceleration when idling.

Description

Technical Field

[0001] The present invention relates to the field of vehicle control, and particularly to a vehicle control method and device. Background Art

[0002] Currently, for the sake of safety, a maximum speed limit function is enabled for special vehicles such as heavy-duty or hazardous chemical vehicles. For example, a vehicle for loading hazardous chemicals controls the maximum vehicle speed at 80 km / h through an Electronic Control Unit (ECU).

[0003] During road operation, for example, when going downhill slowly, the driver may put the vehicle in neutral to make the vehicle coast. At this time, the engine runs at idle speed. However, due to potential energy, the vehicle speed will become higher and higher and may reach or exceed the set maximum speed. Further, when the road conditions change and the driver wants to shift to a suitable gear to drive, for the smoothness of gear shifting, to reduce gear shifting impact and clutch wear, it is necessary to step on the accelerator first to raise the engine speed to near the speed matching the current vehicle speed and the intended gear. If the vehicle speed has reached or exceeded the maximum speed at this time, due to the speed limit of the ECU, the acceleration command to raise the speed from idle speed by stepping on the accelerator will not be responded to.

[0004] Therefore, how to make the vehicle acceleration command be responded to when the vehicle is running at idle speed is an urgent problem to be solved currently. Summary of the Invention

[0005] The present invention provides a vehicle control method and device to solve the problem that the vehicle acceleration command cannot be responded to when the vehicle is running at idle speed in the prior art.

[0006] In a first aspect, an embodiment of the present invention provides a vehicle control method, and the method includes:

[0007] Obtain current vehicle information; wherein, the current vehicle information includes current vehicle speed, current gear, current road condition information, and current clutch state;

[0008] Determine a maximum speed limit value based on the speed limit value in the current road condition information and the speed limit value in the vehicle configuration information;

[0009] When the current vehicle speed is not less than the maximum speed limit value and an acceleration command is received, if the current gear is in neutral or the current clutch state is in a disengaged state, determine the minimum torque of a first torque and a second torque as the target torque; wherein, the first torque is the maximum torque in the vehicle configuration information, and the second torque is the torque corresponding to the acceleration command;

[0010] Control the vehicle to travel based on the target torque.

[0011] In a possible implementation, the method further includes:

[0012] When the current vehicle speed is not less than the maximum speed limit value and the acceleration instruction is received, if the current gear is not in neutral and the current clutch state is in a closed state, determine the minimum torque between the third torque and the second torque as the target torque; wherein, the third torque is the torque corresponding to the maximum speed limit value.

[0013] In a possible implementation, before controlling the vehicle to travel based on the target torque, it further includes:

[0014] Determine that the target torque is not greater than the corrected torque; wherein, the corrected torque is the torque obtained by simulating driving based on the current road condition information.

[0015] In a possible implementation, the method further includes:

[0016] If the target torque is greater than the corrected torque, control the vehicle to travel based on the corrected torque.

[0017] In a possible implementation, the current vehicle information further includes the rear axle ratio and the current engine power, and the corrected torque is determined by the following method:

[0018] Based on the current road condition information and the current vehicle information, perform simulated driving to determine the simulated gear;

[0019] Determine the transmission ratio based on the simulated gear;

[0020] Based on the current vehicle speed, the transmission ratio, the current rear axle ratio and the tire radius, determine the corrected rotational speed, and determine the corrected torque based on the corrected rotational speed and the current engine power.

[0021] In a second aspect, an embodiment of the present invention provides a vehicle control device, and the device includes:

[0022] An acquisition module, configured to acquire current vehicle information; wherein, the current vehicle information includes the current vehicle speed, the current gear, the current road condition information and the current clutch state;

[0023] A first determination module, configured to determine the maximum speed limit value based on the speed limit value in the current road condition information and the speed limit value in the vehicle configuration information;

[0024] A second determination module, configured to, when the current vehicle speed is not less than the maximum speed limit value and an acceleration instruction is received, if the current gear is in neutral or the current clutch state is in a disengaged state, determine the minimum torque of the first torque and the second torque as the target torque; wherein, the first torque is the maximum torque in the vehicle configuration information, and the second torque is the torque corresponding to the acceleration instruction.

[0025] A control module, configured to control the vehicle to travel based on the target torque.

[0026] In a possible implementation manner, the device further includes:

[0027] A third determination module, configured to, when the current vehicle speed is not less than the maximum speed limit value and the acceleration instruction is received, if the current gear is not in neutral and the current clutch state is in a closed state, determine the minimum torque of the third torque and the second torque as the target torque; wherein, the third torque is the torque corresponding to the maximum speed limit value.

[0028] In a possible implementation manner, the device further includes a fourth determination module:

[0029] The fourth determination module is configured to determine that the target torque is not greater than the corrected torque; wherein, the corrected torque is the torque obtained by simulating driving based on the current road condition information.

[0030] In a possible implementation manner, the control module is further configured to:

[0031] If the target torque is greater than the corrected torque, control the vehicle to travel based on the corrected torque.

[0032] In a possible implementation manner, the current vehicle information further includes a rear axle ratio and a current engine power, the device further includes a fifth determination module, and the fifth determination module determines the corrected torque through the following method:

[0033] Simulate driving based on the current road condition information and the current vehicle information to determine a simulated gear;

[0034] Determine a transmission ratio based on the simulated gear;

[0035] Determine a corrected rotational speed based on the current vehicle speed, the transmission ratio, the current rear axle ratio, and the tire radius, and determine the corrected torque based on the corrected rotational speed and the current engine power.

[0036] The beneficial effects of the present invention are as follows:

[0037] A vehicle control method and device disclosed by the present invention are used to solve the problem that the acceleration command cannot be responded to when the vehicle is idling. The method includes: obtaining the current vehicle speed, current gear, current road condition information, and current clutch state in the current vehicle information; determining the maximum speed limit value based on the speed limit value in the current road condition information and the speed limit value in the vehicle configuration information; when the current vehicle speed is not less than the maximum speed limit value and an acceleration command is received, if the current gear is in neutral or the current clutch state is in the disengaged state, that is, when idling, then determining the minimum torque among the maximum torque in the vehicle configuration information and the torque corresponding to the acceleration command as the target torque, and controlling the vehicle based on the target torque. Since the maximum torque in the vehicle configuration information usually far exceeds the maximum torque that may be reached during driving, it is possible to respond to the acceleration command to accelerate when idling. Further, since the target torque corresponds to one of the maximum torque in the vehicle configuration information, the torque corresponding to the acceleration command, and the torque corresponding to the maximum speed limit value, and the torques corresponding to these situations are relatively large and may exceed the driver's acceleration requirement, therefore, the present invention performs simulated driving calculation based on the current road condition information to correct the torque, and before controlling the vehicle to travel based on the target torque, determines whether the target torque is greater than the corrected torque. If the target torque is greater than the corrected torque, then controls the vehicle to travel based on the corrected torque. This prevents excessive rotation speed when the driver steps on the accelerator, resulting in waste of fuel consumption, and at the same time makes the input and output shaft speeds of the transmission as synchronous as possible, making the clutch engagement smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0039] Figure 1 It is a schematic flow chart of a vehicle control method provided by an embodiment of the present invention;

[0040] Figure 2 It is a specific schematic flow chart of a vehicle control method provided by an embodiment of the present invention;

[0041] Figure 3 It is a schematic flow chart of a method for obtaining a corrected torque provided by an embodiment of the present invention;

[0042] Figure 4 It is a schematic structural diagram of a vehicle control device provided by an embodiment of the present invention;

[0043] Figure 5 It is a schematic structural diagram of a vehicle control device provided by an embodiment of the present invention. Detailed Implementation Manner

[0044] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0045] Currently, for special vehicles such as heavy-duty or hazardous chemical vehicles, based on vehicle design or safety, a maximum vehicle speed limit function is set by the engine controller when the vehicle leaves the factory. When the actual vehicle speed approaches the set allowable vehicle speed, the engine gradually reduces power output (torque, fuel injection) to prevent the vehicle speed from exceeding the limit. For example, a vehicle used to load hazardous chemicals controls the maximum vehicle speed at 80 km / h through an Electronic Control Unit (ECU).

[0046] During road operation, for example, when going down a gentle slope, the driver puts the transmission in the neutral position, and the vehicle travels by inertia or road potential energy, that is, in a neutral coasting state. At this time, the engine runs at idle speed. However, due to potential energy, the vehicle speed will become higher and higher, and may reach or exceed the set maximum vehicle speed. Further, when the road conditions change and the driver wants to shift into a suitable gear to drive, for the smoothness of gear shifting and to reduce gear shifting impact and clutch wear, it is necessary to first step on the accelerator to raise the engine speed to near the speed matching the current vehicle speed and the intended gear. If the vehicle speed has reached or exceeded the maximum vehicle speed at this time, due to the limitation of the ECU on the vehicle speed, the acceleration command to raise the speed from idle speed by stepping on the accelerator at this time will not be responded to.

[0047] Therefore, how to make the vehicle acceleration command be responded to when the vehicle is running at idle speed is an urgent problem to be solved at present.

[0048] Based on the above problems, the embodiments of the present invention provide a vehicle control method and device to solve the problem that the vehicle acceleration command cannot be responded to when the vehicle is running at idle speed in the prior art.

[0049] Next, in combination with the above-described application scenarios, a vehicle control method provided by an exemplary embodiment of the present application will be described with reference to the accompanying drawings. It should be noted that the above application scenarios are only shown for the convenience of understanding the spirit and principle of the present application, and the embodiments of the present application are not limited in this regard.

[0050] As Figure 1 shown, it is a schematic flowchart of a vehicle control method provided by an embodiment of the present invention. The method includes:

[0051] Step 101, obtain current vehicle information.

[0052] It should be noted that the current vehicle information includes the current vehicle speed, the current gear position, the current road condition information, and the current clutch state.

[0053] Step 102: Determine the maximum speed limit value based on the speed limit value in the current road condition information and the speed limit value in the vehicle configuration information.

[0054] In a possible embodiment, the current road condition information can be obtained through a positioning system, and then the speed limit value of the road where the vehicle is located can be judged. Considering that special vehicles will enable the maximum vehicle speed limit function for safety reasons, for example, the vehicle used for loading hazardous chemicals controls the maximum vehicle speed to 80 km / h through the ECU, that is, there is a situation where the speed limit value in the vehicle configuration information is higher than the speed limit value of the road. In this case, for the consideration of road traffic safety, the maximum value of the speed limit value of the road is used as the maximum speed limit value. For example, when the vehicle is driving on Road A, the speed limit of Road A is 70 km / h, and the speed limit value in the vehicle configuration information is 80 km / h, then the maximum speed limit value is 80 km / h.

[0055] Similarly, there is also a situation where the speed limit value in the vehicle configuration information is lower than the speed limit value of the road. In this case, the vehicle cannot reach the maximum value of the speed limit of the road under its own power drive. Therefore, for practicality considerations, the maximum value of the speed limit value in the vehicle configuration information can be used as the maximum speed limit value. For example, when the vehicle is driving on Road B, the speed limit of Road B is 120 km / h, and the speed limit value in the vehicle configuration information is 80 km / h, then the maximum speed limit value is 80 km / h.

[0056] Step 103: When the current vehicle speed is not less than the maximum speed limit value and an acceleration instruction is received, if the current gear position is in neutral or the current clutch state is in the disengaged state, determine the minimum torque among the first torque and the second torque as the target torque.

[0057] It should be noted that the first torque is the maximum torque in the vehicle configuration information, the second torque is the torque corresponding to the acceleration instruction. In addition, the above acceleration instruction can be understood as the driver stepping on the accelerator pedal and sending an acceleration instruction to the engine through the electronic control unit.

[0058] Step 104: Control the vehicle to travel based on the target torque.

[0059] The present invention discloses a vehicle control method for solving the problem that the acceleration command cannot be responded to when the vehicle is idling. The method includes: obtaining the current vehicle speed, current gear, current road condition information, and current clutch state in the current vehicle information; determining the maximum speed limit value based on the speed limit value in the current road condition information and the speed limit value in the vehicle configuration information; when the current vehicle speed is not less than the maximum speed limit value and an acceleration command is received, if the current gear is in neutral or the current clutch state is in the disengaged state, that is, when idling, then determining the minimum torque of the maximum torque in the vehicle configuration information and the torque corresponding to the acceleration command as the target torque, and controlling the vehicle based on the target torque. Since the maximum torque in the vehicle configuration information usually far exceeds the maximum torque that may be reached during driving, the acceleration command can be responded to for acceleration when idling.

[0060] The following will describe the above vehicle control method in detail with specific embodiments:

[0061] As Figure 2 shown, it is a specific process schematic diagram of a vehicle control method provided by an embodiment of the present invention. The method includes:

[0062] Step 201, obtain the current vehicle information.

[0063] It should be noted that the current vehicle information further includes the rear axle ratio and the current engine power;

[0064] Step 202, determine the maximum speed limit value based on the speed limit value in the current road condition information and the speed limit value in the vehicle configuration information.

[0065] Step 203, determine whether the current vehicle speed is greater than or equal to the maximum speed limit value. If so, execute Step 204; otherwise, execute Step 201.

[0066] Step 204, determine whether an acceleration command is received. If so, execute Step 205; otherwise, execute Step 203.

[0067] Step 205, determine whether the current gear is not in neutral and the current clutch state is in the engaged state. If so, execute Step 206; otherwise, execute Step 207.

[0068] Step 206, determine the minimum torque of the third torque and the second torque as the target torque.

[0069] It should be noted that the third torque is the torque corresponding to the maximum speed limit value.

[0070] Step 207, determine the minimum torque of the first torque and the second torque as the target torque.

[0071] It should be noted that the first torque is the maximum torque in the vehicle configuration information, and the second torque is the torque corresponding to the acceleration command.

[0072] Step 208, control the vehicle to travel based on the target torque.

[0073] Furthermore, since the above-mentioned target torque corresponds to one of the maximum torque in the vehicle configuration information, the torque corresponding to the acceleration command, and the torque corresponding to the maximum speed limit value, the torques corresponding to these situations are relatively large and may exceed the driver's acceleration requirements. Therefore, the corrected torque can be calculated through simulated driving according to the current road condition information, and before controlling the vehicle to travel based on the target torque, it is necessary to determine whether the target torque is greater than the corrected torque. If the target torque is greater than the corrected torque, the vehicle is controlled to travel based on the corrected torque. This can prevent excessive engine speed when the driver steps on the accelerator, resulting in fuel consumption waste, and at the same time make the input and output shaft speeds of the transmission as synchronous as possible, making the clutch engagement smoother.

[0074] In a possible embodiment, the corrected torque can be calculated by the following method:

[0075] As Figure 3 shown, it is a schematic flowchart of a method for obtaining the corrected torque provided by an embodiment of the present invention. The method includes:

[0076] Step 301, perform simulated driving based on the current road condition information and the current vehicle information to determine the simulated gear.

[0077] In a possible embodiment, a Telematics-BOX (Tbox) installed with an Advanced Driving Assistance System (ADAS) map is installed on the vehicle. According to the current position of the vehicle, the Tbox outputs the current road condition information to the engine ECU, such as the road slope within a certain distance ahead.

[0078] The ECU obtains the road slope ahead of the vehicle based on the Tbox installed on the vehicle, and then can estimate the simulated gear of the driver according to the preset driving model. As shown in Table 1, it is a comparison table of the relationship between the simulated gear and the current vehicle speed provided by an embodiment of the present invention:

[0079] Current vehicle speed (km / h) ＞85 70 60 Simulated gear 12 11 10

[0080] Table 1

[0081] Step 302, determine the transmission ratio based on the simulated gear.

[0082] Step 303: Determine the corrected rotational speed based on the current vehicle speed, transmission ratio, current rear axle ratio, and tire radius, and determine the corrected torque based on the corrected rotational speed and the current engine power.

[0083] In a possible embodiment, the corrected rotational speed can be calculated by the following formula:

[0084]

[0085] where n represents the corrected rotational speed, v represents the current vehicle speed, i g represents the transmission ratio, i o represents the current rear axle ratio, r represents the tire radius, and 0.377 is the unit conversion coefficient generated during the unit conversion process of the above formula.

[0086] Therefore, by calculating the corrected torque through the above method, when the target torque is greater than the corrected torque, using the corrected torque to control the vehicle driving can reduce fuel consumption and save economic costs. At the same time, it can prevent the engine speed from being too high, make the speed of the accelerated vehicle as close as possible to the current vehicle speed, make the rotational speeds of the input and output shafts of the transmission as synchronous as possible, and make the clutch engagement smoother.

[0087] Based on the same inventive concept, the present invention also provides a vehicle control device, as Figure 4 shown, which is a schematic structural diagram of a vehicle control device provided by an embodiment of the present invention. The device includes an acquisition module 401, a first determination module 402, a second determination module 403, and a control module 404:

[0088] The acquisition module 401 is used to acquire current vehicle information; where the current vehicle information includes the current vehicle speed, the current gear position, the current road condition information, and the current clutch state;

[0089] The first determination module 402 is used to determine the maximum speed limit value based on the speed limit value in the current road condition information and the speed limit value in the vehicle configuration information;

[0090] The second determination module 403 is used to, when the current vehicle speed is not less than the maximum speed limit value and an acceleration instruction is received, if the current gear position is in neutral or the current clutch state is in the disengaged state, determine the minimum torque of the first torque and the second torque as the target torque; where the first torque is the maximum torque in the vehicle configuration information, and the second torque is the torque corresponding to the acceleration instruction;

[0091] The control module 404 is used to control the vehicle driving based on the target torque.

[0092] In a possible embodiment, the device further includes, in a possible embodiment, a third determination module 405:

[0093] A third determination module 405, configured to, when the current vehicle speed is not less than the maximum speed limit value and an acceleration instruction is received, if the current gear is not in neutral and the current clutch state is in a closed state, determine the minimum torque between the third torque and the second torque as the target torque; where the third torque is the torque corresponding to the maximum speed limit value.

[0094] In a possible embodiment, the device further includes a fourth determination module 406:

[0095] The fourth determination module 406 is configured to determine that the target torque is not greater than the corrected torque; where the corrected torque is the torque obtained by performing a simulated driving based on the current road condition information.

[0096] In a possible embodiment, the control module 404 is further configured to:

[0097] If the target torque is greater than the corrected torque, control the vehicle to travel based on the corrected torque.

[0098] In a possible embodiment, the current vehicle information further includes the rear axle ratio and the current engine power, and the device further includes a fifth determination module 407. The fifth determination module 407 determines the corrected torque through the following method:

[0099] Perform a simulated driving based on the current road condition information and the current vehicle information to determine the simulated gear;

[0100] Determine the transmission ratio based on the simulated gear;

[0101] Determine the corrected rotational speed based on the current vehicle speed, the transmission ratio, the current rear axle ratio, and the tire radius, and determine the corrected torque based on the corrected rotational speed and the current engine power.

[0102] Based on the same inventive concept, the present invention further provides a vehicle control device. As Figure 5 shown, it is a schematic structural diagram of a vehicle control device provided by an embodiment of the present invention. The device includes: a processor 501 and a memory 502. Among them, the memory 502 stores program codes, and the processor 501 can execute the program codes stored in the memory 502. The implementation of this device can refer to the implementation of the above vehicle control method, and the repeated parts will not be described again.

[0103] A vehicle control method and device disclosed by the present invention are used to solve the problem that the acceleration command cannot be responded to when the vehicle is idling. The method includes: obtaining the current vehicle speed, current gear, current road condition information, and current clutch state in the current vehicle information; determining the maximum speed limit value based on the speed limit value in the current road condition information and the speed limit value in the vehicle configuration information; when the current vehicle speed is not less than the maximum speed limit value and an acceleration command is received, if the current gear is in neutral or the current clutch state is in the disengaged state, that is, when idling, determine the minimum torque among the maximum torque in the vehicle configuration information and the torque corresponding to the acceleration command as the target torque, and control the vehicle based on the target torque. Since the maximum torque in the vehicle configuration information usually far exceeds the maximum torque that may be reached during driving, the vehicle can respond to the acceleration command to accelerate when idling. Further, since the target torque corresponds to one of the maximum torque in the vehicle configuration information, the torque corresponding to the acceleration command, and the torque corresponding to the maximum speed limit value, and the torques corresponding to these situations are relatively large and may exceed the driver's acceleration requirement. Therefore, the present invention performs simulated driving calculations based on the current road condition information to correct the torque, and before controlling the vehicle to travel based on the target torque, determines whether the target torque is greater than the corrected torque. If the target torque is greater than the corrected torque, the vehicle is controlled to travel based on the corrected torque. This prevents excessive engine speed when the driver steps on the accelerator, resulting in waste of fuel consumption, and at the same time makes the input and output shaft speeds of the transmission as synchronous as possible, making the clutch engagement smoother.

[0104] The present application is described above with reference to the block diagrams and / or flowcharts showing methods, apparatuses (systems) and / or computer program products according to embodiments of the present application. It should be understood that one block of the block diagrams and / or flowcharts and combinations of blocks in the block diagrams and / or flowcharts can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, and / or other programmable data processing devices to produce a machine, so that the instructions executed by the computer processor and / or other programmable data processing devices create a method for implementing the functions / actions specified in the blocks of the block diagrams and / or flowcharts.

[0105] Correspondingly, the present application can also be implemented by hardware and / or software (including firmware, resident software, microcode, etc.). Further, the present application can take the form of a computer program product on a computer-usable or computer-readable storage medium, which has computer-usable or computer-readable program code implemented in the medium, for use by an instruction execution system or in combination with an instruction execution system. In the context of the present application, a computer-usable or computer-readable medium can be any medium that can contain, store, communicate, transmit, or convey a program for use by or in combination with an instruction execution system, apparatus, or device.

[0106] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims

1. A vehicle control method, characterized in that, The method includes: Obtaining current vehicle information; wherein, the current vehicle information includes current vehicle speed, current gear position, current road condition information, and current clutch state; Determining a maximum speed limit value based on the speed limit value in the current road condition information and the speed limit value in the vehicle configuration information; When the current vehicle speed is not less than the maximum speed limit value and an acceleration instruction is received, if the current gear position is in neutral or the current clutch state is in the disengaged state, determining the minimum torque of a first torque and a second torque as the target torque; wherein, the first torque is the maximum torque in the vehicle configuration information, and the second torque is the torque corresponding to the acceleration instruction; When the current vehicle speed is not less than the maximum speed limit value and the acceleration instruction is received, if the current gear position is not in neutral and the current clutch state is in the engaged state, determining the minimum torque of a third torque and the second torque as the target torque; wherein, the third torque is the torque corresponding to the maximum speed limit value; Controlling the vehicle to travel based on the target torque.

2. The method according to claim 1, characterized in that, Before the controlling the vehicle to travel based on the target torque, it further includes: Determining that the target torque is not greater than a corrected torque; wherein, the corrected torque is a torque obtained by simulating driving based on the current road condition information.

3. The method according to claim 2, characterized in that, The method further includes: If the target torque is greater than the corrected torque, controlling the vehicle to travel based on the corrected torque.

4. The method according to claim 3, wherein The current vehicle information further includes the rear axle ratio and the current engine power, and the corrected torque is determined by the following method: Simulating driving based on the current road condition information and the current vehicle information to determine a simulated gear position; Determining a transmission ratio based on the simulated gear position; Determining a corrected rotational speed based on the current vehicle speed, the transmission ratio, the current rear axle ratio, and the tire radius, and determining the corrected torque based on the corrected rotational speed and the current engine power.

5. A vehicle control device, characterized in that, The device includes: An obtaining module, configured to obtain current vehicle information; wherein, the current vehicle information includes current vehicle speed, current gear position, current road condition information, and current clutch state; A first determining module, configured to determine a maximum speed limit value based on the speed limit value in the current road condition information and the speed limit value in the vehicle configuration information; A second determining module, configured to, when the current vehicle speed is not less than the maximum speed limit value and an acceleration instruction is received, if the current gear position is in neutral or the current clutch state is in the disengaged state, determine the minimum torque of a first torque and a second torque as the target torque; wherein, the first torque is the maximum torque in the vehicle configuration information, and the second torque is the torque corresponding to the acceleration instruction; A third determining module, configured to, when the current vehicle speed is not less than the maximum speed limit value and the acceleration instruction is received, if the current gear position is not in neutral and the current clutch state is in the engaged state, determine the minimum torque of a third torque and the second torque as the target torque; wherein, the third torque is the torque corresponding to the maximum speed limit value; A control module, configured to control the vehicle to travel based on the target torque.

6. The device according to claim 5, characterized in that The device further includes a fourth determining module: The fourth determination module is configured to determine that the target torque is not greater than the corrected torque; wherein, the corrected torque is the torque obtained by performing a simulated driving based on the current road condition information.

7. The device according to claim 6, characterized in that, The control module is further configured to: If the target torque is greater than the corrected torque, control the vehicle to travel based on the corrected torque.

8. The device according to claim 7, characterized in that, The current vehicle information further includes a rear axle ratio and a current engine power, and the device further includes a fifth determination module, and the fifth determination module determines the corrected torque by the following method: Perform a simulated driving based on the current road condition information and the current vehicle information to determine a simulated gear; Determine a transmission ratio based on the simulated gear; Determine a corrected rotational speed based on the current vehicle speed, the transmission ratio, the current rear axle ratio, and the tire radius, and determine the corrected torque based on the corrected rotational speed and the current engine power.

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