Vehicle speed limit control method and system, vehicle and storage medium

Abstract

The invention relates to the technical field of vehicle control, and discloses a vehicle speed limit control method and system, a vehicle and a storage medium. A designed vehicle supervision system responds to a target vehicle speed limit state set by a user for a target vehicle, generates a vehicle speed limit instruction, and sends the vehicle speed limit instruction to a vehicle-mounted network connection terminal corresponding to the target vehicle through a cloud end; when the vehicle-mounted network connection terminal judges that the speed limiting state of the target vehicle in the vehicle speed limiting instruction is inconsistent with the speed limiting state set by the current vehicle, the speed limiting state of the target vehicle is sent to a power domain controller of the target vehicle, and the power domain controller updates the speed limiting state of the target vehicle into the speed limiting state of the target vehicle. According to the method, the speed of the vehicle can be limited in time on line, the safety of vehicle assets can be guaranteed, the probability that the vehicle is illegally used after a dealer has an asset risk or violation is greatly reduced, meanwhile, the business trip time of personnel and the inventory workload are reduced, and the efficiency and timeliness of the safety guarantee of the vehicle assets are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle control, and in particular to a vehicle speed limit control method, system, vehicle and storage medium. Background Art

[0002] With the breakthrough of automobile technology and the reduction of cost, cars have gradually entered thousands of families. Accordingly, in order to expand sales, automobile manufacturers adopt the offline direct sales model. Under the direct sales model, in order to meet the urgent needs of end customers for vehicle delivery and help increase vehicle sales, the factory side arranges a large number of vehicles as pre-positioned resources in dealer stores. When dealers have difficulty in capital turnover or violate regulations, affecting the safety of pre-positioned vehicle assets, the way to place vehicles is still to use traditional methods such as manual offline inventory and locking vehicles, which are inefficient and there are risks that cannot be responded to in a timely manner. Summary of the invention

[0003] In view of this, the present invention provides a vehicle speed limit control method, system, vehicle and storage medium to solve the problem that when the safety of the front vehicle assets is affected, the vehicle placement method still uses traditional means such as manual offline inventory and vehicle locking, which is inefficient and there is a risk of untimely response.

[0004] In a first aspect, the present invention provides a vehicle speed limit control method, which is applied to an on-board network terminal of a target vehicle, the method comprising: responding to a vehicle speed limit instruction issued from the cloud, determining whether the target vehicle speed limit state in the vehicle speed limit instruction is consistent with the speed limit state set for the current vehicle, the vehicle speed limit instruction being generated by a vehicle supervision system in response to a user setting a target vehicle speed limit state for the target vehicle, and sent to the on-board network terminal corresponding to the target vehicle through the cloud; if the target vehicle speed limit state is inconsistent with the speed limit state set for the current vehicle, the target vehicle speed limit state is sent to the power domain controller of the target vehicle, so that the power domain controller updates the speed limit state of the target vehicle to the target vehicle speed limit state.

[0005] The vehicle speed limit control method provided by the present invention comprises the following steps: a vehicle supervision system responds to a target vehicle speed limit state set by a user for a target vehicle, generates a vehicle speed limit instruction, and sends the instruction to a vehicle-mounted network terminal corresponding to the target vehicle through the cloud; when the vehicle-mounted network terminal determines that the target vehicle speed limit state in the vehicle speed limit instruction is inconsistent with the speed limit state set for the current vehicle, the target vehicle speed limit state is sent to a power domain controller of the target vehicle; the power domain controller then updates the speed limit state of the target vehicle to the target vehicle speed limit state, thereby achieving online and timely completion of the speed limit of the vehicle, ensuring the safety of vehicle assets, greatly reducing the probability of vehicles being illegally misappropriated after asset risks or violations occur in dealers, and reducing the length of business trips, the workload of inventory and vehicle locking, and improving the efficiency and timeliness of vehicle asset safety assurance.

[0006] In an optional embodiment, the vehicle speed limit instruction is an instruction encrypted based on the identification code and terminal serial number corresponding to the target vehicle. Before determining whether the speed limit status of the target vehicle in the vehicle speed limit instruction is consistent with the speed limit status set for the current vehicle, the method also includes: decrypting the vehicle speed limit instruction using a preset decryption algorithm, and performing vehicle identity authentication and information security authentication on the decrypted vehicle speed limit instruction; if the authentication is successful, executing the step of determining whether the speed limit status of the target vehicle in the vehicle speed limit instruction is consistent with the speed limit status set for the current vehicle; if the authentication fails, sending a prompt message of authentication failure to the vehicle supervision system via the cloud.

[0007] The vehicle speed limit instruction designed by the present invention is an instruction encrypted based on the vehicle identification code and the terminal serial number. After the on-board network terminal receives the vehicle speed limit instruction, it is necessary to first decrypt the vehicle speed limit instruction and perform vehicle identity and information security authentication. Only after the authentication is passed, the local speed limit status is compared with the speed limit status of the target vehicle, realizing the one-vehicle-one-key correspondence, which can ensure the security of information instruction execution.

[0008] In an optional implementation, the method further includes: if the speed limit state of the target vehicle is consistent with the speed limit state set for the current vehicle, sending a prompt message to the vehicle supervision system via the cloud that the vehicle is in the target vehicle speed limit state.

[0009] If the vehicle-mounted network terminal of the present invention determines that the speed limit status of the target vehicle is consistent with the local speed limit status, it directly feeds back to the vehicle supervision system the information that the current vehicle is in the speed limit status of the target vehicle, so as to prompt the user, so that the user can understand the current speed limit status of each vehicle, thereby facilitating subsequent speed limit control of the vehicle.

[0010] In an optional embodiment, the method further includes: obtaining the speed limit status set for the current vehicle through the vehicle bus, the speed limit status set for the current vehicle being sent in real time by the power domain controller to the vehicle bus when the vehicle bus is in an active state; sending the speed limit status set for the current vehicle to the vehicle supervision system through the cloud, so that when the vehicle supervision system determines that the speed limit status of the corresponding vehicle currently stored in the system is inconsistent with the speed limit status set for the current vehicle, the vehicle speed limit instruction is sent to the on-board network terminal through the cloud, and the vehicle speed limit instruction includes at least the speed limit status of the corresponding vehicle currently stored in the system.

[0011] The present invention obtains the speed limit status currently set for the vehicle and compares it with the speed limit status of the corresponding vehicle set by the user in the vehicle supervision system. If there is inconsistency, the vehicle's speed limit status is updated to the speed limit status stored in the vehicle supervision system through the on-board network terminal and the power domain controller, ensuring that the vehicle's speed limit control is consistent with the user's speed limit requirements.

[0012] In an optional embodiment, the method also includes: in response to an unlocking code sent by the vehicle computer of the target vehicle, authenticating the unlocking code, wherein when the target vehicle is in an offline state, the vehicle supervision system calls the unlocking code of the target vehicle through the cloud and prompts the user, so that after the user enters the unlocking code on the vehicle computer, the vehicle computer sends it to the on-board network terminal, and the cloud stores the corresponding unlocking code generated after encryption based on the identification codes and terminal serial numbers corresponding to all vehicles respectively; if the unlocking code is authenticated, a speed limit release request is sent to the power domain controller, so that the power domain controller releases the speed limit state of the vehicle.

[0013] In the case of a vehicle being disconnected from the network, the vehicle supervision system of the present invention obtains an offline unlocking code through the cloud, and the factory personnel input the unlocking code into the vehicle computer of the target vehicle, which then sends the unlocking code to the on-board network terminal. Finally, the power domain controller releases the speed limit of the vehicle, thereby realizing speed limit control of the vehicle when the vehicle is disconnected from the network.

[0014] In a second aspect, the present invention provides a vehicle speed limit control method, which is applied to a power domain controller of a target vehicle, and the method includes: receiving a target vehicle speed limit status sent by a vehicle-mounted network terminal, and updating the speed limit status of the target vehicle to a target vehicle speed limit status, wherein the target vehicle speed limit status is sent to the power domain controller after the vehicle-mounted network terminal of the target vehicle responds to a vehicle speed limit instruction issued by the cloud, and when it is determined that the target vehicle speed limit status in the vehicle speed limit instruction is inconsistent with the speed limit status set for the current vehicle.

[0015] In an optional embodiment, updating the speed limit state of the target vehicle to the target vehicle speed limit state includes: obtaining the current vehicle power gear state; if the current vehicle power gear state is a vehicle power-off state, then the next time the vehicle power gear state is responded to as a vehicle power-on state, the successfully set target vehicle speed limit state is activated; if the current vehicle power gear state is not a vehicle power-off state, repeating the step of obtaining the current vehicle power gear state until the current vehicle power gear state is a vehicle power-off state.

[0016] The present invention can activate the speed limit state of the target vehicle only when the vehicle is switched from the OFF gear to the ON gear, thereby preventing the user from suddenly activating the speed limit during driving and affecting driving safety.

[0017] In a third aspect, the present invention provides a vehicle speed limit control system, comprising a vehicle supervision system, an on-board network terminal of a target vehicle and a power domain controller, wherein the vehicle supervision system generates a vehicle speed limit instruction in response to the user setting a target vehicle speed limit state for the target vehicle, and sends it to the on-board network terminal corresponding to the target vehicle through the cloud; the on-board network terminal of the target vehicle responds to the vehicle speed limit instruction issued by the cloud, and determines whether the target vehicle speed limit state in the vehicle speed limit instruction is consistent with the speed limit state set for the current vehicle; if the on-board network terminal of the target vehicle determines that the target vehicle speed limit state is inconsistent with the speed limit state set for the current vehicle, the target vehicle speed limit state is sent to the power domain controller of the target vehicle; the power domain controller of the target vehicle receives the target vehicle speed limit state sent by the on-board network terminal, and updates the speed limit state of the target vehicle to the target vehicle speed limit state.

[0018] The vehicle speed limit control system provided by the present invention, the vehicle supervision system responds to the target vehicle speed limit state set by the user for the target vehicle, generates a vehicle speed limit instruction, and sends it to the on-board network terminal corresponding to the target vehicle through the cloud. When the on-board network terminal determines that the target vehicle speed limit state in the vehicle speed limit instruction is inconsistent with the speed limit state set for the current vehicle, the target vehicle speed limit state is sent to the power domain controller of the target vehicle, and the power domain controller then updates the speed limit state of the target vehicle to the target vehicle speed limit state, so that the speed limit of the vehicle can be completed online in time, the safety of vehicle assets can be guaranteed, and the probability of vehicles being illegally misappropriated after asset risks or violations of dealers are encountered is greatly reduced. At the same time, the length of business trips for personnel, the workload of inventory and locking vehicles are reduced, and the efficiency and timeliness of vehicle asset safety protection are improved.

[0019] In a fourth aspect, the present invention provides a vehicle equipped with an on-board network terminal and a power domain controller, wherein the on-board network terminal includes a first controller, the first controller includes a first memory and a first processor, the first memory and the first processor are communicatively connected to each other, the first memory stores computer instructions, and the first processor executes the computer instructions to execute the vehicle speed limit control method of the first aspect or any corresponding embodiment thereof; the power domain controller includes a second controller, the second controller includes a second memory and a second processor, the second memory and the second processor are communicatively connected to each other, the second memory stores computer instructions, and the second processor executes the computer instructions to execute the vehicle speed limit control method of the second aspect or any corresponding embodiment thereof.

[0020] In a fifth aspect, the present invention provides a computer-readable storage medium having computer instructions stored thereon, the computer instructions being used to enable a computer to execute the vehicle speed limit control method of the first aspect or any corresponding embodiment thereof.

[0021] The vehicle speed limit control system provided by the present invention, the vehicle supervision system responds to the target vehicle speed limit state set by the user for the target vehicle, generates a vehicle speed limit instruction, and sends it to the on-board network terminal corresponding to the target vehicle through the cloud. When the on-board network terminal determines that the target vehicle speed limit state in the vehicle speed limit instruction is inconsistent with the speed limit state set for the current vehicle, the target vehicle speed limit state is sent to the power domain controller of the target vehicle, and the power domain controller then updates the speed limit state of the target vehicle to the target vehicle speed limit state, so that the speed limit of the vehicle can be completed online in time, the safety of vehicle assets can be guaranteed, and the probability of vehicles being illegally misappropriated after asset risks or violations of dealers are encountered is greatly reduced. At the same time, the length of business trips for personnel, the workload of inventory and locking vehicles are reduced, and the efficiency and timeliness of vehicle asset safety protection are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 is a schematic structural diagram of a vehicle speed limit control system according to an embodiment of the present invention;

[0024] Figure 2is a schematic diagram of the interaction of components in a vehicle speed limit control system according to an embodiment of the present invention;

[0025] Figure 3 : is a flowchart of a method for unlocking a speed limit of a vehicle offline according to an embodiment of the present invention.

[0026] Figure 4 is a schematic diagram of the interaction between various ports in a vehicle speed limit control system according to an embodiment of the present invention;

[0027] Figure 5 is an example flow chart of a vehicle speed limit control method according to an embodiment of the present invention;

[0028] Figure 6 is a structural example diagram of a vehicle according to an embodiment of the present invention;

[0029] Figure 7 Schematic diagram of the hardware structure of the controller according to the embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0031] The embodiment of the present invention provides a vehicle speed limit control system, such as Figure 1 As shown, the vehicle speed limit control system includes a vehicle supervision system 1, an on-board network terminal 2 of a target vehicle and a power domain controller 3, wherein the vehicle supervision system 1 generates a vehicle speed limit instruction in response to the user setting the target vehicle speed limit state for the target vehicle, and sends it to the on-board network terminal 2 corresponding to the target vehicle through the cloud; the on-board network terminal 2 of the target vehicle responds to the vehicle speed limit instruction issued by the cloud, and determines whether the target vehicle speed limit state in the vehicle speed limit instruction is consistent with the speed limit state set for the current vehicle; if the on-board network terminal 2 of the target vehicle determines that the target vehicle speed limit state is inconsistent with the speed limit state set for the current vehicle, the target vehicle speed limit state is sent to the power domain controller 3 of the target vehicle; the power domain controller 3 of the target vehicle receives the target vehicle speed limit state sent by the on-board network terminal 2, and updates the speed limit state of the target vehicle to the target vehicle speed limit state.

[0032] In the embodiment of the present invention, when a dealer encounters difficulties in capital turnover or violates regulations, which affects the safety of the front-end vehicle assets, the engineering personnel can set the target vehicle speed limit state of the target vehicle through the vehicle supervision system 1 after completing the approval of the vehicle speed limit request process. Different vehicles can be set with different speed limit states. The vehicle speed limit state not only indicates the state but also includes speed limit information. The speed limit state can be divided into several categories such as A / B / C, each category corresponds to a different speed limit. The speed limit information can also directly include specific information such as the target speed limit vehicle speed, which can be set according to the actual application scenario. For example, Figure 2 As shown, the vehicle supervision system 1 establishes communication with the cloud using the HTTPS protocol, and the cloud and the vehicle-mounted network terminal 2 of the target vehicle establish communication through 4G / 5G and other networks. After the user completes the speed limit state of the target vehicle, the vehicle supervision system 1 can generate a vehicle speed limit instruction in response to the user setting the target vehicle, and can send the vehicle speed limit instruction to the vehicle-mounted network terminal 2 of the target vehicle through the cloud, wherein the vehicle speed limit instruction includes at least the speed limit state of the target vehicle and the identification of the target vehicle, and the identification can be the vehicle identification number (VIN) corresponding to the target vehicle. The cloud can select the vehicle-mounted network terminal 2 corresponding to the target vehicle based on the vehicle identification code in the vehicle speed limit instruction, and send the vehicle speed limit instruction to the corresponding vehicle-mounted network terminal 2, which is only an example and not limited.

[0033] After receiving the vehicle speed limit instruction, the vehicle networking terminal 2 can determine whether the speed limit state of the target vehicle in the vehicle speed limit instruction is consistent with the speed limit state set for the current vehicle. There is no limitation on how the vehicle networking terminal 2 obtains the speed limit state set for the current vehicle. It can be to send a speed limit state acquisition request to the power domain controller 3 of the target vehicle through the bus (CAN / CANFD). The power domain controller 3 sends the speed limit state set for the current vehicle to the vehicle networking terminal 2 through the bus based on the speed limit state acquisition request. For example, if it is determined that the speed limit state of the target vehicle is inconsistent with the speed limit state set for the current vehicle, such as Figure 2 As shown, the on-board network terminal 2 can send the target vehicle speed limit status through the bus, and the bus routes the target vehicle speed limit status to the network segment where the power domain controller 3 is located. The power domain controller 3 responds to the target vehicle speed limit status, and updates the local speed limit status of the vehicle to the target vehicle speed limit status. After that, the local speed limit status after the setting is successful can be fed back to the on-board network terminal 2 through the bus. The on-board network terminal 2 then reports the local speed limit status updated by the power domain controller 3 and the execution result to the cloud. The cloud transparently transmits the execution result and the local speed limit status to the vehicle supervision system 1. The vehicle supervision system 1 stores the local speed limit status and prompts the operator by sending the execution result.

[0034] The vehicle speed limit control system provided by the present invention, the vehicle supervision system responds to the target vehicle speed limit state set by the user for the target vehicle, generates a vehicle speed limit instruction, and sends it to the on-board network terminal corresponding to the target vehicle through the cloud. When the on-board network terminal determines that the target vehicle speed limit state in the vehicle speed limit instruction is inconsistent with the speed limit state set for the current vehicle, the target vehicle speed limit state is sent to the power domain controller of the target vehicle, and the power domain controller then updates the speed limit state of the target vehicle to the target vehicle speed limit state, so that the speed limit of the vehicle can be completed online in time, the safety of vehicle assets can be guaranteed, and the probability of vehicles being illegally misappropriated after asset risks or violations of dealers are encountered is greatly reduced. At the same time, the length of business trips for personnel, the workload of inventory and locking vehicles are reduced, and the efficiency and timeliness of vehicle asset safety protection are improved.

[0035] Specifically, the vehicle speed limit instruction is an instruction encrypted based on the identification code corresponding to the target vehicle and the terminal serial number. Before determining whether the speed limit status of the target vehicle in the vehicle speed limit instruction is consistent with the speed limit status set for the current vehicle, the on-board network terminal 2 uses a preset decryption algorithm to decrypt the vehicle speed limit instruction, and performs vehicle identity authentication and information security authentication on the decrypted vehicle speed limit instruction; if the authentication is successful, the step of determining whether the speed limit status of the target vehicle in the vehicle speed limit instruction is consistent with the speed limit status set for the current vehicle is executed; if the authentication fails, a prompt message of authentication failure is sent to the vehicle supervision system 1 through the cloud.

[0036] The vehicle supervision system 1 (also known as the direct-operated supervision system) of the embodiment of the present invention, when generating a vehicle speed limit instruction based on the target vehicle speed limit status set by the user for the target vehicle, can be encrypted using a preset encryption algorithm based on the VIN identification code and the vehicle serial number of the target vehicle to generate an encrypted string containing the speed limit status of the target vehicle, that is, the encrypted vehicle speed limit instruction, thereby realizing a one-vehicle-one-key relationship and ensuring the security of information transmission. The encryption algorithm is not limited and can be a symmetric encryption algorithm, a sequence cipher, etc. After the on-board network terminal 2 receives the vehicle speed limit instruction issued by the vehicle supervision system 1 through the cloud, it can use the built-in decryption algorithm to decrypt the encrypted string , parse the vehicle speed limit instruction and perform vehicle identity and information security authentication. The authentication method can be to use the decryption algorithm to determine whether the decrypted information is in an information format executable by the on-board network terminal 2 and anti-tampering and anti-replay authentication. For example, if it is, it means the authentication is successful. If not, it means the authentication fails. The on-board network terminal 2 can feedback the prompt information of the authentication failure to the cloud. The prompt information of the authentication failure can be the error code information of "the vehicle does not support the instruction". For example; if the authentication is successful, the on-board network terminal 2 can wake up the vehicle network and execute the step of determining whether the speed limit status of the target vehicle is consistent with the speed limit status set for the current vehicle, that is, the local speed limit status.

[0037] The vehicle speed limit instruction designed by the present invention is an instruction encrypted based on the vehicle identification code and the terminal serial number. After the on-board network terminal receives the vehicle speed limit instruction, it is necessary to first decrypt the vehicle speed limit instruction and perform vehicle identity and information security authentication. Only after the authentication is passed, the local speed limit status is compared with the speed limit status of the target vehicle, realizing the one-vehicle-one-key correspondence, which can ensure the security of information instruction execution.

[0038] In an optional implementation, if the speed limit state of the target vehicle is consistent with the speed limit state set for the current vehicle, the vehicle-mounted network terminal 2 sends a prompt message to the vehicle supervision system 1 through the cloud that the vehicle is in the target vehicle speed limit state.

[0039] If the vehicle-mounted network terminal 2 of the embodiment of the present invention determines that the speed limit state of the target vehicle is consistent with the speed limit state set for the current vehicle, it can feedback the "error code that the vehicle is already in this state" to the cloud, and the vehicle supervision system 1 can prompt the user that the vehicle is in the target vehicle speed limit state.

[0040] If the vehicle-mounted network terminal of the present invention determines that the speed limit status of the target vehicle is consistent with the local speed limit status, it directly feeds back to the vehicle supervision system the information that the current vehicle is in the speed limit status of the target vehicle, so as to prompt the user, so that the user can understand the current speed limit status of each vehicle, thereby facilitating subsequent speed limit control of the vehicle.

[0041] Specifically, the power domain controller 3 updates the speed limit state of the target vehicle to the target vehicle speed limit state, including: obtaining the current vehicle power gear state; if the current vehicle power gear state is the whole vehicle power-off state, then the next time the vehicle power gear state is responded to as the whole vehicle power-on state, the successfully set target vehicle speed limit state will be activated; if the current vehicle power gear state is not the whole vehicle power-off state, repeat the step of obtaining the current vehicle power gear state until the current vehicle power gear state is the whole vehicle power-off state.

[0042] After the power domain controller 3 of the embodiment of the present invention updates the speed limit state of the target vehicle to the target vehicle speed limit state, but the speed limit state has not been activated, the current vehicle power gear state can be obtained. If the current vehicle power gear state is obtained to be the vehicle power-off state (that is, the vehicle power gear is OFF), then the next time the vehicle power is responded to as the vehicle power-on state, that is, the next time the vehicle is powered on (OFF→ON), the target vehicle speed limit state after the setting is successful is activated, and the updated vehicle local speed limit state can be sent to the vehicle-mounted network terminal 2 through the bus, or the power domain controller 3 can directly send the updated vehicle local speed limit state to the bus, and the vehicle-mounted network terminal 2 can directly obtain the vehicle local speed limit state on the bus, just as an example; if the power domain controller 3 determines that the current vehicle power gear state is not the vehicle power-off state, no matter what other state gear, it is necessary to wait for the vehicle state to switch from OFF gear to ON gear before activation.

[0043] After activating the vehicle speed limit status, the power domain controller 3 can also report the updated speed limit status and activation result to the vehicle networking terminal 2. The vehicle networking terminal 2 uploads the updated speed limit status and activation result to the vehicle supervision system 1 via the cloud, just as an example.

[0044] The present invention can activate the speed limit state of the target vehicle only when the vehicle is switched from the OFF gear to the ON gear, thereby preventing the user from suddenly activating the speed limit during driving and affecting driving safety.

[0045] In an optional implementation, the on-board network terminal 2 obtains the speed limit status set for the current vehicle through the vehicle bus; and sends the speed limit status set for the current vehicle to the vehicle supervision system 1 through the cloud, so that when the vehicle supervision system 1 determines that the speed limit status of the corresponding vehicle currently stored in the system is inconsistent with the speed limit status set for the current vehicle, the vehicle speed limit instruction is sent to the on-board network terminal 2 through the cloud, and the vehicle speed limit instruction at least includes the speed limit status of the corresponding vehicle currently stored in the system.

[0046] The speed limit state currently set for the vehicle is sent in real time by the power domain controller 3 to the vehicle bus when the vehicle bus is in an active state.

[0047] In the embodiment of the present invention, when the vehicle bus is in an active state, the power domain controller 3 will send the speed limit state currently set by the vehicle to the bus in real time, such as Figure 2As shown, the speed limit status currently set for the vehicle is sent to the gateway, and the on-board network terminal 2 can collect the speed limit status currently set for the vehicle on the gateway bus, and can transmit the speed limit status currently set for the vehicle to the vehicle supervision system 1 through the cloud for storage, wherein the vehicle supervision system 1 can compare whether the speed limit status currently set for the vehicle sent by the on-board network terminal 2 is consistent with the speed limit status of the corresponding vehicle currently stored in the system. If inconsistent, a vehicle speed limit instruction can be generated based on the speed limit status of the vehicle stored in the system, and sent to the on-board network terminal 2 through the cloud, and the on-board network terminal 2 sends it to the power domain controller 3, and the power domain controller 3 updates the speed limit status of the vehicle to the speed limit status of the sent vehicle, and completes the activation.

[0048] The present invention obtains the speed limit status currently set for the vehicle and compares it with the speed limit status of the corresponding vehicle set by the user in the vehicle supervision system. If there is inconsistency, the vehicle's speed limit status is updated to the speed limit status stored in the vehicle supervision system through the on-board network terminal and the power domain controller, ensuring that the vehicle's speed limit control is consistent with the user's speed limit requirements.

[0049] In an optional embodiment, when a vehicle rolls off the production line, the vehicle supervision system 1 can automatically generate the VIN and initial speed limit status of the vehicle (the default is no speed limit status). After leaving the factory, unsold vehicles can be configured one-to-one according to the needs of the marketing department. After the engineering personnel complete the operation process authorization, the speed limit status of the vehicle is changed in the vehicle supervision system 1. The vehicle supervision system 1 sends the changed target vehicle speed limit status to the on-board network terminal 2 through a remote control command. The on-board network terminal 2 converts the remote control command into a bus speed limit request signal and sends it to the power domain controller 3. The power domain controller 3 responds to the speed limit request and completes the speed limit of the vehicle.

[0050] In an optional embodiment, the on-board network terminal 2 responds to the unlocking code sent by the vehicle computer of the target vehicle to authenticate the unlocking code. When the target vehicle is in an offline state, the vehicle supervision system 1 calls the unlocking code of the target vehicle through the cloud and prompts the user, so that after the user enters the unlocking code on the vehicle computer, the vehicle computer sends it to the on-board network terminal 2. The cloud stores the corresponding unlocking code generated after encryption based on the identification code and terminal serial number corresponding to all vehicles respectively; if the unlocking code is authenticated, a speed limit release request will be sent to the power domain controller 3, so that the power domain controller 3 releases the speed limit state of the vehicle.

[0051] like Figure 3As shown, the vehicle-mounted network terminal 2 of the embodiment of the present invention can upload the vehicle's VIN and vehicle-side serial number TUID to the cloud each time the vehicle power gear is in the ON gear. The cloud can store the vehicle's VIN and vehicle-side serial number TUID. If the factory personnel have a speed limit requirement for the target vehicle, but the vehicle-mounted network terminal 2 and the cloud are disconnected, the vehicle supervision system 1 can send an offline unlocking code request to the cloud, wherein the offline unlocking code request includes the VIN code of the target vehicle. The cloud finds the VIN and TUID code of the corresponding vehicle based on the VIN code in the offline unlocking code request, and can use an encryption algorithm to generate a multi-digit offline unlocking code based on the vehicle's VIN code and TUID, wherein the multi-digit number can be set according to actual application requirements and is not limited. An 8-digit offline unlocking code can be set and sent to the vehicle supervision system 1. The factory personnel obtain the offline unlocking code through the vehicle supervision system 1 and can enter the unlocking code on the target vehicle's computer. The target vehicle's computer can pass the unlocking code to the vehicle-mounted network terminal 2 through the CAN / CANFD bus. The vehicle-mounted network terminal 2 authenticates the unlocking code. After the unlocking code is authenticated, the unlocking speed limit request can be sent to the power domain controller 3, and the power domain controller 3 releases the speed limit of the target vehicle; if the network between the vehicle-mounted network terminal 2 and the cloud is in a normal connection state, the instruction to release the speed limit of the vehicle is still sent to the vehicle-mounted network terminal 2 through the cloud. If the authentication of the unlocking code fails, an error code can be fed back to the vehicle computer, and the vehicle computer pops up a box to prompt the error code information, which is just an example.

[0052] In the case of a vehicle being disconnected from the network, the vehicle supervision system of the present invention obtains an offline unlocking code through the cloud, and the factory personnel input the unlocking code into the vehicle computer of the target vehicle, which then sends the unlocking code to the on-board network terminal. Finally, the power domain controller releases the speed limit of the vehicle, thereby realizing speed limit control of the vehicle when the vehicle is disconnected from the network.

[0053] The embodiment of the present invention also provides a vehicle speed limit control method, which is applied to Figure 1 The vehicle supervision system 1, the vehicle network terminal 2 and the power domain controller 3 shown in the figure, wherein Figure 4 As shown, the vehicle supervision system 1 is used to execute step S101, the vehicle-mounted network terminal 2 is used to execute steps S201 to S202, and the power domain controller 3 is used to execute step S301.

[0054] Step S101, in response to the user completing the setting of the target vehicle speed limit state for the target vehicle, a vehicle speed limit instruction is generated.

[0055] Step S102: Send the vehicle speed limit instruction to the vehicle-mounted network terminal of the target vehicle through the cloud.

[0056] Step S201, in response to the vehicle speed limit instruction sent from the cloud, determine whether the target vehicle speed limit state in the vehicle speed limit instruction is consistent with the speed limit state set for the current vehicle.

[0057] Step S202: If it is determined that the speed limit state of the target vehicle is inconsistent with the speed limit state set for the current vehicle, the speed limit state of the target vehicle is sent to the power domain controller of the target vehicle.

[0058] Step S301, receiving the speed limit status of the target vehicle sent by the vehicle-mounted network terminal, and updating the speed limit status of the target vehicle to the speed limit status of the target vehicle.

[0059] In a specific embodiment, Figure 5 As shown, after the user completes the approval of the vehicle speed limit request process, the user sends a vehicle speed limit instruction to the cloud through the vehicle supervision system, where the vehicle speed limit instruction is an encrypted string containing the target vehicle speed limit request. The cloud transmits the vehicle speed limit instruction to the on-board network terminal, and the on-board network terminal authenticates the vehicle speed limit instruction. If the authentication fails, the on-board network terminal feeds back an error code "the vehicle does not support the instruction" to the cloud. If the authentication passes, the on-board network terminal parses the vehicle speed limit instruction and compares the speed limit status set for the current vehicle with the speed limit status of the target vehicle. If the speed limit status set for the current vehicle is consistent with the speed limit status of the target vehicle, the on-board network terminal feeds back an error code "the vehicle is already in this state" to the cloud. If there is inconsistency, the vehicle-mounted network terminal can convert the vehicle speed limit instruction into a target vehicle speed limit request of the bus, and send the target vehicle speed limit status to the bus, and start the 5s timer. The gateway routes the target vehicle speed limit status to the network segment where the power domain controller is located. The power domain controller changes the target vehicle speed limit status to the set status, and determines whether the current vehicle power gear is in the OFF gear. If it is in the OFF gear, the vehicle speed limit function will be activated the next time the vehicle gear is switched to the ON gear. The power domain controller uploads the current vehicle speed limit status and the command execution result to the bus, and the vehicle-mounted network terminal reports the current vehicle speed limit status and the command execution result to the cloud, which is then forwarded to the vehicle supervision system. The vehicle supervision system stores the updated speed limit status of the vehicle and prompts the user of the command execution result. Please refer to the above embodiment for detailed description, which will not be repeated here.

[0060] The embodiment of the present invention further provides a vehicle, such as Figure 6 The vehicle is equipped with a vehicle-mounted network terminal and a power domain controller, wherein the vehicle-mounted network terminal and the power domain controller both include: Figure 7 The controller shown is used to execute the vehicle speed limit control method of the above embodiment.

[0061] See also Figure 7 , Figure 7 is a schematic diagram of the structure of a controller provided by an optional embodiment of the present invention, such as Figure 7 As shown, the controller includes: one or more processors 10, a memory 20, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. The various components are connected to each other using different buses for communication, and can be installed on a common mainboard or installed in other ways as needed. The processor can process instructions executed in the controller, including instructions stored in or on the memory to display graphical information of the GUI on an external input / output device (such as a display device coupled to the interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple controllers can be connected, and each device provides some necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Figure 7 A processor 10 is taken as an example.

[0062] The processor 10 may be a central processing unit, a network processor or a combination thereof. The processor 10 may further include a hardware chip. The hardware chip may be a dedicated integrated circuit, a programmable logic device or a combination thereof. The programmable logic device may be a complex programmable logic device, a field programmable gate array, a general purpose array logic or any combination thereof.

[0063] The memory 20 stores instructions executable by at least one processor 10, so that the at least one processor 10 executes the method shown in the above embodiment.

[0064] The memory 20 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required by at least one function; the data storage area may store data created according to the use of the controller, etc. In addition, the memory 20 may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some optional embodiments, the memory 20 may optionally include a memory remotely arranged relative to the processor 10, and these remote memories may be connected to the controller via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0065] The memory 20 may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a flash memory, a hard disk or a solid state drive; the memory 20 may also include a combination of the above types of memory.

[0066] The controller also includes an input device 30 and an output device 40. The processor 10, the memory 20, the input device 30 and the output device 40 may be connected via a bus or other means. Figure 7 The example of connecting through bus is taken in the following.

[0067] The input device 30 can receive input digital or character information and generate key signal input related to the user settings and function control of the controller, such as a touch screen, a keypad, a mouse, a track pad, a touch pad, an indicator bar, one or more mouse buttons, a trackball, a joystick, etc. The output device 40 may include a display device, an auxiliary lighting device (e.g., an LED) and a tactile feedback device (e.g., a vibration motor), etc. The above-mentioned display device includes but is not limited to a liquid crystal display, a light emitting diode, a display and a plasma display. In some optional embodiments, the display device can be a touch screen.

[0068] The embodiment of the present invention also provides a computer-readable storage medium. The method according to the embodiment of the present invention can be implemented in hardware, firmware, or can be implemented as a computer code that can be recorded in a storage medium, or can be implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and will be stored in a local storage medium through a network download, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state hard disk, etc.; further, the storage medium can also include a combination of the above types of memories. It can be understood that a computer, a processor, a microprocessor controller, or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor, or hardware, the method shown in the above embodiment is implemented.

[0069] A part of the present invention may be applied as a computer program product, such as a computer program instruction, which, when executed by a computer, can call or provide the method and / or technical solution according to the present invention through the operation of the computer. Those skilled in the art should understand that the existence of the computer program instruction in a computer-readable medium includes, but is not limited to, a source file, an executable file, an installation package file, etc., and accordingly, the way in which the computer program instruction is executed by the computer includes, but is not limited to: the computer directly executes the instruction, or the computer compiles the instruction and then executes the corresponding compiled program, or the computer reads and executes the instruction, or the computer reads and installs the instruction and then executes the corresponding installed program. Here, the computer-readable medium may be any available computer-readable storage medium or communication medium accessible to the computer.

[0070] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A vehicle speed limit control method, characterized in that: The vehicle-mounted network connection terminal applied to the target vehicle comprises: In response to the vehicle speed limit instruction issued by the cloud, determine whether the speed limit state of the target vehicle in the vehicle speed limit instruction is consistent with the speed limit state set for the current vehicle. The vehicle speed limit instruction is generated by the vehicle supervision system in response to the user setting the target vehicle speed limit state for the target vehicle, and sent to the vehicle-mounted network terminal corresponding to the target vehicle through the cloud; If the speed limit state of the target vehicle is inconsistent with the speed limit state set for the current vehicle, the speed limit state of the target vehicle is sent to the power domain controller of the target vehicle, so that the power domain controller updates the speed limit state of the target vehicle to the speed limit state of the target vehicle.

2. The method according to claim 1, characterized in that The vehicle speed limit instruction is an instruction encrypted based on the identification code corresponding to the target vehicle and the terminal serial number. Before determining whether the speed limit state of the target vehicle in the vehicle speed limit instruction is consistent with the speed limit state set for the current vehicle, the method further includes: Decrypt the vehicle speed limit instruction using a preset decryption algorithm, and perform vehicle identity authentication and information security authentication on the decrypted vehicle speed limit instruction; If the authentication is successful, the step of determining whether the target vehicle speed limit state in the vehicle speed limit instruction is consistent with the speed limit state set for the current vehicle is executed; If the authentication fails, a prompt message indicating the authentication failure will be sent to the vehicle supervision system via the cloud.

3. The method according to claim 1, characterized in that The method further comprises: If the speed limit state of the target vehicle is consistent with the speed limit state set for the current vehicle, a prompt message indicating that the vehicle is in the speed limit state of the target vehicle is sent to the vehicle supervision system via the cloud.

4. The method according to claim 1, characterized in that: The method further comprises: Acquire the speed limit state set for the current vehicle through the vehicle bus, where the speed limit state set for the current vehicle is sent to the vehicle bus in real time by the power domain controller when the vehicle bus is in an active state; The speed limit status set for the current vehicle is sent to the vehicle supervision system through the cloud, so that when the vehicle supervision system determines that the speed limit status of the corresponding vehicle currently stored in the system is inconsistent with the speed limit status set for the current vehicle, the vehicle speed limit instruction is sent to the on-board network terminal through the cloud, and the vehicle speed limit instruction at least includes the speed limit status of the corresponding vehicle currently stored in the system.

5. The method according to claim 1, characterized in that The method further comprises: In response to the unlock code sent by the vehicle computer of the target vehicle, the unlock code is authenticated. When the target vehicle is in an offline state, the vehicle supervision system calls the unlock code of the target vehicle through the cloud and prompts the user, so that after the user enters the unlock code on the vehicle computer, the vehicle computer sends it to the vehicle network terminal. The cloud stores the corresponding unlock code generated after encryption based on the identification codes and terminal serial numbers corresponding to all vehicles respectively; If the unlock code is authenticated, a request to release the speed limit is sent to the power domain controller, so that the power domain controller releases the speed limit state of the vehicle.

6. A vehicle speed limit control method, characterized in that: Applied to a power domain controller of a target vehicle, the method comprises: Receive the target vehicle speed limit status sent by the on-board network terminal, and update the speed limit status of the target vehicle to the target vehicle speed limit status, which is sent to the power domain controller when the on-board network terminal of the target vehicle responds to the vehicle speed limit instruction issued by the cloud and determines that the target vehicle speed limit status in the vehicle speed limit instruction is inconsistent with the speed limit status set for the current vehicle.

7. The method according to claim 6, characterized in that The updating of the speed limit state of the target vehicle to the speed limit state of the target vehicle includes: Get the current vehicle power gear status; If the current vehicle power gear state is the vehicle power-off state, then the next time the vehicle power gear state is responded to as the vehicle power-on state, the successfully set target vehicle speed limit state will be activated; If the current vehicle power gear position is not the vehicle power-off state, the step of obtaining the current vehicle power gear position state is repeated until the current vehicle power gear position state is the vehicle power-off state.

8. A vehicle speed limit control system, characterized in that: The vehicle speed limit control system includes a vehicle supervision system, a vehicle-mounted network terminal of the target vehicle and a power domain controller, wherein: After the user completes the speed limit state of the target vehicle, the vehicle supervision system generates a vehicle speed limit instruction in response to the user setting the target vehicle, and sends it to the vehicle-mounted network terminal corresponding to the target vehicle through the cloud; The vehicle-mounted network terminal of the target vehicle responds to the vehicle speed limit instruction issued by the cloud, and determines whether the speed limit state of the target vehicle in the vehicle speed limit instruction is consistent with the speed limit state set for the current vehicle; If the vehicle-mounted network terminal of the target vehicle determines that the speed limit state of the target vehicle is inconsistent with the speed limit state set for the current vehicle, the speed limit state of the target vehicle is sent to the power domain controller of the target vehicle; The power domain controller of the target vehicle receives the speed limit status of the target vehicle sent by the on-board network terminal, and updates the speed limit status of the target vehicle to the speed limit status of the target vehicle.

9. A vehicle, characterized in that: The vehicle is equipped with a vehicle-mounted network connection terminal and a power domain controller, wherein: The vehicle-mounted network terminal includes a first controller, the first controller includes a first memory and a first processor, the first memory and the first processor are connected to each other for communication, the first memory stores computer instructions, and the first processor executes the vehicle speed limit control method according to any one of claims 1 to 5 by executing the computer instructions; The power domain controller includes a second controller, the second controller includes a second memory and a second processor, the second memory and the second processor are communicatively connected to each other, the second memory stores computer instructions, and the second processor executes the vehicle speed limit control method described in any one of claims 6 to 7 by executing the computer instructions.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute the vehicle speed limit control method described in any one of claims 1 to 5, or to execute the vehicle speed limit control method described in any one of claims 6 to 7.

Images