Driving assistance method, device and system in vehicle power loss scene and medium

Abstract

The invention provides a driving assistance method, device and system in a vehicle power loss scene and a medium, and the method comprises the steps: obtaining the current external environment information of a vehicle when obtaining that the current available power of a vehicle power system is 0; according to the current external environment information of the vehicle and the current driving information of the vehicle, the vehicle brake pedal opening safety upper and lower limits and the steering wheel corner safety upper and lower limits are calculated; according to the vehicle brake pedal opening safety upper and lower limits, the steering wheel corner safety upper and lower limits, the vehicle current brake pedal opening and the vehicle current steering wheel corner, display reminding is conducted to assist driving. The driver is prompted in time to assist in driving, so that the driver can control the vehicle to enter a safe scene as soon as possible, and the driving safety of the whole vehicle is improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicles, and particularly to a driving assistance method, device, system and medium in a vehicle power loss scenario. Background Art

[0002] At the current stage, for the vehicle power system itself, when the power system monitors that the torque transmitted to the vehicle wheel end exceeds the controllable range, it will actively enter a torque safety state with more controllable overall risk through a safety mechanism.

[0003] The current mainstream approach is that when the power system triggers the torque safety state, the system will actively turn off the BLDC (Brushless Direct Current Motor) drive through a safety shutdown path, no longer output torque to the wheel end, and at the same time, the control right of the vehicle will be delivered to the driver, and the driver will control the vehicle to drive.

[0004] For the power system, choosing to prohibit torque output when the torque is uncontrollable is a relatively safe state. However, for users, prohibiting torque output will cause unexpected power loss of the whole vehicle, and unexpected power loss of the whole vehicle is not an absolutely safe state. For example, in high-speed or passing-overtaking scenarios, if the whole vehicle experiences unexpected power loss, the driver may make misoperations due to panic, thus causing the vehicle to enter a more dangerous state. Summary of the Invention

[0005] In view of this, this Summary of the Invention section is provided to introduce the concepts in a brief form, and these concepts will be described in detail in the following Detailed Description section. This Summary of the Invention section is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0006] The purpose of the present application is to provide a driving assistance method, device, system and medium in a vehicle power loss scenario, which can prompt the driver in a timely manner for assisted driving, so that the driver can quickly control the vehicle to enter a safe scenario and improve the driving safety of the whole vehicle.

[0007] To achieve the above purpose, the present application has the following technical solutions:

[0008] In a first aspect, an embodiment of the present application provides a driving assistance method in a vehicle power loss scenario, including:

[0009] When it is obtained that the current available power of the vehicle power system is 0, obtain the current external environment information of the vehicle; the current external environment information of the vehicle includes the current driving road information of the vehicle and the object information within the preset space of the vehicle;

[0010] Based on the current external environment information of the vehicle and the current driving information of the vehicle, the safety upper and lower limits of the braking pedal opening and the safety upper and lower limits of the steering wheel angle are calculated; the current driving information of the vehicle includes the current speed of the vehicle and the current position of the vehicle;

[0011] Based on the safety upper and lower limits of the braking pedal opening of the vehicle, the safety upper and lower limits of the steering wheel angle, the current braking pedal opening of the vehicle, and the current steering wheel angle of the vehicle, display reminders are made to assist driving.

[0012] In a possible implementation manner, the calculating the safety upper and lower limits of the braking pedal opening and the safety upper and lower limits of the steering wheel angle according to the current external environment information of the vehicle includes:

[0013] Calculating the safe driving space of the vehicle according to the object information within the preset space of the vehicle, the current driving information of the vehicle, and the current driving road information of the vehicle;

[0014] Based on the safe driving space of the vehicle and the current driving information of the vehicle, the safety upper and lower limits of the braking pedal opening of the vehicle and the safety upper and lower limits of the steering wheel angle are calculated.

[0015] In a possible implementation manner, the making display reminders to assist driving according to the safety upper and lower limits of the braking pedal opening of the vehicle, the safety upper and lower limits of the steering wheel angle, the current braking pedal opening of the vehicle, and the current steering wheel angle of the vehicle includes:

[0016] Displaying and reminding the safety upper and lower limits of the braking pedal opening of the vehicle, the safety upper and lower limits of the steering wheel angle, the current braking pedal opening of the vehicle, and the current steering wheel angle of the vehicle in the form of a human-machine interface to assist driving.

[0017] In a possible implementation manner, after obtaining the current external environment information of the vehicle and before calculating the safety upper and lower limits of the braking pedal opening and the safety upper and lower limits of the steering wheel angle according to the current external environment information of the vehicle and the current driving information of the vehicle, it further includes:

[0018] When it is obtained from the object information within the preset space of the vehicle that there is an object within the preset distance in front of the vehicle currently, then calculate the safety upper and lower limits of the braking pedal opening and the safety upper and lower limits of the steering wheel angle according to the current external environment information of the vehicle and the current driving information of the vehicle.

[0019] In a second aspect, an embodiment of the present application provides a driving assistance device in a vehicle power loss scenario, including:

[0020] An acquisition unit, configured to acquire the current external environment information of the vehicle when the current available power of the vehicle power system is 0; the current external environment information of the vehicle includes the current driving road information of the vehicle and the object information within the preset space of the vehicle;

[0021] A calculation unit, configured to calculate the safe upper and lower limits of the brake pedal opening and the safe upper and lower limits of the steering wheel angle according to the current external environment information of the vehicle and the current driving information of the vehicle; the current driving information of the vehicle includes the current speed of the vehicle and the current position of the vehicle;

[0022] A reminder unit, configured to perform a display reminder according to the safe upper and lower limits of the brake pedal opening of the vehicle, the safe upper and lower limits of the steering wheel angle, the current brake pedal opening of the vehicle, and the current steering wheel angle of the vehicle to assist driving.

[0023] In a possible implementation manner, the calculation unit is specifically configured to:

[0024] Calculate the safe driving space of the vehicle according to the object information within the preset space of the vehicle, the current driving information of the vehicle, and the current driving road information of the vehicle;

[0025] Calculate the safe upper and lower limits of the brake pedal opening of the vehicle and the safe upper and lower limits of the steering wheel angle according to the safe driving space of the vehicle and the current driving information of the vehicle.

[0026] In a possible implementation manner, the reminder unit is specifically configured to:

[0027] Perform a display reminder in the form of a human-machine interface for the safe upper and lower limits of the brake pedal opening of the vehicle, the safe upper and lower limits of the steering wheel angle, the current brake pedal opening of the vehicle, and the current steering wheel angle of the vehicle to assist driving.

[0028] In a possible implementation manner, it further includes:

[0029] A comparison unit, configured to, when there is an object within a preset distance in front of the vehicle according to the object information within the preset space of the vehicle, perform the calculation of the safe upper and lower limits of the brake pedal opening of the vehicle and the safe upper and lower limits of the steering wheel angle according to the current external environment information of the vehicle and the current driving information of the vehicle.

[0030] In a third aspect, an embodiment of the present application provides a driving assistance system in a vehicle power loss scenario, including:

[0031] A memory, configured to store a computer program;

[0032] A processor, configured to implement the steps of the driving assistance method in the vehicle power loss scenario as described above when executing the computer program.

[0033] In a fourth aspect, an embodiment of the present application provides a computer-readable medium, on which a computer program is stored, and when the computer program is processed and executed, the steps of the driving assistance method in the vehicle power loss scenario as described above are implemented.

[0034] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0035] The embodiments of the present application provide a driving assistance method, device, system and medium in a vehicle power loss scenario. The method includes: when the current available power of the vehicle power system is obtained as 0, obtaining the current external environment information of the vehicle; the current external environment information of the vehicle includes the current driving road information of the vehicle and the object information within the preset space of the vehicle; calculating the safe upper and lower limits of the brake pedal opening and the safe upper and lower limits of the steering wheel angle according to the current external environment information of the vehicle and the current driving information of the vehicle; the current driving information of the vehicle includes the current speed of the vehicle and the current position of the vehicle; performing display reminders according to the safe upper and lower limits of the brake pedal opening, the safe upper and lower limits of the steering wheel angle, the current brake pedal opening of the vehicle, and the current steering wheel angle of the vehicle to assist driving. Through the calculated safe upper and lower limits of the brake pedal opening and the safe upper and lower limits of the steering wheel angle of the vehicle, the present application timely prompts the driver to assist driving, so that the driver can quickly control the vehicle to enter a safe scenario and improve the driving safety of the whole vehicle. Description of the Drawings

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0037] Combined with the drawings and referring to the following specific embodiments, the above and other features, advantages and aspects of the embodiments of the present disclosure will become more obvious. Throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic, and the original elements and elements are not necessarily drawn to scale.

[0038] Figure 1 Shows a flowchart of a driving assistance method in a vehicle power loss scenario provided by an embodiment of the present application;

[0039] Figure 2 Shows an interaction schematic diagram between various function signals provided by an embodiment of the present application;

[0040] Figure 3 Shows a schematic diagram of a display scheme provided by an embodiment of the present application;

[0041] Figure 4 The figure shows a schematic diagram of a driving assistance device provided by an embodiment of the present application in a vehicle power loss scenario. Detailed implementation manners

[0042] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application in conjunction with the accompanying drawings.

[0043] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0044] As described in the background art, at the current stage, for the vehicle power system itself, when the power system monitors that the torque transmitted to the vehicle wheel end exceeds the controllable range, it will actively enter a torque safety state with a more controllable overall risk through a safety mechanism.

[0045] The current mainstream approach is that when the power system triggers the torque safety state, the system will actively turn off the BLDC (Brushless Direct Current Motor) drive through a safety shutdown path, no longer output torque to the wheel end, and at the same time, the control right of the vehicle will be delivered to the driver, and the driver will control the vehicle to drive.

[0046] For the power system, choosing to prohibit torque output when the torque is uncontrollable is a relatively safe state. However, for the user, prohibiting torque output will cause unexpected power loss of the whole vehicle. Unexpected power loss of the whole vehicle is not an absolutely safe state. For example, in high-speed or passing-overtaking scenarios, if the whole vehicle experiences unexpected power loss, the driver may make misoperations due to panic, thus putting the vehicle into a more dangerous state.

[0047] To solve the above technical problems, an embodiment of the present application provides a driving assistance method, device, system, and medium in a vehicle power loss scenario. The method includes: when the current available power of the vehicle power system is 0, obtaining the current external environment information of the vehicle; the current external environment information of the vehicle includes the current driving road information of the vehicle and the object information within the preset space of the vehicle; calculating the safe upper and lower limits of the brake pedal opening and the safe upper and lower limits of the steering wheel angle according to the current external environment information of the vehicle and the current driving information of the vehicle; the current driving information of the vehicle includes the current speed of the vehicle and the current position of the vehicle; performing display reminders according to the safe upper and lower limits of the brake pedal opening, the safe upper and lower limits of the steering wheel angle, the current brake pedal opening of the vehicle, and the current steering wheel angle of the vehicle to assist driving. Through the calculated safe upper and lower limits of the brake pedal opening and the safe upper and lower limits of the steering wheel angle, the present application timely prompts the driver to assist driving, so that the driver can quickly control the vehicle to enter a safe scenario and improve the driving safety of the whole vehicle.

[0048] Exemplary method

[0049] See Figure 1 As shown, it is a flowchart of a driving assistance method in a vehicle power loss scenario provided by an embodiment of the present application, including:

[0050] S101: When the current available power of the vehicle power system is 0, obtain the current external environment information of the vehicle; the current external environment information of the vehicle includes the current driving road information of the vehicle and the object information within the preset space of the vehicle.

[0051] In an embodiment of the present application, see Figure 2 As shown, it is an interaction schematic diagram of various function signals provided by an embodiment of the present application.

[0052] The identification of the current available power can be performed by the power system. Specifically, when the power system identifies that its own fault cannot be recovered, it prohibits torque output and externally feedbacks that the power system fault level is that the current power loss cannot be recovered and the current available power is 0.

[0053] The power system can feedback the power system fault level and the current available power to the driving assistance system. When the driving assistance system identifies that the vehicle power is unexpectedly lost, it can obtain the current external environment information of the vehicle and send it to the cockpit system; the current external environment information of the vehicle includes the current driving road information of the vehicle and the object information within the preset space of the vehicle.

[0054] For example, the current driving road information of the vehicle may include the type of the driving road of the vehicle, such as whether the current driving road is a national road or an expressway, the speed limit of the current driving road, the number of lanes of the current driving road, the fork in the current driving road, etc. The object information within the preset space of the vehicle may include information such as vehicles, pedestrians, and obstacles within the preset distance of the driving lane of the vehicle, and information such as vehicles, pedestrians, and obstacles within the preset distance of the side lane of the vehicle.

[0055] S102: Calculate the upper and lower safety limits of the brake pedal opening and the upper and lower safety limits of the steering wheel angle of the vehicle according to the current external environment information of the vehicle and the current driving information of the vehicle; the current driving information of the vehicle includes the current speed of the vehicle and the current position of the vehicle.

[0056] S103: Perform display reminders according to the upper and lower safety limits of the brake pedal opening of the vehicle, the upper and lower safety limits of the steering wheel angle, the current brake pedal opening of the vehicle, and the current steering wheel angle of the vehicle to assist driving.

[0057] In the embodiment of the present application, the upper and lower safety limits of the brake pedal opening and the upper and lower safety limits of the steering wheel angle of the vehicle can be calculated according to the current external environment information of the vehicle and the current driving information of the vehicle; the current driving information of the vehicle includes the current speed of the vehicle and the current position of the vehicle.

[0058] Then, perform display reminders according to the upper and lower safety limits of the brake pedal opening, the upper and lower safety limits of the steering wheel angle, the current brake pedal opening of the vehicle, and the current steering wheel angle of the vehicle to assist driving.

[0059] Specifically, the upper and lower safety limits of the brake pedal opening and the upper and lower safety limits of the steering wheel angle of the vehicle can be calculated by the driving assistance system and then fed back to the cockpit system, or can be directly calculated by the cockpit system.

[0060] See Figure 3 As shown, it is a schematic diagram of a display solution provided by the embodiment of the present application, which can be displayed on the display screen of the vehicle, so as to facilitate the driver to make a judgment and play a role in reminding the driver to assist driving.

[0061] In a possible implementation manner, calculating the upper and lower safety limits of the brake pedal opening and the upper and lower safety limits of the steering wheel angle of the vehicle according to the current external environment information of the vehicle provided by the embodiment of the present application may specifically include:

[0062] Calculate the safe driving space of the vehicle according to the object information within the preset space of the vehicle, the current driving information of the vehicle, and the current driving road information of the vehicle; calculate the upper and lower safety limits of the brake pedal opening and the upper and lower safety limits of the steering wheel angle of the vehicle according to the safe driving space of the vehicle and the current driving information of the vehicle.

[0063] For example, if the object in the vehicle's preset space is another vehicle, the information about the object in the vehicle's preset space may include the speed of the object in the vehicle's preset space and the position of the object in the vehicle's preset space, and the current driving information of the vehicle may include the current speed of the vehicle and the current position of the vehicle. Thus, the relative distances and relative speeds between the vehicle and the vehicle in front, the vehicle behind, and the vehicles in adjacent lanes can be calculated based on the speed of the object in the vehicle's preset space, the position of the object in the vehicle's preset space, the current speed of the vehicle, and the current position of the vehicle.

[0064] The current driving road information of the vehicle may include the information about the available driving lanes. Combining the information about the available driving lanes and the relative distances and relative speeds between the vehicle and the vehicle in front, the vehicle behind, and the vehicles in adjacent lanes respectively, the safe driving space of the vehicle can be calculated.

[0065] After calculating the safe driving space of the vehicle, the safe upper and lower limits of the brake pedal opening and the safe upper and lower limits of the steering wheel angle can be calculated based on the safe driving space of the vehicle and the current driving information of the vehicle.

[0066] Specifically, the current driving information of the vehicle may include, for example, the current speed of the vehicle, the current position of the vehicle, and the current driving direction of the vehicle. Based on the current driving information of the vehicle and the safe driving space of the vehicle, what operations are still needed to enter the safe driving space can be calculated, and this is used as a reminder for the driver about the safe upper and lower limits of the brake pedal opening and the safe upper and lower limits of the steering wheel angle.

[0067] For example, if the vehicle loses power on the highway and the ultimate goal is to pull over, in this scenario, the system should determine how to guide the user to finally achieve a safe pull-over, and thus calculate the safe upper and lower limits of the brake pedal opening and the safe upper and lower limits of the steering wheel angle for timely reminder to the driver later.

[0068] Thus, it can be ensured that the vehicle enters a relatively safe scenario, improving the driving safety of the whole vehicle.

[0069] In a possible implementation manner, the display reminder for assisting driving according to the safe upper and lower limits of the brake pedal opening of the vehicle, the safe upper and lower limits of the steering wheel angle, the current brake pedal opening of the vehicle, and the current steering wheel angle provided in the embodiments of the present application may specifically include:

[0070] Displaying the safe upper and lower limits of the brake pedal opening of the vehicle, the safe upper and lower limits of the steering wheel angle, the current brake pedal opening of the vehicle, and the current steering wheel angle in the form of a human-machine interface for display reminder to assist driving.

[0071] Specifically, in the embodiments of the present application, referring to Figure 3 as shown, it can be displayed by the human-machine interface Figure 3Schematic diagram of the display solution. Combining the current brake pedal opening of the vehicle and the current steering wheel angle of the vehicle fed back by the chassis system, as well as the safety upper and lower limits of the brake pedal opening and the safety upper and lower limits of the steering wheel angle of the vehicle fed back by the driving assistance system, relevant information is prompted to the user in the form of HMI (Human Machine Interface) on how to control the vehicle to drive the vehicle into a relatively safe scenario.

[0072] In a possible implementation manner, after the embodiment of the present application obtains the current external environment information of the vehicle, before calculating the safety upper and lower limits of the brake pedal opening and the safety upper and lower limits of the steering wheel angle according to the current external environment information of the vehicle and the current driving information of the vehicle, it may further include:

[0073] When it is obtained from the object information within the preset space of the vehicle that there is an object within the preset distance in front of the vehicle, then calculate the safety upper and lower limits of the brake pedal opening and the safety upper and lower limits of the steering wheel angle according to the current external environment information of the vehicle and the current driving information of the vehicle.

[0074] That is, in the embodiment of the present application, when the driving assistance system recognizes that the overall vehicle power is unexpectedly lost, it combines the external traffic environment to judge whether there is a risk in the current overall vehicle state. If there is an object within the preset distance in front of the vehicle, it means that the distance between the vehicle and other objects such as other cars is too close and there is a risk. If there is a risk, a driving assistance HMI (Human Machine Interface) display request is sent to the cockpit system, and calculate the safety upper and lower limits of the brake pedal opening and the safety upper and lower limits of the steering wheel angle according to the current external environment information of the vehicle and the current driving information of the vehicle.

[0075] Optionally, in the embodiment of the present application, when the cockpit system recognizes that the current overall vehicle power loss cannot be restored, it is necessary to inform the user by turning on the fault light through the human-machine interface in time to attract the user's attention to adjust the vehicle state.

[0076] In addition, in the embodiment of the present application, display reminders can be made according to the safety upper and lower limits of the brake pedal opening, the safety upper and lower limits of the steering wheel angle, the current brake pedal opening of the vehicle, and the current steering wheel angle of the vehicle to assist driving, so as to prompt the driver to continuously and dynamically adjust the vehicle. If the power has not been restored, confirm that the vehicle is in a safe area and there are no restrictions on the safety upper and lower limits of the brake pedal opening and the safety upper and lower limits of the steering wheel angle of the vehicle, the prompt can be ended. If the power of the vehicle is restored during the adjustment process, the prompt can also be ended.

[0077] An embodiment of the present application provides a driving assistance method in a vehicle power loss scenario. The method includes: when the current available power of the vehicle power system is obtained as 0, obtaining the current external environment information of the vehicle; the current external environment information of the vehicle includes the current driving road information of the vehicle and the object information within the preset space of the vehicle; calculating the safe upper and lower limits of the brake pedal opening and the safe upper and lower limits of the steering wheel angle according to the current external environment information of the vehicle and the current driving information of the vehicle; the current driving information of the vehicle includes the current speed of the vehicle and the current position of the vehicle; performing display reminder according to the safe upper and lower limits of the brake pedal opening, the safe upper and lower limits of the steering wheel angle, the current brake pedal opening of the vehicle, and the current steering wheel angle of the vehicle to assist driving. Through the calculated safe upper and lower limits of the brake pedal opening and the safe upper and lower limits of the steering wheel angle of the vehicle, the present application gives timely prompts to the driver to assist driving, so that the driver can quickly control the vehicle to enter a safe scenario and improve the driving safety of the whole vehicle.

[0078] Exemplary apparatus

[0079] See Figure 4 As shown, it is a schematic diagram of a driving assistance device in a vehicle power loss scenario provided by an embodiment of the present application, including:

[0080] An acquisition unit 201, configured to obtain the current external environment information of the vehicle when the current available power of the vehicle power system is obtained as 0; the current external environment information of the vehicle includes the current driving road information of the vehicle and the object information within the preset space of the vehicle;

[0081] A calculation unit 202, configured to calculate the safe upper and lower limits of the brake pedal opening and the safe upper and lower limits of the steering wheel angle according to the current external environment information of the vehicle and the current driving information of the vehicle; the current driving information of the vehicle includes the current speed of the vehicle and the current position of the vehicle;

[0082] A reminder unit 203, configured to perform display reminder according to the safe upper and lower limits of the brake pedal opening, the safe upper and lower limits of the steering wheel angle, the current brake pedal opening of the vehicle, and the current steering wheel angle of the vehicle to assist driving.

[0083] In a possible implementation manner, the calculation unit is specifically configured to:

[0084] Obtain the safe driving space of the vehicle and the speed of the object within the preset space of the vehicle according to the object information within the preset space of the vehicle;

[0085] Calculate the safe driving space of the vehicle according to the object information within the preset space of the vehicle, the current driving information of the vehicle, and the current driving road information of the vehicle;

[0086] Based on the vehicle's safe driving space and the vehicle's current driving information, the safe upper and lower limits of the vehicle's brake pedal opening and the safe upper and lower limits of the steering wheel angle are calculated.

[0087] In a possible implementation manner, the reminder unit is specifically configured to:

[0088] Display and remind in the form of a human-machine interface the safe upper and lower limits of the vehicle's brake pedal opening, the safe upper and lower limits of the steering wheel angle, the vehicle's current brake pedal opening, and the vehicle's current steering wheel angle to assist driving.

[0089] In a possible implementation manner, it further includes:

[0090] A comparison unit, configured to, when it is obtained that there is an object within a preset distance in front of the vehicle according to the object information within the preset space of the vehicle, perform the calculation of the safe upper and lower limits of the vehicle's brake pedal opening and the safe upper and lower limits of the steering wheel angle according to the vehicle's current external environment information and the vehicle's current driving information.

[0091] The embodiment of the present application provides a driving assistance device in a vehicle power loss scenario. The method applied to this device includes: when it is obtained that the current available power of the vehicle power system is 0, obtaining the vehicle's current external environment information; the vehicle's current external environment information includes the vehicle's current driving road information and the object information within the preset space of the vehicle; calculating the safe upper and lower limits of the vehicle's brake pedal opening and the safe upper and lower limits of the steering wheel angle according to the vehicle's current external environment information and the vehicle's current driving information; the vehicle's current driving information includes the vehicle's current speed and the vehicle's current position; performing display and reminder according to the safe upper and lower limits of the vehicle's brake pedal opening, the safe upper and lower limits of the steering wheel angle, the vehicle's current brake pedal opening, and the vehicle's current steering wheel angle to assist driving. The present application timely prompts the driver through the calculated safe upper and lower limits of the vehicle's brake pedal opening and the safe upper and lower limits of the steering wheel angle to assist driving, so that the driver can quickly control the vehicle to enter a safe scenario and improve the driving safety of the whole vehicle.

[0092] Based on the above embodiment, the embodiment of the present application provides a driving assistance system in a vehicle power loss scenario, including:

[0093] A memory, configured to store a computer program;

[0094] A processor, configured to implement the steps of the driving assistance method in the vehicle power loss scenario as described above when executing the computer program.

[0095] Based on the above embodiments, an embodiment of the present application further provides a computer-readable medium, on which a computer program is stored, and when the computer program is processed and executed, the steps of the driving assistance method in the above vehicle power loss scenario are implemented.

[0096] It should be noted that the computer-readable medium in the present disclosure may be a computer-readable signal medium, a computer-readable storage medium, or any combination of the two. A computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present disclosure, a computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In the present disclosure, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries computer-readable program code. Such a propagated data signal may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. The program code contained on a computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination of the above.

[0097] The above computer-readable medium may be included in the above system; or it may exist separately and not be assembled into the system.

[0098] Specifically, according to an embodiment of the present disclosure, the process described above with reference to the flowchart may be implemented as a computer software program. For example, an embodiment of the present disclosure includes a computer program product, which includes a computer program carried on a non-transitory computer-readable medium, and the computer program contains program code for executing the method shown in the flowchart.

[0099] Each embodiment in this specification is described in a progressive manner. For the same or similar parts among the embodiments, reference can be made to each other, and the key point of each embodiment is to illustrate the differences from other embodiments. In particular, for the device embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and reference can be made to the relevant parts of the method embodiments for the relevant content.

[0100] The above description is only a preferred embodiment of the present application. Although the present application has been disclosed above with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present application by using the methods and technical contents disclosed above, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical solution of the present application still fall within the scope of the technical solution of the present application.

Claims

1. A driving assistance method in a vehicle power loss scenario, characterized in that: include: When the current available power of the vehicle power system is obtained to be 0, the current external environment information of the vehicle is obtained; The vehicle's current external environment information includes the vehicle's current driving road information and the object information in the vehicle's preset space; Calculating the upper and lower safe limits of the vehicle brake pedal opening and the upper and lower safe limits of the steering wheel angle according to the current external environment information of the vehicle and the current driving information of the vehicle; The current driving information of the vehicle includes the current speed of the vehicle and the current position of the vehicle; Display reminders to assist driving based on the vehicle's brake pedal opening safety upper and lower limits, the steering wheel angle safety upper and lower limits, the vehicle's current brake pedal opening and the vehicle's current steering wheel angle.

2. The method according to claim 1, characterized in that The calculating of the safe upper and lower limits of the vehicle brake pedal opening and the safe upper and lower limits of the steering wheel angle according to the current external environment information of the vehicle and the current driving information of the vehicle includes: Calculate the safe driving space of the vehicle according to the object information in the preset space of the vehicle, the current driving information of the vehicle and the current driving road information of the vehicle; The safe upper and lower limits of the vehicle brake pedal opening and the safe upper and lower limits of the steering wheel angle are calculated according to the safe driving space of the vehicle and the current driving information of the vehicle.

3. The method according to claim 1, characterized in that The display reminder to assist driving according to the vehicle brake pedal opening safety upper and lower limits, the steering wheel angle safety upper and lower limits, the vehicle's current brake pedal opening and the vehicle's current steering wheel angle includes: The vehicle's brake pedal opening safety upper and lower limits, the steering wheel angle safety upper and lower limits, the vehicle's current brake pedal opening and the vehicle's current steering wheel angle are displayed in the form of a human-machine interface to assist driving.

4. The method according to claim 1, characterized in that: After acquiring the current external environment information of the vehicle and before calculating the safe upper and lower limits of the vehicle brake pedal opening and the safe upper and lower limits of the steering wheel angle according to the current external environment information of the vehicle and the current driving information of the vehicle, the method further includes: When it is obtained according to the object information in the preset space of the vehicle that there is an object within the preset distance in front of the vehicle, the safe upper and lower limits of the vehicle brake pedal opening and the safe upper and lower limits of the steering wheel angle are calculated according to the current external environment information of the vehicle and the current driving information of the vehicle.

5. A driving assistance device in a vehicle power loss scenario, characterized in that: include: An acquisition unit, used for acquiring current external environment information of the vehicle when it is acquired that the current available power of the vehicle power system is 0; The vehicle's current external environment information includes the vehicle's current driving road information and the object information in the vehicle's preset space; A calculation unit, used for calculating the upper and lower safe limits of the vehicle brake pedal opening and the upper and lower safe limits of the steering wheel angle according to the current external environment information of the vehicle and the current driving information of the vehicle; The current driving information of the vehicle includes the current speed of the vehicle and the current position of the vehicle; The reminder unit is used to display reminders to assist driving based on the vehicle's brake pedal opening safety upper and lower limits, the steering wheel angle safety upper and lower limits, the vehicle's current brake pedal opening and the vehicle's current steering wheel angle.

6. The device according to claim 5, characterized in that The computing unit is specifically used for: Calculate the safe driving space of the vehicle according to the object information in the preset space of the vehicle, the current driving information of the vehicle and the current driving road information of the vehicle; The safe upper and lower limits of the vehicle brake pedal opening and the safe upper and lower limits of the steering wheel angle are calculated according to the safe driving space of the vehicle and the current driving information of the vehicle.

7. The device according to claim 5, characterized in that The reminder unit is specifically used for: The vehicle's brake pedal opening safety upper and lower limits, the steering wheel angle safety upper and lower limits, the vehicle's current brake pedal opening and the vehicle's current steering wheel angle are displayed in the form of a human-machine interface to assist driving.

8. The device according to claim 5, characterized in that Also includes: The comparison unit is used to calculate the safe upper and lower limits of the vehicle brake pedal opening and the safe upper and lower limits of the steering wheel angle according to the current external environment information of the vehicle and the current driving information of the vehicle when it is obtained that there is an object within the preset distance in front of the vehicle based on the object information in the preset space of the vehicle.

9. A driving assistance system in a vehicle power loss scenario, characterized in that: include: Memory for storing computer programs; A processor is used to implement the steps of the driving assistance method in a vehicle power loss scenario as described in any one of claims 1-4 when executing the computer program.

10. A computer-readable medium, characterized in that The computer-readable medium stores a computer program, which, when processed and executed, implements the steps of the driving assistance method in a vehicle power loss scenario as described in any one of claims 1-4.

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