CN115709718A

CN115709718A - Method and device for assisting driving of novice, vehicle and storage medium

Info

Publication number: CN115709718A
Application number: CN202211469481.1A
Authority: CN
Inventors: 朱雨桃; 严钦山; 杨官龙
Original assignee: Chongqing Changan New Energy Automobile Technology Co Ltd
Current assignee: Chongqing Changan New Energy Automobile Technology Co Ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-02-24

Abstract

The application relates to the technical field of automobile safety, in particular to a driving assistance method and device for a novice driver, a vehicle and a storage medium, wherein the method comprises the following steps: identifying whether the vehicle enters a beginner mode; when the fact that the vehicle enters the novice mode is recognized, determining a driving torque limiting curve of the vehicle according to an actual driving scene of the vehicle, wherein the driving torque limiting curve is a curve of opening of an accelerator pedal and driving torque, and when the opening of an accelerator is the same, the driving torque corresponding to the driving torque limiting curve is smaller than the driving torque corresponding to the driving torque curve of the vehicle in a normal driving mode; and controlling the vehicle to execute a driving action corresponding to an actual driving scene according to the actual opening of the accelerator pedal and the driving torque limit curve. Therefore, the problems that a novice feels no vehicle feeling and the control of the vehicle is difficult, the universality of the vehicle and the fault tolerance rate of driving are low, accident potential safety hazards exist, the driving experience of a driver is poor and the like in the related technology are solved.

Description

Method and device for assisting driving of novice, vehicle and storage medium

Technical Field

The application relates to the technical field of automobile safety, in particular to a driving assistance method and device for a novice driver, a vehicle and a storage medium.

Background

With the continuous development of the automobile industry, users are gradually increased, the traffic accident rate caused by driving the automobile by a novice is high, and if a driving mode suitable for the novice exists, the accident rate can be effectively reduced.

In the related technology, a new driver driving skill auxiliary improving system based on a Logistic model acquires a probability value of a tense emotion of a driver through real-time detection, compares the probability value with a set standard probability value, and provides a corresponding driving suggestion for the driver through a mobile terminal, so that the driving skill of the driver is improved. The patent 'novice driver driving auxiliary system' actively helps the driver to correct the driving deviation in the novice mode, but has higher requirements on hardware equipment and algorithms such as a camera and a radar for driving assistance, and is easy to trigger by mistake, thereby influencing normal driving.

Therefore, the prior art does not have universality, has potential safety accident hazards, and cannot well solve the problem of assistant driving of a novice.

Disclosure of Invention

The application provides a novice driving assisting method and device, a vehicle and a storage medium, and aims to solve the problems that in the related technology, a novice has no vehicle feeling and is difficult to control the vehicle, the vehicle universality and the driving fault tolerance rate are low, potential safety hazards of accidents exist, the driving experience of a user is poor, and the like.

An embodiment of a first aspect of the present application provides a driving assistance method for a novice driver, including the following steps: identifying whether the vehicle enters a beginner mode; when the vehicle is identified to enter the novice mode, determining a driving torque limit curve of the vehicle according to an actual driving scene of the vehicle, wherein the driving torque limit curve is a curve of an opening degree of an accelerator pedal and a driving torque, and when the opening degree of an accelerator is the same, the driving torque corresponding to the driving torque limit curve is smaller than the driving torque corresponding to the driving torque curve of the vehicle in a normal driving mode; and controlling the vehicle to execute the driving action corresponding to the actual driving scene according to the actual opening degree of an accelerator pedal and the driving torque limit curve.

According to the technical means, the driving torque limiting curve can be determined according to the actual scene of vehicle running in the new hand mode, and the driving torque is controlled, so that the highest speed limit and the vehicle performance are controlled, the difficulty of new hand driving is reduced, the fault tolerance rate of new hand driving is improved, the accident rate of the vehicle is reduced, the safety of new hand driving is ensured, the excessive requirement of the vehicle on intellectualization is reduced, and the universality of the vehicle is improved.

Optionally, in an embodiment of the present application, the determining a driving torque limit curve of the vehicle according to an actual driving scenario of the vehicle includes: if the actual driving scene is a driving scene, matching a driving torque limit curve of the vehicle to be a first driving torque limit curve according to the driving scene; and if the actual driving scene is a parking scene, matching a driving torque limit curve of the vehicle according to the parking scene to be a second driving torque limit curve, wherein when the opening degree of the accelerator is the same, the driving torque corresponding to the first driving torque limit curve is larger than the driving torque corresponding to the second driving torque limit curve.

According to the technical means, the driving torque limiting curve adjusting method and device can correspond to different driving scenes, the vehicle can be matched with different driving torque limiting curves, accordingly, the adaptability of the driving torque limiting curve of the vehicle to different driving scenes is improved, the driving torque corresponding to the first driving torque limiting curve is large in the driving scenes, the driving performance of the vehicle can be effectively controlled, the vehicle speed is prevented from being out of control, the safety accident rate is reduced, and the driving safety is improved.

Optionally, in an embodiment of the present application, after determining the driving torque limit curve of the vehicle according to the actual driving scenario of the vehicle, the method further includes: identifying a user's adjustment action for the drive torque limit curve; and adjusting the limiting degree of the first driving torque limiting curve and/or the second driving torque limiting curve based on the adjusting action to obtain an adjusted driving torque limiting curve.

According to the technical means, the embodiment of the application can provide the adjusting function of the driving torque limiting curve, so that a user can adjust the driving torque limiting curve according to the requirement, the output power can be increased or reduced, the using requirements of different users are met, and the using experience of the user is improved.

Optionally, in an embodiment of the application, when the accelerator opening degree is the same, the driving torque corresponding to the driving torque limit curve is smaller than the driving torque corresponding to the driving torque curve in the normal driving mode.

According to the technical means, the driving performance of the vehicle can be limited by limiting the driving torque corresponding to the throttle opening, the frequency of back-and-forth switching between the throttle brake is reduced, the fault tolerance rate of driving by a novice is improved, and the safety accident rate is reduced.

Optionally, in an embodiment of the present application, when it is recognized that the vehicle enters the novice mode, the method further includes: and determining the highest vehicle speed limit of the vehicle according to the actual driving scene, wherein the highest vehicle speed limit is less than the highest vehicle speed of the vehicle in a normal driving mode.

According to the technical means, the embodiment of the application can avoid the too fast speed of the vehicle by limiting the highest speed of the vehicle when entering the novice mode, so that the novice can have sufficient emergency response time when encountering emergency, the safety accident rate can be reduced, and the use experience of users is improved.

Optionally, in an embodiment of the present application, when it is recognized that the vehicle enters the novice mode, the method further includes: acquiring the accumulated driving mileage of the vehicle; and inquiring a preset mileage and vehicle speed relation table by taking the accumulated mileage as an index to obtain the highest vehicle speed limit corresponding to the accumulated mileage.

According to the technical means, the highest speed limit can be adjusted according to the accumulated driving mileage, the driving level of a novice can be continuously adapted to, the novice can fully obtain the driving experience matched with the current driving level, and the intelligence of the vehicle is improved.

Optionally, in an embodiment of the present application, when it is recognized that the vehicle enters the novice mode, the method further includes: and determining a preset energy recovery curve of the vehicle according to the actual driving scene, and controlling the vehicle to recover energy by using the preset energy recovery curve, wherein the preset energy recovery curve is a curve of recovery torque and vehicle speed.

According to the technical means, the embodiment of the application can determine the preset energy recovery curve of the vehicle according to the actual driving scene in the novice mode, and can recover the energy of the vehicle, so that the adaptability of energy recovery in different driving scenes is improved, the braking performance of the vehicle is improved, and the driving safety of the vehicle is improved.

Optionally, in an embodiment of the present application, the determining a preset energy recovery curve of the vehicle according to the actual driving scenario includes: if the actual driving scene is a driving scene, matching a preset energy recovery curve of the vehicle according to the driving scene to be a first energy recovery curve, wherein when the vehicle speed is the same, the recovery torque corresponding to the first energy recovery curve is larger than the recovery torque corresponding to the energy recovery curve in the normal driving mode; and if the actual driving scene is a parking scene, matching a preset energy recovery curve of the vehicle according to the parking scene to be a second energy recovery curve, wherein when the vehicle speed is the same, the recovery torque corresponding to the second energy recovery curve is smaller than the recovery torque corresponding to the energy recovery curve in the normal driving mode.

According to the technical means, different energy recovery curves can be matched according to different driving scenes, so that the adaptability of the energy recovery curves of the vehicle to different driving scenes is improved, the energy recovery of the vehicle is increased, the braking times are reduced, the probability of mistaken stepping is reduced, the safety accident rate is reduced, and the driving safety is improved.

Optionally, in an embodiment of the present application, after determining the preset energy recovery curve of the vehicle according to the actual driving scenario, the method further includes: identifying an adjusting action of a user on the preset energy recovery curve; and adjusting the energy recovery increasing degree of the preset energy recovery curve based on the adjusting action to obtain the adjusted preset energy recovery curve.

According to the technical means, the energy recovery curve adjusting function can be provided, so that a user can adjust the energy recovery curve according to requirements, the current vehicle recovery performance can be increased or reduced, the use requirements of different users are met, and the use experience of the user is improved.

Optionally, in an embodiment of the application, when the vehicle is controlled to perform a driving action corresponding to the actual driving scenario according to the actual opening degree of an accelerator pedal and the driving torque limit curve, the method further includes: calculating an opening degree change rate based on the actual opening degree of the accelerator pedal at any two moments; and if the opening degree change rate is larger than the opening degree threshold value, triggering the false stepping prevention function of the vehicle, forbidding the vehicle to output the driving torque, and exiting the false stepping prevention function when detecting that the actual opening degree is smaller than the preset opening degree.

According to the technical means, the mistaken-stepping prevention function of the vehicle can be triggered by comparing the opening degree change rate with the opening degree threshold value, and the vehicle is controlled not to output the driving torque when the mistaken-stepping prevention function is triggered, so that the fault tolerance rate of new driver driving is improved, and the safety accident rate of vehicle driving is reduced.

Optionally, in an embodiment of the present application, when the false stepping prevention function of the vehicle is triggered, or the false stepping prevention function is exited, the method further includes: and generating a triggering prompt or an exit prompt of the false stepping prevention function.

According to the technical means, when the mistaken stepping prevention function is triggered or quitted, the vehicle can generate the prompt information, and a user can conveniently adjust the mistaken stepping action.

Optionally, in an embodiment of the application, when the vehicle is controlled to perform a driving action corresponding to the actual driving scenario according to the actual opening degree of an accelerator pedal and the driving torque limit curve, the method further includes: acquiring the speed information and/or gear information of the vehicle; and when a preset prompt condition is met, generating a vehicle speed prompt according to the vehicle speed information and/or generating a gear prompt according to the gear information.

According to the technical means, the vehicle speed prompt can be generated according to the vehicle speed information of the vehicle, the condition that the vehicle is in the state that the vehicle speed is not matched with the road condition for a long time is avoided, the safety accident rate is reduced, the gear prompt is generated according to the gear information of the vehicle, the driving problem caused by unsuccessful gear shifting of a driver is avoided, the driver can know the current vehicle state in time, and the driving safety is improved.

Optionally, in an embodiment of the present application, the identifying whether the vehicle enters the novice mode includes: when the fact that the vehicle meets the mode switching condition is detected, identifying identity information of the driver; if the driver is determined to be a person in a preset information base based on the identity information and the driver is in a new hand mode when driving last time, controlling the vehicle to enter the new hand mode; and if the driver is determined not to be in the preset information base based on the identity information, controlling the vehicle to enter the novice mode based on the entry intention of the driver.

According to the technical means, the vehicle can be controlled to enter the new hand mode by identifying the identity information of the driver, the problem that the new hand driver cannot manually select to enter the new hand mode due to incomplete understanding of the vehicle function is avoided, and the flexibility and the convenience for the vehicle to enter the new hand mode are improved.

An embodiment of a second aspect of the present application provides a driving assistance device for a novice driver, including: the identification module is used for identifying whether the vehicle enters a novice mode or not; the first determination module is used for determining a driving torque limit curve of the vehicle according to an actual driving scene of the vehicle when the vehicle is identified to enter the novice mode, wherein the driving torque limit curve is a curve of an opening degree of an accelerator pedal and a driving torque, and when the opening degree of an accelerator is the same, the driving torque corresponding to the driving torque limit curve is smaller than the driving torque corresponding to the driving torque curve of the vehicle in a normal driving mode; and the first control module is used for controlling the vehicle to execute the driving action corresponding to the actual driving scene according to the actual opening degree of an accelerator pedal and the driving torque limit curve.

Optionally, in an embodiment of the present application, the first determining module is further configured to: if the actual driving scene is a driving scene, matching a driving torque limit curve of the vehicle to be a first driving torque limit curve according to the driving scene; and if the actual driving scene is a parking scene, matching a driving torque limit curve of the vehicle according to the parking scene to be a second driving torque limit curve, wherein when the opening degree of the accelerator is the same, the driving torque corresponding to the first driving torque limit curve is larger than the driving torque corresponding to the second driving torque limit curve.

Optionally, in an embodiment of the present application, an apparatus in an embodiment of the present application further includes: the first adjusting module is used for identifying the adjusting action of a user on the driving torque limit curve after the driving torque limit curve of the vehicle is determined according to the actual driving scene of the vehicle; and adjusting the limiting degree of the first driving torque limiting curve and/or the second driving torque limiting curve based on the adjusting action to obtain an adjusted driving torque limiting curve.

Optionally, in an embodiment of the present application, when the accelerator opening degree is the same, the driving torque corresponding to the driving torque limit curve is smaller than the driving torque corresponding to the driving torque curve in the normal driving mode.

Optionally, in an embodiment of the present application, the apparatus in the embodiment of the present application further includes: and the second determination module is used for determining the highest vehicle speed limit of the vehicle according to the actual driving scene when the vehicle is identified to enter the novice mode, wherein the highest vehicle speed limit is less than the highest vehicle speed of the vehicle in the normal driving mode.

Optionally, in an embodiment of the present application, the apparatus in the embodiment of the present application further includes: the query module is used for acquiring the accumulated driving mileage of the vehicle when the vehicle is identified to enter the novice mode; and inquiring a preset mileage and vehicle speed relation table by taking the accumulated driving mileage as an index to obtain the highest limited vehicle speed corresponding to the accumulated driving mileage.

Optionally, in an embodiment of the present application, the apparatus of the embodiment of the present application further includes: and the second control module is used for determining a preset energy recovery curve of the vehicle according to the actual driving scene when the vehicle is identified to enter the novice mode, and controlling the vehicle to recover energy by using the preset energy recovery curve, wherein the preset energy recovery curve is a curve of recovery torque and vehicle speed.

Optionally, in an embodiment of the present application, the first determining module is further configured to: if the actual driving scene is a driving scene, matching a preset energy recovery curve of the vehicle as a first energy recovery curve according to the driving scene, wherein when the vehicle speed is the same, the recovery torque corresponding to the first energy recovery curve is larger than the recovery torque corresponding to the energy recovery curve in the normal driving mode; and if the actual driving scene is a parking scene, matching a preset energy recovery curve of the vehicle according to the parking scene to be a second energy recovery curve, wherein when the vehicle speed is the same, the recovery torque corresponding to the second energy recovery curve is smaller than the recovery torque corresponding to the energy recovery curve in the normal driving mode.

Optionally, in an embodiment of the present application, the apparatus in the embodiment of the present application further includes: the second adjusting module is used for identifying the adjusting action of a user on a preset energy recovery curve after the preset energy recovery curve of the vehicle is determined according to the actual driving scene; and adjusting the energy recovery increasing degree of the preset energy recovery curve based on the adjusting action to obtain the adjusted preset energy recovery curve.

Optionally, in an embodiment of the present application, the apparatus in the embodiment of the present application further includes: the calculation module is used for calculating the opening change rate based on the actual opening of the accelerator pedal at any two moments when the vehicle is controlled to execute the driving action corresponding to the actual driving scene according to the actual opening of the accelerator pedal and the driving torque limit curve; and if the opening degree change rate is larger than the opening degree threshold value, triggering the false stepping prevention function of the vehicle, forbidding the vehicle to output the driving torque, and exiting the false stepping prevention function when detecting that the actual opening degree is smaller than the preset opening degree.

Optionally, in an embodiment of the present application, the apparatus in the embodiment of the present application further includes: the first generation module is used for generating a trigger prompt or an exit prompt of the false stepping prevention function when the false stepping prevention function of the vehicle is triggered or the false stepping prevention function exits.

Optionally, in an embodiment of the present application, the apparatus of the embodiment of the present application further includes: the second generation module is used for acquiring the vehicle speed information and/or gear information of the vehicle when the vehicle is controlled to execute the driving action corresponding to the actual driving scene according to the actual opening degree of an accelerator pedal and the driving torque limit curve; and when a preset prompt condition is met, generating a vehicle speed prompt according to the vehicle speed information and/or generating a gear prompt according to the gear information.

Optionally, in an embodiment of the present application, the identification module is further configured to: when the fact that the vehicle meets the mode switching condition is detected, identifying identity information of the driver; if the driver is determined to be a person in a preset information base based on the identity information and the driver is in a new hand mode when driving last time, controlling the vehicle to enter the new hand mode; and if the driver is determined not to be in the preset information base based on the identity information, controlling the vehicle to enter the novice mode based on the entry intention of the driver.

An embodiment of a third aspect of the present application provides a vehicle, comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the novice driving assistance method as described in the above embodiments.

A fourth aspect of the present application provides a computer-readable storage medium, on which a computer program is stored, the program being executed by a processor for implementing the novice driving assistance method as described in the above embodiments.

Therefore, the application has at least the following beneficial effects:

1. the embodiment of the application can determine the driving torque limiting curve according to the actual scene of vehicle driving in the novice mode, and the driving torque is controlled, so that the highest speed limit and the vehicle performance are controlled, the difficulty degree of driving by the novice is reduced, the fault tolerance of driving by the novice is improved, the accident rate of the vehicle is reduced, the safety of driving by the novice is ensured, the excessive requirement of the vehicle on intellectualization is reduced, and the universality of the vehicle is improved.

2. The embodiment of the application can correspond to different driving scenes, and the vehicle is matched with different driving torque limiting curves, so that the adaptability of the driving torque limiting curves of the vehicle to different driving scenes is improved, the driving torque corresponding to the first driving torque limiting curve is large under the driving scenes, the driving performance of the vehicle can be effectively controlled, the vehicle speed is prevented from being out of control, the safety accident rate is reduced, and the driving safety is improved.

3. The embodiment of the application can provide the adjusting function of the driving torque limiting curve, so that a user can adjust the driving torque limiting curve according to requirements, the output power can be increased or reduced, the use requirements of different users are met, and the use experience of the user is improved.

9. According to the embodiment of the application, the driving torque corresponding to the throttle opening can be limited, so that the driving performance of a vehicle is limited, the frequency of back-and-forth switching between throttle brakes is reduced, the fault tolerance rate of driving by a novice is improved, and the safety accident rate is reduced.

5. The embodiment of the application can avoid the vehicle speed of the vehicle to be too fast by limiting the highest vehicle speed of the vehicle under the mode of entering the novice, so that the novice can have sufficient emergency response time when encountering emergency, thereby reducing the incidence of safety accidents and improving the use experience of users.

6. The embodiment of the application can adjust the highest speed limit according to the accumulated driving mileage and continuously adapt to the driving level of a novice, so that the novice can fully obtain the driving experience matched with the current driving level, and the intelligence of a vehicle is improved.

7. The embodiment of the application can determine the preset energy recovery curve of the vehicle according to the actual driving scene in the novice mode, and can recover the energy of the vehicle, so that the adaptability of energy recovery in different driving scenes is improved, the braking performance of the vehicle is improved, and the driving safety of the vehicle is improved.

8. The embodiment of the application can match different energy recovery curves according to different driving scenes, thereby improving the adaptability of the energy recovery curve of the vehicle to different driving scenes, reducing the braking times through increasing the energy recovery of the vehicle, reducing the probability of preventing mistakenly stepping, reducing the accident rate and improving the driving safety.

9. The embodiment of the application can provide the adjusting function of the energy recovery curve, so that a user can adjust the energy recovery curve according to requirements, the current vehicle recovery performance can be increased or reduced, the use requirements of different users are met, and the use experience of the user is improved.

10. According to the embodiment of the application, the mistaken-stepping prevention function of the vehicle can be triggered by comparing the opening degree change rate with the opening degree threshold value, and the vehicle is controlled not to output the driving torque when the mistaken-stepping prevention function is triggered, so that the fault tolerance rate of driving by a novice is improved, and the safety accident rate of vehicle driving is reduced.

11. According to the embodiment of the application, when the mistaken stepping prevention function is triggered or quitted, the vehicle generates the prompt information, and a user can conveniently adjust the mistaken stepping action.

12. The embodiment of the application can generate the speed of a vehicle suggestion according to the speed of a vehicle information of vehicle, has avoided the vehicle to be in the unmatched condition of speed of a vehicle and road conditions for a long time, reduces the incident rate of safety, generates the gear suggestion according to the gear information of vehicle, has avoided the driver to shift gears unsuccessfully, the emergence of the driving problem that leads to, the driver of being convenient for in time knows current vehicle state, promotes the security of driving.

13. The embodiment of the application can control the vehicle to enter the new hand mode by identifying the identity information of the driver, avoid incomplete understanding of the new hand driver on the vehicle function, lead to the problem that the new hand mode cannot be manually selected to enter, and improve the flexibility and the convenience for the vehicle to enter the new hand mode.

Therefore, the technical problems that a novice feels no, the vehicle is difficult to control, the universality of the vehicle and the driving fault-tolerant rate are low, the accident potential safety hazard exists, the driving experience of a driver is poor and the like in the related technology are solved.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a block diagram of a system of a novice mode functional architecture according to an embodiment of the present application;

fig. 2 is a system block diagram of an internal functional architecture of a VCU (Vehicle Control Unit) in a new hand mode according to an embodiment of the present application;

FIG. 3 is a flow chart of a novice driving assistance method provided according to an embodiment of the application;

FIG. 4 is a flow chart illustrating how a novice mode enters conditions provided by an embodiment of the present application;

FIG. 5 is a driving trend comparison graph of a novice mode, a parking mode and a normal driving mode provided according to an embodiment of the application;

FIG. 6 is a chart comparing the recovery trends of the novice mode, the parking mode and the normal driving mode provided by the embodiment of the application;

FIG. 7 is a flowchart illustrating a parking mode operation according to an embodiment of the present application;

FIG. 8 is an exemplary diagram of a novice driving assistance device provided according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a vehicle according to an embodiment of the present application.

Detailed Description

Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present application and should not be construed as limiting the present application.

A novice driving assistance method, apparatus, vehicle, and storage medium of the embodiments of the present application are described below with reference to the drawings. In view of the problems mentioned in the background art described above, the present application provides a novice driving assist method in which a vehicle is driven by recognizing whether the vehicle enters a novice mode; when the vehicle is identified to enter the novice mode, determining a driving torque limit curve of the vehicle according to an actual driving scene of the vehicle, wherein the driving torque limit curve is a curve of the opening degree of an accelerator pedal and the driving torque, and when the opening degree of an accelerator is the same, the driving torque corresponding to the driving torque limit curve is smaller than the driving torque corresponding to the driving torque curve of the vehicle in a normal driving mode; and controlling the vehicle to execute a driving action corresponding to an actual driving scene according to the actual opening degree of the accelerator pedal and the driving torque limit curve. Therefore, the problems that a novice in the related art does not have a vehicle feeling and is difficult to control the vehicle, the universality of the vehicle and the fault-tolerant rate of driving are low, potential safety hazards exist, the driving experience is not good and the like are solved.

An embodiment of the present application provides a novice mode functional architecture system, as shown in fig. 1, specifically including: VCU, CDC (intelligent cabin Domain Controller), ESP (Electronic Stability Program), IPU (Instruction Processing Unit), wherein the system is implemented by the VCU main control and the rest of the controllers.

Specifically, the specific functions of the VCU are shown in fig. 2, where the VCU is responsible for acquiring and calculating an accelerator pedal opening signal, acquiring and calculating a gear signal, determining a novice mode entry and exit condition, calculating a driver torque demand and calculating a motor end torque demand in the novice mode, calculating a driver torque demand and calculating a motor end torque demand in the parking mode, determining a vehicle speed voice prompt logic, determining a gear voice prompt logic, determining a false stepping prevention function trigger condition, calculating a driver torque demand and calculating a motor end torque demand in the false stepping prevention function, and the like.

In addition, the CDC is used for displaying relevant functions of a novice mode, transmitting relevant information selected by a driver, such as the highest vehicle speed limit, whether to enter the novice mode and the like, to the VCU, and then prompting the driver with prompt information required by the VCU in a voice mode; the ESP is used for providing the acquired vehicle speed information to the VCU; the IPU is used to account for the motor torque required to achieve the VCU.

Based on the novice mode functional architecture system, the driving assistance method for novice driving is explained in detail by some embodiments, as shown in fig. 3, and includes the following steps:

in step S101, it is recognized whether the vehicle enters a beginner mode.

It can be understood that, in the embodiment of the application, human-computer interaction can be performed through a human-computer interaction interface such as a vehicle-mounted display screen, so as to identify whether the vehicle enters a new hand mode, for example, whether a driver enters the new hand mode is queried by using text information on a screen, the driver can select yes/no, and then, human-computer conversation and the like can be performed through an intelligent voice system without specific limitation.

Optionally, in an embodiment of the present application, identifying whether the vehicle enters a novice mode includes: when the vehicle is detected to meet the mode switching condition, identifying the identity information of the driver; if the driver is determined to be a person in the preset information base based on the identity information and the driver is in the new hand mode when driving last time, controlling the vehicle to enter the new hand mode; and if the driver is determined not to be in the preset information base based on the identity information, controlling the vehicle to enter a novice mode based on the entry intention of the driver.

The preset information base can be set according to specific actual conditions, and the content of the information base can include an account number, a fingerprint, face information and the like, without specific limitation.

It can be understood that the vehicle can be controlled to enter the new hand mode by identifying the identity information of the driver, the problem that the new hand driver cannot manually select to enter the new hand mode due to incomplete understanding of the vehicle function is avoided, and the flexibility and the convenience of the vehicle entering the new hand mode are improved.

Specifically, as shown in fig. 4, the entry condition of the novice mode may include: the vehicle state is changed from a non-drivable state to a drivable state; the vehicle is in P gear; the method comprises the steps of obtaining identity information of a driver, such as an account number, a fingerprint, face information and the like, comparing the identity information with a driver information base, jumping out an option on a CDC if the driver information does not exist in the information base, inquiring whether the driver needs to enter a new hand mode, entering the new hand mode if the driver selects 'yes', and automatically entering the new hand mode if the driver information exists in the information base and the driver selects the new hand mode to start in the last driving cycle.

The exit condition for the novice mode may be that the driver may select exit of the novice mode on the CDC when the vehicle is in the P range state.

In step S102, when it is recognized that the vehicle enters the novice mode, a driving torque limit curve of the vehicle is determined according to an actual driving scene of the vehicle, where the driving torque limit curve is a curve of an opening degree of an accelerator pedal and a driving torque, and when an opening degree of an accelerator is the same, a driving torque corresponding to the driving torque limit curve is smaller than a driving torque corresponding to a driving torque curve of the vehicle in a normal driving mode.

The driving torque in the embodiment of the application refers to the torque output by an automobile engine from a crankshaft end, and is in inverse proportion to the engine rotation speed under the condition of fixed power, the faster the rotation speed is, the smaller the torque is, and the larger the torque is, so that the performances of the automobile, such as acceleration, climbing capacity, suspension and the like, are reflected to a certain extent.

It can be understood that, in the embodiment of the present application, when the vehicle enters the new hand mode, the driving torque limit curve of the vehicle may be set according to the actual driving scenario, so as to control the maximum vehicle speed and the driving performance of the vehicle, specifically, the driving torque in the new hand mode is smaller than the driving torque in the normal mode, for example, the maximum vehicle speed and the driving performance in the new hand mode are generally smaller than the maximum vehicle speed and the driving performance in the normal driving mode.

It should be noted that, in the embodiment of the present application, after it is recognized that the vehicle enters the beginner mode, the maximum vehicle speed limit may be determined in various ways, which may be a preset fixed value or an adaptive adjustment value, and is not particularly limited.

As a possible implementation manner, when it is recognized that the vehicle enters the novice mode, the method further includes: and determining the highest vehicle speed limit of the vehicle according to the actual driving scene, wherein the highest vehicle speed limit is less than the highest vehicle speed of the vehicle in the normal driving mode.

It can be understood that this application embodiment can be under getting into the new hand mode, through the highest speed of a motor vehicle of restriction vehicle, avoids the speed of a motor vehicle of vehicle too fast for the new hand can have sufficient emergent reaction time when meetting emergency, thereby can reduce the incident incidence, promotes user's use and experiences.

Specifically, after entering the novice driving mode, the CDC guides the driver to select the maximum vehicle speed at which the vehicle is restricted from traveling, and when the vehicle reaches the maximum vehicle speed limit, the angle at which the driver steps on the accelerator pedal is continuously increased, the vehicle is maintained at the maximum vehicle speed limit, and when the driver releases the accelerator pedal, the vehicle starts energy recovery, and the vehicle speed decreases accordingly.

The specific control method comprises the following steps: the VCU obtains a current vehicle speed V sent by the ESP and a maximum limit vehicle speed V0 set on the CDC, and calculates a maximum driver demand torque limit value A under the current maximum limit vehicle speed by adopting a PID (proportional, integral and derivative) algorithm according to the V0 and the V. The method comprises the steps of limiting the required torque of a driver through a maximum required torque limiting value A of the driver so as to obtain the required torque of a motor, wherein the required torque of the driver can be obtained by table look-up according to the opening degree of an accelerator pedal and the current vehicle speed. Driver maximum demand torque limit

KP (Keep proportional), KI (Keep Integral) and KD (Keep Differential coefficient) are proportional parameters, integral parameters and Differential parameters in PID respectively; e (t) = V0-V; t is a time constant, driver demand torque = torque value of accelerator pedal opening and current vehicle speed look-up table, driver final demand torque = min { driver maximum demand torque limit a, novice mode driver demand torque }, motor demand torque = driver final demand torque/gear ratio.

As another possible implementation manner, when it is recognized that the vehicle enters the novice mode, the method further includes: acquiring the accumulated driving mileage of the vehicle; and inquiring a preset mileage and vehicle speed relation table by taking the accumulated driving mileage as an index to obtain the highest limited vehicle speed corresponding to the accumulated driving mileage.

The preset mileage and vehicle speed relation meter can be specifically set according to the actual condition of a novice, and is not specifically limited.

It can be understood that the highest speed limit can be adjusted according to the accumulated driving mileage, the driving level of a novice can be continuously adapted to, the novice can fully obtain the driving experience matched with the current driving level, and the intelligence of the vehicle is improved.

Specifically, in the novice mode, the driver may choose to fix the vehicle speed limit, and may also control the vehicle to actively gradually release the vehicle speed limit as the traveled distance accumulates, and while releasing the vehicle speed limit, the CDC may notify the driver with a voice, such as: "your accumulated mileage is 2000 km, the highest limit vehicle speed is released to 80", and the like, wherein the table of the preset mileage and the vehicle speed is shown in table 1.

TABLE 1

Accumulated mileage in driving	500	2000	5000	20000
					Maximum vehicle speed limit	65	80	90	120

Optionally, in an embodiment of the present application, determining a driving torque limit curve of the vehicle according to an actual driving scenario of the vehicle includes: if the actual driving scene is a driving scene, matching a driving torque limit curve of the vehicle according to the driving scene to be a first driving torque limit curve; and if the actual driving scene is a parking scene, matching the driving torque limit curve of the vehicle according to the parking scene to be a second driving torque limit curve, wherein when the opening degree of the accelerator is the same, the driving torque corresponding to the first driving torque limit curve is larger than the driving torque corresponding to the second driving torque limit curve.

The first driving torque limit curve and the second driving torque limit curve may be used to distinguish different driving torque curves, and are not particularly limited.

It can be understood that this application embodiment can correspond different driving scenes, the vehicle matches different drive torque limit curves, thereby promote the drive torque limit curve of vehicle to the suitability of different driving scenes, under the driving scene, the drive torque that first drive torque limit curve corresponds is great, can the drive performance of effective control vehicle, avoid the speed of a motor vehicle out of control, avoid simultaneously because the speeding leads to the novice to rely on frequently switching the throttle and braking to maintain the speed of a motor vehicle, thereby increase the probability of stepping on by mistake, reduce the incident incidence, promote the security of driving a vehicle.

If the actual driving scene is recognized as the parking scene, the vehicle gives a prompt to the driver to enter the parking mode.

Specifically, as shown in fig. 5, 6, and 7, in the novice mode, the VCU may acquire the driver target gear by collecting gear information, and when the driver target gear is R, the CDC jumps out of the option box and, along with a voice prompt, asks the driver: "need to enter park mode", if the driver chooses "yes", the CDC transmits this choice to VCU, and VCU carries on the further restriction to driver's required torque, when the driver sets the gear to P gear, park mode and exit, and the voice reminds the driver: "parking is completed, parking mode exits".

It can be understood that the embodiment of the application can provide the adjusting function of the driving torque limiting curve, so that a user can adjust the driving torque limiting curve according to requirements, the output power can be increased or reduced, the using requirements of different users are met, and the using experience of the user is improved.

Specifically, as shown in fig. 5, when the driver selects to enter the novice mode, the CDC informs the driver that the current driving torque is limited, and gives an initial limit degree of 50%, and the driver can adjust the limit degree steplessly in the CDC, which is detailed in the following with specific data, when the limit degree is 0%, B corresponds to the driving force of the normal driving mode, such as 70%, and when the limit degree is 100%, C corresponds to the driving force of the normal driving mode, such as 90%, where C is smaller than B, and the peak value is reduced, the driving response time is increased, thereby increasing the fault tolerance rate of the driver operation and reducing the accident occurrence rate. Wherein the novice mode driver demand drive torque = normal mode driver demand drive torque (C + X (B-C)/100)/100, where X is a degree of restriction of driver adjustment. Secondly, in the novice mode, the driving performance limit cannot be actively released along with the accumulation of the driving mileage, and the driver is required to stop and engage the P gear before the driver can actively adjust the driving performance limit.

It can be understood that the driving performance of the vehicle can be limited by limiting the driving torque corresponding to the throttle opening, the frequency of back-and-forth switching between the throttle brakes is reduced, the fault tolerance rate of driving by a novice is improved, and the safety accident rate is reduced.

Optionally, in an embodiment of the present application, when it is recognized that the vehicle enters the novice mode, the method further includes: the method comprises the steps of determining a preset energy recovery curve of a vehicle according to an actual driving scene, and controlling the vehicle to recover energy by using the preset energy recovery curve, wherein the preset energy recovery curve is a curve of recovery torque and vehicle speed.

It can be understood that the embodiment of the application can determine the preset energy recovery curve of the vehicle according to the actual driving scene in the novice mode, and recover the energy of the vehicle, so that the adaptability of energy recovery in different driving scenes is improved, the braking performance of the vehicle is improved, and the driving safety of the vehicle is improved.

Optionally, in an embodiment of the present application, determining the preset energy recovery curve of the vehicle according to the actual driving scenario includes: if the actual driving scene is a driving scene, matching a preset energy recovery curve of the vehicle according to the driving scene to be a first energy recovery curve, wherein when the vehicle speed is the same, the recovery torque corresponding to the first energy recovery curve is larger than the recovery torque corresponding to the energy recovery curve in the normal driving mode; and if the actual driving scene is a parking scene, matching a preset energy recovery curve of the vehicle according to the parking scene to be a second energy recovery curve, wherein when the vehicle speed is the same, the recovery torque corresponding to the second energy recovery curve is smaller than the recovery torque corresponding to the energy recovery curve in the normal driving mode.

The first energy recovery curve and the second energy recovery curve may be used to distinguish different energy recovery curves, and are not limited in particular.

It can be understood that different energy recovery curves can be matched according to different driving scenes in the embodiment of the application, so that the adaptability of the energy recovery curve of the vehicle to different driving scenes is improved, the energy recovery of the vehicle is increased, the braking times are reduced, the probability of mistaken stepping is reduced, the safety accident occurrence rate is reduced, and the driving safety is improved.

Optionally, in an embodiment of the present application, after determining the preset energy recovery curve of the vehicle according to the actual driving scenario, the method further includes: recognizing the adjustment action of a user on a preset energy recovery curve; and adjusting the energy recovery increasing degree of the preset energy recovery curve based on the adjusting action to obtain the adjusted preset energy recovery curve.

It can be understood that the embodiment of the application can provide the adjusting function of the energy recovery curve, so that a user can adjust the energy recovery curve according to the requirement, the current vehicle recovery performance can be increased or reduced, the use requirements of different users are met, and the use experience of the user is improved.

Specifically, as shown in fig. 6, when the driver selects to enter the novice mode, the CDC informs the driver that the current recovery torque will increase and gives an initial increase degree of 50%, and the driver can perform a stepless adjustment of the increase degree on the CDC, which is described in detail below with specific data, when the increase degree is 0%, D corresponding to the recovery force in the normal driving mode is, e.g., 100%, and when the increase degree is 100%, E corresponding to the recovery force in the normal driving mode is, e.g., 150%, where D is smaller than E, and by adjusting the curve of the recovery torque, the braking response time is shortened, thereby reducing the braking distance and the accident rate. Wherein, the new hand mode driver demand recovery torque = the normal mode driver demand recovery torque (D + X (E-D)/100)/100, and secondly, the recovery performance adjustment is not actively released along with the accumulation of the driving mileage, and the driver is required to stop and engage the P range before the active adjustment is possible.

In step S103, the vehicle is controlled to perform a driving action corresponding to an actual driving scenario according to the actual opening degree of the accelerator pedal and the driving torque limit curve.

It can be understood that the embodiment of the application can control the performance of the vehicle by controlling the opening degree of the accelerator pedal based on the driving torque limit curve, so as to improve the driving safety of the vehicle.

Optionally, in an embodiment of the application, when the vehicle is controlled to perform a driving action corresponding to an actual driving scenario according to the actual opening degree of the accelerator pedal and the driving torque limit curve, the method further includes: calculating an opening degree change rate based on the actual opening degree of the accelerator pedal at any two moments; if the opening degree change rate is larger than the opening degree threshold value, triggering the false stepping prevention function of the vehicle, forbidding the vehicle to output the driving torque, and exiting the false stepping prevention function when the detected actual opening degree is smaller than the preset opening degree.

It can be understood that, in the embodiment of the application, whether the false stepping prevention function of the vehicle is triggered or not can be determined by comparing the opening degree change rate with the opening degree threshold value, and when the false stepping prevention function is triggered, the vehicle is controlled not to output the driving torque, so that the fault tolerance rate of new driver driving is improved, and the safety accident rate of vehicle driving is reduced.

Specifically, in the novice mode, the false stepping prevention sensitivity Z is configured on the CDC, and Z may be 0 to 100%, and is not specifically limited, wherein the closer Z is to 0%, the less the false stepping prevention function is triggered, the more difficult the VCU collects the opening degree of the accelerator pedal, and calculates the change rate of the opening degree of the accelerator pedal, when the change rate of the opening degree is higher than a certain value F, F may be specifically set according to actual conditions, and is not specifically limited, the situation that the driver mistakenly steps on the accelerator is identified, and then the VCU limits the torque required by the driver to 0Nm. Wherein the accelerator pedal opening change rate theta ^’ ＝(θ ₁ -θ ₀ ) /dt, wherein θ ₁ For the current accelerator pedalOpening degree, theta ₀ The opening degree of an accelerator pedal before dt is the interval time, and the false stepping prevention function triggering condition can be theta ^’ ≥(F ₁₀₀ -F ₀ )Z+F ₀ Wherein F is ₁₀₀ Is the corresponding accelerator pedal change rate trigger value at sensitivity of 100%, F ₀ The value is the corresponding accelerator pedal change rate trigger value when the sensitivity is 0%.

It can be understood that, when the mistaken-stepping prevention function is triggered or quitted, the vehicle generates prompt information, and a user can conveniently adjust the mistaken-stepping action.

Specifically, when the false stepping prevention function is triggered, the VCU sends the false stepping prevention trigger flag to the CDC, and the CDC reminds the driver through voice and text, for example: "prevent mistake and step on function activation, the unpowered output of vehicle", if VCU detects that the driver unclamps accelerator pedal, then automatic withdraw from and prevent mistake and step on the function to will prevent mistake and step on and withdraw from the marker bit and send to CDC, CDC reminds the driver through pronunciation and characters, for example: the anti-misstep function exits.

Optionally, in an embodiment of the present application, when the vehicle is controlled to perform a driving action corresponding to an actual driving scenario according to the actual opening degree of the accelerator pedal and the driving torque limit curve, the method further includes: acquiring vehicle speed information and/or gear information of a vehicle; and when the preset prompt condition is met, generating a vehicle speed prompt according to the vehicle speed information and/or generating a gear prompt according to the gear information.

It can be understood that the vehicle speed prompt can be generated according to the vehicle speed information of the vehicle, the situation that the vehicle is in a state of unmatched vehicle speed and road conditions for a long time due to negligence of a driver is avoided, the safety accident rate is reduced, the gear prompt is generated according to the gear information of the vehicle, the driving problem caused by unsuccessful gear shifting of the driver is avoided, the driver can know the current vehicle state in time, and the driving safety is improved.

Specifically, if the VCU detects the target gear switching behavior of the driver, the voice prompt of the gear is triggered to prompt the driver of the current actual gear, and the safety problem caused by the fact that the driver mistakenly thinks that the gear shifting is successful and carries out the next operation after the gear shifting fails under certain conditions is avoided. When the vehicle speed is higher than 60km/h, the VCU performs staged triggering vehicle speed information prompt, and sends the triggering flag bit and the vehicle speed information to the CDC, and the voice prompt of the vehicle speed information is realized through the CDC, which is specifically described below, for example, in a vehicle speed interval of more than 60km/h, the vehicle speed interval is divided into N vehicle speed sections according to 10km/h, and when the driving vehicle speed enters any stage, the driver is prompted by voice, such as: the current vehicle speed is 55km/h, please drive cautiously, and each vehicle speed section is only reminded once, wherein, the driver can set the vehicle speed information prompting vehicle speed section size on the CDC, and supports the driver to select the vehicle speed sections of 10km/h, 20km/h, 30km/h and close, if the driver selects close, the vehicle speed information prompting function is closed.

According to the novice driving assisting method provided by the embodiment of the application, whether the vehicle enters a novice mode is identified, when the vehicle is identified to enter the novice mode, a driving torque limit curve of the vehicle is determined according to an actual driving scene of the vehicle, wherein the driving torque limit curve is a curve of the opening degree of an accelerator pedal and the driving torque, when the opening degree of an accelerator is the same, the driving torque corresponding to the driving torque limit curve is smaller than the driving torque corresponding to the driving torque curve of the vehicle in a normal driving mode, and the vehicle is controlled to execute the driving action corresponding to the actual driving scene according to the actual opening degree of the accelerator pedal and the driving torque limit curve. Therefore, the problems that a novice feels no vehicle feeling and the control of the vehicle is difficult, the universality of the vehicle and the fault tolerance rate of driving are low, accident potential safety hazards exist, the driving experience of a driver is poor and the like in the related technology are solved.

Next, a driving assistance device by a novice proposed according to an embodiment of the present application is described with reference to the drawings.

Fig. 8 is a block diagram schematically illustrating a driving assistance device for a novice driver according to an embodiment of the present application.

As shown in fig. 8, the novice driving assistance device 10 includes: an identification module 100, a first determination module 200, and a first control module 300.

The identification module 100 is used for identifying whether the vehicle enters a beginner mode; the first determining module 200 is configured to determine a driving torque limit curve of the vehicle according to an actual driving scene of the vehicle when it is identified that the vehicle enters the novice mode, where the driving torque limit curve is a curve of an opening degree of an accelerator pedal and a driving torque, and when an opening degree of an accelerator is the same, a driving torque corresponding to the driving torque limit curve is smaller than a driving torque corresponding to a driving torque curve of the vehicle in a normal driving mode; the first control module 300 is used for controlling the vehicle to execute a driving action corresponding to an actual driving scene according to the actual opening degree of the accelerator pedal and the driving torque limit curve.

Optionally, in an embodiment of the present application, the first determining module 200 is further configured to: if the actual driving scene is a driving scene, matching a driving torque limit curve of the vehicle according to the driving scene to be a first driving torque limit curve; and if the actual driving scene is a parking scene, matching the driving torque limit curve of the vehicle according to the parking scene to be a second driving torque limit curve, wherein when the opening degree of the accelerator is the same, the driving torque corresponding to the first driving torque limit curve is larger than the driving torque corresponding to the second driving torque limit curve.

Optionally, in an embodiment of the present application, the apparatus 10 of the embodiment of the present application further includes: a first adjustment module.

The first adjusting module is used for identifying the adjusting action of a user on the driving torque limit curve after the driving torque limit curve of the vehicle is determined according to the actual driving scene of the vehicle; adjusting the degree of limitation of the first drive torque limit curve and/or the second drive torque limit curve based on the adjustment action, resulting in an adjusted drive torque limit curve.

Alternatively, in an embodiment of the present application, when the accelerator opening degree is the same, the driving torque limit curve corresponds to a driving torque that is smaller than a driving torque corresponding to a driving torque curve in the normal driving mode.

Optionally, in an embodiment of the present application, the apparatus 10 of the embodiment of the present application further includes: a second determination module.

The second determining module is used for determining the highest vehicle speed limit of the vehicle according to an actual driving scene when the vehicle is identified to enter the novice mode, wherein the highest vehicle speed limit is smaller than the highest vehicle speed of the vehicle in the normal driving mode.

Optionally, in an embodiment of the present application, the apparatus 10 of the embodiment of the present application further includes: and (5) a query module.

The inquiry module is used for acquiring the accumulated driving mileage of the vehicle when recognizing that the vehicle enters a beginner mode; and inquiring a preset mileage and vehicle speed relation table by taking the accumulated driving mileage as an index to obtain the highest limited vehicle speed corresponding to the accumulated driving mileage.

Optionally, in an embodiment of the present application, the apparatus 10 of the embodiment of the present application further includes: and a second control module.

The second control module is used for determining a preset energy recovery curve of the vehicle according to an actual driving scene when the vehicle is recognized to enter a novice mode, and controlling the vehicle to recover energy by using the preset energy recovery curve, wherein the preset energy recovery curve is a curve of recovery torque and vehicle speed.

Optionally, in an embodiment of the present application, the first determining module 200 is further configured to: if the actual driving scene is a driving scene, matching a preset energy recovery curve of the vehicle according to the driving scene to be a first energy recovery curve, wherein when the vehicle speed is the same, the recovery torque corresponding to the first energy recovery curve is larger than the recovery torque corresponding to the energy recovery curve in the normal driving mode; and if the actual driving scene is the parking scene, matching the preset energy recovery curve of the vehicle according to the parking scene to be a second energy recovery curve, wherein when the vehicle speed is the same, the recovery torque corresponding to the second energy recovery curve is smaller than the recovery torque corresponding to the energy recovery curve in the normal driving mode.

Optionally, in an embodiment of the present application, the apparatus 10 of the embodiment of the present application further includes: and a second adjusting module.

The second adjusting module is used for identifying the adjusting action of a user on a preset energy recovery curve after the preset energy recovery curve of the vehicle is determined according to the actual driving scene; and adjusting the energy recovery increasing degree of the preset energy recovery curve based on the adjusting action to obtain the adjusted preset energy recovery curve.

Optionally, in an embodiment of the present application, the apparatus 10 of the embodiment of the present application further includes: the calculation module is used for calculating the opening change rate based on the actual opening of the accelerator pedal at any two moments when the vehicle is controlled to execute the driving action corresponding to the actual driving scene according to the actual opening of the accelerator pedal and the driving torque limit curve; and if the opening degree change rate is greater than the opening degree threshold value, triggering the false stepping prevention function of the vehicle, forbidding the vehicle to output the driving torque, and exiting the false stepping prevention function when the detected actual opening degree is less than the preset opening degree.

Optionally, in an embodiment of the present application, the apparatus 10 of the embodiment of the present application further includes: a first generation module.

The first generation module is used for generating a trigger prompt or an exit prompt of the false stepping prevention function when the false stepping prevention function of the vehicle is triggered or the false stepping prevention function exits.

Optionally, in an embodiment of the present application, the apparatus 10 of the embodiment of the present application further includes: and a second generation module.

The second generation module is used for acquiring the vehicle speed information and/or gear information of the vehicle when the vehicle is controlled to execute the driving action corresponding to the actual driving scene according to the actual opening degree of the accelerator pedal and the driving torque limit curve; and when the preset prompt condition is met, generating a vehicle speed prompt according to the vehicle speed information and/or generating a gear prompt according to the gear information.

Optionally, in an embodiment of the present application, the identification module 100 is further configured to: when the vehicle is detected to meet the mode switching condition, identifying the identity information of the driver; if the driver is determined to be a person in the preset information base based on the identity information and the driver is in the new hand mode when driving last time, controlling the vehicle to enter the new hand mode; and if the driver is determined not to be in the preset information base based on the identity information, controlling the vehicle to enter a novice mode based on the entry intention of the driver.

It should be noted that the foregoing explanation of the embodiment of the driving assistance method for a novice driver is also applicable to the driving assistance device for a novice driver of this embodiment, and is not repeated here.

According to the novice driving assisting device provided by the embodiment of the application, whether the vehicle enters the novice mode or not is identified, when the vehicle is identified to enter the novice mode, a driving torque limiting curve of the vehicle is determined according to an actual driving scene of the vehicle, wherein the driving torque limiting curve is a curve of an opening degree of an accelerator pedal and a driving torque, when the opening degree of an accelerator is the same, the driving torque corresponding to the driving torque limiting curve is smaller than the driving torque corresponding to the driving torque curve of the vehicle in a normal driving mode, and the vehicle is controlled to execute a driving action corresponding to the actual driving scene according to the actual opening degree of the accelerator pedal and the driving torque limiting curve. Therefore, the problems that a novice feels no vehicle feeling and the control of the vehicle is difficult, the universality of the vehicle and the fault tolerance rate of driving are low, accident potential safety hazards exist, the driving experience of a driver is poor and the like in the related technology are solved.

Fig. 9 is a schematic structural diagram of a vehicle according to an embodiment of the present application. The vehicle may include:

a memory 901, a processor 902 and a computer program stored on the memory 901 and executable on the processor 902.

The processor 902, when executing the program, implements the novice driving assistance method provided in the above-described embodiments.

Further, the vehicle further includes:

a communication interface 903 for communication between the memory 901 and the processor 902.

A memory 901 for storing computer programs executable on the processor 902.

The Memory 901 may include a high-speed RAM (Random Access Memory) Memory, and may also include a nonvolatile Memory, such as at least one disk Memory.

If the memory 901, the processor 902, and the communication interface 903 are implemented independently, the communication interface 903, the memory 901, and the processor 902 may be connected to each other through a bus and perform communication with each other. The bus may be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component interconnect) bus, an EISA (Extended Industry Standard Architecture) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 9, but this does not indicate only one bus or one type of bus.

Optionally, in a specific implementation, if the memory 901, the processor 902, and the communication interface 903 are integrated on one chip, the memory 901, the processor 902, and the communication interface 903 may complete mutual communication through an internal interface.

The processor 902 may be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), or one or more Integrated circuits configured to implement embodiments of the present Application.

Embodiments of the present application also provide a computer-readable storage medium on which a computer program is stored, which, when executed by a processor, implements the above novice driving assistance method.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or N embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "N" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more N executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of implementing the embodiments of the present application.

It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a programmable gate array, a field programmable gate array, or the like.

It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware that is related to instructions of a program, and the program may be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. A novice driving assist method characterized by comprising the steps of:

identifying whether the vehicle enters a beginner mode;

when the vehicle is identified to enter the novice mode, determining a driving torque limit curve of the vehicle according to an actual driving scene of the vehicle, wherein the driving torque limit curve is a curve of an opening degree of an accelerator pedal and driving torque, and when the opening degree of an accelerator is the same, the driving torque corresponding to the driving torque limit curve is smaller than the driving torque corresponding to the driving torque curve of the vehicle in a normal driving mode;

and controlling the vehicle to execute the driving action corresponding to the actual driving scene according to the actual opening degree of an accelerator pedal and the driving torque limit curve.

2. The method of claim 1, wherein determining a drive torque limit curve for the vehicle based on actual driving scenarios of the vehicle comprises:

if the actual driving scene is a driving scene, matching a driving torque limit curve of the vehicle to be a first driving torque limit curve according to the driving scene;

and if the actual driving scene is a parking scene, matching a driving torque limit curve of the vehicle according to the parking scene to be a second driving torque limit curve, wherein when the opening degree of the accelerator is the same, the driving torque corresponding to the first driving torque limit curve is larger than the driving torque corresponding to the second driving torque limit curve.

3. The method of claim 2, further comprising, after determining a drive torque limit curve for the vehicle based on actual driving scenarios of the vehicle:

identifying a user's adjustment action for the drive torque limit curve;

and adjusting the limiting degree of the first driving torque limiting curve and/or the second driving torque limiting curve based on the adjusting action to obtain an adjusted driving torque limiting curve.

4. A method according to any one of claims 1-3, characterized in that the driving torque limit curve corresponds to a driving torque which is smaller than the driving torque curve in the normal driving mode when the throttle opening is the same.

5. The method of claim 1, upon identifying that the vehicle enters the novice mode, further comprising:

and determining the highest vehicle speed limit of the vehicle according to the actual driving scene, wherein the highest vehicle speed limit is less than the highest vehicle speed of the vehicle in a normal driving mode.

6. The method of claim 1 or 5, upon identifying that the vehicle enters the novice mode, further comprising:

acquiring the accumulated driving mileage of the vehicle;

and inquiring a preset mileage and vehicle speed relation table by taking the accumulated driving mileage as an index to obtain the highest limited vehicle speed corresponding to the accumulated driving mileage.

7. The method of claim 1, upon identifying that the vehicle enters the novice mode, further comprising:

determining a preset energy recovery curve of the vehicle according to the actual driving scene, and controlling the vehicle to recover energy by using the preset energy recovery curve, wherein the preset energy recovery curve is a curve of recovery torque and vehicle speed.

8. The method of claim 7, wherein said determining a preset energy recovery curve for the vehicle based on the actual driving scenario comprises:

if the actual driving scene is a driving scene, matching a preset energy recovery curve of the vehicle according to the driving scene to be a first energy recovery curve, wherein when the vehicle speed is the same, the recovery torque corresponding to the first energy recovery curve is larger than the recovery torque corresponding to the energy recovery curve in the normal driving mode;

and if the actual driving scene is a parking scene, matching a preset energy recovery curve of the vehicle according to the parking scene to be a second energy recovery curve, wherein when the vehicle speed is the same, the recovery torque corresponding to the second energy recovery curve is smaller than the recovery torque corresponding to the energy recovery curve in the normal driving mode.

9. The method according to claim 7 or 8, further comprising, after determining a preset energy recovery curve for the vehicle from the actual driving scenario:

identifying an adjusting action of a user on the preset energy recovery curve;

and adjusting the energy recovery increasing degree of the preset energy recovery curve based on the adjusting action to obtain the adjusted preset energy recovery curve.

10. The method according to claim 1, characterized in that, when controlling the vehicle to perform a driving action corresponding to the actual driving scenario according to the actual opening degree of an accelerator pedal and the driving torque limit curve, further comprising:

calculating an opening degree change rate based on the actual opening degree of the accelerator pedal at any two moments;

and if the opening degree change rate is larger than the opening degree threshold value, triggering the false stepping prevention function of the vehicle, forbidding the vehicle to output the driving torque, and exiting the false stepping prevention function when detecting that the actual opening degree is smaller than the preset opening degree.

11. The method of claim 10, wherein when the false step prevention function of the vehicle is triggered or exited, further comprising:

and generating a triggering prompt or an exit prompt of the false stepping prevention function.

12. The method according to claim 1, wherein, when controlling the vehicle to perform the driving action corresponding to the actual driving scenario according to the actual opening degree of an accelerator pedal and the driving torque limit curve, further comprising:

acquiring the speed information and/or gear information of the vehicle;

and when a preset prompt condition is met, generating a vehicle speed prompt according to the vehicle speed information and/or generating a gear prompt according to the gear information.

13. The method of claim 1, wherein the identifying whether the vehicle enters a novice mode comprises:

when the fact that the vehicle meets the mode switching condition is detected, identifying identity information of the driver;

if the driver is determined to be a person in a preset information base based on the identity information and the driver is in a new hand mode when driving last time, controlling the vehicle to enter the new hand mode;

and if the driver is determined not to be in the preset information base based on the identity information, controlling the vehicle to enter the novice mode based on the entry intention of the driver.

14. A novice driving assistance apparatus characterized by comprising:

the identification module is used for identifying whether the vehicle enters a novice mode or not;

the first determination module is used for determining a driving torque limit curve of the vehicle according to an actual driving scene of the vehicle when the vehicle is identified to enter the novice mode, wherein the driving torque limit curve is a curve of an opening degree of an accelerator pedal and a driving torque, and when the opening degree of an accelerator is the same, the driving torque corresponding to the driving torque limit curve is smaller than the driving torque corresponding to the driving torque curve of the vehicle in a normal driving mode;

and the first control module is used for controlling the vehicle to execute the driving action corresponding to the actual driving scene according to the actual opening degree of an accelerator pedal and the driving torque limit curve.

15. A vehicle, characterized by comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the novice driving assistance method of any one of claims 1-13.

16. A computer-readable storage medium, on which a computer program is stored, which program is executable by a processor for implementing a novice driving assistance method as claimed in any one of claims 1 to 13.