Steering control method and device, electronic equipment and storage medium

Abstract

The invention provides a steering control method and device, electronic equipment and a storage medium, and relates to the technical field of vehicle steering. The steering control method comprises the following steps: comparing obtained identity information of a driver with pre-stored information in a database; when the identity information is consistent with the pre-stored information, determining a steering damping parameter of a steering wheel according to the identity information; when the identity information is inconsistent with the pre-stored information, determining the steering damping parameter according to the posture characteristics of the driver and the whole vehicle state information; and adjusting the damping force of the steering wheel according to the steering damping parameter. According to the invention, a matched steering hand feeling can be provided for a driver, for example, for a male driver, a heavier steering hand feeling is generally needed, and for a female driver, a lighter steering hand feeling is generally needed, so that the control feeling and interestingness of the driver in controlling a vehicle are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle steering, and in particular to a steering control method, device, electronic equipment and storage medium. Background Art

[0002] Steering feel refers to the steering resistance and feedback force felt by the driver when operating the steering wheel, which is mainly determined by the vehicle's steering system (such as mechanical power steering, hydraulic power steering or electronic power steering system); when the vehicle leaves the factory, the steering force and feel settings are usually fixed and determined based on certain standards or tests to ensure that most drivers can feel appropriate control feedback during normal driving.

[0003] However, due to different preferences of different drivers, they may have different perceptions of the steering feel. Some may feel that the steering feel is heavy and requires more effort to turn the steering wheel, while others may feel that the steering feel is too light and difficult to provide sufficient control feel and road feedback. The factory-set steering feel cannot meet the needs of all users, affecting driving comfort and user satisfaction. Summary of the invention

[0004] The problem solved by the present invention is how to provide a matching steering feel for the driver.

[0005] In order to solve the above problems, the present invention provides a steering control method, device, electronic device and storage medium.

[0006] In a first aspect, the present invention provides a steering control method, comprising:

[0007] Comparing the obtained driver's identity information with pre-stored information in the database;

[0008] When the identity information is consistent with the pre-stored information, determining a steering damping parameter of the steering wheel according to the identity information;

[0009] When the identity information is inconsistent with the pre-stored information, determining the steering damping parameter according to the driver's body characteristics and vehicle status information;

[0010] The damping force of the steering wheel is adjusted according to the steering damping parameter.

[0011] Optionally, comparing the acquired driver's identity information with pre-stored information in a database includes:

[0012] Scanning the driver's facial features through a camera to obtain the driver's facial data, wherein the driver's facial data is used to represent the driver's identity information;

[0013] The facial data is compared with facial data pre-stored in the database, wherein the pre-stored information includes facial data stored in the database after successful registration.

[0014] Optionally, determining the steering damping parameter according to the driver's body characteristics and vehicle state information includes:

[0015] Acquiring the driver's body features through a camera and a first sensor;

[0016] Acquiring the vehicle status information through a second sensor;

[0017] The steering damping parameter is determined according to the body characteristics and the whole vehicle state information.

[0018] Optionally, the body characteristics include gender, height, weight and grip strength of the driver, the first sensor includes a seat pressure sensor and a steering wheel force sensor, and the acquiring of the body characteristics of the driver through the camera and the first sensor includes:

[0019] Acquire a driver image through the camera, and determine the driver's gender and height based on the driver image;

[0020] obtaining the driver's weight through the seat pressure sensor;

[0021] Acquiring the driver's grip force through the steering wheel force sensor;

[0022] The vehicle status information includes vehicle speed information, steering wheel angle information, and steering wheel speed information, the second sensor includes a vehicle speed sensor, a steering wheel angle sensor, and a steering wheel speed sensor, and obtaining the vehicle status information through the second sensor includes:

[0023] acquiring the vehicle speed information through the vehicle speed sensor;

[0024] Acquiring the steering wheel angle information through the steering wheel angle sensor;

[0025] The steering wheel speed information is obtained through the steering wheel speed sensor.

[0026] Optionally, determining the steering damping parameter according to the body shape feature and the whole vehicle state information comprises:

[0027] determining a first damping component according to the body posture feature;

[0028] Determining a second damping component according to the vehicle state information;

[0029] The steering damping parameter is determined based on the first damping component and the second damping component.

[0030] Optionally, adjusting the damping force of the steering wheel according to the steering damping parameter comprises:

[0031] The state of the electronic power steering system or the hydraulic power steering system or the electronically controlled damping system is adjusted according to the steering damping parameter to adjust the damping force.

[0032] Optionally, before adjusting the damping force of the steering wheel according to the steering damping parameter, the steering control method further includes:

[0033] Pushing the steering damping parameter to the driver;

[0034] When the driver agrees to apply the steering damping parameter, adjusting the damping force of the steering wheel using the steering damping parameter;

[0035] When the driver disagrees to apply the steering damping parameter, the damping force of the steering wheel is adjusted using a default steering damping parameter or a user input parameter.

[0036] In a second aspect, the present invention provides a steering control device, comprising:

[0037] The first module is used to compare the obtained driver's identity information with the pre-stored information in the database;

[0038] A second module is used to determine a steering damping parameter of a steering wheel according to the identity information when the identity information is consistent with the pre-stored information;

[0039] A third module is used to determine the steering damping parameter according to the driver's body characteristics and vehicle status information when the identity information is inconsistent with the pre-stored information;

[0040] The fourth module is used to adjust the damping force of the steering wheel according to the steering damping parameter.

[0041] In a third aspect, the present invention provides an electronic device, including a memory and a processor;

[0042] The memory is used to store computer programs;

[0043] The processor is used to implement the steering control method as described in the first aspect when executing the computer program.

[0044] In a fourth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steering control method as described in the first aspect is implemented.

[0045] The beneficial effect of the steering control method of the present invention is: the obtained driver's identity information is compared with the pre-stored information in the database. When the identity information is consistent with the pre-stored information, the corresponding steering damping parameters are extracted from the database. When the identity information is inconsistent with the pre-stored information, the appropriate steering damping parameters are comprehensively calculated based on the driver's physical characteristics and the vehicle status information, and the damping force of the steering wheel is adjusted according to the steering damping parameters, so as to provide the driver with a matching steering feel. For example, for male drivers, a heavier steering feel is usually required, while for female drivers, a lighter steering feel is usually required, thereby ensuring the driver's control feel and satisfaction in controlling the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is a flow chart of a steering control method according to an embodiment of the present invention;

[0047] Figure 2 A schematic diagram of the information comparison process of an embodiment of the present invention;

[0048] Figure 3 A schematic diagram of a process for determining a steering damping parameter according to an embodiment of the present invention;

[0049] Figure 4 A schematic diagram of a process of obtaining body posture characteristics according to an embodiment of the present invention;

[0050] Figure 5 A schematic diagram of a process for obtaining vehicle status information according to an embodiment of the present invention;

[0051] Figure 6 A schematic diagram of a specific process of determining a steering damping parameter according to an embodiment of the present invention;

[0052] Figure 7 A schematic diagram of a process for adjusting damping force according to an embodiment of the present invention;

[0053] Figure 8 A system architecture diagram of a steering control device according to an embodiment of the present invention;

[0054] Fig. 9 4 is a system architecture diagram of an electronic device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0055] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be interpreted as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0056] It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this respect.

[0057] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to"; the term "based on" means "based at least in part on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0058] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0059] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only used for illustrative purposes, and are not used to limit the scope of these messages or information.

[0060] like Figure 1 As shown, an embodiment of the present invention provides a steering control method, comprising:

[0061] S100: Compare the acquired driver's identity information with pre-stored information in the database;

[0062] Specifically, the driver's identity information is identified through an in-car camera, and the identity information is compared with pre-stored information in a database.

[0063] S200: When the identity information is consistent with the pre-stored information, determining a steering damping parameter of a steering wheel according to the identity information.

[0064] Specifically, when the identity information is consistent with the pre-stored information, the corresponding steering damping parameters can be extracted from the database.

[0065] S300: When the identity information is inconsistent with the pre-stored information, the steering damping parameter is determined according to the driver's body characteristics and vehicle status information.

[0066] Specifically, when the identity information is inconsistent with the pre-stored information, the corresponding steering damping parameters cannot be extracted from the database according to the identity information. Therefore, the appropriate steering damping parameters are comprehensively calculated according to the driver's body characteristics and the vehicle status information.

[0067] S400: Adjusting the damping force of the steering wheel according to the steering damping parameter.

[0068] Specifically, by adjusting the damping force of the steering wheel according to the steering damping parameters, the steering feel of the vehicle is no longer fixed, thereby providing the driver with a matching steering feel. For example, male drivers usually require a heavier steering feel (i.e., more force is required to turn the steering wheel), while female drivers usually require a lighter steering feel (i.e., less force is required to turn the steering wheel), thereby ensuring the driver's control feel and fun in controlling the vehicle.

[0069] Among them, the steering damping parameters calculated this time can be bound to the driver's identity information. For example, the driver is asked on the central control screen whether to remember the steering damping parameters calculated this time. If the driver chooses to remember, the steering damping parameters will be bound to the identity information, so that when the identity information is consistent with the pre-stored information during the next comparison, the steering damping parameters of the steering wheel can be determined according to the identity information.

[0070] In this embodiment, the obtained driver's identity information is compared with the pre-stored information in the database. When the identity information is consistent with the pre-stored information, the corresponding steering damping parameters are extracted from the database. When the identity information is inconsistent with the pre-stored information, the appropriate steering damping parameters are comprehensively calculated based on the driver's physical characteristics and the vehicle status information, and the damping force of the steering wheel is adjusted according to the steering damping parameters, so as to provide the driver with a matching steering feel. For example, for male drivers, a heavier steering feel is usually required, while for female drivers, a lighter steering feel is usually required, thereby ensuring the driver's control feel and fun in controlling the vehicle.

[0071] Optionally, comparing the acquired driver's identity information with pre-stored information in a database includes:

[0072] S110: Scanning facial features of the driver through a camera to obtain facial data of the driver, wherein the facial data of the driver is used to represent the identity information of the driver.

[0073] Specifically, combined Figure 2 As shown, vehicle cabins are usually equipped with smart cameras or facial recognition systems, which can use technologies such as face recognition, eye recognition, and iris scanning to scan the driver's facial features to confirm his identity.

[0074] S120: Compare the facial data with facial data pre-stored in the database, wherein the pre-stored information includes the facial data stored in the database after successful registration.

[0075] Specifically, combined Figure 2 As shown, after obtaining the driver's facial data, the facial data is compared with the facial data pre-stored in the database (i.e., the facial data stored in the database after successful registration), for example, a similarity comparison is performed. The comparison process generates a matching score, which indicates the similarity between the current facial data and the facial data stored in the database. If the matching degree reaches a preset threshold (e.g., 90% or higher), the system considers the identity authentication successful; if the matching degree is lower than the threshold, the system may require the driver to provide additional identity authentication, or prompt the driver to slightly adjust the posture or move closer to the camera to re-perform facial recognition.

[0076] When a driver registers for the first time, the system will store the driver's facial data in a database. Facial data is usually stored in a local storage unit (such as a vehicle hard drive, embedded storage) or backed up and managed through a cloud service. Each driver's facial data is stored in association with his or her identity information.

[0077] In this optional embodiment, the driver's facial features are scanned by a camera, and the acquired facial data of the driver is compared with the facial data pre-stored in the database, thereby realizing the comparison of the driver's identity information with the pre-stored information in the database.

[0078] Optionally, determining the steering damping parameter according to the driver's body characteristics and vehicle state information includes:

[0079] S310: Acquire the body features of the driver through a camera and a first sensor.

[0080] Specifically, combined Figure 3 As shown, the vehicle cockpit is usually equipped with an intelligent camera, but the camera alone cannot fully obtain the driver's body characteristics. The first sensor can obtain the driver's body characteristics.

[0081] S320: Acquire the vehicle status information through a second sensor.

[0082] Specifically, combined Figure 3 As shown, the vehicle status information is provided by a second sensor, such as a vehicle speed sensor providing vehicle speed information.

[0083] S330: Determine the steering damping parameter according to the body characteristics and the vehicle state information.

[0084] Specifically, combined Figure 3 As shown, the steering damping parameters can be calculated based on the body characteristics and vehicle status information obtained previously.

[0085] In this optional embodiment, the body characteristics and vehicle status information are acquired by cooperating with a camera and a plurality of sensors, thereby improving the calculation accuracy of the steering damping parameters.

[0086] Optionally, the body characteristics include gender, height, weight and grip strength of the driver, the first sensor includes a seat pressure sensor and a steering wheel force sensor, and the acquiring of the body characteristics of the driver through the camera and the first sensor includes:

[0087] S311: Acquire a driver image through the camera, and determine the driver's gender and height based on the driver image.

[0088] Specifically, combined Figure 4 As shown, after the camera collects facial data, the system will first analyze the driver's face through image recognition and deep learning technology to extract relevant biometric features, thereby inferring the driver's gender; based on existing statistical and biological data, the system can use the key features of the driver's face (such as head height, eye position, etc.) to estimate his height. Some vehicles are equipped with depth cameras that can capture depth information of the scene, thereby inferring the driver's body height. For example, through the image captured by the depth camera, the system can generate a three-dimensional depth map, indicating the distance from the camera to the surface of each object. Based on the depth image and other auxiliary data (such as seat height, cushion position, etc.), the system can identify and extract the driver's body contour and determine his standing height or height information when sitting.

[0089] S312: Obtain the driver's weight through the seat pressure sensor.

[0090] Specifically, combined Figure 4As shown, the seat pressure sensor detects the pressure applied on the seat through a piezoelectric sensor or a strain sensor, senses the weight distribution of the human body, and can infer the driver's weight based on the pressure data recorded by the sensor. Multiple pressure sensors are usually arranged in multiple parts of the seat (such as the bottom of the seat, the cushion area, the backrest area, etc.). Through the joint work of multiple sensors, the system can more accurately measure the overall pressure distribution applied to the seat, and then infer the driver's weight. Taking a piezoelectric sensor as an example, the sensor can generate an electric charge when it is under pressure, and the size of the charge is proportional to the applied pressure. The sensor converts these charges into electrical signals, which are then associated with the body weight; taking a strain gauge sensor as an example, it works based on the strain effect. When pressure acts on the seat, the sensor will deform and measure the change in resistance, and the change in resistance is proportional to the applied pressure.

[0091] S313: Acquire the driver's grip force through the steering wheel force sensor.

[0092] Specifically, combined Figure 4 As shown, the steering wheel force sensor usually works based on a strain gauge sensor, a piezoelectric sensor or a capacitive sensor, and the driver's grip strength is calculated by detecting the force changes on the steering wheel in real time. Taking the strain gauge sensor as an example, the deformation caused by the applied force on the steering wheel can be detected, and then the magnitude of the force can be quantified through the change of resistance or electrical signal; taking the piezoelectric sensor as an example, the piezoelectric effect can be used to convert the applied pressure into an electrical signal, and the grip force and other tiny force changes can be detected very sensitively; taking the capacitive sensor as an example, the capacitive sensor works based on the change of capacitance, and can detect the force applied by the driver when holding the steering wheel, and the magnitude of the capacitance change is proportional to the grip force.

[0093] Among them, the steering wheel force sensors are arranged in the two main gripping areas of the steering wheel, i.e., where the driver's hands are placed. These positions need to be able to fully capture all forces exerted by the driver's hands, including grip, thrust, torque, etc.

[0094] In this optional embodiment, body posture characteristics are acquired through the cooperation of a camera, a seat pressure sensor and a steering wheel force sensor, thereby improving the calculation accuracy of the steering damping parameters.

[0095] Optionally, the vehicle status information includes vehicle speed information, steering wheel angle information, and steering wheel speed information, the second sensor includes a vehicle speed sensor, a steering wheel angle sensor, and a steering wheel speed sensor, and acquiring the vehicle status information through the second sensor includes:

[0096] S321: Acquire the vehicle speed information through the vehicle speed sensor.

[0097] Specifically, combined Figure 5As shown in the figure, the vehicle speed sensor calculates the vehicle speed by measuring the rotation speed of the wheel or other rotating parts. Taking the magnetic vehicle speed sensor (Hall effect sensor) as an example, when the magnet or gear on the wheel approaches the Hall effect sensor, the magnetic field changes, and the sensor generates a pulse signal proportional to the wheel speed; taking the wheel speed sensor (magnetic induction sensor) as an example, the relative movement between the magnet on the wheel and the sensor is used to generate an electrical signal through the principle of magnetic induction. The rotation of the wheel changes the strength of the magnetic field, and the sensor generates a voltage or current change according to the change in the magnetic field, which is converted into a digital signal.

[0098] S322: Acquire the steering wheel angle information through the steering wheel angle sensor.

[0099] Specifically, combined Figure 5 As shown, the steering wheel angle sensor is usually used to measure the rotation angle of the steering wheel (i.e., the steering angle). Taking a potentiometer sensor as an example, when the steering wheel turns, the rotation of the potentiometer will cause the resistance value to change, and this change is proportional to the steering wheel angle. The output of the potentiometer is a voltage signal corresponding to the steering wheel angle. Taking a Hall effect sensor as an example, when the magnet or gear on the steering wheel moves relative to the Hall effect sensor, the sensor detects the change in the magnetic field and generates a signal proportional to the steering wheel angle.

[0100] S323: Acquire the steering wheel speed information through the steering wheel speed sensor.

[0101] Specifically, combined Figure 5 As shown, the function of the steering wheel speed sensor is to detect the rotation speed (rotation speed) of the steering wheel. Taking the Hall effect sensor as an example, the rotation speed is measured by detecting the change in the magnetic field generated by the magnet or gear on the steering wheel when it rotates. When the steering wheel rotates, the magnetic field changes, and the Hall effect sensor outputs a signal according to the frequency of the magnetic field change. Taking the electromagnetic sensor as an example, the rotation speed is detected by measuring the electromagnetic changes generated by the rotating parts. When the steering wheel rotates, the electromagnetic field changes generated can be sensed by the sensor, and the sensor calculates the rotation speed by detecting the changes in these electromagnetic waves.

[0102] In this optional embodiment, the vehicle speed information, steering wheel angle information and steering wheel speed information are respectively obtained through various sensors, so that the steering damping parameters can be accurately calculated.

[0103] Optionally, determining the steering damping parameter according to the body shape feature and the whole vehicle state information comprises:

[0104] S331: Determine a first damping component according to the body posture characteristics.

[0105] Specifically, combined Figure 6As shown in , the influence of body characteristics (such as the driver's gender, height, weight and grip strength) on steering damping varies. Height, weight and grip strength have a greater influence on steering damping, while gender may have a smaller influence, which can be quantified by the corresponding formula to determine the first damping component. For example, in terms of gender, the damping component corresponding to male drivers is larger, and the damping component corresponding to female drivers is smaller; in terms of height and weight, tall or heavy drivers may prefer a heavier steering feel, and the corresponding damping component is larger, while shorter or lighter drivers may prefer a lighter steering feel, and the corresponding damping component is smaller; in terms of grip strength, a strong grip means that the driver can hold the steering wheel with greater force and apply greater force to turn the steering wheel, and the corresponding damping component is larger, while a weak grip means that the driver can hold the steering wheel with less force, and the corresponding damping component is smaller.

[0106] S332: Determine a second damping component according to the vehicle state information.

[0107] Specifically, combined Figure 6 As shown, vehicle status information (such as vehicle speed information, steering wheel angle information and steering wheel speed information) is an important factor in determining steering damping. Taking vehicle speed and steering wheel angle as an example, the higher the vehicle speed, the greater the vehicle's damping requirement. When the steering angle is larger, the system needs to provide more feedback and damping to enhance controllability. This can be quantified through the corresponding formula to determine the second damping component. For example, with respect to vehicle speed, a lighter steering feel is required at low speeds, and a lower steering damping force is usually provided, and the corresponding damping component is smaller. A heavier steering feel is required at high speeds, and a higher steering damping force is usually provided to enhance the stability and accuracy of the vehicle and prevent the driver from over-manipulating the vehicle, and the corresponding damping component is larger. With respect to steering wheel angles, more feedback and damping are usually required at large angles to prevent over-steering, and the corresponding damping component is larger. At small angles, the driver has lower requirements for steering feedback, and therefore requires less damping force, and the corresponding damping component is smaller. With respect to steering wheel speed, when the steering wheel turns faster (i.e., the steering speed is higher), the steering damping usually increases accordingly, and the corresponding damping component is larger. When the steering wheel turns slower (such as parking at low speed or turning slowly), the steering damping usually decreases, and the corresponding damping component is smaller.

[0108] S333: Determine the steering damping parameter according to the first damping component and the second damping component.

[0109] Specifically, combined Figure 6 As shown, after determining the first damping component and the second damping component, the steering damping parameter can be determined, and the steering damping parameter is brought into the hand force calculation formula to obtain the final hand force fed back on the steering wheel.

[0110] In this optional embodiment, after determining the first damping component according to the body characteristics and the second damping component according to the vehicle status information, the steering damping parameter can be determined, and the steering damping parameter can be brought into the hand force calculation formula to obtain the final hand force fed back on the steering wheel.

[0111] Optionally, adjusting the damping force of the steering wheel according to the steering damping parameter comprises:

[0112] The state of the electronic power steering system or the hydraulic power steering system or the electronically controlled damping system is adjusted according to the steering damping parameter to adjust the damping force.

[0113] Specifically, when adjusting the damping force, the state of the electronic power steering system (such as a wire-controlled steering system) can be adjusted, for example, by adjusting the power of the electric motor to change the steering power output, the state of the hydraulic power steering system can be adjusted, for example, by changing the output pressure of the hydraulic pump to adjust the steering wheel resistance, and the state of the electronically controlled damping system can be adjusted, for example, by adjusting the working state of the electronically controlled damping element in the steering system, thereby changing the steering feedback feeling.

[0114] An exemplary hand force calculation formula is as follows:

[0115] (1) For a stationary vehicle, the hand force can be expressed as:

[0116]

[0117] Among them, Mr represents the in-situ steering resistance torque, ∑M 特征阻尼 represents the sum of the torque corresponding to gender, height, weight and grip strength, η represents the transmission efficiency of the steering system, D i represents the steering wheel diameter, and w represents the steering gear angle transmission ratio.

[0118] (2) For a moving vehicle, the hand force can be expressed as:

[0119]

[0120] Wherein, ∑M represents the sum of rolling resistance torque, sliding resistance torque and self-aligning torque.

[0121] It can be seen that the first damping component involved above can be obtained by the moment ΣM corresponding to the characteristic damping in the exemplary hand force formula: 特征阻尼The second damping component involved above can be expressed by multiplying the in-situ steering resistance torque Mr in the exemplary hand force formula by the corresponding coefficient, or by multiplying the sum of the rolling resistance torque, the sliding resistance torque and the self-aligning torque ∑M by the corresponding coefficient (the vehicle state information is related to the rolling resistance torque, the sliding resistance torque and the self-aligning torque). The corresponding steering damping parameter can be determined by the sum of the first damping component and the second damping component. For example, the steering damping parameter can be expressed as 0.8*Mr+0.2*∑M 特征阻尼 or 0.8*∑M+0.2*∑M 特征阻尼 , the corresponding weighting coefficient can be adaptively adjusted according to the actual situation.

[0122] Among them, for the electronically controlled damping system, the electromagnetic damping principle is usually adopted, that is, when the conductor moves in the magnetic field, the induced current will cause the conductor to receive the Ampere force. The direction of the Ampere force is opposite to the direction of movement of the conductor, generating a damping force. Therefore, a metal conductor can be added to the steering shaft, and electromagnets are placed on the front and rear sides of the conductor respectively. After power is turned on, positive and negative poles are formed. When turning, the metal conductor cuts the magnetic field to generate reverse Ampere force, providing steering damping, and providing variable steering damping force by changing the current size.

[0123] In this optional embodiment, the damping force is adjusted by adjusting the state of the electronic power steering system and / or the hydraulic power steering system and / or the electronically controlled damping system, thereby providing the driver with a suitable steering feel.

[0124] Optionally, before adjusting the damping force of the steering wheel according to the steering damping parameter, the steering control method further includes:

[0125] S340: Pushing the steering damping parameter to the driver.

[0126] Specifically, combined Figure 7 As shown, after the steering damping parameter is calculated, the steering damping parameter is displayed on the central control screen so that the driver can know it.

[0127] S350: When the driver agrees to apply the steering damping parameter, the damping force of the steering wheel is adjusted using the steering damping parameter.

[0128] Specifically, combined Figure 7 As shown, when the driver agrees to apply the steering damping parameter, the steering damping parameter is used to adjust the damping force of the steering wheel.

[0129] S360: When the driver disagrees to apply the steering damping parameter, the damping force of the steering wheel is adjusted using a default steering damping parameter or a user input parameter.

[0130] Specifically, combined Figure 7As shown, when the driver disagrees to apply the steering damping parameter, the default steering damping parameter can be used, or the user can input the corresponding steering damping parameter to adjust the damping force of the steering wheel.

[0131] In this optional embodiment, the driver's authority to adjust the damping force is increased to provide the driver with a suitable steering feel.

[0132] like Figure 8 As shown, a steering control device 800 provided by an embodiment of the present invention includes:

[0133] The first module 810 is used to compare the obtained driver's identity information with the pre-stored information in the database;

[0134] The second module 820 is used to determine the steering damping parameter of the steering wheel according to the identity information when the identity information is consistent with the pre-stored information;

[0135] The third module 830 is used to determine the steering damping parameter according to the driver's body characteristics and vehicle state information when the identity information is inconsistent with the pre-stored information;

[0136] The fourth module 840 is used to adjust the damping force of the steering wheel according to the steering damping parameter.

[0137] like Fig. 9 As shown, an electronic device 900 provided by an embodiment of the present invention includes a memory 920 and a processor 910; the memory 920 is used to store a computer program; the processor 910 is used to implement the steering control method as described above when executing the computer program.

[0138] In other words, an electronic device 900 includes a memory 920 and a processor 910 coupled to the memory 920; the memory 920 is configured to store a computer program; and the processor 910 is configured to perform the following operations when executing the computer program:

[0139] Comparing the obtained driver's identity information with pre-stored information in the database;

[0140] When the identity information is consistent with the pre-stored information, determining a steering damping parameter of the steering wheel according to the identity information;

[0141] When the identity information is inconsistent with the pre-stored information, determining the steering damping parameter according to the driver's body characteristics and vehicle status information;

[0142] The damping force of the steering wheel is adjusted according to the steering damping parameter.

[0143] An embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steering control method as described above is implemented.

[0144] In other words, a non-volatile computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the processor performs the following operations:

[0145] Comparing the obtained driver's identity information with pre-stored information in the database;

[0146] When the identity information is consistent with the pre-stored information, determining a steering damping parameter of the steering wheel according to the identity information;

[0147] When the identity information is inconsistent with the pre-stored information, determining the steering damping parameter according to the driver's body characteristics and vehicle status information;

[0148] The damping force of the steering wheel is adjusted according to the steering damping parameter.

[0149] An electronic device 900 that can be used as a server or client of the present invention will now be described, which is an example of a hardware device that can be applied to various aspects of the present invention. Electronic device 900 is intended to represent various forms of digital electronic computer equipment, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. Electronic device 900 can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples, and are not intended to limit the implementation of the present invention described herein and / or required.

[0150] Electronic device 900 includes a computing unit, which can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) or a computer program loaded from a storage unit into a random access memory (RAM). In RAM, various programs and data required for device operation can also be stored. The computing unit, ROM, and RAM are connected to each other via a bus. An input / output (I / O) interface is also connected to the bus.

[0151] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, the storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc. In the present application, the unit described as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, it may be located in one place, or it may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment of the present invention. In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0152] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A steering control method, characterized in that: include: Comparing the obtained driver's identity information with pre-stored information in the database; When the identity information is consistent with the pre-stored information, determining a steering damping parameter of the steering wheel according to the identity information; When the identity information is inconsistent with the pre-stored information, determining the steering damping parameter according to the driver's body characteristics and vehicle status information; The damping force of the steering wheel is adjusted according to the steering damping parameter.

2. The steering control method according to claim 1, characterized in that: The step of comparing the acquired driver's identity information with pre-stored information in the database includes: Scanning the driver's facial features through a camera to obtain the driver's facial data, wherein the driver's facial data is used to represent the driver's identity information; The facial data is compared with facial data pre-stored in the database, wherein the pre-stored information includes facial data stored in the database after successful registration.

3. The steering control method according to claim 1, characterized in that: Determining the steering damping parameter according to the driver's body characteristics and vehicle status information includes: Acquiring the driver's body features through a camera and a first sensor; Acquiring the vehicle status information through a second sensor; The steering damping parameter is determined according to the body characteristics and the whole vehicle state information.

4. The steering control method according to claim 3, characterized in that: The body characteristics include the driver's gender, height, weight and grip strength, the first sensor includes a seat pressure sensor and a steering wheel force sensor, and the body characteristics of the driver obtained by using the camera and the first sensor include: Acquire a driver image through the camera, and determine the driver's gender and height based on the driver image; obtaining the driver's weight through the seat pressure sensor; Acquiring the driver's grip force through the steering wheel force sensor; The vehicle status information includes vehicle speed information, steering wheel angle information, and steering wheel speed information, the second sensor includes a vehicle speed sensor, a steering wheel angle sensor, and a steering wheel speed sensor, and obtaining the vehicle status information through the second sensor includes: acquiring the vehicle speed information through the vehicle speed sensor; Acquiring the steering wheel angle information through the steering wheel angle sensor; The steering wheel speed information is obtained through the steering wheel speed sensor.

5. The steering control method according to claim 4, characterized in that: Determining the steering damping parameter according to the body shape characteristics and the vehicle state information comprises: determining a first damping component according to the body posture feature; Determining a second damping component according to the vehicle state information; The steering damping parameter is determined based on the first damping component and the second damping component.

6. The steering control method according to claim 1, characterized in that: The step of adjusting the damping force of the steering wheel according to the steering damping parameter comprises: The state of the electronic power steering system or the hydraulic power steering system or the electronically controlled damping system is adjusted according to the steering damping parameter to adjust the damping force.

7. The steering control method according to any one of claims 1 to 6, characterized in that: Before adjusting the damping force of the steering wheel according to the steering damping parameter, the method further includes: Pushing the steering damping parameter to the driver; When the driver agrees to apply the steering damping parameter, the damping force of the steering wheel is adjusted using the steering damping parameter; When the driver disagrees to apply the steering damping parameter, the damping force of the steering wheel is adjusted using a default steering damping parameter or a user input parameter.

8. A steering control device, characterized in that: include: The first module is used to compare the obtained driver's identity information with the pre-stored information in the database; A second module is used to determine a steering damping parameter of a steering wheel according to the identity information when the identity information is consistent with the pre-stored information; A third module is used to determine the steering damping parameter according to the driver's body characteristics and vehicle status information when the identity information is inconsistent with the pre-stored information; The fourth module is used to adjust the damping force of the steering wheel according to the steering damping parameter.

9. An electronic device, characterized in that: including memory and processor; The memory is used to store computer programs; The processor is used to implement the steering control method according to any one of claims 1 to 7 when executing the computer program.

10. A computer-readable storage medium, characterized in that: The storage medium stores a computer program, and when the computer program is executed by a processor, the steering control method according to any one of claims 1 to 7 is implemented.

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