Method and system for steering indication of a vehicle, vehicle and computer program product

Abstract

The present application relates to a method for steering indication of a vehicle, the method comprising: detecting a wheel deflection angle X of a front wheel of the vehicle with respect to a desired direction of travel of the vehicle in the event that a drift state of the vehicle (1) is detected; ascertaining a desired steering angle Y of the steering device (2) corresponding to the wheel deflection angle X; a reference position of the steering device is indicated by means of a first display unit (13) and the steering desired angle Y is indicated by means of a second display unit (14) in order to instruct a driver to actuate the steering device (2) such that the positions of the first display unit (13) and the second display unit (14) overlap, the first display unit and the second display unit are arranged on the same circular ring (21) of the steering device. According to the method and the device, a driver can be instructed to operate the steering device in a simple and efficient manner to quickly get rid of the drifting state of the vehicle, so that the driving experience and the driving safety of the vehicle are improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle steering devices, and in particular to a method for vehicle steering control indication, a system for vehicle steering control indication, a vehicle including the system according to the present application, and a computer program product for at least assisting in implementing the steps of the method described in the present application. Background Art

[0002] When the driver is driving the vehicle, drift often occurs due to improper steering wheel operation, that is, there is a certain angle deviation between the actual direction of movement of the vehicle and the direction of the vehicle body. This drift phenomenon not only affects the normal driving of the vehicle itself, but also poses a huge safety hazard to other vehicles in the driving environment.

[0003] Therefore, how to instruct the driver to steer the vehicle out of the drift state as quickly as possible has become a technical problem that needs to be solved at present. Summary of the invention

[0004] The object of the present application is to provide a method for steering maneuver indication of a vehicle, a system for steering maneuver indication of a vehicle, a vehicle including the system according to the present application, and a computer program product, so as to at least partially solve the problems in the prior art.

[0005] According to a first aspect of the present application, a method for steering maneuver indication of a vehicle is provided, and the method may include:

[0006] - in the case of detecting a drifting state of the vehicle, the wheel deflection angle X of the front wheels of the vehicle relative to the desired driving direction of the vehicle can be detected;

[0007] - the desired steering angle Y of the steering device corresponding to the wheel deflection angle X can be obtained; and

[0008] -Indicating a reference position of a steering device through a first display unit and indicating a desired steering operation angle Y through a second display unit, so as to instruct a driver to operate the steering device, so that the positions of the first display unit and the second display unit overlap, wherein the first display unit and the second display unit are arranged on the same circular ring of the steering device.

[0009] The core concept of the present application includes at least: when the drift state of the vehicle is detected, the driver is instructed on the operation steps of the steering device by two display units on the same circle of the steering device, and the front wheels of the vehicle can be adjusted to a direction parallel to the desired driving direction of the vehicle by manipulating the steering device so that the positions of the two display units overlap, thereby instructing the driver to manipulate the steering device in a simple and efficient manner to quickly get rid of the drift state of the vehicle, thereby improving the driving experience and driving safety of the vehicle.

[0010] According to an optional embodiment of the present application, the angular velocity of the vehicle's rotation in various directions can be measured by a gyroscope, and when the angular velocity is greater than a preset angular velocity threshold and the duration exceeds a preset time threshold, the drift state of the vehicle is detected, wherein the angular velocity includes, for example, a yaw angular velocity, a pitch angular velocity and / or a roll angular velocity.

[0011] According to another optional embodiment of the present application, the driving trajectory of the vehicle during driving can be detected and recorded by a positioning device. When the angle between the vehicle body orientation and the recorded driving trajectory is greater than a preset angle threshold, the drift state of the vehicle can be detected, wherein the desired driving direction of the vehicle is determined based on the recorded driving trajectory.

[0012] According to another optional embodiment of the present application, the reference position of the steering device can be indicated by the first display unit in a first color and / or a first shape, and the desired steering angle Y can be indicated by the second display unit in a second color and / or a second shape.

[0013] According to another optional embodiment of the present application, the desired rotation direction of the steering device determined based on the positions of the first display unit and the second display unit may be indicated by a third display unit.

[0014] According to another optional embodiment of the present application, when the positions of the first display unit and the second display unit overlap, notification information about the position overlap can be sent by the first display unit and / or the second display unit, for example, in a flashing manner.

[0015] According to another optional embodiment of the present application, the direction of the desired steering angle Y of the steering device relative to the reference position of the steering device can be determined based on the gear information of the vehicle, wherein, when the vehicle is in a non-reverse gear, the direction of the desired steering angle Y of the steering device relative to the reference position of the steering device is opposite to the offset direction of the wheel deflection angle X relative to the desired driving direction of the vehicle; when the vehicle is in a reverse gear, the direction of the desired steering angle Y of the steering device relative to the reference position of the steering device is the same as the offset direction of the wheel deflection angle X relative to the desired driving direction of the vehicle.

[0016] According to a second aspect of the present application, a system for steering control indication of a vehicle is provided, and the system may include the following components:

[0017] - a posture detection unit, which is configured to detect a drift state of the vehicle;

[0018] - a deflection angle detection unit, which is configured to detect a wheel deflection angle X of the front wheels of the vehicle relative to a desired driving direction of the vehicle;

[0019] - a first display unit and a second display unit arranged on the same circular ring of the steering device, the first display unit being used to indicate a reference position of the steering device, and the second display unit being used to indicate a desired steering angle Y of the steering device; and

[0020] - A control unit for carrying out the method according to the application.

[0021] According to another optional embodiment of the present application, the system may further include a third display unit, which is used to indicate a desired rotation direction of the steering device determined based on positions of the first display unit and the second display unit.

[0022] According to a third aspect of the present application, a vehicle is provided, comprising a system according to the present application.

[0023] According to a fourth aspect of the present application, a computer program product, such as a computer-readable program carrier, is provided, which contains or stores computer program instructions, and when the computer program instructions are executed by a processor, they at least assist in implementing the steps of the method described in the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The principles, features and advantages of the present application may be better understood by describing the present application in more detail below with reference to the accompanying drawings. The accompanying drawings show:

[0025] Figure 1 A flowchart showing a method for steering maneuver indication of a vehicle according to an exemplary embodiment of the present application is shown;

[0026] Figure 2 A schematic diagram of a driving scenario according to an exemplary embodiment of the present application is shown;

[0027] Figure 3 A schematic structural diagram showing a steering device according to an exemplary embodiment of the present application; and

[0028] Figure 4 A schematic block diagram of a system for steering maneuver indication of a vehicle according to an exemplary embodiment of the present application is shown. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial technical effects to be solved by the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and multiple exemplary embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the scope of protection of the present application.

[0030] Figure 1 A flowchart of a method for steering maneuver indication of a vehicle according to an exemplary embodiment of the present application is shown. The following exemplary embodiments describe the method according to the present application in more detail.

[0031] like Figure 1 As shown, the method may include steps S1 to S3. In step S1, when the drift state of vehicle 1 is detected, the wheel deflection angle X of the front wheel of vehicle 1 relative to the desired driving direction of vehicle 1 may be detected. In the current embodiment of the present application, vehicle 1 refers to a rear-wheel drive vehicle, or a four-wheel drive vehicle, or a front-wheel drive vehicle, especially a rear-wheel drive vehicle that is prone to drift of the rear end of the vehicle body during driving. In the meaning of the present application, "drift state" means that the body of the vehicle is facing a certain deviation angle relative to the driving direction of the vehicle.

[0032] During the driving process of the vehicle 1, the angular velocity of the vehicle 1 rotating in various directions can be measured by a gyroscope, especially a three-axis gyroscope. The angular velocity includes, for example, yaw angular velocity, pitch angular velocity and / or roll angular velocity, etc. These angular velocities reflect the rotational motion state of the vehicle 1 around each axis. During the drifting process of the vehicle 1, the vehicle 1 may produce rotational motion around the vertical axis, and may also produce roll motion and pitch motion. When one or more of the yaw angular velocity, pitch angular velocity and roll angular velocity is greater than a preset angular velocity threshold, it can be preliminarily determined that the vehicle 1 is in a drifting state. At the same time, taking into account that interference factors such as the vehicle passing an obstacle may cause temporary interference to the angular velocity of the vehicle 1, a time threshold can also be set. When the angular velocity is greater than the preset angular velocity threshold and the duration exceeds the preset time threshold, it can be determined that the drifting state of the vehicle 1 is detected. In addition, the driving trajectory of the vehicle 1 during driving can also be detected and recorded by a positioning device, such as Figure 2 The schematic diagram of a driving scene according to an exemplary embodiment of the present application is shown, the driving trajectory of the vehicle 1 is the direction indicated by the arrow E, and there is a certain angle between the vehicle body direction and the driving trajectory, wherein the narrower part of the vehicle body schematically represents the front of the vehicle, and the wider part of the vehicle body schematically represents the rear of the vehicle. Figure 2As shown in the left figure of , when the angle between the body orientation of the vehicle 1 and the recorded driving trajectory is greater than the preset angle threshold, the drift state of the vehicle 1 can be clearly determined.

[0033] When the drift state of the vehicle 1 is detected, the wheel deflection angle X of the front wheels of the vehicle 1 relative to the desired driving direction of the vehicle 1 can be detected by the deflection angle detection unit 12 of the vehicle 1. Here, the desired driving direction of the vehicle 1 can be determined based on the driving trajectory of the vehicle 1 recorded during the driving process. Figure 2 The direction indicated by the arrow E in FIG. 1 means that the front wheels of the vehicle 1 are moved in the direction indicated by the arrow E. Figure 2 By adjusting the direction indicated by the dotted arrow in the middle figure to a position parallel to the desired driving direction of the vehicle 1, the deviation angle between the vehicle body orientation and the vehicle driving direction can be eliminated, thereby allowing the vehicle 1 to escape from the drift state.

[0034] In step S2, the desired steering angle Y of the steering device 2 corresponding to the wheel deflection angle X can be obtained. According to the basic principle of the vehicle's steering device, the steering wheel is connected to the front wheels through a connecting rod and a universal shaft. When the driver manipulates the steering wheel to rotate a certain angle, the front wheels will rotate a corresponding angle, wherein there is a fixed mathematical relationship between the angle of rotation of the steering wheel and the angle of rotation of the front wheels, and the mathematical relationship depends on the structural size parameters of the steering device of the vehicle 1. The mathematical relationship can be pre-stored in the control unit 15 of the system 10 for steering manipulation indication of the vehicle, thereby obtaining the desired steering angle Y of the steering device 2 based on the wheel deflection angle X. When the driver manipulates the steering device 2 to rotate the desired steering angle Y, the front wheels of the vehicle 1 can be Figure 2 As shown in the middle figure of , it is rotated to a direction parallel to the desired driving direction of the vehicle 1.

[0035] In step S3, the reference position of the steering device 2 can be indicated by the first display unit 13, and the desired steering angle Y can be indicated by the second display unit 14, so as to instruct the driver to manipulate the steering device 2, so that the positions of the first display unit 13 and the second display unit 14 overlap, wherein the first display unit 13 and the second display unit 14 are arranged on the same circle of the steering device 2. Figure 3The schematic diagram of the structure of the steering device 2 according to an exemplary embodiment of the present application is shown, in which the surface of the steering device 2, i.e., the surface of the steering wheel, is constructed as a ring 21 composed of a circular LED light strip, for example, and the first display unit 13 and the second display unit 14 are arranged on the ring 21. The reference position of the steering device 2 is indicated by the first display unit 13, and the reference position is always in a fixed position, which represents the angle of the steering device 2 when the vehicle 1 is driving straight. The position of the second display unit 14 is dynamic, and it can be adjusted according to the desired steering angle Y, so that the angle Y between the line connecting the first display unit 13 to the center of the ring and the line connecting the second display unit 14 to the center of the ring is always equal to the desired steering angle Y. In order to make it easier for the driver to distinguish between the first display unit 13 and the second display unit 14, the first display unit 13 and the second display unit 14 can be displayed in different colors and / or different shapes (such as circles, squares and / or triangles, etc.), that is, the reference position of the steering device 2 is indicated by the first display unit 13 in a first color and / or a first shape, and the desired steering operation angle Y is indicated by the second display unit 14 in a second color and / or a second shape.

[0036] In the case where the positions of the first display unit 13 and the second display unit 14 overlap, this means that the front wheels of the vehicle 1 are manipulated to a direction parallel to the desired driving direction of the vehicle 1, that is, the deviation angle between the vehicle body orientation and the vehicle driving direction has been eliminated. Therefore, a notification information about the position overlap can be sent via the first display unit 13 and / or the second display unit 14, for example in a flashing manner, and the driver knows that the vehicle 1 has escaped from the drift state after obtaining the notification information.

[0037] In addition, in order to enable the driver, especially the novice driver, to more clearly understand the steering direction of the steering device 2, the third display unit 16 may also be used to indicate the desired rotation direction of the steering device 2 determined based on the positions of the first display unit 13 and the second display unit 14. The desired rotation direction is the direction in which the position of the second display unit 14 points to the position of the first display unit 13. The third display unit 16 may be as shown in FIG. Figure 3 The LED light strip arranged on the circular ring 21 of the steering device 2 and configured as a symbol with direction indication properties (such as an arrow) as shown can also be arranged outside the steering device 2, for example, configured as an indicator light near the steering wheel.

[0038] In addition, considering that the vehicle may drift during both forward and backward driving, the direction of the desired steering angle Y of the steering device 2 relative to the reference position of the steering device 2 can be determined based on the gear information of the vehicle 1, wherein, when the vehicle 1 is in a non-reverse gear (i.e., driving forward), the direction of the desired steering angle Y of the steering device 2 relative to the reference position of the steering device 2 - this direction can determine whether the second display unit 14 is on the left or right side of the first display unit 13 - is opposite to the offset direction of the wheel deflection angle X relative to the desired driving direction of the vehicle 1; when the vehicle 1 is in a reverse gear (i.e., driving backward), the direction of the desired steering angle Y of the steering device 2 relative to the reference position of the steering device 2 is the same as the offset direction of the wheel deflection angle X relative to the desired driving direction of the vehicle 1.

[0039] According to an embodiment of the present application, when the drift state of the vehicle is detected, the two display units on the same circle of the steering device are used to instruct the driver on the operation steps of the steering device, and by manipulating the steering device so that the positions of the two display units overlap, the front wheels of the vehicle can be adjusted to a direction parallel to the desired driving direction of the vehicle, thereby instructing the driver to manipulate the steering device in a simple and efficient manner to quickly get rid of the drift state of the vehicle, thereby improving the driving experience and driving safety of the vehicle.

[0040] In addition, it should be noted that the step numbers described herein do not necessarily represent a chronological order, but are merely a figure mark. The order can be changed according to specific circumstances as long as the technical purpose of the present application can be achieved.

[0041] Figure 4 A schematic block diagram of a system for steering maneuver indication of a vehicle according to an exemplary embodiment of the present application is shown.

[0042] like Figure 4 As shown, the system 10 may include the following components:

[0043] - a posture detection unit 11, which is configured to detect the drift state of the vehicle 1, wherein the posture detection unit includes, for example, a gyroscope and / or a positioning device;

[0044] A deflection angle detection unit 12, which is configured to detect a wheel deflection angle X of the front wheels of the vehicle 1 relative to the desired driving direction of the vehicle 1;

[0045] - a first display unit 13 and a second display unit 14 arranged on the same circular ring 21 of the steering device 2, the first display unit 13 being used to indicate a reference position of the steering device 2, and the second display unit 14 being used to indicate a desired steering angle Y of the steering device 2; and

[0046] - A control unit 15 for executing the method according to the present application.

[0047] The system 10 may further include a third display unit 16 for indicating a desired rotation direction of the steering device 2 determined based on the positions of the first display unit 13 and the second display unit 14. Here, the third display unit 16 may be as follows: Figure 3 The LED light strip arranged on the circular ring 21 of the steering device 2 as shown may also be arranged outside the steering device 2 , for example, in the form of an indicator light near the steering wheel.

[0048] It should be understood that, in this document, the expressions "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance, nor should they be understood as implicitly indicating the number of the indicated technical features.

[0049] If an embodiment includes an “and / or” relationship between a first feature and a second feature, it should be interpreted as follows: according to one embodiment, the embodiment has both the first feature and the second feature, and according to another embodiment, the embodiment has either only the first feature or only the second feature.

[0050] Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the present disclosure, even when only a single embodiment is described with respect to specific features. The feature examples provided in the present disclosure are intended to be illustrative, not restrictive, unless otherwise stated. In specific implementations, multiple features may be combined with each other, where technically feasible, according to actual needs. Various substitutions, changes, and modifications may also be conceived without departing from the spirit and scope of the present application.

Claims

1. A method for steering control indication of a vehicle, the method comprising: When a drift state of the vehicle (1) is detected, detecting a wheel deflection angle X of the front wheels of the vehicle (1) relative to a desired driving direction of the vehicle (1); Obtaining an expected steering angle Y of a steering device (2) corresponding to the wheel deflection angle X; as well as The reference position of a steering device (2) is indicated by a first display unit (13), and the desired steering angle Y is indicated by a second display unit (14), so as to instruct a driver to operate the steering device (2), so that the positions of the first display unit (13) and the second display unit (14) overlap, wherein the first display unit (13) and the second display unit (14) are arranged on the same circular ring (21) of the steering device (2).

2. The method according to claim 1, wherein: Measuring the angular velocity of the vehicle (1) rotating in various directions by means of a gyroscope, and detecting the drift state of the vehicle (1) when the angular velocity is greater than a preset angular velocity threshold and the duration exceeds a preset time threshold, wherein the angular velocity includes, for example, a yaw angular velocity, a pitch angular velocity and / or a roll angular velocity; and / or The driving trajectory of the vehicle (1) during driving is detected and recorded by a positioning device, and when the angle between the body direction of the vehicle (1) and the recorded driving trajectory is greater than a preset angle threshold, the drift state of the vehicle (1) is detected, wherein the expected driving direction of the vehicle (1) is determined based on the recorded driving trajectory.

3. A method according to any one of the preceding claims, wherein: The reference position of the steering device (2) is indicated by the first display unit (13) in a first color and / or a first shape, and the desired steering angle Y is indicated by the second display unit (14) in a second color and / or a second shape.

4. A method according to any one of the preceding claims, wherein: A desired rotation direction of the steering device (2) determined based on the positions of the first display unit (13) and the second display unit (14) is indicated by a third display unit (16).

5. A method according to any one of the preceding claims, wherein: When the positions of the first display unit (13) and the second display unit (14) overlap, notification information about the position overlap is sent through the first display unit (13) and / or the second display unit (14), for example, in a flashing manner.

6. A method according to any one of the preceding claims, wherein: The direction of the desired steering angle Y of the steering device (2) relative to the reference position of the steering device (2) is determined based on the gear information of the vehicle (1), wherein, when the vehicle (1) is in a non-reverse gear position, the direction of the desired steering angle Y of the steering device (2) relative to the reference position of the steering device (2) is opposite to the offset direction of the wheel deflection angle X relative to the desired driving direction of the vehicle (1); when the vehicle (1) is in a reverse gear position, the direction of the desired steering angle Y of the steering device (2) relative to the reference position of the steering device (2) is the same as the offset direction of the wheel deflection angle X relative to the desired driving direction of the vehicle (1).

7. A system (10) for steering maneuver indication of a vehicle, the system (10) comprising the following components: A posture detection unit (11) configured to detect a drift state of the vehicle (1); A deflection angle detection unit (12) configured to detect a wheel deflection angle X of a front wheel of the vehicle (1) relative to a desired driving direction of the vehicle (1); a first display unit (13) and a second display unit (14) arranged on the same circular ring (21) of the steering device (2), the first display unit (13) being used to indicate a reference position of the steering device (2), and the second display unit (14) being used to indicate a desired steering angle Y of the steering device (2); and A control unit (15) for executing the method according to any one of claims 1 to 6.

8. The system (10) according to claim 7, wherein: The system (10) further comprises a third display unit (16) for indicating a desired rotation direction of the steering device (2) determined based on the positions of the first display unit (13) and the second display unit (14).

9. A vehicle (1) comprising a system (10) according to claim 7 or 8. 10 . A computer program product, such as a computer-readable program carrier, comprising or storing computer program instructions, which, when executed by a processor, at least assist in implementing the steps of the method according to claim 1 .

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