CN116101359A - Automobile steering wheel and control method thereof - Google Patents

Automobile steering wheel and control method thereof Download PDF

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Publication number
CN116101359A
CN116101359A CN202310183615.1A CN202310183615A CN116101359A CN 116101359 A CN116101359 A CN 116101359A CN 202310183615 A CN202310183615 A CN 202310183615A CN 116101359 A CN116101359 A CN 116101359A
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CN
China
Prior art keywords
steering
target
extension stroke
telescopic
steering wheel
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310183615.1A
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Chinese (zh)
Inventor
郑少强
刘辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GAC Honda Automobile Co Ltd
Guangqi Honda Automobile Research and Development Co Ltd
Original Assignee
GAC Honda Automobile Co Ltd
Guangqi Honda Automobile Research and Development Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by GAC Honda Automobile Co Ltd, Guangqi Honda Automobile Research and Development Co Ltd filed Critical GAC Honda Automobile Co Ltd
Priority to CN202310183615.1A priority Critical patent/CN116101359A/en
Publication of CN116101359A publication Critical patent/CN116101359A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/04—Hand wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/04—Hand wheels
    • B62D1/06—Rims, e.g. with heating means; Rim covers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Steering Controls (AREA)

Abstract

The invention discloses an automobile steering wheel and a control method thereof, wherein the steering wheel comprises a body part, a telescopic part and a control module; the body part is used for holding operation, transmitting steering torque generated by the holding operation, and is provided with a notch; the telescopic component is retracted towards the direction of the body component or extends out from the body component towards the direction of the notch so as to fill the notch; the control module controls the extension stroke of the telescopic component according to the steering amplitude of the body component. The body part and the telescopic part in the steering wheel of the automobile form a structure with a changeable outline shape; the notch of the body part can enable the sight of the driver to reach the outside of the automobile, so that the visual field of the driver is improved, and the driving safety is ensured; the extension stroke of the telescopic part changes along with the steering amplitude of the body part, so that the telescopic part can fill the notch, a driver can conveniently grasp the position, and the driving safety is ensured. The invention is widely applied to the technical field of automobiles.

Description

Automobile steering wheel and control method thereof
Technical Field
The invention relates to the technical field of automobiles, in particular to an automobile steering wheel and a control method thereof.
Background
The steering wheel is a wheel-shaped device for steering a traveling direction of a vehicle such as an automobile, and functions to convert a force applied to an edge of the steering wheel by a driver into a torque and transmit the torque to a steering shaft. Because the steering wheel on the automobile is arranged between the driving position and the windshield, the steering wheel can block the sight of a driver, so that the driving safety is influenced. Some steering wheels have a lifting function, namely, the steering wheel connected to the steering shaft is lifted by changing the position and the direction of the steering shaft. The steering wheel with the lifting function can reduce the obstruction of the sight of the driver by adjusting the position. However, the range of lifting and lowering of the steering wheel is limited due to factors such as the leg space of the driver below the steering wheel, the mechanical connection of the steering shaft to the steering arm and the like, and the safety requirements for the driving posture, and thus the effect of improving the driver's vision is limited.
Disclosure of Invention
Aiming at the technical problems that the prior automobile steering wheel blocks the sight, the invention aims to provide an automobile steering wheel and a control method thereof.
In one aspect, an embodiment of the present invention includes an automotive steering wheel comprising:
a body member; the body component is used for holding operation and transmitting steering torque generated by the holding operation; the body part is provided with a notch;
a telescopic member; the telescopic component is used for retracting into the direction of the body component or extending out of the body component towards the notch;
a control module; the control module is used for controlling the extension stroke of the telescopic component according to the steering amplitude of the body component.
Further, the controlling the extension stroke of the telescopic member according to the steering amplitude of the body member includes:
detecting an actual steering amplitude of the body member by a position sensor;
determining a target extension stroke of the telescopic component according to the actual steering amplitude; the target extension stroke is positively correlated with the actual steering amplitude;
and generating a control signal corresponding to the target extension stroke.
Further, the controlling the extension stroke of the telescopic member according to the steering amplitude of the body member includes:
detecting an actual steering amplitude of the body member by a position sensor;
detecting a steering torque transmitted by the body member through a steering torque sensor;
determining a target steering magnitude of the body component based on the actual steering magnitude and the steering torque;
determining a target extension stroke of the telescopic component according to the target steering amplitude; the target extension stroke is positively correlated with the target steering amplitude;
and generating a control signal corresponding to the target extension stroke.
Further, the controlling the extension stroke of the telescopic member according to the steering amplitude of the body member includes:
acquiring road condition images through an image sensor;
acquiring a running speed through a vehicle speed sensor;
processing the road condition image to obtain a target running track;
determining a target steering amplitude of the body component according to the target travel track and the travel speed;
determining a target extension stroke of the telescopic component according to the target steering amplitude; the target extension stroke is positively correlated with the target steering amplitude;
and generating a control signal corresponding to the target extension stroke.
Further, the controlling the extension stroke of the telescopic member according to the steering amplitude of the body member further includes:
acquiring a braking moment through a braking moment sensor;
when the braking moment reaches a braking moment threshold value, adjusting the target extending stroke to the maximum value;
and generating a control signal corresponding to the target extension stroke.
Further, the portion of the body member adjacent the gap is a hollow sleeve; the telescopic part comprises a push rod and a telescopic part
Hydraulic driving machine
Constructing a structure; the driving mechanism is arranged inside the hollow sleeve;
one end of the ejector rod is connected with the driving mechanism, and driven by the driving mechanism, the ejector rod is retracted into the hollow sleeve or extends out of the hollow sleeve to the notch;
the driving mechanism is used for acquiring the control signal generated by the control module, driving the ejector rod to stretch and retract according to the control signal, and enabling the filling degree of the ejector rod to the gap to reach the target extending stroke.
Further, the telescopic component further comprises a resistance sensor; the control module detects the resistance born by the ejector rod when the ejector rod stretches through the resistance sensor, and when the resistance is larger than a resistance threshold value, the control module controls the driving mechanism to stop stretching the ejector rod, so that the ejector rod is maintained at the current position.
Further, the shape of the ejector rod is matched with the shape of the notch; when the ejector rod is completely extended, the ejector rod completely fills the notch, and the profile formed by the ejector rod and the body part is a closed pattern.
Further, the control module is used for controlling the telescopic component to fully extend and fully retract when the initialization check is carried out; and in a reversing state, controlling the telescopic part to extend completely.
On the other hand, the embodiment of the invention also comprises a control method of the automobile steering wheel, wherein the automobile steering wheel comprises a body part and a telescopic part; the body component is used for holding operation and transmitting steering torque generated by the holding operation; the body part is provided with a notch; the telescopic component is used for retracting into the direction of the body component or extending out of the body component towards the notch; the control method comprises the following steps:
and controlling the extension stroke of the telescopic component according to the steering amplitude of the body component.
The beneficial effects of the invention are as follows: in the steering wheel of the embodiment, the body part and the telescopic part form a structure with a changeable outline shape; the notch of the body part can enable the sight of the driver to reach the outside of the automobile, so that the visual field of the driver is improved, and the driving safety is ensured; the extension stroke of the telescopic part is controlled by the control module to change along with the change of the steering amplitude of the body part, so that when the steering amplitude of the body part reaches a proper value, the telescopic part can fill the gap, which is equivalent to the space occupied by the extension body part, thereby facilitating the grasping operation of a driver and ensuring the driving safety.
Drawings
FIG. 1 is a schematic illustration of an automotive steering system according to an embodiment;
FIG. 2 is a schematic view of the steering wheel in an embodiment in which the telescoping member is fully retracted into the body member;
FIG. 3 is a schematic view of the steering wheel in a configuration in which the telescoping member is fully extended into the direction of the notch in the embodiment;
FIG. 4 is a schematic diagram of a control module for discontinuous control of the extension stroke of a telescoping member in an embodiment.
Detailed Description
The steering wheel in this embodiment can be applied to the automobile steering system shown in fig. 1. Referring to fig. 1, an automotive steering system includes a steering wheel, a steering shaft, a steering gear, a steering rocker arm, and the like. The working principle of the automobile steering system is as follows: the driver holds the steering wheel, rotates the steering wheel to generate steering torque, and drives the steering shaft to rotate, and the steering shaft transmits the steering torque to the steering gear; the steering gear outputs steering force under hydraulic or electric power according to the steering torque transmitted by the steering shaft, and the steering rocker transmits the steering force output by the steering gear to the tie rod or the tie rod, so that steering wheels are pushed to deflect.
In this embodiment, the steering wheel has a structure as shown in fig. 2 and 3, and includes a body member, a telescopic member, a control module, and the like, wherein the control module is not shown in fig. 2 or 3. Referring to fig. 2 and 3, the body member is for a driver's grasp operation, and the driver can rotate the steering wheel to generate a steering torque that can be transmitted from the steering wheel to the steering shaft.
The body member is provided with a notch which may be located at an upper portion of the steering wheel at zero (when the steering wheel of the vehicle is directed toward the front). The existence of the notch enables the outline of the body part not to be a closed graph, so that the sight of a driver can pass through the notch, the shielding of the steering wheel to the sight of the driver is reduced, and the driving safety is guaranteed.
In this embodiment, if the notch is considered as a line that can be spliced with the outline of the body member into a closed figure, the length of the notch may be set to be up to one-fourth or more of the circumference of the closed figure.
Fig. 2 shows a state in which the telescopic member in the steering wheel is fully retracted in the direction of the body member. The telescopic part of the steering wheel is fully extended to the direction of the notch as shown in fig. 3. Referring to fig. 3, when the telescopic member is extended to the direction of the gap, the telescopic member may fill the gap, and at this time, the telescopic member may be regarded as an extension of the body member, so that the body member and the movable telescopic member form a steering wheel with a changeable shape, and when the telescopic member is retracted to the direction of the body member, the steering wheel has the gap that does not obstruct the line of sight, and when the telescopic member is extended to the direction of the gap, the steering wheel is restored to the profile of the closed figure, thereby facilitating the handling operation of the driver.
In this embodiment, the expansion and contraction amplitude of the expansion and contraction member is controlled by the control module. The control module can be an independent component with a control function of the steering wheel, such as a singlechip special for the steering wheel, and the like; it is also possible to use components with control functions that are common to automobiles or are provided by other devices, such as an electronic control unit ECU or the like mounted on the automobile.
In this embodiment, the telescopic component includes components such as a ram and a driving mechanism, where the driving mechanism may use a motor or a hydraulic machine as a power source. At least the portion of the body member adjacent the notch is a hollow sleeve, and the drive mechanism may be disposed within the hollow sleeve. The shape of the ejector rod is matched with the shape of the notch and the shape of the hollow sleeve (for example, the ejector rod is in the shape of an arc with the same radius), one end of the ejector rod is connected with the driving mechanism, and the other end of the ejector rod can freely extend to the direction of the notch. The driving mechanism is controlled to receive the control signal generated by the control module, and drives the ejector rod to retract into the hollow sleeve or extend out of the hollow sleeve to the notch according to the control signal.
In this embodiment, the ejector pin and the corresponding driving mechanism may be disposed only on one side of the body component located on the notch, at this time, the length of the ejector pin may be not less than the length of the notch, so that when the ejector pin extends completely, one end of the ejector pin may contact with the other side of the body component located on the notch, so that the ejector pin may completely fill the notch, that is, the profile formed by the ejector pin and the body component becomes a closed pattern, which is convenient for the driver to grasp.
In this embodiment, referring to fig. 3, the body component is located at two sides of the notch and is provided with two ejector pins and corresponding driving mechanisms respectively, that is, two ejector pins and two driving mechanisms are provided together, at this time, the length of each ejector pin may be not less than half of the length of the notch, so that when the two ejector pins extend completely, one end of each ejector pin may contact with one end of the other ejector pin (the dashed line in fig. 3 represents the contact surface of the two ejector pins), so that the two ejector pins can completely fill the notch, that is, the outline formed by the two ejector pins and the body component becomes a closed figure, which is convenient for the driver to grasp.
In this embodiment, the control module generates a corresponding control signal according to the steering amplitude of the body member in the steering wheel, and sends the control signal to the driving mechanism in the telescopic member, so as to control the extension stroke of the ejector rod in the telescopic member. In this embodiment, the extension stroke of the ejector rod may be represented by the length of the ejector rod extending to the position where the notch is located, or may be represented by the ratio of the length of the ejector rod extending to the position where the notch is located to the maximum length of the notch.
In this embodiment, when the control module controls the extension stroke of the telescopic member, continuous control may be performed, so that the extension stroke of the telescopic member always maintains continuous variation of the steering amplitude of the body member; discontinuous control can also be performed, and the telescopic part is controlled to extend or retract only when the steering amplitude of the body part reaches a preset threshold value, so that the extending stroke of the telescopic part is changed.
Specifically, the control module may perform the following steps when controlling the extension stroke of the jack in the telescopic member:
S1A, detecting the actual steering amplitude of the body part through a position sensor;
S2A, determining a target extension stroke of the telescopic component according to the actual steering amplitude; the target extension stroke is positively correlated with the actual steering amplitude;
S3A, generating a control signal corresponding to the target extension stroke.
Steps S1A-S3A are a first control manner that the control module can execute in this embodiment.
When executing step S1A, the control module may call the position sensor to acquire data detected by the position sensor. The position sensor may be mounted at a position of the steering wheel or the steering shaft, etc., and the position sensor may detect an angular position of the steering wheel with respect to its zero point, i.e. the data detected by the position sensor may represent an angle by which the steering wheel is turned with respect to its zero point, in this embodiment referred to as an actual steering amplitude of the body member.
In step S2A, the control module determines the target extension stroke of the telescopic member according to the actual steering amplitude detected by the sensor, so that the target extension stroke is positively correlated with the actual steering amplitude.
In this embodiment, when the control module continuously controls the extension stroke of the telescopic member, the target extension stroke l of the telescopic member may be set target Set as a function of actual steering amplitude omega, i.e. l target =f (ω), where f () may be a positive correlation function such as a direct proportional function.
In this embodiment, through carrying out continuous control to the extension stroke of telescopic member, can make the extension stroke of telescopic member and actual steering range real-time correlation to make the driver can judge the actual steering range of body part through observing the extension stroke of telescopic member, thereby judge the actual steering range of car leading wheel, thereby be favorable to the driver to confirm the actual steering range of car leading wheel fast, be favorable to guaranteeing driving safety, when the body part rotates more than the actual steering range of round difficult to confirm body part, the suggestion effect of telescopic member is especially obvious.
Referring to FIG. 4, a steering amplitude threshold ω can be set when the control module is performing discontinuous control of the extension stroke of the telescoping member 0 (e.g., 45 °) when the actual steering amplitude ω of the body member is less than the steering amplitude threshold ω 0 At the time, the target extension stroke l of the telescopic member target 0 according to the target extension stroke l at the time target The generated control signal can control the extension stroke of the driving mechanism to be 0, namely the ejector rod is completely retracted into the hollow sleeve of the body part, the length of the notch reaches the maximum value, and the upper part of the steering wheel can not shield the sight of a driver due to the existence of the notch, so that the visual field of the driver is improved, and the driving safety is guaranteed; when the actual steering amplitude omega of the body component is greater than or equal to the steering amplitude threshold omega 0 At the time, the target extension stroke l of the telescopic member target At maximum, according to the target extension stroke l at that time target The generated control signal can control the extension stroke of the driving mechanism to be the maximum, namely the ejector rod extends out of the hollow sleeve of the body part completely, the notch is filled by the ejector rod completely, the profile formed by the ejector rod and the body part is a closed pattern, and a driver can grasp the ejector rod, so that the driver can operate the steering wheel conveniently, and the driving convenience is improved.
In step S3A, the control module generates a control signal corresponding to the target extension stroke, specifically, the control module may encapsulate the target extension stroke and other data into a data packet, so as to obtain the control signal, send the control signal to the driving mechanism of the telescopic component, and the driving mechanism drives the ejector rod to extend or retract to a position corresponding to the target extension stroke under the control of the control signal.
In this embodiment, when the control module controls the extension stroke of the ejector rod in the telescopic member, the following steps may be further executed:
S1B, detecting the actual steering amplitude of the body part through a position sensor;
S2B, detecting the steering torque transmitted by the body part through a steering torque sensor;
S3B, determining a target steering amplitude of the body part according to the actual steering amplitude and the steering torque;
S4B, determining a target extension stroke of the telescopic component according to the target steering amplitude; the target extension stroke is positively correlated with the target steering amplitude;
S5B, generating a control signal corresponding to the target extension stroke.
Steps S1B-S5B are a second control manner that the control module can execute in this embodiment.
The principle of step S1B is the same as that of step S1A, and the obtained actual steering amplitude ω represents an angle by which the position of the body member is actually rotated with respect to the zero point position thereof.
In step S2B, the control module may call the steering torque sensor to obtain data detected by the steering torque sensor. Referring to fig. 1, a steering torque sensor may be installed at a steering shaft or a steering gear or the like, and the steering torque sensor may detect the magnitude of a steering torque transmitted from a steering wheel to the steering shaft or the steering gear.
Since the hardware parameters of the components of the steering system are unchanged, the steering torque obtained by performing step S2B may represent the rotational tendency of the body component. In step S3B, the actual steering amplitude may be used as an initial value of the steering amplitude, a (second) derivative of the steering amplitude with respect to time is calculated according to the steering torque and hardware parameters such as moment of inertia of related components in the steering system, and then the steering amplitude expected to be achieved by the body component, that is, the target steering amplitude of the body component, is calculated by means of integration or the like.
In step S3B, the actual steering amplitude is the position of the body component at the current moment, and the target steering amplitude indicates the position of the body component that can be reached after a period of time is expected to be future under the action of the steering torque, so by executing step S3B, the position of the body component that can be reached after a period of time is expected to be future.
The principle of step S4B is similar to that of step S2A, and the "actual steering amplitude" in step S2A may actually be replaced with the "target steering amplitude", i.e., step S4B is obtained. Because step S2A calculates the target extension stroke of the telescopic member according to the position of the main body member at the current moment, step S4B can calculate the target extension stroke of the telescopic member according to the predicted position of the main body member at the future moment, step S5B is executed after step S4B is executed, and a control signal corresponding to the target extension stroke is generated, so that the ejector rod in the telescopic member can be controlled to reach the position of the target extension stroke in advance.
For example, when the body part of the steering wheel is predicted to return to the normal position (to the zero position) by executing the step S4B, the ejector rod in the telescopic part can be controlled to be completely retracted into the hollow sleeve of the body part in advance by executing the step S5B, so that the notch in the steering wheel is formed in advance, and when the body part is actually returned, a driver can immediately obtain a good view from the position where the notch is located, and driving safety is ensured; in contrast, when the body component of the steering wheel is expected to deflect by a larger extent (for example, the deflection angle relative to the zero position is larger than the steering amplitude threshold value by 45 °), the execution of the step S4B can control the ejector rod in the telescopic component to extend out of the hollow sleeve completely in advance, so that the steering wheel is in a closed state in advance, thereby facilitating the handling operation of the steering wheel by a driver, enhancing the control of the running direction of the automobile and ensuring the driving safety.
In this embodiment, when the control module controls the extension stroke of the ejector rod in the telescopic member, the following steps may be further executed:
S1C, acquiring road condition images through an image sensor;
S2C, acquiring a running speed through a vehicle speed sensor;
S3C, processing the road condition image to obtain a target running track;
S4C, determining the target steering amplitude of the body part according to the target running track and the running speed;
S5C, determining a target extension stroke of the telescopic component according to the target steering amplitude; the target extension stroke is positively correlated with the target steering amplitude;
S6C, generating a control signal corresponding to the target extension stroke.
Steps S1C-S6C are a third control manner that the control module can execute in this embodiment.
The image sensor and the vehicle speed sensor invoked by the control module in steps S1C and S2C may be steering wheel independent sensors mounted on the vehicle.
In step S1C, an image sensor may be installed in front of the automobile, and the image sensor may capture an image of the front of the automobile when the automobile is traveling forward, which is referred to as a road condition image in this embodiment.
In step S2C, the vehicle speed sensor may calculate the current running speed of the vehicle by detecting the rotational speed of the wheels, or may receive the positioning signal to calculate the current running speed of the vehicle.
In step S3C, the control module runs an image processing algorithm to extract the contour of the road condition image, so as to identify the information such as the lane line or the road shoulder of the road where the automobile is located. When the vehicle is traveling normally, the vehicle will travel along the extending direction of the lane line or the road shoulder, and therefore the identified extending direction of the lane line or the road shoulder can be taken as the target traveling track, i.e., the track along which the vehicle is to travel is predicted.
In step S4C, the control module calculates a wheel deflection angle to be reached by each position of the vehicle on the target running track according to the curvature radius of the target running track, and calculates a target steering amplitude to be reached by the body component at each position on the target running track according to the wheel deflection angle and the steering ratio; the control module calculates the time when the automobile reaches each position on the target running track according to the length and the running speed of the target running track; and calculating the target steering amplitude of the body part at each moment in the future period according to the calculation result.
The principle of the step S5C is similar to that of the step S4B, the principle is that the target extension stroke of the telescopic component is calculated according to the predicted position of the body component at the future moment, the step S6C is executed after the step S5C is executed, a control signal corresponding to the target extension stroke is generated, the ejector rod in the telescopic component can be controlled to reach the position of the target extension stroke in advance, and driving safety is guaranteed. By executing the step S5C, the position of the ejector rod in the telescopic component can be pre-determined according to the road condition of the vehicle running, so that the shape of the steering wheel can be matched with the road condition of the vehicle running, and the driving safety is further improved.
In this embodiment, when controlling the extension stroke of the jack in the telescopic member, the control module further performs the following steps after performing steps S1A-S3A, S1B-S5B or S1C-S6C:
s7, acquiring braking moment through a braking moment sensor;
s8, when the braking torque reaches a braking torque threshold value, adjusting the target extending stroke to the maximum value;
s9, generating a control signal corresponding to the target extension stroke.
In step S7, the braking torque sensor called by the control module may be installed at a position of a brake of the automobile, and the braking torque sensor may measure braking torque generated when the brake brakes.
In step S8, the control module sets a braking moment threshold, when the braking moment reaches the braking moment threshold, it may be determined that sudden braking occurs in the automobile, and the control module adjusts the target extension stroke obtained by executing step S2A, S B or S5C to a maximum value, and executes step S9 to generate a control signal corresponding to the target extension stroke. When the control module sends the control signal generated in the execution step S9 to the telescopic component, the ejector rod in the telescopic component can be controlled to reach the position corresponding to the maximum value of the target extension stroke, namely, the ejector rod in the telescopic component is completely extended at the moment, so that the steering wheel is completely closed to form the outline of a closed figure, a driver can timely grasp the steering wheel, the driving direction of an automobile is effectively controlled, and the driving safety during emergency braking is ensured.
In this embodiment, the telescopic member further includes a resistance sensor, and the resistance sensor can be installed at the position of the driving mechanism in the hollow sleeve of the body member, and detects the resistance applied when the jack stretches. The control module detects through the resistance sensor in real time, and when the resistance received by the ejector rod is detected to be greater than a resistance threshold value, the control module can judge that the resistance received by the ejector rod is overlarge, and controls the driving mechanism to stop stretching the ejector rod, so that the ejector rod is maintained at the current position.
Through setting up the resistance sensor and carrying out corresponding control algorithm, can avoid the telescopic member to continue flexible when objects such as driver's hand or foreign matter are in the breach position of steering wheel, thereby lead to pressing from both sides the injury driver or damage the device on the steering wheel, guarantee safe in utilization.
In this embodiment, the control module enters the initialization check state after the driver starts the vehicle. When the control module performs the initialization check, the telescopic part is controlled to extend completely and then retract completely, so that a visual effect with a technological sense is generated, and a driver is prompted that the current control module is in the initialization check state.
In this embodiment, control module is in the car and hangs into reverse gear, when being in the state of backing a car, and the control telescopic member stretches out completely for the steering wheel is closed completely into the profile of closed figure, thereby makes the driver in time hold the operation to the steering wheel, thereby effectively control the direction of travel of car, the driving safety when guaranteeing the back.
In this embodiment, a computer program may be obtained by programming, and the computer program is written into a computer having a control function, such as a control module, and when executed by the computer, the computer may communicate with the body component and the telescopic component in the steering wheel in this embodiment, so that the computer controls the telescopic extent of the telescopic component according to the steering extent of the body component, that is, the computer may implement the control method for the steering wheel of the automobile in this embodiment, and implement the same effect as the steering wheel of the automobile in this embodiment for guaranteeing driving safety.
It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly or indirectly fixed or connected to the other feature. Further, the descriptions of the upper, lower, left, right, etc. used in this disclosure are merely with respect to the mutual positional relationship of the various components of this disclosure in the drawings. As used in this disclosure, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. In addition, unless defined otherwise, all technical and scientific terms used in this example have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description of the embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used in this embodiment includes any combination of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element of the same type from another. For example, a first element could also be termed a second element, and, similarly, a second element could also be termed a first element, without departing from the scope of the present disclosure. The use of any and all examples, or exemplary language (e.g., "such as") provided herein, is intended merely to better illuminate embodiments of the invention and does not pose a limitation on the scope of the invention unless otherwise claimed.
It should be appreciated that embodiments of the invention may be implemented or realized by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer readable memory. The methods may be implemented in a computer program using standard programming techniques, including a non-transitory computer readable storage medium configured with a computer program, where the storage medium so configured causes a computer to operate in a specific and predefined manner, in accordance with the methods and drawings described in the specific embodiments. Each program may be implemented in a high level procedural or object oriented programming language to communicate with a computer system. However, the program(s) can be implemented in assembly or machine language, if desired. In any case, the language may be a compiled or interpreted language. Furthermore, the program can be run on a programmed application specific integrated circuit for this purpose.
Furthermore, the operations of the processes described in the present embodiments may be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The processes (or variations and/or combinations thereof) described in this embodiment may be performed under control of one or more computer systems configured with executable instructions, and may be implemented as code (e.g., executable instructions, one or more computer programs, or one or more applications), by hardware, or combinations thereof, that collectively execute on one or more processors. The computer program includes a plurality of instructions executable by one or more processors.
Further, the method may be implemented in any type of computing platform operatively connected to a suitable computing platform, including, but not limited to, a personal computer, mini-computer, mainframe, workstation, network or distributed computing environment, separate or integrated computer platform, or in communication with a charged particle tool or other imaging device, and so forth. Aspects of the invention may be implemented in machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, optical read and/or write storage medium, RAM, ROM, etc., such that it is readable by a programmable computer, which when read by a computer, is operable to configure and operate the computer to perform the processes described herein. Further, the machine readable code, or portions thereof, may be transmitted over a wired or wireless network. When such media includes instructions or programs that, in conjunction with a microprocessor or other data processor, implement the steps described above, the invention described in this embodiment includes these and other different types of non-transitory computer-readable storage media. The invention also includes the computer itself when programmed according to the methods and techniques of the present invention.
The computer program can be applied to the input data to perform the functions described in this embodiment, thereby converting the input data to generate output data that is stored to the non-volatile memory. The output information may also be applied to one or more output devices such as a display. In a preferred embodiment of the invention, the transformed data represents physical and tangible objects, including specific visual depictions of physical and tangible objects produced on a display.
The present invention is not limited to the above embodiments, but can be modified, equivalent, improved, etc. by the same means to achieve the technical effects of the present invention, which are included in the spirit and principle of the present invention. Various modifications and variations are possible in the technical solution and/or in the embodiments within the scope of the invention.

Claims (10)

1. An automotive steering wheel, the automotive steering wheel comprising:
a body member; the body component is used for holding operation and transmitting steering torque generated by the holding operation; the body part is provided with a notch;
a telescopic member; the telescopic component is used for retracting into the direction of the body component or extending out of the body component towards the notch;
a control module; the control module is used for controlling the extension stroke of the telescopic component according to the steering amplitude of the body component.
2. The steering wheel of claim 1, wherein said controlling the extension stroke of said telescoping member according to the magnitude of the steering of said body member comprises:
detecting an actual steering amplitude of the body member by a position sensor;
determining a target extension stroke of the telescopic component according to the actual steering amplitude; the target extension stroke is positively correlated with the actual steering amplitude;
and generating a control signal corresponding to the target extension stroke.
3. The steering wheel of claim 1, wherein said controlling the extension stroke of said telescoping member according to the magnitude of the steering of said body member comprises:
detecting an actual steering amplitude of the body member by a position sensor;
detecting a steering torque transmitted by the body member through a steering torque sensor;
determining a target steering magnitude of the body component based on the actual steering magnitude and the steering torque;
determining a target extension stroke of the telescopic component according to the target steering amplitude; the target extension stroke is positively correlated with the target steering amplitude;
and generating a control signal corresponding to the target extension stroke.
4. The steering wheel of claim 1, wherein said controlling the extension stroke of said telescoping member according to the magnitude of the steering of said body member comprises:
acquiring road condition images through an image sensor;
acquiring a running speed through a vehicle speed sensor;
processing the road condition image to obtain a target running track;
determining a target steering amplitude of the body component according to the target travel track and the travel speed;
determining a target extension stroke of the telescopic component according to the target steering amplitude; the target extension stroke is positively correlated with the target steering amplitude;
and generating a control signal corresponding to the target extension stroke.
5. The vehicle steering wheel according to any one of claims 2-4, wherein said controlling the extension stroke of said telescopic member according to the magnitude of the steering of said body member further comprises:
acquiring a braking moment through a braking moment sensor;
when the braking moment reaches a braking moment threshold value, adjusting the target extending stroke to the maximum value;
and generating a control signal corresponding to the target extension stroke.
6. The automotive steering wheel according to any one of claims 2 to 4, wherein:
the part of the body part adjacent to the notch is a hollow sleeve; the telescopic part comprises a push rod and a hydraulic driving mechanism; the driving mechanism is arranged inside the hollow sleeve;
one end of the ejector rod is connected with the driving mechanism, and driven by the driving mechanism, the ejector rod is retracted into the hollow sleeve or extends out of the hollow sleeve to the notch;
the driving mechanism is used for acquiring the control signal generated by the control module, driving the ejector rod to stretch and retract according to the control signal, and enabling the filling degree of the ejector rod to the gap to reach the target extending stroke.
7. The vehicle steering wheel of claim 6, wherein the telescoping member further comprises a resistance sensor; the control module detects the resistance born by the ejector rod when the ejector rod stretches through the resistance sensor, and when the resistance is larger than a resistance threshold value, the control module controls the driving mechanism to stop stretching the ejector rod, so that the ejector rod is maintained at the current position.
8. The vehicle steering wheel of claim 6, wherein the shape of the carrier bar matches the shape of the notch; when the ejector rod is completely extended, the ejector rod completely fills the notch, and the profile formed by the ejector rod and the body part is a closed pattern.
9. The steering wheel of any one of claims 1-4, wherein the control module is configured to control the telescoping member to fully extend and fully retract upon an initialization check; and in a reversing state, controlling the telescopic part to extend completely.
10. A control method of an automobile steering wheel, characterized in that the automobile steering wheel comprises a body part and a telescopic part; the body component is used for holding operation and transmitting steering torque generated by the holding operation; the body part is provided with a notch; the telescopic component is used for retracting into the direction of the body component or extending out of the body component towards the notch; the control method comprises the following steps:
and controlling the extension stroke of the telescopic component according to the steering amplitude of the body component.
CN202310183615.1A 2023-02-28 2023-02-28 Automobile steering wheel and control method thereof Pending CN116101359A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310183615.1A CN116101359A (en) 2023-02-28 2023-02-28 Automobile steering wheel and control method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310183615.1A CN116101359A (en) 2023-02-28 2023-02-28 Automobile steering wheel and control method thereof

Publications (1)

Publication Number Publication Date
CN116101359A true CN116101359A (en) 2023-05-12

Family

ID=86254314

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310183615.1A Pending CN116101359A (en) 2023-02-28 2023-02-28 Automobile steering wheel and control method thereof

Country Status (1)

Country Link
CN (1) CN116101359A (en)

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