Steering wheel-less driving operation system of intelligent cockpit, vehicle, method and device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BYD CO LTD
- Filing Date
- 2026-07-07
- Publication Date
- 2026-08-04
AI Technical Summary
机械转向由方向盘通过转向柱等机械结构与车轮机构连接实现转向控制,方向盘所能集成的功能按键多为固定布局,结构复杂且成本较高;线控转向虽取消机械连接,但现有方案仍保留传统方向盘轮廓,仅在局部增设小型触控模块,功能集成度低且空间占用率高
[0003]本申请旨在至少解决相关技术中存在的技术问题之一。为此,本申请提出一种智能座舱的无方向盘驾驶操作系统、车辆、方法及设备,以驾驶显示屏替代方向盘并实现方向盘功能,取消机械转向部件,降低了驾驶操作系统以及车辆的硬件成本。
Smart Images

Figure CN122501436A_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of vehicle technology, and in particular relates to a steering wheel-less driving operating system, vehicle, method and device for an intelligent cockpit. Background Technology
[0002] Current automotive steering systems are mainly divided into mechanical steering and steer-by-wire. Mechanical steering uses a steering wheel connected to the wheel mechanism via a steering column and other mechanical structures to achieve steering control. The function buttons integrated into the steering wheel are mostly in a fixed layout, resulting in a complex structure and high cost. Although steer-by-wire eliminates the mechanical connection, current solutions still retain the traditional steering wheel outline, only adding small touch modules in certain areas, resulting in low functional integration and high space occupancy. While some related technologies improve the flexibility of customizing driving functions on the steering wheel by embedding a display screen, this is still an incremental modification in the context of a smart cockpit architecture. Adding a display screen to the existing steering system increases the overall cost of the steering system. Summary of the Invention
[0003] This application aims to address at least one of the technical problems existing in the related art. To this end, this application proposes a steering wheel-less driving operating system, vehicle, method, and device for an intelligent cockpit, which replaces the steering wheel with a driving display screen and realizes the steering wheel function, eliminating mechanical steering components and reducing the hardware cost of the driving operating system and vehicle.
[0004] In a first aspect, this application provides a steering wheel-less driving operating system for a smart cockpit, the system comprising: A driver display screen is configured to receive steering input operations from a driver; the steering input operations include touch operations on the driver display screen's operating interface, and / or the steering input operations include rotation operations on the driver display screen's body; wherein the driver display screen is rotatable relative to the vehicle body to support the rotation operations; The control device is configured to generate steering control commands based on the steering input operation; The steering actuator is configured to control the vehicle steering according to the steering control command; An angle sensor, connected to the driver display screen, is used to detect the rotation angle of the driver display screen; A torque sensor, connected to the driver display screen, is used to detect the rotational torque of the driver display screen; The rotation angle and the rotation torque are used to characterize the rotation operation.
[0005] In the above technical solution, the driver display screen is configured to receive touch operations on the driver display screen's operating interface and / or rotation operations on the driver display screen itself. This enables the acquisition of the driver's steering intentions through dual-layer redundant input. Even in the event of a single input path failure, the system can continue to acquire steering input operations to maintain the vehicle's steering capability, thus improving the safety of steering control. After the steering input operation is processed by the control module, steering control commands are sent to the steering actuator to drive the wheels. This allows for driving operations through the driver display screen. Compared to the method of controlling vehicle steering by combining the display screen and steering wheel in related technologies, using the driver display screen to replace the steering wheel and realize the steering wheel function eliminates the need for the steering wheel and related hardware components. Furthermore, the driver display screen can use existing instrument displays or other displays and can be flexibly adjusted for the operating interface. While ensuring the flexibility of customizing the steering wheel driving function, this effectively reduces the hardware costs of the driving operating system and the vehicle.
[0006] Secondly, this application provides a vehicle including a steering wheel-less driving operating system for an intelligent cockpit as described in the first aspect above.
[0007] Thirdly, this application provides a steering wheel-less driving operation method for an intelligent cockpit, the method comprising: The driver's steering input is received through the driver display screen; the steering input includes touch operation on the driver display screen interface, and / or the steering input includes rotation operation on the driver display screen body. Based on the steering input operation, a steering control command is generated; The vehicle is steered according to the steering control command via the steering actuator.
[0008] Fourthly, this application provides an electronic device including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steering wheel-less driving operation method of the smart cockpit as described in the third aspect above.
[0009] Fifthly, this application provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steering wheel-less driving operation method of the intelligent cockpit as described in the third aspect above.
[0010] Sixthly, this application provides a chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run programs or instructions to implement the steering wheel-less driving operation method of the intelligent cockpit as described in the third aspect.
[0011] In a seventh aspect, this application provides a computer program product, including a computer program that, when executed by a processor, implements the steering wheel-less driving operation method of the intelligent cockpit as described in the third aspect above.
[0012] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0013] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is one of the structural schematic diagrams of the steering wheel-less driving operating system of the smart cockpit provided in some embodiments of this application; Figure 2 This is the second schematic diagram of the structure of the intelligent cockpit's steering wheel-less driving operating system provided in some embodiments of this application; Figure 3 This is the third of the structural schematic diagrams of the steering wheel-less driving operating system for the intelligent cockpit provided in some embodiments of this application; Figure 4 This is the fourth of the structural schematic diagrams of the steering wheel-less driving operating system for the intelligent cockpit provided in some embodiments of this application; Figure 5 This is the fifth of several schematic diagrams of the steering wheel-less driving operating system for a smart cockpit provided in some embodiments of this application; Figure 6 This is the sixth of several schematic diagrams of the steering wheel-less driving operating system for a smart cockpit provided in some embodiments of this application; Figure 7 This is one of the flowcharts illustrating a steering wheel-less driving operation method for an intelligent cockpit provided in some embodiments of this application; Figure 8 This is a second schematic flowchart of a steering wheel-less driving operation method for an intelligent cockpit provided in some embodiments of this application; Figure 9 These are schematic diagrams of the structure of electronic devices provided in some embodiments of this application.
[0014] Explanation of reference numerals in the attached figures: 101: Driver display screen; 102: Control device; 103: Steering actuator; 104: Steering angle sensor; 105: Torque sensor; 106: Road feel feedback device; 107: Telescopic adjustment device; 108: Steering motor; 109: Rack and pinion steering gear; 110: Wheel assembly; 900: Electronic equipment; 901: Processor; 902: Memory. Detailed Implementation
[0015] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0016] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0017] The following description, in conjunction with the accompanying drawings, details the steering wheel-less driving operating system, vehicle, method, and equipment for the intelligent cockpit provided in this application, through specific embodiments and application scenarios.
[0018] Figure 1 This is one of the structural schematic diagrams of a steering wheel-less driving operating system for an intelligent cockpit provided in some embodiments of this application. For example... Figure 1 As shown, this application embodiment provides a steering wheel-less driving operating system for a smart cockpit, including: The driver display screen 101 is configured to receive steering input operations from the driver; the steering input operations include touch operations on the driver display screen's operating interface, and / or steering input operations include rotation operations on the driver display screen body; wherein the driver display screen is rotatable relative to the vehicle body to support the rotation operations. Control device 102 is configured to generate steering control commands based on steering input operations; The steering actuator 103 is configured to control the vehicle steering according to steering control commands.
[0019] In some embodiments, the driver display screen 101 can be used for information display and steering control. Specifically, the driver display screen 101 is configured to have mechanical degrees of freedom of rotation relative to the vehicle body, and can receive physical rotation input from the driver; and the driver display screen 101 has an operating interface with touch sensing function, which can recognize the driver's touch operation.
[0020] As an example, the driver display screen interface may include interactive components such as a virtual steering wheel, touch sliders, direction arrows, and function buttons. The shape and functional layout of the interface can be dynamically adjusted according to driving mode, vehicle speed, or user preference data. In some embodiments, when the steering input operation is a turn operation or the vehicle is in autonomous driving mode, the interface may also be configured to weaken or hide the steering interaction components, and instead display information about the vehicle's driving status.
[0021] It is understandable that physical steering wheels typically have fixed layout physical buttons or levers integrated on their surface, while the driver display screen 101 can be software-defined to display a richer operating interface and has rotational freedom, allowing the driver to input steering intentions by directly rotating the display screen itself. Compared to the combination of a steering wheel and a display screen, this embodiment of the application directly uses the driver display screen 101 to replace the steering wheel, eliminating the steering wheel and its related mechanical components, thus reducing the vehicle's hardware costs.
[0022] In related technologies, physical steering wheels typically occupy fixed space in the cockpit, and even if their size can be reduced through folding or other means, their physical occupation still exists. However, in some embodiments of this application, the driver display screen 101 is connected to the vehicle body via a telescopic adjustment device. Combined with the telescopic adjustment device, the driver display screen 101 can be retracted to a non-operational position in autonomous driving mode to be embedded in or close to the vehicle body, which helps to free up space in the front of the cockpit.
[0023] Steering input operations include touch operations on the driver display screen interface and / or rotation operations on the driver display screen itself; in other words, steering input operations can be touch operations, rotation operations, or a combination of touch operations and rotation operations.
[0024] In some embodiments, the steering input operation includes a touch operation on the user interface of the driver display screen 101. In some embodiments, the steering input operation includes a rotation operation on the main body of the driver display screen 101. In some embodiments, the steering input operation includes both a touch operation on the user interface of the driver display screen 101 and a rotation operation on the main body of the driver display screen 101. In some embodiments, the driver display screen 101 may rotate relative to the vehicle body to support the rotation operation only when the steering input operation includes a rotation operation on the main body of the driver display screen 101.
[0025] In some embodiments, when touch and steering operations coexist, one type of steering input operation is masked by setting priorities to avoid conflicts. Furthermore, in the event of a failure in a single input method, the other input method can serve as a backup to continue providing steering control capabilities. For example, when the driver's hands are wet, causing a decrease in capacitive touch sensitivity, steering input can still be used normally; and when the steering mechanism is obstructed by foreign objects, causing poor rotation, touch operation can serve as a backup steering input.
[0026] Touch operation refers to the contact input behavior of the driver's finger or stylus on the operating interface of the driving display screen, including but not limited to clicking, pressing, swiping, and dragging. The driving display screen 101 can support touch recognition by covering its surface with a capacitive touch sensing layer; it can also use pressure-sensitive touch technology, which is not specifically limited in this embodiment.
[0027] Rotation operation refers to the physical action of the driver rotating the display screen and applying torque to make it rotate around the mounting axis; rotation operation is directly applied to the display screen, and its action (holding with both hands, rotation angle, etc.) is usually consistent with the corresponding method of traditional mechanical steering wheel.
[0028] The control device 102 can be a vehicle control unit (VCU), electronic control unit (ECU), or similar device, used to collect steering input signals from the driver display module and process the data to generate control commands that can be used to drive the actuators. For example, the control device 102 can have a built-in vehicle dynamics model, combining steering input operations and vehicle operating data to solve for the front wheel angle sequence and generate steering control commands; alternatively, it can use a proportional-integral-derivative (PID) control algorithm with the deviation between the target steering wheel angle (which can be determined based on the steering input operation) and the actual steering wheel angle (which can be obtained through a wheel angular displacement sensor) as input to determine the steering control commands. In some embodiments, the steering control commands refer to digital control signals generated by the control device, which may include parameters such as the target steering wheel angle, steering angular velocity, and steering torque.
[0029] The steering actuator 103 is used to receive steering control commands and perform steering actions. For example, it can be a rack and pinion steering actuator or a ball steering actuator. This application does not limit the specific structure of the steering actuator 103.
[0030] The intelligent cockpit driving operating system provided in this application embodiment is a steering wheel-less system. The driving display screen is configured to receive touch operations on the operating interface of the driving display screen and / or rotation operations on the driving display screen itself. This enables the acquisition of the driver's steering intentions through dual-layer redundant input. Even in the event of a single input path failure, the system can continue to acquire steering input operations to maintain the vehicle's steering capability, thus improving the safety of steering control. After the steering input operation is processed by the control module, a steering control command is sent to the steering actuator to drive the wheels to turn. This allows driving operations to be performed through the driving display screen. Compared with the method of controlling vehicle steering by combining the display screen and the steering wheel in related technologies, using the driving display screen to replace the steering wheel and realize the steering wheel function can eliminate the steering wheel and related hardware components. Furthermore, the driving display screen can use existing instrument display screens or other display screens and the operating interface of the driving display screen can be flexibly adjusted. While ensuring the flexibility of the steering wheel driving function customization, it effectively reduces the hardware cost of the driving operating system and the vehicle.
[0031] Figure 2 This is the second structural schematic diagram of the steering wheel-less driving operating system for an intelligent cockpit provided in some embodiments of this application. For example... Figure 2 As shown, in some embodiments of this application, the system further includes: Angle sensor 104 is connected to driver display screen 101 and is used to detect the rotation angle of driver display screen 101; Torque sensor 105, connected to driver display screen 101, is used to detect the rotational torque of driver display screen 101; Among them, the rotation angle and rotation torque are used to characterize the rotation operation.
[0032] Angle sensor 104 is connected to driver display screen 101, and can be installed, for example, at the pivot of driver display screen 101 or on the back of driver display screen 101, to detect the rotation angle of driver display screen relative to vehicle body. Angle sensor 104 can be a photoelectric encoder, magneto-electric encoder, or rotary transformer, etc. This application embodiment does not specifically limit the connection form and type of angle sensor 104 and driver display screen 101.
[0033] The torque sensor 105 is connected to the driver display screen 101, and can be installed on the rotating shaft or connecting structure of the driver display screen 101, etc., to detect the rotational torque applied to the driver display screen by the driver as a torque measuring device. Common torque sensors 105 include strain gauge type, magnetoelastic type and piezoelectric type, etc. The present application embodiment does not specifically limit the connection form and type of the torque sensor 105 and the driver display screen 101.
[0034] The rotation angle refers to the angular displacement of the driver display screen 101 from its initial position around the axis of rotation; while the rotation torque refers to the torque applied by the driver to the driver display screen 101 to make it rotate.
[0035] In some embodiments, rotation angle, rotation speed, and rotation torque are used to characterize the rotation operation. Rotation speed refers to the rate of change of the rotation angle of the driver display 101 with respect to time. The angle sensor 104 is also used to detect the rotation speed of the driver display 101. In some embodiments, the control device 102 is further configured to determine the rotation speed of the driver display 101 based on the rotation angle collected by the angle sensor 104. For example, the control device 102 may continuously collect the rotation angle of the driver display output by the angle sensor 104 at a preset sampling period to obtain rotation angle time-series data, and calculate the real-time rotation speed of the driver display 101 by calculating the angle change per unit time.
[0036] Understandably, compared to traditional mechanical steering systems that transmit the steering wheel's rotation state only to the wheels via mechanical transmission, the embodiments of this application quantify the direction, speed, and force of the driver's steering operation in detail by incorporating rotation angle, rotation speed, and rotation torque. This provides a detailed data foundation for the subsequent control device 102 to generate steering control commands based on the steering input operation.
[0037] The steering wheel-less driving operating system of the intelligent cockpit provided in this application embodiment, by configuring an angle sensor and a torque sensor connected to the driving display screen in the steering wheel-less driving operating system of the intelligent cockpit, realizes detailed quantification of the driver's rotation operation, and provides a high-precision data source for generating steering control commands based on the steering input operation; the rotation angle and rotation torque help the control device to achieve dynamic response adjustment based on the driver's operation characteristics.
[0038] Figure 3 This is the third schematic diagram of the structure of the intelligent cockpit's steering wheel-less driving operating system provided in some embodiments of this application. For example... Figure 3 As shown, in some embodiments of this application, the system further includes: The road feedback device 106 is connected to the driver display screen 101 and is used to output road feedback torque to the driver display screen 101. The road feedback torque includes at least rotational feedback torque and return torque to provide road feedback. The control device 102 is also configured to determine the road feel feedback torque based on the steering resistance information during the vehicle steering process, and to control the output of the road feel feedback device 106.
[0039] The road feedback device 106 is used to apply a controllable return torque to the driver display screen. For example, the road feedback device 106 is installed at the connection structure between the driver display screen and the vehicle body, so that the driver can feel the road feedback force when rotating the display screen.
[0040] Steering resistance information is used to quantify the road reaction force experienced by the steering wheels during vehicle steering. Specifically, it can be the resistance encountered by the steering actuator 103 when driving the wheels to steer, such as the lateral friction between the tires and the road surface, and the deformation resistance of the elastic elements of the suspension system. Steering resistance information is usually obtained indirectly from steering motor current, torque sensors, or dedicated resistance sensors.
[0041] The road feedback torque refers to the torque output by the road feedback device 106 to the driver display screen 101, used to provide road feedback to the driver. The road feedback torque includes at least rotational feedback torque and return-to-center torque. Specifically, the road feedback torque includes, but is not limited to: the return-to-center torque during the return-to-center process of the driver display screen after the vehicle has finished driving straight or turning; the vibration feedback torque caused by road surface unevenness during active steering by the driver; and the drag feedback torque caused by changes in tire lateral force.
[0042] Among them, the rotation feedback torque refers to the torque feedback output by the road feel feedback device 106 reflecting the road conditions when the driver rotates the driving display screen 101; the return torque refers to the reverse torque output by the road feel feedback device 106 to the driving display screen, the direction of which is opposite to the driver's rotation direction, used to restore the driving display screen to the centered position.
[0043] For example, the road feel feedback device 106 is installed on the pivot at the back of the driver display screen, and is arranged coaxially with the steering angle sensor and the torque sensor; the control device 102 uses the return torque as the command value and the steering torque applied by the driver measured by the torque sensor as the feedback value to form a torque closed-loop control system. When the driver does not apply torque, the road feel motor outputs the return torque, so that the driver display screen 101 automatically returns to center; when the driver applies torque, the system detects the difference between the hand torque and the return torque, and adjusts the output of the road feel feedback device 106 to maintain balance.
[0044] In the steering wheelless driving operating system of the intelligent cockpit provided in this application embodiment, the control device is configured to determine the return torque based on the steering resistance information during the vehicle's steering process, and control the road feel feedback device to output the road feel feedback torque to the driver's display screen; this realizes the real-time correlation between road feel feedback and steering resistance information. The road feel feedback device, through responsive torque output, enables the driver to perceive key information such as road surface adhesion status and vehicle dynamics, making up for the perception defects of purely visual or auditory information, and providing tactile dimension data for the driver's decision-making and operation, which helps to improve the safety of steering wheelless driving operation.
[0045] Figure 4 This is the fourth structural schematic diagram of the steering wheel-less driving operating system for an intelligent cockpit provided in some embodiments of this application. Figure 4As shown, in some embodiments of this application, the system further includes: The telescopic adjustment device 107 is used to adjust the spatial position of the driver display screen 101; The control device 102 is also configured to control the telescopic adjustment device according to the driving mode so that the spatial position of the driving display 101 matches the driving mode; The driving modes include automatic driving mode and manual driving mode; in automatic driving mode, the driving display screen 101 is in the retracted position; in manual driving mode, the driving display screen 101 is in the extended position.
[0046] The telescopic adjustment device 107 is installed between the driver display screen and the vehicle body to control the position change of the driver display screen in space, realizing the switching between the extended and retracted states. The telescopic adjustment device 107 can be a screw-slide rail telescopic mechanism or a hinged telescopic mechanism, etc., and this application embodiment does not specifically limit it.
[0047] In this embodiment, the driving mode is used as the trigger condition for automatic adjustment, realizing the intelligent switching of the human-machine interaction device state. Specifically, the telescopic adjustment device is linked with the driving mode, and the position adjustment is automatically completed when the mode is switched. In the autonomous driving mode, the driver does not need to continuously control the steering, and the driving display screen 101 can be retracted to optimize the cabin space. In the manual driving mode, the driver needs to directly control the steering and needs to extend the display screen to support touch operation or rotation operation.
[0048] In some embodiments, the driving mode is hard-triggered by a mode switch, such as a physical mode switching switch (knob or lever) on the vehicle's center console, allowing the driver to actively select between autonomous driving and manual driving modes. The switch signal is directly input to the control device 102, which then sends corresponding extension or retraction commands to the telescopic adjustment device 107. Alternatively, the control device 102 can comprehensively determine the readiness status of the autonomous driving system, the driver's status, the vehicle's driving status, and other conditions to automatically switch the driving mode and trigger the telescopic adjustment device 107.
[0049] In some embodiments, the driver display 101 is fully or partially retracted into the vehicle body in the retracted position. For example, in the retracted position, the driver display 101 can be retracted to a position close to the dashboard surface, or it can be completely retracted into a hidden cavity inside the dashboard. The retracted position is suitable for autonomous driving mode and provides more space support for the driver compared to a traditional mechanical steering wheel.
[0050] In some embodiments, the driver display screen 101 in the extended position forms a gap with the vehicle body to allow the driver to perform touch or rotation operations. It is understood that rotation operations require the driver to hold the driver display screen 101 and apply torque. If the driver display screen 101 is in the retracted position close to the dashboard, it is difficult for the driver to hold it and the rotation torque is interfered with by the vehicle body.
[0051] The steering wheel-less driving operating system for the intelligent cockpit provided in this application embodiment enables the variable and movable installation of the driving display screen through a telescopic adjustment device, thereby allowing the driving display screen to adapt to different driving states. In the retracted position, the driving display screen reduces its encroachment on the front space of the cockpit, providing the driver with more physical freedom compared to a traditional mechanical steering wheel. In the extended position, the driving display screen allows the driver to perform touch or rotation operations, providing a hardware foundation for steering wheel-less driving operation. The retractable and extended design of the driving display screen adapts to the multi-mode space requirements of the intelligent cockpit. In the autonomous driving mode, the completely freed cockpit space can be used to arrange other functional modules of the intelligent cockpit, improving the utilization efficiency and layout flexibility of the cockpit space.
[0052] In some embodiments of this application, the control device 102 is further configured to: In autonomous driving mode, in response to the command to raise the display screen, the telescopic adjustment device 107 is controlled to switch the driver display screen 101 to the extended position; Acquire rotation data of the driver display screen 101; If the rotation data meets the mode switching conditions, the driving mode will be switched to manual driving mode.
[0053] It is understandable that the display screen rise command can be triggered by the driver's active operation mode switch, or it can be triggered automatically based on other conditions. For example, when the vehicle is in autonomous driving mode and the driver display screen 101 is in the retracted position, if the driver intends to take over driving at any time or needs to familiarize themselves with the road conditions in advance, they can send a display screen rise command to the control device 102 through any of the following methods: voice command, touch the virtual button on the central control display screen of the smart cockpit, or press the physical wake-up button near the driver display screen 101.
[0054] When the driver display screen 101 is in the extended position, it supports the driver's rotation and touch operations. It can be assumed that the driver's intention to intervene is implied when the display screen is switched to the extended position. In this case, the rotation data is obtained and combined with the mode switching condition judgment to realize the progressive dual verification of mode switching, avoiding unexpected takeover caused by accidental touch or system misjudgment.
[0055] In some embodiments, the mode switching conditions include amplitude conditions and / or duration conditions for the rotation data. It is understood that the amplitude of the rotation data reflects the force or magnitude of the driver's rotation operation, and setting an amplitude threshold can effectively filter out unintentional accidental touches; while the duration of the rotation data reflects the continuity of the driver's rotation operation, effectively filtering out instantaneous high-amplitude rotations caused by accidental collisions or vibrations.
[0056] In some embodiments, the rotation data includes at least one of rotation angle, rotation speed, and rotation torque.
[0057] The steering wheel-less driving operation method for the intelligent cockpit provided in this application embodiment achieves effective differentiation between the driver's intention to actively intervene and unintentional accidental touches through a dual-condition design that uses the extended position of the display screen as a trigger premise and the mode switching condition as a judgment basis. This avoids unexpected switching to manual driving mode due to accidental touches or system misjudgment. The takeover is triggered only when the driver's intervention is accurately determined, thus achieving a safe handover of human-machine control between manual driving mode and autonomous driving mode.
[0058] In some embodiments of this application, the steering control command includes a touch steering control command generated based on a touch operation and a rotation steering control command generated based on a rotation operation; the rotation steering control command has a higher priority than the touch steering control command. The control device 102 is also configured to: When the steering actuator 103 is controlled to perform steering according to the steering control command, the touch steering control command is not responded to.
[0059] Touch-based steering control commands are steering control commands triggered by touch operations; their generation depends on touch data. Rotational steering control commands are steering control commands triggered by rotation operations; their generation depends on rotational data.
[0060] In some embodiments, the rotation data includes at least one of rotation angle, rotation speed, and rotation torque; Touch data includes at least one of touch position, touch displacement, and touch direction.
[0061] Rotation data is a set of parameters characterizing the properties of rotational operation. Among them, rotation angle refers to the angular displacement of the driver display screen from its initial position around the rotation axis; rotation speed refers to the rate of change of the rotation angle of the driver display screen with respect to time; and rotation torque refers to the torque applied by the driver to the driver display screen to make it rotate.
[0062] In some embodiments, the control device 102 simultaneously monitors two input channels from the driver display screen: a touch input channel and a rotation input channel; When the control device 102 detects only a valid input in the rotation input channel and not a valid input in the touch input channel within a certain sampling period, the control device 102 determines the target turning angle of the wheel based on the rotation data, generates a rotation steering control command, and sends it to the steering actuator to drive the wheel to perform the corresponding steering.
[0063] When the control device 102 detects that both input channels have valid inputs within a certain sampling period, such as when the driver holds the driving display screen and rotates it while accidentally touching the touch area on the driving display screen interface, the control device 102, according to the preset priority rules, prioritizes the rotation input channel as the valid input source and blocks the input data of the touch input channel in the current sampling period and subsequent continuous sampling periods.
[0064] In some embodiments, when the control device 102 generates a steering control command based on the rotation data and sends it to the steering actuator, the control device 102 sends a shielding signal to the driver display screen 101, causing the touch panel of the driver display screen 101 to suspend responding to touch operations during the execution of the steering control command. The touch area on the operating interface can also provide feedback to the driver through visual cues (such as a semi-transparent mask or color change) that the current touch function has been temporarily disabled.
[0065] In other embodiments, the priority rule can also be configured as a dynamic priority mode, in which the control device determines the priority weights of the turn steering control command and the touch steering control command based on the current driving scenario.
[0066] In this embodiment, when the steering actuator is controlled to perform steering according to the steering control command, the touch steering control command is not responded to. When the driver performs the steering operation, both hands are on both sides of the display screen, and the fingers inevitably come into contact with the edge or surface of the screen. Since the steering operation involves limb movement and continuous torque application, its probability of accidental touch is much lower than that of touch operation. If the touch input is still responded to normally at this time, the contact friction between the fingers and the screen is used as the touch command, which may cause the steering intention to be superimposed or interfered with. Moreover, in high-pressure conditions such as emergency avoidance, the driver usually uses the method of quickly turning both hands to input large steering. If the system detects the touch input at the same time and causes an error or delayed response, it effectively avoids the risk of accidental touch affecting the driving safety of the vehicle.
[0067] Figure 5 This is the fifth schematic diagram of the structure of the steering wheel-less driving operating system for an intelligent cockpit provided in some embodiments of this application. Figure 5 As shown, in some embodiments of this application, the steering actuator 103 includes a steering motor 108, a rack and pinion steering gear 109, and a wheel assembly 110; The control device 102 is also configured to: Send a steering control command to the steering motor 108 to cause the steering motor 108 to output torque; The torque is amplified by the rack and pinion steering gear 109 to drive the wheel assembly 110 to rotate to the target steering angle.
[0068] The steering motor 108 is a torque output component in the steering actuator 103, used to receive steering control commands and generate torque.
[0069] The rack and pinion steering gear 109 is used to convert and amplify the torque output of the steering motor 108 and output it to the wheel assembly. The wheel assembly 110 may include components such as a steering knuckle, wheel hub bearing, wheel, and tire. For example, the rack and pinion steering gear 109 may consist of a gear and a rack. The gear is connected to the output shaft of the steering motor 108, and the rack is connected to the steering tie rod in the wheel assembly. Through gear meshing, the high-speed, low-torque rotation of the steering motor 108 is converted into the low-speed, high-torque linear motion of the rack, thereby realizing the conversion of motion mode and the amplification of torque.
[0070] The steering motor 108, rack and pinion steering gear 109, and wheel assembly 110 are each independently configured and can be replaced and repaired individually without complete disassembly, reducing the maintenance cost of the steering actuator. The wheel assembly, as the final steering actuator module, can be adapted to different vehicle models through platform-based configuration.
[0071] Figure 6 This is the sixth schematic diagram of the structure of the intelligent cockpit's steering wheel-less driving operating system provided in some embodiments of this application. Figure 6 As shown, the steering wheel-less driving operating system of the smart cockpit includes: The driver display screen is configured to receive steering input operations from the driver; the steering input operations include touch operations on the driver display screen's operating interface, and / or steering input operations include rotation operations on the driver display screen body, wherein the driver display screen is rotatable relative to the vehicle body to support the rotation operations. The control unit is configured to generate steering control commands based on steering input operations; The steering actuator is configured to control the vehicle steering according to steering control commands; Angle sensor, connected to the driver display screen, is used to detect the rotation angle and rotation speed of the driver display screen; A torque sensor, connected to the driver display screen, is used to detect the rotational torque of the driver display screen; Among them, rotation angle, rotation speed, and rotation torque are used to characterize rotation operation; A road feel feedback device, connected to the driver display screen, is used to output a return torque to the driver display screen to provide road feel feedback; The control device is also configured to determine the return torque based on the steering resistance information during vehicle steering and to control the output of the road feel feedback device. Telescopic adjustment device, used to adjust the spatial position of the driver display screen; The control unit is also configured to control the telescopic adjustment device according to the driving mode so that the spatial position of the driver display screen matches the driving mode; The driving modes include autonomous driving mode and manual driving mode; in autonomous driving mode, the driving display screen is in the retracted position; in manual driving mode, the driving display screen is in the extended position. The steering actuator includes a steering motor, a rack and pinion steering gear, and wheel assemblies; The control device is also configured as follows: Send steering control commands to the steering motor to make the steering motor output torque; The torque is amplified by a rack and pinion steering system to drive the wheel assembly to the target steering angle.
[0072] The steering wheel-less driving operation method for an intelligent cockpit provided in this application embodiment can be executed by an electronic device or a functional module or entity within an electronic device capable of implementing the steering wheel-less driving operation method. The electronic devices mentioned in this application embodiment include, but are not limited to, vehicle control units (VCUs) and electronic control units (ECUs), where the vehicle can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. The steering wheel-less driving operation method for an intelligent cockpit provided in this application embodiment will be described below using an electronic device as the execution subject as an example.
[0073] Figure 7 This is one of the flowcharts illustrating a steering wheel-less driving operation method for an intelligent cockpit provided in some embodiments of this application. For example... Figure 7 As shown, the steering wheel-less driving operation method of the smart cockpit includes steps 710, 720 and 730.
[0074] Step 710: Receive the driver's steering input operation through the driver display screen; the steering input operation includes touch operation on the driver display screen interface, and / or the steering input operation includes rotation operation on the driver display screen body.
[0075] Steering input operations include touch operations on the driver display screen interface and / or rotation operations on the driver display screen itself; in other words, steering input operations can be touch operations, rotation operations, or a combination of touch operations and rotation operations.
[0076] Touch operation refers to the contact input behavior of the driver's finger or stylus on the operating interface of the driver display screen, including but not limited to clicking, pressing, swiping, and dragging. The driver display screen can support touch recognition by covering the surface with a capacitive touch sensing layer; it can also use pressure-sensitive touch technology, which is not specifically limited in this embodiment.
[0077] Rotation operation refers to the physical action of the driver rotating the display screen and applying torque to make it rotate around the mounting axis; rotation operation is directly applied to the display screen, and its action (holding with both hands, rotation angle, etc.) is usually consistent with the corresponding method of traditional mechanical steering wheel.
[0078] Step 720: Generate steering control commands based on the steering input operation.
[0079] For example, to generate steering control commands based on steering input operations, one can use a vehicle dynamics model, combined with steering input operations and vehicle operation data, to solve for the front wheel steering angle sequence and generate steering control commands; or one can use a PID control algorithm to determine the steering control commands by using the deviation between the target steering wheel angle (which can be determined based on steering input operations) and the actual steering wheel angle (which can be obtained through wheel angular displacement sensors) as input.
[0080] Step 730: Control the vehicle steering through the steering actuator according to the steering control command.
[0081] The vehicle's steering is controlled by sending control commands to the steering actuator. In some embodiments, the execution result of the vehicle steering can be further determined based on the feedback signal from the steering actuator, and the steering control commands can be updated based on the execution result to achieve feedback control of the vehicle steering.
[0082] The steering wheel-less driving operation method for a smart cockpit provided in this application receives touch operations on the operating interface of the driving display screen or rotation operations on the driving display screen itself through the driving display screen. It realizes the acquisition of the driver's steering intention through dual-layer redundant input. Even in the event of a single input path failure, the system can still continuously acquire steering input operations to maintain the vehicle's steering ability, thereby improving the safety of steering control. After processing the steering input operation, a steering control command is sent to the steering actuator to drive the wheels to turn. This realizes driving operation through the driving display screen. Compared with the method of controlling vehicle steering by combining the display screen and the steering wheel in related technologies, using the driving display screen to replace the steering wheel and realize the steering wheel function can eliminate the steering wheel and related hardware components. Moreover, the driving display screen can use existing instrument display screens or other display screens, which effectively reduces the hardware cost of the vehicle.
[0083] In some embodiments of this application, the steering control commands include touch steering control commands and rotary steering control commands; Based on the steering input, steering control commands are generated, including: If the steering input operation is a rotation operation, the target turning angle of the wheel is determined based on the rotation data corresponding to the rotation operation, and a rotation steering control command is generated based on the target turning angle; If the steering input is a touch operation, the target turning angle of the wheel is determined based on the touch data corresponding to the touch operation, and a touch steering control command is generated based on the target turning angle.
[0084] Touch-based steering control commands are steering control commands triggered by touch operations; their generation depends on touch data. Rotational steering control commands are steering control commands triggered by rotation operations; their generation depends on rotational data.
[0085] In some embodiments, the rotation data includes at least one of rotation angle, rotation speed, and rotation torque; Touch data includes at least one of touch position, touch displacement, and touch direction.
[0086] Rotation data is a set of parameters characterizing the properties of rotational operation. Among them, rotation angle refers to the angular displacement of the driver display screen from its initial position around the rotation axis; rotation speed refers to the rate of change of the rotation angle of the driver display screen with respect to time; and rotation torque refers to the torque applied by the driver to the driver display screen to make it rotate.
[0087] Touch data is a set of parameters characterizing the features of touch operations. Touch data includes at least one of the following: touch position (two-dimensional coordinates of the touch screen), touch displacement (distance slid across the screen), and touch direction (vector direction of the swipe).
[0088] Categorizing steering control commands by input method allows for differentiated processing strategies for different types of inputs. For example, touch steering control commands are often susceptible to fingertip tremors caused by road vibrations and vehicle bumps, so they can be configured with higher position resolution or smoother filtering compared to rotary steering commands. Rotary steering control commands, on the other hand, involve driver limb movements and are more sensitive to latency, so they can be configured with faster response speeds or more direct torque feedback compared to touch steering commands.
[0089] In some embodiments, two independent instruction output channels are set up to transmit touch steering control instructions and rotary steering control instructions respectively; alternatively, a type identification code can be added when generating steering control instructions to distinguish between touch steering control instructions and rotary steering control instructions through instruction encoding.
[0090] The target rotation angle of the wheel is determined based on the rotation data corresponding to the rotation operation. For example, a linear mapping relationship between the rotation angle and the target rotation angle can be established, or a non-linear mapping relationship between the rotation angle and the target rotation angle can be established. Fine adjustments are then made in conjunction with the rotation speed and rotation torque.
[0091] The target steering angle of the wheel can be determined based on the touch data corresponding to the touch operation. This can be achieved by setting a touch slider in the driver display screen and mapping the target steering angle according to the progress of the slider; or by displaying a circular virtual steering wheel graphic in the center of the driver display screen and mapping the target steering angle based on the circumferential sliding arc length.
[0092] The steering wheel-less driving operation method for intelligent cockpits provided in this application converts the driver's operating intention into an executable wheel turning angle target by adopting a differentiated data mapping strategy according to different input methods (rotation or touch). The target turning angle is independently mapped by rotation data and touch data respectively, avoiding the mismatch defects caused by unified processing. The independent generation paths of touch steering control commands and rotation steering control commands constitute dual redundancy reception of steering input operations. When a single path fails, the other path can still independently maintain steering control capability, thereby improving the safety of steering wheel-less driving operation.
[0093] In some embodiments of this application, the rotation steering control command has a higher priority than the touch steering control command; the method further includes: When the steering actuator is controlled to perform steering according to the steering control command, the touch steering control command is not responded to.
[0094] In this embodiment, when the driver simultaneously or nearly simultaneously inputs steering intentions via touch and rotation, rotation is prioritized as the basis for instruction generation. It is understood that when a driver performs a rotation operation, both hands grip the sides of the display screen, and fingers inevitably touch the screen edges or surface. Since rotation involves limb movement and the application of continuous torque, its probability of accidental touch is far lower than that of touch operation. If touch input is still responded to normally at this time, treating the friction between the fingers and the screen as a touch instruction, the steering intention may be superimposed or interfered with. Furthermore, in high-pressure situations such as emergency avoidance, drivers typically input large steering inputs by rapidly rotating both hands. If the system detects touch input simultaneously and causes errors or delays in response, it will directly affect the vehicle's driving safety.
[0095] When the vehicle is steered by the steering actuator, the touch operation is not responded to. This achieves active shielding of touch input during the continuous rotation control, forming an interlock protection and avoiding sudden changes in steering commands caused by frequent input switching, which could lead to vehicle instability.
[0096] The steering wheel-less driving operation method for the smart cockpit provided in this application embodiment prioritizes generating steering control commands based on rotation operations when steering input operations include touch operations and rotation operations. When the vehicle is steered by the steering actuator based on the rotation steering control commands, the touch operation is not responded to. Through clear priority levels and continuous state locking, unexpected touch interference is effectively filtered out, reducing the risk of accidents caused by unexpected steering and improving vehicle driving safety.
[0097] In some embodiments of this application, the steering actuator includes a steering motor, a rack and pinion steering gear, and a wheel assembly; Controlling vehicle steering via a steering actuator according to the steering control command includes: Send steering control commands to the steering motor to make the steering motor output torque; The torque is amplified by a rack and pinion steering system to drive the wheel assembly to the target steering angle.
[0098] The steering motor is a torque output component in the steering actuator, used to receive steering control commands and generate torque.
[0099] A rack and pinion steering gear is used to convert and amplify the torque output of a steering motor to the wheel assembly. The wheel assembly may include components such as a steering knuckle, wheel hub bearings, wheels, and tires. For example, a rack and pinion steering gear may consist of a gear and a rack. The gear is connected to the output shaft of the steering motor, and the rack is connected to the steering tie rod in the wheel assembly. Through gear meshing, the high-speed, low-torque rotation of the motor is converted into low-speed, high-torque linear motion of the rack, simultaneously achieving the conversion of motion mode and the amplification of torque.
[0100] The steering motor, rack and pinion steering gear, and wheel assembly are each independently configured and can be replaced and repaired individually without complete disassembly, reducing the maintenance cost of the steering actuator. The wheel assembly, as the final steering module, can be platform-based to adapt to different vehicle models.
[0101] The steering wheel-less driving operation method for the intelligent cockpit provided in this application embodiment transforms steering control commands into actual vehicle steering actions through a three-level structure of steering motor, rack and pinion steering gear, and wheel assembly, realizing a closed loop from steering input operation to vehicle steering. The three-level independent structure of steering motor, rack and pinion steering gear, and wheel assembly enables the steering actuator to have platform-based expansion capabilities. It can be adapted to different vehicle models by changing the motor power level or adjusting the transmission ratio, thereby reducing the development cost of the steering actuator.
[0102] In some embodiments of this application, the method further includes: Determine the vehicle's driving mode; If the driving mode is automatic driving mode, control the driving display to return to the retracted position; If the driving mode is manual driving mode, switch the control display screen to the extended position to support rotation operation.
[0103] In some embodiments, the driving mode of the vehicle is determined based on the mode switch status of the driving mode. For example, the driver can operate the mode switching switch (knob or lever) to actively select the automatic driving mode or the manual driving mode; or the driving mode of the vehicle can be determined by comprehensively judging the readiness status of the automatic driving system, the driver's status, the vehicle's driving status, and other conditions.
[0104] In some embodiments, the driver display screen is fully or partially retracted into the vehicle body in the retracted position. For example, in the retracted position, the driver display screen can be retracted to a position close to the dashboard surface, or it can be completely retracted into a hidden cavity inside the dashboard. The retracted position is suitable for autonomous driving mode and provides more space support for the driver compared to a traditional mechanical steering wheel.
[0105] In some embodiments, the extended position of the driver display screen creates a gap between it and the vehicle body, allowing the driver to perform touch or rotation operations. It is understood that rotation requires the driver to grip the display screen and apply torque; if the display screen is in the retracted position close to the dashboard, it is difficult for the driver to grip, and the rotation torque is interfered with by the vehicle body.
[0106] The steering wheel-less driving operation method for the smart cockpit provided in this application embodiment controls the driving display screen to switch between a retracted position and an extended position according to the vehicle's driving mode. In the retracted position, the driving display screen can reduce its encroachment on the front space of the cockpit, providing the driver with more physical freedom compared to a traditional mechanical steering wheel; in the extended position, the driving display screen allows the driver to perform touch operations or rotation operations, providing a hardware foundation for steering wheel-less driving operation.
[0107] In some embodiments of this application, the method further includes: In autonomous driving mode, in response to the command to raise the display, the driver display is switched to the extended position; If the rotation data meets the mode switching conditions, the driving mode will be switched to manual driving mode.
[0108] Understandably, the command to raise the display screen can be triggered by the driver's active operation mode switch, or it can be triggered automatically based on other conditions. For example, when the vehicle is in autonomous driving mode and the driver's display screen is in the retracted position, if the driver intends to take over driving at any time or needs to familiarize themselves with the road conditions in advance, they can send a command to raise the display screen to the control device through any of the following methods: voice command, touch the virtual button on the central control display screen of the smart cockpit, or press the physical wake-up button near the driver's display screen.
[0109] When the driver display screen is in the extended position, it supports the driver's rotation and touch operations. It can be assumed that the driver's intention to intervene is implied when the display screen is switched to the extended position. In this case, the rotation data is obtained and combined with the mode switching condition judgment to realize the progressive dual verification of mode switching, avoiding unexpected takeover caused by accidental touch or system misjudgment.
[0110] In some embodiments, the mode switching conditions include amplitude conditions and / or duration conditions for the rotation data. It is understood that the amplitude of the rotation data reflects the force or magnitude of the driver's rotation operation, and setting an amplitude threshold can effectively filter out unintentional accidental touches; while the duration of the rotation data reflects the continuity of the driver's rotation operation, effectively filtering out instantaneous high-amplitude rotations caused by accidental collisions or vibrations.
[0111] The steering wheel-less driving operation method for the intelligent cockpit provided in this application embodiment achieves effective differentiation between the driver's intention to actively intervene and unintentional accidental touches through a dual-condition design that uses the extended position of the display screen as a trigger premise and the mode switching condition as a judgment basis. This avoids unexpected switching to manual driving mode due to accidental touches or system misjudgment. The takeover is triggered only when the driver's intervention is accurately determined, thus achieving a safe handover of human-machine control between manual driving mode and autonomous driving mode.
[0112] In some embodiments of this application, the method further includes: Acquire steering resistance information during vehicle steering and determine road feel feedback torque based on steering resistance information; Provide road feedback to the driver based on the road feedback torque.
[0113] Steering resistance information is used to quantify the road reaction force experienced by the steering wheels during vehicle steering. Specifically, it can be the resistance encountered by the steering actuator when driving the wheels, such as the lateral friction between the tires and the road surface, or the deformation resistance of the suspension system's elastic elements. Steering resistance information is typically obtained indirectly from steering motor current, torque sensors, or dedicated resistance sensors.
[0114] Road feedback torque refers to the torque output to the driver's display screen, used to provide road feedback to the driver. Road feedback torque includes at least rotational feedback torque and self-centering torque. Specifically, road feedback torque includes, but is not limited to: self-centering torque during the driver's display screen's return to center after the vehicle has traveled straight or turned; vibration feedback torque caused by road surface unevenness during active steering by the driver; and drag feedback torque caused by changes in tire lateral force.
[0115] Among them, the rotation feedback torque refers to the torque feedback output reflecting the road conditions when the driver rotates the driving display screen; the return torque is the reverse torque output to the driving display screen, which is opposite to the direction of the driver's rotation and is used to restore the driving display screen to the centered position.
[0116] The return torque is the reverse torque output to the driver's display screen, and its direction is opposite to the driver's steering direction. For example, a road feel feedback device can be installed at the pivot point on the back of the driver's display screen. Using the return torque as the command value and the steering torque applied by the driver as the feedback value, a torque closed-loop control system can be formed. When the driver does not apply torque, the road feel motor outputs the return torque, causing the driver's display screen to automatically return to center. When the driver applies torque, the system detects the difference between the hand torque and the return torque, and adjusts the output of the road feel feedback device to maintain balance.
[0117] The steering wheel-less driving operation method of the intelligent cockpit provided in this application determines the return torque based on the steering resistance information during the vehicle's steering process and outputs the return torque to the driver's display screen; it realizes the real-time correlation between road feel feedback and steering resistance information, and enables the driver to perceive key information such as road surface adhesion and vehicle dynamics through responsive torque output, making up for the perception defects of purely visual or auditory information, and providing tactile dimension data for the driver's decision-making and operation, which helps to improve the safety of steering wheel-less driving operation.
[0118] In some embodiments of this application, the method further includes: The virtual form and functional layout of the driving display screen's operating interface are determined based on at least one of the vehicle's driving mode, driving data, and user preference data.
[0119] Driving modes characterize the vehicle's operating state, including autonomous driving mode and manual driving mode. Driving data refers to the set of parameters collected during vehicle operation, including but not limited to vehicle speed, acceleration, yaw rate, lateral acceleration, road curvature, and road surface adhesion coefficient. User preference data specifically reflects personalized selections accumulated by the driver through system settings or long-term usage behavior, such as interface style, function order, operational sensitivity, and force feedback intensity.
[0120] Understandably, unlike the fixed form of a traditional physical steering wheel, the driver display screen interface, as a virtual control area rendered by software, can have its display content and layout dynamically defined and adjusted by software.
[0121] For example, the virtual form and functional layout of the operating interface can be determined according to the vehicle's driving mode. In autonomous driving mode, steering control elements can be weakened or hidden, and the virtual form can be switched to a simplified instrument panel or a full-screen information display to match the characteristics of autonomous driving mode where the driver does not need to continuously operate the steering wheel. Alternatively, in manual driving mode, steering control elements can be highlighted on the driver display screen operating interface, and the virtual form can be switched to a round steering wheel by default to match the characteristics of manual driving mode where the driver needs to directly operate the steering wheel.
[0122] In some embodiments, a lookup table based on virtual form and functional layout determines the virtual form and functional layout of the driving display screen interface based on at least one of driving data and user preference data. For example, vehicle speed range and road curvature level can be used as indexes to query corresponding interface configuration parameters; alternatively, a real-time optimization algorithm can be run, using current driving data as input, to dynamically determine the optimal interface configuration.
[0123] The driver display screen can virtually show a steering wheel in various shapes, such as round, rectangular, gamepad-style, or single / dual joysticks, to meet optimized control needs in different scenarios. The interface also allows for customization of function buttons and the overall user experience. Understandingly, user preference data reflects the driver's historical operating characteristics, such as steering sensitivity selection, the ratio of touch to rotation usage, and the frequency of access to frequently used functions. Based on this user preference data, the interface configuration can be automatically optimized. For example, for aggressive drivers, the center dead zone of a round steering wheel can be reduced and edge gain increased; for conservative drivers, the damping of the virtual steering wheel can be increased and the response speed reduced.
[0124] The steering wheel-less driving operation method for intelligent cockpits provided in this application embodiment achieves real-time configurability of the virtual form and functional layout of the interface through the dynamic fusion of three types of inputs: driving mode, driving data, and user preference data. The introduction of driving mode and driving data improves the matching degree between interface configuration and vehicle operating status, while user preference data enables the operation interface to adapt to individual differences of drivers, improving the adaptability of the steering wheel-less driving operation method for intelligent cockpits to different driving scenarios and different drivers, and realizing personalized customization of the driving display screen operation interface.
[0125] Figure 8 This is a second schematic flowchart of a steering wheel-less driving operation method for an intelligent cockpit provided in some embodiments of this application. For example... Figure 8 As shown, the steering wheel-less driving operation method of the smart cockpit also includes: After the vehicle is powered on, determine the vehicle's driving mode; If it is in autonomous driving mode, it will enter autonomous driving mode and the driver display screen will be in the retracted position. In autonomous driving mode, determine whether the driver display screen has switched to the extended position; if not, continue autonomous driving and return to the driving mode for judgment. If so, the driver display screen is switched to the extended position, and the driver intervention is determined based on the rotation data of the driver display screen; if the driver does not intervene, the automatic driving continues, and the system returns to the driving mode for further judgment. If the driver intervenes, the system returns to the driving mode for further assessment. If the system is determined to be in manual driving mode, the driver display screen will be switched to the extended position. Determine the type of steering input operation; if the steering input operation is a touch operation, then execute the touch operation steering control; If the steering input is a turn operation, then the turn operation steering control is executed; The vehicle is steered by the steering actuator and then returned to the driving mode for judgment.
[0126] Figure 9 These are schematic diagrams of the structure of an electronic device provided in some embodiments of this application. In some embodiments, such as Figure 9 As shown, this application embodiment also provides an electronic device 900, including a processor 901, a memory 902, and a computer program stored in the memory 902 and executable on the processor 901. When the program is executed by the processor 901, it implements the various processes of the above-described intelligent cockpit steering wheel-less driving operation method embodiment and can achieve the same technical effect. To avoid repetition, it will not be described again here.
[0127] It should be noted that the electronic devices in the embodiments of this application include the aforementioned mobile electronic devices and non-mobile electronic devices.
[0128] This application also provides a vehicle that includes the steering wheel-less driving operating system of the intelligent cockpit described above.
[0129] This application also provides a non-transitory computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements the various processes of the above-described intelligent cockpit steering wheel-less driving operation method embodiment and achieves the same technical effect. To avoid repetition, it will not be described again here.
[0130] The processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.
[0131] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the above-described intelligent cockpit steering wheel-less driving operation method.
[0132] The processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.
[0133] This application also provides a chip, which includes a processor and a communication interface. The communication interface and the processor are coupled. The processor is used to run programs or instructions to implement the various processes of the above-described intelligent cockpit steering wheel-less driving operation method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be described again here.
[0134] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.
[0135] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0136] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the related technology, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of this application.
[0137] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
[0138] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0139] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.
Claims
1. A steering wheel-less driving operating system for an intelligent cockpit, characterized in that, include: The driver display screen is configured to receive steering input from the driver. The steering input operation includes a touch operation on the driver display screen interface, and / or the steering input operation includes a rotation operation on the driver display screen body, wherein the driver display screen can rotate relative to the vehicle body to support the rotation operation; The control device is configured to generate steering control commands based on the steering input operation; The steering actuator is configured to control the vehicle steering according to the steering control command; An angle sensor, connected to the driver display screen, is used to detect the rotation angle of the driver display screen; A torque sensor, connected to the driver display screen, is used to detect the rotational torque of the driver display screen; The rotation angle and the rotation torque are used to characterize the rotation operation.
2. The system according to claim 1, characterized in that, The system also includes: A road feel feedback device, connected to the driver display screen, is used to output a road feel feedback torque to the driver display screen. The road feel feedback torque includes at least a rotational feedback torque and a return torque to provide road feel feedback. The control device is also configured to determine the road feel feedback torque based on the steering resistance information during vehicle steering, and to control the output of the road feel feedback device.
3. The system according to claim 1 or 2, characterized in that, The system also includes: A telescopic adjustment device is used to adjust the spatial position of the driver display screen; The control device is also configured to control the telescopic adjustment device according to the driving mode, so that the spatial position of the driving display screen matches the driving mode; The driving modes include an automatic driving mode and a manual driving mode; in the automatic driving mode, the driving display screen is in the retracted position; in the manual driving mode, the driving display screen is in the extended position.
4. The system according to claim 3, characterized in that, The control device is also configured to: In the autonomous driving mode, in response to a command to raise the display screen, the telescopic adjustment device is controlled to switch the driving display screen to the extended position. Obtain the rotation data of the driving display screen; If the rotation data meets the mode switching conditions, the driving mode is switched to manual driving mode.
5. The system according to claim 1, characterized in that, The steering control command includes a touch steering control command generated based on the touch operation, and a rotation steering control command generated based on the rotation operation; the rotation steering control command has a higher priority than the touch steering control command. The control device is also configured to: When the steering actuator is controlled to perform steering according to the steering control command, the touch steering control command is not responded to.
6. A vehicle, characterized in that, The system includes a steering wheel-less driving operating system for a smart cockpit as described in any one of claims 1 to 5.
7. A method for steering wheel-less driving operation in an intelligent cockpit, characterized in that, A steering wheel-less driving operating system applied to an intelligent cockpit as described in any one of claims 1 to 5, comprising: The driver's steering input is received through the driver display screen; the steering input includes touch operation on the driver display screen interface, and / or the steering input includes rotation operation on the driver display screen body. Based on the steering input operation, a steering control command is generated; The vehicle is steered according to the steering control command via the steering actuator.
8. The method according to claim 7, characterized in that, The steering control commands include touch steering control commands and rotary steering control commands; The step of generating steering control commands based on the steering input operation includes: If the steering input operation is a rotation operation, the target turning angle of the wheel is determined based on the rotation data corresponding to the rotation operation, and the rotation steering control command is generated based on the target turning angle; If the steering input operation is a touch operation, the target turning angle of the wheel is determined according to the touch data corresponding to the touch operation, and the touch steering control command is generated according to the target turning angle; The rotation data includes at least one of rotation angle, rotation speed, and rotation torque; the touch data includes at least one of touch position, touch displacement, and touch direction.
9. The method according to claim 8, characterized in that, The rotation steering control command has a higher priority than the touch steering control command; the method further includes: When the steering actuator is controlled to perform steering according to the steering control command, the touch steering control command is not responded to.
10. The method according to claim 7, characterized in that, The steering actuator includes a steering motor, a rack and pinion steering gear, and a wheel assembly; The step of controlling the vehicle steering via the steering actuator according to the steering control command includes: Send the steering control command to the steering motor to cause the steering motor to output torque; The torque is amplified by the rack and pinion steering mechanism to drive the wheel assembly to rotate to the target steering angle.
11. The method according to claim 7, characterized in that, The method further includes: Determine the driving mode of the vehicle; If the driving mode is automatic driving mode, control the driving display screen to switch to the retracted position; If the driving mode is manual driving mode, control the driving display screen to switch to the extended position to support the rotation operation.
12. The method according to claim 11, characterized in that, The method further includes: In the autonomous driving mode, in response to a display screen rise command, the driving display screen is switched to the extended position; Obtain the rotation data of the driving display screen; If the rotation data meets the mode switching conditions, the driving mode is switched to manual driving mode.
13. The method according to claim 7, characterized in that, The method further includes: Obtain steering resistance information during vehicle steering, and determine road feel feedback torque based on the steering resistance information; The road feedback torque is used to provide road feedback to the driver.
14. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the steering wheel-less driving operation method of the intelligent cockpit as described in any one of claims 7 to 13.