Vehicle seat adjusting method, vehicle seat adjusting device and vehicle

Abstract

The invention relates to a vehicle seat adjusting method, a vehicle seat adjusting device and a vehicle, and the vehicle seat adjusting method comprises the steps that according to road information, camber information of a running vehicle during turning in a future preset time period is determined; determining a reference height difference of a vehicle seat of the running vehicle according to the camber information; and the absolute value of the difference value between the current height difference of the vehicle seat and the reference height difference is controlled to be kept within the preset difference value range. The vehicle turning prediction is realized based on the road information, and the seat adjustment is executed in advance according to the turning camber information of the vehicle when the vehicle is predicted to turn, so that the delay of the height difference adjustment of the vehicle seat is reduced, and the false triggering of the seat adjustment under the straight lane change is avoided.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and in particular to a vehicle seat adjustment method, a vehicle seat adjustment device and a vehicle. Background Art

[0002] In the vehicle structure, the vehicle seat is often rigidly connected to the entire vehicle. When the vehicle turns, it is often the friction between the occupant and the seat cushion that provides the centripetal force to support the occupant in circular motion. Therefore, currently when the vehicle turns, the occupant's riding experience is poor.

[0003] In order to improve the riding experience of passengers, relevant technologies often focus on improving the seat structure. By creating a height difference between the left and right sides of the seat, the seat can provide an additional lateral force for the passengers, which is used to provide the centripetal force for the human body to make circular motion when the vehicle turns, thereby improving riding comfort. Since the adjustment of the seat height difference often involves sensor measurement, data calculation, and information processing during actual driving, the adjustment action for the seat height difference often has a lag; in addition, the triggering method of the seat adjustment is also strongly related to the steering wheel rotation angle. Therefore, when the vehicle changes lanes on a straight road, the seat adjustment is also easily triggered frequently, affecting the passenger experience.

[0004] With respect to the problems of seat adjustment delay and frequent false triggering in related technologies, no effective solution has been proposed so far. Summary of the invention

[0005] In this embodiment, a vehicle seat adjustment method, a vehicle seat adjustment device and a vehicle are provided to solve the problems of seat adjustment delay and frequent false triggering in the related art.

[0006] In a first aspect, a vehicle seat adjustment method is provided in this embodiment, comprising:

[0007] Determine, based on the road information, the curvature information of the vehicle when turning within a preset time period in the future;

[0008] Determine a reference height difference of a vehicle seat of the moving vehicle according to the curvature information; wherein the reference height difference is a height difference between left and right sides of the same vehicle seat;

[0009] The current height difference of the vehicle seat is controlled so that the absolute value of the difference between the current height difference and the reference height difference is maintained within a preset difference range.

[0010] In some of the embodiments, before determining, based on the road information, the curvature information of the traveling vehicle when turning within a preset time period in the future, the method further includes:

[0011] Determine whether navigation information of the traveling vehicle is read; if the navigation information is read, predict whether the traveling vehicle will turn in a future period based on the navigation information; the navigation information includes road information of the traveling vehicle.

[0012] In some of the embodiments, if the navigation information is not read, the method further includes:

[0013] The road information is acquired according to the turn signal of the moving vehicle and the image information collected by the forward-looking camera device of the moving vehicle, and based on the road information, it is predicted whether the moving vehicle will turn in a future period of time.

[0014] In some embodiments, determining a reference height difference of a vehicle seat of the moving vehicle according to the curvature information includes:

[0015] The reference height difference is determined based on the curvature information and the pre-established mathematical relationship between the curvature information and the height difference between the left and right sides of the vehicle seat; the mathematical relationship is constructed based on the relationship between the centripetal force of the passenger when the vehicle turns and the curvature information, and the relationship between the lateral force provided by the vehicle seat and the height difference between the two sides of the vehicle seat.

[0016] In some embodiments, controlling the current height difference of the vehicle seat to maintain the absolute value of the difference between the current height difference and the reference height difference within a preset difference range includes:

[0017] Real-time acquisition of measurement values ​​corresponding to the height sensors on the left and right sides of the vehicle seat;

[0018] determining a current height difference of the vehicle seat based on the measured value;

[0019] Determine whether the absolute value of the difference between the current height difference and the reference height difference is within the difference range; if not, control the seat adjustment mechanism to adjust the current height difference until the absolute value of the difference between the current height difference and the reference height difference after adjustment is within the difference range.

[0020] In some embodiments, controlling the seat adjustment mechanism to adjust the current height difference until the absolute value of the difference between the adjusted current height difference and the reference height difference is within the difference range includes:

[0021] The seat adjustment motor is controlled to rotate to adjust the current height difference until the absolute value of the difference between the current height difference and the reference height difference is within the difference range.

[0022] In some embodiments, controlling the seat adjustment motor to rotate to adjust the current height difference until the absolute value of the difference between the current height difference and the reference height difference is within the difference range includes:

[0023] In a case where the current height difference is higher than the reference height difference, controlling the seat adjustment motor to rotate forward to adjust the current height difference until the absolute value of the difference between the current height difference and the reference height difference is within the difference range;

[0024] In a case where the current height difference is lower than the reference height difference, the seat adjustment motor is controlled to rotate in the reverse direction to adjust the current height difference until the absolute value of the difference between the current height difference and the reference height difference is within the difference range.

[0025] In a second aspect, a vehicle seat adjustment device is provided in this embodiment, including: a prediction module, a calculation module and an adjustment module; wherein:

[0026] The prediction module is used to determine the curvature information of the traveling vehicle when it turns within a preset time period in the future according to the road information;

[0027] The calculation module is used to determine a reference height difference of a vehicle seat of the moving vehicle according to the curvature information; wherein the reference height difference is a height difference between left and right sides of the same vehicle seat;

[0028] The adjustment module is used to control the current height difference of the vehicle seat so that the absolute value of the difference between the current height difference and the reference height difference remains within a preset difference range.

[0029] In a third aspect, a vehicle is provided in this embodiment, including a seat height sensor, a vehicle seat adjustment mechanism, and a control system:

[0030] The seat height sensor is used to measure the height values ​​of the left and right sides of the vehicle seat;

[0031] The vehicle seat adjustment mechanism is used to adjust the height difference between the left and right sides of the vehicle seat;

[0032] The control system is used to execute the vehicle seat adjustment method described in the first aspect above.

[0033] In some embodiments, the vehicle seat adjustment mechanism includes:

[0034] Fixed support seat, bearing mounting seat, bearing, transmission support shaft, motion support seat, transmission gear, drive motor, limit pin and height sensor; wherein,

[0035] The fixed support seat is connected to the body of the vehicle, and the drive motor is installed on the fixed support seat;

[0036] The driving end of the driving motor is connected to the gear teeth on the outer periphery of the transmission gear;

[0037] The transmission support shaft connects the transmission gear and the motion support seat; the bearing supports the transmission support shaft;

[0038] The motion support seat is connected to the vehicle seat, and the height sensor is arranged on the motion support seat;

[0039] The bearing is installed in the bearing mounting seat; the bearing mounting seat and the fixed support seat are an integrated structure;

[0040] The first position of the bearing mounting seat and the second position of the motion support seat are both provided with locking holes; the first position and the second position are relative when the motion support seat is in a horizontal state; the sizes of the locking holes at the first position and the second position are matched with the limit pin; the limit pin is located at a preset retracted position in the retracted state, and is inserted into the locking holes on the bearing mounting seat and the motion support seat under the push of the trigger mechanism.

[0041] In a fourth aspect, in this embodiment, a storage medium is provided, on which a computer program is stored, and when the program is executed by a processor, the vehicle seat adjustment method described in the first aspect is implemented.

[0042] Compared with the related art, the vehicle seat adjustment method, vehicle seat adjustment device and vehicle provided in this embodiment determine the curvature information of the moving vehicle when it turns within a preset period of time in the future according to the road information; determine the reference height difference of the vehicle seat of the moving vehicle according to the curvature information; wherein the reference height difference is the height difference between the left and right sides of the same vehicle seat; control the current height difference of the vehicle seat, and keep the absolute value of the difference between the reference height difference and the current height difference within the preset difference range. It realizes the prediction of vehicle turning based on road information, and performs seat adjustment in advance according to the curvature information of the vehicle turning when it is predicted that the vehicle is about to turn, so as to reduce the delay of the vehicle seat height difference adjustment and avoid the false triggering of the seat adjustment in the straight lane change.

[0043] Details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0045] Figure 1 is a hardware structure block diagram of a terminal of the vehicle seat adjustment method of this embodiment;

[0046] Figure 2 is a flow chart of the vehicle seat adjustment method of this embodiment;

[0047] Figure 3a It is a top-down schematic diagram of a vehicle turning trajectory;

[0048] Figure 3b It is a schematic diagram of the force analysis of passengers under different vehicle seats;

[0049] Figure 4 is a schematic diagram of navigation information of this embodiment;

[0050] Figure 5 is a schematic diagram of an image captured by a forward-looking camera device of a vehicle in this embodiment;

[0051] Figure 6 It is a schematic diagram of the force analysis of passengers during the vehicle turning process;

[0052] Figure 7 is a structural schematic diagram of a seat adjustment mechanism of this embodiment;

[0053] Figure 8 is a flow chart of a vehicle seat adjustment method according to some embodiments;

[0054] Fig. 9 is a schematic diagram of a functional control switch panel for adjusting a vehicle seat in some embodiments;

[0055] Fig.10 is a structural block diagram of the vehicle seat adjustment device of this embodiment;

[0056] Fig.11 Schematic diagram of the structure of the vehicle provided in this embodiment. DETAILED DESCRIPTION

[0057] In order to more clearly understand the purpose, technical solutions and advantages of the present application, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments.

[0058] Unless otherwise defined, the technical terms or scientific terms involved in this application shall have the general meaning understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a", "the", "these" and the like in this application do not represent quantitative restrictions, and they can be singular or plural. The terms "include", "comprise", "have" and any variants thereof involved in this application are intended to cover non-exclusive inclusions; for example, a process, method and system, product or device comprising a series of steps or modules (units) is not limited to the listed steps or modules (units), but may include unlisted steps or modules (units), or may include other steps or modules (units) inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether directly or indirectly. The "multiple" involved in this application refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, "A and / or B" can mean: A exists alone, A and B exist at the same time, and B exists alone. Usually, the character " / " indicates that the objects associated with each other are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific ordering of the objects.

[0059] The method embodiment provided in this embodiment can be executed in a terminal, a computer or a similar computing device. For example, running on a terminal, Figure 1 FIG. 1 is a hardware structure diagram of a terminal of the vehicle seat adjustment method of this embodiment. Figure 1 As shown, the terminal may include one or more ( Figure 1 Only one is shown in the figure) processor 102 and memory 104 for storing data, wherein processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA. The above terminal may also include a transmission device 106 and an input and output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the above terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations shown.

[0060] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the vehicle seat adjustment method in this embodiment. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, to implement the above method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0061] The transmission device 106 is used to receive or send data via a network. The above network includes a wireless network provided by the communication provider of the terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (Radio Frequency, referred to as RF) module, which is used to communicate with the Internet wirelessly.

[0062] In this embodiment, a vehicle seat adjustment method is provided. Figure 2 is a flow chart of the vehicle seat adjustment method of this embodiment, as shown in Figure 2 As shown, the process includes the following steps:

[0063] Step S210, determining the curvature information of the traveling vehicle when turning within a preset time period in the future according to the road information.

[0064] The road information may specifically include the extension of both sides of the road, the driving direction signs corresponding to the lanes, the driving direction indicated by the roadside signs and other information. The above road information can be obtained based on the vehicle's perception system, or the above road information can be obtained based on navigation information. After obtaining the above road information, if it is determined whether the driving vehicle will turn within the preset time period in the future, the curvature information of the vehicle when turning is calculated in advance, for example, the turning angle, turning arc or turning radius can be calculated in advance. Therefore, based on this step, it is possible to predict in advance whether the vehicle needs to turn based on the detection of the road state, and to complete the calculation of the curvature information in advance. The above preset time period can be set by those skilled in the art according to the actual application scenario for the timeliness of the advance prediction of road turns, the adjustment speed of the vehicle seat adjustment mechanism, the speed of data processing and analysis by the vehicle control system, etc., and this embodiment does not make specific restrictions on this.

[0065] Step S220, determining a reference height difference of a vehicle seat of the moving vehicle according to the curvature information; wherein the reference height difference is a height difference between left and right sides of the same vehicle seat.

[0066] The condition that the reference height difference needs to satisfy is that the vehicle seat is at the reference height difference, and can provide a preset lateral force to the passenger when the moving vehicle turns with the curvature information obtained in the above step S210. A mathematical relationship between the reference height difference and the curvature information can be constructed in advance based on the force analysis of the passenger during the turning process, so that when the vehicle turns with the corresponding curvature information, the lateral force provided by the vehicle seat to the passenger based on the height difference can support the passenger to make a circular motion when the vehicle turns, so as to improve the comfort of the passenger when the vehicle turns. Figure 3a A schematic top view of a vehicle turning trajectory. Figure 3b The following is a schematic diagram of the force analysis of passengers under different vehicle seats. Figure 3a and Figure 3b , when the vehicle turns, it will follow Figure 3a When the vehicle turns, in the original seat scheme where there is no height difference between the two sides of the vehicle seat, the force that supports the occupant to perform circular motion synchronously, with the positive direction from left to right of the vehicle body, comes from the friction force f between the occupant and the seat cushion. 摩擦 At this time, the support force F provided by the vehicle seat 支撑 The seat solution with adjustable height difference on both sides of the vehicle seat used in this embodiment has a support force F provided by the vehicle seat. 支撑 The supporting force F 支撑分力 , which can provide support for passengers to perform circular motion, thus improving riding comfort. Figure 3b Where m is the mass of the passenger and g is the acceleration due to gravity.

[0067] Step S230, controlling the current height difference of the vehicle seat to keep the absolute value of the difference between the current height difference and the reference height difference within a preset difference range.

[0068] After calculating the height difference, the seat adjustment mechanism can be controlled to adjust the height difference on both sides of the vehicle seat. Specifically, the actual current height difference of the vehicle seat is first measured. If the absolute value of the difference between the current height difference and the reference height difference is within the preset difference range, there is no need to adjust the height difference of the vehicle seat; otherwise, the current height difference needs to be adjusted so that the absolute value of the difference between the current height difference and the reference height difference is within the preset difference range.

[0069] It can be understood that the reference height difference calculated in the above step S220 is a theoretical height difference of the vehicle when turning in the future period, which is obtained by theoretical calculation based on the predicted curvature information before the vehicle reaches the turning section, so that the seat adjustment mechanism can adjust the seat height difference based on the reference height difference in advance. However, when the vehicle actually drives to the turning section, the corresponding target height difference can be further determined based on the actual corresponding curvature information of the vehicle when turning, the vehicle driving speed, and the seat adjustment strength set by the user, and the vehicle seat can be adjusted based on the target height difference and the actual current height difference.

[0070] In related technologies, the seat structure is often improved by creating a height difference between the left and right sides of the seat to allow the seat to provide an additional lateral force for the occupants, which is used to provide the centripetal force for the human body to make circular motion when the vehicle turns, thereby improving riding comfort. Since the adjustment of the seat height difference often involves sensor measurement, data calculation, and information processing during actual driving, the adjustment action for the seat height difference often has a lag; in addition, the triggering method of the seat adjustment is also strongly related to the steering wheel rotation angle, so when the vehicle changes lanes on a straight road, the seat adjustment is also easily triggered frequently, affecting the occupant experience.

[0071] In this regard, based on the above steps, this embodiment realizes the height difference adjustment on both sides of the seat based on the seat adjustment mechanism, and by combining the whole vehicle intelligence, the driver's driving intention (whether to turn) is identified in advance based on road information, so as to predictively adjust the seat state, and the height difference adjustment on both sides of the vehicle seat can be completed more quickly when the vehicle turns, solving the lag in vehicle seat adjustment existing in related technologies. In addition, this embodiment is a turn prediction based on road information, which can also avoid the problem of accidental seat adjustment when changing lanes on a straight road existing in related technologies. Therefore, this embodiment can improve the user's riding experience.

[0072] In some of the embodiments, the seat adjustment mechanism itself has a compact structure and accurate control, which is conducive to vehicle loading and comfort calibration. It is also possible to set a function start switch for height difference adjustment for the vehicle seat, and equip it with multiple adjustable seat active motion amplitudes to improve the user's riding experience. In addition, it is also possible to equip it with a balance position locking mechanism, which can enable the vehicle seat to still be used as a conventional seat without height difference when the motor fails, thereby improving the safety of the seat.

[0073] Vehicle seats are one of the components with which passengers interact most frequently and are most perceived by passengers. This embodiment can provide intelligent turn prediction logic to help improve seat comfort, and has great application prospects in both private cars and commercial buses.

[0074] Through the above steps S210 to S230, the curvature information of the moving vehicle when turning within a preset time period in the future is determined according to the road information; the reference height difference of the vehicle seat of the moving vehicle is determined according to the curvature information; wherein the reference height difference is the height difference between the left and right sides of the same vehicle seat; the current height difference of the vehicle seat is controlled, and the absolute value of the difference between the current height difference and the reference height difference is kept within a preset difference range. It realizes the prediction of vehicle turning based on road information, and when it is predicted that the vehicle is about to turn, the seat adjustment is performed in advance according to the curvature information of the vehicle turning, so as to reduce the delay of the vehicle seat height difference adjustment and avoid the false triggering of the seat adjustment during the straight lane change.

[0075] In one embodiment, before determining, based on the road information, the curvature information of the moving vehicle when turning within a preset time period in the future, the vehicle seat adjustment method may further include:

[0076] Determine whether the navigation information of the moving vehicle is read; if the navigation information is read, predict whether the moving vehicle will turn in the future time period based on the navigation information; the navigation information includes the road information of the moving vehicle.

[0077] Figure 4 FIG. 1 is a schematic diagram of navigation information in this embodiment. Figure 4 As shown, the starting point of the dotted arrow is the current position of the vehicle, and the end point indicated by the arrow can be the navigation destination preset by the user. Therefore, the navigation information of the vehicle contains the road information (straight road, left turn or right turn, and corresponding curvature information) that the vehicle is currently traveling and will pass through in the future. By reading the navigation information of the vehicle, the turning section that the vehicle will pass through can be predicted in advance, and the vehicle turning can be predicted. Among them, the navigation information of the vehicle can be obtained from the vehicle navigation system, or based on the communication with the user's mobile device, the navigation information can be obtained from the navigation application of the user's mobile device. The specific method of reading the navigation information is not limited.

[0078] By acquiring navigation information, this embodiment can control the height adjustment mechanism to perform height adjustment in advance according to the road information that the vehicle will pass through in the navigation information, thereby accurately reducing the centrifugal force and avoiding delay in seat adjustment.

[0079] In particular, in one embodiment, if the navigation information is not read, the vehicle seat adjustment method may further include:

[0080] Road information is acquired based on the turn signal of the moving vehicle and the image information collected by the forward-looking camera of the moving vehicle, and based on the road information, it is predicted whether the moving vehicle will turn in a future period of time.

[0081] For example, when the user does not use the in-vehicle navigation or there is no navigation signal, it can determine whether the vehicle has a tendency to turn based on the signal of the vehicle's turn signal, and determine the curvature of the turning section based on the extension of the road lines on both sides of the road in the direction of the vehicle's travel identified by the vehicle's front-view camera equipment, so as to predict whether the vehicle will turn in the future. In addition, it can also identify roadside signs to determine in advance whether the vehicle will turn. Figure 5 Schematic diagram of the image captured by the forward-looking camera device of the vehicle in this embodiment. Figure 5 As shown, the vehicle's forward-looking camera can collect information such as road extension lines and roadside signs.

[0082] In this way, the vehicle's perception system can be used to determine whether the vehicle is turning based on the recognition of information in multiple dimensions, thereby improving the accuracy of turning prediction and avoiding misjudgment.

[0083] Additionally, in one embodiment, determining a reference height difference of a vehicle seat of a moving vehicle according to the curvature information may specifically include:

[0084] The reference height difference is determined based on the predicted curvature information combined with a pre-established mathematical relationship between the curvature information and the height difference between the left and right sides of the vehicle seat; the mathematical relationship is constructed based on the relationship between the centripetal force of the passenger when the vehicle turns and the curvature information, and the relationship between the lateral force provided by the vehicle seat and the height difference between the two sides of the vehicle seat.

[0085] Figure 6 The figure is a schematic diagram of the force analysis of passengers during vehicle turning. Figure 6 As shown, it is assumed that the positive direction of the vehicle turning is from left to right. During the vehicle turning process, the centripetal force on the passengers is F 向心 =mv 2 / R. When there is a height difference between the two sides of the seat, the supporting force provides centripetal force to the occupant, that is, F 支撑分力 =F 向心 According to the decomposition of force, the supporting force F 支撑分力 It can be expressed as follows:

[0086]

[0087] Thus, the mathematical relationship between the reference height difference ΔH and the curvature information (turning radius R) can be constructed as follows:

[0088]

[0089] Among them, m is the mass (weight) of the passenger, in kilograms (kg); v is the speed of the vehicle, which can be measured by the vehicle speed sensor; R is the radius of the vehicle when it is in circular motion, which can be obtained by identifying the arc of the turn based on the navigation information, and then determining the turning radius based on the arc information, or by identifying the lane line of the camera equipment, and then determining the turning radius based on the arc information, or by measuring the steering wheel angle sensor in the vehicle system, and then converting it through the corresponding relationship between the steering wheel angle and the circular motion of the vehicle. L is the left and right distance of the supporting structure that drives the vehicle seat to move; g is the gravity acceleration constant, which can be taken as 9.8; in addition, when the vehicle turns from left to right, the △H value can be positive, and when it turns from right to left, the △H value can be negative; after calculating △H, the control system adjusts the height difference (H1-H2) of the vehicle seat by real-time control of the seat adjustment mechanism to ensure that the current height difference (H1-H2) is consistent with the △H value. Among them, H1 is the measurement value of the height sensor on the left side of the seat motion support seat; H2 is the measurement value of the height sensor on the right side of the seat motion support seat.

[0090] This embodiment can achieve accurate construction of the mathematical relationship between the curvature information and the reference height difference, so that the vehicle seat adjusted according to the reference height difference can provide the required lateral force to the occupants, so that the centripetal force on the occupants is not provided by friction at all, thereby improving riding comfort.

[0091] Additionally, in one embodiment, controlling the current height difference of the vehicle seat to maintain the absolute value of the difference between the current height difference and the reference height difference within a preset difference range may specifically include:

[0092] Acquire the measurement values ​​corresponding to the height sensors on the left and right sides of the vehicle seat respectively in real time; determine the current height difference of the vehicle seat based on the measurement values; judge whether the absolute value of the difference between the current height difference and the reference height difference is within the difference range; if not, control the seat adjustment mechanism to adjust the current height difference until the absolute value of the difference between the adjusted current height difference and the reference height difference is within the difference range.

[0093] Figure 7 Schematic diagram of the structure of a seat adjustment mechanism of this embodiment. Figure 7As shown, the seat adjustment mechanism may include a fixed support seat 701, a bearing mounting seat 702, a bearing 703, a transmission support shaft 704, a motion support seat 705 (i.e., the support structure for driving the vehicle seat to move as described above), a transmission gear 706, a drive motor 707 (i.e., the seat adjustment motor described above), a stop pin 708, and a height sensor 709 and a height sensor 710. Among them, the fixed support seat 701 is used to connect the vehicle body and provide support force for the seat, and provide a fixed installation point for the drive motor 707. The bearing mounting seat 702 and the fixed support seat 701 are an integrated structure, providing conditions for the installation of the bearing 703. The bearing 703 is installed in the bearing mounting seat 702. The transmission support shaft 704 connects the transmission gear 706 and the motion support seat 705. The motion support seat 705 is connected to the vehicle seat and drives the vehicle seat to move. The transmission gear 706 transmits the rotational torque of the drive motor 707 to the motion support seat 705 through the transmission support shaft 704, driving the motion support seat 705 to rotate, and changing the height difference between the left and right sides of the vehicle seat. The drive motor 707 receives the signal from the control system and performs the corresponding rotation operation to provide power for the rotation of the motion support seat 705. After the drive motor 707 fails, the limit pin 708 locks the bearing mounting seat 702 and the motion support seat 705 in a horizontal position. At this time, the motion support seat 705 will no longer move, thereby ensuring the safety of the vehicle seat in extreme environments. The height sensor 709 and the height sensor 710 measure the height difference between the two sides of the vehicle seat and feed it back to the control system.

[0094] Therefore, the control system can monitor the current height difference between the left and right sides of the vehicle seat in real time through the height sensor, and determine whether the absolute value of the difference between it and the reference height difference is within a preset difference range (for example, less than 0.3 cm). If so, the height difference will no longer be adjusted; otherwise, the current height difference will continue to be adjusted until the absolute value of the above difference is within the difference range, thereby providing the passenger with a better leaning experience.

[0095] If the absolute value of the difference between the current height difference and the reference height difference exceeds the above difference range, it is necessary to determine whether the current height difference is excessive or insufficient. Taking the case where the height difference on both sides of the vehicle seat is too large as an example, it is necessary to drive the motor 707 to rotate the transmission support shaft 704 in the positive direction, drive the motion support seat 705 to rotate, and continuously determine the size relationship between the current height difference and the actual height difference during the rotation process. When the absolute value of the above difference is within the above difference range, the drive motor 707 stops rotating and hovers at the current position. Therefore, this embodiment can achieve accurate adjustment of the height difference of the vehicle seat.

[0096] In one embodiment, controlling the seat adjustment mechanism to adjust the current height difference until the absolute value of the difference between the adjusted current height difference and the reference height difference is within a difference range may include:

[0097] The seat adjustment motor is controlled to rotate to adjust the current height difference until the absolute value of the difference between the current height difference and the reference height difference is within the difference range. The height difference is adjusted by rotating the motor, which can achieve accurate and stable height difference adjustment.

[0098] In one embodiment, controlling the seat adjustment motor to rotate to adjust the current height difference until the absolute value of the difference between the current height difference and the reference height difference is within the difference range may include:

[0099] When the current height difference is higher than the reference height difference, the seat adjustment motor is controlled to rotate forward to adjust the current height difference until the absolute value of the difference between the current height difference and the reference height difference is within the difference range; when the current height difference is lower than the reference height difference, the seat adjustment motor is controlled to rotate reversely to adjust the current height difference until the absolute value of the difference between the current height difference and the reference height difference is within the difference range.

[0100] Based on the forward or reverse rotation of the motor, different height differences on the left and right sides of the vehicle seat can be adjusted, so as to flexibly adapt to different vehicle turning scenarios and improve the user experience.

[0101] Figure 8 is a flow chart of a vehicle seat adjustment method in some embodiments, such as Figure 8 As shown, the vehicle seat adjustment method comprises the following steps:

[0102] Step S801, determine whether the seat anti-sway function of the vehicle seat is turned on; if so, execute step S802; otherwise, end the process; wherein, the seat anti-sway function is to control the seat adjustment mechanism so that the seat can better absorb and disperse vibration energy when the vehicle is traveling, thereby reducing the shaking amplitude of the seat.

[0103] Step S802, determine whether navigation information is read; if so, execute step S803; otherwise, execute step S804; wherein, the navigation information can be read based on the application programming interface (API) provided by the navigation application on the user's mobile device, or the navigation information can be obtained based on the vehicle navigation system.

[0104] Step S803, obtaining the road information of the vehicle in a preset future period. The road information can be used to characterize the road condition information and driving status (straight or turning) of the subsequent vehicle; and executing step S805.

[0105] Step S804, acquiring road information according to the turn signal and the image information collected by the front-view camera device; executing step S805.

[0106] Step S805, calculating the turning radius of the vehicle when turning in the future time period.

[0107] Step S806, determining a reference height difference of the vehicle seat according to the turning radius. The corresponding relationship between the reference height difference and the turning radius can be referred to in the above embodiment, which will not be described in detail here.

[0108] Step S807, controlling the seat adjustment motor to rotate according to the reference height difference. The specific method of controlling the seat adjustment motor can refer to the above embodiment, which will not be described in detail here.

[0109] Step S808, obtaining the current height difference between the two sides of the vehicle seat. Specifically, the actual current height difference can be calculated based on the measurement values ​​of the height sensors on the two sides of the vehicle seat.

[0110] Step S809, obtaining the strength of the seat anti-roll function set by the user. The user can set the strength of the vehicle seat height adjustment through a preset button. S809 and S808 have no execution order and can be executed simultaneously.

[0111] Step S810, when the vehicle reaches a turning section, obtain the vehicle speed and steering wheel angle.

[0112] Step S811, determine the target height difference according to step S809 and step S810. Specifically, the real-time vehicle speed and the turning radius determined in real time based on the steering wheel angle can be used to determine a more accurate height difference to be achieved. Afterwards, the calculated height difference is reduced in combination with the anti-roll function strength set by the user to obtain a target height difference that meets the strength set by the user. It should be noted that the reference height difference calculated in step S806 is a theoretical height difference obtained by performing a theoretical calculation based on the curvature information in advance before the vehicle reaches the turning section, and the vehicle turns in the future period. The purpose of calculating the reference height difference is to facilitate the seat adjustment mechanism to adjust the seat height difference based on the reference height difference in advance. The target height difference calculated in this step is the theoretical height difference calculated based on the actual corresponding curvature information when the vehicle actually reaches the turning section, the vehicle's driving speed, and the seat adjustment strength set by the user, so as to obtain a more accurate theoretical value of the height difference when the vehicle has reached the turning section, so that the vehicle seat can be further adjusted in height based on the target height difference to adapt to the actual curvature of the turning section and the adjustment strength requirements set by the user.

[0113] Step S812, determine whether the absolute value of the difference between the target height difference and the current height difference is within a preset difference range; if so, execute step S813; otherwise, execute step S814.

[0114] Step S813, making the seat adjustment motor maintain the current position.

[0115] Step S814, determine whether the target height difference is greater than the current height difference, if so, execute step S815; otherwise, execute step S816.

[0116] Step S815, control the seat adjustment motor to rotate in the opposite direction for n turns. The value of n is a function calibration value, which is determined according to the motor selection and transmission speed ratio selection.

[0117] Step S816, controlling the seat adjustment motor to rotate n times in the positive direction.

[0118] Step S817, confirm that the vehicle is finished / the seat anti-roll function is turned off.

[0119] In some of the embodiments, the implementation of this embodiment, from the hardware level, can be composed of a perception system, a control system, an execution system and other structures. For example, the perception system may include: a vehicle speed sensor, a steering wheel angle sensor, a seat height sensor (the number may be 2), a front-view camera and a vehicle navigation system. The control system may include: a switch for providing auxiliary centripetal force of the seat, and auxiliary centripetal force intensity adjustment; the execution system may include: a drive motor; other structures may include: a fixed support seat, a bearing, a moving support seat, a drive gear, a transmission gear, a transmission shaft, and a limit pin; the software level may be composed of a motion control algorithm formed based on the above steps S801 to S817.

[0120] In particular, in some of the embodiments, a function control switch panel for adjusting the vehicle seat is also provided. Fig. 9 Schematic diagram of a functional control switch panel for adjusting a vehicle seat in some embodiments. Fig. 9As shown, the function control switch panel includes: an auxiliary turning function button 901, an auxiliary turning function adjustment gear button 902, an auxiliary turning function first fixed gear button 903, an auxiliary turning function second fixed gear button 904, and an auxiliary turning function third fixed gear button 905. Among them, the auxiliary turning function button 901 provides an on button (marked as "ON") and an off button (marked as "OFF"). When the user selects the on button, the auxiliary turning function will be turned on, and the height difference of the vehicle seat can be adjusted when the vehicle turns to improve the user's riding comfort; when the user selects the off button, the vehicle seat of the whole vehicle always keeps the height difference at 0 during the turning process. The auxiliary turning function adjustment gear button 902 provides an increase button (corresponding to the triangle with the hypotenuse on the upper side in the figure) and a decrease button (corresponding to the triangle with the hypotenuse on the lower side in the figure). The user changes the intensity of the seat height difference adjustment (the intensity range is 0% to 100%) by selecting the increase or decrease button. Alternatively, the user selects the first fixed gear button 903 of the auxiliary turning function, the second fixed gear button 904 of the auxiliary turning function, or the third fixed gear button 905 of the auxiliary turning function to select a fixed seat height difference adjustment strength. In some embodiments, the final target value of the height difference between the left and right sides of the seat during the turning process of the vehicle can be the height difference required for the seat lateral force to fully provide the centripetal force under the actual curvature information multiplied by the seat height difference adjustment strength set by the user.

[0121] The above steps S801 to S817 predict the vehicle turning based on the road information, and when it is predicted that the vehicle will turn, the seat adjustment is performed in advance according to the curvature information of the vehicle turning, so as to reduce the delay in adjusting the height difference of the vehicle seat and avoid false triggering of the seat adjustment during lane change on a straight road.

[0122] In general, this embodiment proposes a solution that combines vehicle navigation, turn signal, front-view camera equipment and seat adjustment mechanism, which makes up for the problem that the existing seat adjustment mechanism is prone to misjudgment, improves the accuracy and precision of seat adjustment, and improves the comfort of passengers during vehicle turning. At the same time, based on the motion characteristics of the vehicle during turning, this embodiment proposes a matching seat adjustment mechanism structure and a corresponding operation algorithm, and tilts the seat support surface through a controllable motion mechanism to give the human body a lateral force to support the human body to do circular motion, which has great application prospects in passenger cars and commercial buses.

[0123] In this embodiment, a vehicle seat adjustment device is also provided, which is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. The terms "module", "unit", "subunit", etc. used below can implement a combination of software and / or hardware for a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0124] Fig.10 : is a structural block diagram of the vehicle seat adjustment device 10 of this embodiment, as shown in Fig.10 As shown, the vehicle seat adjustment device 10 includes: a prediction module 12, a calculation module 14 and an adjustment module 16; wherein:

[0125] The prediction module 12 is used to determine the curvature information of the moving vehicle when it turns within a preset time period in the future based on the road information; the calculation module 14 is used to determine the reference height difference of the vehicle seat of the moving vehicle based on the curvature information; wherein the reference height difference is the height difference between the left and right sides of the same vehicle seat; the adjustment module 16 is used to control the current height difference of the vehicle seat, and the absolute value of the difference between the current height difference and the reference height difference is maintained within a preset difference range.

[0126] It should be noted that the above modules can be functional modules or program modules, and can be implemented by software or hardware. For modules implemented by hardware, the above modules can be located in the same processor; or the above modules can be located in different processors in any combination.

[0127] A vehicle is also provided in this embodiment. Fig.11 The structural diagram of the vehicle 110 provided in this embodiment is as follows: Fig.11 As shown, the vehicle 110 includes: a height sensor 112, a vehicle seat adjustment mechanism 114 and a control system 116:

[0128] The height sensor 112 is used to measure the height values ​​of the left and right sides of the vehicle seat; the vehicle seat adjustment mechanism 114 is used to adjust the height difference between the left and right sides of the vehicle seat; the control system 116 is used to execute the vehicle seat adjustment method provided in any of the above embodiments.

[0129] It should be noted that the specific examples in this embodiment can refer to the examples described in the above embodiments and optional implementations, and will not be repeated in this embodiment. Figure 7 , I will not go into details here.

[0130] In one embodiment, the vehicle seat adjustment mechanism 114 includes: a fixed support seat, a bearing mounting seat, a bearing, a transmission support shaft, a motion support seat, a transmission gear, a drive motor, a limit pin and a height sensor; wherein,

[0131] The fixed support seat is connected to the vehicle body, and the drive motor is installed on the fixed support seat; the drive end of the drive motor is connected to the gear teeth on the periphery of the transmission gear; the transmission support shaft connects the transmission gear and the moving support seat; the bearing supports the transmission support shaft; the moving support seat is connected to the vehicle seat, and the height sensor is arranged on the moving support seat; the bearing is installed in the bearing mounting seat; the bearing mounting seat and the fixed support seat are an integrated structure; the first position of the bearing mounting seat and the second position of the moving support seat are both provided with locking holes; the first position and the second position are opposite when the moving support seat is in a horizontal state; the sizes of the locking holes at the first position and the second position are matched with the limit pin; the limit pin is located at a preset retracted position in the retracted state, and is inserted into the locking holes on the bearing mounting seat and the moving support seat under the push of the trigger mechanism. The specific examples of the vehicle seat adjustment mechanism 114 in this embodiment can refer to the examples described in the above embodiments and optional implementation modes.

[0132] In addition, in combination with the vehicle seat adjustment method provided in the above embodiments, a storage medium may be provided in this embodiment to implement the vehicle seat adjustment method. The storage medium stores a computer program; when the computer program is executed by a processor, any vehicle seat adjustment method in the above embodiments is implemented.

[0133] It should be understood that the specific embodiments described herein are only used to explain the application, rather than to limit it. Based on the embodiments provided in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of this application.

[0134] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0135] Obviously, the drawings are only some examples or embodiments of the present application. For ordinary technicians in the field, the present application can also be applied to other similar situations based on these drawings without creative work. In addition, it is understandable that although the work done in this development process may be complicated and lengthy, for ordinary technicians in the field, certain changes in design, manufacturing or production based on the technical content disclosed in this application are only conventional technical means and should not be regarded as insufficient content disclosed in this application.

[0136] The term "embodiment" in this application refers to a specific feature, structure or characteristic described in conjunction with the embodiment that can be included in at least one embodiment of the present application. The appearance of this phrase in various locations in the specification does not necessarily mean the same embodiment, nor does it mean that it is mutually exclusive with other embodiments and is independent or optional. It is clearly or implicitly understood by those of ordinary skill in the art that the embodiments described in this application can be combined with other embodiments without conflict.

[0137] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of patent protection. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the scope of protection of the present application. Therefore, the scope of protection of the present application shall be subject to the attached claims.

Claims

1. A vehicle seat adjustment method, characterized in that: include: Determine, based on the road information, the curvature information of the vehicle when turning within a preset time period in the future; Determine a reference height difference of a vehicle seat of the moving vehicle according to the curvature information; wherein the reference height difference is a height difference between left and right sides of the same vehicle seat; The current height difference of the vehicle seat is controlled so that the absolute value of the difference between the current height difference and the reference height difference is maintained within a preset difference range.

2. The vehicle seat adjustment method according to claim 1, characterized in that: Before determining, based on the road information, the curvature information of the traveling vehicle when turning within a preset time period in the future, the method further includes: Determine whether navigation information of the traveling vehicle is read; if the navigation information is read, predict whether the traveling vehicle will turn in a future period based on the navigation information; the navigation information includes road information of the traveling vehicle.

3. The vehicle seat adjustment method according to claim 2, characterized in that: If the navigation information is not read, the method further includes: The road information is acquired according to the turn signal of the moving vehicle and the image information collected by the forward-looking camera device of the moving vehicle, and based on the road information, it is predicted whether the moving vehicle will turn in a future period of time.

4. The vehicle seat adjustment method according to claim 1, characterized in that: Determining a reference height difference of a vehicle seat of the moving vehicle according to the curvature information includes: The reference height difference is determined based on the curvature information and the pre-established mathematical relationship between the curvature information and the height difference between the left and right sides of the vehicle seat; the mathematical relationship is constructed based on the relationship between the centripetal force of the passenger when the vehicle turns and the curvature information, and the relationship between the lateral force provided by the vehicle seat and the height difference between the two sides of the vehicle seat.

5. The vehicle seat adjustment method according to any one of claims 1 to 4, characterized in that: Controlling the current height difference of the vehicle seat to keep the absolute value of the difference between the current height difference and the reference height difference within a preset difference range, including: Real-time acquisition of measurement values ​​corresponding to the height sensors on the left and right sides of the vehicle seat; determining a current height difference of the vehicle seat based on the measured value; Determine whether the absolute value of the difference between the current height difference and the reference height difference is within the difference range; if not, control the seat adjustment mechanism to adjust the current height difference until the absolute value of the difference between the current height difference and the reference height difference after adjustment is within the difference range.

6. The vehicle seat adjustment method according to claim 5, characterized in that: Controlling the seat adjustment mechanism to adjust the current height difference until the absolute value of the difference between the adjusted current height difference and the reference height difference is within the difference range includes: The seat adjustment motor is controlled to rotate to adjust the current height difference until the absolute value of the difference between the current height difference and the reference height difference is within the difference range.

7. The vehicle seat adjustment method according to claim 6, characterized in that: Controlling the seat adjustment motor to rotate to adjust the current height difference until the absolute value of the difference between the current height difference and the reference height difference is within the difference range, including: In a case where the current height difference is higher than the reference height difference, controlling the seat adjustment motor to rotate forward to adjust the current height difference until the absolute value of the difference between the current height difference and the reference height difference is within the difference range; In a case where the current height difference is lower than the reference height difference, the seat adjustment motor is controlled to rotate in the reverse direction to adjust the current height difference until the absolute value of the difference between the current height difference and the reference height difference is within the difference range.

8. A vehicle seat adjustment device, characterized in that: include: Prediction module, calculation module and adjustment module; among which: The prediction module is used to determine the curvature information of the traveling vehicle when it turns within a preset time period in the future according to the road information; The calculation module is used to determine a reference height difference of a vehicle seat of the moving vehicle according to the curvature information; wherein the reference height difference is a height difference between left and right sides of the same vehicle seat; The adjustment module is used to control the current height difference of the vehicle seat so that the absolute value of the difference between the current height difference and the reference height difference remains within a preset difference range.

9. A vehicle, comprising a seat height sensor, a vehicle seat adjustment mechanism and a control system, characterized in that: The seat height sensor is used to measure the height values ​​of the left and right sides of the vehicle seat; The vehicle seat adjustment mechanism is used to adjust the height difference between the left and right sides of the vehicle seat; The control system is used to execute the vehicle seat adjustment method according to any one of claims 1 to 7.

10. The vehicle according to claim 9, characterized in that The vehicle seat adjustment mechanism comprises: Fixed support seat, bearing mounting seat, bearing, transmission support shaft, motion support seat, transmission gear, drive motor, limit pin and height sensor; wherein, The fixed support seat is connected to the body of the vehicle, and the drive motor is installed on the fixed support seat; The driving end of the driving motor is connected to the gear teeth on the outer periphery of the transmission gear; The transmission support shaft connects the transmission gear and the motion support seat; the bearing supports the transmission support shaft; The motion support seat is connected to the vehicle seat, and the height sensor is arranged on the motion support seat; The bearing is installed in the bearing mounting seat; the bearing mounting seat and the fixed support seat are an integrated structure; The first position of the bearing mounting seat and the second position of the motion support seat are both provided with locking holes; the first position and the second position are relative when the motion support seat is in a horizontal state; the sizes of the locking holes at the first position and the second position are matched with the limit pin; the limit pin is located at a preset retracted position in the retracted state, and is inserted into the locking holes on the bearing mounting seat and the motion support seat under the push of the trigger mechanism.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the vehicle seat adjustment method according to any one of claims 1 to 7 are implemented.

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