CN112550090A - Seat device for vehicle - Google Patents

Seat device for vehicle Download PDF

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Publication number
CN112550090A
CN112550090A CN202011542501.4A CN202011542501A CN112550090A CN 112550090 A CN112550090 A CN 112550090A CN 202011542501 A CN202011542501 A CN 202011542501A CN 112550090 A CN112550090 A CN 112550090A
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CN
China
Prior art keywords
automobile
component
seat
vehicle
adjustable sleeve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011542501.4A
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Chinese (zh)
Inventor
魏淳
王振
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Modern Auto Yancheng Co Ltd
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Modern Auto Yancheng Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Modern Auto Yancheng Co Ltd filed Critical Modern Auto Yancheng Co Ltd
Priority to CN202011542501.4A priority Critical patent/CN112550090A/en
Publication of CN112550090A publication Critical patent/CN112550090A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224Non-manual adjustments, e.g. with electrical operation
    • B60N2/0244Non-manual adjustments, e.g. with electrical operation with logic circuits
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224Non-manual adjustments, e.g. with electrical operation
    • B60N2/0244Non-manual adjustments, e.g. with electrical operation with logic circuits
    • B60N2/0268Non-manual adjustments, e.g. with electrical operation with logic circuits using sensors or detectors for adapting the seat or seat part, e.g. to the position of an occupant

Abstract

The invention provides a vehicle seat device, comprising a seat and a vehicle body, comprising: the buffer component can change the length along the height direction of the automobile, and one end of the buffer component is connected with the seat, and the other end of the buffer component is connected with the automobile body; the identification component is arranged on the automobile body and used for monitoring road surface parameters in the advancing direction of the automobile and motion parameters of the automobile; and the control component is connected with the recognition component and the buffer component, and controls the length of the buffer component along the height direction of the automobile when the automobile passes through a road obstacle in real time according to the bouncing self-adjustment amount, the road parameter and the motion parameter of the automobile body along the height direction so as to counteract the vibration of the seat in the height direction of the automobile. The height of the seat is actively adjusted by calculating the adjustment amount in advance and driving the seat into a road obstacle, so that jolt of the automobile in the driving process is offset, and the riding experience is improved.

Description

Seat device for vehicle
Technical Field
The invention relates to the field of automobiles, in particular to an automobile seat device.
Background
The conventional magnetic suspension seat is only used for converting a mechanical structure adjusting mechanism of the conventional automobile seat into magnetic suspension adjustment, and is only used for manually adjusting the degree of freedom of the seat and passively buffering the bounce caused by obstacles. However, this adjustment is slow to react and the cushioning reaction can only be carried out after the heave has occurred, and the passengers can still feel the jolt before and during the cushioning.
Disclosure of Invention
The invention aims to solve the technical problem that in the prior art, the seat cannot actively buffer and offset jolt of an automobile in the driving process, so that the riding experience is poor. The height of the seat is actively adjusted by calculating the adjustment amount in advance and driving the seat into a road obstacle, so that jolt of the automobile in the driving process is offset, and the riding experience is improved.
The invention provides a vehicle seat device, comprising a seat and a vehicle body, comprising: the buffer component can change the length along the height direction of the automobile, and one end of the buffer component is connected with the seat, and the other end of the buffer component is connected with the automobile body; the identification component is arranged on the automobile body and used for monitoring road surface parameters in the advancing direction of the automobile and motion parameters of the automobile; and the control component is connected with the recognition component and the buffer component, and controls the length of the buffer component along the height direction of the automobile when the automobile passes through a road obstacle in real time according to the bouncing self-adjustment amount, the road parameter and the motion parameter of the automobile body along the height direction so as to counteract the vibration of the seat in the height direction of the automobile.
By adopting the scheme, the front road condition is predicted in advance through the recognition component, and the control component controls the lifting action of the buffer component in real time after the parameter calculation provided by the recognition component, so that the basic maintenance of the upper and lower positions of the seat is completed, the influence of uneven road surface on the upper and lower positions of the seat is reduced, and the effect of actively controlling the comfort of the seat is achieved.
According to another embodiment of the present invention, an automotive seat apparatus is disclosed in which the identification component includes a radar component and a camera component, and the road surface parameters include road surface obstacle position information and road surface flatness; the camera component carries out visual identification on the road surface condition so as to acquire the position information of the road surface obstacle; the radar component detects the position of the road surface obstacle and acquires the road surface flatness.
By adopting the scheme, the road surface state can be accurately and reliably reflected by taking the road surface obstacle position information and the road surface flatness as the road surface parameters, and the calculation method and the control process are simpler. The corresponding camera component ensures that the obstacle position is quickly positioned, the radar component can accurately obtain the metering state of the obstacle, and the camera component and the radar component are matched to ensure quick identification and realize accurate identification.
According to another embodiment of the present invention, an automotive seat device is disclosed in which a radar member and a camera member are provided at a front end of a vehicle body, and the camera member is an ADAS camera and the radar member is a millimeter wave radar.
By adopting the scheme, the ADAS is an advanced driving auxiliary system contained in the existing high-end vehicle model, and the ADAS camera can be used for efficiently utilizing the equipment of the existing high-end vehicle model. The millimeter wave radar is adopted for accurate calculation and high utilization rate. Utilize ADAS camera, the input signal of millimeter wave radar, judge the place ahead road surface condition in advance, calculate in advance through the control unit, the magnetic suspension device of accurate control seat improves the travelling comfort.
According to another embodiment of the present invention, the embodiment of the present invention discloses a seat apparatus for a vehicle, wherein the motion parameters of the vehicle include a driving speed and a steering wheel rotation angle of the vehicle; and the identification component also comprises an automobile motion monitor which monitors the automobile running speed and the steering wheel rotation angle and obtains the automobile motion parameters according to the automobile running speed and the steering wheel rotation angle.
By adopting the scheme, the running speed and the rotating angle of the steering wheel can be acquired through the whole vehicle control component or the additionally arranged sensor, the running angle of the vehicle can be acquired through the angle selected by the steering wheel, the method is simpler and more direct compared with methods such as positioning measurement, the running state of the vehicle can be accurately and simply acquired through the running speed of the vehicle and the rotating angle of the steering wheel, and accurate guide is provided for controlling the adjustment of the buffer component.
According to another embodiment of the present invention, a control unit presets monitoring points in at least one road surface obstacle according to position information of the road surface obstacle, respectively obtains road surface flatness of each monitoring point, obtains vehicle body bounce amount according to the road surface flatness of each monitoring point, and obtains deformation execution amount according to a difference between the vehicle body bounce amount and self-adjustment bounce amount; and the control component predicts the execution time of the automobile passing each monitoring point according to the running speed and the rotation angle of the steering wheel, and controls the buffer component to adjust the corresponding length in the execution time in real time by the deformation execution amount.
By adopting the scheme, the control component monitors the road surface leveling condition of the front road in real time according to signals of the ADAS camera, the millimeter wave radar and other devices, presets and adjusts the deformation execution quantity required by the automobile for changing the height of the seat in real time, and adjusts the height of the seat by the deformation execution quantity adjusting buffer component in real time, so that the aims that the automobile body is fluctuated due to the uneven road surface, but the height of the seat from the ground is basically unchanged, and the seat is not fluctuated due to the fluctuation of the automobile body are fulfilled.
According to another embodiment of the present invention, an automotive seat apparatus is disclosed in which the bounce self-adjustment amount includes a suspension deformation amount and a tire deformation amount of the vehicle body, wherein the control section acquires the suspension deformation amount and the tire deformation amount corresponding to the road surface obstacle from vehicle body parameters including a tire load and a vehicle weight.
By adopting the scheme, the control component obtains the position in front of the automobile, which is provided with the deep pit or the big bump, the control component can calculate the distance between the automobile and the ground plane according to the load distribution of each tire of the automobile, the basic information Map for damping the elastic component of the suspension of the automobile and the automobile speed, and the distance between the automobile and the ground plane is not flat, the automobile can pass through the pit after a few seconds, the automobile speed at the time when the automobile passes through the pit with the depth, the automobile suspension can weaken the bump to what extent (self-adjusting amount of the bump), and the rest bump is absorbed by the buffer component by adjusting the deformation execution amount. The suspension deformation quantity and the tire deformation quantity can truly reflect the bounce self-adjustment quantity of the automobile to the maximum extent.
According to another embodiment of the present invention, the vehicle seat apparatus is disclosed in which a displacement sensor is provided on each suspension of the vehicle body, and the control unit obtains the tire load and the vehicle weight from a suspension vibration signal measured by the displacement sensor when the vehicle is stationary.
By adopting the scheme, the self-adjusting amount of the jumping can be accurately determined, and the deformation execution amount of the buffer component can be accurately adjusted according to the self-adjusting amount of the jumping.
According to another embodiment of the present invention, an automotive seat assembly is disclosed in which the cushion member includes a plurality of magnetically levitated adjustment assemblies including a first adjustable sleeve, a second adjustable sleeve, a permanent magnet member and an electromagnet member; one end of the first adjustable sleeve is fixedly connected with the seat, the other end of the first adjustable sleeve is sleeved on the second adjustable sleeve, one end, far away from the first adjustable sleeve, of the second adjustable sleeve is fixedly connected with the automobile body, and the first adjustable sleeve can move along the height direction of the automobile relative to the second adjustable sleeve; the permanent magnet component is fixedly arranged in the accommodating cavity in the first adjustable sleeve, the electromagnet component is fixedly arranged in the accommodating cavity in the second adjustable sleeve, and the permanent magnet component and the electromagnet component are arranged at intervals; and the control component controls the electromagnet component to be electrified so as to change the magnetic force between the permanent magnet component and the electromagnet component and drive the first adjustable sleeve to change the relative distance relative to the second adjustable sleeve.
By adopting the scheme, the recognition component collects information in front of the detection road and feeds the information back to the control component, the control component obtains how long the vehicle passes through a part with uneven road surface according to the information in front of the road, the timing is held, and when the control component judges that the vehicle body still has vibration to be transmitted to the seat after the vehicle body is filtered by the jumping self-adjustment amount in advance, the control component controls the electromagnet component of the magnetic suspension adjusting assembly to enable the seat to move up and down. Namely, the vehicle body moves upwards, and the first adjustable sleeve moves downwards relative to the second adjustable sleeve; when the vehicle body moves downwards, the first adjustable sleeve moves upwards relative to the second adjustable sleeve. The seat body can thus be maintained in a position which is substantially constant or slightly variable with respect to the height of the ground. Thereby achieving the comfort of the seat and reducing the jolt of the seat. The riding experience similar to a magic blanket is achieved.
According to another specific embodiment of the present invention, in the automobile seat device disclosed in the embodiment of the present invention, the buffer component includes a U-shaped slot motor, the U-shaped slot motor includes a stator and a rotor disposed on the stator, the rotor is connected to the bottom of the seat, the stator is disposed on the automobile body, and the control component controls the U-shaped slot motor to lift and lower along the height direction of the automobile.
By adopting the scheme, the motor with the U-shaped groove motor capable of directly moving linearly is a mechanism for converting electric power into mechanical energy of linear motion. The U-shaped groove motor has high responsiveness, generates large and controllable force and is widely applied, and the principle of the U-shaped groove motor is not explained any more. The rotor is fixed on the seat, the stator is fixed on the floor of the vehicle body, and the up-and-down movement of the rotor in the U-shaped groove motor is controlled to adjust the seat.
According to another embodiment of the present invention, the cushioning member further includes an elastic member, one end of the elastic member is fixedly connected to the seat, and the other end of the elastic member is fixedly connected to the vehicle body.
By adopting the scheme, the elastic component is added below the seat and is used for supporting the seat and the weight of the human body. When the seat is on a flat road surface of the automobile, the elastic component is used for balancing the weight of the seat and the passenger.
The invention has the beneficial effects that:
through providing a car seat device, through the place ahead road surface condition of foreknowledge in advance of identification means, the control part is through the parameter calculation back that the identification means provided, and the lift action of real time control buffer unit to this completion is to the basic maintenance of seat upper and lower position, has reduced the influence of road surface unevenness to the upper and lower position of seat, has reached the effect of active control seat travelling comfort.
Drawings
Fig. 1 is a schematic control diagram of a vehicle seat device according to embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a magnetic levitation adjustment assembly of an automobile seat device in embodiment 1 of the present invention;
fig. 3 is a control flow block diagram of a vehicle seat apparatus according to embodiment 1 of the present invention;
fig. 4 is a schematic structural diagram of a U-shaped slot motor of an automobile seat device in embodiment 2 of the present invention.
Description of reference numerals:
1: a seat; 2: a vehicle body;
10: a buffer member;
11: a magnetic suspension adjusting assembly;
111: a first adjustable sleeve; 112: a second adjustable sleeve;
113: a permanent magnet member; 114: an electromagnet member;
12: a U-shaped slot motor;
121: a mover; 122: a stator; 123: an elastic member;
20: identifying a component; 21: a radar member; 22: a camera member;
30: and a control component.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to these embodiments. On the contrary, the invention is described in connection with the embodiments for the purpose of covering alternatives or modifications that may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.
In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the present invention.
The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present embodiment, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected," and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present embodiment can be understood in specific cases by those of ordinary skill in the art.
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Example 1
There is provided a seat apparatus for a vehicle, as shown in fig. 1, including a seat and a vehicle body, comprising: a cushion member 10, the cushion member 10 being changeable in length in a height direction of the automobile, and one end of the cushion member 10 being connected to the seat and the other end being connected to the body; the identification component 20 is arranged on the vehicle body and used for monitoring road surface parameters in the advancing direction of the vehicle and motion parameters of the vehicle; and the control part 30, wherein the control part 30 is connected with the recognition part 20 and the buffer part 10, and controls the length of the buffer part 10 along the height direction of the automobile when the automobile passes through the road obstacle in real time according to the bouncing self-adjustment amount of the automobile body along the height direction, the road parameter and the motion parameter so as to counteract the vibration of the seat in the height direction of the automobile.
The connection mode of the buffer component 10, the vehicle body and the seat can be detachable connection such as threaded connection and clamping connection, or non-detachable connection such as welding and riveting, and the buffer component 10 can be a device which can adjust the length in real time such as a lifter, a magnetic suspension mechanism or a motor. The recognition unit 20 may be a sensor, a camera, or the like of an Advanced Driving Assistance System (ADAS) of a part of the vehicle model, or may be an additional sensor, a camera, a radar, or the like, such as a laser range finder or a charge coupled device camera. The control component 30 may be a vehicle controller of the vehicle itself or an additional controller. Preferred embodiments of the buffer means 10, the control means 30 and the identification means 20 are described later and will not be described in detail.
The road surface parameter is a parameter indicating a road surface obstacle condition, and may be, depending on a calculation method or a measurement element, the flatness, the absolute height relative to a certain point, an angle, or the like of a road surface passing in the forward direction of the vehicle, as long as the road surface parameter is data that can represent a road surface bump condition or enable calculation of a road surface obstacle. The motion parameters may be the vehicle motion states such as the mechanical speed, the positioning speed, the angle of the forward direction relative to a certain reference system of the road surface, or the angle of the steering wheel, and the like, as long as the parameters can be calculated and guide the vehicle to control the buffer component 10 to adjust. That is, the road surface parameters and the motion parameters are selected according to the design requirements, based on which the adjustment amount is calculated when the obstacle passes through.
It should be understood that "controlling the buffering component 10 in real time" means that the adjustment amount during the traveling process is changed because the obstacle itself is not uniform, and the changed adjustment amount also needs a corresponding control timing, that is, one adjustment amount corresponds to one control timing during the buffering process, the control component 30 continuously controls the buffering component 10 to adjust, and the adjustment amount and the adjustment timing should be estimated by the identification component 20 and the control component 30 before entering the obstacle.
The bounce self-adjusting quantity refers to the buffer adjusting quantity of the automobile in the height direction of the automobile except the device, generally refers to the adjusting quantity of a suspension, and other buffer parts 10 are arranged in some automobile models, so that a person skilled in the art can design the bounce self-adjusting quantity according to the actual automobile model. For example, the control unit 30 can calculate, based on the tire load distribution of the vehicle and the basic information Map for damping the shock of the elastic member 123 of the suspension of the vehicle, how much the vehicle suspension attenuates the bump when passing through a certain depression at a distance, and the remaining bump is absorbed by the vertical displacement of the shock absorbing member 10.
When the vehicle is used, the recognition component 20 collects information in front of a detected road and feeds the information back to the control component 30, the control component 30 processes the feedback information to recognize the hollow condition or the uneven condition of the road and detect the motion parameters of the vehicle, the control component 30 judges how long the vehicle passes through a certain uneven part of the road surface after processing the information, the buffer component 10 is adjusted in real time when holding the timing, and when the control component 30 judges that the vehicle body has the bounce self-adjustment amount for filtering the vibration and the vibration in the height direction is still transmitted to the seat, the control component 30 controls the buffer component 10 to move up and down. When the vehicle body moves upward, the cushioning member 10 is shortened; when the vehicle body moves downward, the cushioning member 10 tube expands. The seat thus maintains a position that is substantially constant or slightly variable relative to the ground level. Therefore, the comfort of the seat is achieved, the jolt of the seat is reduced, and the riding experience similar to a magic blanket is achieved.
By adopting the scheme, the invention predicts the front road condition in advance through the recognition component 20, and the control component 30 controls the lifting action of the buffer component 10 in real time after the parameter calculation provided by the recognition component 20, thereby completing the basic maintenance of the up-down position of the seat, reducing the influence of uneven road surface on the up-down position of the seat and achieving the effect of actively controlling the comfort of the seat.
According to another embodiment of the present invention, an embodiment of the present invention discloses an automobile seat device, as shown in fig. 1, the identification component 20 includes a radar component 21 and a camera component 22, and the road surface parameters include road surface obstacle position information and road surface flatness; wherein the camera member 22 performs visual recognition on the road surface condition to acquire road surface obstacle position information; the radar member 21 detects the road surface obstacle position and acquires the road surface flatness.
In particular, the camera member 22 and the radar member 21 may be included in an existing system of the automobile, or may be additionally installed. The camera member 22 and the radar member 21 may be devices commonly used in the automotive field. For example, the radar may be a pulse radar, an FMCW radar, a microwave impact radar, or the like.
After acquiring the road surface obstacle position information, the camera member 22 first performs visual recognition on the condition of the road surface to quickly locate the obstacle position, and then the radar member 21 detects the road surface flatness of the road surface using electromagnetic wave reflection to obtain the form information. By combining the two kinds of information, the control unit 30 can obtain what depth of pit or what size of bulge is located at what position in front of the automobile.
Because the reaction of the cushioning component 10 takes time, the further the camera member 22 and the radar member 21 are, the more beneficial the comfort of the magnetic levitation seat is.
By adopting the scheme, the road surface state can be accurately and reliably reflected by taking the road surface obstacle position information and the road surface flatness as the road surface parameters, and the calculation method and the control process are simpler. The corresponding camera component 22 ensures that the obstacle position is quickly positioned, and the radar component 21 can accurately obtain the metering state of the obstacle, so that the quick identification and the accurate identification are ensured in cooperation.
In a preferred form, the radar member 21 and the camera member 22 are provided at the front end of the vehicle body, and the camera member 22 is an ADAS camera and the radar member 21 is a millimeter wave radar.
By adopting the scheme, the ADAS is an advanced driving auxiliary system contained in the existing high-end vehicle model, and the ADAS camera can be used for efficiently utilizing the equipment of the existing high-end vehicle model. The millimeter wave radar is adopted for accurate calculation and high utilization rate. Utilize ADAS camera, the input signal of millimeter wave radar, judge the place ahead road surface condition in advance, calculate in advance through control unit 30, the magnetic suspension device of accurate control seat improves the travelling comfort.
According to another embodiment of the present invention, the embodiment of the present invention discloses a seat apparatus for a vehicle, wherein the motion parameters of the vehicle include a driving speed and a steering wheel rotation angle of the vehicle; and the recognition part 20 further includes a car motion monitor which monitors a car driving speed and a steering wheel rotation angle and obtains a car motion parameter according to the car driving speed and the steering wheel rotation angle.
The control unit 30 calculates how long the vehicle will pass through a pothole when a certain road irregularity is located at a distance, based on the driving speed and the steering wheel rotation angle and the road surface parameters.
By adopting the scheme, the running speed and the rotating angle of the steering wheel can be acquired through the whole vehicle control component 30 or an additionally arranged sensor, the running angle of the vehicle can be acquired through the angle selected by the steering wheel, the method is simpler and more direct compared with methods such as positioning measurement, the running state of the vehicle can be accurately and simply acquired through the running speed of the vehicle and the rotating angle of the steering wheel, and accurate guidance is provided for controlling the adjustment of the buffer component 10.
According to another embodiment of the present invention, an automobile seat device is disclosed in the embodiment of the present invention, as shown in fig. 3, the control unit 30 presets monitoring points in at least one road surface obstacle according to the position information of the road surface obstacle, respectively obtains the road surface flatness of each monitoring point, obtains the vehicle body bounce amount according to the road surface flatness of each monitoring point when the automobile passes by, and obtains the deformation execution amount according to the difference between the vehicle body bounce amount and the bounce self-adjustment amount; and the control part 30 predicts an execution time for the vehicle to pass each monitoring point according to the traveling speed and the steering wheel rotation angle, and controls the buffering part 10 to adjust the corresponding length by the deformation execution amount at the execution time in real time.
Specifically, the control section 30 may calculate the next action of the cushioning member 10, i.e., the action of the cushioning member 10 at the next monitoring point, in advance, after calculating the deformation execution amount. Since any equipment needs reaction time, that is, the control unit 30 sends out a command to move the buffer unit 10 up and down, it takes time for the buffer unit 10 to actually react and complete the displacement. Therefore, the process is that the control part 30 calculates when the vehicle reaches the hollow part, namely, the execution time, the control part 30 sends a command at the execution time, the buffer part 10 reacts for a period of time, then the control part 30 calculates that the vehicle reaches the first monitoring point, the control part 30 sends a command, and the buffer part 10 reacts for a period of time before the next monitoring point, so that the continuous control finally realizes that the lifting action of the buffer part 10 is completely counteracted with the vertical jolt of the vehicle body. The setting of the monitoring points can be selected according to the response rate of the equipment, on the premise that the accuracy of the equipment can be reflected, the more the monitoring points are, the smoother the real-time adjustment process is, for example, an automobile drives through a U-shaped pit of 0.5m at the speed of 20km/h, 1 monitoring point is arranged in the middle of the U-shaped pit, the buffer component 10 completes adjustment from the pit entering position to the monitoring point, and completes second adjustment from the monitoring point to the pit leaving position.
And obtaining deformation execution quantity by the difference between the vehicle body jumping quantity and the jumping self-adjustment quantity. For example, after the vehicle body is subjected to suspension filtering vibration, the vehicle body still has vibration to be transmitted to the seat, and the deformation execution amount refers to the vibration allowance left after the suspension filtering vibration.
By adopting the scheme, the control component 30 monitors the road surface leveling condition of the front road in real time according to signals of devices such as an ADAS camera, a millimeter wave radar and the like, presets and adjusts the deformation execution quantity required by the automobile for changing the height of the seat in real time, and adjusts the height of the seat by the deformation execution quantity adjusting buffer component 10 in real time, so that the purposes that the automobile body is fluctuated due to the rugged road surface, but the height of the seat from the ground is basically unchanged, and the seat is not fluctuated due to the fluctuation of the automobile body are achieved.
According to another embodiment of the present invention, the embodiment of the present invention discloses a vehicle seat apparatus in which the bounce self-adjustment amount includes a suspension deformation amount and a tire deformation amount of the vehicle body, wherein the control part 30 acquires the suspension deformation amount and the tire deformation amount corresponding to the road surface obstacle from vehicle body parameters including a tire load and a vehicle weight.
Specifically, when the vehicle weight and the load distribution of each tire are known, the vertical run-out amount control section 30 of the vehicle can be calculated in advance from the vehicle body parameters when the vehicle travels too much in a pothole at what speed.
It should be understood that, a designer skilled in the art will test the simulation basic data of the suspension during design and manufacture, and the damping performance of the suspension of the automobile when the suspension encounters bump can be calculated by simulation on a computer by a suspension engineer in the art. That is, when the existing automobile runs at a certain speed, the suspension mechanism of each tire passes over the road surface undulation (and the shape of the road surface undulation may be of a known magnitude if also known), and the speed at which the elastic member 123 contracts or expands is determined.
When the vehicle is used, the control unit 30 obtains the depth of the pit or the bump at the front position of the vehicle, the control unit 30 calculates the distance of the uneven road surface according to the load distribution of each tire of the vehicle, the basic information Map for damping the elastic member 123 of the suspension of the vehicle, and the vehicle speed, and then the vehicle passes through the pit after a few seconds, when the vehicle speed passes through the pit with the depth, the degree of the bump is weakened by the suspension of the vehicle (the self-adjusting amount of the bump), and the residual bump is absorbed by the buffer unit 10 by adjusting the deformation execution amount.
By adopting the scheme, the suspension deformation and the tire deformation can truly reflect the bounce self-adjustment quantity of the automobile to the maximum extent.
According to another embodiment of the present invention, the embodiment of the present invention discloses a vehicle seat apparatus, wherein a displacement sensor is provided on each suspension of a vehicle body, and a control part 30 obtains a tire load and a vehicle weight from a suspension vibration signal measured by the displacement sensor when the vehicle is stationary.
Specifically, a displacement sensor is added to each suspension of the automobile, and based on the displacement sensor signals of the four suspension shock absorbers, the control unit 30 calculates the displacement of the four shock absorbers and thus the weight change of the automobile, even the load of each tire, when the automobile is stationary. Under this precondition. The bounce amount of the suspension of each automobile when the suspension is subjected to the road surface fluctuation and the vertical direction rigidity value of the suspension are determined.
By adopting the scheme, the self-adjusting amount of the jumping can be accurately determined, and the deformation execution amount of the buffering component 10 can be accurately adjusted according to the self-adjusting amount of the jumping.
According to another embodiment of the present invention, in an automotive seat device disclosed in the embodiment of the present invention, as shown in fig. 2, the cushioning component 10 includes a plurality of magnetic levitation adjustment assemblies 11, and each of the magnetic levitation adjustment assemblies 11 includes a first adjustable sleeve 111, a second adjustable sleeve 112, a permanent magnet member 113, and an electromagnet member 114; one end of the first adjustable sleeve 111 is fixedly connected with the seat, the other end of the first adjustable sleeve is sleeved on the second adjustable sleeve 112, one end, far away from the first adjustable sleeve 111, of the second adjustable sleeve 112 is fixedly connected with the automobile body, and the first adjustable sleeve 111 can move along the height direction of the automobile relative to the second adjustable sleeve 112; and the permanent magnet member 113 is fixedly arranged in the accommodating cavity in the first adjustable sleeve 111, the electromagnet member 114 is fixedly arranged in the accommodating cavity in the second adjustable sleeve 112, and the permanent magnet member 113 and the electromagnet member 114 are arranged at intervals; and the control part 30 controls the electromagnet member 114 to be energized to change the magnetic force between the permanent magnet member 113 and the electromagnet member 114 and bring the first adjustable sleeve 111 to change the relative distance with respect to the second adjustable sleeve 112.
Specifically, the permanent magnet member 113 and the electromagnet member 114 are disposed at a spacing, that is, their initial positions are maintained at a certain spacing by magnetic force to allow for an adjustment process. The fixing connection mode in this embodiment may be a non-detachable connection mode such as welding or caulking, or a detachable connection mode. The permanent magnet member 113 and the electromagnet member 114 change the relative distance, and the first adjustable sleeve 111 and the second adjustable sleeve 112 change the relative distance, so that the seat is driven to change the relative distance with the vehicle body.
When the vehicle body passes through the undulation, if the vehicle body is calculated to jump upwards, the force between the electromagnet component 114 and the permanent magnet component 113 is changed into suction force, and as long as the magnitude and the duration of the force are calculated, the vehicle body drives the magnetic suspension adjusting assembly 11 to jump upwards as a whole, but because the electromagnet component 114 sucks the permanent magnet component 113, the first adjustable sleeve 111 where the permanent magnet component 113 is located is connected with the seat, so that the seat moves downwards relative to the vehicle body, the distance between the vehicle body and the seat, namely the distance between the permanent magnet component 113 and the electromagnet component 114, is reduced, but the height of the seat relative to the ground is basically unchanged, and therefore the seat is not bounced by the ground jolt, and the original absolute ground clearance is maintained. Conversely, when the vehicle body is dropped, the magnetic suspension adjusting assembly 11 performs the reverse operation, the electromagnet member 114 and the permanent magnet member 113 are repulsive force, the distance between the electromagnet member and the permanent magnet member is increased, that is, the distance between the vehicle body and the seat is increased, and the absolute height of the seat from the ground is also kept unchanged, so that the comfort is improved.
It will be appreciated that the number of magnetic levitation adjustment assemblies 11 can be increased or decreased in number according to performance requirements, and can be accommodated against the seat weight and adequately adjusted for weight.
When the electromagnet member 114 is energized, a magnetic field is generated, and the first adjustable sleeve 111 is driven to move up and down by magnetic force according to the principle that like poles of the magnets repel and opposite poles of the magnets attract. The magnetic field relation between the permanent magnet and the electromagnet and the magnetic force direction between the permanent magnet and the electromagnet can be realized by changing the current direction in the electromagnet.
That is, the control unit 30 controls the electromagnet member 114 under the seat, and the electromagnet is based on the principle that the electromagnet is electrified to generate a magnetic field, the direction of the magnetic field can be completed by modifying the direction of the current, and the magnetic force can be changed by modifying the magnitude of the current. Therefore, in the magnetic suspension adjusting assembly 11, one is a permanent magnet, the magnetic field direction is not limited, and the magnetic field direction of one is an electromagnet, and can be controlled according to the current direction. The two magnets form the magnetic suspension adjusting assembly 11, and can control the permanent magnet member 113 and the electromagnet member 114 to be in the same polarity repulsion or opposite polarity attraction, so that two forces are generated, wherein the force of the same polarity repulsion is mainly used for pushing the seat upwards, and the force of the opposite polarity attraction is mainly used for pulling the seat downwards.
When the vehicle is used, the recognition component 20 collects the information of the detected road front and feeds the information back to the control component 30, the control component 30 obtains how long the vehicle will pass through an uneven part of the road surface according to the information of the road front, the timing is grasped, and when the control component 30 judges that the vibration of the vehicle body is still transmitted to the seat after the vehicle body is filtered by the bounce self-adjustment amount, the electromagnet component 114 of the magnetic suspension adjusting component 11 is controlled to enable the seat to move up and down. That is, the vehicle body moves upward, the first adjustable sleeve 111 moves downward relative to the second adjustable sleeve 112; when the vehicle body moves downward, the first adjustable sleeve 111 moves upward relative to the second adjustable sleeve 112. The seat body can thus be maintained in a position which is substantially constant or slightly variable with respect to the height of the ground. Thereby achieving the comfort of the seat and reducing the jolt of the seat. The riding experience similar to a magic blanket is achieved.
Example 2
As shown in fig. 4, the vehicle seat apparatus is different from embodiment 1 in that a buffer member 10 includes a U-shaped slot motor 12, the U-shaped slot motor 12 includes a stator 122 and a mover 121 disposed on the stator 122, the mover 121 is connected to a seat bottom, the stator 122 is disposed on a vehicle body, and a control member 30 controls the U-shaped slot motor 12 to be lifted and lowered in a height direction of the vehicle.
Specifically, the U-slot motor 12 is a motor capable of directly moving linearly, and is a mechanism for converting electric power into mechanical energy of linear motion. The U-shaped groove motor 12 has high responsiveness, generates large and controllable force and is widely applied, and the principle of the invention is not explained. The mover 121 is fixed to a seat, and the stator 122 is fixed to a floor of a vehicle body, and controls the up and down movement of the mover 121 in the U-slot motor 12 to adjust the seat.
When the magic carpet is used, in order to achieve the effect that the seat is immovable relative to the ground, the U-shaped groove motor 12 below the seat actively extends and shortens in real time, when the vehicle body moves downwards, the rotor 121 of the U-shaped groove motor 12 moves, the U-shaped groove motor 12 is visually seen to be lengthened, and when the vehicle body moves upwards, the linear rotor 121 moves, and the vehicle looks electrically shortened. When the extension and shortening speed and the time of the U-shaped groove motor 12 are exactly synchronous with the downward movement and the upward jump of the vehicle body, the height of the seat relative to the ground is unchanged, and finally the comfortable effect is achieved.
According to another embodiment of the present invention, in the vehicle seat device disclosed in the embodiment of the present invention, the buffer member 10 further includes an elastic member 123, and one end of the elastic member 123 is fixedly connected to the seat and the other end is fixedly connected to the vehicle body.
Specifically, an elastic member 123 is added under the seat for supporting the seat and the weight of the human body. The resilient member 123 balances the weight of the seat plus the occupant when on a flat surface of the vehicle. For example, when the person and the seat weigh 100KG, the elastic member 123 is compressed by 1000N of gravity by half the stroke, for example, the length of the elastic member 123 is 80mm when the elastic member is not compressed, and 40mm after the elastic member is compressed by half. The elastic member 123 may be a spring.
When the automobile seat is used, the U-shaped groove motor 12 and the elastic member 123 under the seat extend and contract quickly and in real time, the elastic member 123 does not have the capacity of actively extending and contracting, the motion of the U-shaped groove motor 12 actively extends and contracts, when the automobile body moves downwards, the mover 121 of the U-shaped groove motor 12 moves, the U-shaped groove motor 12 pulls the elastic member 123 to be lengthened, and the relative distance between the seat and the automobile body is increased. In contrast, when the vehicle body moves up, the mover 121 moves downward, and at this time, the motor actively compresses the elastic member 123, the elastic member 123 is compressed, and the relative distance between the seat and the vehicle body becomes smaller. When the extension and shortening speed and the time of the U-shaped groove motor 12 are exactly synchronous with the downward movement and the upward jump of the vehicle body, the height of the seat relative to the ground is unchanged, and finally the comfortable effect is achieved.
While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more detailed description of the invention, taken in conjunction with the specific embodiments thereof, and that no limitation of the invention is intended thereby. Various changes in form and detail, including simple deductions or substitutions, may be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims (10)

1. An automobile seat device including a seat and a vehicle body, characterized by comprising:
a cushion member that is changeable in length in a height direction of the automobile and has one end connected to the seat and the other end connected to the vehicle body;
the identification component is arranged on the automobile body and used for monitoring road surface parameters in the advancing direction of the automobile and motion parameters of the automobile;
and the control component is connected with the identification component and the buffer component, and controls the length of the buffer component along the height direction of the automobile when the automobile passes through a road obstacle in real time according to the bouncing self-adjustment amount of the automobile body along the height direction, the road parameter and the motion parameter so as to counteract the vibration of the seat in the height direction of the automobile.
2. The car seat device according to claim 1, wherein the identification means includes a radar member and a camera member, and the road surface parameters include road surface obstacle position information and road surface flatness; wherein
The camera component carries out visual identification on the road surface condition so as to acquire the position information of the road surface obstacle;
the radar component detects the position of the road obstacle and acquires the road flatness.
3. The car seat arrangement according to claim 2, characterized in that the radar member and the camera member are provided at a front end of the car body, and the camera member is an ADAS camera, the radar member being a millimeter wave radar.
4. The car seat arrangement according to claim 2, wherein the motion parameters of the car comprise a driving speed and a steering wheel rotation angle of the car; and is
The identification component further comprises an automobile motion monitor, wherein the automobile motion monitor monitors the automobile running speed and the steering wheel rotation angle, and obtains automobile motion parameters according to the automobile running speed and the steering wheel rotation angle.
5. The car seat arrangement according to claim 4,
the control component presets monitoring points in at least one road obstacle according to the position information of the road obstacle, respectively obtains the road flatness of each monitoring point, obtains the vehicle body bounce amount when the vehicle passes through according to the road flatness of each monitoring point, and obtains deformation execution amount according to the difference between the vehicle body bounce amount and the bounce self-adjustment amount; and
the control component predicts the execution time of the automobile passing each monitoring point according to the running speed and the steering wheel rotating angle, and controls the buffer component to adjust the corresponding length at the execution time in real time by the deformation execution amount.
6. The car seat device according to claim 5, wherein the bouncing self-adjustment amount includes a suspension deformation amount and a tire deformation amount of the car body, wherein the control means acquires the suspension deformation amount and the tire deformation amount corresponding to the road surface obstacle from car body parameters including a tire load and a car weight.
7. The vehicle seat device according to claim 6, wherein a displacement sensor is provided on each suspension of the vehicle body, and the control unit obtains the tire load and the vehicle weight from a suspension vibration signal measured by the displacement sensor when the vehicle is stationary.
8. The car seat arrangement according to any one of claims 1 to 7, wherein the damping means comprises a plurality of magnetic levitation adjustment assemblies comprising a first adjustable sleeve, a second adjustable sleeve, a permanent magnet member and an electromagnet member; wherein
One end of the first adjustable sleeve is fixedly connected with the seat, the other end of the first adjustable sleeve is sleeved on the second adjustable sleeve, one end, far away from the first adjustable sleeve, of the second adjustable sleeve is fixedly connected with the automobile body, and the first adjustable sleeve can move along the height direction of the automobile relative to the second adjustable sleeve; and is
The permanent magnet component is fixedly arranged in the accommodating cavity in the first adjustable sleeve, the electromagnet component is fixedly arranged in the accommodating cavity in the second adjustable sleeve, and the permanent magnet component and the electromagnet component are arranged at intervals; and
the control component controls the electromagnet component to be electrified so as to change the magnetic force between the permanent magnet component and the electromagnet component and drive the first adjustable sleeve to change the relative distance relative to the second adjustable sleeve.
9. The car seat device according to any one of claims 1 to 7, wherein the buffer member includes a U-slot motor, the U-slot motor includes a stator and a mover provided on the stator, the mover is connected to the seat bottom, the stator is provided on the car body, and the control member controls the U-slot motor to be raised and lowered in a height direction of the car.
10. The car seat arrangement of claim 9, wherein the cushioning component further comprises an elastic member having one end fixedly connected to the seat and the other end fixedly connected to the car body.
CN202011542501.4A 2020-12-22 2020-12-22 Seat device for vehicle Pending CN112550090A (en)

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CN113799668A (en) * 2021-09-28 2021-12-17 东风商用车有限公司 Predictive driving vehicle seat adjustment method, device, system and storage medium
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CN113442803A (en) * 2021-06-25 2021-09-28 东风汽车集团股份有限公司 Vibration reduction seat and control method and device thereof
CN113799668A (en) * 2021-09-28 2021-12-17 东风商用车有限公司 Predictive driving vehicle seat adjustment method, device, system and storage medium
CN114851922A (en) * 2022-05-24 2022-08-05 中国第一汽车股份有限公司 Motion compensation type seat control system, operation method and seat adjusting method
CN114851922B (en) * 2022-05-24 2024-03-22 中国第一汽车股份有限公司 Motion-compensated seat control system, method of operation and method of adjustment of a seat

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Application publication date: 20210326