CN102923024A - Automobile fully autonomous seating system and method of implementation thereof - Google Patents

Abstract

The present invention relates to a vehicle all-autonomous seat system and a method for implementing the same, which are intended to reduce discomfort of an occupant in a vehicle due to centrifugal force caused by turning of the vehicle. The vehicle all-automatic seat system comprises a lane prediction unit, a control unit and a seat adjusting unit. The lane prediction unit is used for acquiring lane information in front of the vehicle. The control unit is used for calculating the centrifugal force applied to a passenger on a certain seat of the vehicle after a preset time according to the lane information and the seat inclination angle required by the seat for reducing or offsetting the centrifugal force. The seat adjusting unit is used for adjusting the seat to incline to the seat inclination angle after the preset time, so that the passenger is reduced or not influenced by centrifugal force.

Description

Automobile fully autonomous seating system and method of implementation thereof

technical field

The present invention relates to a seat system, in particular to a vehicle fully autonomous seat system and its implementation method.

Background technique

When the vehicle is driving through a curve, the centrifugal force generated by various factors such as deceleration, turning, and acceleration often causes the passenger's center of gravity to be unstable, and the passenger is thrown forward, outward and/or backward, causing the body to shake And cause feeling and vision to be different, and cause motion sickness phenomenon.

At present, the traditional ways to prevent passengers from motion sickness include looking out the window, opening the window, taking motion sickness medicine in advance, sleeping, imagining yourself as a driver, and so on. In the above methods, taking motion sickness medicine in advance is generally a more effective preventive method, but it must be prepared first, so it is more troublesome, and the effect of other methods is not significant.

Today, humans lack effective prevention and restraint methods for motion sickness. The pain caused by motion sickness makes many people afraid of long-distance driving or long-distance travel by car. Currently, there is still a lack of effective methods for preventing and restraining motion sickness.

Therefore, we need an effective method for preventing motion sickness.

Contents of the invention

The first object of the present invention is to provide a fully autonomous seat system for a vehicle, which can change the tilt angle of the seat and shift the passenger's center of gravity, thereby reducing or completely offsetting the centrifugal force when the vehicle is turning.

In order to achieve the above purpose, the present invention provides a fully autonomous vehicle seat system, which includes a lane prediction unit, a control unit and a seat adjustment unit. The lane prediction unit is used to obtain lane information ahead of the vehicle. The control unit is electrically connected to the lane prediction unit, so as to calculate, according to the lane information, the centrifugal force suffered by a passenger on a certain seat in the vehicle after a predetermined time, and calculate to reduce or completely offset The seat tilt angle required by the centrifugal force suffered by the passenger after the predetermined time. The seat adjustment unit is electrically connected to the control unit for adjusting the seat to tilt to the seat tilt angle after the predetermined time.

The second object of the present invention is to provide an execution method of the above-mentioned vehicle fully autonomous seat system, the vehicle fully autonomous seat system comprising: a lane prediction unit, a control unit electrically connected to the lane prediction unit, And a seat adjustment unit electrically connected to the control unit, the execution method includes:

The lane prediction unit can acquire lane information ahead of the vehicle;

The control unit calculates, according to the lane information, the centrifugal force borne by a passenger on a certain seat of the vehicle after a predetermined time, and calculates to reduce or completely offset the centrifugal force borne by the passenger after the predetermined time the desired seat recline angle; and

The seat adjustment unit is used to adjust the seat to tilt to the seat tilt angle after the predetermined time.

The vehicle fully autonomous seat system and its implementation method of the present invention, by predicting the centrifugal force that the passengers on the seat will bear after a predetermined time, and calculating the seat required to overcome the centrifugal force after the predetermined time The seat is tilted at an angle so that the passenger reduces or even does not feel the centrifugal force, so that motion sickness will not occur.

Description of drawings

The present invention is described in detail below in conjunction with accompanying drawing and specific embodiment;

Fig. 1 is a schematic diagram of a vehicle fully autonomous seat system according to a first embodiment of the present invention;

Fig. 2 is the flow chart of the implementation method of the vehicle fully autonomous seat system according to the present invention;

in:

10 Lane prediction unit

12 Control Unit

14 Seat adjustment unit

20 Vehicles

22 seat

30 Lane boundary

40 passengers

S200-S220 Steps.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

Please refer to FIG. 1 . FIG. 1 is a schematic diagram of a vehicle fully autonomous seat system according to a first embodiment of the present invention. The vehicle fully autonomous seat system includes a lane prediction unit 10 , a control unit 12 and a seat adjustment unit 14 . The lane prediction unit 10 is used to acquire lane information ahead of the vehicle 20 . The control unit 12 is electrically connected to the lane prediction unit 10, and is used to calculate, according to the lane information, after a predetermined time (for example, after 1 second), what the passenger 40 on the seat 22 of the vehicle 20 bears and calculate the seat tilt angle required to reduce or completely offset the centrifugal force suffered by the passenger 40 after 1 second. The seat adjustment unit 14 is electrically connected to the control unit 12 to adjust the seat 22 to the seat inclination angle after 1 second, and reduce or completely counteract the centrifugal force. It should be noted that, in this embodiment, the seat 22 is the passenger seat on the right side of the driver's seat. In other embodiments, the seat 22 can be any seat in the vehicle 20 .

The lane information acquired by the lane prediction unit 10 includes the lane boundary 30 in front of the vehicle 20 , which is used as a basis for the control unit 12 to calculate the lane curvature. In one embodiment, the lane prediction unit 10 includes at least one camera (not shown), which can be set on the vehicle 20 at a position capable of recording the front road boundary 30, such as above the license plate. At least one camera can record the image in front of the vehicle 20 in real time, and judge the lane boundary 30 in front of the vehicle 20 according to the captured image and send it to the control unit 12 . In another embodiment, the lane prediction unit 10 includes a global positioning system (Global Positioning System, GPS, not shown), and the map provided by the global positioning system (not shown), to calculate the vehicle 20 The lane boundary 30 of the traffic lane is passed and transmitted to the control unit 12 .

It should be noted that when an object with a mass of m turns on a road with a radius of curvature R at a constant tangential velocity V, the centrifugal force F it experiences is equal to mV ² /R. Therefore, when the speed V of the vehicle 20 is faster or the road is more curved (that is, R is smaller), the centrifugal force experienced by the passenger 40 is greater.

After the control unit 12 receives the lane information including the lane boundary 30 provided by the lane prediction unit 10, it will calculate the lane curvature after 1 second according to the lane information, and then calculate the lane curvature according to the calculated lane boundary 30. Curvature and current vehicle speed, to calculate the size and direction of the predicted centrifugal force of the passenger 40 on the seat 22 after 1 second, wherein the centrifugal force borne by the passenger 40 on the seat 22 after 1 second is the same as that after 1 second The curvature of the lane is directly proportional to the current vehicle speed, that is to say, the greater the curvature of the lane, the greater the centrifugal force, and the greater the current speed, the greater the centrifugal force. When the passenger 40 on the seat 22 feels the centrifugal force, the seat adjustment unit 14 inclines the seat 22 moderately so that the center of gravity of the passenger 40 is shifted to the inner side of the upper vertical line at the center of the bottom of the seat 22. The shifted center of gravity will cause the center of gravity of the upper body of the passenger 40 to generate a centripetal force to reduce or completely counteract the centrifugal force caused by the turning of the vehicle 20 .

The different upper body heights of the passenger 40 will have different contact areas with the seat back of the seat 22, and thus produce different frictional forces, which will cause a slight change in the centrifugal force suffered by the passenger 40 on the seat 22, resulting in a A slight difference in the desired seat recline angle. The inclination angle of the seat is proportional to the centrifugal force and the upper body height of the passenger 40 on the seat 22, that is, when the upper body height of the passenger 40 on the seat 22 is higher, it will contact the seat back. The percentage of the relative area of the seat will be reduced, and the percentage of the friction between the seat back and the body relative to the weight of the upper body of the passenger will also be reduced. At this time, the centrifugal force borne by the upper body of the passenger 40 will be greater, and the seat tilt required to counteract the centrifugal force The angle is also larger. In order to simplify the complexity of the system and reduce the need to actively detect or manually input the program of the upper body height, it can be assumed that the passengers 40 are all adults, and their upper body height is a fixed value, so as to simplify the calculation process of centrifugal force and seat tilt angle. After the control unit 12 calculates the required seat inclination angle, it will transmit the information of the seat inclination angle to the seat adjustment unit 14, so that the seat adjustment unit 14 can adjust the seat inclination angle accordingly. The seat 22 is adjusted to the seat inclination angle after 1 second, so as to reduce or completely offset the centrifugal force borne by the passenger 40 on the seat 22 of the vehicle 20 after 1 second, and make the seat The upper body of the passenger 40 on the 22 reduces or even does not feel the sensation that the body caused by the centrifugal force is thrown when turning, thereby reducing or eliminating the key factors causing motion sickness.

In the above embodiment, the control unit 12 calculates the centrifugal force that the passenger 40 on the seat 22 will bear in 1 second according to the lane curvature and the current vehicle speed in 1 second. However, according to statistical data, most drivers will decelerate first when encountering a turn, so if the influence of deceleration within 1 second is considered, the centrifugal force after 1 second can be calculated more accurately.

In order to consider the impact of deceleration, in another embodiment, the control unit 12 calculates the speed of the passenger 40 on the seat 22 in 1 second based on the calculated lane curvature after 1 second and the predicted vehicle speed after 1 second. Centrifugal force afterward. The centrifugal force suffered by the passenger 40 on the seat 22 after 1 second is directly proportional to the curvature of the lane after 1 second and the predicted vehicle speed after 1 second.

In yet another embodiment, it can further calculate the vehicle speed after 1 second according to the real-time braking information, and then calculate the centrifugal force that the passenger 40 on the seat 22 will bear after 1 second. At this time, the The centrifugal force suffered by the passenger 40 on the seat 22 after 1 second is related to the curvature of the lane after 1 second and the predicted vehicle speed after 1 second based on the current vehicle speed and the real-time braking information. The above brake information refers to the magnitude and speed of depressing the brake pedal, which can be used to estimate the change of the vehicle speed, and can be used to correct the predicted vehicle speed.

The above-mentioned predicted vehicle speed after 1 second refers to the speed per hour after the driver decelerates the vehicle 20 when he encounters a turn, which can be based on most of the deceleration levels obtained from statistics. The speed of the vehicle is 60 kilometers per hour. When the lane 30 20 meters ahead of the vehicle 20 has a certain radius of curvature turning, it can be known from statistics that most drivers will reduce the speed of the vehicle by 10 kilometers per hour after 1 second. km, so the predicted speed after 1 second is 50 km/h. In addition, real-time braking information can be provided by the brakes (not shown) of the vehicle 20, so that it can reflect the real braking situation of the vehicle 20, and enable it to more accurately calculate the predicted vehicle speed after 1 second .

Then the control unit 12 calculates the seat inclination angle needed to offset the centrifugal force after 1 second according to the calculated centrifugal force and the upper body height of the passenger 40, the seat inclination angle is related to the centrifugal force and the seat inclination angle. The height of the upper body of the passenger 40 on the seat 22 is proportional. Finally, the control unit 12 can transmit the information of the seat inclination angle to the seat adjustment unit 14, so that the seat adjustment unit 14 can adjust the inclination of the seat 22 after 1 second. to the inclination angle of the seat, thereby counteracting the centrifugal force of the passenger 40 on the seat 22 after 1 second. In actual operation, for the convenience and simplicity of the control of the seat adjustment unit 14, it is also possible to choose to reduce but not completely offset the centrifugal force, and the control unit 12 transmits the information of the moderately corrected seat inclination angle to the The seat adjustment unit 14, so that the seat adjustment unit 14 can adjust the seat 22 to the moderately corrected seat inclination angle after 1 second, thereby lowering the passenger 40 on the seat 22 Centrifugal force after 1 second.

It should be noted that the predetermined time is not limited to 1 second, and it can be adjusted according to actual needs, for example, referring to the time required for the calculation of the lane curvature by the lane prediction unit 10 and the seat adjustment unit 14 to control the seat 22 to the time required to book the angle of inclination and other factors to adjust.

Please refer to FIG. 2 . FIG. 2 is a flow chart of an execution method of a vehicle fully autonomous seat system according to the present invention. The fully autonomous seat system includes a lane prediction unit and a control unit electrically connected to the lane prediction unit. , and a seat adjustment unit electrically connected to the control unit, the implementation method includes the following steps.

In step S200, the lane prediction unit acquires lane information in front of the vehicle, wherein the lane information includes lane information or boundaries in front of the vehicle, which is used as a reference for the control unit to calculate lane curvature. in accordance with.

In step S210, the control unit calculates, according to the lane information, the centrifugal force borne by a passenger on a certain seat of the vehicle after a predetermined time, and calculates to reduce or completely offset the centrifugal force after the predetermined time. The centrifugal force suffered by the passenger, the required seat tilt angle.

In one embodiment, the control unit calculates the centrifugal force suffered by the passengers on the seat after the predetermined time according to the lane curvature and the current vehicle speed after the predetermined time, wherein at the predetermined time The centrifugal force of the seat is proportional to the curvature of the lane after the predetermined time and the current vehicle speed.

In order to consider the influence of deceleration when turning, in another embodiment, the control unit calculates The centrifugal force experienced by the occupant of the seat. After the predetermined time, the centrifugal force experienced by the passengers on the seat is proportional to the curvature of the lane and the predicted vehicle speed after the predetermined time.

In yet another embodiment, it can further calculate the vehicle speed after the predetermined time according to the real-time braking information, and then calculate the centrifugal force suffered by the passengers on the seat, so after the predetermined time, the The centrifugal force suffered by the passenger on the seat is related to the curvature of the lane after the predetermined time and the predicted vehicle speed after the predetermined time based on the current vehicle speed and the real-time braking information. The above braking information refers to the magnitude and speed of depressing the brake pedal, which can be used to estimate the change of the vehicle speed, and can be used to correct the predicted vehicle speed.

After calculating the centrifugal force borne by the passenger on the seat, the control unit will calculate the seat inclination angle according to the centrifugal force and the upper body height of the passenger on the seat, wherein the seat inclination angle is It is proportional to the centrifugal force and the upper body height of the passenger on the seat.

In step S220, after the predetermined time, the seat adjustment unit adjusts the seat to the seat tilt angle to reduce or completely counteract the centrifugal force, and make the passengers on the seat turn The feeling of body shaking caused by centrifugal force can be reduced or not felt at all times, thus eliminating the condition that causes motion sickness.

The vehicle fully autonomous seat system and its implementation method of the present invention predict the centrifugal force of the occupant on the seat after a predetermined time, and calculate the seat after the predetermined time, in order to reduce or completely overcome the upper The seat inclination angle required by the centrifugal force of the passenger, in other words, the present invention does not adjust the seat after the centrifugal force occurs, but just adjusts the seat inclination to the seat inclination angle at the moment the centrifugal force will occur to reduce or completely Counteracting the centrifugal force, there is no time difference between the two, and thereby eliminates the situation that makes passengers motion sick.

In summary, although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Those with ordinary knowledge in the technical field of the present invention can, without departing from the spirit and scope of the present invention, Various changes and modifications are made, so the scope of protection of the present invention should be defined by the scope of the appended patent application.

Claims (10)

1. A fully autonomous seat system for a vehicle, characterized in that it comprises: A lane prediction unit, used to obtain lane information ahead of the vehicle; A control unit, electrically connected to the lane prediction unit, the control unit calculates the centrifugal force suffered by a passenger on a certain seat of the vehicle after a predetermined time according to the lane information, and calculates the reduction or complete resistance the seat recline angle required for the centrifugal force experienced by the occupant after said predetermined time; and A seat adjustment unit is electrically connected to the control unit, and the seat adjustment unit adjusts the seat to the seat inclination angle after the predetermined time. 2. The system of claim 1, wherein the lane prediction unit comprises at least one camera. 3. The system of claim 1, wherein the lane prediction unit comprises a global positioning system. 4. The system according to claim 1, wherein the control unit calculates the load on the passenger seat after the predetermined time according to the curvature of the lane after the predetermined time and the current vehicle speed. centrifugal force. 5 . The system according to claim 1 , wherein the control unit calculates the seat distance after the predetermined time based on the lane curvature after the predetermined time and the predicted vehicle speed after the predetermined time. The centrifugal force experienced by the passengers on board. 6. The system according to claim 1, wherein the control unit calculates the centrifugal force borne by the passenger on the seat according to the height of the passenger's upper body. 7. An execution method of a vehicle fully autonomous seat system, said vehicle fully autonomous seat system comprising a lane predicting unit, a control unit electrically connected to said lane predicting unit, and a control unit electrically connected to said lane predicting unit The seat adjustment unit of the control unit is characterized in that the execution method includes: The lane prediction unit can obtain lane information in front of the vehicle; The control unit calculates the centrifugal force borne by a passenger on a certain seat of the vehicle after a predetermined time according to the lane information, and calculates to reduce or completely offset the centrifugal force borne by the passenger after the predetermined time. Seat tilt angle required for centrifugal force; and The seat adjustment unit will adjust and tilt the seat to the seat tilt angle after the predetermined time. 8. The execution method according to claim 7, wherein the control unit calculates the number of passengers on the seat after the predetermined time according to the lane curvature and the current vehicle speed after the predetermined time centrifugal force. 9. The execution method according to claim 7, wherein the control unit calculates the vehicle speed after the predetermined time according to the lane curvature after the predetermined time and the predicted vehicle speed after the predetermined time. The centrifugal force experienced by the occupants of the seat. 10 . The execution method according to claim 7 , wherein the control unit calculates the centrifugal force borne by the passenger on the seat according to the height of the passenger's upper body. 11 .

Images