Automatic seat adjusting system and method for people to get on and off vehicle

Abstract

The invention relates to the technical field of position adjustment of vehicle seats, in particular to an automatic seat adjusting system and method for people to get on and off a vehicle. Wherein the system part comprises a seat translation mechanism, a seat rotating mechanism, a seat pressure sensor, a vehicle door switch sensor, a controller and a seat control switch, and the seat translation mechanism is installed on the rear row of a vehicle and comprises a track, a sliding seat and a translation driving device; the seat rotating mechanism is mounted on the sliding seat and comprises a rotating chassis and a rotating driving device; the translation driving device and the rotation driving device are electrically connected with the controller, and the seat pressure sensor, the vehicle door opening and closing sensor and the seat control switch are also electrically connected with the controller. The seat position can be automatically adjusted in the getting-on and getting-off process of people, and getting-on and getting-off convenience and safety are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of position adjustment of vehicle seats, and in particular to a system and method for automatically adjusting seats for people getting on and off a vehicle. Background Art

[0002] In vehicle use scenarios, seat adjustment convenience and space utilization efficiency when getting on and off the vehicle have always been important factors affecting the user experience. This is especially true in relatively compact vehicles such as minivans, RVs, and specialized commercial vehicles. Proper rear seat adjustment plays a key role in ensuring smooth entry and exit and a comfortable ride.

[0003] Although some vehicles on the market are currently equipped with a certain degree of seat adjustment, most have significant flaws. For one thing, many seat adjustments rely on manual operation. When people are in a hurry to get on and off the vehicle, manual adjustment is not only time-consuming and labor-intensive, but can also hinder people from getting in and out due to untimely operation, or even damage the seat due to improper force during operation. On the other hand, even though some vehicles have electric seat adjustment, the adjustment function is relatively simple, usually only able to achieve forward and backward movement or simple angle tilting. It is unable to automatically translate the seat to the appropriate position and rotate it to a certain angle to maximize the entry and exit space at the door according to the actual needs of people getting on and off the vehicle. Consequently, people still need to lean sideways or bend over when getting on and off the vehicle, which is extremely inconvenient. This is especially true for the elderly, pregnant women, or people with disabilities who have limited mobility.

[0004] Therefore, there is an urgent need for a new type of automatic seat adjustment system and method for people getting on and off the vehicle, which can provide an effective solution to the defects of the existing technology. Summary of the Invention

[0005] The object of the present invention is to provide a system and method for automatically adjusting seats for people getting on and off a vehicle, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An automatic seat adjustment system for people getting on and off a vehicle includes a seat translation mechanism, a seat rotation mechanism, a seat pressure sensor, a door switch sensor, a controller, and a seat control switch: the seat translation mechanism is installed in the rear row of the vehicle, and includes a track, a slide, and a translation drive device; the seat rotation mechanism is installed on the slide, and includes a rotating chassis and a rotation drive device; the translation drive device and the rotation drive device are electrically connected to the controller, and the seat pressure sensor, the door switch sensor, and the seat control switch are also electrically connected to the controller.

[0008] Furthermore, a proximity switch is provided at each of the front and rear ends of the track, and the proximity switch is electrically connected to the controller.

[0009] Furthermore, a pair of proximity switches is provided on the rotating chassis, the two proximity switches are spaced 60-90 degrees apart, and the proximity switches are electrically connected to the controller.

[0010] Furthermore, the translation drive device is driven by a motor and transmitted through a lead screw.

[0011] Furthermore, the rotation drive device is driven by an electric motor and is transmitted through a reduction gear set.

[0012] Furthermore, electromagnetic locks are provided at the starting and ending points of the track and the rotating chassis, and the electromagnetic locks are used to keep the seat stationary and fixed.

[0013] A method for automatically adjusting a seat for people getting on and off a vehicle comprises the following steps:

[0014] S1. The door switch sensor detects that the door is open and the seat pressure sensor does not sense an over-threshold pressure signal. The controller activates the translation drive, causing the seat to slide forward along the track to a preset rotation position. When the translation ends, the rotation drive activates, rotating the seat toward the door by a specified angle.

[0015] S2. When the seat pressure sensor detects a pressure signal exceeding a threshold, determining that a passenger is seated, and the door switch sensor detects that the door is closed, the controller controls the seat to rotate back to the normal position, and then the translation drive moves the seat rearward to the standard seating position.

[0016] S3. The door switch sensor detects that the door is open and the seat control switch triggers the exit control button. The controller activates the translation drive device, and the seat slides forward along the track to the preset rotation position. After reaching the translation end point, the rotation drive device is activated, and the seat rotates to a specific angle toward the door.

[0017] Furthermore, in S1-3, if resistance is encountered during translation or rotation, the machine stops immediately and retreats.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The automatic seat adjustment system for people getting on and off the vehicle of the present invention realizes automatic adjustment of the seat position during the process of getting on and off the vehicle through hardware and mechatronic control, which greatly improves the convenience of the process. At the same time, the design of electromagnetic locks and other designs enhances the static stability of the seat and ensures safe use.

[0020] 2. The automatic seat adjustment method for people getting on and off the vehicle of the present invention has clear operating steps, can automatically complete seat adjustment according to the door switch and seat pressure signal, and immediately stop and retreat when encountering resistance in translation or rotation, effectively improving the reliability and safety of seat adjustment and enhancing user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of an automatic seat adjustment system for people getting on and off a vehicle, when the seat moves to a position ready for getting on the vehicle;

[0022] Figure 2 This is a structural diagram of an automatic seat adjustment system for people getting on and off a vehicle when the seat retracts to the seating position;

[0023] Figure 3 A flowchart of the pre-boarding preparation phase of a method for automatically adjusting seats for boarding and alighting a vehicle;

[0024] Figure 4 A flowchart of the post-boarding reset phase of a method for automatically adjusting a seat for boarding and alighting a vehicle;

[0025] Figure 5 The present invention is a workflow diagram for the getting-off phase of a method for automatically adjusting seats for people getting on and off a vehicle. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example 1: Please refer to Figures 1 to 5 , an automatic seat adjustment system for people getting on and off the vehicle, including a seat translation mechanism, a seat rotation mechanism, a seat pressure sensor, a door switch sensor, a controller, and a seat control switch: the seat translation mechanism is installed in the rear row of the vehicle, including a track, a slide and a translation drive device; the seat rotation mechanism is installed on the slide, including a rotating chassis and a rotation drive device; the translation drive device and the rotation drive device are electrically connected to the controller, and the seat pressure sensor, the door switch sensor, and the seat control switch are also electrically connected to the controller.

[0028] A proximity switch is respectively provided at the front and rear ends of the track, and the proximity switch is electrically connected to the controller.

[0029] A pair of proximity switches is provided on the rotating chassis, the two proximity switches are spaced 60-90 degrees apart, and the proximity switches are electrically connected to the controller.

[0030] The translation drive device is driven by a motor and transmitted through a lead screw.

[0031] The rotary drive device is driven by an electric motor and transmitted through a reduction gear set.

[0032] Electromagnetic locks are installed at the starting and ending points of the track and the rotating chassis to keep the seat stationary and fixed.

[0033] Working principle of this embodiment:

[0034] In this embodiment, the seat's translation mechanism features a track fixed to the vehicle floor, providing guidance for forward and backward linear motion. A slide slides in tandem with the track, supporting the seat and its rotating mechanism. The translation drive utilizes a motor and lead screw transmission, offering high precision and self-locking anti-slip features. Proximity switches at each end of the track detect the seat's extreme translation positions (e.g., "boarding ready" and "passenger position") and provide feedback to the controller.

[0035] The seat rotation mechanism's rotating chassis is mounted on a sliding seat, integrating a rotating bearing and drive assembly. The rotation drive utilizes a motor and reduction gear set, providing high torque and low-speed rotation. Proximity switches (located on the rotating chassis, at intervals of 60-90 degrees (adjustable to specific values ​​based on vehicle model and user experience) detect rotation angles (e.g., "door-side rotation position" and "return to center position").

[0036] The controller (ECU) receives sensor signals (pressure, door status, proximity switches) to control the translation / rotation motors and electromagnetic locks. Locks are installed at the starting and ending points of the track and at key angles of the rotating chassis to enhance static stability (for example, preventing displacement during sudden braking) and prevent abnormal noise. This embodiment, through mechatronic intelligent control, significantly improves the convenience, safety, and reliability of seat adjustment, filling a functional gap in existing technology.

[0037] Example 2: Please refer to Figures 3-5 A method for automatically adjusting a seat for getting on and off a vehicle comprises the following steps:

[0038] S1. The door switch sensor detects that the door is open and the seat pressure sensor does not sense an over-threshold pressure signal. The controller activates the translation drive, causing the seat to slide forward along the track to a preset rotation position. When the translation ends, the rotation drive activates, rotating the seat toward the door by a specified angle.

[0039] This step is as Figure 3 The figure shows the preparation stage for the seat position before people get on the vehicle.

[0040] S2. When the seat pressure sensor detects a pressure signal exceeding a threshold, determining that a passenger is seated, and the door switch sensor detects that the door is closed, the controller controls the seat to rotate back to the normal position, and then the translation drive moves the seat rearward to the standard seating position.

[0041] This step is as Figure 4 The figure shows the stage of seat position restoration after the person sits down and closes the door.

[0042] S3. The door switch sensor detects that the door is open and the seat control switch triggers the exit control button. The controller activates the translation drive device, and the seat slides forward along the track to the preset rotation position. After reaching the translation end point, the rotation drive device is activated, and the seat rotates to a specific angle toward the door.

[0043] This step is as Figure 5 The figure shows the stage of seat position movement after the person triggers the seat control switch during the process of getting off the vehicle.

[0044] In S1-3, if resistance is encountered during translation or rotation, stop immediately and retreat.

Claims

1. An automatic seat adjustment system for people getting on and off a vehicle, characterized in that: Including seat translation mechanism, seat rotation mechanism, seat pressure sensor, door switch sensor, controller, seat control switch: The seat translation mechanism is installed in the rear row of the vehicle and includes a track, a slide seat and a translation drive device; The seat rotation mechanism is mounted on the slide and includes a rotating chassis and a rotating drive device; The translation drive device and the rotation drive device are electrically connected to the controller, and the seat pressure sensor, the door switch sensor, and the seat control switch are also electrically connected to the controller.

2. The automatic seat adjustment system for passengers getting on and off a vehicle according to claim 1, characterized in that: A proximity switch is respectively provided at the front and rear ends of the track, and the proximity switch is electrically connected to the controller.

3. The automatic seat adjustment system for passengers getting on and off a vehicle according to claim 1, characterized in that: A pair of proximity switches is provided on the rotating chassis, the two proximity switches are spaced 60-90 degrees apart, and the proximity switches are electrically connected to the controller.

4. The automatic seat adjustment system for passengers getting on and off a vehicle according to claim 1, characterized in that: The translation drive device is driven by a motor and transmitted through a lead screw.

5. The automatic seat adjustment system for passengers getting on and off a vehicle according to claim 1, characterized in that: The rotary drive device is driven by an electric motor and is transmitted through a reduction gear set.

6. The automatic seat adjustment system for passengers getting on and off a vehicle according to claim 1, characterized in that: Electromagnetic locks are provided on the starting and ending points of the track and the rotating chassis, and the electromagnetic locks are used to keep the seat stationary and fixed.

7. A method for automatically adjusting a seat for getting on and off a vehicle, applicable to the automatic adjustment system for getting on and off a vehicle as claimed in any one of claims 1 to 6, characterized in that: The steps include: S1. The door switch sensor detects that the door is open and the seat pressure sensor does not sense an over-threshold pressure signal. The controller activates the translation drive, causing the seat to slide forward along the track to a preset rotation position. When the translation ends, the rotation drive activates, rotating the seat toward the door by a specified angle. S2. When the seat pressure sensor detects a pressure signal exceeding a threshold, determining that a passenger is seated, and the door switch sensor detects that the door is closed, the controller controls the seat to rotate back to the normal position, and then the translation drive moves the seat rearward to the standard seating position. S3. The door switch sensor detects that the door is open and the seat control switch triggers the exit control button. The controller activates the translation drive device, and the seat slides forward along the track to the preset rotation position. After reaching the translation end point, the rotation drive device is activated, and the seat rotates to a specific angle toward the door.

8. The method for automatically adjusting a seat for getting on and off a vehicle according to claim 7, characterized in that: In S1-3, if resistance is encountered during translation or rotation, the vehicle stops immediately and moves back.

Images