A body weight measurement system for a vehicle and a vehicle

Abstract

The present disclosure provides a body weight measurement system for a vehicle and a vehicle, the system comprising a seat frame and a slide rail, the seat frame moving along the slide rail, the slide rail being provided with a groove structure; and a sensor, the sensor being arranged in the groove structure, the sensor being configured to detect the body weight of a passenger when the seat frame moves to a measurement position, the measurement position being a position where the groove structure is located. Thus, the present scheme does not need to additionally increase the mechanical structure, has low cost, and can be adapted to various different vehicle models. Meanwhile, the structure of the present scheme is simple, the body weight measurement sensitivity is high, and the body weight measurement system is not easy to be damaged.

Description

Technical Field

[0001] This disclosure relates to the field of intelligent vehicle technology, and more particularly to a weight measurement system for vehicles and a vehicle. Background Technology

[0002] With the continuous advancement of automotive technology, the demand for diverse operations within vehicles is also increasing. Monitoring and managing a user's weight through the vehicle is one such example.

[0003] There are related technologies that include solutions for measuring a user's weight inside a vehicle. For example... Figure 1 As shown, this technical solution allows the seat (1) to recline around a pivotable support point (S) to reach a measurement position, with a pressure sensor (2) positioned at the support point. In this measurement position, the average center of gravity (W) of the seat and passenger is directly above the pressure sensor. However, to achieve weight measurement in this manner, the front support point (S) must use an unlockable locking device (i.e., in weight measurement mode, the front support point is disconnected from the vehicle body). This requires a motor with a large torque to drive the entire seat, including the occupant, to rotate around the pivotable support point (S). This solution not only requires an additional locking device for the front support point but also an additional high-torque motor, significantly increasing the installation cost. Utility Model Content

[0004] This disclosure aims to address at least one of the technical problems existing in the prior art. To this end, this disclosure proposes a weight measurement system and a vehicle for use in vehicles. The system includes a seat frame and a slide rail, along which the seat frame moves. A groove structure is formed in the slide rail. A sensor is disposed within the groove structure and configured to detect the passenger's weight when the seat frame moves to a measurement position, which is the location of the groove structure. Thus, this solution does not require additional mechanical structures, has lower costs, and is adaptable to various vehicle models. Furthermore, this solution has a simple structure, high weight measurement sensitivity, and is not easily damaged.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] In a first aspect, this application provides a weight measurement system for a vehicle, comprising: a seat frame and a slide rail, the seat frame moving along the slide rail having a groove structure thereon; and a sensor disposed within the groove structure, the sensor being configured to detect the weight of a passenger when the seat frame moves to a measurement position, the measurement position being the location of the groove structure.

[0007] Therefore, this solution does not require additional mechanical structures, has a lower cost, and can be adapted to various vehicle models. Furthermore, the solution has a simple structure, high sensitivity in weight measurement, and is not easily damaged.

[0008] In some embodiments of this application, the groove structure is located on the back of the slide rail, and the groove structure is close to the rear of the vehicle.

[0009] In some embodiments of this application, the groove structure is a rectangular groove, or a cantilever beam structure is formed at the groove structure.

[0010] In some embodiments of this application, the sensor is attached to the groove structure.

[0011] In some embodiments of this application, the slide rail includes two slide rails, each slide rail having at least two groove structures. The distance between the two groove structures on the first slide rail is equal to the distance between the two groove structures on the second slide rail, and a sensor is provided in each groove structure.

[0012] In some embodiments of this application, pulleys are provided at the four corners of the bottom of the seat frame, and the seat frame moves on the slide rail via the pulleys. When it moves to the measurement position, the pulleys at the four corners are located directly above the groove structure.

[0013] In some embodiments of this application, the system further includes a controller and a motor, the controller being configured to drive the motor to move the seat to the measuring position.

[0014] In some embodiments of this application, the system further includes: a display control panel connected to the controller; when a passenger selects a weight measurement option on the display control panel, the controller is configured to drive the motor to move the seat to the measurement position and display the passenger's weight on the display control panel.

[0015] In some embodiments of this application, when the vehicle is moving, the controller is configured to drive the motor to move the seat to a non-measuring position.

[0016] In some embodiments of this application, when a passenger selects the weight measurement option on the display control panel while the vehicle is in motion, the controller is configured to output a reminder message on the display control panel, the reminder message indicating that the vehicle is in motion and is not suitable for weight measurement.

[0017] In some embodiments of this application, when the seat is being used for weight measurement or is being moved to the measurement position, if the vehicle starts moving, the controller is configured to drive the motor to move the seat to a non-measurement position and output the reminder information through the display control panel.

[0018] In some embodiments of this application, when the vehicle is on a slope, the controller is configured to correct the weight measurement results according to the angle of the slope.

[0019] In some embodiments of this application, the controller is further configured to adjust the angles of the seat back and leg rest so that the difference between the largest and smallest force values ​​among the data collected by the four sensors is greater than a set value, and output the weight measurement result on the display control panel.

[0020] Secondly, this application provides a vehicle including the system described in the first aspect.

[0021] The advantages and control methods of the vehicle and electronic equipment compared to the prior art are the same, and will not be elaborated here.

[0022] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0025] Figure 1 This is a schematic diagram of an existing weight measurement device.

[0026] Figure 2 This is a schematic diagram of the structure of a weight measurement system at the measurement position according to an embodiment of the present disclosure;

[0027] Figure 3 This is a schematic diagram of the structure of the weight measurement system provided in the embodiments of this disclosure at a non-measuring position.

[0028] Figure 4A cross-sectional view of a slide rail for a weight measurement system provided in an embodiment of this disclosure;

[0029] Figure 5 A cross-sectional view of the slide rail of another weight measurement system provided in an embodiment of this disclosure;

[0030] Figure 6 This is a schematic diagram of another weight measurement system provided in an embodiment of the present disclosure.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1-Seat frame, 2-Slide rail, 3-Sensor, 4-Pulley, 5-Controller, 6-Display control panel. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0034] In related technologies, solutions for implementing weight measurement on vehicles have the problem of requiring additional mechanical structures and high-torque motors, resulting in high installation costs.

[0035] Therefore, this disclosure proposes a weight measurement system and vehicle for use in vehicles. The system includes a seat frame and a slide rail, the seat frame moving along the slide rail, the slide rail having a groove structure; and a sensor disposed within the groove structure. The sensor is configured to detect the passenger's weight when the seat frame moves to a measurement position, which is the location of the groove structure. Thus, this solution does not require additional mechanical structures, has lower costs, and is adaptable to various vehicle models. Furthermore, this solution has a simple structure, high weight measurement sensitivity, and is not easily damaged.

[0036] The following will combine Figures 2-6 The contents of this disclosure will be further explained in detail.

[0037] like Figure 2-6 As shown, this disclosure provides a weight measurement system for a vehicle. The system includes a seat frame 1 and a slide rail 2, the seat frame 1 moving along the slide rail 2, the slide rail 2 having a groove structure; and a sensor 3 disposed within the groove structure. The sensor 3 is configured to detect the passenger's weight when the seat frame 1 moves to a measurement position, the measurement position being the location of the groove structure.

[0038] For example, the sensors mentioned above include, but are not limited to, strain sensors and pressure sensors.

[0039] In the above embodiments, the sensor is placed in a locally thinned area of ​​the slide rail body (i.e., the corresponding position of the groove structure), so that the slide rail forms a controllable stress concentration area in the vertical direction. This maintains the overall structural rigidity to meet collision safety requirements while significantly improving strain response sensitivity. This solution does not require the addition of an independent weighing module or additional mechanical structures, does not increase the weight of the seat, and does not change the original assembly process, achieving non-invasive weight sensing.

[0040] In some embodiments, the groove structure is located on the back of the slide rail 2, near the rear of the vehicle. This design, by placing the groove structure at the end of the slide rail, effectively prevents sensor damage caused by foreign object scratches, dust accumulation, or maintenance operations during daily use, and does not affect the normal movement of the seat on the slide rail. For example, the groove structure can be positioned at 1 / 4 to 1 / 3 of the slide rail's rear end length, corresponding to the seat's maximum rearward position. This position is the most stable area for the occupant's center of gravity, promoting even load distribution. Simultaneously, this arrangement is away from the frontal collision energy absorption zone, preventing impact on the sensors from slide rail deformation during a frontal collision and improving structural safety.

[0041] In some embodiments, the groove structure described above is a rectangular groove, or a cantilever beam structure is formed at the groove structure. For example, the rectangular groove structure has a depth of 50% to 70% of the slide rail wall thickness, a width of 1.2 times the pulley contact width, and a length extending 20 to 40 mm along the longitudinal direction of the slide rail. It is suitable for steel slide rails, mass-produced by stamping forming process, and has high linearity of strain response (R²>0.99). The cantilever beam structure is formed by CNC milling a thin-walled beam with one end fixed and the other end free on the back of the slide rail. The beam width is the same as the pulley width, and the thickness is reduced to 30% to 40% of the original wall thickness. Support ribs are retained at both ends to form a highly sensitive elastomer. Under the same load, the strain is increased by about 40% compared to the rectangular groove, which is suitable for lightweight aluminum alloy slide rails and significantly improves the signal-to-noise ratio. A cantilever beam structure is formed at the groove structure described above. The stiffness of this structure is compared to... Figure 3 The slotted structure is smaller than that of the standard structure, meaning it is more sensitive. For weight measurement, this slotted structure is not limited to a specific design. In actual design, as long as the guide rail at the slot has sufficient strength to prevent damage from occupants sitting or using the vehicle in a static state, or its stiffness is sufficiently low without the slot to meet the requirements of the strain sensor and measurement range, it is acceptable.

[0042] The embodiments of this disclosure utilize a slotted structure to reduce the stiffness of the slide rail at its location, thereby increasing the sensitivity of weight measurement. This improves the accuracy of weight measurement and reduces the impact of zero-point drift on measurement accuracy. For achieving the weight measurement function, this slotted structure is not limited to a specific design. In actual design, as long as the guide rail at the slot has sufficient strength to prevent damage from occupants riding or using the vehicle in a static state, or its stiffness is sufficiently low without the slot to meet the measurement range of the strain sensor and measurement circuit, it is acceptable.

[0043] In some embodiments, the sensor 3 described above is adhered within the groove structure. The sensor is a biaxial patch-type metal foil strain gauge, adhered to the center of the groove bottom. The adhesive layer is a highly elastic epoxy resin, with an elastic modulus of 1.2 GPa after curing, ensuring complete strain transmission without hysteresis. Before adhesion, the groove bottom is sandblasted to a roughness Ra ≤ 1.6 μm to improve adhesion strength. The sensor leads are routed along the inner wall of the slide rail and secured with insulating clips to avoid interference with the moving parts of the pulley. To prevent moisture corrosion, the adhesion area is potted with a 0.5 mm thick silicone rubber sealant, achieving an IP67 waterproof and dustproof rating.

[0044] In some preferred embodiments, the slide rail 2 comprises two rails, each with at least two slot structures. The distance between the two slot structures on the first slide rail is equal to the distance between the two slot structures on the second slide rail. A sensor 3 is installed in each slot structure. In the dual-slide rail system, each slide rail 2 has two slot structures: the distance between the two slots is strictly consistent with the wheelbase of the seat rollers, ensuring that when the seat moves to any slot position, all four rollers can accurately align with the slot structure. The tolerance between the slot structures of the two slide rails is ≤0.5mm, ensuring that the seat remains horizontal during forward and backward movement and avoiding uneven load distribution due to tilting, which could affect measurement accuracy. The signals from the four sensors are differentially amplified and then averaged to suppress the risk of single-point failure, improve system redundancy, and enhance reliability.

[0045] In some embodiments, pulleys 4 are respectively provided at the four corners of the bottom of the seat frame 1. The seat frame 1 moves on the slide rail 2 via the pulleys 4. When it moves to the measurement position, the pulleys 4 at the four corners are located directly above the groove structure. For example, each of the four corners of the seat frame is provided with a high-precision polyurethane-coated pulley with a diameter of 35mm and a wheel surface width of 18mm. The clearance between the pulley and the slide rail is ≤0.3mm to ensure smooth movement without lateral deviation. When the controller drives the motor to move the seat to the measurement position, the center of the pulley coincides with the center of the groove structure in the vertical direction, and the pulley axis is parallel to the long axis of the groove structure, so that the weight load is vertically transmitted to the groove area along the pulley axis, maximizing the strain response. In the cantilever beam structure, the pulley contact point is located directly above the free end of the beam, so that the beam generates the maximum bending moment and improves the sensitivity; in the rectangular groove structure, the pulley contact area covers the center section of the groove length, ensuring uniform load distribution and avoiding local stress concentration that could cause sensor overload.

[0046] Further optional features of the above system include: controller 5 and motor, controller 5 being configured to drive the motor to move the seat to the measurement position.

[0047] For example, the aforementioned controller is an in-vehicle domain controller or an independent ECU, integrating a high-precision ADC module, temperature compensation algorithm, and motion control logic. The controller receives feedback from the motor encoder via the CAN bus and controls a stepper motor or brushless DC motor to drive the seat to slide, with a positioning speed ≤50mm / s to ensure smooth, shock-free operation. When the system is powered on or a user triggers a measurement command, the controller first performs a self-test: checking if the four sensors are online, if the zero point is within the allowable range, and if the slide rail is unobstructed. After confirming everything is correct, the controller starts the motor, slowly moving the seat to the measurement position, pausing for 2 seconds to stabilize the load, collecting sensor data, and outputting the weight value after temperature compensation and multi-point linear calibration. This process requires no user intervention, avoiding human error. The motor drive circuit has overcurrent and overheat protection to prevent damage to the mechanism due to jamming. The system can still operate when the vehicle is off, powered by the battery, without affecting the overall vehicle electrical architecture.

[0048] like Figure 6 As shown, this solution uses strain sensors 1-4 to collect electrical signals at corresponding locations. After processing by the controller 5, the passenger's weight is displayed on the display control panel 6 for the user to view. Furthermore, passengers can also activate the weight measurement function by operating the display control panel.

[0049] The signal processing process of the aforementioned controller is as follows: This solution also includes a measurement circuit in its hardware implementation. The measurement circuit is based on the Wheatstone bridge principle, connecting four strain gauges (i.e., the strain sensors mentioned above) to the four arms of the bridge. Its core function is to convert minute mechanical strain into a measurable voltage signal through the resistive strain effect of the strain gauges. Before operation, the bridge satisfies the equilibrium condition (the resistance relationship of the four arms is R1R3 = R2R4), at which point the output voltage is zero. During measurement, the strain gauges in two opposite arms are subjected to tension (increased resistance) along with the measured object, while the other two opposite arms are subjected to compression (decreased resistance), causing the resistance changes of the four gauges to be opposite to each other. This arrangement maximizes the bridge output voltage, and its output value is proportional to the strain difference between the four strain gauges, thus accurately reflecting the deformation of the structure. This circuit not only has a much higher sensitivity than single-arm and half-bridge circuits, enabling clearer capture of minute strains, but also effectively counteracts the interference of temperature changes on the measurement results through reasonable strain gauge arrangement (e.g., placing the compensation gauge and the working gauge in the same temperature environment).

[0050] In some embodiments, the system further includes: a display control panel 6 connected to the controller 5; when a passenger selects the weight measurement option on the display control panel 6, the controller 5 is configured to drive a motor to move the seat to the measurement position and display the passenger's weight on the display control panel 6.

[0051] For example, the aforementioned display and control panel is integrated into the central control screen or located in the touch area on the side of the seat. The interface provides an entry point for the "Weight Measurement" function, with an icon resembling a body scale. Clicking it brings up a safety prompt: "Please ensure the vehicle is stationary and sit firmly before starting the measurement." Upon receiving the instruction, the controller first checks the vehicle speed signal: if it is non-zero, a reminder is triggered; if it is zero, the automatic seat movement process is initiated. During the seat movement, the panel displays a progress bar and a "Please remain stationary" prompt. After reaching the measurement position, the panel displays "Measurement in progress...", and after 2 seconds, outputs the weight value in kg, with an accuracy of ±0.5 kg and one decimal place. The measurement result can be stored locally, supports historical record queries, and can be synchronized to a mobile app. This interactive design conforms to ergonomics, avoids accidental touches, and improves the user experience.

[0052] In some embodiments, the controller 5 is further configured to adjust the seat back and leg rest angles so that the difference between the largest and smallest force values ​​among the data collected by the four sensors is greater than a set value, and then output the weight measurement result on the display control panel 6. Through the above embodiments, the accuracy of the measurement results can be further improved.

[0053] In some embodiments, when the vehicle is in motion, and a passenger selects the weight measurement option on the display control panel 6, the controller 5 is configured to output a reminder message on the display control panel 6, indicating that the vehicle is in motion and is not suitable for weight measurement.

[0054] For example, the controller reads the vehicle speed signal from the vehicle's CAN bus in real time. When the vehicle speed is greater than 1 km / h, if the user triggers a weight measurement command, the controller immediately interrupts the seat movement logic, displays a full-screen warning message: "Weight cannot be measured while driving. Please stop and operate," accompanied by a voice prompt. This warning message has higher priority than other non-safety prompts and requires user confirmation before it can be closed. Simultaneously, the controller records this event in the background for subsequent user behavior analysis and system optimization. This mechanism ensures that the system does not allow the seat to move to the measurement position while the vehicle is in motion. The reason is that the rigidity and strength of the guide rail at this location are lower than at other locations. If the seat remains at this measurement position while the vehicle is in motion, it may pose unexpected safety risks during vehicle movement or a collision. Therefore, it effectively blocks this measurement position during driving, fundamentally eliminating driving interference or collision risks caused by seat displacement.

[0055] In some embodiments, when the seat is being used for weight measurement or is being moved to the measurement position, if the vehicle starts moving, the controller 5 is configured to drive the motor to move the seat to a non-measurement position and output a reminder message through the display control panel 6.

[0056] For example, during weight measurement, if the vehicle speed sensor detects a sudden increase in vehicle speed from 0 to >1 km / h, the controller immediately executes an emergency safety operation: interrupting data acquisition, shutting off sensor power, driving the motor in the opposite direction, and moving the seat back to its default position (usually the middle or foremost position) at a safe speed ≤30 mm / s. Simultaneously, a red warning pops up on the display panel: "Vehicle movement detected; measurement automatically exited and seat reset." This process is completed within 500 ms, ensuring safe evacuation the instant the vehicle starts moving. Simultaneously, the system records this event as "Measurement Interrupted During Driving" and marks it in the safety event log for after-sales diagnostics. This mechanism meets the ISO 26262 functional safety ASIL-B level requirements, ensuring that occupant safety is prioritized in any unexpected driving scenario.

[0057] In some embodiments, when the vehicle is on a slope, the controller 5 is configured to correct the weight measurement results according to the angle of the slope.

[0058] For example, the system integrates a high-precision six-axis inertial measurement unit (IMU), installed in the non-vibration area of ​​the slide rail or seat frame, to collect the vehicle's three-axis acceleration and angular velocity in real time. When the vehicle is stationary on a slope, the IMU detects that the vertical acceleration component is less than 1g, and the controller calculates the vehicle's pitch angle θ through vector decomposition. The weight measurement value F_raw = k·ΔR (converted from the strain signal), and the actual vertical gravity component is F_true = F_raw / cosθ. The controller has established a mapping table between θ and correction coefficients during the calibration phase, covering a pitch angle range of -15° to +15°. For example, when θ = 10°, cosθ ≈ 0.985, the correction coefficient is 1.015, and the weight value is increased by 1.5%. This correction algorithm operates independently without external reference conditions, requiring no GPS or external sensors.

[0059] The implementation process of the embodiments of this disclosure will be described in detail below.

[0060] like Figure 2-6 As shown, the weight measurement system includes a seat frame 1, a long seat rail 2, a strain sensor 3, a controller 5, and a display and control panel 6. The seat frame 1 is constrained within the long seat rail by a mechanical limiting structure and pulleys, allowing it to move only forward and backward along the rail's direction. A groove is cut into the long seat rail 2 at the center of a seat frame pulley 4 at a specific seat position, corresponding to the direction of gravity. This groove is located on the opposite side of the long seat rail, reducing its local thickness. The strain sensor 3 is attached to this groove. A single weight measurement device can have four or more seat frame pulleys 4. The strain sensor 3 is a resistance strain gauge, which converts the strain generated by the load at the groove in the long seat rail 2 into a change in resistance. This change in resistance can be measured using a full-bridge circuit, and the resistance change is mapped to the magnitude of force, thereby measuring the weight.

[0061] like Figure 2 , 4 As shown in Figure 5, this is one possible measurement position in the weight measuring device. The seat frame 1 is moved to the measurement position by a gear and rack mechanism driven by a front-to-back moving motor. In this position, the seat frame pulley 4 is directly above the slot of the long seat rail 2. At this time, the weight of the seat frame 1 and the occupant is transmitted to the slot of the long seat rail 2 through the seat frame pulley 4, and the sensor set in the slot is used to detect the passenger's weight. Because the long seat rail 2 is slotted in this position, its rigidity is low, and the sensitivity of weight measurement is high, which is beneficial to improving the accuracy of weight measurement and reducing the impact of zero-point drift on measurement accuracy.

[0062] like Figure 3As shown, this is a possible non-measuring position of the weight measuring device. To ensure the safety of the occupants during vehicle operation and to prevent plastic deformation or even breakage at the slot of the long seat slide rail 2, the seat frame is moved to this position by a gear and rack mechanism driven by a front-to-back moving motor. In this position, the pulley 4 is located in a position other than the slot of the long seat slide rail 2. Even if the vehicle is involved in a collision, this position should ensure sufficient rigidity and strength to not affect the safety performance of the occupants.

[0063] like Figure 6 As shown, when the occupant selects to start weight measurement from the display control panel 6, the seat frame 1 moves to the measurement position, and at the same time, the controller 5 collects signals from each strain sensor 3. When the difference between the strain sensor with the greatest force and the strain sensor with the least force is detected to be greater than a threshold, it can be considered that the center of gravity of the occupant and the seat has deviated from the appropriate measurement position under the current seat posture. At this time, by adjusting the angle of the seat back and leg rest, the difference between the strain sensor with the greatest force and the strain sensor with the least force is adjusted to be less than another threshold before weight measurement is performed, and the result is sent to the display control panel 6.

[0064] When an occupant selects to start a weight measurement via the display control panel 6 while the vehicle is in motion, the seat will not respond to the occupant's operation and will display a message on the display control panel 6 indicating that the vehicle is currently in motion and is not suitable for weight measurement.

[0065] When an occupant begins weight measurement while the vehicle is stationary, and the seat has been moved to or is being moved to the weight measurement position, if the vehicle starts moving at this time, the seat will immediately return to the non-measurement position and will notify the user via the display control panel 6 that the vehicle is currently in motion and it is not suitable to perform weight measurement.

[0066] When a vehicle is parked on a slope, the acceleration sensor in the measurement circuit can detect the angle between the vehicle's vertical direction and the actual direction of gravity, and use this angle to correct the weight measurement results to ensure the accuracy of the measurement.

[0067] Embodiments of this disclosure also provide a vehicle including the system described above. The vehicle can be a plug-in hybrid electric vehicle, a range-extended hybrid electric vehicle, a pure electric vehicle, or a new energy vehicle, etc., and this specification does not specifically limit it. According to the vehicle provided in the embodiments of this disclosure, this solution does not require additional mechanical structures, has low cost, and can be adapted to various different vehicle models. At the same time, the solution has a simple structure, high sensitivity in weight measurement, and is not easily damaged.

[0068] The above-described embodiments are only used to illustrate the technical solutions applied to vehicles, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the method can also be used in motor vehicles, trains, and ships, etc., without causing the essence of the corresponding technical solutions to deviate from the scope of the technical solutions in the embodiments of this application.

[0069] In one embodiment, the vehicle can be configured for fully or partially autonomous driving. For example, the vehicle can control itself while in autonomous driving mode, and can determine the current state of the vehicle and its surrounding environment through human intervention, determine the possible behaviors of at least one other vehicle in the surrounding environment, and determine the confidence level corresponding to the probability of that other vehicle performing a possible behavior, and control the vehicle based on the determined information. When the vehicle is in autonomous driving mode, it can be configured to operate without human interaction.

[0070] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0071] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," "optional example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0072] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0073] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Although the descriptions of each embodiment in this application have different focuses, and the parts not described in detail in a certain embodiment can be referred to the relevant embodiments of other embodiments, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of this application without departing from the content of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A weight measurement system for vehicles, characterized in that, include: A seat frame and a slide rail, wherein the seat frame moves along the slide rail, and the slide rail has a groove structure. And a sensor disposed within the slot structure, the sensor being configured to detect the passenger’s weight when the seat frame moves to a measurement position, the measurement position being the location of the slot structure.

2. The system according to claim 1, characterized in that, The groove structure is located on the back of the slide rail, and the groove structure is close to the rear of the vehicle.

3. The system according to claim 1, characterized in that, The groove structure is a rectangular groove, or a cantilever beam structure is formed at the groove structure.

4. The system according to claim 1, characterized in that, The sensor is attached inside the groove structure.

5. The system according to claim 1, characterized in that, The slide rail includes two slide rails, each with at least two slot structures. The distance between the two slot structures on the first slide rail is equal to the distance between the two slot structures on the second slide rail. Each slot structure is equipped with a sensor.

6. The system according to claim 5, characterized in that, The seat frame is provided with pulleys at the four corners of its bottom. The seat frame moves on the slide rail via the pulleys. When it moves to the measurement position, the pulleys at the four corners are located directly above the groove structure.

7. The system according to any one of claims 1-6, characterized in that, The system also includes: A controller and a motor, the controller being configured to drive the motor to move the seat to the measuring position.

8. The system according to claim 7, characterized in that, The system also includes a display control panel connected to the controller; when a passenger selects the weight measurement option on the display control panel, the controller is configured to drive the motor to move the seat to the measurement position and display the passenger's weight on the display control panel.

9. The system according to claim 8, characterized in that, When the vehicle is in motion, and a passenger selects the weight measurement option on the display control panel, the controller is configured to output a reminder message on the display control panel indicating that the vehicle is in motion and is not suitable for weight measurement.

10. The system according to claim 9, characterized in that, When the seat is being used for weight measurement or is being moved to the measurement position, if the vehicle starts moving, the controller is configured to drive the motor to move the seat to a non-measurement position and output the reminder information through the display control panel.

11. The system according to claim 7, characterized in that, When the vehicle is on a slope, the controller is configured to correct the weight measurement results according to the angle of the slope.

12. The system according to claim 8, characterized in that, The controller is also configured to adjust the seat back and leg rest angles so that the difference between the largest and smallest force values ​​among the data collected by the four sensors is greater than a set value, and output the weight measurement result on the display control panel.

13. A vehicle, characterized in that, include: The system according to any one of claims 1-12.

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