CN-121973677-A - Seat mounting device, vehicle-mounted measuring device, calibration method and device thereof, and vehicle

CN121973677ACN 121973677 ACN121973677 ACN 121973677ACN-121973677-A

Abstract

The application discloses a seat mounting device, a vehicle-mounted measuring device, a calibration method and device thereof, and a vehicle, and belongs to the technical field of vehicles. The seat mounting device comprises a mounting seat, a strain sensor and a seat body, wherein the mounting seat comprises a seat body and a deformation area, the seat body is connected with the vehicle body, the deformation area is connected with the seat body, a groove is formed between the deformation area and the seat body so that the deformation area can deform relative to the seat body, the deformation area is provided with a supporting part for supporting a seat, and the strain sensor is mounted in the deformation area. The application is beneficial to reducing the manufacturing cost of the vehicle-mounted measuring device and can improve the measuring accuracy of the vehicle-mounted measuring device through automatic calibration.

Inventors

QIU GUOWEI
WANG JIANXIANG
She Xitao
GUO SHUN
CAO MU

Assignees

比亚迪股份有限公司

Dates

Publication Date: 20260505
Application Date: 20260212

Claims (10)

1. A seat mounting device, comprising: the mounting seat comprises a seat body and a deformation area, wherein the seat body is used for being connected with a vehicle body, the deformation area is connected with the seat body, a groove is formed between the deformation area and the seat body so that the deformation area can deform relative to the seat body, and the deformation area is provided with a supporting part used for supporting a seat; and the strain sensor is arranged in the deformation area.
2. The seat mounting device according to claim 1, wherein two U-shaped grooves are provided on the mounting base, the two U-shaped grooves are oppositely provided on both sides of the mounting hole of the mounting base, and openings of the two U-shaped grooves are both directed toward the mounting hole; The two U-shaped grooves separate corresponding areas on two sides of the mounting hole from the mounting seat part so as to form two deformation areas.
3. The seat mounting device according to claim 1, wherein the mounting base is provided with two parallel rectangular slots, the two rectangular slots being oppositely arranged at two sides of the mounting hole of the mounting base; The two rectangular grooves separate corresponding areas on two sides of the mounting hole from the mounting seat part to form two deformation areas.
4. A seat mounting apparatus as claimed in any one of claims 1 to 3, further comprising: the limiting mechanism is arranged on one side of the deformation area, which faces the vehicle body; the limiting mechanism is matched with the deformation area to limit the deformation amplitude of the deformation area.
5. The seat mounting apparatus of claim 4 wherein the limit mechanism comprises a limit plate and a spacer; The limiting plate is arranged on one side, facing the vehicle body, of the deformation zone, and the plate surface, facing one side of the deformation zone, of the limiting plate is arranged opposite to the surface, facing one side of the vehicle body, of the deformation zone; The gasket is clamped between the limiting plate and the mounting seat, and the gap size between the limiting plate and the mounting seat defined by the gasket is used for limiting the maximum deformation amplitude of the deformation area.
6. An in-vehicle measurement device comprising a seat and a seat mounting device as claimed in any one of claims 1 to 5; The seat is arranged on a supporting part of the deformation area of the seat installation device; the strain sensor of the seat mounting device detects deformation of the deformation zone and outputs strain data to determine load data of the seat based on the strain data.
7. A method for calibrating a vehicle-mounted measuring device according to claim 6, the method comprising: Under at least one seat adjusting working condition, strain data output by the vehicle-mounted measuring device are obtained; And determining calibration parameters of the vehicle-mounted measuring device based on the strain data and reference load data of the seat corresponding to the strain data, wherein the calibration parameters are used for determining the load data of the seat according to the strain data.
8. The calibration method of the in-vehicle measurement device according to claim 7, wherein the determining the calibration parameter of the in-vehicle measurement device based on the strain data and the reference load data of the seat corresponding to the strain data includes: determining actual load data of the seat based on the strain data in combination with a sensitivity coefficient matrix of the vehicle-mounted measuring device; Constructing an objective function according to the actual load data and the reference load data, and performing minimization optimization on the objective function under the constraint of a sensitivity coefficient matrix to update the sensitivity coefficient matrix; and under the condition that the objective function meets the preset constraint condition, taking the updated sensitivity coefficient matrix as a calibration parameter of the vehicle-mounted measuring device.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the calibration method of the in-vehicle measuring device according to claim 7 or 8 when executing the program.
10. A vehicle comprising the seat mounting device according to any one of claims 1 to 5, the in-vehicle measuring device according to claim 6, or the electronic apparatus according to claim 9.

Description

Seat mounting device, vehicle-mounted measuring device, calibration method and device thereof, and vehicle Technical Field The application belongs to the technical field of vehicles, and particularly relates to a seat mounting device, a vehicle-mounted measuring device, a calibration method and device thereof, and a vehicle. Background With the development of intelligent technologies of vehicles, the demands of vehicle-mounted weight measurement functions in scenes such as occupant safety protection and personalized services are increasingly raised. In the related art, the vehicle-mounted weighing measurement is realized by additionally adding special sensors or high-cost equipment such as motors, the manufacturing cost is high, the large-scale mass production popularization is not facilitated, and the vehicle-mounted weighing measurement is easily influenced by factors such as stress release or temperature change of a vehicle body, so that the measurement accuracy is insufficient. Disclosure of Invention The present application is directed to solving at least one of the technical problems existing in the related art. Therefore, the application provides the seat mounting device, the vehicle-mounted measuring device, the calibration method, the device and the vehicle, which are beneficial to reducing the manufacturing cost of the vehicle-mounted measuring device and improving the measuring accuracy of the vehicle-mounted measuring device through automatic calibration. In a first aspect, the present application provides a seat mounting device comprising: the mounting seat comprises a seat body and a deformation area, wherein the seat body is used for being connected with a vehicle body, the deformation area is connected with the seat body, a groove is formed between the deformation area and the seat body so that the deformation area can deform relative to the seat body, and the deformation area is provided with a supporting part used for supporting a seat; and the strain sensor is arranged in the deformation area. In the technical scheme, the fixed reference is provided through the seat body and the rigid connection of the vehicle body, elastic deformation is realized through the grooves between the deformation area and the seat body, the seat is supported by the supporting part and the load is transmitted, the deformation of the deformation area is detected through the strain sensor, the installation function and the deformation detection function are integrated into a whole, compared with the traditional seat installation device, only the fixed installation of the seat can be realized, the deformation corresponding to the seat load can not be detected, the elastic deformation of the deformation area is realized through the groove design, the deformation detection is completed through the cooperation of the strain sensor, the structural foundation is provided for vehicle-mounted measurement when the stable installation of the seat is realized, the manufacturing cost of the seat installation device is effectively reduced, the manufacturing cost of the vehicle-mounted measurement device is further reduced, the structural size, the groove shape and the sensor selection of the device can be flexibly adjusted according to the actual application scene, and the universality of the seat installation device is improved. According to one embodiment of the application, two U-shaped grooves are formed in the mounting seat, the two U-shaped grooves are oppositely arranged on two sides of a mounting hole of the mounting seat, and openings of the two U-shaped grooves face the mounting hole; The two U-shaped grooves separate corresponding areas on two sides of the mounting hole from the mounting seat part so as to form two deformation areas. According to one embodiment of the application, two parallel rectangular grooves are formed in the mounting seat, and the two rectangular grooves are oppositely arranged on two sides of a mounting hole of the mounting seat; The two rectangular grooves separate corresponding areas on two sides of the mounting hole from the mounting seat part to form two deformation areas. According to one embodiment of the present application, the seat mounting device further includes: the limiting mechanism is arranged on one side of the deformation area, which faces the vehicle body; the limiting mechanism is matched with the deformation area to limit the deformation amplitude of the deformation area. According to one embodiment of the application, the limiting mechanism comprises a limiting plate and a gasket; The limiting plate is arranged on one side, facing the vehicle body, of the deformation zone, and the plate surface, facing one side of the deformation zone, of the limiting plate is arranged opposite to the surface, facing one side of the vehicle body, of the deformation zone; The gasket is clamped between the limiting plate and the mounting seat, and the gap size between the limiting plate and