CN-121973797-A - Whole vehicle quality estimation method and device, electronic equipment and storage medium

CN121973797ACN 121973797 ACN121973797 ACN 121973797ACN-121973797-A

Abstract

The application relates to the technical field of vehicles and discloses a method and a device for estimating the quality of a whole vehicle, electronic equipment and a storage medium. The method comprises the steps of obtaining a multisource vehicle-mounted data set, executing preprocessing operation to obtain a preprocessed data set, executing energy item collection calculation according to the preprocessed data set to at least determine a plurality of vehicle energy item powers and acting parameters, integrating all the vehicle energy item powers and the acting parameters to build a vehicle energy balance equation in stages to at least obtain a driving stage balance equation and a braking stage balance equation, outputting a driving stage mass estimation formula and a braking stage mass estimation formula according to at least the driving stage balance equation and the braking stage balance equation, and further obtaining the whole vehicle mass estimation parameters based on at least all the mass estimation formulas. The application provides a set of high-precision real-time estimation scheme for the quality of the whole vehicle, which is adaptive to multiple working conditions and multiple scenes, at least on the basis of not increasing additional vehicle cost, and is beneficial to meeting the actual use requirements of intelligent operation of the vehicle.

Inventors

SUN TIANHAO
WU AIWEN
WANG XINZHU
YU WANTING

Assignees

一汽解放汽车有限公司

Dates

Publication Date: 20260505
Application Date: 20260330

Claims (10)

1. The whole vehicle quality estimation method is characterized by at least comprising the following steps: acquiring a multi-source vehicle-mounted data set, and performing preprocessing operation on the multi-source vehicle-mounted data set to obtain a preprocessed data set; performing energy item collection calculation according to the preprocessing data set to at least determine a plurality of vehicle energy item powers and work doing parameters; Integrating all the vehicle energy term power and acting parameters to build a vehicle energy balance equation in stages so as to at least obtain a driving stage balance equation and a braking stage balance equation; And outputting a driving stage quality estimation formula and a braking stage quality estimation formula at least according to the driving stage balance equation and the braking stage balance equation, and further obtaining a whole vehicle quality estimation parameter at least based on all the quality estimation formulas.
2. The vehicle mass estimation method of claim 1, wherein the vehicle mass estimation parameters include at least a drive phase mass parameter and a brake phase mass parameter; after the driving stage mass estimation formula and the braking stage mass estimation formula are output according to at least the driving stage balance equation and the braking stage balance equation, and the whole vehicle mass estimation parameters are obtained based on at least all the mass estimation formulas, the method at least further comprises the following steps: establishing a joint estimation equation set, and constructing an objective function by taking the driving stage quality parameter and the braking stage quality parameter as constraint; and solving the objective function by adopting a preset optimizing algorithm to output an optimized quality estimation parameter.
3. The vehicle mass estimation method of claim 2, further comprising, after said solving the objective function using a preset optimizing algorithm to output an optimized mass estimation parameter: and updating the driving stage quality parameters and the braking stage quality parameters in real time according to the actual running of the vehicle, and iteratively realizing the dynamic correction of the optimized quality estimation parameters so as to at least ensure the instantaneity and the accuracy of the whole vehicle quality estimation.
4. The vehicle mass estimation method of claim 1, wherein the plurality of vehicle energy term power and work parameters include at least a driving force work parameter, a rotational kinetic energy variation parameter, a braking force work parameter, an air resistance work parameter, a gradient resistance work parameter, a rolling resistance work parameter, and a vehicle kinetic energy variation parameter.
5. A vehicle mass estimation device for performing the vehicle mass estimation method of any one of claims 1-4; the whole vehicle quality estimation device at least comprises: The data processing module is used for acquiring a multi-source vehicle-mounted data set, and executing preprocessing operation on the multi-source vehicle-mounted data set to obtain a preprocessed data set; the parameter determining module is used for executing energy item collection calculation according to the preprocessing data set so as to at least determine a plurality of vehicle energy item powers and acting parameters; The equation construction module is used for integrating all the vehicle energy term power and acting parameters to construct a vehicle energy balance equation in a staged manner so as to at least obtain a driving stage balance equation and a braking stage balance equation; The mass estimation module is used for outputting a driving stage mass estimation formula and a braking stage mass estimation formula at least according to the driving stage balance equation and the braking stage balance equation, and further obtaining a whole vehicle mass estimation parameter at least based on all the mass estimation formulas.
6. The vehicle mass estimation device of claim 5, wherein the vehicle mass estimation parameters include at least a drive phase mass parameter and a brake phase mass parameter; The whole vehicle quality estimation device at least further comprises an estimation optimization module, wherein the estimation optimization module is at least used for: establishing a joint estimation equation set, and constructing an objective function by taking the driving stage quality parameter and the braking stage quality parameter as constraint; and solving the objective function by adopting a preset optimizing algorithm to output an optimized quality estimation parameter.
7. The vehicle mass estimation device of claim 6, further comprising at least a dynamic correction module configured to at least: and updating the driving stage quality parameters and the braking stage quality parameters in real time according to the actual running of the vehicle, and iteratively realizing the dynamic correction of the optimized quality estimation parameters so as to at least ensure the instantaneity and the accuracy of the whole vehicle quality estimation.
8. The vehicle mass estimation device of claim 5, wherein the plurality of vehicle energy term power and work parameters include at least a driving force work parameter, a rotational kinetic energy variation parameter, a braking force work parameter, an air resistance work parameter, a gradient resistance work parameter, a rolling resistance work parameter, and a vehicle kinetic energy variation parameter.
9. An electronic device comprising a memory and a processor, said memory storing a computer program executable on said processor, wherein said processor, when executing said program, implements the steps of the vehicle mass estimation method of any one of claims 1-4.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, carries out the steps in the vehicle mass estimation method as claimed in any one of claims 1-4.

Description

Whole vehicle quality estimation method and device, electronic equipment and storage medium Technical Field The present invention relates to the field of vehicle technologies, and in particular, to a method and apparatus for estimating quality of a whole vehicle, an electronic device, and a storage medium. Background The safety and stability of automatic driving in the running process of a vehicle are ensured by multiple factors, and the actual running quality (containing the weight of the load) is a core parameter affecting the dynamic performance, the energy consumption level, the braking safety and the running efficiency of the vehicle. How to accurately acquire the real-time running quality of the vehicle has important significance in optimizing an operation strategy, reducing safety risks and improving energy consumption management level. At present, the following technical problems exist in quality detection during the running process of a vehicle: 1. The traditional detection method needs to additionally install a special sensor (such as a weight sensor), so that the equipment cost and the installation complexity are increased, and the detection stability is easily influenced by working condition environments, so that the detection stability is insufficient; 2. the existing estimation method is mostly dependent on single working condition data (such as only based on a driving stage or a braking stage), is easy to be interfered by factors such as gradient and resistance fluctuation, and the estimation precision is difficult to meet the actual operation requirement; 3. The part of the technical proposal has limited adaptation scenes, cannot be compatible with various typical road conditions such as highways, mountain roads, mining areas, and the like, and is also difficult to adapt to the customization demands of different vehicle types and subdivision industries. Disclosure of Invention The invention aims to provide a vehicle quality estimation method, a device, electronic equipment and a storage medium, and provides a set of high-precision real-time vehicle quality estimation scheme which utilizes original data channels of vehicles and adapts to multiple scenes on the basis of not executing refitting of external equipment of the vehicles and not increasing additional vehicle cost, thereby being beneficial to meeting the actual use requirements of intelligent operation of the vehicles. In order to solve the technical problems, in a first aspect, the present invention provides a method for estimating quality of a whole vehicle, at least including: acquiring a multi-source vehicle-mounted data set, and performing preprocessing operation on the multi-source vehicle-mounted data set to obtain a preprocessed data set; performing energy item collection calculation according to the preprocessing data set to at least determine a plurality of vehicle energy item powers and work doing parameters; Integrating all the vehicle energy term power and acting parameters to build a vehicle energy balance equation in stages so as to at least obtain a driving stage balance equation and a braking stage balance equation; And outputting a driving stage quality estimation formula and a braking stage quality estimation formula at least according to the driving stage balance equation and the braking stage balance equation, and further obtaining a whole vehicle quality estimation parameter at least based on all the quality estimation formulas. Optionally, the vehicle quality estimation parameter at least includes a driving stage quality parameter and a braking stage quality parameter; after the driving stage mass estimation formula and the braking stage mass estimation formula are output according to at least the driving stage balance equation and the braking stage balance equation, and the whole vehicle mass estimation parameters are obtained based on at least all the mass estimation formulas, the method at least further comprises the following steps: establishing a joint estimation equation set, and constructing an objective function by taking the driving stage quality parameter and the braking stage quality parameter as constraint; and solving the objective function by adopting a preset optimizing algorithm to output an optimized quality estimation parameter. Optionally, after the objective function is solved by adopting a preset optimizing algorithm to output an optimized quality estimation parameter, at least the following steps are further included: and updating the driving stage quality parameters and the braking stage quality parameters in real time according to the actual running of the vehicle, and iteratively realizing the dynamic correction of the optimized quality estimation parameters so as to at least ensure the instantaneity and the accuracy of the whole vehicle quality estimation. Optionally, the plurality of vehicle energy term power and work parameters at least include a driving force work parameter, a rotati