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CN-121989944-A - Method for controlling vehicle, controller and vehicle

CN121989944ACN 121989944 ACN121989944 ACN 121989944ACN-121989944-A

Abstract

The application provides a method for controlling a vehicle, a controller and the vehicle, and relates to the technical field of vehicle control. In the method, when a vehicle is in a running-in stage, a first working condition deduction is determined based on a first operation parameter and a corresponding first duration of a transmission system, a second operation parameter and a corresponding second duration of a power system in a preset running period. This can accurately reflect the deviation of the vehicle from the target running-in degree achieved when running in the vehicle under various conditions. The method can reflect the actual running-in state of the vehicle under different working conditions, and provides a reliable basis for judging the deviation from the target running-in degree. And determining the difference between the first preset score and the first working condition deduction as a target score. The vehicle running-in degree detection method can intuitively quantify the actual running-in degree of the vehicle, and is helpful for quickly identifying the problems of single working condition and the like. When the target score is smaller than the second preset score, the vehicle is controlled, so that the vehicle can be assisted to achieve the target running-in degree, and the performance stability of the vehicle in the subsequent use process is guaranteed.

Inventors

  • ZHANG FUXU

Assignees

  • 长城汽车股份有限公司

Dates

Publication Date
20260508
Application Date
20260403

Claims (10)

  1. 1. A method of controlling a vehicle, the method comprising: Under the condition that a vehicle is in a running-in stage, determining a first working condition deduction based on a first operation parameter of a transmission system, a first duration corresponding to the first operation parameter, a second operation parameter of a power system and a second duration corresponding to the second operation parameter of the vehicle in a preset running period, wherein the first working condition deduction is a deduction fraction of the vehicle deviating from a target running-in degree, and the target running-in degree is the running-in degree realized when the vehicle is in under various working conditions; Determining a difference value between a first preset score and the first working condition deduction as a target score, wherein the first preset score is a corresponding reference score when the vehicle achieves the target running-in degree, and the target score is used for quantifying the running-in degree achieved by the vehicle; And controlling the vehicle to enable the vehicle to achieve the target running-in degree under the condition that the target score is smaller than a second preset score.
  2. 2. The method of claim 1, wherein the determining a first operating condition split based on a first operating parameter of a driveline of the vehicle during a preset travel period, a first duration corresponding to the first operating parameter, a second operating parameter of a powertrain, and a second duration corresponding to the second operating parameter comprises: Determining a first weighting coefficient and a second weighting coefficient based on the first operating parameter and the second operating parameter, wherein the first weighting coefficient is used for quantifying the influence degree of the first operating parameter when the vehicle deviates from a target running-in degree, and the second weighting coefficient is used for quantifying the influence degree of the second operating parameter when the vehicle deviates from the target running-in degree; determining a first reference score and a second reference score based on the first duration and the second duration, wherein the first reference score is used for quantifying the contribution degree of the continuous running of the first running parameter to the deviation of the vehicle from the target running-in degree, and the second reference score is used for quantifying the contribution degree of the continuous running of the second running parameter to the deviation of the vehicle from the target running-in degree; And carrying out weighted fusion on the first reference score and the second reference score based on the first weighting coefficient and the second weighting coefficient to obtain the first working condition deduction.
  3. 3. The method of claim 2, wherein the first operating parameter comprises an actual gear and the second operating parameter comprises an actual rotational speed of the power take-off, and wherein determining the first and second weighting coefficients based on the first and second operating parameters comprises: Determining a gear span between the actual gear and a reference gear, wherein the reference gear is an initial reference gear, and the gear span is a gear number of the actual gear and the reference gear which are different; Determining a product between the gear span and a first coefficient as the first weighting coefficient, the first coefficient being a weighting coefficient which increases correspondingly per unit gear number, and Determining a rotating speed interval corresponding to the actual rotating speed, and determining a first span interval number between the rotating speed interval and a reference rotating speed interval, wherein the rotating speed interval and the reference rotating speed interval are identical in interval length; And determining the product between the first span number and a second coefficient as the second weighting coefficient, wherein the second coefficient is a weighting coefficient which is correspondingly increased when the rotating speed of the span length is increased.
  4. 4. The method of claim 3, wherein the determining a first benchmark score and a second benchmark score based on the first duration and the second duration comprises: Comparing the first duration with a plurality of first sample durations corresponding to vehicle gears, and determining a first sample duration matched with the first duration from the plurality of first sample durations, wherein the first sample duration is positively correlated with a first sample score; Determining a first sample fraction corresponding to the first sample duration of the plurality of first sample durations as a first reference fraction corresponding to the first duration, and Comparing the second duration with a plurality of second sample durations corresponding to the rotating speed, and determining a second sample duration matched with the second duration from the plurality of second sample durations, wherein the second sample duration is positively correlated with a second sample fraction; And determining a second sample score corresponding to the second sample duration in the plurality of second sample durations as a second reference score corresponding to the second duration.
  5. 5. The method of claim 2, wherein the first operating parameter comprises an actual gear ratio and the second operating parameter comprises an output torque of a power take-off component, and wherein determining the first weighting factor and the second weighting factor based on the first operating parameter and the second operating parameter comprises: determining a transmission ratio deviation between the actual transmission ratio and a reference transmission ratio, wherein the reference transmission ratio is an ideal transmission ratio corresponding to the vehicle when the target running-in degree is realized; determining a product between the transmission ratio deviation and a third coefficient as the first weighting coefficient, wherein the third coefficient is a weighting coefficient which is increased correspondingly per unit of increase of the transmission ratio deviation; determining a torque section corresponding to the output torque, and determining a second span section number between the torque section and a reference torque section, wherein the torque section and the reference torque section are identical in section length; and determining the product between the second span number and a fourth coefficient as the second weighting coefficient, wherein the fourth coefficient is a weighting coefficient which is correspondingly increased when the torque of the span length is increased.
  6. 6. The method of claim 1, wherein the method of determining that the vehicle is in a break-in phase comprises: determining whether the actual driving mileage of the vehicle is less than a preset driving mileage; determining whether the average driving speed of the vehicle is in a preset speed range or not under the condition that the actual driving mileage is smaller than the preset driving mileage; determining whether the accumulated running duration of the power output part does not exceed a preset duration under the condition that the average running speed is in the preset speed range; and under the condition that the accumulated running time length does not exceed the preset time length, determining that the vehicle is in the running-in stage.
  7. 7. The method according to any one of claims 1-6, wherein prior to said controlling the vehicle, the method further comprises: Outputting first reminding information, wherein the first reminding information is used for reminding whether the vehicle enters a running-in driving mode or not, and the running-in driving mode is an intervention control mode for assisting the vehicle to achieve a target running-in degree; the power system is controlled in the event that the vehicle enters the run-in driving mode.
  8. 8. The method of any one of claims 1-6, wherein the controlling the vehicle comprises: when the actual driving mode of the vehicle is a cruise driving mode, adjusting an actual gear of the vehicle to a first gear, wherein the first gear is different from the actual gear; And when the actual driving mode is not the cruise driving mode, adjusting a target corresponding relation, wherein the target corresponding relation comprises a first corresponding relation between the actual opening degree of a target pedal and a power output parameter and/or a second corresponding relation between the actual driving speed and the actual rotating speed and a vehicle gear.
  9. 9. The method of any one of claims 1-6, wherein the vehicle is mounted with vibration sensors in a plurality of mutually perpendicular directions, the method further comprising: Acquiring vibration parameters of the vehicle in all directions through a vibration sensor in the vehicle; Determining whether the vehicle is malfunctioning in a first direction of a plurality of directions based on the vibration parameters in the respective directions, the first direction being one or more of the plurality of directions; And under the condition that the vehicle breaks down in the first direction, outputting second reminding information, wherein the second reminding information is used for reminding the maintenance of the vehicle components in the first direction.
  10. 10. A vehicle, characterized in that the vehicle comprises: A memory for storing executable program code; A processor for calling and running the executable program code from the memory, causing the vehicle to perform the method of any one of claims 1 to 9.

Description

Method for controlling vehicle, controller and vehicle Technical Field The present application relates to the field of vehicle control technology, and more particularly, to a method of controlling a vehicle, a controller, and a vehicle in the field of vehicle running-in technology. Background In the early stages of vehicle use, it is often necessary to pass through a sufficient break-in phase to optimize the fit between the vehicle components and to improve the operational reliability and service life of the vehicle. Good running-in of the vehicle requires a driver to have a rich driving experience to be able to reasonably control the vehicle during running-in so that it runs smoothly under a variety of typical conditions. However, in an actual use scenario, the driving experience and the operation level of the driver are uneven, which makes it difficult to ensure a uniform and preferable running-in effect. Part of drivers cannot cover various running conditions in the running-in stage due to insufficient experience, and often only run for a long time under a single and fixed condition. This running-in pattern under a single condition may result in insufficient precision of the fit between the vehicle components. When the automobile is used for a long time, the problems of abnormal sound, shaking, oil consumption increase, power reduction and the like are easily caused, and when the automobile is serious, the service life of the automobile is shortened, so that the safety and the comfort during running are affected. Therefore, in the running-in stage of the vehicle, aiming at the problems that the driver has larger difference in driving experience and operation level, single working condition and lower running-in degree are easy to occur, the method has important significance in effectively identifying the vehicle. Namely, the problem can be found timely, the basis is provided for optimizing the running-in process and improving the running-in degree, and the stable and reliable performance of the vehicle after the vehicle is put into use is further ensured. Disclosure of Invention The application provides a method for controlling a vehicle, a controller and the vehicle, wherein the method can objectively and accurately evaluate the running-in effect when the vehicle is in a running-in stage, and is beneficial to quickly and accurately identifying the problems of single working condition and low running-in degree. In a first aspect, a method for controlling a vehicle is provided, where the method includes determining a first operating condition split based on a first operating parameter of a transmission system, a first duration corresponding to the first operating parameter, a second operating parameter of a power system, and a second duration corresponding to the second operating parameter of the vehicle during a preset period of travel when the vehicle is in a break-in phase, where the first operating condition split is a deduction fraction of the vehicle from a target break-in degree, where the target break-in degree is a break-in degree achieved when the vehicle is in a plurality of operating conditions, determining a difference between the first preset fraction and the first operating condition split as a target fraction, where the first preset fraction is a reference fraction corresponding to a time when the vehicle achieves the target break-in degree, where the target fraction is used to quantify the break-in degree achieved by the vehicle, and controlling the vehicle, where the target fraction is less than the second preset fraction, such that the vehicle achieves the target break-in degree. According to the technical scheme, when the vehicle is in the running-in stage, the first working condition deduction is determined based on the first operation parameter and the corresponding first duration of the transmission system, the second operation parameter and the corresponding second duration of the power system in the preset running period. This can accurately reflect the target running-in degree achieved when the vehicle deviates from multi-station running-in. Meanwhile, the actual running-in state of the vehicle under different working conditions can be comprehensively reflected, the situation that a single operation parameter cannot fully embody the running-in effect is avoided, and a reliable basis is provided for accurately judging the running-in deviation with the target running-in degree. And determining the score difference between the first preset score and the first working condition deduction as a target score. That is, the abstract running-in state is converted into an intuitive and contrastive score, so that the actual running-in degree of the vehicle can be intuitively quantized, objective and accurate assessment of the running-in effect is realized, and the problems of single working condition and lower running-in degree can be quickly and accurately identified. Further, when the targe