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CN-119821387-B - Vehicle control method, device, vehicle, storage medium, and program product

CN119821387BCN 119821387 BCN119821387 BCN 119821387BCN-119821387-B

Abstract

The application provides a vehicle control method, a device, a vehicle, a storage medium and a program product, relating to the technical field of vehicles, wherein the method is applied to vehicles deployed with predictive adaptive cruise control PECC, according to the method, the average speed of the vehicle in the preset distance length is obtained, and the torque of the engine of the vehicle is adjusted according to the relation between the average speed of the vehicle in the preset distance length and the preset target speed. Wherein the preset distance length includes at least one of a first distance length before a current position of the vehicle, a second distance length after the current position, or a sum of the first distance length and the second distance length. The scheme realizes the dynamic regulation and control of the torque of the vehicle engine, can avoid unnecessary speed up or speed down and saves oil consumption.

Inventors

  • DENG SHI

Assignees

  • 采埃孚商用车系统(青岛)有限公司

Dates

Publication Date
20260512
Application Date
20241231

Claims (6)

  1. 1. A vehicle control method, characterized by being applied to a vehicle deployed with a predictive adaptive cruise control PECC system, the method comprising: The method comprises the steps of obtaining the average speed of a vehicle at a preset distance length, wherein the preset distance length comprises any one of a first distance length before the current position of the vehicle, a second distance length after the current position of the vehicle or the sum of the first distance length and the second distance length, the second distance length is the distance length between the position corresponding to the end of an uneconomic torque interval predicted by a PECC system and the current position of the vehicle, when the preset distance length comprises the second distance length and the average speed of the first distance length is larger than a preset target speed, the average speed of the second distance length is determined by speed data of a second distance length predicted by a vehicle control device, and when the preset distance length comprises the second distance length and the average speed of the first distance length is smaller than the preset target speed, the average speed of the second distance length is determined by speed data of a second distance length planned by a PECC core module in the PECC system, and the preset target speed is the cruise control system; And adjusting the torque of the vehicle engine by combining the current rotating speed and the current torque of the vehicle engine according to the relation between the average speed of the vehicle at the preset distance length and the preset target speed, wherein the torque of the vehicle engine is set to 0 when the average speed of the vehicle at the preset distance length is higher than the preset target speed and the current torque is in an uneconomic section, and the torque of the vehicle engine is set to an economic torque section corresponding to the current rotating speed when the average speed of the vehicle at the preset distance length is lower than the preset target speed and the current torque is 0 or in the uneconomic section.
  2. 2. The method of claim 1, wherein the step of adjusting the torque of the vehicle engine comprises: If the absolute value of the difference between the average speed of the preset distance length and the preset target speed of the vehicle is smaller than a third value, the current torque is maintained, and the third value is a positive value; If the average speed of the vehicle in the preset distance length is greater than the preset target speed, the difference value between the average speed of the preset distance length and the preset target speed is greater than or equal to a first value, the current torque of the vehicle engine is in a first torque interval, and the torque of the vehicle engine is set to be 0; And if the average speed of the vehicle in the preset distance length is smaller than the preset target speed, the difference value between the preset target speed and the average speed of the preset distance length is larger than or equal to a second value, the current torque of the vehicle engine is 0 or is in a first torque interval, the torque of the vehicle engine is adjusted to a second torque interval, the second torque interval is an economic torque interval corresponding to the current rotating speed, and all torque values of the first torque interval are smaller than the minimum torque value of the second torque interval.
  3. 3. A vehicle control apparatus for use with a vehicle having a predictive adaptive cruise control PECC system disposed thereon, comprising: The system comprises a vehicle control device, an acquisition module, a cruise control system, a speed control module and a speed control module, wherein the vehicle is provided with a preset distance length, the preset distance length comprises any one of a first distance length before the current position of the vehicle, a second distance length after the current position of the vehicle or a sum of the first distance length and the second distance length, the second distance length is the distance length between the position corresponding to the end of an uneconomic torque interval predicted by the PECC system and the current position of the vehicle, when the preset distance length comprises the second distance length and the average speed of the first distance length is larger than a preset target speed, the average speed of the second distance length is determined by speed data of the second distance length predicted by the vehicle control device, and when the preset distance length comprises the second distance length and the average speed of the first distance length is smaller than the preset target speed, the average speed of the second distance length is determined by the PECC core module in the PECC system; The processing module is used for adjusting the torque of the vehicle engine according to the magnitude relation between the average speed of the vehicle at the preset distance length and the preset target speed and combining the current rotating speed and the current torque of the vehicle engine, wherein the torque of the vehicle engine is set to 0 when the average speed of the vehicle at the preset distance length is higher than the preset target speed and the current torque is in an uneconomic section, and the torque of the vehicle engine is set to be an economic torque section corresponding to the current rotating speed when the average speed of the vehicle at the preset distance length is lower than the preset target speed and the current torque is 0 or in the uneconomic section.
  4. 4. A vehicle is characterized by comprising a vehicle main body and a vehicle controller; wherein the vehicle controller includes a processor and a memory; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory to implement the vehicle control method according to claim 1 or 2.
  5. 5. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored therein computer-executable instructions, which when executed by a processor, are for realizing the vehicle control method according to claim 1 or 2.
  6. 6. A computer program product comprising a computer program, characterized in that the computer program is for implementing the vehicle control method according to claim 1 or 2 when being executed by a processor.

Description

Vehicle control method, device, vehicle, storage medium, and program product Technical Field The present application relates to the field of vehicle technologies, and in particular, to a vehicle control method, device, vehicle, storage medium, and program product. Background With the rapid development of vehicle technology, consumer demands for comfort and intelligence of the vehicle are also increasing, in which context predictive adaptive cruise control (PREDICTIVE ECONOMIC CRUISE CONTROL, PECC) systems are introduced. PECCs are able to make predictions of road conditions, such as curves, uphill slopes, downhill slopes, etc., based on which the speed profile of the vehicle is optimized to achieve more intelligent, efficient and safe driving. However, due to the limited path planned by the PECC system, the characteristics of the road itself, and some condition limitations during the planning process, there may occur a problem that the torque corresponding to the vehicle speed planned by the PECC system is not within the economic torque interval, resulting in excessive fuel consumption of the vehicle. Disclosure of Invention The application provides a vehicle control method, a device, a vehicle, a storage medium and a program product, which can realize dynamic regulation and control of vehicle engine torque, avoid unnecessary speed up or speed down and save oil consumption. In a first aspect, an embodiment of the present application provides a vehicle control method applied to a vehicle, the vehicle being deployed with a predictive adaptive cruise control PECC system, the method comprising: acquiring the average speed of the vehicle in a preset distance length; according to the relation between the average speed of the vehicle in the preset distance length and the preset target speed, the torque of the vehicle engine is adjusted; wherein the preset distance length includes any one of a first distance length before the current position of the vehicle, a second distance length after the current position, or a sum of the first distance length and the second distance length. In an alternative embodiment of the first aspect, the second distance length is a distance length of a position corresponding to an end of the uneconomic torque zone predicted by the PECC system from a current position of the vehicle. In an alternative embodiment of the first aspect, adjusting the torque of the vehicle engine according to the magnitude relation between the average speed of the vehicle over the preset distance length and the preset target speed includes: if the average speed of the vehicle in the preset distance length is greater than the preset target speed, and the difference value between the average speed of the preset distance length and the preset target speed is greater than or equal to a first value, the current torque of the vehicle engine is adjusted, and the first value is a positive value. In an optional embodiment of the first aspect, if the average speed of the vehicle over the preset distance length is greater than the preset target speed, and a difference between the average speed of the preset distance length and the preset target speed is greater than or equal to a first value, adjusting the current torque of the vehicle engine includes: if the average speed of the vehicle in the preset distance length is greater than the preset target speed, the difference value between the average speed of the preset distance length and the preset target speed is greater than or equal to a first value, the current torque of the vehicle engine is in a first torque interval, and the torque of the vehicle engine is set to be 0; The first torque interval is determined according to the current rotation speed of the vehicle engine, and the first torque interval is used for indicating the numerical range of uneconomic torque corresponding to the current rotation speed. In an alternative embodiment of the first aspect, adjusting the torque of the vehicle engine according to the magnitude relation between the average speed of the vehicle over the preset distance length and the preset target speed includes: If the average speed of the vehicle in the preset distance length is smaller than the preset target speed, and the difference value between the preset target speed and the average speed of the preset distance length is larger than or equal to a second value, the current torque of the vehicle engine is adjusted, and the second value is a positive value. In an optional embodiment of the first aspect, if the average speed of the vehicle over the preset distance is less than the preset target speed and the difference between the preset target speed and the average speed of the preset distance is greater than or equal to the second value, the adjusting the current torque of the vehicle engine includes: If the average speed of the vehicle in the preset distance length is smaller than the preset target speed, the difference value betwe