CN-116608260-B - Gear shift control method, gear shift control device, vehicle and storage medium

CN116608260BCN 116608260 BCN116608260 BCN 116608260BCN-116608260-B

Abstract

The invention discloses a gear shifting control method, a gear shifting control device, a vehicle and a storage medium, wherein historical gear shifting down frequency of a target vehicle in a first preset time period can be obtained, the power demand type of the target vehicle in the first preset time period is determined based on the historical gear shifting down frequency in the first preset time period, when the power demand type belongs to the preset demand type, the gear shifting strategy of the target vehicle in a second preset time period is determined according to the power demand type of the target vehicle in the first preset time period, the gear shifting of the target vehicle is controlled according to the gear shifting strategy in the second preset time period, and the second preset time period is later than the first preset time period. The invention can automatically adjust the gear shifting strategy according to the driving power demands of different vehicle drivers, so that the drivers can accurately control the gear shifting of the vehicle without the need of customizing the driving power demand types before driving, and the fuel economy and the power performance of the vehicle are effectively improved.

Inventors

LI YAN
DAI CHAO
LI QI
CHEN GUODONG
ZHANG GUANGJUN
YANG YUNBO
WANG HAO
ZHAO HONGZHI
Lv Youzhi
HU XIAOBIN

Assignees

中国第一汽车股份有限公司

Dates

Publication Date: 20260505
Application Date: 20230602

Claims (9)

1. A shift control method, characterized by comprising: acquiring historical downshift frequency of a target vehicle in a first preset period; determining a power demand type of the target vehicle in the first preset period based on the historical downshift frequency in the first preset period; When the power demand type belongs to a preset demand type, determining a gear shifting strategy of the target vehicle in a second preset period according to the power demand type of the target vehicle in the first preset period; controlling the target vehicle to shift according to the shift strategy within the second preset period, wherein the second preset period is later than the first preset period; Wherein the preset demand type includes an economic demand type and a power demand type, and the determining a gear shift strategy of the target vehicle in a second preset period according to the power demand type of the target vehicle in the first preset period includes: when the power demand type is the economic demand type, adjusting a gear shifting strategy of the target vehicle in a first preset period according to the economic demand type to obtain an economic adjustment gear shifting strategy of the target vehicle in a second preset period; when the power demand type is the power demand type, adjusting a gear shifting strategy of the target vehicle in a first preset period according to the power demand type to obtain a power adjustment gear shifting strategy of the target vehicle in a second preset period; The step of adjusting the gear shifting strategy of the target vehicle in the first preset time period according to the economic demand type to obtain the economic adjustment gear shifting strategy of the target vehicle in the second preset time period comprises the following steps: setting an adjustment parameter candidate value and a gear shift parameter value range of an economic gear shift point; And determining the adjustment parameter target value of the economic gear shift point from the adjustment parameter candidate values of the economic gear shift point according to the gear shift parameter value range of the economic gear shift point.
2. The shift control method according to claim 1, characterized in that the determining the power demand type of the target vehicle in the first preset period based on the historical downshift in the first preset period includes: inquiring a preset corresponding relation based on the historical downshifting frequency in the first preset period to obtain the power demand type to which the historical downshifting frequency in the first preset period belongs; the preset corresponding relation comprises corresponding relation between each historical downshifting frequency and power demand type.
3. The shift control method according to claim 2, characterized in that the preset correspondence relationship is obtained as follows: Acquiring historical downshift frequency distribution data of a sample vehicle; and determining the preset corresponding relation according to the historical down-shift frequency distribution data of the sample vehicle.
4. The shift control method according to claim 1, wherein the setting of the adjustment parameter candidate value and the shift parameter value range of the economy shift point includes: reducing the gear shifting speed of the economic gear shifting point of the target vehicle in a first preset period to obtain an adjustment parameter candidate value of the economic gear shifting point; and multiplying the gear shifting speed of the economic gear shifting point in the first preset period by a preset economic gear shifting coefficient to obtain the gear shifting parameter value range of the economic gear shifting point.
5. The shift control method according to claim 1, wherein said adjusting a shift strategy of the target vehicle in a first preset period according to the power demand, to obtain a power-adjusted shift strategy of the target vehicle in a second preset period, comprises: Setting an adjustment parameter candidate value and a gear shift parameter value range of a power gear shift point; and determining the target value of the adjusting parameter of the power shifting point from the candidate value of the adjusting parameter of the power shifting point according to the range of the value of the shifting parameter of the power shifting point.
6. The shift control method according to claim 5, wherein setting the adjustment parameter candidate value and the shift parameter value range of the power shift point includes: The gear shifting speed of a power gear shifting point of the target vehicle in a first preset period is increased, and an adjustment parameter candidate value of the power gear shifting point is obtained; and multiplying the shift speed of the power shift point in the first preset period by a preset power shift coefficient to obtain the shift parameter value range of the power shift point.
7. A shift control device, characterized in that the device comprises: The acquisition module is used for acquiring historical downshifting frequency of the target vehicle in a first preset period; A first determining module configured to determine a power demand type of the target vehicle in the first preset period based on the historical downshift frequency in the first preset period; the second determining module is used for determining a gear shifting strategy of the target vehicle in a second preset period according to the power demand type of the target vehicle in the first preset period when the power demand type belongs to the preset demand type; the control module is used for controlling the target vehicle to shift according to the shifting strategy in the second preset period, and the second preset period is later than the first preset period; Wherein the preset demand type includes an economic demand type and a power demand type, the second determining module is specifically configured to: when the power demand type is the economic demand type, adjusting a gear shifting strategy of the target vehicle in a first preset period according to the economic demand type to obtain an economic adjustment gear shifting strategy of the target vehicle in a second preset period; when the power demand type is the power demand type, adjusting a gear shifting strategy of the target vehicle in a first preset period according to the power demand type to obtain a power adjustment gear shifting strategy of the target vehicle in a second preset period; The step of adjusting the gear shifting strategy of the target vehicle in the first preset time period according to the economic demand type to obtain the economic adjustment gear shifting strategy of the target vehicle in the second preset time period comprises the following steps: setting an adjustment parameter candidate value and a gear shift parameter value range of an economic gear shift point; And determining the adjustment parameter target value of the economic gear shift point from the adjustment parameter candidate values of the economic gear shift point according to the gear shift parameter value range of the economic gear shift point.
8. A vehicle comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the shift control method of any one of claims 1 to 6 when executing the program.
9. A computer-readable storage medium, on which a computer program is stored, characterized in that the program, when executed by a processor, implements the shift control method according to any one of claims 1 to 6.

Description

Gear shift control method, gear shift control device, vehicle and storage medium Technical Field The present invention relates to automatic transmission technology for automobiles, and more particularly, to a shift control method, apparatus, vehicle, and storage medium. Background With the popularity of automatic transmission vehicles, the demands for shifting the vehicle automatic transmission are also more intelligent. Conventional automatic transmission vehicles require a user to manually select a driving mode, and a fixed set of shift strategies are employed to shift the transmission according to the selected driving mode. The gear shifting mode enables all users to use the same gear shifting strategy set, has poor compatibility on the driving requirements of part of special users, cannot meet the driving requirements of all users in an adaptive manner, and enables some users to generate poor driving experience. Disclosure of Invention The invention provides a gear shift control method, a gear shift control device, a vehicle and a storage medium, which can solve the problem of poor compatibility of driving requirements of special users. In a first aspect, a shift control method provided by an embodiment of the present invention includes: acquiring historical downshift frequency of a target vehicle in a first preset period; determining a power demand type of the target vehicle in the first preset period based on the historical downshift frequency in the first preset period; When the power demand type belongs to a preset demand type, determining a gear shifting strategy of the target vehicle in a second preset period according to the power demand type of the target vehicle in the first preset period; and controlling the target vehicle to shift according to the shifting strategy in the second preset period, wherein the second preset period is later than the first preset period. In a second aspect, the present invention provides a shift control device comprising: The acquisition module is used for acquiring historical downshifting frequency of the target vehicle in a first preset period; A first determining module configured to determine a power demand type of the target vehicle in the first preset period based on the historical downshift frequency in the first preset period; the second determining module is used for determining a gear shifting strategy of the target vehicle in a second preset period according to the power demand type of the target vehicle in the first preset period when the power demand type belongs to the preset demand type; and the control module is used for controlling the target vehicle to shift according to the shifting strategy within the second preset period, and the second preset period is later than the first preset period. In a third aspect, the present invention provides a vehicle, where the vehicle includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the shift control method according to any one of the embodiments of the present invention when executing the program. In a fourth aspect, the present invention provides a computer readable storage medium having a computer program stored thereon, wherein the program when executed by a processor implements the shift control method according to any one of the embodiments of the present invention. According to the scheme, the historical downshift frequency of the target vehicle in the first preset time period can be obtained, the power demand type of the target vehicle in the first preset time period is determined based on the historical downshift frequency in the first preset time period, when the power demand type belongs to the preset demand type, the gear shifting strategy of the target vehicle in the second preset time period is determined according to the power demand type of the target vehicle in the first preset time period, the gear shifting of the target vehicle is controlled according to the gear shifting strategy in the second preset time period, and the second preset time period is later than the first preset time period. The invention can determine the power demand type and the gear shifting strategy of the vehicle in a future period based on the historical down-shift frequency and the power demand type of the vehicle, and automatically adjust the gear shifting strategy according to the driving power demands of different vehicle drivers, so that the drivers can accurately control the gear shifting of the vehicle without customizing the driving power demand type before driving, and the fuel economy and the power performance of the vehicle are effectively improved. Drawings In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present inventio