CN-116538287-B - Gear selecting method and device, electronic equipment and storage medium

CN116538287BCN 116538287 BCN116538287 BCN 116538287BCN-116538287-B

Abstract

The invention discloses a gear selection method, a gear selection device, electronic equipment and a storage medium, wherein the gear selection method is applied to an automatic transmission and comprises the steps of determining a fuzzy position of any gear region of the automatic transmission; and determining the gear selection target value of the corresponding gear region according to the upper limit value, the lower limit value, the upper edge deformation and the lower edge deformation of the actual gear selection region. According to the method, the actual gear selection space is determined based on the fuzzy position obtained by theoretical calculation, and the final gear selection target value of each automatic transmission is determined by combining the upper and lower edge deformation quantity and the upper and lower limit value of the actual gear selection space, so that the accurate gear selection position can be obtained for each transmission, and the problems of gear shifting difficulty and adjacent gear synchronizer abrasion caused by inaccurate gear selection positions are solved.

Inventors

HE ZIYANG
HU FENGBIN
ZHAO ZHIYUAN
WEI MINGMING
WEI YIZE
LI SHENGMIAO

Assignees

北汽福田汽车股份有限公司

Dates

Publication Date: 20260508
Application Date: 20230509

Claims (6)

1. A gear selection method, characterized by being applied to an automatic transmission, the method comprising: determining a fuzzy position of any one gear region of the automatic transmission; Determining an actual gear selection interval of a corresponding gear region according to the fuzzy position, and determining an upper edge deformation amount and a lower edge deformation amount according to a deformation curve of the actual gear selection interval; determining a gear selection target value of a corresponding gear region according to the upper limit value, the lower limit value, the upper edge deformation and the lower edge deformation of the actual gear selection region; And determining the upper edge deformation and the lower edge deformation according to the deformation curve of the actual gear selection interval, wherein the method comprises the following steps of: determining the mutation position of the deformation curve; determining the upper edge deformation and the lower edge deformation according to the mutation positions; Determining the abrupt location of the deformation curve, comprising: dividing the deformation curve into a plurality of sections, and calculating the slope of each section of curve; Determining a first mutation position and a second mutation position according to the slope of each curve, wherein the first mutation position is used for calculating the upper edge deformation amount, and the second mutation position is used for calculating the lower edge deformation amount; determining a gear selection target value of the corresponding gear region according to the upper limit value, the lower limit value, the upper edge deformation and the lower edge deformation of the actual gear selection region, wherein the method comprises the following steps: determining a difference value between the upper limit value of the actual gear selection interval and the upper edge deformation amount, and determining a sum value between the lower limit value of the actual gear selection interval and the lower edge deformation amount; Determining the gear selection target value according to the difference value and the sum value; Determining the gear selection target value according to the following formula: F=[(A-D)+(B+E)]/2+C, Wherein A is the upper limit value of the actual gear selection interval, B is the lower limit value of the actual gear selection interval, C is the variation value of the gear selection position in the gear shifting process under the coupling action, D is the upper edge deformation quantity, E is the lower edge deformation quantity, and F is the gear selection target value.
2. The gear selection method according to claim 1, wherein determining the upper edge deformation amount and the lower edge deformation amount according to the abrupt change position includes: respectively determining the inflection point value of the first abrupt change position and the inflection point value of the second abrupt change position; And determining the upper edge deformation amount according to the upper limit value of the actual gear selection interval and the inflection point value of the first abrupt change position, and determining the lower edge deformation amount according to the lower limit value of the actual gear selection interval and the inflection point value of the second abrupt change position.
3. The gear selection method according to claim 1, wherein the gear region of the automatic transmission includes a 1/2 gear region, a 3/4 gear region, a 5/6 gear region, and an R gear region.
4. A computer-readable storage medium, on which a gear selection program is stored, which gear selection program, when executed by a processor, implements a gear selection method according to any of claims 1-3.
5. An electronic device comprising a memory, a processor and a gear selection program stored on the memory and executable on the processor, the processor implementing the gear selection method according to any of claims 1-3 when executing the gear selection program.
6. A gear selection apparatus, characterized by being applied to an automatic transmission, comprising: the determining module is used for determining the fuzzy position of any gear area of the automatic transmission and determining the actual gear selection interval of the corresponding gear area according to the fuzzy position; the gear selection calculation module is used for determining an upper edge deformation amount and a lower edge deformation amount according to the deformation curve of the actual gear selection interval, and determining a gear selection target value of a corresponding gear area according to the upper limit value and the lower limit value of the actual gear selection interval and the upper edge deformation amount and the lower edge deformation amount; The gear selection calculation module is further used for: determining the mutation position of the deformation curve; determining the upper edge deformation and the lower edge deformation according to the mutation positions; The gear selection calculation module is further used for: dividing the deformation curve into a plurality of sections, and calculating the slope of each section of curve; Determining a first mutation position and a second mutation position according to the slope of each curve, wherein the first mutation position is used for calculating the upper edge deformation amount, and the second mutation position is used for calculating the lower edge deformation amount; The gear selection calculation module is further used for: determining a difference value between the upper limit value of the actual gear selection interval and the upper edge deformation amount, and determining a sum value between the lower limit value of the actual gear selection interval and the lower edge deformation amount; Determining the gear selection target value according to the difference value and the sum value; Determining the gear selection target value according to the following formula: F=[(A-D)+(B+E)]/2+C, Wherein A is the upper limit value of the actual gear selection interval, B is the lower limit value of the actual gear selection interval, C is the variation value of the gear selection position in the gear shifting process under the coupling action, D is the upper edge deformation quantity, E is the lower edge deformation quantity, and F is the gear selection target value.

Description

Gear selecting method and device, electronic equipment and storage medium Technical Field The application relates to the technical field of gearboxes, in particular to a gear selection method, a gear selection device, electronic equipment and a storage medium. Background In the related art, no good method exists for the gear selection position accuracy of the AMT (Automated Mechanical Transmission, mechanical automatic gearbox), basically, a general gear selection position is obtained through theoretical calculation, but the theoretical calculation has limitation, and the stress elastic deformation, the part matching, the assembly tolerance and the like of the part cannot be comprehensively covered and considered. Because of individual differences among different gearboxes, the theoretically calculated gear selection position is difficult to adapt to batch products. Disclosure of Invention The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, a first object of the present invention is to provide a gear selection method, which determines an actual gear selection space based on a fuzzy position obtained by theoretical calculation, and determines a final gear selection target value of each automatic transmission by combining upper and lower edge deformation amounts and upper and lower limit values of the actual gear selection space, so that an accurate gear selection position can be obtained for each transmission, and the problems of gear shifting difficulty and adjacent gear synchronizer abrasion caused by inaccurate gear selection positions are solved. A second object of the present invention is to propose a computer readable storage medium. A third object of the present invention is to propose an electronic device. A fourth object of the present invention is to propose another gear selection device. In order to achieve the above object, according to an embodiment of a first aspect of the present invention, a gear selection method is provided, which is applied to an automatic transmission, and the method includes determining a fuzzy position of any one gear region of the automatic transmission, determining an actual gear selection region of a corresponding gear region according to the fuzzy position, determining an upper edge deformation amount and a lower edge deformation amount according to a deformation curve of the actual gear selection region, and determining a gear selection target value of the corresponding gear region according to an upper limit value, a lower limit value, the upper edge deformation amount and the lower edge deformation amount of the actual gear selection region. According to the gear selection method of the embodiment of the invention, the fuzzy position of any gear zone of the automatic transmission is determined, the actual gear selection zone of the corresponding gear zone is determined according to the fuzzy position, the upper edge deformation quantity and the lower edge deformation quantity are determined according to the deformation curve of the actual gear selection zone, and the gear selection target value of the corresponding gear zone is determined according to the upper limit value and the lower limit value of the actual gear selection zone, the upper edge deformation quantity and the lower edge deformation quantity. Therefore, the fuzzy position is obtained based on theoretical calculation, then the actual gear selection space is obtained for the fuzzy position of each automatic transmission, and the final gear selection target value of each automatic transmission is determined by combining the upper and lower edge deformation amounts and the upper and lower limit values of the actual gear selection space, so that the accurate gear selection position can be obtained for each transmission, and the problems of gear shifting difficulty and adjacent gear synchronizer abrasion caused by inaccurate gear selection positions are solved. According to one embodiment of the invention, the upper edge deformation amount and the lower edge deformation amount are determined according to the deformation curve of the actual gear selection interval, and the method comprises the steps of determining the mutation position of the deformation curve, and determining the upper edge deformation amount and the lower edge deformation amount according to the mutation position. According to one embodiment of the invention, determining the abrupt change position of the deformation curve comprises dividing the deformation curve into a plurality of sections and calculating the slope of each section of curve, and determining a first abrupt change position and a second abrupt change position according to the slope of each section of curve, wherein the first abrupt change position is used for calculating the upper edge deformation quantity, and the second abrupt change position is used for calculating the lower edge deformation quantity.