A shifting method for uphill mode of automatic transmission

A technology of automatic transmission and shifting method, which is applied in the direction of elements with teeth, transmission control, belt/chain/gear, etc., can solve the problem of inability to meet the range of different uphill slopes, and avoid frequent shifting. , to ensure the power, to ensure the effect of sufficiency and continuity

Active Publication Date: 2021-05-14
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a shifting method of the uphill mode of an automatic transmission to solve the problem that the existing shifting method cannot meet the range of different uphill slopes

Method used

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  • A shifting method for uphill mode of automatic transmission
  • A shifting method for uphill mode of automatic transmission
  • A shifting method for uphill mode of automatic transmission

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Embodiment Construction

[0042] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0043] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two ...

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Abstract

The invention belongs to the technical field of automatic transmissions, and discloses a shifting method for an uphill mode of an automatic transmission, comprising the following steps: obtaining a reference shift table; value to obtain the compound shift table; obtain the slope signal value, and judge whether the working mode of the automatic transmission is an uphill mode; if so, determine the new uphill type NewType of the automatic transmission according to the slope signal value; determine the actual slope type ActType of the automatic transmission , when the shifting conditions are met, shifting is performed according to the compound shift table corresponding to the actual slope type ActType. The beneficial effect of the present invention is to ensure the power sufficiency and continuity when shifting gears in the uphill mode; to avoid frequent changes of new uphill types caused by slope signal value jumps, and to avoid frequent gear shifts caused by uphill type switching.

Description

technical field [0001] The invention relates to the technical field of automatic transmissions, in particular to a gear shifting method in an uphill mode of an automatic transmission. Background technique [0002] Automatic transmission (such as AT, DCT, AMT, etc.) is a device that automatically shifts gears according to the vehicle speed and the opening of the accelerator pedal. The gear shift mode under slope conditions is related to the actual slope value of the road. For example, when going uphill, use uphill The shift table of the downhill mode is used to shift gears, and the shift table of the downhill mode is used to shift gears when going downhill. In the existing uphill mode, the uphill mode is divided into uphill mode 1 and uphill mode 2 according to the range of the slope, and the shift tables of the uphill mode 1 and the uphill mode 2 are determined through calibration. When the vehicle is driving uphill, select uphill mode 1 or uphill mode 2 according to the sl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/02F16H59/24F16H59/66
CPCF16H59/24F16H59/66F16H61/0204F16H2059/663F16H2061/0227
Inventor 李翰博赵令国刘国栋宁甲奎马岩李野
Owner CHINA FIRST AUTOMOBILE
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