Method for achieving automatic transmission (AT) low-speed mode on vehicle equipped with automated manual transmission

Abstract

The invention discloses a method for achieving the automatic transmission (AT) low-speed mode on a vehicle equipped with an automated manual transmission (including automatic mechanical transmission (AMT) / double clutch transmission (DCT)). The method comprises the following steps: demarcating operation parameters of the vehicle in accordance with preset values; setting a plurality of functional modules on the vehicle; and enabling or disabling the corresponding functional modules in the vehicle according to the hardware configuration of the vehicle, wherein the enabled functional modules are used for manipulating and controlling an engine, a clutch and an transmission of the vehicle respectively by using the obtained driving status information of the vehicle, so as to achieve the low-speed mode on the vehicle. The method provided by the invention can greatly improve the city low-speed driving and parking control performances of the vehicle equipped with the automated manual transmission without increasing cost, thus effectively upgrading the market competitiveness of products. Furthermore, the method provided by the invention has broad market promotion and application prospects because the technical effects have been certified by real vehicles.

Description

【Technical field】 [0001] The patent of the present invention relates to a method for realizing the slow running mode of a vehicle, in particular to a method for accurately coordinating and controlling an engine control module (ECM, Engine Control Model) and a transmission control module (TCM, Transmission Control Model), thereby being able to The creep mode of vehicles equipped with conventional automatic transmission (AT, Automatic Transmission) is realized on vehicles equipped with automatic manual transmission, so that it has the functions of helping the driver to park, store, and slope The invention belongs to the technical field of automobiles. 【Background technique】 [0002] With the continuous development of modern technology and the continuous improvement of people's living standards, the development of automotive technology can be described as rapid development. Especially China's auto industry has gradually developed into the world's second largest consumer since ...

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Problems solved by technology

[0006] In view of this, the object of the present invention is to provide a method for realizing the AT creep mode on a vehicle equipped with an automatic manual transmission, which can be flexibly adapted to different hardware (including AMT and DCT) vehicles equipped with an automatic manual transmission For example, the configuration of ESP, ABS, slope sensor, high-precision vehicle speed sensor and handbrake switch, etc.) has successfully solved the problem that existing vehicles equipped with automatic manual transmissions do not have conventional automatic transmissions on the driving interface. The same function of slow driving mode, which is not conducive to low-speed driving, hill driving and parking performance in complex urban road conditions

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