Virtual clutch switch and method for improving vehicle shifting smoothness by arranging same
A clutch switch and smoothness technology, which is applied in vehicle components, control devices, transportation and packaging, etc., can solve the problems of inability to install hardware clutch switches, different control technology principles, and increased costs, etc., and achieve good popularization and application. Prospect, Lower Manufacturing, Effect of Lower Fuel Consumption Performance
Active Publication Date: 2012-05-30
SAIC GENERAL MOTORS +1
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Problems solved by technology
However, due to the high manufacturing and maintenance costs of traditional hardware clutches, their control technology principles are different, and their emphases are different, which makes the versatility of different hardware clutches very poor.
Moreover, for the control system similar to the pull-wire clutch, it is impossible to pack the traditional hardware clutch switch into it at all, and adding this type of hardware clutch switch will also increase additional cost expenses, which is very important for low-priced cars. It is like pressing water in a dry towel, and it is difficult to further reduce its cost
Method used
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[0042] Throughout the text, the term "enabling the virtual clutch switch" means that the virtual clutch switch has met the operating requirements but has not yet operated. The term "activating the virtual clutch switch" means that the virtual clutch switch is controlled to start working.
[0043] see figure 1 , which is a schematic diagram of the composition structure of a preferred embodiment of the virtual clutch switch of the present invention, the virtual clutch switch 1 is installed in the automobile engine control system, so as to completely replace the general hardware in the prior art The clutch switch realizes all its functions. Such as figure 1 As shown, the virtual clutch switch 1 includes: a timer 11 , a switch unit 12 , a clutch state determination unit 13 and an activation unit 14 , and these components will be described in detail below.
[0044]In this preferred embodiment, the timer 11 is set to count time when judging the stability of the virtual clutch swi...
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The invention relates to a virtual clutch switch, which is arranged in a vehicle control system, is used for realizing the function of a hardware clutch switch and comprises: a switching unit, an activating unit, a timer and a clutch state judging unit. The invention further relates to a method for improving vehicle shifting smoothness by arranging the virtual clutch switch. The method comprises the following steps of: calibrating the running parameter of a vehicle, wherein a calibration value of the running parameter is obtained through a total vehicle match test; and judging the state of a clutch by using the virtual clutch switch in a traveling shifting process, enabling the virtual clutch switch, quickly reducing an engine torque to a lower limit torque value of a set gear under different gears, and entering transition torque control to preventing sudden reduction of a load caused by clutch separation from leading to quick rise of an engine rotating speed by quickly lowering the engine rotating speed, so that the vehicle shifting smoothness is improved. Due to the adoption of the virtual clutch switch and the method, cost can be reduced effectively, and the driving property, emission and oil consumption performance of the vehicle can be improved.
Description
【Technical field】 [0001] The invention relates to a clutch switch, and also relates to a method for improving the smoothness of gear shifting of a vehicle. More specifically, the present invention relates to a virtual clutch switch for replacing a traditional hardware clutch switch function, and a method for improving the smoothness of gear shifting of a vehicle by installing the virtual clutch switch. 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 automobile industry has gradually developed into the world's second largest automobile consumer since entering the 21st century. However, with the increasing shortage of oil resources on the earth and the continuous improvement of users' technical requirements for automobile...
Claims
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IPC IPC(8): B60K23/02
Inventor 仇杰
Owner SAIC GENERAL MOTORS