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A method and system for controlling torque of clutch in the early stage of vehicle creep

A clutch control and clutch torque technology, applied in the direction of clutch, mechanical equipment, etc., can solve the problems of reducing driving comfort, increasing vehicle fuel consumption, and high clutch torque, and achieving the effect of eliminating drag feeling, improving comfort, and long sliding distance.

Active Publication Date: 2017-12-01
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

In the early stage of the vehicle sliding into creeping motion from a higher speed, the clutch torque will be relatively high, making the vehicle speed higher. Higher pressure, through the anti-drag of the engine to achieve vehicle speed reduction, this method will cause the driver to feel that the vehicle is being dragged under such working conditions, reducing the comfort of driving, on the other hand, the vehicle speed decreases too quickly, Increased fuel consumption of the vehicle

Method used

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  • A method and system for controlling torque of clutch in the early stage of vehicle creep
  • A method and system for controlling torque of clutch in the early stage of vehicle creep
  • A method and system for controlling torque of clutch in the early stage of vehicle creep

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Embodiment Construction

[0038] In order to better understand the technical solution of the present invention, the solution will be further described in detail below in conjunction with specific embodiments.

[0039] refer to figure 1 , a kind of automobile creep initial stage clutch control method provided by the present invention, comprises following process:

[0040] Firstly, according to the vehicle operating parameters, it is judged whether the vehicle is in creep mode;

[0041] With the vehicle in creep mode, proceed as follows:

[0042] First check the oil filling state of the clutch, and judge whether the actual torque value of the clutch is greater than the oil filling torque. If not, it means that the clutch is in the creep oil filling control stage, and the initial creep clutch control will not be performed for the time being; if yes, continue to judge the actual torque value of the clutch Whether it is greater than the preset common creep torque. If the detected actual clutch torque valu...

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Abstract

The invention relates to the technical field of automobile control, and discloses a control method for clutch torque in the initial creep stage of an automobile. The control method comprises the steps that whether the automobile is in a creep mode or not is judged according to automobile running parameters; when the automobile is in the creep mode, the oil charge state of a clutch is detected, and under the condition that the actual torque value of the clutch is larger than oil charge torque and larger than preset common creep torque, a function for controlling the clutch torque in the initial creep stage is activated; then the actual torque value of the clutch is decreased progressively according to a torque variation function till the actual torque value is decreased to the common creep torque; and the function for controlling the clutch torque in the initial creep stage is turned off. According to the control method, the clutch in the initial creep stage is controlled in the manner of actively reducing the clutch torque, and driving comfort and fuel economical efficiency are improved. The invention further provides a control system for the clutch torque in the initial creep stage of the automobile. The control method can be achieved through the system.

Description

technical field [0001] The invention relates to the technical field of automobile control, in particular to a method and system for controlling clutch torque at the initial stage of automobile creep. Background technique [0002] Creeping occurs when the vehicle moves at a steady speed in low gears (1st, 2nd and R) without stepping on the accelerator or braking. In the early stage of the vehicle sliding into creeping motion from a higher speed, the clutch torque will be relatively high, making the vehicle speed higher. Higher pressure, through the anti-drag of the engine to achieve vehicle speed reduction, this method will cause the driver to feel that the vehicle is being dragged under such working conditions, reducing the comfort of driving, on the other hand, the vehicle speed decreases too quickly, Increased fuel consumption of the vehicle. Contents of the invention [0003] The object of the present invention is to provide a clutch torque control method and system a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D48/06
CPCF16D48/06F16D2500/50206F16D2500/50212F16D2500/50215F16D2500/70252F16D2500/7048F16D2500/70626
Inventor 桂鹏程
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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