A speed-based clutch control method

A clutch control and clutch technology, applied in clutches, electric clutches, non-mechanical drive clutches, etc., can solve the problems of embedded single-chip microcomputer limitation and large amount of calculation, so as to overcome the delay of the controller single-chip microcomputer, have strong real-time performance, and realize dynamic performance. Effect

Inactive Publication Date: 2011-12-14
BEIJING UNIV OF TECH
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AI Technical Summary

Problems solved by technology

In recent years, many researchers at home and abroad have conducted a lot of research on clutch control, and proposed fuzzy control, ne...

Method used

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  • A speed-based clutch control method
  • A speed-based clutch control method
  • A speed-based clutch control method

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Embodiment Construction

[0041] The invention is further elaborated below, and the present invention has adopted electric automatic clutch. Such as figure 1 As shown, the electric automatic clutch system is composed of servo motors, couplings, ball screws and other mechanisms, and is equipped with encoders, position sensors, and limit sensors. In the present invention, a 16-bit microcontroller of the FreeScale MC9S12DT128 type sends out pulse signals to control the motion of the servo motor, and the rotation of the servo motor drives the ball screw to convert the rotary motion into a forward and backward linear motion. Through the linear motion of the ball screw, the release lever of the clutch is pushed to realize the separation and combination of the clutch. When the single-chip microcomputer sends out a pulse, it also sends out a high level or a low level to control the rotation direction of the servo motor and realize the forward and backward of the ball screw. The pulse amount sent by the encod...

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Abstract

The invention relates to a control method of a clutch based on revolving speed and belongs to the field of clutch control. The control method provided by the invention is characterized that a clutch MAP figure control strategy is adopted in slipping stage of a clutch, the MAP figure lookup calculation is carried out according to the revolving speed difference of an output torque of the clutch and the input shaft of the clutch and the output shaft of the clutch, thereby controlling the position of the clutch; and driving intention of a driver is judged to output a clutch rotation speed target value curve according to the size and variable rate of an engine throttle; the D-value of the target value and actual value of the clutch revolving speed is calculated by virtue of PID (proportion integration differentiation), the position of the clutch is subjected to fine tuning, thereby meeting different driving intentions and travelling conditions. Compared with fuzzy control and a neural network, the control method provided by the invention has the advantages of small computational load, simple structure, and strong control instantaneity, and overcomes the delay problem of a controller singlechip caused by complicated control, and overcomes the influence from the variation in load of vehicles on the combined process; the dynamic property and economy of the automobile are unified by virtue of building MAP on a great deal calibration test, and the relation of the parameter characteristic and control objective in control process is clear and definite.

Description

technical field [0001] The invention relates to a clutch control method, in particular to a speed-based clutch control method. Background technique [0002] The electromechanical automatic transmission (AMT) is based on the traditional mechanical transmission (MT), and the electronic control system (TCU) is added to simulate the driver's operation intention, realize the separation and combination of the clutch, and select and shift the gear. automatic transmission. AMT has a simple structure and low cost, can realize the transmission of high torque, improve the driving performance of the car, and can be widely used in various light and heavy passenger cars, trucks, and buses. At present, my country has become a country with a large number of automobiles in the world, and AMT is more and more favored by the automobile industry, which makes AMT have a good development prospect. [0003] Clutch control is the core content of current AMT control, and it is also a difficult poi...

Claims

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Application Information

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IPC IPC(8): F16D28/00
Inventor 吴斌施泰峰林文尧王显雨
Owner BEIJING UNIV OF TECH
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