Method for defining clutch contact point and torsion characteristic curve

Abstract

The invention relates to a method for defining clutch contacting point and torque characteristic curve. The time proportion between engine rotating speed and input shaft of gearbox in phase or the proportion between acceleration of input shaft of gearbox and torque is made use of to calculate the torque proportion of clutch when the brake is joggled with the clutch in different positions. Then experiment or assumption of the relationship between the position of clutch and the torque is made use of to define the zero of clutch torque, which is the original contacting point of clutch, and the torque characteristic curve of clutch is calculated.

Description

Technical field [0001] The invention relates to a method for defining a clutch contact point and a torque characteristic curve, in particular to a method that does not require an external sensor and an electronic throttle valve, and can accurately define the initial contact point of the clutch of an automatic clutch vehicle by using calculation methods and experimental data verification Position to compensate for wear. Background technique [0002] Generally speaking, in an automatic clutch (Automated manual transmission / Automated clutch Manual Transmission) vehicle, the composition of the power system 10 is as follows: figure 1 As shown, it includes: an engine 11, a flywheel 12, a clutch 13, a gearbox 14, and a clutch actuator (Clutch Actuator) 15. The clutch 13 drives the clutch actuator 15 through a control unit 16 to push the clutch 13 to the control unit 16 The required position. When the driver 17 is in the driving condition of starting 171 or shifting 172, whenever the cl...

AI Technical Summary

Problems solved by technology

[0006] The disadvantage of this method is that it is susceptible to electromagnetic interference, and because the data is not easy to judge, the accuracy of the obtained results is relatively unstable

[0012] The disadvantage of this method is that it belongs to the earlier use method, because the definition method is relatively rough, so its accuracy is not good, and this method cannot be used to correct the clutch torque curve

[0018] The disadvantage of this method is that if the vehicle itself has no torque control module and no electronic throttle device, this type of control method will not be effective

[0021] Although this method is more accurate, its disadvantage is that the manufacturing cost is increased due to the need to install sensors

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