A dual-clutch transmission pressure self-adaptive adjustment method and device
A dual-clutch transmission, self-adaptive adjustment technology, applied in transmission control, geared elements, belts/chains/gears, etc., can solve problems such as under-voltage and over-voltage in the working state of the clutch, and improve the efficiency of gear shifting The effects of smoothness, improved comfort, and reduced probability of shift shock or jitter
Active Publication Date: 2020-08-04
SAIC MOTOR
View PDF6 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] In view of this, the present invention provides a dual-clutch transmission pressure adaptive adjustment method and device to solve the problem that there may be under-pressure or over-pressure in the clutch working state when the torque phase is completed
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0048] The embodiment of the present invention discloses a dual-clutch transmission pressure adaptive adjustment method, the method flow chart of the method is as follows figure 1 shown, including the following steps:
[0049] S101, when it is detected that the torque phase is completed, respectively collect the rotational speed of the separation clutch and the rotational speed of the engine;
[0050] In the process of executing step S101, when it is detected...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a self-adaptive regulating method and device for dual-clutch gearbox pressure. The method comprises the following steps of: separately acquiring rotation speed of a separating clutch and rotation speed of an engine while detecting that a torque phase is accomplished; calculating rotation speed difference between the engine and the separating clutch; detecting a working combination state of a combination clutch according to the rotation speed difference, and regulating a pressure value of the combination clutch according to the detected results. Based on the method disclosed by the invention, the working state of the combination clutch is detected, and the pressure value of the combination clutch is regulated in a self-adaptive mode according to the detected results,so that an over-voltage or under-voltage condition, in a gear upshift process, of the combination clutch is effectively relieved and even avoided, and therefore, gear-shifting impact probability or shaking probability is reduced, and comfort and gear-shifting smoothness of the vehicle are improved.
Description
technical field [0001] The invention relates to the technical field of automobiles, and more specifically relates to a method and device for adaptively adjusting pressure of a dual-clutch transmission. Background technique [0002] Dual Clutch Transmission (DCT) is a kind of automatic transmission. With its advantages of high transmission efficiency, uninterrupted shifting and low cost, its market share in the automotive market is increasing year by year. [0003] When the car is in a positive torque state, the upshift of a dual clutch transmission generally includes two processes, namely, the torque phase and the speed phase; in the torque phase, the disengagement clutch corresponding to the lower gear is controlled to gradually transition to the engagement clutch corresponding to the higher gear , so that the torque transmitted from the low gear is gradually transmitted to the high gear, and in the speed phase, the speed of the control engine is synchronized with the speed...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/06F16H59/46
CPCF16H59/46F16H61/065F16H2061/0474
Inventor 冯巍侯伟
Owner SAIC MOTOR