Intermediate shaft brake control method

A control method and intermediate shaft technology, applied in the direction of brake actuators, gear transmission mechanisms, mechanical equipment, etc., can solve the problems of unconsidered braking torque, shifting impact, long shifting time, etc., to overcome the braking time Long, prevent over-braking problems, reduce the effect of shifting impact

Pending Publication Date: 2022-04-22
FAW JIEFANG AUTOMOTIVE CO
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this patent does not consider that the release of the braking torque is nonlinear and related to the braking time. This control method will lead to problems su

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Intermediate shaft brake control method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0032] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clearly, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only the present invention. Some examples, but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of descri...

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

No PUM Login to view more

Abstract

The invention relates to the technical field of automatic transmission control, and discloses an intermediate shaft brake control method. The intermediate shaft brake is inflated by opening the air inlet electromagnetic valve and closing the air exhaust electromagnetic valve, and the intermediate shaft braking capacity is established; after a period of time, the air inlet electromagnetic valve and the exhaust electromagnetic valve are closed, so that the air pressure of the intermediate shaft brake is kept, and the intermediate shaft is braked with stable braking torque; before the intermediate shaft rotating speed reaches the intermediate shaft rotating speed control target value, an exhaust electromagnetic valve is opened, intermediate shaft brake exhaust and intermediate shaft braking release are carried out, and if the intermediate shaft rotating speed does not reach the intermediate shaft rotating speed control target value and intermediate shaft braking release is carried out, the process is repeated; and until the intermediate shaft rotating speed reaches the intermediate shaft rotating speed control target value. Rapid speed reduction of the intermediate shaft is achieved, the rotating speed control precision of the intermediate shaft is improved, and it is guaranteed that when the rotating speed of the intermediate shaft reaches the target rotating speed of the intermediate shaft, intermediate shaft braking is relieved.

Description

technical field [0001] The invention relates to the technical field of automatic transmission control, in particular to a method for controlling an intermediate shaft brake. Background technique [0002] The sliding gear shifting method is widely used in automatic transmissions. During the upshifting process of the automatic transmission adopting the sliding gear shifting method, the speed of the intermediate shaft is reduced so that the sliding gear gear can complete the shifting action under a suitable speed difference. When the shift speed difference is inappropriate, the shifting of the sliding gear sleeve will cause problems such as large shifting impact, shift failure or even damage to the sliding gear sleeve. In order to shorten the shifting time and quickly complete the deceleration of the intermediate shaft, the intermediate shaft brake with the wet friction plate as the braking element and the cylinder as the actuator is widely used in the automatic transmission th...

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
no application Login to view more
IPC IPC(8): F16D65/14F16D121/02
CPCF16D65/14F16D2121/02
Inventor 于跃李健华贾玉哲柳英杰张书郡费钟鸣谷守功高志飞孙国晖王巍巍
Owner FAW JIEFANG AUTOMOTIVE CO
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap