Hydraulic transmission control system of hydraulic automatic transmission of commercial vehicle
A technology of automatic transmission and hydraulic transmission, which is applied in the direction of transmission control, hydraulic resistance brake, transmission, etc., can solve the problems such as the inability to improve the working efficiency of the automatic transmission, the risk of oil leakage, and the complex assembly structure, and achieve improved Control accuracy and convenience, improve stability and accuracy, and simple oil connection
A technology of automatic transmission and hydraulic transmission, which is applied in the direction of transmission control, hydraulic resistance brake, transmission, etc., can solve the problems such as the inability to improve the working efficiency of the automatic transmission, the risk of oil leakage, and the complex assembly structure, and achieve improved Control accuracy and convenience, improve stability and accuracy, and simple oil connection
CN114576332APending Publication Date: 2022-06-03SHAANXI FAST GEAR CO
Image
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
[0026] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.
[0027] Thus, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary ski...
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
According to the hydraulic transmission control system of the hydraulic automatic transmission of the commercial vehicle, oil pumped out by an oil pump is divided into a plurality of paths, so that oil path connection between hydraulic elements is simpler and more visual, the phenomenon of oil pumping is avoided, the complexity of a hydraulic valve plate structure is reduced, and the reliability of the hydraulic valve plate structure is improved. More space layout application exists in the automatic transmission, and the axial size and the circumferential size of the whole box are shortened. And the retarder pressure control valve and the retarder switch control valve are simultaneously controlled through the retarder control electromagnetic valve, so that an oil path of the hydraulic control system is simple, the retarder switch control valve does not need to be independently controlled by an additional electromagnetic valve, and the use number of the electromagnetic valves and the complexity of the hydraulic oil path are reduced. The hydraulic control system of the automatic transmission is simple in structure, high in response speed and few in executive components, the control precision is high, meanwhile, enough stability is guaranteed, and therefore the mechanical and hydraulic transmission efficiency of the automatic transmission is improved.
Description
technical field [0001] The invention belongs to the field of automobile transmissions, and relates to a hydraulic transmission control system of a commercial vehicle hydraulic automatic transmission. Background technique [0002] Hydraulic transmission control system is an important system for automatic transmission to complete automatic shifting. The system can be divided into three parts: control, lubrication and cooling. Among them, the control function mainly means that when the flow of oil passes through each clutch and valve plate, it can drive the closing and opening of the clutch and the switching of the position of the valve plate and spool, so as to achieve the control effect. The lubricating function refers to the lubricating function provided by the oil when the oil flows through the internal parts of the transmission such as bearings, gears, clutches and bushings through specific oil passages. The cooling function is the heat exchange function, which can be div...
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
03 Jun 2022
Publication
CN114576332A
- IPC
- F16H41/24; F16D57/00; F16H61/02
- CPC
- F16H41/24; F16D57/00; F16H61/0265; F16D2121/02
- Inventors
- 张晨光; 严鉴铂