Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Hydraulic control system of hybrid transmission

A hydraulic control system and hybrid technology, applied in transmission control, clutch, fluid drive clutch, etc., can solve the problem of inability to meet the pressure/flow requirements of the dedicated hybrid transmission, and achieve compact structure, simple system and reduced cost. Effect

Pending Publication Date: 2021-05-11
GETRAG JIANGXI TRANSMISSION
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above situation, it is necessary to provide a hydraulic control system for a hybrid transmission to solve the problem that the existing hydraulic control system for a dedicated multi-gear hybrid transmission cannot meet the pressure / flow requirements of each working mode of a dedicated hybrid transmission. question

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
  • Hydraulic control system of hybrid transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing the embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0040] It should be noted that when an element is referred to as being “fixed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only. ...

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 discloses a hydraulic control system of a hybrid transmission. The system comprises an electronic pump, a mechanical pump, a clutch control valve, a fine filter, an oil cooler, a controller and a compensation control valve, an oil outlet of the electronic pump is connected with the clutch control valve to form a first control loop, and an oil outlet of the first control loop is used for a pressure cavity of a clutch; an oil outlet of the mechanical pump, the fine filter and the oil cooler are sequentially connected to form a first cooling and lubricating loop; the oil outlet of the mechanical pump is connected with a hydraulic pipeline to form a second cooling and lubricating loop, and the second cooling and lubricating loop is used for being connected with a balance cavity of the clutch; and the oil outlet of the electronic pump is connected with the compensation control valve to form a second control loop, the second control loop is connected with the fine filter through the compensation control valve, and the controller is used for obtaining the flow of the mechanical pump and controlling the compensation control valve to be powered on when the flow is smaller than the flow requirement requested by the system, so that the flow of the first cooling and lubricating loop is compensated through the electronic pump.

Description

technical field [0001] The invention relates to the technical field of transmission control, in particular to a hydraulic control system of a hybrid transmission. Background technique [0002] As the output of hybrid power systems continues to increase, the requirements for function, weight, layout and cost are getting higher and higher. The mechanical structure of a dedicated hybrid transmission integrating pure electric drive, hybrid power, engine drive, parking charging and other modes is relatively simple. The engine works efficiently in a specific working area, and the market demand is increasing year by year. It has become a hot spot in the current research on new energy vehicle technology, especially the research on hybrid transmission powertrain technology. [0003] The hydraulic control system of a multi-gear special hybrid transmission mainly includes pressure control for clutches, parking, and shifting, and cooling and lubrication control for motors, clutches, gea...

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): F16H61/00F16H57/04F16D25/12
CPCF16H61/0025F16H57/0404F16H57/0434F16H57/0473F16D25/123F16D25/14F16H2061/0037Y02T10/62
Inventor 傅斯龙傅娟梅自元钟维郭厚保张倩
Owner GETRAG JIANGXI TRANSMISSION
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com