Patent · US Active

Hydraulic control arrangement for an automated shift transmission

US8578800B2 · kind B2 · utility

2Cited by

2References

16Claims

0Family size

Assignee

Daimler AG · DE

Inventors

Markus Brandenburg · Eßlingen, DE
Benjamin Kemmner · Baden-Baden, DE
Jörg Schindler · Neutraubling, DE

Key dates

Filing date	Jul 22, 2011
Grant date	Nov 12, 2013
Priority date	—
Expiry date	Apr 24, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/20024
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

In a hydraulic control arrangement for an automated shift transmission, in particular a dual clutch transmission in a motor vehicle including a hydraulic control arrangement, the hydraulic control arrangement has a main pump and a controllable additional pump which jointly ensure that oil is supplied to the hydraulic control arrangement. The additional pump can feed into a control channel of a lubricating pressure slide and build up an adjustable lubricating fluid control pressure. The lubricating fluid pressure in the lubricating cooling system is adjusted in a simple and inexpensive manner by lubricating pressure slide changes modifying the lubricating control pressure in the lubricating cooling system.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.