Method and apparatus to control operation of a hydraulic control circuit for an electro-mechanical transmission
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 4, 2009
Grant Date -
Jul 31, 2008
app pub date -
Aug 4, 2006
filing date -
Aug 4, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
There is provided a control system for electro-mechanical transmission that is selectively operative in a plurality of fixed gear modes and continuously variable modes comprising first and second electrical machines and four hydraulically-actuated clutches in fluid communication with a hydraulic circuit comprising first, second and third pressure control devices and first and second flow management valves. The control system is operative to selectively actuate the pressure control devices and the flow management valves based upon a demand for torque, presence of a fault, and temperatures of the electric machines.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully