Electro-hydraulic control system for an electrically...

Planetary gear transmission systems or components – Fluid drive or control of planetary gearing – Fluid controlled mechanical clutch or brake

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C475S119000

Reexamination Certificate

active

11115102

ABSTRACT:
A powertrain has an electrically variable hybrid transmission having an electro-hydraulic control system, plurality of electrical power units, and a plurality of torque transmitting mechanisms selectively engageable by the electro-hydraulic control system to provide four forward speed ranges, a neutral condition, an electric low and high speed mode, an electrically variable low and high speed mode, and a hill hold mode. The electro-hydraulic control system permits operation in the electrically variable low mode of operation if the electrical power is interrupted when the powertrain is operating in the first forward range, electric low speed mode, electrically variable low speed mode, and hill hold mode. Additionally, the system permits operation in the electrically variable high speed mode of operation if the electrical power is interrupted when the powertrain is operating in the second through fourth forward range, electric high speed mode, and electrically variable high speed mode.

REFERENCES:
patent: 4070927 (1978-01-01), Polak
patent: 4827806 (1989-05-01), Long et al.
patent: 5601506 (1997-02-01), Long et al.
patent: 5616093 (1997-04-01), Long et al.
patent: 6520881 (2003-02-01), Long et al.
patent: 6569050 (2003-05-01), Suzuki et al.
patent: 6585617 (2003-07-01), Moorman et al.
patent: 7140993 (2006-11-01), Long et al.
patent: 2003/0078126 (2003-04-01), Holmes et al.
patent: 2006/0240938 (2006-10-01), Long et al.
patent: 2006/0240939 (2006-10-01), Foster et al.
patent: 2006/0246794 (2006-11-01), Foster et al.
patent: 2007/0049442 (2007-03-01), Long et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Electro-hydraulic control system for an electrically... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electro-hydraulic control system for an electrically..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electro-hydraulic control system for an electrically... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3933791

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.