System and method for controlling pump performance in a transmission
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 10, 2020
Grant Date -
Jun 27, 2019
app pub date -
Mar 5, 2019
filing date -
Mar 14, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A hydraulic system of a transmission having a controller and a variable displacement pump. The pump includes an inlet and outlet and is adapted to be driven by a torque-generating mechanism. The system also includes a lube circuit fluidly coupled to the pump. A lube regulator valve is disposed in the lube circuit, such that the lube regulator valve is configured to move between at least a regulated position and an unregulated position. The regulated position corresponds to a regulated pressure in the lube circuit. A pressure switch is fluidly coupled to the lube regulator valve and configured to move between a first position and a second position, where the switch is disposed in electrical communication with the controller. A solenoid is disposed in electrical communication with the controller and is controllably coupled to the pump to alter the displacement of the pump.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2019 Application Filing Year
- F01M Class
- 328 Applications Filed
- 226 Patents Issued To-Date
- 68.91 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F01M Class
- 0 % this patent is cited more than
- 5 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | May 10, 2028 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 10, 2032 |
