Engine control based on flow rate and pressure for hydraulic hybrid vehicle
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 1, 2005
Grant Date -
Aug 4, 2005
app pub date -
Feb 1, 2004
filing date -
Feb 1, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A system for a hydraulically driven vehicle includes an engine having multiple, selectively operating cylinder-pump banks producing fluid flow at an outlet, a pump/motor having a variable flow rate including an inlet for driving the wheels, a hydraulic line having a line pressure and connecting the outlet and the inlet, sensors producing signal representing line pressure, pump/motor speed, pump/motor displacement, and a controller for determining a target hydraulic system parameter, determining, based at least in part on the flow rate of the pump/motor and a flow rate produced by each engine cylinder bank, a number of operating cylinder-pump banks that is required to produce the target hydraulic system parameter, and in response to determining the required number of operating cylinder-pump banks, adjusting an engine operating parameter of a cylinder-pump bank such that the required number of cylinder-pump banks operate.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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