Energy management system
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United States of America Patent
Stats
-
Mar 30, 2004
Grant Date -
Dec 6, 2001
app pub date -
Mar 2, 2001
filing date -
Sep 3, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An energy management system operable in three modes of operation to either drive or retard the drive shaft (110) of a vehicle, or in a neutral mode, to have no driving or retarding influence on the drive shaft. The system includes energy accumulating means (100, 101) which is operable to store and release energy through receipt and release of fluid, pumping means (104) in fluid communication with the energy communication means (100, 101), a reservoir (107) of fluid in communication with the pumping means (104), and coupling means for coupling the pumping means (110) to the drive shaft (110). Whereby in the retarding mode of the system, the drive shaft (110) drives the pumping means (104) to pump fluid to the energy accumulating means (100, 101), and whereby in the driving mode of the system, the energy accumulating means (100, 101) releases fluid to drive the pumping means (104) which drives the drive shaft (110). Whereby in the neutral mode of the system, the pumping means (104) is inoperative to exert any driving or retarding influence on the drive shaft (110). A retarding system is also provided, as is a terrain logging facility for logging the terrain of a route over which a vehicle travels.
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