Electricity: battery or capacitor charging or discharging – Battery or cell discharging – With charging
Patent
1998-10-22
2000-07-18
Tso, Edward H.
Electricity: battery or capacitor charging or discharging
Battery or cell discharging
With charging
320DIG21, 324430, H01M 1044, H01M 1046
Patent
active
060912286
ABSTRACT:
A controller for a hybrid electric system such as a hybrid electric vehicle includes a load, a battery, and a controllable source of auxiliary electricity. The state of charge (SOC) of the battery is estimated, and an error signal is generated which represents the difference between a desired and actual SOC. The SOC error signal is processed by at least integration, to produce a source signal representing the desired auxiliary source current. A second error signal is generated between the actual current. from the auxiliary source and the desired current from the auxiliary source. The second error signal is processed, at least by integration, to produce a control signal for controlling the auxiliary signal source.
REFERENCES:
patent: 3895284 (1975-07-01), Schweizer et al.
patent: 4433278 (1984-02-01), Lowndes et al.
patent: 4937528 (1990-06-01), Palanisamy
patent: 5488300 (1996-01-01), Jamieson
patent: 5659240 (1997-08-01), King
Chady Christine Marie
Grewe Timothy Michael
Lyons Arthur Paull
Krauss G. H.
Lockheed Martin Corp.
Meise W. H.
Tso Edward H.
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