Power supply control device for electric vehicle

Details Power supply control device for electric vehicle Power supply control device for electric vehicle

1996-11-25

1998-02-10

Tso, Edward

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 30, 320 43, 320 48, H01M 1046

Patent

active

057173109

ABSTRACT:
A power supply control device for an electric vehicle capable of reducing the power consumption in a battery monitor assembly adapted for monitoring a residual electric charge in a main battery 4. In response to an operation which causes increasing or decreasing the residual charge in the main battery 4, a start-up unit 200 produces a start-up demand pulse P3. Upon receiving the start-up demand pulse P3, a power supply controller circuit 60 closes a switch 59 to allow the power from a sub battery 5 to be supplied the battery monitor assembly 100. When the battery monitor assembly 100 is activated, its power supply maintaining means 102 delivers a self-hold signal S4 to maintain the switch 59 being closed. The battery monitor assembly 100 keeps monitoring the residual charge in the main battery 4 while it is energized by the sub battery 5.

REFERENCES:
patent: 3686549 (1972-08-01), Winebrener
patent: 5309073 (1994-05-01), Kaneko et al.
patent: 5350994 (1994-09-01), Kinoshita et al.
patent: 5446365 (1995-08-01), Nomura et al.
patent: 5488283 (1996-01-01), Dougherty et al.
patent: 5523670 (1996-06-01), Ninomiya

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