Method and device for driving a capacitive control element

Details Method and device for driving a capacitive control element Method and device for driving a capacitive control element

1999-06-18

2000-12-05

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Capacitor charging or discharging

310316, H02J 700, H01L 4108

Patent

active

061571741

ABSTRACT:
In a drive process of a capacitive control element, especially for a fuel injection valve, a charging of a capacitor having a stipulated voltage is transferred during a stipulated charging time, at least partially, to the control element. A deviation of energy transferred to the control element in the charging time from an experimentally determined curve of stipulated, constant energy for the entire temperature range of the control element is corrected in the subsequent drive processes incrementally by a characteristic mapping of the control element voltage and time.

REFERENCES:
patent: 4935909 (1990-06-01), Matievic
patent: 4947074 (1990-08-01), Suzuki
patent: 5387834 (1995-02-01), Suzuki
patent: 5543679 (1996-08-01), Morino et al.
patent: 5796206 (1998-08-01), Asai et al.
patent: 5844792 (1998-12-01), Moreau
patent: 5852358 (1998-12-01), Ehsani

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