Control system for a contactor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 30, 2018
Issued Date -
N/A
app pub date -
Oct 27, 2016
filing date -
Oct 27, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An exemplary contactor control system and method to reduce the amount of sound during the translation of an automotive contactor from a closed state to an open state is provided. The contactor has an electrical coil and first and second electrical contacts. The control system includes a microcontroller and a high side driver circuit. The microcontroller generates a pulse width modulated signal that is applied to the high side driver circuit and decreases a duty cycle thereof to decrease a first control voltage applied to the electrical coil over a time interval. The microcontroller maintains a duty cycle for another time interval to maintain the contactor in the closed operational state. Next, the microcontroller decreases the duty cycle to reduce a speed of a contactor armature prior to contacting a stop member to reduce an amount of sound while transitioning the contactor to the open state.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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