METHOD FOR MANAGING THE SUPPLY VOLTAGE OF A MICROCONTROLLER FOR AN ELECTRONIC COMPUTER OF A MOTOR VEHICLE
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United States of America Patent
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Issued Date -
May 9, 2013
app pub date -
Jun 14, 2011
filing date -
Jun 24, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for managing the power supply voltage (Vs) of an electronic computer of a motor vehicle, the electronic computer including: a microcontroller, a power supply circuit powered by a battery and supplying the microcontroller with a power supply voltage regulated by a regulator having a nominal regulation frequency (FREF) set by a clock, at least one electronic component connected to the microcontroller and the power supply circuit which supplies it with a regulated power supply voltage, a element of communication between the microcontroller and the power supply circuit, the method includes:
- identification of an imminent modification of the current demand,sending an instruction to increase the FREF,increasing its FREF to a higher regulation frequency (FACCEL), for a predetermined time period (T) measured by the internal clock,when T has elapsed, lowering the higher regulation frequency (FACCEL) to its nominal regulation frequency (FREF).
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