SYSTEM AND METHOD FOR VEHICLE START-STOP
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United States of America Patent
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Issued Date -
May 14, 2015
app pub date -
Nov 8, 2013
filing date -
Nov 8, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A start-stop module for a vehicle can include a capacitor, one or more switches and a controller. The switches can be configured to connect the capacitor in parallel or in series with a battery of the vehicle. The controller can receive an input voltage having a magnitude based on a connection between the capacitor and the battery, and output a desired voltage that is appropriate for operating accessory loads of the vehicle. The controller can control the switches to switch between a standby mode and a cranking mode. The capacitor is in parallel with the battery in standby mode and in series with the battery in cranking mode. The controller can switch to the cranking mode when the engine is about to be restarted and return to standby mode after the engine has been restarted and when the battery voltage reaches the desired voltage for the accessory loads.
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