ELECTRONIC COMPRESSOR FOR REDUCTION OF COLD START EMISSION AND NOISE VIBRATION AND HARSHNESS
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United States of America
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Issued Date -
Apr 3, 2025
app pub date -
Sep 28, 2023
filing date -
Sep 28, 2023
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Abstract
An engine system that delivers torque to a driveline of a vehicle includes an internal combustion engine (ICE), a manifold, a compressor and a controller. The manifold selectively communicates air into the ICE. The compressor is driven by an electric motor and is configured to deliver air toward and away from the manifold. The controller determines an ICE start request and, based on the ICE start request, sends a signal to the electric motor to rotate the compressor in a direction that moves air out of the manifold. The eCompressor is used to deplete air in the manifold before starting the ICE. As a result, a reduction in fuel used and therefore a reduction in emissions at startup is achieved.
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