Method of controlling a combustion engine equipped with double supercharging
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United States of America Patent
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Jan 30, 2018
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app pub date -
Aug 12, 2013
filing date -
Sep 11, 2012
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Abstract
The invention relates to a method for controlling a combustion engine (1) equipped with a supercharging system, comprising a turbocharger (2) and a mechanical compressor (3) and a bypass circuit disposed in parallel with the mechanical compressor comprising a controlled bypass valve (4). The method includes:
- a) acquiring a boost pressure setpoint Psuralsp;b) converting the boost pressure setpoint Psuralsp into an opening setpoint Bypasssp of the bypass valve (4) using a filling model modelling the filling of the supercharging boost volume between the intake valves of the engine (1) and the mechanical compressor (3) and bypass valve (4); andc) controlling the bypass valve (4) is according to the opening setpoint Bypasssp of the bypass valve.
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