Patent ID: 8381521

Claim:
A system for increasing vehicle performance using pneumatic boosting, comprising: an engine having an intake, an exhaust and an exhaust gas recirculation passage for recirculation of a portion of exhaust gases from the engine from the exhaust to the intake; an air control device located in the intake, the air control device including an intake block-off element located in an intake passage of the air control device, the intake block-off element being arranged to move at least between open and closed positions to selectively block or allow air flow through the air control device toward the engine, at least one compressed air injection passage open to the intake on an engine side of the intake block-off element, the compressed air passage having at least one compressed air flow control valve arranged to modulate compressed air flow provided to the air control device into the intake, and a passage open to the intake on the engine side of the intake block-off element through which exhaust gases passing through the exhaust gas recirculation passage are introduced into the intake; a compressed air source arranged to provide compressed air flow to the air control device; a pneumatic booster injection controller; wherein the pneumatic booster controller is programmed to control a pneumatic boost event based on at least one monitored operating parameter of the vehicle by coordinating the operation of the at least one compressed air flow control valve and the intake block-off element to supply compressed air to the engine via the intake, and the pneumatic booster injection controller is programmed to control the at least one compressed air flow control valve to provide the compressed air injection by adjusting at least two of compressed air injection rate, duration and timing of at least two air injection pulses during said pneumatic boost event so as to maintain the at least one monitored operating parameter of the vehicle within a predetermined range.