초록 ▼

A device and method for supplying fresh air to a turbocharged piston internal combustion engine are described. According to the invention, a fresh gas line section of an intake manifold has an adjustable flap, and inlet and outlet ports. An adjustment device is coupled to the flap for adjusting the

A device and method for supplying fresh air to a turbocharged piston internal combustion engine are described. According to the invention, a fresh gas line section of an intake manifold has an adjustable flap, and inlet and outlet ports. An adjustment device is coupled to the flap for adjusting the flap. A compressed air port having an opening leading into a chamber of the fresh gas line between the flap and the outlet is provided, and a quantity regulating device with a valve to control the compressed air is also provided. An electronic control unit controls the quantity regulating device and the adjustable flap, so that the fully opened position of the flap corresponds to a fully blocked position of the quantity regulating device.

대표청구항 ▼

What is claimed is: 1. A device for supplying fresh air to a turbocharged piston internal combustion engine, comprising: a fresh gas line section of an intake manifold having an adjustable flap and a first end port for flowing in, and a second end port for flowing out; an adjustment device coupled

What is claimed is: 1. A device for supplying fresh air to a turbocharged piston internal combustion engine, comprising: a fresh gas line section of an intake manifold having an adjustable flap and a first end port for flowing in, and a second end port for flowing out; an adjustment device coupled to the adjustable flap for continuously adjusting the adjustable flap; a compressed air port having an opening leading into a chamber of the fresh gas line between the adjustable flap and the second end port; a quantity regulating device of the compressed air port having a valve, the valve continuously movable to a blocked position and multiple open positions; and an electronic control unit for actuating the quantity regulating device using an electric input connected thereto, wherein the electronic control unit being programmed to receive a torque request and to initiate a compressed air addition event, wherein at least one of the electronic control unit and the quantity regulating device is configured to communicate with the adjustment device of the adjustable flap during the compressed air addition event, the at least one of the electronic control unit and the quantity regulating device being programmed to determine and to command the position of the adjustable flap and the amount of compressed air to be fed during the compressed air addition event, and either to command the adjustable flap to a fully closed position in coordination with the quantity regulating device being commanded to a fully open position, or to command the adjustable flap to an intermediate position between the open and closed positions in coordination with the quantity regulating device being commanded to an intermediate position between open and closed positions, and when the one of the quantity regulating device and the electronic control unit commands the adjusting device of the adjustable flap to the intermediate position between the open and closed positions, the intermediate position is determined as a function of at least one of the torque request and a fresh gas pressure in the fresh gas line section. 2. The device as claimed in claim 1, wherein an input terminal of the electronic control unit is operatively connected to an output of a first pressure pickup having a first pressure meter, the first pressure meter being arranged in the tubular interior between the adjustable flap and the first end port, and to an output of a second pressure pickup having a second pressure meter, the second pressure meter being arranged in the tubular interior between the adjustable flap and the second end port. 3. The device as claimed in claim 1, wherein, in the electronic control unit, a torque request signal originates from the at least one of an accelerator pedal, a traction controller, a cruise controller, an electric stability program, and elements for providing an external torque request to the engine control system. 4. The device as claimed in claim 1, wherein the adjustment device comprises a position determining sensor for direct activation by the electric control unit. 5. A method for improving acceleration behavior and emission behavior of a vehicle piston internal combustion engine with turbocharging, comprising the acts of: providing with a compressed air accumulator in which compressed air is stored, and in a regulated manner, for blowing-in compressed air into a fresh gas line section of an engine cylinder; determining a torque request signal and providing associated data to an electronic control unit; determining engine characteristic values and providing the characteristic values to the electronic control unit; determining a first air pressure value in an interior of an intake line between a cylinder inlet valve and a continuously adjustable flap of the fresh gas line section; determining a second air pressure value in an interior of an intake line between the adjustable flap and a turbo-compressor; providing the first and second pressure values to the electronic control unit; and processing the torque request signal, engine characteristic values and the pressure values in the electronic control unit to generate activation output signals for initiating a compressed air addition event by operating a continuously adjustable valve for blowing-in compressed air from the compressed air accumulator into the fresh gas line section to begin a blowing-in process, and for simultaneously activating the continuously adjustable flap in the closing direction when starting the blowing-in process, wherein the activation of the continuously adjustable valve and the continuously adjustable flap are coordinated by the electronic control unit as a function of at least one of the torque request signal and the first and second pressure values such that movement of the continuously adjustable flap to an intermediate position between the open and closed positions is conducted in coordination with actuation of the continuously adjustable valve between open and closed positions of the continuously adjustable valve. 6. The method as claimed in claim 5, further comprising generating activation output signals for operating the continuously adjustable flap in the opening direction when terminating the blowing-in process. 7. The method as claimed in claim 5, further comprising: monitoring actuation of a driver's accelerator pedal for a driver's request for acceleration; determining an average frequency of the driver's request for acceleration by software in the control unit; regulating of the blowing-in of compressed air and activation of the continuously adjustable flap in accordance with the determined average frequency of the driver's request for acceleration such that air consumption is maintained within defined limits during supply of compressed air in the air blowing-in process in response to a current driver's request for acceleration so as to prevent an abrupt change in duration of the air blowing-in process. 8. The method as claimed in claim 5, wherein the engine is a diesel engine. 9. A turbocharged internal combustion engine comprising: an intake manifold having a fresh gas line section conveying a fresh gas from a turbocharger to an outlet of the fresh gas line section; a continuously adjustable flap disposed in the fresh gas line section for controlling a flow of the fresh gas from the turbocharger; a continuously adjustable quantity regulating device for controlling a flow of compressed air into the fresh gas line section via a port opening disposed between the adjustable flap and the outlet; and an electronic control unit for controlling actuation of the adjustable flap and of the quantity regulating device, the electronic control unit being programmed to receive in response to a torque request signal, pressure values in the fresh gas line section and engine characteristic values and to initiate a compressed air addition event, wherein the adjustable flap is activated by one of the quantity regulating device and the electric control unit as a function of at least one of the torque request signal, pressure values in the fresh gas line section and engine characteristic values such that movement of the adjustable flap to an intermediate position between the open and closed positions is coordinated with actuation of the quantity regulating device between open and closed positions of the quantity regulating device. 10. The turbocharger engine according to claim 9, further comprising an adjustment device coupled to the adjustable flap for positioning the adjustable flap between an open and a closed position. 11. The turbocharger engine according to claim 9, further comprising a valve of the quantity regulating device moveable between open and closed positions. 12. The turbocharger engine according to claim 9, wherein the electronic control unit commands the adjustable flap to an open position when the quantity regulating device is in a fully blocked position. 13. The turbocharger engine according to claim 10, wherein the electronic control unit commands operation of the quantity regulating device, and the adjustment device operates in response thereto. 14. The turbocharger engine according to claim 9, wherein the electronic control unit regulates supply of compressed air to the fresh gas line based on a determined average frequency of compressed air requests initiated by a driver's acceleration pedal. 15. The turbocharger engine according to claim 9, wherein the electronic control unit regulates supply of compressed air to the fresh gas line based on available compressed air for braking.