Method and device capable of flexibly adjusting limit output power of internal combustion engine

Abstract

The invention relates to a method and device capable of flexibly adjusting the limit output power of an internal combustion engine. The device comprises a gas supply device for supplying gas to the combustion chamber of the internal combustion engine, and is characterized in that the gas supply device comprises a master pipe communicated with the combustion chamber of the internal combustion engine, a cold air branch pipe, a hot air branch pipe, a cooling device, an electrically operated valve, a filter and a control device; one end of the cold air branch pipe and one end of the hot air branch pipe are connected with the master pipe through the electrically operated valve; the cold air branch pipe and the hot air branch pipe are connected with the filter; the cooling device is arranged between the electrically operated valve and the filter; and the output of electric signals is connected with the input of electrically operated valve signals through the control of the control device. Compared with the prior art, the invention has the advantages that the cold-hot conversion can be carried out rapidly, the limit output power of the internal combustion engine can be rapidly enhanced, and the limit output power of the internal combustion engine can be rapidly reduced at the time.

Description

Technical field: [0001] The invention relates to a method and device for flexibly controlling the limit output power of an internal combustion engine. Background technique: [0002] The output power of the internal combustion engine is generally controlled by the intake valve of the internal combustion engine, which is controlled by adjusting the intake air volume and matching the fuel injection volume. The limit output power of a conventional internal combustion engine is limited to the capacity of the cylinder. However, the methods for improving the limit output power of internal combustion engines include turbocharging methods and cooling intake air methods. There are two methods of turbocharging, one uses exhaust gas to drive the turbine to increase the intake pressure; the other uses the motor to drive the turbine to increase the intake pressure, and increases the intake air volume per unit time by increasing the intake pressure , correspondingly increase the fuel inj...

AI Technical Summary

Problems solved by technology

However, the control of the temperature rise and fall is realized in the same device before and after the throttle valve. Due to the existence of the heat capacity of the device, it is impossible to achieve rapid conversion, and the intake air temperature cannot be adjusted flexibly.

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