| 摘要 |
PURPOSE: A system and a method for calculating an exhaustion flux of a vehicle by using exhaust pressure are provided to calculate exhaust flux by using existing devices without mounting a separate device required for calculating the exhaust flux, thereby reducing expenses for installing various kinds of sensors. CONSTITUTION: A system for calculating an exhaustion flux of a vehicle by using exhaust pressure comprises an exhaust pipe(10), a first pressure sensor(30), a second pressure sensor(40), a resistance body(20), and a control box(50). The first pressure sensor is mounted in an inlet of the exhaust pipe. The second pressure sensor is mounted in an outlet of the exhaust pipe. The resistance body is mounted in the inside of the exhaust pipe between the first and second pressure sensors, thereby generating a pressure difference of the exhaust pipe. The control box calculates the exhaust flux by using the pressure difference measured by the first and second pressure sensors. The control box controls an additive spraying unit(60) mounted in a front end or rear end of the first pressure sensor. [Reference numerals] (51) Receiving unit; (52) Pressure difference calculating unit; (53) Controlling unit; (AA) Inlet; (BB) Outlet
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