Engine oil consumption testing system based on signal biased amplifying

The invention discloses an engine oil consumption testing system based on signal biased amplifying. The engine oil consumption testing system mainly comprises a single chip microcomputer (1), a tested power platform, a tested engine, a testing and controlling instrument (4), a power analyzer (2), an accelerator driving instrument (5), a motor controller (3) and a fuel signal collection system (6), the tested engine is arranged on the tested power platform, the testing and controlling instrument (4) and the power analyzer (2) are connected with the single chip microcomputer (1), the accelerator driving instrument (5) is connected with the testing and controlling instrument (4), the motor controller (3) is connected with the power analyzer (2), the fuel signal collection system (6) is connected with a tested engine, and the testing and controlling instrument (4) is connected with the tested engine. The engine oil consumption testing system is characterized in that a fuel signal biased amplifying system (7) is arranged between the fuel signal collection system (6) and the single chip microcomputer (1). By the engine oil consumption testing system, undistorted amplifying of collected fuel signals can be realized, and influence, on oil consumption testing, of signal distortion is avoided, so that oil consumption testing accuracy is improved.