| 摘要 |
The present invention provides a method and apparatus for detecting oil consumption for electronic fuel-injection vehicles. The apparatus comprises a vehicle electronic control device (1), an interface circuit (2), a single chip circuit (3), and a power supply (4). The interface circuit (2) is disposed between the vehicle electronic control device (1) and the single chip circuit (3). Driving pulse width Ti for the vehicle electronic control device (1) is obtained by single chip circuit (3) through the interface circuit (2). The single chip circuit (3) calculates the oil consumption according to equation q=Q(Ti-Tv) or a table of the realtionship between the Ti and the oil consumption established experimentally. A fuel temperature sensor (5) or a differential pressure sensor (6) for a nozzle is also provided to improve measuring accuracy of fuel consumption. The apparatus is used to detect oil consumption for electronic fuel-injection vehicles. With the apparatus, it is possible to achieve very high accuracy and resolution, itis real time and resistant to shocks, and its construction is simple, reliable and inexpensive.
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