Automobile crankshaft information acquisition device

Abstract

The invention discloses an automobile crankshaft information acquisition device. The device involves a crankshaft, and is characterized in that a silicon oil damper is arranged at the maximum positionof the torsional vibration amplitude of the front end of the crankshaft; the silicon oil damper comprises a sealing shell which is fixedly connected with the crankshaft, signal convex teeth which aredistributed at intervals are arranged on the circumferential surface of the sealing shell in a surrounding mode, every two signal convex teeth are combined into a positioning tooth corresponding to an upper stopping point of a first cylinder of an engine, and a sensor is arranged on one sides of the signal convex teeth. The device has the advantage that according to the requirement that the damper needs to be arranged in an automobile, the signal convex teeth are arranged on the shell of the damper, the sensor is cooperatively arranged, so that when the engine operates, the engine can be subjected to torsional damping through the damper, the crankshaft position and the rotating speed information can be obtained, no additional crankshaft signal disc needs to be installed, and the space andthe material cost are saved.

Description

technical field [0001] The invention relates to an acquisition device for the working condition of an automobile engine, in particular to an acquisition device for automobile crankshaft information. Background technique [0002] With the increasingly stringent environmental protection regulations and higher energy-saving requirements, the engines in high-power automobile engines must adopt electronic control technology, that is, use various sensors to obtain basic signals that reflect the actual working conditions of the engine with engine speed and load , refer to the fuel injection quantity and fuel injection timing map corresponding to each working condition of the engine obtained from the test to determine the basic fuel injection quantity and fuel injection timing, and then according to other various factors (such as water temperature, oil temperature, air pressure, etc.) to make various compensations to determine the best fuel injection quantity and fuel injection timi...

AI Technical Summary

Problems solved by technology

[0003] The current acquisition device is to use a crankshaft signal plate, which is screwed to a position that has a precise transmission relationship with the crankshaft for different models, such as behind the pulley at the front end of the crankshaft, on the front end of the camshaft, on the flywheel of the gearbox clutch housing or In the distributor, but they occupy less space, material cost, use and assembly maintainability, etc.

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