Self energetized, tamper-proof running time counter for determination of the total running time and of the wear of a IC-engine which is integrated in the motor block.

摘要

The method involves thermally isolating a circuit board from an engine block and from liquids and gases provided in the block. Heat produced by the plate and the heat permeating the isolation are dissipated to the surrounding outside of the board. A supply voltage is generated in an induction coil by permanent magnets rotating on a crankshaft, where the coil is connected with the plate by a cable channel. Information about the speed of the engine is generated for the board. An external display (10) is provided for visualization of data e.g. oil temperature, determined by the board. An independent claim is also included for a circuit arrangement for technical realization of a mileage determining and recording method of an internal combustion engine.