Device for controlling a motor with the use of a crankshaft signals and a camshaft signal

摘要

A device for controlling a motor with a crankshaft and a camshaft, wherein said device comprises:an input unit, which a crank signal as input signal in an input path is able to enter, wherein the crank signal has a level is repeated in a specific direction changes each time when the crankshaft rotates about a first elbow;a multiplication clock generation of a unit comprising a first multiplication clock pulse to be able to produce, which contains a pulling force of clock pulses, whose clock cycle is determined by dividing an input signal with a first multiple number;a counter which, synchronously with the first multiplication clock cycle, the clock pulse generating one of the multiplication unit is generated, a count value of the counter is in accordance with a rotational position of the crankshaft is able to count;a process producing a unit, which has at least one process is able to generate the control of the engine is assigned, in accordance with a crank shafts rotary position, the identified by the count value of the counter is;a monitoring unit, which a level change of the input signal is able to monitor, which is inputted via the input path;an abnormality of determining a unit, which is able to determine whether the crank signal is abnormal, in that the monitored level change of the input signal with a normal level change of the input signal is compared;an input switching unit, which the input signal for input to the input path from the crank signal into a cam signal is able to switch over, when it is determined that the crank signal is abnormal, wherein the cam signal has a level is repeated in a specific direction changes each time when the camshaft rotates about a second angled part; anda process a signal generating unit, which a crank input process signal is able to generate a if by the abnormality determination unit is determined that the crank signal is abnormal, wherein the crank input process signal has a level is repeated in a certain changes direction, wherein each level change of then="82" Crank input process signal with a corresponding change of level of the crank signal is synchronized, whereinthe monitoring unit, a level variation of the crank input process signal is able to monitor when, as a result of the abnormality determination unit a is determined that the crank signal is abnormal.