COUNTER OF OPERATION TIME OF RUNNING SYSTEM Russian patent published in 1998 - IPC

FIELD: mechanical engineering, tractor making, in particular, caterpillar tractors. SUBSTANCE: electronic counter of running gear operations has clock which has nonvolatile counters of seconds, minutes and hours, and indicator. Input of seconds counter is connected to output of AND gate. Inputs of AND gate receive signals from outputs of rectangular pulse generator and flip-flop which controls clock operations. Detector is mounted on driving wheel and is connected to clock control flip-flop and delay counter through generator of rectangular pulses. When driving wheel starts rotation, signal is sent from detector to input of flip-flop which controls clock operations. Same signal resets delay counter. Signal from output of clock operation flip-flop permits signals from generator of rectangular pulses to counter of seconds. Continuous rotation of driving wheel results in time counting. When driving wheel stops, signals are also stopped and counter starts delay counting. When given threshold is reached, counter resets flip-flop which controls clock operations and time is not counted. EFFECT: possibility to evaluate running time of system. 1 dwg