REMOTE CONTROL SYSTEM FOR INTERNAL-COMBUSTION ENGINES Russian patent published in 2005 - IPC

FIELD: mechanical engineering; internal combustion engines control systems.

SUBSTANCE: proposed remote control system for internal combustion engine contains setter with logic control unit connected by two channels with converter connected to servo mechanism of speed control unit connected with logic unit through position pickup. Pair of series-connected logic AND and OR gates coupled with position pickup is placed in each channel connecting logic unit and converter. Setter is also coupled through logic unit with unit of converters connected to servo mechanism to control change-over of reverse-reduction gear connected with logic unit through position indicator. System is furnished additionally with engine minimum stable speed indicator and change-over device built into control channels between logic un it, position pickup, position indicator and indicator. Change-over device is made in form of automatic switch with control link containing three control channels connected to setter control elements: first channel consists of series-connected OR gate, AND gate and storage element with reversing command elements connected to inputs to inputs of OR gate, position pickup is connected to input of AND gate and to inverting reset input of storage element, and output of storage element is connected to converter control element to increase speed of rotation; second channel consists of AND gate, storage element and additional AND gate, with speed decreasing command element and minimum stable speed indicator being connected to direct inputs of first AND gate, and reversing stop position pickup and output of storage element being connected to inverting inputs of first AND gate, input of storage element recorder is connected to output of speed decrease control channel, inverting reset input of storage element is connected to speed decrease command element, additional AND is connected by inputs to speed decrease command element, to gear shifted-in position signal channel and to minimum stable speed indicator, and output of additional AND gate is connected to speed increase channel; third channel consists of series-connected AND gate and storage element, with position pickup and gear shifted-in position signal channel being connected to inputs of AND gate, output of AND gate is connected to converter to increase sped, and output of storage element is connected to logic control unit, to inverting blocking input of AND element f engine speed increasing channel.

EFFECT: improved reliability and quick response of control system, prevention of operator's mistakes.

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