DEVICE TO AUTOMATICALLY CONTROL SPEED OF DIESEL LOCOMOTIVE WITH ELECTRIC TRANSMISSION Russian patent published in 2013 - IPC B60L15/20 B60L11/02 

FIELD: transport.

SUBSTANCE: invention relates to railway transport. Proposed device comprises speed parameters estimation unit, speed setting unit and speed transducer, traction generator current control unit, diesel regulator control unit, traction generator current and voltage transducers, gate element, integrator, comparators, amplifiers, functional converters, multipliers, adder, clock oscillator, logical devices, reversing counters, and units to control speed smooth and stepped control. Comparator output is connected to integrator input via gate element. Integrator output is connected to adder first input. Adder second input is connected to output of first reversing counter. Adder third input is connected to first amplifier output. Complementing inputs of first reversing counter are connected to appropriate outputs of first logical device. Input of first functional converter is connected to traction generator current transducer output, first amplifier input, third comparator first input and second multiplier first input. Second reversing counter output makes output of second unit of to control speed smooth and stepped control and second functional converter input. Fifth comparator output is connected to second amplifier input. Second amplifier output is connected with exciter input to make output of traction generator current control output.

EFFECT: better dynamic and static control over speed.

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