DD211602A1 - ELECTRONIC SPEED REGULATION FOR ELECTRIC CIRCUITS - Google Patents

Abstract

The electronic speed control can be applied to diesel and ottomotorenen electric power units and can be used for the mechanical speed controller. The object of the invention is to achieve a high speed constant in the entire load range, regardless of the Umwelelteifluessen and the wear condition of the engine, wherein a frequency of the generated voltage is to be kept at the limit of the minus tolerance range. This is achieved by regulating the voltage generated by the generator (2) via the voltage distributor (3), trigger (4), counter (5) and decoder (6) in order to regulate the speed of an internal combustion engine in such a way that at the output of the decoder (6) pulses are present which are proportional to the duration of the frequency generated and are used to control the conditional flip-flops (9; 10) such that the continuous comparison pulse sent by the monoflop (8) in the Exclusive-Or (7) with the pulse the currently generated frequency of the generator (2) is compared. The resulting signals set one of the flip-flops (9 or 10), which controls the fuel metering device via a driver (11), adjusting geared motor (12) and control arm.

Description

a) Title of the invention

Electronic speed control for electric power units

b) Field of application of the invention;

The electronic speed control can be used in diesel and ottomotorenen driven electric units and can be used for the mechanical speed controller.

c) r builds character istics of the known technical solutions

The most common solution is the mechanical governor, which operates on the centrifugal force-peder-pressure control principle. * This regulator has the following disadvantages:

3s is an elaborate regulation according to the operating condition of the engines and their Yerschleißzustand necessary.

The adaptation of the controller and motor characteristics is usually not achievable and thus no speed constancy over the entire load range possible *

The viscosity fluctuations of the lubricating oil as a function of temperature fluctuations affect the accuracy of the mechanical speed controller,

A high mechanical effort in the manufacture of the controller is necessary and the control loop is closed only within the engine.

There are also electronic Regelung.bekannt that work on the principle of constant frequency via orifice plates or magnetic pulse, but which are complex to manufacture and partly have the disadvantages listed in the mechanical speed controller ».

d) Object of the invention

The aim of the invention is to achieve a high speed stability with the least expenditure of material and to obtain a frequency of the generated voltage at the limit of the minus tolerance range, irrespective of environmental influences and the wear condition of the engine, in order to obtain the lowest possible quantity of fuel to consume, which is necessary for the respective generated electrical power »

e) presentation; the cause of the invention

The object of the invention is to provide an electronic speed control, which includes the entire electric power unit *

According to the invention γ / ird derived from the generated AC voltage of the generator, a pulse which is proportional to the generated frequency »

This is compared with a comparison pulse of duration, which corresponds to the desired nominal frequency. By electronic evaluation - generated frequency greater than desired frequency or generated frequency smaller than desired frequency - a control signal is derived, which moves the Yergaserdrosselklappe or, the injection pump dosage until a match of generated frequency and desired frequency is reached «

f) embodiment

One embodiment is in FIG. 5 ¹ Ig. 1 shown. The internal combustion engine 1 operates the self-voltage-regulating generator 2 and is mechanically coupled to it · From the voltage generated via the voltage divider 3, the input voltage for the trigger 4 is removed »This provides pulses to a counter 5. Its outputs are located on a decoder 6, At the decoder are temporally successive pulses that are proportional to the duration of the generated frequency _o you γ / ground used to control the conditional flip-flops (9, 10) in initial position and to control the monoflop 8 for the comparison pulse of the desired frequency » By monoflop 8, the reference pulse is generated in synchronism with the pulse generated by the generator 2 »

The pulses of the generated frequency and the desired frequency are compared in the Exclusive-Or 7 and set with the resulting signals, either the conditional flip-flop 10 or 9. A servo motor 12, which is clocked in accordance with the mass inertia of the moving parts of the system, is set in the right or left direction by means of a driver 11. The servo motor is connected to the fuel distributor via a control arm and adopts the metering until equality is achieved between the generated frequency and the desired frequency is present, and if the deviations occur, the control process described above occurs immediately, until the generated frequency matches the desired frequency. "

Claims (1)

Experience statement Electronic speed control for electric power units, characterized in that for the speed regulation of an internal combustion engine (1) the voltage generated by the generator (2) via voltage distributor (3) _s trigger (4), counter (5) and decoder (6) is processed so that Output of the decoder (β) pulses are present, which are proportional to the duration of the generated frequency and for controlling the conditional flip-flops (9; 10) are used so that the monoflop (8) transmitted duration comparison pulse in the exclusive-or (7) is compared with the pulse of the currently generated frequency of the generator (2), wherein the resulting signals one of the flip-flops (9 or 10) sets, which controls the fuel metering via a driver (11), adjusting gear motor (12) and control arm. 1 sheet of drawings