SU1506163A1 - Misfiring monitoring device responsive to spark generation - Google Patents

Abstract

The invention relates to devices for monitoring the continuity of the sparking of contact, contact-transistor (thyristor), and contactless ignition systems and can be used to control and adjust ignition systems at enterprise manufacturers and at the input control of enterprise consumers. The aim of the invention is to expand the functionality of the device and increase the reliability of monitoring the operation of the ignition system. The goal is achieved by the fact that RS-triggers 12,13, D-trigger 14, elements AND 15,16,17, elements OR 18,19, pulse shaper 20, single-pulse sensor 1 position of the distributor shaft are entered into the device. The presence of a single-pulse sensor 1 allows all elements of the ignition system to be included in the control circuit, and the execution of the multi-input readout channel allows controlling the distributor 27 of the distributor. The ability to automate device control on Start and Stop tires allows you to control the ignition system as a whole and elementwise, in particular, at different shaft speeds and different accelerations. 2 Il.

Description

The invention is designed to control the continuity of spark contact, contact-transistor (thyristor), and contact-free ignition systems and can be used to control and adjust ignition systems at manufacturing plants and at the input control of consumer enterprises.

The aim of the invention is to expand the field of application of the device due to the possibility to control any element and the ignition system as a whole and to increase the reliability of control of the operation of the ignition system.

Figure 1 shows the diagram of the device; Fig. 2 shows time diagrams of voltages at the outputs of the elements.

The device contains a sensor 1 of the position of the distributor shaft connected to the first galvanic isolation element 2, the output of which through the first shaper 3 pulses is connected to the first input of the first element 4, to the second input of which is connected the right of the first RS flip-flop 5, to S- the start bus is connected to the input, the output of the first element I is connected to the S input of the second RS flip-flop 6, the direct output of which is connected to the first input of the second element I 7, the third element And the first input of which through the second driver 9 connects the pulses inen with the output of the second element 10 galvanic isolation, counter 11, the third and fourth RS-flip-flops 12 and 13, D-flip-flop 14, the fourth, fifth and sixth elements AND 15-17, the first 18 and second 19 elements OR, the third driver 20 pulses, the decoder 21, the readout device 22 input bus Inputs.

The controlled ignition system 23 comprises a series-connected distributor 24, a switch 25, an ignition coil 26 and, moreover, a distributor 27 of the distributor and equivalents 28 -28 ;, loads, the output of the third element And 8 is connected to the subtractive input of the counter 11, the outputs of which through the decoder 21 are connected to from

five

0

five

0 0 5 0

the input of which is connected to the primary input of the fifth element AND 16 and the output of the first driver 3 pulses, and the second input - with the direct output of the fourth RS-flip-flop 13, the S-input of which is connected to the Start bus and the R-input of the D-flip-flop 14, С whose input is connected to the output of the fourth element I 15, and the D input is connected to the inverse output and the second input of the fifth element AND 16, the output of which is connected to the second input of the second element And 7, the output of which is connected to the preset input of the counter 11, direct output of the D-flip-flop 14 is connected to the first input of the sixth el And 17 and the second input of the first element OR 18, the first input of which is connected to the first output of the second RS-flip-flop 6, the R-input of which is connected to the R-input of the first RS-flip-flop 5 and to the output of the sixth And 17, the second input of which is connected with the first input of the third IZ element, the second input of which is connected to the output of the first element OR 18 and through the third pulse shaper to the R input of the fourth RS trigger 13, the inverse output of which is. It is connected to the gate input of the decoder 21, while the input of the second galvanic isolation element 10 is connected to the output of the second element OR 19, the n inputs of which are connected to the input bus Inputs, while the B-input of the counter 11 is connected to the forward output of the first RS flip-flop five.

The device works as follows.

After turning on the device, its memory elements can be in any state. The distributor shaft is driven into rotation (for example, by a direct current motor), with the output of sensor 1 of the position of the distributor shaft appearing signals corresponding to one pulse per revolution, and at the outputs of system 23 pulses corresponding to sparks appear on the cylinders. Consider ra

the counting device 22, R-input third, the bot device when monitoring the system

its RS flip-flop 12 is connected to the R-input of the counter 11 and the Start bus, and the direct output is connected to the third input of the fourth element I 15, the first

Ignition for 4-shsh1Indrovogo engine. In this case, for one pulse of position 1 sensor 1, system 23 should perform four pulses.

Ignition for 4-shsh1Indrovogo engine. In this case, the system 23 must perform four pulses for one pulse of the position sensor 1.

five

Pre-installation of the memory elements of the device is not required, since the installation takes place automatically after the control signal arrives at the Start bus (either from a computer or from a control button). The start of operation of the device is determined by the moment of arrival of the first pulse from position sensor 1 after the control signal arrives at the Start bus (Fig. 2, tg).

The control signal sets the RS-flip-flop 5 to the unit, which opens the element AND 4 for the passage of pulses from the position sensor 1 and sets the necessary combination to 0., - the inputs of the counter 11. The signal

M

the control also sets: to the zero state the RS flip-flop 12, which locks the element 15, to the single state RS flip-flop 13, to the zero state the D-flip-flop 14; the logical unit of the inverse output of the D-flip-flop 14 opens the element AND 16 for passing pulses from the position sensor 1 and sets the counter 11. to zero. The first pulse from the position sensor, having passed the galvanic isolation element 2 and having formed on the shaper 3, passes through the open element And 4 and sets the RS-flip-flop 6 to the unit (Fig. 2, t.), Thereby opening the element And 7 for his own passage to the C input of the preset counter 11.

Thus, each pulse from the position sensor 1 records in the code combination counter 11.

a nation that is typed on the D inputs (in this case, 4).

The second channel of the device operates to read the pulses that were recorded in the counter. In this case, they are removed from the load equivalents and through the element OR 19, the element 10 of galvanic development, the shaper 9 pulses and the open element AND 8 arrive at the readout input of the counter 11. The element AND 8 is opened by a unit, which through the element OR 18 comes from the output of the RS flip-flop 6. The monitoring of the system or its individual elements continues until the control signal is received on the bus Stop. When a control signal arrives at the bus stop (FIG. 2,

g

0 5 o

five

0

5 r

five

1636

ment tj) RS flip-flop 12 switches to unit and, caNfl, iM opens element 15 for passing the pulses of position sensor 1 to C - input of the preset trigger 14. The first pulse of the position sensor, after the Stop command, makes the last entry in counter 11 and sets the D-flip-flop 14 to the unit that releases the element AND 17, and through the element OR 18 holds the element AND 8 in the open state. The zero of the inverse output of the D-flip-flop 14 closes the element AND 16 for the passage of the next pulse of the position sensor (Fig. 2, time t). The first impulse from the imager has 9 pulses, i.e. the impulse that comes from the controlled ignition system, through the open element, And 17 sets the RS-flip-flops 5 and 6 to the zero state (Fig. 2, time t). In this case, the elements AND 4 and 7 are closed, and the pulses of the controlled system are subtracted from the counter 11 (FIG. 2, ty). The second pulse of the position sensor after the Stop command can no longer set the RS flip-flop 6 to one, because the element

And 4, but D-flip-flop 14 switches and a zero appears at its direct output, which through the element OR 18 closes the element AND 8 and no extra read pulses are received at the subtracting input of the counter 11.

The occurrence of zero at the output of D-flip-flop 14 converts the output of the element OR 18 from a logical unit to zero, on this front the pulse shaper 20 generates a short pulse and sets the RS flip-flop 13 to zero and thereby closes the AND 15 element for passing a series of pulses of sensor 1 position on the C-input of the D-flip-flop, simultaneously a unit on the inverse output of the RS-flip-flop 13 gives

permission to work indication.

I

Thus, if we assume that N, are write pulses (by code), and NU are read pulses, if O, the ignition system as a whole or its controlled element is in good condition and is recognized as valid, and if Nj (-Nu / 0, ignition system or its controlled element is faulty and is recognized as a marriage.

Claims (1)

Invention Formula A sparking continuity monitoring device in the blasting system, containing the first galvanic isolation element, the output of which through the first pulse shaper is connected to the first input of the first element AND, to the second input of which the direct output of the first RS trigger is connected, to the S input of which is connected The start bus, the output of the first element I is connected to the S input of the second RS flip-flop, the direct output of which is connected to the first input of the second element I, the R input of the first RS flip-flop is connected to the R input of the second RS flip-flop, the third element t And, the first input of which is connected via the second pulse shaper to the output of the second galvanic isolation element, a counter, a decoder, a reading device, characterized in that, in order to expand the field of application and increase the reliability of control of the ignition system, additionally entered the third and fourth RS-triggers, D-trigger, the fourth, fifth and sixth elements AND, the first and second elements OR, the third pulse generator, single-pulse shaft position sensor, bus Inputs, and the output of the third element AND It is connected to the subtracting input of the counter, the bit outputs of which are connected to the readout device through the decoder Q device, and the R input of the third RS flip-flop is connected ten 15 15061638 The R input of the counter and the Start bus, the direct output is connected to the third input of the fourth element I, the first input of which is connected to the first input of the fifth element I and the output of the first pulse generator, second to the direct output of the fourth RS flip-flop, S- the input of which is connected to the Start bus and the R-input of the D-flip-flop, the C-input of which is connected to the output of the fourth element I, and the D-input is connected to the inverse output of the D-trigger and the second input of the fifth - element I, the output of which is connected to the second the input of the second element And, the output of which is connected to the input In this case, the direct output of the D-flip-flop is connected to the first input of the sixth And element and the first input of the first SHS element, the second input of which is connected to the direct output of the second RS-flip-flop, the R-input of which is connected to the output of the sixth And element, the second the input of which is connected to the first input of the third element I, the second input of which is connected to the output of the first element OR, and through the third pulse shaper to the fourth RS trigger, the inverse output of which is connected to the gate input of the decoder, while the input of the second ementa galvanic isolator connected to the output element WPR Hilti, n inputs of which are connected to the bus inputs, and the Dn-counter input coupled to a direct output of the first RS-flip-flop, 20 25 thirty 35