RU13479U1 - WIPER ENGINE CONTROL DEVICE - Google Patents

Abstract

DEVICE FOR CONTROL OF THE WIPER ENGINE

Ioleznaya model relates to transport equipment, namely, to the electrical equipment of transport vehicles of the Guards, and can be used in engine control schemes for glass-walled cars.

The technical result achieved from the use of the no-use model is to improve consumer properties and expand the scope, due to a change in the device design.

A device for controlling a wiper motor contains a unit for forming time intervals 1. Connected by a first terminal through a power filter 2 to a positive terminal 3 to a device power terminal 2 to a negative terminal 4 of a device power supply, and a third terminal through a first resistor 5 to a first neutralizing terminal 6 devices, the fourth output - to one output of the second massacre of Mount 7, an electromagnetic relay 8 with a switching contact group and a winding, one output connected to the fifth) to the output of the unit for forming time intervals and L with a different terminal - to the positive terminal 3 of the device’s thread, the movable contact of the switching contact group of the electromagnetic relay 8 is connected to the output terminal 9 of the device, the nerve fixed terminal of the switching contact group of the electromagnetic relay 8 is connected to the positive terminal 3 of the device’s power supply, the second fixed contact is switched by the contact grounded electromagnetic relay 8 is connected to the auxiliary) terminal 10 of the device, differentiation unit 11 connected by the input to the first input) terminal 6 of the device, m - to the other terminal of the second resistor 7, matching node 12 connected to the second input terminal of the control) terminal device 13, output terminal - to the other terminal of the second resistor.

abstract

Description

DEVICE FOR CONTROL OF THE WIPER ENGINE

The utility model relates to transport equipment, namely, to electrical equipment of vehicles, and can be used in automobile wiper motor control circuits.

Known devices for controlling a wiper motor, comprising a unit for forming time intervals, a power control key 11.2.

The closest technical solution selected as nrototin is a wiper motor etching device 2 containing a time interval forming unit connected by a nerve terminal through a power filter to a device positive terminal, a second terminal to a device negative terminal, and a third terminal through a first resistor to the first terminal) T1 I align the output of the device, the fourth output to one output of the second resistor, an electrical relay with a switching contact group and a winding, one output the house is connected to the fifth terminal of the time interval forming unit, the other terminal is connected to the positive terminal of the device power supply, the movable contact of the switching contact electromagnet relay is connected to the B1 1-way terminal of the device, the first fixed

MPKV608 1/08

the contact of the switching contact group of the electromagnetic relay is connected to the positive terminal of the device power supply, the second fixed contact of the switching contact group of the electromagnetic relay is connected to the auxiliary terminal of the device, the differentiation unit, connected by the input to the output terminal of the device, the output to) the output of the second resistor, matching unit, connected input to the second control terminal of the device, output to the other terminal of the second pewcTopa.

A known device for controlling a wiper motor has a disadvantage consisting in the following

When operating cars in difficult meteorological conditions, the frequency of non-switching of the glass screen and 1 of one mode to another increases sharply. This limits to 2 ... 3 s the preparation time} of the control device circuit to perform the pre-function after switching off the intermittent operation mode.

The fulfillment of this requirement in a known device is difficult, since for its functioning in an intermittent mode without failures, the following relationship is required:

where tp is the discharge time of the capacitor of the differentiation unit;

tn is the pause time (the time the brushes stay in the initial position).

From the above expression it follows that a reliable re-inclusion of the pre-cleaning mode with a pause time, for example. 5s I can hear no faster than 15 ... 25s after switching off the intermittent operation of the wiper. This circumstance significantly narrows the field of use of the known device and reduces its competitiveness.

The inventive utility model (directed to improving consumer properties and expanding the scope of application of the Wiper Motor Control Devices.

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This technical re-1 result is achieved by the fact that in the wiper motor control device containing a time interval forming unit connected by a null terminal through a thread filter with a null terminal of the device’s thread, a second terminal with a negative terminal of the device’s thread, and a third terminal through a nerve resistor with the neutral output terminal of the device, the fourth output - with the output of the second resistor, an electromagnetic relay with a fixed contact loop and a winding, one output not connected to the output terminal Formation of time intervals, another conclusion - to the null output of the device thread, the movable contact of the non-switching contact soil of the electro-magnetic relay is connected to the inlet output of the device, the nervous non-fixed contact of the non-switching contact soil of the electromagnetic relay is connected to the non-output contact of the device thread, the second fixed contact switching contact to the auxiliary terminal of the device, the coordination node, but connected to the second input) devices, with an output - to another terminal of the second resistor, a differentiation unit, connected by an output to the connection point b} at the input of the matching node and another terminal of the second resistor, an input) of the differentiation evil is connected to the first regulating terminal of the device.

Figure 1 presents a diagram of a device for controlling a wiper motor. The device includes the following elements. The node for the formation of time intervals, which is connected by the first output through the power supply filter 2 to the null output 3 of the device’s thread, the output to the negative terminal 4 of the device’s thread, the third output through the nerve resistor 5, to the nervous output terminal 6 of the device, and the fourth output to one input of the second resistor 7, an electromagnetic relay 8 with a switching contact group and a winding, one terminal connected to the fifth terminal of the time interval forming unit I, and the other terminal to the power supply terminal 3 of the device, movable to ontact switching contact group electromagnetic

relay 8 is connected to the output terminal 9 of the device, the first movable contact of the switching contact group of the electromagnetic relay 8 is connected to the positive terminal 3 of the device power supply, the second fixed contact of the switching contact group 3jieFTpoMarHHTHoro relay 8 is connected to the auxiliary terminal K) of the device. The differentiation unit And, connected by an input to the first control terminal 6 of the device, by an output - to the other terminal of the second resistor 7. The matching node 12, connected by the input terminal to the second control terminal 13 of the device, by the output terminal - to another terminal of the second resistor 7.

The device operates as follows.

In the initial state; when the first (3S control terminal 6 and the second control terminal 13 are disconnected from the plus of the on-board network), a high voltage level is generated at the fifth output of the time interval forming unit 1. Since the winding of the electromagnetic relay 8 is de-energized, the voltage at the output terminal 9 of the device extinguishes and the wiper motor is off.

In intermittent operation, the first) control terminal b of the device is connected to the positive terminal 3 of the power supply of the device. In this case, the voltage applied through the first resistor 5 to the third output of the unit for forming time intervals 1, leads the latter to the mode of generating, at its fifth output, perrudic impulses with a duration of generating a low voltage level, for example, 1 s. When the first voltage pulse is formed, the electromagnetic relay 8 is triggered and, through the closed movable and the first stationary copy switches of the switching contact group, it turns on the wiper motors. Simultaneously with supplying voltage to the third output of the unit for forming time intervals, a short voltage pulse is applied to its fourth output 1 through the resistor 7, which is generated by the differentiation unit 11. This pulse starts the unit 1 forming the time intervals for generation at its fifth low level output

voltage for, for example, 5 ,,. 6s, as a result, the engine rotates continuously, and the three without stops in the initial position, perform double sweeps on the glass for the above time.

After a predetermined time for generating a low voltage level, the node for the formation of time intervals I automatically goes into the stationary mode of generating periodic pulses.

Thus, after switching on the intermittent operation mode, the wiper blades first perform three to four double sweeps without stopping in the initial position (pre-cleaning mode), and then automatically enter the intermittent operation mode with a periodic stop in the initial position, for example, to Z ... 5s

When the intermittent mode is switched off, the readiness of the circuit for the guiding execution of the pre-cleaning function is determined by the discharge time of the condenser 1 of the differentiation unit 11.

In the proposed technical solution for small values of the resistances of the resistors of the differentiation unit 11, the indicated availability time can be, for example. 0.5 ...., 0s.

In the washer operation mode, the second control terminal 13 is connected to the positive power terminal 3. The supply voltage is supplied to the washer engine and, through the matching unit 12 and through the second resistor 7, is applied to the fourth output of the unit for forming time intervals I. At the same time, a low voltage level is generated at the fifth output of the unit for forming time intervals 1. The electromagnetic relay 8 is activated and through the closed movable and first fixed contacts of the contact switches, the wiper motor is switched on in continuous operation. As a result, the washer engine and the wiper motor are switched on almost simultaneously. When the second control terminal 13 is disconnected from the positive power terminal 3, the time interval forming unit 1 turns off the electromagnetic relay 8 with a time delay, for example, in 5 ... 6 s. As a result, the windshield washer motor stops cpaiy after the specified shutdown, and the windshield wiper motor still continues to run for a set time, after which it also stops.

Thus, the wiper blades begin to move along the glass at the same time as the washer begins to spray. Then, when the spraying of the washer fluid is stopped due to the shutdown of the washer engine. the wiper blades perform another 34 continuous double sweeps (glass aftertreatment mode), after which they remain in the initial position.

If the second control 01lvod 13 is connected to the power supply terminal 3 when the first control terminal 6 is connected to the last one, then in this windshield wiper the automatic switch switches from intermittent to continuous operation. After disconnecting the second traction-output terminal 1.3 from the positive output 3 of the power supply , wiper blades continue to make 3-4 continuous double sweeps, and then automatically go into intermittent glass cleaning mode.

Thus, the connection of the input of the differential node {: 1) reprocessing to the first control of the output of the device favorably distinguishes the claimed device from the prototype, since it allows% to improve its consumer properties and expand the scope.

Laboratory and operational tests carried out at OAO Lvtoelektronika and OAO GAZ showed that the device was fully functional when used both on trucks and cars.

Sources of information:

1.MS 33197. Motorola analog 1C device data, 1996, p. Z, fig.l

2. Certificate RU No. 9605, IPC 6 V 60 S I 08, Eyul. No. 4, 1999

Claims (1)

A wiper motor control device comprising a time interval generating unit connected by a first output through a power filter with a positive power output of the device, a second output with a negative power output, a third output through a first resistor with a first control output of the device, a fourth output with a output of a second resistor , an electromagnetic relay with a switching contact group and a winding, one output connected to the fifth output of the unit for forming time intervals, the other to positive the power supply terminal of the device, the movable contact of the switching contact group of the electromagnetic relay is connected to the output terminal of the device, the first fixed contact of the switching contact group of the electromagnetic relay is connected to the positive output of the device power, the second stationary contact of the switching contact group of the electromagnetic relay is connected to the auxiliary terminal of the device, matching unit connected input to the second control terminal of the device, output to another terminal of the second resistor, uze l differentiation, connected by the output to the connection point of the output of the matching node and the other output of the second resistor, characterized in that the input of the differentiation node is connected to the first control terminal of the device.