RU15321U1 - PROGRAMMABLE WIPER BREAKER - Google Patents

Description

| Pamie, m The specified device has the following disadvantages: -complete electrical circuitry -the presence of a large number of radio elements. The closest adopted for the prototype is "Automated self-learning controller (US patent No. 5,412,296 from 05/02/95, MF 60 S 1/08), containing a voltage stabilizer, input voltage level converters.

microcontroller, output power amplifier and electromechanical relay with contact group.

The specified wiper stopper has the following disadvantages:

-the presence of a large number of radioelements;

the use of an expensive chip stabilizer voltage;

-use of expensive onton chips;

- The output power amplifier is made in two stages, consists of two resistors and two transistors.

The technical result of the noisy model is to simplify the electrical circuit, reduce the size and reduce the cost of the product.

The technical result is achieved by the fact that in the known wiper chopper programmable, containing a voltage stabilizer, input voltage transducers, a microcontroller, an output power amplifier. And an electromechanical relay with a contact group, input voltage transducers are made in the form of parametric voltage stabilizers, and the output power amplifier is made about the bottom cascading.

The essence of the utility model lies in the fact that in the wiper chopper programmable, the input strainers of the voltage level are made in the form of parametric stabilizers

voltage, and the output power amplifier is single-stage, which allowed to simplify the electrical circuit, reduce the size and cost of the product.

The attached drawing shows a block diagram of the proposed breaker, which shows the following notation:

1 - stabilizer of stress;

2,3,4 - input voltage level converters;

5- microcontroller;

6-output power amplifier;

7- electromechanical relay with contact soil.

The wiper chopper programmable in this design has the conclusions: “15,“ 31, “I,“ 86, “31b,“ S.

Conclusion "15 - input connect power supply voltage

Conclusion "31 - contact input" contact; common;

Conclusion "I - input connection to the wiper mode selection switch;

Conclusion "86 - input connection to the electric penalties friction windshield washer;

Conclusion "31b - input connection to the limit switch wiper motor reducer;

The programmable wiper chopper (hereinafter referred to as the chopper) contains a voltage stabilizer 1, which is connected to the output "15 of the chopper and the input voltage of the microcontroller 5, input converters 2,3,4 voltage levels made in the form of parametric voltage stabilizers are connected respectively to the terminals of the interrupter" I "86" 31b and the inputs of the microcontroller 5. The output of the microcontroller 5 is connected to the input of the output power amplifier 6, made one cascade. The output of the output power amplifier 6 is connected to the output of the coil of the electromechanical relay 7 having a contact group, the other output of the coil of the electromechanical relay 7 is connected to the output of the chopper "15. The fixed contacts of the electromechanical relay 7 are connected respectively to the terminals of the chopper "15 and" 31b, and the movable contact is connected to the terminal of the chopper "S. Moreover, the fixed contact connected to the terminal "31b and the movable contact of the electromechanical relay are normally closed.

The signal at terminal “I serves to activate the intermittent operation of the wiper and to set the pause time of the intermittent operation of the wiper. The signal at the output of "86 is used to determine the time of inclusion of the washer. The signal on the output "31b is used to determine the initial position of the wiper blades.

Parametric voltage stabilizers 2,3,4 convert the voltage value of the on-board vehicle network, including the input signals of the chopper ("I," 86, "31b) into the voltage level necessary for the operation of the microcontroller, for example PIC12C508A. The microcontroller 5 controls the operation of the output power amplifier and the chopper as a whole, based on the current values of the signals from the parametric stabilizers (input signals to the chopper). The output power amplifier 6 is used to control the coil of the electromechanical relay 7. The electromechanical relay 7 with the contact group is used to switch the output "S either with the output" 31b or with the output "15 depending on the signal from the microcontroller 5.

The proposed wiper chopper programmable works as follows.

When applying the supply voltage of the vehicle’s on-board network to terminal “I, the voltage is supplied through terminal“ S to the wiper motor (not shown) in the wiper during the cycle of the wiper blades (not shown). The pause between the cycles of movement of the wiper blades is provided by removing this voltage from the terminal “S at the moment the wiper blades return to their initial position. At this moment, the voltage at terminal “31b changes from the supply voltage to O V. The pause time is set in two consecutive short-term

by removing the supply voltage from the output "I. When the supply voltage is applied to terminal “86, the voltage is supplied through terminal“ S to the wiper motor for the entire time the power supply is applied to terminal “86 and will be removed after three cycles of movement of the wiper blades after removing the voltage from terminal“ 86.

Claims (1)

A programmable wiper chopper containing a voltage stabilizer, input voltage level converters, a microcontroller, an output power amplifier and an electromechanical relay with a contact group, characterized in that the said voltage level input converters are made in the form of parametric voltage stabilizers, and the output power amplifier is single-stage.