JPS6198657A - Car washer system - Google Patents

Abstract

PURPOSE:To reduce the mixing power by providing first and second storage tanks for storing the first and second component materials of washer liquid then mixing said materials and feeding to ejection unit. CONSTITUTION:A controller 20 will set the mixing ratio of washer liquid with correspondence to the outer air temperature on the basis of the output signals from an outer air temperature detector 11, mixture liquid concentration gauge 37 and a mixing tank liquid level gauge 38. A water suction pump 31, a detergent pump 32 and an agitator 33 are driven to achieve said ratio. Said pump 31 will pump the first component material or water from first storage tank 34 to deliver into mixing tank 36. Similarly, the detergent pump 32 will pump the second component material or detergent from second storage tank 35 into the mixing tank 36. The water and the detergent in the mixing tank 36 are agitated through the agitator 33 then ejected by an ejection pump 41 through an ejection nozzle 43.

Description

Detailed Description of the Invention [Industry - Second Field of Application] The present invention comprises a washer fluid storage tank of a washer device consisting of a plurality of storage tanks, thereby making it possible to vary the mixing ratio of the washer fluid, This invention relates to an automobile washer device that allows easy replenishment of liquid.

[Prior Art] Conventionally, a storage tank for storing washer fluid in an automobile washer device is composed of only one storage tank. Therefore, the washer fluid is mixed, for example, in consideration of the composition ratio of the detergent solution before being stored in the storage tank (8). The above-mentioned work is especially carried out on the opposite side of the mountain at dawn.

Moreover, the composition ratio of the components of the washer fluid stored in the storage tank cannot be changed after it is stored. However, originally
The washer device does not operate under the weather conditions of the outside world. Because it is operated according to the situation,
For example, the conditions such as rainfall, snowfall, level of dirt, temperature, etc.
By adjusting the constituent ratios of the components of the washer liquid in accordance with this, the function of the Δlash device is further enhanced.

However, you can easily change the component ratio of the washer, or use external washers! There is no device that can automatically change the amount according to 1.

The first invention solves and improves the problem.
The purpose of the second invention is to configure the storage tank of the washer device from a plurality of storage tanks, and to reduce the labor required for collecting the four washer fluids. Temperature, window crow σ eyes l
The purpose of this invention is to improve the washer effect and save the stock solution by changing the mixing ratio of the washer fluid in accordance with the external conditions f1 such as the washer fluid.

[Means for Solving the Problems] An automobile washer device comprising a storage tank for storing washer fluid and an injection device for injecting the washer fluid stored in the storage tank onto a cleaning surface, wherein the storage tank comprises at least a first storage tank for storing a first component material constituting the washer fluid and a second storage tank for storing a second component material, and the first component material and the second component material are mixed. The washer device for an automobile is characterized in that a mixing device is provided for supplying the mixed liquid to the injection device.

The spraying device is a device for spraying the washer fluid onto a cleaning surface.

For example, it includes an injection pump that pumps up the washer fluid from a storage tank and generates a predetermined fluid pressure, a flow control valve that controls the flow rate of the washer fluid, a spray nozzle that sprays the washer fluid, and the like.

The first component material and the second component material are component materials that have the function of the washer fluid either alone or by combining two or more kinds of component materials.

The first component material and the second component material may be in a solid, gas, or liquid state.

For example, the washer fluid may be composed of water as the first component and powdered detergent as the second component.

The shape and material of the storage tank are not particularly limited as long as it has a storage function, but considering the operability of managing the component materials, it is desirable to have a [cassette 1 ~ type] shape that is easy to attach, detach, and attach. .

The mixing device is a device for mixing at least the first component material and the second component material.

The mixing device includes, for example, a lever, a stop valve, piping (4,
It is an assembly consisting of a mixing tank, a motor, etc.

The mixing device may perform the mixing by manual operation or by automatic operation. In short, the mixing device may be any device as long as it can mix into a uniform A rasher liquid.

The second invention includes at least a first storage tank for storing a first component material ii*-n- constituting a washer solution, a second storage tank for storing a second component material, and at least the first component material. a mixing device that mixes the component material and the second component material; a mixing ratio control device that operates the mixing device and adjusts the mixing ratio of the component material in the washer fluid; .

The mixing ratio control device is generally a device that drives the mixing device using a control signal.

The control signal is preferably an electric signal from the viewpoint of responsiveness, but may also be a fluid signal based on the flow of fluid such as pneumatic pressure or oil pressure. The mixing ratio control device may be a device that changes the mixing ratio by manual operation such as a lever operation, or may be a device that inputs a signal from an external detector and automatically determines the mixing ratio of the component materials.

= 7 − For example, an outside temperature detector that detects the outside temperature,
[Inspect the transmission level of light of 80.1 through the glass.]
? It is also possible to have a light transmittance detector and change the mixing ratio according to its output signal. By turning the outside temperature sensor to the right, the freezing point of the washer fluid can be adjusted, and by turning the light transmittance detector to the right, the washer solution can be cleaned according to the degree of dirt on the windshield. Ability can be adjusted.

[Operation 1] The first storage tank stores the first component material, which is a component of the ΔLasha liquid, and the second storage tank stores the second component material.

The mixing device mixes the first component material in the first storage tank and the second component material in the first storage tank.
Mixing the second component material in the storage tank. For example, when the outside temperature detector is arranged Lq, the mixture ratio control device adjusts the composition of the liquid component 4 according to the signal input from the outside temperature detector f)s. The ratio is calculated and controlled and output to the mixing device, and the mixing device mixes the first component material and the second component material according to the input control signal.

[Example 1] Hereinafter, the present invention will be explained in detail based on one specific example. FIG. 1 is a block diagram showing the configuration of an automobile washer device according to a specific embodiment of the first invention and the second invention.

This embodiment attempts to adjust the mixing ratio of washer liquid, in which the first component is water and the second component is detergent.

The outside air detector 11 is a detector that detects the temperature outside the vehicle interior and outputs an electrical signal. The outside temperature detector 11 is
An electrical signal in which the resistance value of a resistive element 12 having a temperature gradient changes depending on the rise and fall of the outside temperature is input to an amplifier 13, and the output signal of the amplifier 13 is converted into a digital signal by an AD converter 14 and output. .

The control device 20 includes an input interface 21, a microcomputer 22, and an output interface 23.

The mixing device 30 includes a water suction pump 31 that pumps water, which is the first component material, from a first material storage tank 34 and discharges it into a mixing tank 36, and a water suction pump 31 that pumps water, which is the first component material, into a mixing tank 36, and a second component, which is the detergent liquid, which is the second component material. A detergent liquid pump 32 draws water from a storage tank and discharges it into the mixing tank 36, and an agitator 33 stirs the water and detergent liquid discharged into the mixing tank 36. It is a device consisting of

FIG. 2(a) shows a plan view of the mixing device 30, and FIG. 2(b) shows a side view of the mixing device 30.
An injection device 40, which is connected to a washer fluid discharge pump 41, a foracia fluid amount adjustment valve 42, and a spray nozzle 43, sucks the washer fluid adjusted according to this embodiment, and sprays it onto the windshield. do.

FIG. 3 is a circuit diagram showing the flow of the water and the detergent liquid in the mixing device 30.

In this specific embodiment, the mixing tank 36 has the stirring 41
In order to uniformize the density of the washer solution in the mixing tank 36 by closely controlling the iris of the mixed liquid concentration meter 3.
Place 7. Further, in order to closely control the water suction pump 31 and the detergent liquid pump 32 in the mixing tank 36,
A mixing tank liquid level t138 is provided.

A block diagram of the mixed liquid concentration reducer 37 is not shown in FIG. Due to the minute current flowing in the washer fluid 372, the electrode 37
1. There is a potential difference between the electrodes 373, and the potential difference changes depending on the concentration of the washer fluid. Therefore, at the node 374, an electrical signal corresponding to the above-mentioned resistance is generated, and this electrical signal is input to an amplifier 375 and converted into a digital signal by an AD converter 376.

The characteristics of the voltage ◇ at the node 374 and the concentration of the washer fluid are shown in FIG. According to FIG. 7, if the concentration of the washer fluid is the same, the higher the concentration of the washer fluid, the lower the potential at the node 374.

(Note: More than ten components of the second component material are ethylene glycol.) FIG. 5 is a block diagram illustrating the mixing tank liquid level gauge 38.

As the washer solution level 380 moves up and down, the float 383 connects with the guide column 381.38.2 = 11
- The surface of the Wakite pillar 381, which moves up and down while sliding, is a uniform resistor 38/I, and one end of the resistor 384 is grounded. Flows 1 to 383 are conductors, and the lead wire connected to the flow I]-1-383 is a resistor 385.
is connected to. The amplifier 387 inputs a signal from the connection point H'i of the lead wire 38F5 of the resistor hIt.

Due to the above-mentioned expansion, the electric signal at the node 386 also changes due to the movement of the washer fluid level 380, and the electric signal is processed by the amplifier 387 and digitally converted by the ΔD converter 388. Convert to signal.

The starting switch 60 is a switch for starting the washer device, and is a self-memory push button switch.

Figure 6 shows that the freezing point of the washer fluid is i11 of the washer fluid.
FIG. 111 is a diagram showing temperature-freezing point characteristics that change depending on the temperature.

Next, the operation of this embodiment will be explained with reference to FIG. 8, which shows the processing of the microcoater.

] The pump coater is always ready to run, and step 10
0, when it is determined that the driver has turned on the start switch of the washer device, in step 102 the outside temperature T is read from the outside temperature detector 11, and in step 104, the ideal concentration of washer fluid corresponding to the above T is determined. Read Do from memory.

Step 106 involves preparing a washer solution, which will be described later, as shown in FIG.

Once the washer fluid is blended to a predetermined concentration, step 1
In order to check the amount of the washer fluid in step 08, read the liquid level height from the mixing tank liquid level 1138, and proceed to step 11.
0 and the above-mentioned 1" as the judgment condition, the washer fluid was
If it is determined that it is okay to release, proceed to the next step.

If it is determined in step 112 that the start switch 60 is in the on state, the process proceeds to the next step and a signal for an injection command to the washer fluid discharge pump 41 is output.

From step 108 to step 114 until it is determined in step 112 that the activation switch 60 is turned off.
Repeat the loop operation.

Next, using the flowchart shown in FIG. 9, which does not show the computer processing, the washer fluid is prepared and the filter culm is explained.

In step 200, the concentration of the washer liquid is read from the mixed liquid i11 degree meter 3γ.

Step 202 determines whether the absolute value of the difference between the m degrees and the ideal concentration Do corresponding to the outside temperature is within a predetermined error range.

When it is determined that the absolute value is smaller than the error range, the process returns to the main program.

When it is determined that the absolute value is larger than the above, the process proceeds to the next step 204, and the liquid level height 1 is determined by the mixing tank liquid level gauge 38.
-1, and in the next step 204, the liquid level height 1 is read.
", calculate the remaining amount of washer fluid in the mixing tank 36, and change the shape of the mixing tank 36 stored in advance.
In order to obtain the predetermined concentration Do for the maximum amount of washer liquid stored in No. 6, the amount of water and detergent liquid to be added is 81.
Calculate.

Thereafter, the process proceeds to step 208, where a command signal for driving the water suction pump 31 and the detergent liquid pump 32 until a predetermined suction amount is reached, and a command signal for driving the agitator 33 are outputted.

When the predetermined operation is completed, the process returns to step 200, and in step 202, steps 200 to 2 are repeated until the absolute value becomes smaller.
The loop operation of 08 is repeated.

According to this embodiment, by arranging the outside temperature detector 11,
The concentration of washer fluid can be adjusted according to the outside temperature. Therefore, the freezing point of the washer fluid can be lowered to below the temperature outside the vehicle interior, and the washer fluid does not freeze on the windshield as in the past. Also, since the washer fluid is mixed according to the outside temperature, there is no need to use excess detergent fluid.

[Effects of the Invention] According to the first invention, by providing a storage tank for storing at least the first component material and the second component slurry 4 among the component materials constituting the washer fluid, replenishment of the component materials can be achieved. becomes easier.

= 15 According to the second aspect of the present invention, by controlling the mixing device NK of the washer device, it is possible to change the composition ratio of the component materials constituting the washer fluid.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a washer device according to a specific embodiment of the first and second inventions. FIG. 2 F1 is a plan view and a side view of the mixing device used in the same embodiment. FIG. 3 is a circuit diagram C' showing the flow of the first component material and the second component material in the mixing device used in the same embodiment. FIG. 4 is a block diagram of the concentration analysis of the mixed liquid used in the same example. FIG. 5 is a block diagram of the liquid level side of the mixing tank used in Example t. FIG. 6 is a temperature tσ-freezing point characteristic diagram of the washer fluid used in the same example. FIG. 7 is a characteristic diagram showing the concentration of the washer solution used in the same example versus the resistance of the washer solution. FIGS. 8 and 9 are flowcharts showing one gram processed by the 81 bright machine used in the same embodiment. Special Applicant [1Pondenso Co., Ltd. 1Figure 8 5TAR N05TART? l○O YES Tato Temperature] 02 EAD T Sweet tU-J Ubure 5 Melon Tt M-Do vs Bottom lt; Wasshida Akimu's Concentration Do Butsu Toru Washi Division 4 To R Face-to-face FADH Riggaij N . ES1O O Ho pulse? A]]2 YES 1゜, j￥-9”

Claims (6)

[Claims] (1) An automobile washer device comprising a storage tank for storing washer fluid and an injection device for injecting the washer fluid stored in the storage tank onto a cleaning surface, wherein the storage tank contains at least the washer fluid. a first storage tank that stores a first component material, and a second storage tank that stores a second component material, the first component material and the second component material are mixed, and the mixed liquid is sent to the injection device A washer device for an automobile, characterized in that it is provided with a mixing device that supplies water to the vehicle. (2) The mixing device has a fitting receiving part that removably supports the at least one storage tank, and with respect to the fitting receiving part,
2. The washer device for a motor vehicle according to claim 1, wherein said at least one storage tank is removably arranged. (3) The washer device for an automobile according to claim 1, wherein the first component material is water and the second component material is a detergent liquid. (4) An automobile washer device comprising a storage tank for storing washer fluid and an injection device for injecting the washer fluid stored in the storage tank onto a cleaning surface, wherein the storage tank at least constitutes the washer fluid. a first storage tank that stores a first component material and a second storage tank that stores a second component material, and at least mixes the first component material and the second component material, and injects the mixed liquid A washer device for an automobile, comprising: a mixing device for supplying water to the device; and a mixing ratio control device that operates the mixing device to adjust the mixing ratio of the component materials in the washer fluid. (5) The mixing ratio control device includes a temperature detector that detects the temperature of the surroundings where the washer fluid is injected, and an operation that calculates the mixing ratio of the component liquids according to a signal input from the temperature detector. The washer device for an automobile according to claim 4, characterized in that it has a portion. (6) The mixing ratio control device includes a light transmittance detector that detects the light transmittance of a surface onto which the washer liquid is sprayed, and a light transmittance detector that detects the light transmittance of the surface of the washer liquid, and a 5. The washer device for an automobile according to claim 4, further comprising a calculation section that calculates a liquid mixture ratio.