JPH07137610A - Car washing machine - Google Patents

Abstract

PURPOSE:To avoid breakage of a car body by way of preventing misconception by detecting a moving position of a car washing machine main body from a driving state of an electric motor to move the car washing machine main body, detecting the moving position from dogs fixed on a rail laid surface and comparing these detection results with each other in the car washing machine main body. CONSTITUTION:A rotary encoder as a first car washing machine position detection means is connected to an electric motor, and it gives a moving position of a car washing machine main body 1 by way of outputting a pulse signal. A position sensor 6 as a second car washing machine position detection means is provided on a lower part of the car washing machine main body 1, and it gives the moving position of the car washing machine main body 1 from dogs 7, 8, 9, 9 of a rail. Thereafter, a car washing machine position Ye is found from a counter value of the rotary encoder, and the dog 9 of Ya is detected by the position sensor 6. When a car washing machine position Yb at the time when a top brush comes to be positioned at a B position and Ye coincide with each other, the top brush is made to rise. In this case, when a difference of Ye and Ya exceeds a specified limit, a washing machine takes an action correcting an error thereafter.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled car wash device for sequentially performing cleaning, drying, and the like on a vehicle body.

[0002]

2. Description of the Related Art In a car wash machine of this type, a car wash processing device is controlled so as to avoid a portion such as a protrusion provided on a vehicle body, which is an obstacle to car wash. When performing such control,
It is necessary to know the position of the car wash processing device with respect to the vehicle body.

Generally, the running position of the car wash machine is calculated by the rotating direction of the running motor, the method of calculating the running position from the number of revolutions and the starting time, and the rotary shaft of the running motor is connected with a rotary encoder. It can be obtained by a method of outputting a pulse signal for each unit angle rotation while detecting the rotation direction, and calculating the traveling position from the number of pulses.

[0004]

By the way, in such a car wash machine, there are cases where the wheels run idle due to water, rain, snow or the like, and the running position detected by the car wash body is not equal to the actual running position. Further, when a rotary encoder is used, a pulse signal may not be obtained due to a failure of the encoder, and a correct traveling position may not be obtained.

When such a problem occurs, the actual position of the obstacle on the vehicle body differs from the position at which the car wash machine performs the avoidance operation, and the car wash processing device may come into contact with the obstacle and damage the vehicle body. .

[0006]

In order to solve the above problems, the present invention provides a running position detecting dock at a preset position along a running rail of a car washing machine main body, and An actual traveling position can be obtained by detecting the dock with a sensor provided in the.

[0007]

The actual traveling position thus obtained is compared with the traveling position detected from the drive state of the traveling electric motor of the car washing machine body to correct the position for avoiding the obstacle or interrupt the car washing. Avoid vehicle damage.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 is a car-washing machine main body formed in a gate shape so as to straddle the vehicle body, and electric motors 4 capable of forward and reverse rotation are provided.
The wheels 2 and 2 are rotationally driven by 4 to travel back and forth along the rails 3 and 3.

Reference numeral 5 denotes a rotary encoder which constitutes a first car wash machine position detecting means, which is connected to the output shaft of the electric motor 4 and outputs a pulse signal for every unit angle rotation while detecting the rotating direction of the electric motor 4. The traveling position of the car wash machine body 1 is given.

Reference numeral 6 is a position sensor which constitutes a second car wash position detecting means, and is a dog 7, 8 which is a protrusion provided on the lower part of the car wash main body 1 and fixed to the laying surface of the rail 3.
9 and 9 are sensed and switched to give the traveling position of the car wash machine body 1. The dog 7 gives a running start position of the car wash main body, the dog 8 gives a running limit position of the car wash machine main body, and the dogs 9 and 9 give arbitrary positions from the running start position of the car wash machine main body.

Reference numeral 10 is a top brush that moves up and down along the upper surface of the vehicle body, 11 is a side brush that opens and closes along the side surface of the vehicle body,
12 and 13 are sprinkler nozzles, 14 is a top drying nozzle, 15
Is a side surface drying nozzle, which constitutes a car wash processing device that performs processing such as cleaning and drying of the vehicle body as the car wash machine body 1 travels back and forth.

FIG. 3 is an explanatory diagram of the control system of the embodiment. 1
6 is a microcomputer, which is a CPU for performing arithmetic processing
17, memory 1 for storing programs and various data
8 and input / output interfaces 19 and 20,
The input interface 19 is connected to the rotary encoder 5 and the position sensor 6, and the output interface 20 is connected to the electric motors 4, 4, the top brush 10, the side brush 11, the sprinkling nozzles 12, 13, the upper surface drying nozzle 14,
The side drying nozzle 15 is connected.

Next, the operation of the embodiment of the present invention will be described with reference to FIG. FIG. 5 is a flowchart showing the operation of the embodiment, and FIG. 6 is a flowchart of an interrupt routine that is executed every time a pulse signal is input from the rotary encoder 5.

The car washer starts traveling from the traveling start position 7. Every time a pulse signal is input from the rotary encoder 5 as the car wash machine travels, the interrupt routine shown in FIG. 6 is executed and the counter E is incremented. The car wash machine position Ye is obtained from the value of the counter E. The car washer continues to run and the position sensor 6 detects the dog 9 at the position Ya. When the car wash machine positions Yb and Ye when the top brush is in the B position match, the car wash machine raises the top brush. When the car wash position Yc and Ye when the top brush is in the C position match, the car wash machine lowers the top brush. In this way, the top brush is moved up and down while avoiding the protrusion X provided on the vehicle body to wash the car.

When the difference between Ye and Ya exceeds the allowable limit Yf, the car wash machine stops the car wash. When the difference between Ye and Ya exceeds the limit Yg which does not require correction, the car wash machine performs the operation in which the error is corrected in the subsequent operation. In other words, the position B ′ where the top brush is a distance b away from B with respect to the obstacle X
When the car wash machine positions Yb ′ and Ye match, the car wash machine raises the top brush. Next, when the car wash position Yc 'and the Ye position where the top brush is positioned C'distance c from C to the obstacle X coincides with Ye, the car wash machine descends the top brush. In this way, the top brush is moved up and down in consideration of the error of the traveling distance with respect to the protrusion X provided on the vehicle body,
Avoid it safely.

It should be noted that the same control can be performed when the traveling position of the car wash machine is calculated from the rotation direction and rotation speed of the electric motor for traveling and the starting time without using the rotary encoder.

[0018]

As described above, according to the present invention, a running position detecting dock is provided at a preset position along the car wash machine running rail, and a sensor provided in the car wash machine is used to detect the dock. Since the actual traveling position can be obtained by detecting, the driving position of the car washing machine is compared with the traveling position detected from the driving state of the traveling electric motor, and the position to avoid obstacles is corrected or Can be interrupted to avoid damage to the vehicle.

[Brief description of drawings]

FIG. 1 is a side view for explaining an embodiment.

FIG. 2 is a front explanatory view of the embodiment.

FIG. 3 is an explanatory diagram showing a control system of the embodiment.

FIG. 4 is an operation explanatory diagram of the embodiment.

FIG. 5 is a flowchart for explaining the operation of the embodiment.

FIG. 6 is a flowchart for explaining the operation of the embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Car-washing machine main body 3 Rail 4 Electric motor 5 for traveling 5 Rotary encoder 6 which comprises the 1st traveling position detection means 6 Position sensor which comprises 2nd traveling position detection means 7, 8, 9 , 9 Dock 10, 11 Brush 12, 13 Sprinkling nozzle 16 Microcomputer as control means

Claims (1)

[Claims] 1. A car-washing machine body formed in a gate shape is provided with a car-washing processing device such as a brush, a water spray nozzle, and a blower, and the two parallel rails are laid on the floor across the car. In a car wash machine that travels back and forth through the vehicle to perform processing such as washing and drying of the vehicle body, first car wash machine position detecting means for detecting a travel position in the car wash machine body based on a drive state of a traveling motor of the car wash machine body And with the sensor provided in the car wash machine body,
By detecting a dock fixed to the rail laying surface, a second car washer position detecting means for detecting a traveling position, a traveling position by the first detecting means, and a traveling position by the second detecting means are detected. By comparison, the car wash machine is provided with a control means for avoiding damage to the vehicle body due to erroneous recognition of the traveling position of the car wash machine.