JPS6211298Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is designed to warn the degree of decrease in engine oil in at least two stages in a vehicle equipped with a two-stroke engine having a separate oil supply system. The present invention relates to an oil level warning device that displays information in a more highly visible manner as oil level decreases.

(Prior art) Conventionally, two-stroke engines used in motorcycles, etc., generally employ a separate oil supply system, but engines with this system consume more oil than four-cycle engines, so You must pay attention to the amount of oil in the oil tank. In order to make the driver pay attention to the oil level, conventional methods have been taken to set a single liquid level and turn on a warning light by detecting this set liquid level.

(Problem that the invention seeks to solve) However, since this method only displays the oil replenishment warning once, there is a risk that the driver may overlook it for some reason, and it is necessary to prevent the driver from overlooking it. The driver had to be constantly alert, and there was a risk that an extra burden would be placed on the driver.

The present invention was developed to solve the above problems, and the purpose of the present invention is to display a warning display at multiple stages in order to further inform the driver when it is time to refill the oil. An oil level warning that improves the warning effect by changing the display method to a more visible method as the oil level decreases, and by preventing warnings from not being displayed due to abnormalities in the warning circuit. We are in the process of providing equipment.

(Means for solving the problem) In order to solve the above problem, the present invention provides a plurality of liquid level detecting elements at different heights in the oil tank, and each liquid level detecting element except the lowest liquid level detecting element is A warning circuit that drives a warning means corresponding to each liquid level detecting element in accordance with the detecting operation of the liquid level detecting element, and a warning corresponding to the liquid level detecting element in accordance with the detecting operation of the lowest liquid level detecting element. A lowest warning circuit is provided to drive the means to have a stronger warning effect than the other warning means, and when the power switch is turned on, each liquid level detection element except the lowest liquid level detection element is turned on. By doing so, a detection circuit is provided to notify that each liquid level detection element, corresponding warning means, and warning circuit are not abnormal.

(Effect of the above means) According to the above means, a warning is displayed in multiple stages, and when the oil decrease level reaches the lowest level, the degree of warning becomes higher, and the warning is displayed for a predetermined period of time from when the power switch is turned on. Since the warning light illuminates brightly during the period, it can be confirmed that there is no abnormality in each detection element except the lowest detection element, the corresponding warning means, and the warning circuit, which prevents the warning from not being displayed and increases the warning effect. can be increased.

(Embodiment) A preferred embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a circuit diagram of an oil level warning device according to the present invention, and the circuit section 1 in the figure is an oil level switch circuit which is a main part of the circuit for issuing a warning according to the present invention. In FIG. 1, 2 is a vehicle battery which is a power source, and 3 is a main switch which, when turned on, can supply electricity to the entire electrical system of the vehicle. Numeral 4 is a warning light placed close to the vehicle's gauges, which lights up when the first oil level is reached, and numeral 5 is a similar warning light that lights up when the second oil level is reached. Sometimes, it blinks due to the operation of the relay 6. Note that this relay 6 is made of, for example, a capacitor or a Bimel type, and its contacts are turned on and off at predetermined intervals. An example of the arrangement of the warning lights 4 and 5 is specifically shown in FIG. 4, and the warning lights 4 and 5 are arranged side by side on an instrument panel 8 provided with meters 7 of the motorcycle.

Inside the circuit 1, two reed switches 9 and 10 are included as circuit elements, and the reed switch 9 functions as a sensor for detecting a first oil level (liquid level). The reed switch 9 is connected in series with a protective resistor 11 between the output terminal a and the ground terminal b of the warning light 4, and includes the battery 2, the main switch 3, the warning light 4, the reed switch 9, and the resistor 11. A warning circuit for the warning light 4 is configured. In addition, a resistor 21 is connected in parallel between both terminals a and b, and by setting the resistance value of this resistor 21 in advance to a value that allows the warning light 4 to light dimly and brightly, the warning light 4 can be operated normally. It can be visually recognized at all times. On the other hand, the reed switch 10 is set to the second oil level (liquid level).
It is connected in series with voltage dividing resistors 12 and 13 between the output side terminal c and the ground terminal b of the main switch 3, and these resistors 1
The gate of thyristor 25 is connected to the midpoint between 2 and 13. The thyristor 25 has an anode connected to a terminal d, a cathode connected to a ground terminal b, and a terminal d.
A control terminal of the relay 6 is connected to the terminal.
Then, the lowest liquid level detection element is detected by the reed switch 10, and the battery 2, main switch 3, relay 6, warning light 5, and reed switch 1 are activated.
0, resistors 12 and 13, and a thyristor 25 constitute the lowest warning circuit, and as the reed switch 10 turns on, the thyristor 25 drives the relay 6, causing the warning light 5 to blink.

To explain how the reed switches 9 and 10 are actually installed in a vehicle, as shown in FIG. It is attached to a predetermined position inside the cylindrical member 16 which is disposed in a hanging state. To specifically illustrate this in FIG.
The reed switch 10 is placed at the upper position and the reed switch 10 is placed at the lower position, and the reed switch 9 is set at the oil level 10 at the second oil level. Cylindrical member 16
is provided with a ring-shaped float 17 for detecting liquid level made of styrofoam or the like, which is loosely inserted into a hole 17a in the center, and at a predetermined location on the inner surface of the hole 17a of the float 17. Third
Since a ring-shaped magnet 18 as shown in the figure is provided, the level of the oil 19 can be detected by the magnetism of the magnet 18 acting on the reed switches 9 and 10. That is, when the float 17 floating on the surface of the oil 19 falls downward due to consumption of the oil 19, the reed switch 9 is first turned on, and when the oil 19 further decreases and descends, the reed switch 10 is then turned on. It acts to make it happen. Note that the wiring of the reed switches 9 and 10 extends upward and is led out to the outside via the plug member 15. By the way, 20 is the lead wire.

Let us return to the explanation of the circuit configuration. In FIG. 1, a series circuit is provided between terminals c and b, consisting of an electromagnetic coil 22 that causes the reed switch 9 to act as a relay contact, a capacitor 23, and a parallel circuit of a protective resistor 24. The electromagnetic coil 22, the capacitor 23, and the resistor 24 constitute a detection circuit that confirms that there is no abnormality in the warning circuit including the reed switch 9 and the like.

In the above circuit, when the main switch 9 is turned on when the amount of oil is appropriate, first the coil 22
Since the coil 22 is in an excited state for a certain period of time until a current flows and the capacitor 23 is charged,
The reed switch 9 turns on and the warning light 4 lights up brightly. Thereby, it can be confirmed that there is no abnormality in the warning circuit including the warning light 4, reed switch 9, etc. Further, after a predetermined period of time has elapsed, the warning light 4 lights up dimly and brightly, so that it can be visually confirmed at all times that the main switch 3 and the warning light 4 are not abnormal. When sufficient oil is supplied to the oil tank 14, the float 17 is located above the tank, so the reed switches 9 and 10 do not operate, and therefore the oil level switch circuit 1 warns the user. No action occurs.

Next, when the oil 19 in the oil tank 14 decreases, the float 17 also descends, and eventually the magnet 18 first turns on the higher reed switch 9. This is the first set level of the oil level for generating the first stage warning, and this set level is determined by the installation height of the reed switch 9. If reed switch 9 is turned on,
Current flows through resistor 11, resulting in warning light 4
lights up and gives the first stage warning.

If the driver continues to ride the vehicle without replenishing oil in response to the first stage warning, the oil 19 will further decrease, the float 17 will descend, and the magnet 18 will turn on the reed switch 10. This is the second
The second level of oil level to generate a stage warning.
This setting level is determined by the installation height of the reed switch 10. When the reed switch 10 is turned on, the voltage dividing resistors 12 and 13
A current flows through the thyristor 2 from its midpoint.
Since the trigger enters the gate 5, the thyristor 25 becomes conductive, causing the relay 6 to become energized,
This causes the warning light 5 to blink. In this way, the driver becomes acutely aware of the necessity of oil replenishment due to the blinking of the warning light 5.

In the above embodiment, the oil level switch circuit 1 can be installed inside the plug member 15, or can be installed at any other suitable location on the vehicle. Further, in the above embodiment, the warning display method is set to two stages, but the method is not limited to this, and it is possible to provide a warning in more stages.Furthermore, other warning means (buzzer, etc.) can be used instead of the warning light. ) can of course be used.

(Effect of the invention) As is clear from the above explanation, according to the invention,
The oil replenishment warning can be displayed in multiple stages, and the level of the warning increases as the degree of oil decrease increases, making it possible to more emphatically convey to the driver the need for oil replenishment. This eliminates the risk of the driver overlooking the warning display, and does not place any additional burden on the driver. Further, since a circuit for confirming an abnormality is provided, it is possible to prevent a warning from not being displayed due to an abnormality in the warning circuit, and it is possible to improve the warning effect.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a circuit diagram of a warning device according to the present invention, FIG. 2 is a longitudinal cross-sectional view showing how the warning device is installed in an oil tank, and FIG.
The figure is an enlarged vertical sectional view of section A in FIG. 2, and FIG. 4 is a plan view of the instrument panel showing the specific arrangement of warning lights. In addition, in the drawing, 1 is the oil level switch circuit,
4 and 5 are warning lights, 6 is a relay, 9 and 10 are reed switches, 17 is a float, and 18 is a magnet.

Claims (1)

[Scope of utility model registration request] In an oil level warning device that warns of oil replenishment by detecting the oil level position in the oil tank of a two-stroke engine with separate oil supply system, there are multiple warning devices installed at different heights in the oil tank. A warning circuit is provided with a liquid level detecting element and drives a warning means corresponding to each liquid level detecting element in accordance with the detection operation of each liquid level detecting element except for the lowest liquid level detecting element, and A warning circuit is provided at the lowest level, which drives a warning means corresponding to the liquid level detecting element in accordance with the detection operation of the liquid level detecting element so as to have a stronger warning effect than the other warning means. A detection circuit is provided that turns on each liquid level detection element except for the lowest liquid level detection element to notify that each liquid level detection element and its corresponding warning means and warning circuit are not abnormal. An oil level warning device featuring: