JPS6089708A - Displaying method of oil change period information on vehicle - Google Patents

Abstract

PURPOSE:To confirm an oil change period easily and accurately by displaying the running distance of a vehicle after an oil change as information on the oil change period. CONSTITUTION:A counter circuit 28 is backed up by an on-vehicle battery 34, so its running distance integral value 102 is held all the time. The integral value 102 is cleared with a reset switch 32 which is operated during oil changing work, and then the circuit 28 counts the signal 100 of a rotation detection sensor 30 when the vehicle is driven. The integral value 102 is displayed as oil change period information on a light emitting diode display device 16 through a driver 22. The lighting display is made on the basis of the operation position of a switch 38 in the period from the operation of the switch 38 to the start of the engine. Thus, the oil change period is confirmed easily and securely to perform oil maintenance suitably.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a method for displaying vehicle oil change time information, in which information regarding the time to change vehicle oil, such as engine oil, is displayed.

[Preliminary Technology] Oil is used in various parts of a vehicle for lubrication, etc., but when these oils deteriorate or are consumed, the original functions of the vehicle deteriorate.

Therefore, maintenance work such as replacing the oil is performed to prevent and prevent this functional deterioration, but conventionally, when deterioration and consumption of the oil is confirmed, or the distance traveled by the vehicle and the cost of oil replacement are increased. When it was confirmed that the predetermined distance for one period had been reached, the oil change time was determined.

Therefore, in the past, it was not possible to easily and accurately confirm the oil change time, which was inconvenient when performing on-vehicle maintenance.

[Object of the invention] The present invention has been made in view of the above-mentioned conventional problems, and
The purpose is to provide a method for displaying oil change time for a vehicle that allows easy and accurate confirmation of oil change time.

[Summary of the Invention] In order to achieve the above object, the present invention accumulates the distance traveled by a vehicle using a counter circuit that is backed up by an on-vehicle reservoir and can be reset by operation. The present invention is characterized in that it detects a period from when the engine is started, and displays the cumulative mileage value of the counter circuit during the period as information on oil change timing.

[Embodiments of the Invention] An example of an apparatus to which the method according to the present invention is applied will be described below based on the drawings.

This device is integrated with a vehicle-mounted waiting hand, and the device shown in FIG. 1 is composed of a display unit 10 and a display control circuit 12 that controls the display of the display unit 10.

The display unit 10 consists of a display 14 that displays a clock, and a light emitting diode display 16 that displays the distance traveled by the vehicle as oil change time information. 10 light emitting diodes arranged 18-1.18-2.18-3.18-4.18
-5.18-6.1B-7,18-8,18-9,18
-10 6 said light emitting diode 18-1.1B-2,18-3,1
8-4, 18-5, 18-6, 18-7, 18-8, 1
Lights 8-9 and 18-10 are turned on sequentially every time the vehicle travels 11,000 km. When the vehicle has traveled 1100km, all of them are lit to indicate that it is time to change the oil (engine oil in this case).

The display control circuit 12 also includes a driver 20 that drives the display 14, and each light emitting diode 18-1.18-2.18.
-3.18-4.18-5.18-6.18-7.18
-Driver 2 that drives lighting of 8.18-9.18-10
2.

The driver 20 is controlled by a clock control circuit 24, and a clock crystal resonator 26 is connected to the clock control circuit 24.

A counter circuit 28 is also connected to the driver 22, and this counter circuit 28 has a rotation detection sensor 30. And a reset switch 32 is connected.

The contents held in this counter circuit 28 are cleared by a reset switch 32 that is turned on at the time of oil change, and then the rotation detection signal 1 is supplied from the rotation detection sensor 3o.
It is possible to calculate the cumulative mileage value 102 after oil change by counting the number of times.

The counter circuit 28 is constantly supplied with an operating voltage from the on-vehicle battery 34, thereby backing up the cumulative mileage value 102.

Further, the driver 22 switches the light emitting diodes tg-t, tg-2, 18-3, 1 according to the cumulative mileage value 102.
8-4, 18-5, 18-6, 18-7, 18-8, 1
8-9 and 18-1o, but this driver 22 is connected via a power switch circuit 36 and an ignition switch 38! Operating current is supplied from the it Q battery 34.

E: The ignition switch 38 is an off operation terminal 40,
It is equipped with an accessory operation terminal 42, an ON operation terminal 44, and a start operation terminal 46, and the output current of the vehicle battery 34 is transmitted to the power switch circuit 36 via the accessory operation terminal 42 and the ON operation terminal 44, and to the start operation terminal 46.
is supplied to the starter 48 via. Furthermore, the output voltage of a terminal 50 provided in the starter 48 is supplied to the power switch circuit 36.

This power switch circuit 36 includes an accessory operation terminal 42,
It consists of a main circuit opening/closing switch inserted into the main power circuit extending from the ON operation terminal 44 to the power input terminal of the driver 22, and a switch control circuit such as a flip-flop circuit for controlling the switch on/off.

Furthermore, the switch control circuit described in 1-1 is capable of driving the main circuit opening/closing switch so that the operating current is supplied to the driver 22 when the ignition switch 38 is operated from the OFF operation position to the 7-way or ON operation position. , can supply the timer start signal 104 to the clock control circuit 24 simultaneously with the driving thereof.

This clock control circuit 24 receives the above-mentioned timer start signal 1.
A time-up signal 106 can be supplied to the switch control circuit at time-up 1 several seconds after the input of signal 04.

Then, the switch control circuit receives this time-up signal 106.
is supplied to the driver 22, or when the ignition switch 38 is operated to the start operation position and it is confirmed by the output voltage of the L terminal 50 that the starter 48 has operated (that is, the engine has been started). The main circuit opening/closing switch can be driven so that the supply of operating current to the main circuit is stopped.

A display stop switch 52 for forcibly stopping the supply of operating current to the driver 22 is connected to the power switch circuit 36.

Further, the clock control circuit 24 and the driver 20 controlled by the clock control circuit 24 are backed up by an on-vehicle battery 34, and the background of the display device 14 is illuminated by a lighting device (not shown).

The wood flow side consists of the above structure, and its operation will be explained below.

Since the clock control circuit 24 and the driver 22 controlled by the clock control circuit 24 are backed up by the in-vehicle battery 34, a clock is always displayed on the display 14.

Furthermore, since the counter circuit 28 is also backed up by the on-vehicle battery 34, the cumulative mileage value 102 is always held.

The cumulative mileage value 102 is cleared by operating the reset switch 32 at the time of oil change, and when the vehicle is subsequently driven, the rotation detection signal 100 from the rotation detection sensor 30 is counted by the counter circuit 28.

The cumulative mileage value 102 determined by the counting operation of the counter circuit 28 is transmitted to each light emitting diode 18-1.18-2.18 of the light emitting diode display 16 by the driver 22.
-3.18-4.18-5, l 8-6, 18-7,
18-8, 18-9, and 18-10 are lit to indicate oil change time information, but as shown below, the lit display changes from the time when the ignition switch 38 is operated, which is detected based on the operating position of the ignition switch 38. This is done during the period until the engine is started. When the vehicle is driven, the ignition switch 38 is operated, but since the ignition switch 38 is in the OFF position before the operation, the cumulative mileage value 102 is displayed on the light emitting diode display 16. Not lit and displayed.

Thereafter, when the ignition switch 38 is operated to the accessory or on operation position, the accessory operation terminal 42
Alternatively, since the operating current is supplied to the driver 22 via the ON operation terminal 44 and the power switch circuit 36, the light emitting diode display 16 displays the mileage accumulation (If l
A lighting display of O2 is performed.

This lighting display indicates that the vehicle mileage after oil change is 110.
At 00k, only the light emitting diode 18-1, 20
At 00 km, light emitting diode 18-1.18-2
However, when the distance is 3000 km, the light emitting diode 18-1.
18-2 and 18-3 are each lit, one light emitting diode is lit every time the vehicle travels 11,000 km after an oil change.
8-1, 18-2, l 8-3, l 8-4,
l 8-5, l 8-6, 18-7, l 8-8,
1 8-9 and 18-10 are lit in sequence, and the vehicle is 1ooo.

When it is time to change the oil after driving a kilometer, all light emitting diodes 18-1.18-2.18-3.18
-4.18-5.18-6.18-7.18-8.18
-9, 18-10 are lit.

In this way, a graphical display is provided on the display 16, so that slow drivers can see how much longer the vehicle can travel before the oil needs to be changed, or if the oil change period has already passed. One can be immediately and reliably seen.

Therefore, even if the clock control circuit 24 times up and the period of the lighting display is limited to several seconds until the time-up signal 10B is supplied to the power switch circuit 36, the above-mentioned visual recognition is reliably performed.

In addition, since the oil change time can be visually checked immediately in this way, if it is determined that the display is not necessary, the driver can further operate the ignition switch 38 to activate the starter 48 and start the engine. .

When the engine is started, the power switch circuit 36
The output voltage of the starter terminal 50 causes the supply of operating power to the driver 22 to be stopped.

Therefore, when the engine is started, the lighting display of the single light emitting diode display 16 is stopped.

In this manner, the lighting display is turned off while the vehicle is running, so that the driver is prevented from mistaking the display for another display.

In addition, immediately after changing the oil, the light emitting diode indicator 16
Since the lighting display is not required, the lighting display is stopped by operating the display stop 1 switch 52.

As explained below, according to this embodiment, the mileage traveled by the vehicle after the oil change is displayed as information on the oil change time, so the oil change time can be easily and reliably confirmed, and oil maintenance can be carried out. It is suitable for those who do it.

Furthermore, since the factor determining the oil change timing is limited to the mileage of the vehicle, the configuration of the device can be simplified and its cost can be reduced.

Furthermore, the cumulative mileage value of the vehicle is displayed for a predetermined period of time before the vehicle starts running, and is not displayed while the vehicle is running, so the display prevents the reincarnated driver from being misunderstood. It can be made 1.

Since the period of the above-mentioned display is determined based on the operating position of the ignition switch, it is possible to simplify the configuration and reduce the cost of the device.

In addition, according to this embodiment, since the on-board clock and water device are integrated, it is possible to further reduce costs.
It is also possible to save space on the display surface.

More display stops! Since the lighting display can be disabled by operating the switch, this is extremely suitable for use of the device.

Since the display is performed graphically, the display can be performed reliably and quickly.

Furthermore, since the display is lit, visibility is extremely high and the display is also excellent in terms of design.

[Effects of the Invention] As explained below, according to the present invention, the distance traveled by the vehicle after the oil change is displayed as information on the oil change time, so the oil change time can be easily and reliably confirmed, and the oil change time can be easily and reliably confirmed. It is suitable for carrying out maintenance.

Furthermore, since the factor that determines the timing of oil change is limited to only the mileage of the vehicle, the configuration of the device can be simplified and costs can be reduced.

Furthermore, since the cumulative mileage value of the vehicle is displayed for a predetermined period of time before the vehicle starts running, and is not displayed while the vehicle is running, this display can prevent drivers who are taking a detour from being misled. .

Since the period of the display is determined based on the operating position of the ignition switch, it is possible to simplify the configuration and reduce the cost of the device.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram showing an example of a device to which the present invention is applied. 16-φ light emitting diode display, 22-fist driver, 24-clock control circuit, 28-counter circuit, 30-rotation detection sensor, 3211-reset switch, 34-fist 9 vehicle battery, 36...Power switch circuit. 38...Ignition switch, No. 48/Starter. Agent Patent Attorney Atsushi Nakajima Procedural Amendment February 15, 1981 1. Case description 1988 Patent Application No. 198861 3. Person making the amendment Relationship with the case Applicant Appointment Location Toyota Town, Toyota City, Aichi Prefecture 1 (320)) Yota Jidosha Co., Ltd. Representative: Mori 1) Masatoshi 4, Agent address: 2-20-12-6 Yoyogi, Shibuya-ku, Tokyo, Specification subject to amendment

Claims (1)

[Claims] (1) A counter circuit that is backed up by an on-board battery and can be reset by operation accumulates the distance traveled by the vehicle, and detects the period from when the ignition switch is operated until the engine is started based on the operating position of the ignition switch. A method for displaying oil change time information for a vehicle, characterized in that the cumulative mileage value of the counter circuit is displayed as oil change time information during a period.