KR19990007696A - Consumables replacement time display device according to the car mileage - Google Patents

Abstract

The present invention is to display the time to replace the consumables according to the mileage in the vehicle equipped with a sensor type mileage indicator, the driver recognizes when the mileage of the consumables is matched with the mileage of the consumable input in advance It is equipped with a device that displays and notifies to the driver, so that the driver can exchange consumables in a timely manner so that each component of the vehicle can function smoothly according to the mileage of the car to make the vehicle run more stably. It is an object of the present invention to provide a consumable replacement time display device.

The present invention for achieving the above object is an input circuit unit for receiving a pulse signal corresponding to the driving distance of the vehicle, and counting the driving distance pulse input through the input circuit unit to convert the count value to the driving distance and A microcomputer for comparing the converted driving distance with the driving distance for each consumable item, a display unit for displaying the replacement time of the consumable according to the comparison result of the driving distance converted from the micom and the driving distance for each consumable item, and after replacing the consumables displayed on the display unit. And a reset circuit for resetting the accumulated travel distance in the microcomputer corresponding to the consumables, and a power supply circuit for supplying DC stabilized power to the input circuit unit, the microcomputer, and the display unit.

Description

Consumables replacement time display device according to the car mileage

The present invention is to display the time to replace the consumables according to the mileage in a vehicle equipped with a sensor type mileage indicator, in particular a one-chip micro-computer in which a CPU, RAM, ROM is embedded in one chip The present invention relates to a device for inputting a program to display replacement time of automobile consumables.

In general, a vehicle is equipped with a number of devices for driving the vehicle, and requires a lot of consumables in order to drive these devices smoothly. For example, engines and transmissions, which are the core components of the vehicle's constituent devices, are prevented from being worn by friction in the process of driving the engine and the transmission, cooling action to absorb frictional heat, and washing to remove oil impurities. The engine oil and the gear oil are inserted into the engine and the transmission, respectively.

In addition, moisture is generated during the lubrication of the lubricant and mixed with the lubricant, and metal powder generated by mechanical friction inside the engine and the transmission is mixed with the lubricant to prevent lubrication and in severe cases, the engine And an oil filter is installed in the engine and the automatic transmission to prevent damage to the transmission, thereby filtering the lubricating oil.

These are all consumables that contribute to extending the life of the car by making the car run smoothly. When used for a certain period of time, the lubricating oil has a low viscosity and can no longer function, and the oil filter also has a limitation in filtering out impurities in the oil. Its life span is not permanent, and must be replaced regularly at regular intervals. That is, the time to replace the lubricating oil and the oil filter is somewhat different depending on the conditions of the road on which the car runs, but in general, the engine oil is suitable for replacement of 3000 Km-6000 Km and oil filter 4500 Km-8000 Km is suitable, the transmission lubricant is about 30000 Km for manual transmission oil, 40000 Km-50000 Km for automatic transmission oil and filter.

In addition to the above-mentioned consumables used in automobiles, various consumables are used according to each component and model of the vehicle, and the replacement cycle of each consumable varies according to each component and model of the vehicle. Be sure to familiarize yourself with the replacement cycle of each consumable for your vehicle, and then check the mileage on your car's meters from time to time.

However, in a rapidly changing age like modern society, there are many things to worry about, and there are many things to be aware of and always know about new things. In addition, as the widespread use of automobiles, drivers who lack expertise in automobiles occupy the majority, and the reality is that drivers who do not know the replacement cycle of the consumables occupy a large number.

Therefore, the use of the car continues without forgetting the replacement cycle as described above. As a result, a problem has been raised that the performance of each component of the car is degraded and the result is that the life of the car is shortened.

The present invention has been made to solve the above problems, the object of the present invention is to recognize the mileage of the vehicle and when the match with the mileage of the consumables input in advance, it is provided with a device for indicating and indicating to the driver In addition, it provides a consumable replacement time display device according to the mileage of the car that allows the driver to change the consumables at an appropriate time so that each component of the car can function smoothly. have.

The present invention for achieving the above object is an input circuit unit for receiving a pulse signal corresponding to the driving distance of the vehicle, the driving distance pulse input through the input circuit unit is counted and converted the count value to the driving distance and the A microcomputer for comparing the converted driving distance with the driving distance for each consumable item, a display unit for displaying the replacement time of the consumable according to the comparison result of the driving distance converted from the micom and the driving distance for each consumable item; And a reset circuit for resetting the cumulative driving distance in the microcomputer corresponding to the consumables, and a power supply circuit unit for supplying DC stabilized power to the input circuit unit, the microcomputer, and the display unit. Even when the ignition is turned off, the power is supplied and the DC stabilized power is backed up before By allowing to be supplied to each part circuit comprises a back-up battery connected to the voltage regulator and its output terminal is characterized by configured.

1 is a system circuit for explaining the apparatus of the present invention.

2 is a constant voltage and secondary voltage circuit for driving the device of the present invention;

Figure 3 is a flow chart for explaining the apparatus of the present invention

Explanation of symbols for the main parts of the drawings

(1) Input circuit section (2) Microcomputer (3) Display section

(4) Reset circuit (5) Power supply circuit (LED0) to (LED7) replacement indicator

(L0) to (L7) LED connector (S / W-R0) to (S / W-R7) Exchange confirmation button

When described in detail based on the accompanying drawings of the present invention as follows.

1 is a system circuit diagram for explaining the apparatus of the present invention, FIG. 2 is a constant voltage and secondary voltage circuit for driving the apparatus of the present invention, and FIG. 3 is a flowchart for explaining the present invention.

As shown in the drawing, according to the present invention, an input circuit unit 1 for receiving a pulse signal corresponding to a driving distance of a vehicle and a driving distance pulse counted through the input circuit unit 1 are counted and the count value is calculated. And a display unit for displaying the replacement time of the consumables in accordance with a comparison result of the mileage converted in the micom 2 and the mileage for each consumable item converted from the micom 2. (3), a reset circuit (4) for resetting the accumulated travel distance in the microcomputer (2) corresponding to the consumable after replacing the consumables indicated on the display unit (3), the input circuit unit (1) and the microcomputer (2) and the power supply circuit unit 5 for supplying the DC stabilized power to the display unit 3 is formed, and the power supply circuit unit 5 is supplied with power even when the vehicle is turned off to stabilize the DC. It was constructed to form a positive voltage regulator 6 and the back-up battery (7) connected to its output so that the power can be supplied to the circuit parts to the backup supply.

According to the present invention configured as described above, the pulse signal coming up to the input circuit unit 1 is sent to the microcomputer 2, and the microcomputer 2 counts the pulse signal and converts the value into a mileage (typically depending on the vehicle type. 2 or 4 pulses are generated when 1 turns, but for convenience of explanation, it is assumed that 1 pulse per 1 km) is compared with the converted mileage and the mileage for each consumable item. Therefore, if there is a consumable item to be replaced among the consumable items, the display unit 3 is displayed. When the power is first applied, the microcomputer 1 is initialized and the LED connection terminals L0 to L7 and individual reset terminals RE0 to RE7. ) Goes high and waits for input.

After that, when the vehicle is driven and a pulse signal is input to the input terminal IN, the microcomputer 2 counts the pulse signal and converts the pulse signal into a driving distance, and repeats this process.

When the mileage accumulates as described above and reaches the replacement time of the consumables, the display unit 3 displays the same. When the engine oil is described as an example, 5000 pulses are counted and converted into the mileage, and the microcomputer 2 The engine oil exchange indicator LED0 of the display unit 3 is turned on by switching the LED connection terminal L0 to a low state in the microcomputer 2 that compares and detects the engine oil. Let. When the engine oil change indicator LED0 is turned on, the driver knows that the time to replace the engine oil has arrived, and thus, the engine oil is replaced.

Thereafter, when the driver presses the engine oil change confirmation button S / W-R0 of the reset circuit 4, the driver detects that the reset terminal RE0 is changed from a high state to a low state, thereby lowering the LED connection terminal L0. Transition from high to high, and also set the count to zero and turn off the engine oil change indicator (LED0).

In Figure 1, eight consumables can be displayed, but this is exemplary and more consumables can be displayed as needed.

As described above, the present invention is provided with a device for recognizing the driving distance of the vehicle and recognizing the driving distance of the consumable input in advance and displaying it to the driver so that the driver can exchange the consumable at an appropriate time. As a result, each component of the car can function smoothly so that the car can run more stably, and the driver always pays attention to the car because of the different timing of replacement of consumables. The invention eliminates the inconvenience to check.

Claims (2)

An input circuit unit 1 for receiving a pulse signal corresponding to the driving distance of the vehicle, a driving distance pulse input through the input circuit unit 1 is counted, and the count value is converted into a driving distance, and the converted driving distance And a display unit 3 for displaying the replacement time of the consumables in accordance with a comparison result of the mileage converted by the microcomputer 2 and the mileage for each consumable item, and the display unit ( After replacing the consumables indicated in 3), a reset circuit 4 for resetting the accumulated traveling distance in the microcomputer 2 corresponding to the consumables, the input circuit unit 1, the microcomputer 2, and the display unit 3 Consumables replacement time display device according to the mileage of the vehicle, characterized in that it comprises a power supply circuit (5) for supplying a DC stabilized power to the. The method of claim 1, The power supply circuit unit 5 includes a constant voltage regulator 6 and a backup rechargeable battery 7 connected to an output terminal of the power supply circuit unit 5 to supply DC stabilized power to each circuit as a backup power source even when the vehicle is turned off. Consumables replacement time display device according to the mileage of the vehicle, characterized in that configured.