KR19980052186A - Water Pump Control Unit Of Car - Google Patents

Abstract

In order to provide a water pump control apparatus for an automobile that can cause the water pump to not operate when the temperature of the combustion head of the cylinder head is lower than the temperature suitable for the combustion conditions, and to rapidly heat the temperature to the temperature suitable for the combustion conditions, The temperature sensor 2 is mounted at a predetermined position around the combustion chamber of the cylinder head, and the engine control device 4 which controls the operation of the electromagnetic clutch 14 according to the measured value t of the temperature sensor 2 is a temperature sensor. (2) is electrically connected to the electromagnetic clutch 14, and the outer circumference of the main shaft 12 located at the inner circumference of the pulley 10 of the water pump 8 is electrically connected to the engine control device 4 to The electromagnetic clutch 14 which controls the operation | movement of (8) is attached.

Description

Water pump control unit of the car.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for controlling a water pump of an automobile. In particular, when the combustion chamber temperature of a cylinder head is lower than a temperature suitable for a combustion condition, the water pump is not operated so that the vehicle can be rapidly heated to a temperature suitable for the combustion condition. It relates to a water pump control device.

As environmental pollution prevention has become a global goal in recent years, measures to prevent air pollution caused by exhaust gas of automobiles, which are the main culprit of air pollution, are urgently required, and thus, regulations on emissions are greatly tightened than before.

The exhaust gas from the vehicle described above is exhaust gas, which is fuel which is burned in a cylinder and then discharged to the outside through an exhaust pipe, blow-by gas that passes through a gap between a cylinder and a piston and into a crankcase, a carburetor or a fuel tank. Most of the fuel evaporation gas, which is gas which is evaporated and released into the atmosphere, is a toxic substance among the above-mentioned emission gases, such as carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx).

When starting in a low temperature environment such as winter, the vaporizer is badly atomized and the inhaled mixer comes into contact with a cold manifold or cylinder wall and part of the gasoline condenses into a liquid state or particle state. The dark mixture is sent to the engine, which causes insufficient amount of air to generate carbon monoxide, and the combustion temperature is low, thereby increasing the amount of hydrocarbons generated.

In order to reduce such harmful emissions as mentioned above, in particular, great care is taken in designing a vehicle, and the above-described harmful emissions reduction method is shown below.

As a countermeasure for the above-mentioned fuel evaporation gas, the gasoline vapor evaporated from the fuel tank is temporarily stored, and when the engine rotates, it is sent to the intake system for combustion, and as a countermeasure against the blow-by gas, the blow-by gas is not discharged to the atmosphere. A blow-by gas reduction device is sent back from the crankcase to the intake system for recombustion. The emission concentrations of carbon monoxide and hydrocarbons in the exhaust gas are mainly dependent on the mixing ratio of the mixer, and the emission concentrations of nitrogen oxides are mainly dependent on the combustion temperature. As a countermeasure against the exhaust gas, the engine may be improved, the stratified air supply combustion method may be employed, or the thermal reactor method or the catalytic converter method may be employed.

Despite the problem that the production cost is increased to reduce the amount of harmful gas in the exhaust gas as described above, a number of methods as described above are used, but there is no effective countermeasure against the exhaust gas at low temperature start-up.

Therefore, an object of the present invention is to solve the above-mentioned problems, the car is not able to operate the water pump when the combustion chamber temperature of the cylinder head is lower than the temperature suitable for the combustion conditions, it is possible to rapidly heat to a temperature suitable for the combustion conditions To provide a water pump control device.

The object of the present invention described above is to mount a temperature sensor at a predetermined location around the combustion chamber of the cylinder head, and the engine control device is electrically connected to the temperature sensor to control the operation of the electronic clutch according to the measured value of the temperature sensor, and the water pump The outer circumference of the main shaft located on the inner circumference of the pulley is implemented in a configuration equipped with an electronic clutch electrically connected to the engine control device to control the operation of the water pump.

In the present invention, when the temperature of the combustion chamber measured by the temperature sensor is less than the predetermined temperature, the engine control device idles only the pulley, and when the temperature of the combustion chamber is above the predetermined temperature, the pulley and the electromagnetic clutch are simultaneously driven. As such, the combustion chamber is heated rapidly until it reaches a temperature suitable for combustion.

The figure is a schematic diagram which shows the water pump control apparatus of an automobile.

Explanation of symbols on the main parts of the drawings

2: temperature sensor 4: engine control device

8: water pump 10: pulley

12: spindle 14: electromagnetic clutch

Preferred embodiments of the present invention configured as described above will be described in detail with reference to the accompanying drawings.

Figure is a schematic diagram showing a water pump control apparatus according to the present invention.

The temperature sensor 2 is attached to a predetermined position around the combustion chamber of the cylinder head, and the engine control device 4 is electrically connected to the temperature sensor 2 described above.

The electromagnetic clutch 14 which is electrically connected to the engine control device 4 described above to the outer circumference of the main shaft 12 located at the inner circumference of the pulley 10 of the water pump 8 controls the operation of the water pump 8. To be fitted.

An embodiment of a water pump control device implemented in the configuration of the above drawings will be described below.

The measured value t measured by the temperature sensor 2 mounted at a predetermined position around the combustion chamber of the cylinder head is converted into an electrical signal and transmitted to the engine control device 4, and the measured value t is the engine control device 4. ) Is compared with a predetermined temperature T to enable normal combustion.

When the comparison result is the measured value t is smaller than the storage temperature T of the engine control device 4, the pulley 10 in the water pump 8 idles, and the comparison result indicates that the measured value t When the storage temperature T of the engine control device 4 is greater than the storage temperature T of the engine control device 4, the electromagnetic clutch 14 electrically connected to the engine control device 4 is driven together with the pulley 10 and the water pump 8 is operated. Will work.

Therefore, according to the present invention, since the water pump 8 is not operated until the temperature of the combustion chamber of the cylinder head becomes normal combustion, and rapid heating is possible, it is possible to prevent harmful exhaust gas from the combustion during cold. Emissions are greatly reduced.

As described above, according to the present invention, the water pump is not operated until the temperature of the combustion chamber of the cylinder head can be normally burned, and rapid heating is possible, so that the amount of harmful emissions caused by cold combustion is greatly reduced. Since the emission gas is lower than the emission gas regulation value, the air pollution is greatly reduced, and the merchandise of the product is greatly improved.

Claims (1)

In the water pump control apparatus of an automobile, A temperature sensor 2 mounted at a predetermined position around the combustion chamber of the cylinder head and measuring the temperature in the combustion chamber, and electrically connected to the temperature sensor 2 described above, and the measured value t of the temperature sensor 2 and the predetermined temperature T ) Is mounted on the outer circumference of the engine control device 4 for controlling the operation of the electromagnetic clutch 14 and the main shaft 12 located on the inner circumference of the pulley 10 of the water pump 8, A water pump control apparatus for an automobile, characterized by comprising an electromagnetic clutch (14) which is electrically connected with (4) to control the operation of the water pump (8).