KR20130061316A - Variable cylinder engine system - Google Patents

Variable cylinder engine system Download PDF

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Publication number
KR20130061316A
KR20130061316A KR1020110127556A KR20110127556A KR20130061316A KR 20130061316 A KR20130061316 A KR 20130061316A KR 1020110127556 A KR1020110127556 A KR 1020110127556A KR 20110127556 A KR20110127556 A KR 20110127556A KR 20130061316 A KR20130061316 A KR 20130061316A
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KR
South Korea
Prior art keywords
gear
power
cylinder
gears
engine system
Prior art date
Application number
KR1020110127556A
Other languages
Korean (ko)
Inventor
남성우
조원진
이재연
최대
김건상
Original Assignee
현대자동차주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020110127556A priority Critical patent/KR20130061316A/en
Publication of KR20130061316A publication Critical patent/KR20130061316A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • F02B75/228—Multi-cylinder engines with cylinders in V, fan, or star arrangement with cylinders arranged in parallel banks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/32—Engines characterised by connections between pistons and main shafts and not specific to preceding main groups
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/008—Controlling each cylinder individually
    • F02D41/0082—Controlling each cylinder individually per groups or banks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1848—Number of cylinders twelve

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

The present invention relates to a variable cylinder engine system, wherein the variable cylinder engine system includes: an engine block forming the first, second and third cylinder banks; First, second and third crankshafts for rotating the connecting rods such that the pistons provided in the combustion chambers of the first, second and third cylinder banks linearly reciprocate; A first gear coupled to the first crankshaft and transmitting rotational power to the transmission; Second and third gears respectively coupled to the second and third crankshafts, selectively transmitting rotational power to the first gear to increase rotational power of the first gear; And first and second power cut-off gears that connect or disconnect the first gear and the second gear or the first gear and the third gear so as to transmit power.

Description

Variable cylinder engine system

The present invention relates to a variable cylinder engine system, and more particularly, one of three crank shafts provided in three cylinder banks or a plurality of crank shafts connected to the main power shaft to change the speed and torque of the main power shaft It relates to a variable cylinder engine system for transmitting to.

In general, an automobile is operated using an engine using gasoline or diesel as fuel, and the engine is composed of one cylinder and a piston.

That is, the engine generates power by converting the movement of the piston moving up and down inside the cylinder to the rotational force of the crankshaft.

Recently, however, a multi-cylinder engine using a plurality of unit banks in one block has been used for power enhancement. Such a multi-cylinder engine uses a timing belt to control the explosion timing of each unit engine to achieve stable rotational power.

However, the above-described conventional engine has a structure in which the maximum output is determined according to the number of cylinders, and the actual output is controlled by the accelerator pedal. There is a problem of falling, thereby increasing fuel costs, increasing harmful emissions.

The technical problem to be solved by the present invention for solving the above-mentioned problems is composed of three cylinder banks, and the three cylinder banks to operate independently to drive a part or all of the cylinder banks depending on the driving conditions, power performance To provide a variable cylinder engine that satisfies the.

As a means for achieving the above technical problem, the variable cylinder engine system of the present invention comprises an engine block for forming the first, second and third cylinder bank; First, second and third crankshafts for rotating the connecting rods such that the pistons provided in the combustion chambers of the first, second and third cylinder banks linearly reciprocate; A first gear coupled to the first crankshaft and transmitting rotational power to the transmission; Second and third gears respectively coupled to the second and third crankshafts, selectively transmitting rotational power to the first gear to increase rotational power of the first gear; And first and second power cut-off gears that connect or disconnect the first gear and the second gear or the first gear and the third gear so as to transmit power.

According to the present invention, it consists of three cylinder banks, and the three cylinder banks are operated independently to drive a part or all of the cylinder banks according to the driving situation to satisfy the power performance, thereby reducing fuel costs, It has the effect of reducing harmful emissions.

1 is a plan view showing a variable cylinder engine system according to the present invention.
Figure 2 is a front view showing a variable cylinder engine system according to the present invention.
3 is a view showing a power cut gear of the variable cylinder engine system according to the present invention.
Figure 4 is a flow chart showing the operating state of the variable cylinder engine system according to the present invention.

According to an aspect of the present invention, there is provided a variable cylinder engine system including: an engine block including the first, second, and third cylinder banks; First, second and third crankshafts for rotating the connecting rod such that the pistons provided in the combustion chambers of the first, second and third cylinder banks linearly reciprocate; A first gear coupled to the first crankshaft and transmitting rotational power to the transmission; Second and third gears respectively coupled to the second and third crankshafts, selectively transmitting rotational power to the first gear to increase rotational power of the first gear; And first and second power cut-off gears that connect or disconnect the first gear and the second gear or the first gear and the third gear so as to transmit power.

The first, second and third gears are rotated by the first, second and third motors, respectively.

The first and second power shut-off gears are connected to the first gear and the second gear, or the first gear and the third gear, respectively, while moving according to the acceleration force transmitted to the ECU when the accelerator pedal is operated. Both the second gear and the third gear are connected to increase the rotational power of the first gear.

One side of the second and third crankshafts is provided with first and second sensors that detect the positions of the second and third crankshafts to determine whether they are operated.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

The variable cylinder engine system according to the present invention uses the driving force of each of the first, second and third cylinder banks that are independently driven to increase the rotational power transmitted to the transmission in accordance with the engine RPM to effectively transfer the power to the wheels This is to reduce the fuel cost and harmful exhaust gas emissions.

Such a variable cylinder engine system of the present invention, as shown in Figure 1, the engine block 100, the first, second and third crankshaft 200, 300, 400, the first, second and The third gear 500, 600, 700, and the first and second power blocking gears 800, 900 are included.

The engine block 100 of the present invention forms the first cylinder bank 110 in the center, and forms the second and third cylinder banks 120 and 130 on both sides of the first cylinder bank 110. In addition, a plurality of combustion chambers are formed in the first, second and third cylinder banks 110, and the plurality of combustion chambers are provided such that the piston 10 linearly reciprocates, respectively, and the piston 10 has a connecting rod ( The suction, compression, explosion, and exhaust strokes are performed while the vertical reciprocating motion is carried out by the rotary motion of 20).

The first, second and third crankshafts 200, 300 and 400 of the present invention are connecting rods 20 connected to pistons provided in the combustion chambers of the first, second and third cylinder banks 110. Rotate

Here, the first crankshaft 200 is connected to the main power shaft 50 connected to the flywheel 40 of the transmission 30, so that the rotational power is transmitted to the transmission 30 when the first crankshaft 2090 rotates. do.

The first, second and third gears 500, 600 and 700 of the present invention are coupled to the ends of the first, second and third crankshafts 200, 300 and 400, respectively, The rotational force of the first gear 500 is transmitted to the main power shaft 50 to drive the transmission. The rotational force of the second and third gears 600 and 700 is transmitted to the first gear 500 to further increase the rotational force of the first gear 500 to increase the driving force of the transmission 30.

That is, by connecting one of the second gear 600 or the third gear 700 to the first gear 500 to obtain a double rotational force, and also to connect both the second and third gear (600, 700) In this case, three times the torque can be obtained.

The first and second power blocking gears 800 and 900 of the present invention are capable of power transmission of the first gear 500 and the second gear 600, the first gear 500 and the third gear 700. Connect or disconnect.

That is, as shown in FIG. 3, when the first and second power blocking gears 800 and 900 detect the operating force of the accelerator pedal 60, the ECU 70 senses the operating force of the accelerator pedal 60. Since the first and second power shut-off gears 800 and 900 are not operated, only the rotational force of the first gear 500 is transmitted to the transmission 30, and the first or the second when the operating force of the accelerator pedal 60 is normal. 2 Move the power blocking gears 800 and 900 to connect the first gear 500 and the second gear 600 or the first gear 500 and the third gear 700 to connect the first gear 500. The transmission force is transmitted to the transmission 30 in a state where the rotational force is increased, and when the operating force of the accelerator pedal 60 is strong, both the first gear 500 and the 900 are moved to the first gear 500 and the first gear. Both the second gear 600 and the third gear 700 are connected to the transmission 30 in a state in which the rotational force of the first gear 500 is greatly increased.

The first, second and third gears 500, 600 and 700 are rotated by the first, second and third motors 1000, 1100 and 1200, respectively. As the second and third crankshafts 200, 300 and 400 are rotated, respectively, the first, second and third cylinder banks 110, 120 and 130 are suction, compression, explosion and exhaust strokes, respectively. Do this.

That is, the first, second, and third crankshafts 200, 300, 400 are rotated by the first, second, and third motors 1000, 1100, 1200, respectively. And even if a problem occurs in one or two cylinder banks of the third cylinder banks 110, 120, 130, the rotational power may be transmitted to the first gear 500 through the one or more cylinder banks.

Here, one side of the second and third crankshafts 300 and 400 detects the positions of the second and third crankshafts 300 and 400 to determine whether the first and second sensors 1300 are operated. 1400.

Whether the second and third crankshafts 300 and 400 are detected by the first and second sensors 1300 and 1400 of the present invention is transmitted to the ECU 70 in real time.

Referring to the operating state of the variable cylinder engine system of the present invention having such a configuration as follows.

First, the cylinder block 100 of the variable cylinder engine is operated (S10). In this case, if the cylinder block 100 is not operated, the cylinder block 100 is operated by pressing one of the first cylinder bank operation button, the second cylinder bank operation button, the third cylinder bank operation button, and the automatic button (S20). Then check whether the start 'NO' state (S30), and if the start 'ON' checks whether the RPM transmitted to the ECU 70 due to the operation of the accelerator pedal 60 is 10,000 units (S40).

In this state, the ECU 70 supplies power to the first motor 1000 to be driven, and the piston 10 is rotated while the first crankshaft 200 is rotated by the driving force of the first motor 1000. Power is generated while reciprocating the combustion chamber of the first cylinder bank 110 immediately before, and such power is transmitted to the transmission by the first gear 500 so that the vehicle moves (S50).

In this state, when the driver's required driving force increases (S60), the ECU 70 supplies power to the second motor 1100 to drive the second crankshaft 300 by the driving force of the second motor 1100. While rotating, the piston generates reciprocating power while reciprocating the combustion chamber of the second cylinder bank 120 immediately before, and moves the first power shut-off gear 800 to move the rotational force of the second gear 600 to the first gear. Transmission to the 500 to assist the rotational power, thereby increasing the driving force of the transmission 30 (S70).

Next, when the driver's required power is further increased (S80), the third cylinder bank 130 is started, and the second power shut-off gear 900 is moved together with the rotational force of the second gear 600. Transmission to the gear 500 to assist the rotational power, thereby driving the transmission 30 (S90).

Subsequently, when the driver's required power decreases, starting of the third cylinder bank 130 and the second cylinder bank 120 are sequentially stopped, thereby reducing the combustion consumption.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

100: cylinder block 110: first cylinder bank
120: second cylinder bank 130: third cylinder bank
200: first crankshaft 300: second crankshaft
400: third crankshaft 500: first gear
600: second gear 700: third gear
800: first power cut gear 900: second power cut gear
1000: first motor 1100: second motor
1200: third motor

Claims (4)

An engine block forming first, second and third cylinder banks;
First, second and third crankshafts for rotating the connecting rods such that the pistons provided in the combustion chambers of the first, second and third cylinder banks linearly reciprocate;
A first gear coupled to the first crankshaft and transmitting rotational power to the transmission;
Second and third gears respectively coupled to the second and third crankshafts, selectively transmitting rotational power to the first gear to increase rotational power of the first gear;
And a first and second power cut-off gears that connect or disconnect the first gear and the second gear or the first gear and the third gear so as to transmit power. The method according to claim 1,
And the first, second and third gears are rotated by the first, second and third motors, respectively. The method according to claim 1,
The first and second power shut-off gears are connected to the first gear and the second gear, or the first gear and the third gear, respectively, while moving according to the acceleration force transmitted to the ECU when the accelerator pedal is operated. A variable cylinder engine system for connecting both the second gear and the third gear to increase the rotational power of the first gear. The method according to claim 1,
One side of the second and third crankshaft variable cylinder engine system having a first and a second sensor for checking the operation by detecting the position of the second and third crankshaft.
KR1020110127556A 2011-12-01 2011-12-01 Variable cylinder engine system KR20130061316A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110127556A KR20130061316A (en) 2011-12-01 2011-12-01 Variable cylinder engine system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110127556A KR20130061316A (en) 2011-12-01 2011-12-01 Variable cylinder engine system

Publications (1)

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KR20130061316A true KR20130061316A (en) 2013-06-11

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KR1020110127556A KR20130061316A (en) 2011-12-01 2011-12-01 Variable cylinder engine system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160065663A (en) 2014-12-01 2016-06-09 현대자동차주식회사 Controlling method for cylinder de-activation engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160065663A (en) 2014-12-01 2016-06-09 현대자동차주식회사 Controlling method for cylinder de-activation engine

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