KR102108799B1 - Method for Variable Charge Motion Operation Maintenance, Variable Charge Motion System thereof - Google Patents

Abstract

The variable charge motion operation maintenance method of the present invention, when the VCM motor control is performed by the controller when the engine is started, the VCM motor voltage detection value of the VCM motor is checked, and some ranges of the range of the VCM motor voltage detection value are VCM. After setting the motor condition judgment voltage detection value to judge the malfunction of the VCM motor due to foreign material jamming, the VCM motor condition judgment voltage detection value is stored, and when no foreign substance is diagnosed, the ON / OFF control of the VCM motor controls engine rotation VCM NORMAL mode, which does not limit the number, is executed, while VCM LIMPHOME mode, which controls on and off (ON, OFF) of the VCM motor when diagnosing foreign substances, is executed, so that the VCM motor sensor 1-1 is operated. In case of operating angle of indirect VCM valve 5 caused by foreign matter jamming or carbon stacking of fuel under the condition of recognition, engine knocking, starting off, and yen are maintained by maintaining the minimum engine intake. Characterized the like damage is prevented.

Description

Method for variable charge motion operation and variable charge motion system {Method for Variable Charge Motion Operation Maintenance, Variable Charge Motion System thereof}

The present invention relates to a variable charge motion system (Variable Charge Motion System), in particular, the engine knocking (Knocking), start off, engine breakage by maintaining a minimum engine intake even when the VCM valve (VCM Valve) malfunction due to foreign matter It relates to a variable charge motion operation maintenance method and a variable charge motion system that can prevent the back.

In recent years, the strengthened environmental regulations require more improved performance for various fuel efficiency improving devices or methods applied to vehicles, and in particular, an increase in fuel costs further requires the need.

Satisfying these conditions can be realized by further improving the combustion characteristics of the engine, and with this technology, variable charge (Variable Charge) that improves the mixing of air and fuel in the cylinder by generating a tumble in the intake air Motion, hereafter VCM).

The VCM is a VCM valve (VCM valve) provided in a suction air path of a VCM motor (Variable Charge Motion Motor), an intake manifold (hereinafter referred to as an intake manifold), and a link link connecting a VCM motor and a VCM valve (Linkage Link) ), ECU (Engine Control Unit or Electronic Control Unit) to control the VCM motor. Hereinafter, the VCM is referred to as a link type VCM.

 When the link type VCM is operated, the VCM motor is on / off controlled by the ECU that has detected the change in the engine intake amount (engine mapping variable) in advance, and the VCM valve is turned on / off of the VCM motor received through the link link. It generates a movement associated with the off operation, and the intake air flow is converted into a tumble flow caused by the movement of the VCM valve, passing through the in-manifold.

Therefore, the operation of the link-type VCM generates a tumble flow of intake air, so that the mixing of air and fuel in the cylinder is better, so that combustion characteristics can be improved.

Domestic Patent Publication 10-2009-0063912 (June 18, 2009)

However, the link type VCM has a possibility of malfunction due to inflow or sticking of foreign matter by placing the link link with the VCM motor outside the in-manifold, and the possibility of malfunction of the link type VCM is the engine load. It acts as a cause that makes it difficult to control the engine intake amount of the ECU, which must be done according to the conditions.

In particular, in the link-type VCM, the VCM motor detected by the ECU is caused by the intrusion of foreign matter or the carbon stacking of fuel, and the recognition of the VCM valve angle of the ECU is performed indirectly using the operating angle of the VCM motor. The operating angle of can't represent the actual angle of the VCM valve, which makes it more difficult to control the engine intake amount of the ECU, and may develop into engine knocking, engine shutdown, engine damage, etc. in severe cases.

These disadvantages can be solved by installing a separate position sensor on the VCM valve, and the ECU directly recognizes the operating angle of the VCM valve as the position sensor of the VCM valve, but the solution method through the addition of the position sensor has a narrow engine layout. In (layout), it is possible to not only bring difficulty in setting the mounting position, but also reduce the effect of applying VCM due to cost increase.

Accordingly, the present invention in consideration of the above-mentioned points, the engine is knocked by maintaining the minimum engine intake even when placed under the influence of carbon deposits of foreign substances or fuel in the condition of recognition of the indirect VCM valve operation angle by the VCM motor sensor. An object of the present invention is to provide a variable charge motion operation maintenance method, a variable charge motion controller, and a variable charge motion system that prevents engine shutdown, engine damage, and the like.

The variable charge motion operation maintenance method of the present invention for achieving the above object is (A) VCM motor control by the controller when the engine is started (Start), VCM motor voltage detection value of the VCM motor is checked VCM Control start mode; (B) a part of the range of the VCM motor voltage detection value is set to the VCM motor condition determination voltage detection value, and the VCM motor condition determination voltage detection value determines the operation abnormality of the VCM motor due to foreign matter jamming, and the VCM condition determination mode for storing the VCM motor condition determination voltage detection value; (C) VCM NORMAL mode in which ON / OFF control of the VCM motor does not limit the engine speed is executed when no foreign matter is detected by the VCM motor condition determination voltage detection value, whereas the VCM motor condition A VCM control execution mode in which a VCM LIMPHOME mode in which the ON and OFF control of the VCM motor limits the engine speed when the foreign matter is diagnosed by the determination voltage detection value; It is characterized by consisting of.

In the VCM control start mode, the VCM motor voltage detection value is obtained by a VCM motor sensor built into the VCM motor.

In the VCM condition determination mode, the VCM motor condition determination voltage detection value is the operating range voltage range excluding the voltage detection value when the VCM motor is OFF and the maximum voltage detection value when it is ON. The operating region voltage range is divided into first, second, and third stages, and the magnitude of the VCM motor condition determination voltage detection value in the second stage is greater than the magnitude of the VCM motor condition determination voltage detection value in the first stage, and the third stage. The magnitude of the VCM motor condition determination voltage detection value of is set larger than the magnitude of the VCM motor condition determination voltage detection value of the second step. In the VCM condition determination mode, the stored value of the VCM motor condition determination voltage detection value is applied to the existing VCM motor voltage detection value of the VCM motor at engine start or VCM motor control.

When the VCM NORMAL mode is executed in the VCM control execution mode, on and off (ON, OFF) of the VCM motor is controlled based on an engine speed of 4000 rpm. The ON of the VCM motor is made at an engine speed of 4000 rpm or higher to open the intake manifold's intake passage (OPEN), and the OFF of the VCM motor is at an engine speed of 4000 rpm or lower. Closing the intake passage (CLOSE), the intake air passing through the intake passage forms a tumble. The ON control of the VCM motor is variable in the degree of opening of the intake passage according to the operating conditions of the engine.

When the VCM LIMPHOME mode is executed in the VCM control execution mode, on and off (ON, OFF) of the VCM motor is controlled based on an engine speed of 2000 rpm. The ON of the VCM motor is made at an engine speed of 2000 rpm or less to open the intake manifold intake passage (OPEN), and the OFF of the VCM motor is at an engine speed of 2000 rpm or more to make the intake manifold. Closing the intake passage (CLOSE), the intake air passing through the intake passage forms a tumble. The opening of the intake passage when the VCM motor is ON is such that it can supply the intake air flow rate set as a modeling value at the default position to the engine.

In order to achieve the above object, the variable charge motion system of the present invention includes a VCM motor incorporating a VCM motor sensor, a linkage link operated by the rotational force of the VCM motor, a valve arm connected to the linkage link and an intake passage of the intake manifold A VCM valve made of a flap that changes the area, and a controller that controls on and off (ON, OFF) of the VCM motor, is included in the controller to trap foreign matter as the voltage detection value of the VCM motor detected by the VCM motor sensor. VCM motor condition determination unit for determining the operation failure of the VCM valve, and storing the voltage detection value in a memory; VCM NORMAL mode where the ON / OFF control of the VCM motor does not limit the engine speed when no foreign matter is diagnosed, and ON / OFF control of the VCM motor when the foreign matter is diagnosed is the engine speed. VCM mode processing unit to classify the VCM LIMPHOME mode to limit the; It is characterized in that it includes an interface for transmitting the voltage detection value of the VCM motor sensor to the VCM motor condition determination unit and transmitting a VCM motor ON / OFF signal to the VCM motor of the VCM mode processing unit. .

The VCM (Variable Charge Motion) system of the present invention maintains engine operation with minimal engine intake even when placed under the influence of foreign matter jamming or carbon stacking of fuel, thereby knocking engine off due to malfunction of VCM, starting off, It is effective in preventing engine damage and the like.

In addition, the present invention maintains the indirect method by the VCM motor sensor for the recognition of the VCM valve operating angle for controlling the engine intake amount, thereby setting the mounting position by a narrow engine layout when applying the direct method by the VCM valve position sensor. There are no problems such as difficulty in reducing VCM application effect due to difficulty and cost increase, and in particular, performance improvement of the VCM (Variable Charge Motion) system can be achieved without any hardware additions or mechanical design changes.

In addition, the present invention has no forced driving of the flap valve under low load conditions (deceleration, no load, EGR cut area, ignition off), normal driving conditions, deceleration conditions, and idle conditions. By preventing fixation of the flap valve and foreign matters, it is possible to have an expandability that can be easily applied to the EGR system to which a flap valve such as a VCM valve is applied without design changes.

1 is a flow chart of a VCM (Variable Charge Motion) operation maintenance method according to the present invention, Figure 2 is an example of the operation angle of the VCM valve (VCM Valve) to determine the foreign matter stuck in the VCM operation maintenance method according to the present invention, 3 is a VCM NORMAL mode operating state when there is no foreign matter jamming in the VCM operating maintenance method according to the present invention, Figure 4 is LIMPHOME entering the DEFAULT position of the VCM when foreign matter jamming in the VCM operating maintenance method according to the present invention Mode operation state, Figure 5 is a configuration of a variable charge motion controller and a variable charge motion system applying the same to implement the VCM operation maintenance method according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying exemplary drawings, and as such examples, those skilled in the art to which the present invention pertains may be implemented in various different forms, and thus are described herein It is not limited to the embodiment.

1 shows a flow chart of a VCM operation maintenance method according to this embodiment. VCM operation maintenance method may be performed by a VCM dedicated controller or an engine control unit (Engine Control Unit or Electronic Control Unit).

As shown in the figure, when the VCM motor control method of S10 is started between the engine start (S1) and the engine stop (Stop) of S1, the VCM operation maintenance method is diagnosed with foreign matter by determining the VCM motor condition of S20, Enters the VCM NORMAL mode, which is executed when the foreign matter of S30 is diagnosed, or enters the VCM LIMPHOME mode, which is executed when the foreign matter of S40 is diagnosed.

Specifically, the determination of the VCM motor condition in S20 is made of the output voltage of the VCM motor sensor (hereinafter referred to as the VCM sensor voltage). To this end, 1.87V <VCM sensor voltage <3.03V is applied, so that the opening angle of the VCM valve is divided into at least 5 steps. In particular, 1.87V <VCM sensor voltage <3.03V is the voltage detection value excluding the voltage detection value when the VCM motor is OFF and the maximum voltage detection value when it is ON, which is the voltage detection value of the VCM motor condition determination. Is defined.

A variable charge motion system (hereinafter referred to as a VCM system) to which the VCM motor condition determination is applied is illustrated in FIG. 2. As shown, the VCM system is a VCM motor (Variable Charge Motion Motor) (1), a VCM motor sensor (1-1) embedded in the VCM motor (1), and a link link operated by the rotational force of the VCM motor (1) ( Linkage Link (3), a valve arm (5B) connected to the linkage link (3) and a flap (5A) that changes the intake passage area of the Intake Manifold (hereinafter referred to as the In Manifold) 20 It is composed of a VCM Valve (5) made of). The controller 10 for controlling the VCM motor 1 is a VCM dedicated controller or an engine control unit (Engine Control Unit or Electronic Control Unit).

In particular, the flap 5A of the VCM valve 5 has a maximum opening angle of 117 °, and this is set to a 5-stage opening angle position (P-1, P-2, P-3, P-4, P-5). To distinguish. For example, P-1 is a closed state in which the intake passage 20-1 of the manifold 20 is kept at a minimum when the VCM valve 5 is OFF, in this case, the VCM motor sensor ( The voltage of the VCM sensor in 1-1) is 0.50V ± 0.2V. P-2 is an open (OPEN) state (a) in which the intake passage 20-1 of the in-manifold 20 opens 39.15 degrees compared to P-1 when the VCM valve 5 is ON, in this case VCM The VCM sensor voltage of the motor sensor 1-1 is 1.87V ± 0.2V. P-3 is an open (OPEN) state in which the intake passage 20-1 of the manifold 20 opens 72.20˚ compared to P-1 (33.05˚ compared to P-2) when the VCM valve 5 is ON. (b), and in this case, the VCM sensor voltage of the VCM motor sensor 1-1 is 3.03V ± 0.2V. P-4 is an open (OPEN) state where the intake passage (20-1) of the manifold (20) opens 74.40˚ (35.25˚ compared to P-2) compared to P-1 when the VCM valve (5) is ON. (c), in this case, the VCM sensor voltage of the VCM motor sensor 1-1 is 3.10V ± 0.2V. In P-5, when the VCM valve (5) is ON, the intake passage (20-1) of the in-manifold 20 is 117˚ compared to P-1 (44.8˚ compared to P-3, 42.6˚ compared to P-4) ) Open is the maximum open state (d), in which case the VCM sensor voltage of the VCM motor sensor 1-1 is 4.60 V ± 0.2 V.

Therefore, P_3 to P-2 is applied to the opening angle of the flap 5A applied to the determination of the VCM motor condition in S20, and 1.87V to 3.03V is applied to the VCM sensor voltage. As an example, the controller 10 monitors the voltage of the VCM motor sensor 1-1. If the condition of 1.87V <VCM sensor voltage <3.03V is satisfied, the controller enters the VCM NORMAL mode of S30, while 1.87V <VCM sensor If the condition of voltage <3.03V is not satisfied, V40 LIMPHOME mode of S40 is entered.

In particular, when determining the VCM motor condition of S20, the results that were applied to the ON / OFF of the VCM valve 5 under the VCM sensor voltage conditions of 1.87V to 3.03V are the results of the VCM motor sensor 1-1. Save it as the detected voltage value, and refer to the determination of VCM motor conditions every time the engine is started or the VCM system is operated. The memory is bound to the controller 10.

Referring back to FIG. 1, specifically, the VCM NORMAL mode, which is executed when no foreign matter is detected in S30, is turned on or off (OFF) of the VCM motor 1 when the VCM system is operated as in S31, based on 4000 rpm of the engine. It is set, and then, as in S32, during normal driving, the VCM motor 1 is controlled according to the operating conditions of the engine of ON / OFF.

This VCM NORMAL mode is illustrated through FIG. 3. As illustrated, when the engine speed is 4000 rpm or less, the controller 10 turns the VCM motor 1 off, and the VCM motor 1 is turned off to turn the VCM valve through the linkage link (3). The flap 5A of 5) converts the intake passage 20-1 of the phosphorus manifold 20 to the CLOSE state. Then, the intake passage 20-1 is maintained at a minimum area due to the P_1 position of the flap 5A, so that the intake air passing through the intake passage 20-1 is supplied to the engine while forming a tumble. On the other hand, when the engine speed is 4000 rpm or more, the controller 10 turns on the VCM motor 1 and turns on the VCM motor 1, so that the VCM valve 5 via the link 3 is interposed. The flap of 5A converts the intake passage 20-1 of the phosphorus manifold 20 to the OPEN state. Then, the flap 5A is increased from P_2 to P_5, thereby increasing the flow rate of the intake air passing through the intake passage 20-1. At this time, the change of the position of P_5 in P_2 is changed according to the operating condition of the engine in the normal driving state.

Referring back to FIG. 1, specifically, the VCM LIMPHOME mode executed when diagnosing foreign substances in S40 is changed to the default position (DEFAULT POSITION) of the VCM valve 5 by entering the VCM LIMPHOME mode of S41, and then inhaled as in S42. The air volume is controlled by the modeling value at the default position, so the engine speed is limited to 2000 rpm or less. In particular, OFF of the VCM valve 5 (CLOSE of the flap 5A is when the VCM sensor voltage is greater than 2.0V and less than 3.03V, while ON of the VCM valve 5) The open of the flap 5A is divided into when the VCM sensor voltage is greater than 1.87V and less than 2.7V.

 This VCM LIMPHOME mode is illustrated through FIG. 4. As shown, the controller 10 closes the intake passage 20-1 of the manifold 20 in which the flap 5A of the VCM valve 5 is in by turning the VCM motor 1 OFF. ), Through which the intake air passing through the intake passage (20-1) is supplied to the engine while forming a tumble (Tumble). Due to this, the engine speed is limited to 2000 rpm or less. This is the case when the VCM sensor voltage is greater than 2.0V and less than 3.03V.

On the other hand, the controller 10 opens the intake passage 20-1 of the manifold 20 in which the flap 5A of the VCM valve 5 is opened by turning the VCM motor 1 ON. By switching, the intake air flow rate passing through the intake passage 20-1 is supplied to the engine in a controlled state with a modeling value at the default position. Due to this, the engine speed is limited to 2000 rpm or less. This is the case where the VCM sensor voltage is greater than 1.87 V and less than 2.7 V. As an example, the modeling value at the default position may be applied when the flaps 5A of the VCM valve 5 are P_2, P_3, P_4, but a new value may be designated between P_1 and P_5.

Meanwhile, FIG. 5 shows a configuration of a variable charge motion controller and a variable charge motion system to which the VCM operation maintenance method according to the present embodiment is executed.

As shown, the VCM system includes a controller 10 for controlling the VCM motor 1, and the controller 10 includes a VCM motor condition determination unit for determining VCM motor conditions and performing VCM NORMAL mode and VCM LIMPHOME mode. (10-1), VCM mode processing unit 10-2, the interface 10-3 is further included.

Specifically, the VCM motor condition determining unit 10-1 forms an electrical circuit with the VCM motor 1 and the VCM motor sensor 1-1 built in the VCM motor 1, and the VCM motor sensor 1- It is determined whether foreign substances are stuck in the VCM valve 5 with the voltage value detected in 1). To this end, in the VCM motor condition determination unit 10-1, the voltage detection value of the VCM motor sensor 1-1 is 0.50V ± 0.2V (P_1 in FIG. 2), 1.87V ± 0.2V (P_2 in FIG. 2). ), 3.03V ± 0.2V (P_3 in FIG. 2), 3.10V ± 0.2V (P_4 in FIG. 2), and 4.60V ± 0.2V (P_5 in FIG. 2). Particularly, in the VCM motor condition determination unit 10-1, the VCM motor sensors (1-) respectively applied to ON / OFF of the VCM valve 5 under the VCM sensor voltage conditions of 1.87V to 3.03V. The VCM sensor voltage, which is the detected voltage value of 1), is stored in the memory. The memory storage value of the VCM motor condition determination unit 10-1 is used to determine the VCM motor condition each time the engine is started or the VCM system is operated. However, the memory may be included in the controller 10 as a separate memory.

In the VCM mode processing unit 10-2, ON / OFF of the VCM motor 1 for performing the VCM NORMAL mode and the VCM LIMPHOME mode is determined. OFF of the VCM motor 1 is CLOSE of the VCM valve 5, and ON of the VCM motor 1 means OPEN of the VCM valve 5. Therefore, the VCM mode processing unit 10-2 has a tumble formation of intake air passing through the intake passage 20-1 of the manifold 20 having the opening angle of the flap 5A of the VCM valve 5 The P-5 position (VCM motor (which opens the intake passage 20-1) of the manifold 20 at the maximum opening angle of 117 ° from the possible P-1 position (OFF of the VCM motor 1) 1) ON, and the P-1 position and the P-5 position are P_2 position (39.15˚ open compared to the opening angle of P-1), P-3 position (opening angle of P-2) Contrast 33.05˚), P-4 position (35.25˚ compared to the opening angle of P-2). Through this, the VCM mode processing unit 10-2 has an intake passage 20-1 of the in-manifold 20 at each stage of P-1, P-2, P-3, P-4, P-5. VCM NORMAL mode controlled by the position (S30, S31, S32 in FIG. 1) is performed, and the intake passage 20-1 of the in-manifold 20 is P-1, P-2 (or P-3 or P -4) VCM LIMPHOME mode (S40, S41, S42 of FIG. 1) controlled only by the step-by-step position is performed.

The interface 10-3 transmits the voltage detection value of the VCM motor sensor 1-1 to the VCM motor condition determination unit 10-1, and turns on the VCM motor of the VCM mode processing unit 10-2. The / OFF signal is transmitted to the VCM motor (1).

Therefore, the controller 10 may be applied to a VCM motor condition determination unit 10-1, a VCM mode processing unit 10-2, an interface 10-3, a VCM dedicated controller having a memory, but an engine control device (Engine It is preferable to use components of the control unit or electronic control unit (ECU).

In addition, the VCM system connects the VCM motor 1 and the valve arm 5B of the VCM valve 5 to each other with a Linkage Link 3, and the valve arm 5B is an in-manifold ( It is connected to the flap 5A installed in the intake passage 20-1 of 20).

Therefore, the VCM system is composed of a link type VCM and a dedicated VCM controller, or a link type VCM and an ECU. In particular, by applying the ECU, the cost burden is minimized and there is no engine room layout change.

As described above, in the method for maintaining the variable charge motion according to the present embodiment, when the VCM motor is controlled by the controller when the engine starts, the VCM motor voltage detection value of the VCM motor is checked, and the VCM motor voltage detection value Set some ranges of the VCM motor condition judgment voltage detection value to determine the operation error of the VCM motor due to foreign material jamming, and then store the VCM motor condition judgment voltage detection value, and turn on or off the VCM motor when no foreign matter is diagnosed. , OFF) VCM NORMAL mode in which control does not limit the engine speed is executed, whereas VCM LIMPHOME mode in which VCM motor ON / OFF control limits the engine speed is executed when diagnosing foreign substances. The engine is maintained by maintaining the minimum engine intake even when placed under the influence of foreign matter jamming or carbon deposition of fuel under the condition of recognition of the operating angle of the indirect VCM valve 5 by the sensor 1-1. The King (Knocking), starting off, engine failure, etc. is prevented.

1: VCM motor (Variable Charge Motion Motor)
1-1: VCM motor sensor
3: Linkage Link 5: VCM Valve
5A: Flap 5B: Valve arm
10: controller 10-1: VCM motor condition determination unit
10-2: VCM mode processing unit
10-3: Interface
20: Intake Manifold
20-1: Intake passage

Claims (13)

(A) VCM control start mode in which the VCM motor voltage detection value of the VCM motor is checked when VCM motor control is performed by a controller at engine start;
(B) a part of the range of the VCM motor voltage detection value is set to the VCM motor condition determination voltage detection value, and the VCM motor condition determination voltage detection value determines the operation abnormality of the VCM motor due to foreign matter jamming, and the VCM condition determination mode for storing the VCM motor condition determination voltage detection value;
(C) VCM NORMAL mode in which ON / OFF control of the VCM motor does not limit the engine speed is executed when no foreign matter is detected by the VCM motor condition determination voltage detection value, whereas the VCM motor condition VCM control execution mode in which the VCM LIMPHOME mode in which the ON / OFF control of the VCM motor limits the engine speed when the foreign matter is diagnosed by the determined voltage detection value is executed.
In the VCM condition determination mode, the VCM motor condition determination voltage detection value is the operating range voltage range excluding the voltage detection value when the VCM motor is OFF and the maximum voltage detection value when it is ON,
For the application of the operating range voltage range, the voltage detection value changed between the minimum and maximum open of the VCM valve for the intake passage of the in-manifold is monitored by the VCM sensor voltage of the VCM motor sensor by the controller.
Method of maintaining a variable charge motion operation, characterized in that.
The method according to claim 1, wherein in the VCM control start mode, the VCM motor voltage detection value is obtained by a VCM motor sensor embedded in the VCM motor.
delete The method according to claim 1, wherein the operating region voltage range is divided into first, second, and third stages, and the magnitude of the VCM motor condition determination voltage detection value of the second stage is greater than that of the first stage VCM motor condition determination voltage detection value A method of maintaining a variable charge motion, characterized in that the size of the VCM motor condition determination voltage detection value of the third step is set larger than the size of the VCM motor condition determination voltage detection value of the second stage.
The method according to claim 1, wherein in the VCM condition determination mode, the stored value of the VCM motor condition determination voltage detection value is applied as an existing VCM motor voltage detection value of the VCM motor at engine start or VCM motor control. How to maintain variable charge motion.
The method according to claim 1, When the VCM NORMAL mode is executed in the VCM control execution mode, the on and off (ON, OFF) of the VCM motor is controlled based on the engine speed of 4000rpm variable charge motion operation maintenance. Way.
The method according to claim 6, ON (ON) of the VCM motor is made at an engine speed of 4000 rpm or more to open the intake passage of the intake manifold, and OFF of the VCM motor is made at an engine speed of 4000 rpm or less. Variable closing motion operation maintenance method characterized in that the intake passage of the fold closes the intake air passing through the intake passage to form a tumble.
The method according to claim 7, The ON control of the VCM motor is a variable charge motion operation maintenance method characterized in that the opening degree of the intake passage is variable according to the operating conditions of the engine.
The method according to claim 1, When the VCM LIMPHOME mode is executed in the VCM control execution mode, the ON and OFF (ON, OFF) of the VCM motor is controlled based on the engine speed 2000rpm variable charge motion operation maintenance. Way.
The intake manifold of claim 9, wherein the ON of the VCM motor is made at an engine speed of 2000 rpm or less to open the intake passage of the intake manifold, and the OFF of the VCM motor is made at an engine speed of 2000 rpm or more. Variable closing motion operation maintenance method characterized in that the intake passage of the fold closes the intake air passing through the intake passage to form a tumble.
The method according to claim 10, wherein the opening of the intake passage when the VCM motor is ON is a degree capable of supplying the intake air flow rate set to the modeling value at the default position to the engine.
VCM (Variable Charge Motion) consisting of a VCM motor with a built-in VCM motor sensor, a linkage operated by the rotational force of the VCM motor, a VCM valve consisting of a valve arm connected to the linkage link and a flap that changes the intake passage area of the intake manifold. );
A VCM motor condition determination unit and a VCM mode processing unit and an interface in which the VCM control start mode, VCM condition determination mode, and VCM control execution mode according to any one of claims 1 and 2 and 4 to 11 are executed, and the VCM motor On, off (ON, OFF) controller for controlling;
Variable charge motion system, characterized in that included. The variable charge motion system according to claim 12, wherein the controller is an ECU (Engine Control Unit).

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