KR101976920B1 - Starting control method for vehicles - Google Patents

Abstract

The present invention relates to a technique for easily and safely performing an acceleration / deceleration control entry / cancellation control. In the present invention, when a manual running mode or a sports running mode is selected in a stopped state of a vehicle, Variable control of the target engine idle speed in accordance with the amount of operation of the shift lever or the paddle shifter when the shift lever or the paddle shifter is operated in the state of entering the accelerated-emission mode; Wherein the control means releases the acceleration oscillation mode when the operation signal of the shift lever and the paddle shifter or the signal output by acceleration of the vehicle satisfies the acceleration / deceleration mode release condition.

Description

[0001] STARTING CONTROL METHOD FOR VEHICLES [0002]

An object of the present invention is to provide a vehicular oscillation control method capable of easily and safely performing an acceleration / deceleration control entrance / exit control.

There is an increasing tendency to apply accelerated oscillation control (maximum oscillation control) to distinguish sports modes from general vehicles as well as high performance vehicles such as racing vehicles.

The acceleration / deceleration control is a technique that uses an ECU and a TCU to control the maximum oscillation performance of the vehicle when the vehicle is in an idle state. The engine is maintained at a high RPM when the vehicle is at a standstill, To improve the performance of the zero-back (0 to 100 kph reaching time) of the vehicle, thereby making the driver feel fun.

In particular, an automatic manual transmission such as a DCT or an AMT is suitable for maximum oscillation control because it does not load the vehicle even if the engine speed is kept high in the D stage because there is no torque converter.

On the other hand, in the conventional case, in order to enter the acceleration / deceleration control, the brake pedal and the accelerator pedal are depressed at the same time, and another control switch is operated together with the brake pedal and the accelerator pedal.

In addition, in order to vary engine RPM, it is also used to vary engine RPM by operating a separately provided autocruise control switch.

However, since the method of entering the accelerating mode requires both the brake pedal and the accelerator pedal to be operated at the same time, there is a problem that it is necessary to use a pair of shoes. In addition, there is a problem that a malfunction may lead to a dangerous driving situation. There is also a problem that can be given.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

KR 10-1694042 B

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems as described above, and it is an object of the present invention to provide a vehicular oscillation control method which can easily and safely carry out the entry and exit control of the acceleration oscillation control.

According to an aspect of the present invention, there is provided an acceleration / deceleration mode control method comprising: an acceleration / deceleration mode entering step of controlling a controller to enter an acceleration / deceleration mode when a manual driving mode or a sports driving mode is selected in a stopped state of the vehicle; An idle speed varying step of variably controlling the target engine idle speed according to an operation cumulative amount of the shift lever or the paddle shifter when the shift lever or the paddle shifter is operated in the state of entering the acceleration oscillation mode; And an accelerating / decelerating mode releasing step of controlling the control unit to release the acceleration / deceleration mode when an operation signal of the shift lever and a paddle shifter or a signal output by acceleration of the vehicle satisfies an accelerating / .

In the step of entering the acceleration / deceleration mode, it is possible to control to enter the acceleration / deceleration mode by determining whether the gradient of the road on which the vehicle has stopped, the brake state, and the clutch temperature satisfy the oscillation control entry condition.

In the acceleration / deceleration mode entering step, when the shift lever is positioned at the S-stage or M-stage, it can be controlled to enter the acceleration / deceleration mode.

In the acceleration / deceleration mode entering step, when the shift lever is positioned at the D-stage, the paddle shifter is controlled to enter the acceleration / deceleration mode.

In the idle speed varying step, when the shift lever or the paddle shifter is manually operated, the operation cumulative amount increases or decreases according to the operation direction, and the engine idle speed can be varied in proportion to the operation cumulative amount.

A brake determining step of determining a brake state after the idle speed varying step; And a creep running limiting step of limiting the creep running when the brake is in an off state.

In the acceleration / deceleration mode releasing step, when the shift lever is changed to a position other than the S-stage or M-stage, the acceleration / deceleration mode can be controlled to be released.

In the acceleration / deceleration mode releasing step, when the APS signal is turned on, the acceleration / deceleration mode can be controlled to be released.

In the acceleration / deceleration mode releasing step, when the upshift from 1st speed to 2nd speed advances, the acceleration / deceleration mode can be controlled to be released.

In the acceleration / deceleration mode releasing step, when the shift lever or the paddle shifter is operated in the negative direction and the state is maintained for a predetermined time or longer, the acceleration / deceleration mode can be controlled to be released.

The present invention solves the above and other problems and provides a driving force control device for an internal combustion engine which is capable of easily entering an accelerating oscillation control and safely implementing the accelerator pedal by entering into an accelerating or decelerating mode only by operating a shift lever or a paddle shifter for changing a traveling mode, And the variable control of the target engine idle speed is realized in accordance with the operation of the provided shift lever or the paddle shifter, thereby making it possible to perform the variable idle speed manipulation more easily and conveniently.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a diagram showing a power train structure of a vehicle equipped with a DCT applicable to the present invention. Fig.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an oscillation control method,
Fig. 3 is a view for explaining another control example of the acceleration / deceleration mode release control in Fig. 2; Fig.
4 is a view for explaining a flow of an acceleration / deceleration mode entry control using a paddle shifter in an oscillation control method according to the present invention.
Fig. 5 is a diagram for explaining another control example of the acceleration / deceleration mode release control in Fig. 4; Fig.
6 is a view for explaining an engine idle speed varying control action when the acceleration oscillation control according to the present invention is applied;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a configuration of a DCT vehicle applicable to the present invention. Briefly describing each constituent element shown in the figure, a coupling-side clutch and a release-side clutch, of two clutches provided in the DCT, are denoted by CL1 and CL2 And the coupling clutch actuator and the release clutch actuator for operating the coupling clutch actuator and the releasing clutch actuator are denoted by the reference numerals CLA1 and CLA2, respectively, and the coupling-side input shaft and the releasing-side input shaft are denoted by reference numerals of INPUT1 and INPUT2, respectively.

However, this is only for convenience of understanding of the present invention, and the coupling side and the releasing side may be changed depending on the clutch which forms the current speed change stage and the clutch for forming the target speed change stage.

In addition, reference numeral 5 denotes an accelerator pedal sensor for measuring an accelerator pedal depression signal, and reference numeral 7 denotes a brake pedal sensor for measuring a brake pedal depression signal.

On the other hand, the vehicular oscillation control method of the present invention can largely be configured to include an acceleration oscillation mode entry step, an idle speed variable step, and an acceleration oscillation mode release step.

Referring to FIGS. 2 and 4, when the user selects the manual driving mode or the sports driving mode in the stopped state of the vehicle, the control unit 9 controls the acceleration / As shown in Fig.

When the shift lever 1 or the paddle shifter 3 is operated in the state in which the accelerator pedal 1 enters the accelerating or decelerating mode in the idle speed varying step, the control unit 9 controls the shift lever 1 or the paddle shifter 3 The target engine idle speed can be variably controlled according to the manual operation integration amount.

When the control signal from the shift lever 1 and the paddle shifter 3 or the signal output by acceleration of the vehicle satisfies the acceleration / deceleration mode release condition, the control unit 9 It is possible to control to release the acceleration oscillation mode.

According to the above-described configuration, since the engine enters the acceleration / deceleration mode only by changing the travel mode, the acceleration / emission control can be easily entered and safely implemented, thereby improving the driving convenience and safety. Further, It is realized in accordance with the operation of the shift lever 1 or the paddle shifter 3, so that the idle speed can be changed and manipulated more easily and conveniently.

On the other hand, in the step of entering the acceleration / deceleration mode, it is possible to control to enter the acceleration / deceleration mode by determining whether the gradient of the road on which the vehicle has stopped, the brake state, and the clutch temperature satisfy the acceleration / deceleration mode entry condition.

For example, as shown in Figs. 2 and 4, when the gradient of the road on which the vehicle is stationary is less than A, the brake is on, and the clutch temperature is less than B, the acceleration / .

As a preferred example of the present invention, in the step of entering the accelerated-oscillation mode, it is possible to control to enter the accelerated-oscillation mode when the shift lever 1 is positioned at the S-stage or M-stage as shown in Figs. 2 and 3 .

That is, the shift lever 1 can be positioned at the S-stage to select the sport running mode, and the manual running mode can be selected at the M-stage.

Here, it is preferable that the S-stage and the M-stage are formed on the shift gate and are selected through the shift lever. However, when the S-stage is not provided in the shift gate, an operation switch capable of selecting a sport running mode is provided, In this case, the following idle speed variable control can be performed through the operation of the paddle shifter 3. [

4 and 5, when the paddle shifter 3 is operated in a state where the shift lever 1 is positioned at the D-stage, the acceleration / You can control to enter.

That is, when the paddle shifter 3 in the (+) or (-) direction at the D-stage is operated once, the manual running mode can be selected and the acceleration / deceleration mode can be entered.

On the other hand, in the idle speed varying step, when the shift lever 1 or the paddle shifter 3 is operated, the operation cumulative amount increases or decreases according to the operation direction, and the engine idle speed is varied in proportion to the operation cumulative amount .

For example, when the shift lever 1 is placed in the S-stage or M-stage to enter the accelerating mode as shown in Figs. 2 and 4, the shift lever 1 is operated in the + The number of manipulations is counted to increase or decrease the manipulation total amount.

Therefore, as shown in FIG. 6, the engine idle speed is variably controlled so that the engine idle speed increases as the total operation amount increases.

In addition, it may further comprise a brake determining step of determining a brake state after the idle speed varying step, and a creep traveling limiting step of limiting creep traveling when the brake is in the off state.

That is, the engine idle speed is raised in a state where the engine enters the accelerated oscillation mode. At this time, when the clutch is slipped to perform the creep running, the temperature of the clutch rapidly increases. Thereby preventing the temperature rise of the clutch and also protecting the clutch.

Meanwhile, in the step of canceling the acceleration / deceleration mode, the acceleration / deceleration mode may be canceled when the mode is switched to another running mode other than the manual running mode or the sports running mode.

For example, as shown in Figs. 2 and 3, when the shift lever 1 is placed in the S-stage or M-stage to enter the accelerating mode, the shift lever 1 is shifted to a position other than the S- If it is changed, the acceleration / deceleration mode can be canceled.

In addition, as shown in FIGS. 2 and 4, when the APS signal is turned on, the acceleration / deceleration mode can be released in the acceleration / deceleration mode canceling step. That is, when it is determined that the driver is willing to start the vehicle by stepping on the accelerator pedal, the acceleration / deceleration mode can be immediately canceled.

As another example of the acceleration / deceleration mode releasing step, the acceleration / deceleration mode can be released when the upshift from 1st speed to 2nd speed advances as shown in Figs. 3 and 5.

That is, after the driver starts the vehicle by stepping on the accelerator pedal, the acceleration / deceleration mode can be controlled to be released at the time point when the shift progresses from the first speed to the second speed by the speed change pattern.

At this time, in the acceleration / deceleration mode according to the present invention, the shift pattern is changed or offset is shifted backward to delay the shifting time point from the first speed to the second speed, so that the vehicle is oscillated more quickly and sportily, .

As another example of the step of releasing the accelerated oscillation mode, when the shift lever 1 or the paddle shifter 3 is operated in the (-) direction to maintain the state for a predetermined time or longer, can do.

That is, when the shift lever 1 is operated to enter the acceleration / deceleration mode as shown in Figs. 2 and 3, the shift lever 1 is maintained in the negative direction for a predetermined time or longer so that the acceleration / 4 and 5, when the paddle shifter 3 is operated to enter the acceleration / deceleration mode, the paddle shifter 3 is maintained in the (-) direction for a predetermined time or longer, .

Hereinafter, the control flow of the oscillation control process according to the present invention will be described.

Fig. 2 and Fig. 3 show a control flow in which the vehicle enters the acceleration / deceleration mode by the operation of the shift lever. When the vehicle is in the stopped state, the gradient of the road on which the vehicle is stopped is less than A, (S10 to S50), it is determined whether the shift lever is in the M-stage or S-stage.

As a result of the determination, if all of these conditions are satisfied, the mode enters the accelerated oscillation mode.

(S60). When the shift lever is operated as a result of the determination, the operating direction and the number of operations of the shift lever are set to be (S70), and variably controls the target engine idle speed according to the calculated total operation amount (S80).

That is, variable idle speed control can be easily and easily performed by varying the idle idle speed by a simple operation of shifting the shift lever.

If it is determined in step S90 that the brake is in operation (S90) and the brake is not operated, the clutch can be restricted (S100) to protect the clutch.

Then, it is determined whether or not the position of the shift lever is changed to another stage other than the S-stage or M-stage (S110). If the shift lever is changed to another stage, (S160), and controls the normal running of the vehicle by restoring the target engine idle speed to normal.

Then, it is determined whether or not the shift lever is maintained in the negative (-) direction for a predetermined time or longer (S120).

However, even if the position of the shift lever is located at the S-stage or M-stage, it can be determined whether the APS signal is turned on as shown in FIG. 2 (S130).

On the other hand, when the APS signal is not turned on, since the accelerating / decelerating mode is still maintained, the operation proceeds to step S60, where it is determined whether or not the shift lever is operated.

If it is determined that the APS signal is not the acceleration / deceleration mode release condition, it is determined whether upshift from 1 to 2 speed is in progress (S120), and the acceleration / deceleration mode is released .

On the other hand, if the upshift to the second speed does not proceed, the accelerating / decelerating mode is still maintained. Then, it is determined whether the APS signal is in the ON state (S150) If not, the control proceeds to step S60 and it is judged whether or not the shift lever is operated.

However, when the APS signal is turned on, the engine speed is increased based on the APS signal. Therefore, the control proceeds to step S80 to control the variable idling speed control.

4 and 5 show a control flow of entering the acceleration / deceleration mode by the operation of the paddle shifter, which will be mainly described with respect to the parts different from those of the embodiment shown in Figs. 2 and 3. Fig.

Referring to the drawings, in a state where the vehicle is stopped, the gradient of the road on which the vehicle is stopped is less than A, the brake is on, and the clutch temperature is less than B, it is determined whether the position of the shift lever is the operation of the paddle shifter at the D- (S10, S20, S30, S40, S50 ').

As a result of the determination, if all of these conditions are satisfied, the mode enters the accelerated oscillation mode.

When the driver enters the accelerated oscillation mode, it is determined whether the driver manipulates the paddle shifter in the (+) direction or the negative (-) direction (S60 '). When the paddle shifter is operated as a result of the determination, (S70), and variably controls the target engine idle speed according to the calculated total operation amount (S80).

That is, variable idle speed control can be easily and easily performed by varying the idle speed of the engine by a simple operation of pulling or pushing the paddle shifter.

Then, it is determined whether the paddle shifter is maintained in the (-) direction for a predetermined period of time or longer (S120 '). In this case, the acceleration / have.

Then, as shown in FIG. 4, it is determined whether or not the APS signal is turned on (S110). When the APS signal is turned on, the acceleration / deceleration mode is released.

On the other hand, when the APS signal is not turned on, since the state still remains in the acceleration / deceleration mode, the process moves to step S60 'and it is possible to determine whether the paddle shifter is operated or not.

If it is determined that the APS signal is not the acceleration / deceleration mode release condition, it is determined whether the upshift is progressing from the first speed to the second speed as shown in FIG. 5 (S140). If the APS signal is not advanced, .

On the other hand, if the upshift to the second speed does not proceed, the accelerating / decelerating mode is still maintained. Then, it is determined whether the APS signal is in the ON state (S150) If it is determined that the paddle shifter has not been operated, the flow advances to step S60 'to determine whether or not the paddle shifter is operated.

However, when the APS signal is turned on, since the engine speed is increased based on the APS signal, the control proceeds to step S80 so as not to perform variable engine idle speed control.

As described above, according to the present invention, by entering the acceleration / deceleration mode only by the operation of the shift lever or the paddle shifter for changing the travel mode, the entry of the acceleration / oscillation control is easily and safely implemented, The variable idle speed control is realized in accordance with the operation of the shift lever or the paddle shifter provided so that the variable idle speed operation can be performed more easily and conveniently.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the specific embodiments set forth herein; rather, .

1: Shift lever 3: Paddle shifter
5: Accelerator pedal sensor 7: Brake pedal sensor
9:

Claims (10)

An acceleration / deceleration mode entering step of controlling the control unit to enter an acceleration / deceleration mode when a manual driving mode or a sports driving mode is selected in a stopped state of the vehicle;
An idle speed varying step of variably controlling the target engine idle speed according to an operation cumulative amount of the shift lever or the paddle shifter when the shift lever or the paddle shifter is operated in the state of entering the acceleration oscillation mode; And
And an acceleration / deceleration mode releasing step of controlling the control unit to release the acceleration / deceleration mode when the operation signal of the shift lever and the paddle shifter or the signal output by acceleration of the vehicle satisfies the acceleration / deceleration mode releasing condition ,
In the accelerated oscillation mode releasing step,
And when the APS signal is turned on, controls to release the acceleration oscillation mode. The method according to claim 1,
In the accelerating mode,
Wherein the controller is configured to determine whether the gradient of the road on which the vehicle is stopped, the braking state, and the clutch temperature satisfy the oscillation control entry condition, and to enter the acceleration oscillation mode. The method according to claim 1,
In the accelerating mode,
Wherein when the shift lever is positioned at the S-stage or M-stage, the control is performed so as to enter the acceleration / deceleration mode. The method according to claim 1,
In the accelerating mode,
And when the paddle shifter is operated in a state where the shift lever is positioned at the D-stage, the control is performed so as to enter the acceleration / deceleration mode. The method according to claim 1,
In the idle speed varying step,
Wherein when the shift lever or the paddle shifter is manually operated, the operation cumulative amount is increased or decreased according to the operation direction, and the engine idle speed is varied in proportion to the operation cumulative amount. The method according to claim 1,
After the idle speed variable step is performed,
A brake determining step of determining a brake state;
And a creep traveling limiting step of restricting creep traveling when the brake is in the off state. The method of claim 3,
In the accelerated oscillation mode releasing step,
And when the shift lever is changed from the S-stage or the M-stage to the outside position, the acceleration / deceleration mode is released. delete An acceleration / deceleration mode entering step of controlling the control unit to enter an acceleration / deceleration mode when a manual driving mode or a sports driving mode is selected in a stopped state of the vehicle;
An idle speed varying step of variably controlling the target engine idle speed according to an operation cumulative amount of the shift lever or the paddle shifter when the shift lever or the paddle shifter is operated in the state of entering the acceleration oscillation mode; And
And an acceleration / deceleration mode releasing step of controlling the control unit to release the acceleration / deceleration mode when the operation signal of the shift lever and the paddle shifter or the signal output by acceleration of the vehicle satisfies the acceleration / deceleration mode releasing condition ,
In the accelerated oscillation mode releasing step,
And shifts the upshift from the first speed to the second speed so that the accelerating / decelerating mode is released. The method according to claim 1,
In the accelerated oscillation mode releasing step,
Wherein when the shift lever or the paddle shifter is operated in the (-) direction to maintain the state for a predetermined time or more, the control unit releases the acceleration oscillation mode.

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