KR102450778B1 - Shift control methods and devices when driving on both feet of an automatic transmission vehicle - Google Patents

Abstract

Disclosed are a method and an apparatus for controlling shifting in two-legged driving of an automatic transmission vehicle in which a brake pedal is operated with a left foot and a shift is controlled during a two-footed driving operation in which a right foot operates an accelerator pedal. According to the present invention, a shift control method for two-wheeled driving of an automatic transmission vehicle includes: a vehicle speed monitoring step of determining whether a vehicle speed has reached a reference vehicle speed set for changing a shift reference point; Two-leg operation determination step of determining whether the brake pedal is being operated simultaneously Accordingly, the main idea is to include a shift pattern correction step of upwardly adjusting the shift reference point for each stage (moving the shift reference point toward the high speed side) and a shift control step of executing shift control according to the shift pattern in which the shift reference point is upwardly adjusted.

Description

Shift control methods and devices when driving on both feet of an automatic transmission vehicle

The present invention relates to a shift control method of an automatic transmission vehicle, and in particular, a method and apparatus for controlling a shift in two-legged driving of an automatic transmission vehicle, in which a brake pedal is operated with the left foot and an accelerator pedal is operated with the right foot, so-called shift control during two-wheeled driving is about

Unlike a manual transmission vehicle, in an automatic transmission vehicle without a clutch pedal, it is common to operate the brake pedal and accelerator pedal with one right foot. More specifically, the vehicle accelerates or decelerates by operating only one of the brake pedal and the accelerator pedal with the right foot while driving the vehicle.

Many drivers operate one-legged driving to accelerate or decelerate the vehicle by operating only one of the brake pedal and the accelerator pedal with their right foot. Operating the brake pedal with the left foot and the accelerator pedal with the right foot is called 'two-footed driving'.

According to one statistic, it is known that 1 or 2 out of 10 domestic drivers drive with both legs. In the case of two-legged driving, the main reason is that the brake response time is faster than when driving with one leg in case of an emergency, and there is no confusion between the accelerator pedal and the brake pedal when using both feet.

However, in the case of two-legged driving, since the left foot is always placed on the brake pedal, there is a risk that the vehicle speed may be decelerated between shifts, and there is a risk that the shifting feeling may be deteriorated according to the deceleration of the vehicle speed. This is because the brake performance is demonstrated if even a slight force is applied to the left foot placed on the brake pedal unknowingly.

Accordingly, there is a need to develop a technology for shift control that can realize a shift feeling suitable for the driving characteristics of a two-footed driver who drives with his left foot on the brake pedal at all times.

Korea Registered Utility Model No. 20-0274952 (Registration Date 2002. 04. 29)

The technical problem to be solved by the present invention is to prevent a decrease in shift feeling due to a decrease in vehicle speed between shifts caused by placing a left foot on a brake pedal when driving with both legs, and to control shifting when driving an automatic transmission vehicle that can secure a smooth shift feeling We want to provide a way.

According to one aspect of the present invention as a means of solving the problem,

(a) a vehicle speed monitoring step of determining whether the vehicle speed reaches a reference vehicle speed set for changing a shift reference point;

(b) determining whether the accelerator pedal and the brake pedal are being operated simultaneously when the vehicle speed reaches the reference vehicle speed;

(c) an average pressure calculation step of calculating an average value of the pressure applied to the brake pedal when it is determined that the two-legged driving is performed;

(d) a shift pattern correction step of upwardly adjusting the shift reference point for each stage (moving the shift reference point toward the high speed side) by applying a corresponding compensation value according to the average value of the calculated pressure; and

(e) a shift control step of executing shift control according to a shift pattern in which a shift reference point is adjusted upward.

Preferably, in step (a), the reference vehicle speed may be an up-shift reference vehicle speed on a general shift pattern map, which is a reference for up-shifting the shift stage from the first gear to the second gear while driving the vehicle.

Also, in step (b), if the output of the accelerator position sensor (APS) that detects the pedal amount of the accelerator pedal is equal to or greater than the set value, and the brake pressure calculated in real time from the output of the brake oil pressure sensor is equal to or greater than the set pressure, two-wheeled operation is performed. can judge

In addition, the average value in step (c) may be an average value of the brake pressure calculated in real time from the output of the brake oil pressure sensor during a time in which the brake pedal and the accelerator pedal are simultaneously operated regardless of the will to decelerate.

In addition, the average value of the pressure applied to the brake pedal is calculated in real time only when two-foot operation is detected at the time when each gear shift is required, and a corresponding compensation value is applied according to the calculated average value (average value of the brake pressure) to determine the shift reference point. can be adjusted upwards.

Also, when two-legged driving is released while shift control is being executed according to the shift pattern in which the shift reference point is adjusted upward in step (e), the general shift pattern may be immediately applied to perform shift control.

In addition, the compensation value for upwardly adjusting the shift reference point increases or decreases in proportion to the average value of the pressure, and a weight is given to the compensation value toward an upper stage so that the compensation width of the shift reference point increases. .

According to another aspect of the present invention as a means of solving the problem,

a vehicle speed detector configured to detect a vehicle speed;

a pedal amount detecting unit detecting a pedal amount of the accelerator pedal;

a brake pressure detection unit that detects a brake pressure; and

and a control unit for controlling the shift of the automatic transmission based on the signal output by the vehicle speed detecting unit, the pedal amount detecting unit, and the pressure detecting unit;

The control unit is

Based on the signals output by the pedal amount detection unit and the pressure detection unit, it is determined whether two-legged driving is performed and the shift pattern is corrected,

Provided is a shift control device for two-wheeled driving of an automatic transmission vehicle that controls shifting of the automatic transmission by applying a corrected shift pattern during two-wheeled driving.

Preferably, the control unit includes: a two-legged driving determining unit that determines whether the accelerator pedal and the brake pedal are being operated at the same time when the current vehicle speed determined from the output of the vehicle speed detecting unit reaches a reference vehicle speed; An average pressure calculator that calculates the average value of the pressure, a shift pattern corrector that upwardly adjusts the shift reference point for each stage (moving the shift reference point to the high speed side) by applying a corresponding compensation value according to the average value of the calculated pressure, and the shift reference point The shift control unit may be configured to control the shift according to the upwardly adjusted shift pattern.

Here, the reference vehicle speed may be an up-shift reference vehicle speed on a general shift pattern map, which is a reference for up-shifting the shift stage from the first gear to the second gear when driving the vehicle.

In addition, the two-legged driving determining unit may determine the two-legged driving when the output of the pedal amount detecting unit is equal to or greater than a set value and the brake pressure calculated in real time from the output of the brake pressure detecting unit is equal to or greater than the set pressure.

In addition, the average pressure calculator may calculate an average of the brake pressures calculated in real time from the output of the brake pressure detector during a time during which the brake pedal and the accelerator pedal are simultaneously operated regardless of the intention to decelerate.

In addition, the average pressure calculating unit calculates the average value of the pressure applied to the brake pedal only when two-foot operation is detected at the time when each gear shift is required, and the shift pattern correcting unit corresponds to the calculated average value (average value of brake pressure) The shift reference point may be upwardly adjusted by applying a compensation value.

In addition, when the two-legged driving cancel signal is output from the two-legged driving judging unit while the shift control is being executed according to the shift pattern in which the shift reference point is adjusted upward, the shift control unit immediately changes to the normal shift pattern before the shift pattern correction and applies the shift control. can be carried out.

Here, the compensation value for upwardly adjusting the shift reference point is set to increase or decrease in proportion to the average value of the pressure, and the compensation value is weighted toward the upper stage so that the compensation width of the shift reference point increases. can

According to an embodiment of the present invention, a shift control method and apparatus for two-wheeled driving of an automatic transmission vehicle reduce a vehicle speed decrease between shifts caused by placing a left foot on a brake pedal during two-footed driving by moving a shift reference point (moving the shift reference point to a high speed side) By compensating through this, it is possible to secure a smooth and stable shift feel while preventing the deterioration of the starting feeling due to the decrease in vehicle speed between shifts during two-wheeled driving.

1 is a schematic configuration diagram of an apparatus for controlling a shift in two-wheeled driving of an automatic transmission vehicle according to an embodiment of the present invention;
2 is a shift diagram of an automatic transmission for explaining a concept of correcting a shift pattern during two-wheeled driving, which is the main concept of the present invention.
3 is an exemplary view for explaining a change in a shift reference point according to a two-wheeled driving shift control performed by the shift control device according to an embodiment of the present invention when shifting from 1st gear to 2nd gear in comparison with that of a general driver (one-legged driving) .
4 is a flowchart for explaining a shift control method during two-wheeled driving of an automatic transmission vehicle according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings.

In describing the present invention, the terms used in the following specification are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise.

In addition, in this specification, terms such as "comprise" or "have" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other It is to be understood that this does not preclude the possibility of addition or presence of features or numbers, steps, operations, components, parts, or combinations thereof.

Also, terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

In addition, terms such as “…unit”, “…unit”, “…module”, etc. described in the specification mean a unit that processes at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software. can

In the description with reference to the accompanying drawings, the same reference numerals will be assigned to the same components, and repeated descriptions of the same components will be omitted. And, in the description of the present invention, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

The present invention is for controlling the shift during two-legged driving in which the left foot operates the brake pedal and the right foot operates the accelerator pedal. When it is determined, the shift pattern is corrected immediately and the shift is controlled by applying the corrected shift pattern, thereby preventing a decrease in vehicle speed between shifts and a corresponding decrease in shift feeling.

First, a shift control device for two-wheeled driving of an automatic transmission vehicle according to an aspect of the present invention will be described with reference to FIG. 1 .

1 is a schematic configuration diagram of a shift control apparatus for two-wheeled driving of an automatic transmission vehicle according to an embodiment of the present invention, and FIG. 2 is a diagram illustrating a concept of correcting a shift pattern during two-wheeled driving, which is the main concept of the present invention. is the gearbox.

Referring to FIGS. 1 and 2 , the shift control apparatus for two-wheeled driving of an automatic transmission vehicle according to an embodiment of the present invention includes a vehicle speed detection unit 10 and a pedal amount detection unit 20 . The vehicle speed detection unit 10 calculates the speed of the vehicle by applying the output of the wheel sensor to a specific calculation formula (the tire circumference Ⅷ tire revolutions per minute (wheel sensor output value) Ⅷ 60), and the pedal amount detection unit 20 of the accelerator pedal It may be an accelerator position sensor (APS) that detects a pedal amount.

Information detected by the vehicle speed detector 10 and the pedal amount detector 20 (vehicle speed and accelerator pedal displacement information) is transmitted to the controller 40 , and the controller 40 receives information detected by the vehicle speed detector 10 from among the received information. (vehicle speed information) is analyzed to determine whether the current vehicle speed satisfies a predetermined condition. The predetermined condition may be a speed condition capable of driving a shift pattern correction program for preventing a decrease in vehicle speed and shift feeling between shifts due to two-wheeled driving.

When the current vehicle speed satisfies the predetermined speed condition, the control unit 40 determines whether to drive with both legs based on the output of the brake pressure detecting unit 30 that detects the brake pressure and the signal output by the pedal amount detecting unit 20 . do. When it is determined that two-wheeled driving is performed, the correction program for correcting the shift pattern is driven, and the shift pattern corrected through the correction program is applied to perform shift control for the automatic transmission 50 .

To this end, the controller 40 may include two or more processors operating in a program programmed to perform a series of shift control processes, which will be described later, step by step. Preferably, the plurality of processors may include a two-legged operation determining unit 42 for determining two-legged driving and an average pressure calculating unit 44 for deriving an average of the brake operating pressure. In addition, a shift pattern correction unit 46 and a shift control unit 48 may be included.

The two-legged driving determining unit 42 determines whether the driver is driving with both legs (driving in which the driver operates the brake pedal with the left foot and the accelerator pedal with the right foot). More specifically, when the current vehicle speed detected from the output of the vehicle speed detecting unit 10 reaches a preset reference vehicle speed, two-legged driving is determined based on whether the accelerator pedal and the brake pedal are being simultaneously operated.

If the output of the pedal amount detection unit 20 is equal to or greater than the set value, and the brake pressure calculated in real time from the output of the brake pressure detecting unit 30 is equal to or greater than the set pressure, the two-legged driving determining unit 42 may determine the two-legged driving. If the output of the pedal amount detecting unit 20 is less than the set value or the output of the brake pressure detecting unit 30 is less than the set pressure, it is determined as a normal one-leg operation, and the subsequent process (average pressure calculation, shift pattern correction) is performed. stop

The reference vehicle speed, which is a reference in driving the process for determining whether the two-legged driving determination unit 42 is two-legged driving, is preferably a general shift pattern (optimal shift performance in general road driving) as shown in FIG. 2A . It may be the lowest vehicle speed among the vehicle speeds serving as the standard for shifting from the first gear to the second gear in a map in which the shift reference point for each gear that can be exhibited is set for two factors, the vehicle speed and the pedal amount (APS).

In addition, the set value (the set value of the pedal amount of the accelerator pedal), which is the standard in determining whether to drive with both legs, is the minimum amount of pedal that can determine the driver's will to accelerate, and may vary depending on the specifications, weight, and use of the vehicle. , the set pressure may be determined as a value derived through an experiment as the brake operating pressure at the point in time when the brake brake operation starts to affect the upper gear shift according to vehicle acceleration.

When it is determined that the current vehicle operation state is two-legged driving, the average pressure calculating unit 44 calculates the average value of the pressure applied to the brake pedal in real time from the time when the two-legged driving is determined. Preferably, the average of the brake pressures calculated in real time from the output of the brake pressure detection unit 30 during the time when two-legged driving is sensed may be determined as the average value of the pressure regardless of the will to decelerate.

Information on the average value of the pressure output in real time from the average pressure calculating unit 44 from the time when two-legged driving is sensed is transmitted to the shift pattern correcting unit 46 in real time. The shift pattern correction unit 46 selects a corresponding compensation value according to the information transmitted in real time (the average value of the brake pressure output from the time when two-legged driving is sensed), and applies the selected compensation value to upwardly adjust the shift reference point for each stage execute the task

Here, 'upgrade the shift reference point for each stage' refers to the shift time point for each stage of the automatic transmission 50 in the shift diagram of FIG. 2 showing the pedal amount of the accelerator pedal and two factors of the vehicle speed. The operation of moving the reference line in parallel to the high-speed side, that is, the operation of changing the shift pattern from the general shift pattern (shift pattern applied during one-leg operation) shown in FIG. it means.

Preferably, in consideration of the variability of the two-legged driver while driving, when two-legged driving is detected at the time when each stage shift is required (two-engine driving is maintained in a state that has already been detected before the time when shifting is required, or two-legged driving is performed at the time when shifting is required) The average pressure calculating unit 44 may be configured to calculate the average value of the pressure applied to the brake pedal in real time only in all of the detected cases.

In this case, the average pressure calculating unit 44 calculates in real time the average value of the pressure applied to the brake pedal from the time when the shift is required for each stage, not the time when two-legged driving is simply sensed, and the shift pattern correcting unit 46 is The shift reference point may be adjusted upward in real time by applying a corresponding compensation value based on the information (average value of the brake pressure) provided by the average pressure calculating unit 44 from the time point.

The compensation value (vehicle speed value corresponding to the width of r1 in FIG. 2(b)) for upwardly adjusting the shift reference point may be set to increase or decrease in proportion to the average value of the pressure, and in this case, the upper stage (first stage) -> 5), a weight may be given to the compensation value r1 to increase the compensation width of the shift reference point. That is, it may be set such that r1 < r2 < r3 < r4 as in the example of FIG. 2B .

Meanwhile, the shift control unit 48 executes shift control so that the shift can be performed according to the shift pattern in which the shift reference point is adjusted upward. If the two-legged operation cancel signal is output from the two-legged driving determination unit 42 while shift control is being executed according to the shift pattern in which the shift reference point is adjusted upward, immediately, the general shift pattern before the shift pattern correction (Fig. 2(a)) ) to control the shift.

For example, when two-legged driving is detected while shifting control of the automatic transmission 50 is executed in the shift pattern shown in FIG. only operation is detected or both pedals are not operated), immediately before the shift pattern correction, the shift pattern shown in FIG. 2 (a) is applied to control the shift.

3 is an exemplary view for explaining a change in a shift reference point according to a two-wheeled driving shift control performed by the shift control device according to an embodiment of the present invention when shifting from 1st gear to 2nd gear in comparison with that of a general driver (one-legged driving) to be.

First, as shown in Fig. 3(a), in the general shift pattern, at 20% APS (meaning that the pedal amount of the accelerator pedal is 20 when the full stroke is 100), the vehicle speed (VSP) is 20km/h from 1st gear to 2nd gear. When the upshift is set, the shift is performed from 1st gear to 2nd gear when the APS is 20% and the vehicle speed (VSP) reaches 20km/h in accordance with the set shift pattern in normal driving (one-legged driving).

On the other hand, when two-legged driving is detected and the shift reference point is adjusted upward, even if the APS is 20% and the vehicle speed (VSP) is 20 km/h, the shift from 1st to 2nd gear is not executed, and the shifting reference point is raised according to the two-legged driving The shift from 1st gear to 2nd gear is performed at the corrected vehicle speed in which the shift timing is delayed due to the adjustment (moving the shift reference point to the high-speed side) (refer to FIGS. 3(b) and 3(c)).

As shown in FIGS. 3B and 3C , the reference point for shifting from 1st gear to 2nd gear may vary depending on the magnitude of the average value of the brake pressure sensed even when driving with both feet. This is because, as described above, the compensation value for shifting the shift reference point is set to increase or decrease in proportion to the average value of the brake pressure.

Accordingly, compared to the case of two-legged driving in which the brake pedal operation is relatively light as shown in FIG. Shifting is performed at high vehicle speed.

Hereinafter, a shift control process performed by the shift control device during two-wheeled driving of an automatic transmission vehicle according to an exemplary embodiment of the present invention will be described with reference to FIG. 4 . For convenience of description, the configuration shown in FIG. 1 described above will be described with reference to the corresponding reference numerals.

4 is a flowchart illustrating a shift control method during two-wheeled driving of an automatic transmission vehicle according to an embodiment of the present invention.

Referring to FIG. 4 , the shift control method during two-wheeled driving of an automatic transmission vehicle according to an embodiment of the present invention starts with the vehicle speed monitoring step S100 of determining whether the vehicle speed reaches the reference vehicle speed set for changing the shift reference point. In step S100 , the reference vehicle speed may be an up-shift reference vehicle speed on a general shift pattern map that is a reference for up-shifting the shift stage from the first gear to the second gear while driving the vehicle.

As a result of monitoring the vehicle speed through step S100, if it is determined that the current vehicle speed has reached the reference vehicle speed, a two-legged driving determination step S200 of determining whether to drive with both legs is successively performed. In step S200 , it is possible to determine two-legged driving in which the brake accelerator pedal and the brake pedal are simultaneously operated based on the above-described output signal of the pedal amount detection unit 20 and the output signal of the brake pressure detection unit 30 .

In step S200, preferably, the output of the pedal amount detection unit 20 (APS, Accelerator Position Sensor) that detects the pedal amount of the accelerator pedal is equal to or greater than the set value, and the output of the brake pressure detection unit 30 (brake oil pressure sensor) If the brake pressure calculated in real time is greater than or equal to the set pressure, it can be determined as two-legged operation.

Here, the set value (the set value of the pedal amount of the accelerator pedal), which is a reference in determining whether to drive with both legs, may be determined as the minimum level of pedal amount that can determine the driver's will to accelerate, and the set pressure is the brake brake operation. The brake operating pressure at the point in time when the upper gear shift according to vehicle acceleration starts to affect, and may be determined as a value derived through an experiment.

As a result of the determination through step S200, when it is determined that two-legged driving is performed, an average pressure calculation step S300 of calculating an average value of the pressure applied to the brake pedal in real time is performed. In this case, the average value may be an average value of the brake pressure calculated in real time from the output of the brake oil pressure sensor while the brake pedal and the accelerator pedal are simultaneously operated regardless of the will to decelerate.

In some cases, when two-legged driving is detected at the time when each gear shift is required in consideration of the variability while driving by a two-legged driver (two-engine driving is already detected before the time when shifting is required, or both feet It may be set to calculate the average value of the pressure applied to the brake pedal in real time only when driving is detected).

In this case, the average of the brake pressures while the pressure is applied to the brake pedal according to the two-legged operation from the time when the shift is required for each stage, rather than when the two-legged operation is simply sensed, may be calculated as the average value of the pressure.

When the average value of the brake pressure during two-foot driving is calculated in step S300, a compensation value corresponding to the calculated average value of the brake pressure is selected, and the selected compensation value is applied to upwardly adjust the shift reference point for each stage (moving the shift reference point to the high-speed side) ) a shift pattern correction step (S400) is performed.

Here, the compensation value is a vehicle speed that can be shifted smoothly according to the average value of the brake pressure through repeated experiments or simulations, and the vehicle speed corresponding to the shift reference point of the original shift pattern (general shift pattern) at the derived vehicle speed It can be derived through the calculation of the equation subtracting , and stored in a table format with the average value of the brake pressure as a factor in a dedicated map.

In this case, when the average value of the brake pressure is calculated through step S300, the compensation value matched with the calculated average value is retrieved from the dedicated map in step S400, and the retrieved compensation value is converted to the original shift pattern (general shift pattern) The shift pattern correction in which the shift reference point for each stage is upwardly adjusted (the shift reference point is moved to the high-speed side) may be corrected by reflecting it in real time.

The compensation value may of course be set to a value that increases or decreases in proportion to the average value of the pressure. This is because, when the braking force is increased by pressing the brake pedal hard, the decrease in vehicle speed between shifts increases accordingly, requiring greater vehicle speed compensation. In addition, it may be set to increase the compensation width of the shift reference point by weighting the compensation value toward the upper stage.

Meanwhile, when the shift reference point is adjusted upward through step S400, a shift control step S500 of controlling the shift according to the corrected shift pattern in which the shift reference point is upwardly adjusted is performed. At this time, if two-wheeled driving is sensed while shift control is being executed according to the shift pattern in which the shift reference point is adjusted upward, the general shift pattern is changed and applied immediately to control the shift.

Due to the absence of shift control technology that can realize a smooth shifting feeling according to the driving characteristics of a two-legged driver, conventionally, the vehicle starts by decelerating the vehicle speed between shifts during two-foot driving (driving with the left foot on the brake pedal and the right foot on the accelerator pedal). There is a problem in that the feeling is greatly reduced and the shifting feeling is deteriorated. In addition, there is a problem in that the shift process is not smooth due to the deceleration of the vehicle speed between shifts and a shift shock occurs.

On the other hand, the shift control method and apparatus for two-wheeled driving of an automatic transmission vehicle according to an embodiment of the present invention reduce the vehicle speed decrease between shifts caused by placing the left foot on the brake pedal during two-footed driving by moving the shift reference point (the shift reference point to the high-speed side) movement), it is possible to secure a smooth and stable shifting feeling while preventing a decrease in the sense of departure due to a decrease in vehicle speed between shifts during two-wheeled driving.

In the above detailed description of the present invention, only specific embodiments thereof have been described. However, it is to be understood that the present invention is not limited to the particular form recited in the detailed description, but rather, it is to be understood to cover all modifications and equivalents and substitutions falling within the spirit and scope of the invention as defined by the appended claims. should be

10: vehicle speed detection unit
20: pedal amount detection unit
30: brake pressure detection unit
40: control unit
42: two-legged driving judgment unit
44: average pressure calculation unit
46: shift pattern correction unit
48: shift control unit
50: automatic transmission

Claims (15)

(a) a vehicle speed monitoring step of determining whether the vehicle speed reaches a reference vehicle speed set for changing a shift reference point;
(b) determining whether the accelerator pedal and the brake pedal are being operated simultaneously when the vehicle speed reaches the reference vehicle speed;
(c) an average pressure calculation step of calculating an average value of the pressure applied to the brake pedal when it is determined that the two-legged driving is performed;
(d) a shift pattern correction step of upwardly adjusting the shift reference point for each stage (moving the shift reference point toward the high speed side) by applying a corresponding compensation value according to the average value of the calculated pressure; and
(e) a shift control step of controlling the shift according to the shift pattern in which the shift reference point is adjusted upward.
The method of claim 1,
In step (a), the reference vehicle speed is
A shift control method for two-wheeled driving of an automatic transmission vehicle, which is an up-shift reference vehicle speed on a general shift pattern map that is a standard for up-shifting the shift stage from 1st to 2nd gear when driving the vehicle.
The method of claim 1,
In step (b),
The APS (Accelerator Position Sensor) output that detects the pedal amount of the accelerator pedal is greater than the set value,
A shift control method for two-wheeled driving of an automatic transmission vehicle that is determined to be two-wheeled operation when the brake pressure calculated in real time from the output of the brake oil pressure sensor is greater than or equal to the set pressure.
The method of claim 1,
The average value in step (c) is,
Shift control method for two-wheeled driving of an automatic transmission vehicle, which is the average value of the brake pressure calculated in real time from the output of the brake oil pressure sensor during the time the brake pedal and accelerator pedal are simultaneously operated regardless of the will to decelerate.
The method of claim 1,
The average value of the pressure applied to the brake pedal is calculated in real time only when two-foot operation is detected at the time when each gear shift is required, and a corresponding compensation value is applied according to the calculated average value (average value of the brake pressure) to increase the shift reference point. Shift control method for two-wheeled driving of an automatic transmission vehicle.
The method of claim 1,
In step (e), when two-wheeled driving is released while shifting control is executed according to the shift pattern in which the shift reference point is adjusted upward, the general shift pattern is immediately applied to control the shift by applying the normal shift pattern.
The method of claim 1,
The compensation value for upwardly adjusting the shift reference point increases or decreases in proportion to the average value of the pressure,
A shift control method for two-wheeled driving of an automatic transmission vehicle, in which a weight is given to the compensation value as it goes to an upper stage, so that the compensation width of a shift reference point increases.
a vehicle speed detector configured to detect a vehicle speed;
a pedal amount detecting unit detecting a pedal amount of the accelerator pedal;
a brake pressure detection unit that detects a brake pressure; and
and a control unit for controlling the shift of the automatic transmission based on the signal output by the vehicle speed detecting unit, the pedal amount detecting unit, and the pressure detecting unit;
The control unit is
Based on the signals output by the pedal amount detection unit and the pressure detection unit, it is determined whether two-legged driving is performed and the shift pattern is corrected,
A shift control device for two-wheeled driving of an automatic transmission vehicle that controls shifting of the automatic transmission by applying a corrected shift pattern during two-wheeled driving.
9. The method of claim 8,
The control unit is
a two-legged driving determination unit configured to determine whether an accelerator pedal and a brake pedal are being simultaneously operated when the current vehicle speed determined from the output of the vehicle speed detection unit reaches a reference vehicle speed;
an average pressure calculator that calculates an average value of the pressure applied to the brake pedal when it is determined that two-legged driving is performed;
a shift pattern correcting unit that upwardly adjusts the shift reference point for each stage (moving the shift reference point toward the high speed side) by applying a corresponding compensation value according to the average value of the calculated pressure; and
A shift control apparatus for two-wheeled driving of an automatic transmission vehicle comprising a; a shift control unit configured to control a shift according to a shift pattern in which a shift reference point is adjusted upward.
10. The method of claim 9,
The reference vehicle speed is an upshift reference vehicle speed on a general shift pattern map that is a reference for upshifting a shift stage from 1st to 2nd gear when driving the vehicle.
10. The method of claim 9,
The two-legged driving determination unit,
The output of the pedal amount detection unit is greater than or equal to the set value,
When the brake pressure calculated in real time from the output of the brake pressure detection unit is equal to or greater than the set pressure, the shift control device for two-wheeled driving of an automatic transmission vehicle is determined as two-legged driving.
10. The method of claim 9,
The average pressure calculating unit,
A shift control device for two-wheeled driving of an automatic transmission vehicle that calculates the average value of the brake pressure calculated in real time from the output of the brake pressure detection unit during a time when the brake pedal and the accelerator pedal are simultaneously operated regardless of the will to decelerate.
10. The method of claim 9,
The average pressure calculator calculates the average value of the pressure applied to the brake pedal only when two-foot operation is detected at the time when each gear shift is required,
The shift pattern correction unit applies a corresponding compensation value according to the calculated average value (average value of the brake pressure) to adjust the shift reference point upward.
10. The method of claim 9,
The shift control unit,
Shift control device for two-wheeled driving of an automatic transmission vehicle that controls shift by applying a general shift pattern immediately when the two-legged driving cancel signal is output from the two-legged driving judging unit while shift control is being performed according to the shift pattern in which the shift reference point is adjusted upward .
10. The method of claim 9,
The compensation value for upwardly adjusting the shift reference point is set to increase or decrease in proportion to the average value of the pressure;
A shift control device for two-wheeled driving of an automatic transmission vehicle, which is set such that a weight is given to the compensation value to increase the compensation width of the shift reference point toward an upper stage.

Images