KR20210040483A - Apparatus for Controlling the MDPS and the Method thereof - Google Patents

Abstract

The present invention relates to a device and method for controlling MDPS output compensation when getting on and off. The device for controlling MDPS output compensation when getting on and off according to an embodiment of the present invention includes: an MDPS configured to apply driving force to a steering wheel of a vehicle; and a control unit for determining the getting on and off conditions and calculating a compensation scale. The control unit is configured to control the output by performing MDPS compensation when the getting on and off conditions of a vehicle are satisfied.

Description

MDPS output compensation control apparatus and method for getting on and off TECHNICAL FIELD [Apparatus for Controlling the MDPS and the Method thereof]

The present invention relates to an apparatus and method for compensating MDPS output when getting on and off, and an apparatus and method for compensating MDPS output when getting on and off for compensating the output of MDPS under certain conditions so that a steering wheel can serve as a support in a driver's getting on and off environment. It is about.

In general, motor-driven power steering (“MDPS”) uses a motor to provide auxiliary torque in a direction in which a driver steers, thereby making handling lighter.

Unlike conventional hydraulic power steering (HPS), the MDPS automatically controls the operation of the motor according to the driving conditions of the vehicle, thereby improving steering performance and steering feel.

At this time, the MDPS includes a torque sensor that measures the driver's steering torque input to the steering wheel, a steering angle sensor that measures the steering angle of the steering wheel, and a vehicle speed sensor that measures the vehicle speed to determine the driving conditions of the vehicle. Rotating the motor so that the steering wheel can be restored to its original position (On-Center) with reference to the steering angle is called steering restoring force.

However, there is a problem in that it is difficult to use the steering wheel as a support when the user gets on or off because it is configured so that the motor output can be always applied to the steering wheel by the MDPS in the state of being turned on.

In addition, since the motor output control is not performed under the condition of the user's getting on and off, there is a risk of falling when the user gets on and off due to the rotation of the steering.

Patent Document 1: Korean Patent Application Publication No. 10-0751684

The present invention has been conceived to solve the above problems, and an object of the present invention is to provide a steering wheel that performs the function of a supporter in a driver's getting on/off environment by compensating for MDPS output according to a ride condition.

In addition, the present invention is configured to compensate for the MDPS output in consideration of various riding and getting on and off environments, and is to compensate for the MDPS output applied to the existing one.

The objects of the present invention are not limited to the above-mentioned objects, and other objects of the present invention that are not mentioned can be understood by the following description, and can be more clearly understood by examples of the present invention. In addition, the objects of the present invention can be realized by the means indicated in the claims and combinations thereof.

The MDPS output compensation control apparatus and method for getting on and off to achieve the object of the present invention described above includes the following configuration.

As an embodiment of the present invention, the MDPS output compensation control device upon getting on and off includes an MDPS configured to apply a driving force to a steering wheel of a vehicle, a control unit that determines a ride condition and calculates a compensation scale, wherein the control unit determines the ride condition of the vehicle. If satisfied, it provides an MDPS output compensation control device at the time of getting on and off, which is configured to control the output by performing MDPS compensation.

In addition, the control unit may include a boarding/alighting condition determination unit for determining a boarding/alighting condition; It provides a MDPS output compensation control device for getting on and off, comprising; a scale calculating unit that calculates a scale for controlling the output of the MDPS according to the getting on and off conditions.

In addition, the riding condition provides an MDPS output compensation control device for getting on and off, which is configured to determine at least one of whether the user activates the MDPS compensation function, whether the vehicle is stopped, whether the transmission has switched to the parking mode, and whether the driver's seat door is open. .

In addition, the MDPS compensation provides an MDPS output compensation control device for getting on and off, in which the final output of the MDPS has a smaller output than the conventional MDPS output.

In addition, in performing MDPS compensation, the control unit provides an MDPS output compensation control device for getting on and off, which is configured to calculate a scale and compensate for the calculated scale on an existing MDPS output.

In addition, as an embodiment of the present invention, the MDPS output compensation control method for getting on and off includes the steps of determining a user's getting on and off conditions; Calculating a scale when the user's getting on and off condition is satisfied; Compensating the calculated scale to the existing MDPS output; provides a MDPS output compensation control method including a.

In addition, a boarding and disembarkation condition determination unit for determining a boarding and disembarkation condition; And a scale calculating unit that calculates a scale for controlling the output of the MDPS according to the getting on and off conditions. It provides an MDPS output compensation control method for getting on and off.

In addition, the riding condition provides a MDPS output compensation control method for getting on and off by considering at least one of whether the user activates the MDPS compensation function, whether the vehicle is stopped, whether the transmission is switched to the parking mode, and whether the driver's seat door is open.

In addition, the determining of a user's getting on and off condition may include determining whether an MDPS compensation function activation input is present; When there is an MDPS compensation function activation input, determining a condition for getting on and off the vehicle; it provides an MDPS output compensation control method for getting on and off.

In addition, if the MDPS compensation function activation input does not exist, the existing MDPS output is applied, and when the MDPS compensation function activation input is present and the vehicle boarding/unloading condition is not satisfied, the MDPS may have a lower output value than the existing MDPS output. Provides MDPS output compensation control method when getting on and off to compensate for the final output.

The present invention can obtain the following effects by the configuration, combination, and use relationship to be described below with the present embodiment.

The present invention has an effect of providing an apparatus and method for compensating MDPS output when getting on and off by controlling the output of MDPS applied to a steering wheel so that a driver can more easily get on and off.

In addition, the present invention has an effect of being configured to compensate for the feeling of heterogeneity of the steering wheel that occurs between getting on and off by controlling the output of the MDPS that is always driven in the start-on state.

1 is a block diagram showing a coupling relationship between an MDPS output compensation control device when getting on and off as an embodiment of the present invention.
2 is a flowchart illustrating a method for compensating MDPS output when getting on and off as an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. The embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the following embodiments. This embodiment is provided to more completely describe the present invention to those with average knowledge in the art.

In addition, terms such as "... unit" 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.

In addition, the term "compensation" described in the specification is configured to include a concept in which the calculated scale changes the output generated according to the previously set MDPS logic.

In addition, the “existing MDPS output” described in the specification may be interpreted to mean a value according to the MDPS output logic stored in the control unit 100 and applied according to the driving of the vehicle.

In addition, the scale set in the present invention is configured to multiply the existing MDPS output to set the MDPS final output.

The present invention relates to a motor-driven power steering (MDPS) (hereinafter, referred to as MDPS) configured to assist steering a steering wheel of a vehicle, wherein the MDPS assembly 200 is configured to be interlocked with the steering wheel. , It is configured so that the driving force of the motor can be applied when the steering wheel is steered to assist the driver's steering.

The MDPS assembly 200 may include a steering angle sensor, and when a steering angle of a steering wheel is input, the steering angle sensor receives a steering request from a user and applies a steering auxiliary driving force to a steering column or a rack gear through a motor. It is composed.

In addition, since the MDPS assembly 200 may be configured to further include a vehicle speed sensor, it may be configured to apply a driving force for steering or a steering restoring force based on the vehicle speed data and the steering angle data.

1 is a block diagram of an apparatus for compensating MDPS output when getting on and off as an embodiment of the present invention.

As shown, the MDPS assembly 200 includes a steering angle sensor (not shown), a vehicle speed sensor (not shown), an acceleration sensor (not shown), etc. that are located in the vehicle. It is configured with a controller 100 that receives acceleration and controls the MDPS assembly 200 to output a driving force based on the data.

The control unit 100 may be composed of an electronic control unit (ECU) located in the vehicle, and as a sub-component of the control unit 100, the boarding and disembarkation condition determination unit 110 for determining the boarding and disembarkation conditions and the boarding and disembarkation conditions According to this, it may include a scale calculator 120 that calculates a scale for controlling the output of the MDPS.

The scale calculating unit 120 is configured to provide a scale calculated to the output of the MDPS assembly 200 when the riding condition is input to the getting on/off condition determining unit 110.

More preferably, when the riding condition input is applied from the getting on/off condition determination unit 110, the output of the MDPS is corrected through the scale output from the scale calculating unit 120 so that the output value set in the MDPS assembly 200 becomes 0. It is composed.

Conversely, when it is determined that the boarding and disembarkation conditions are not applied, the scale calculating unit 120 may set the output scale so that the output value applied according to the use environment of the MDPS is maintained.

That is, the scale calculation unit 120 is configured to calculate a scale to correct the output of the MDPS assembly 200 set in the prior art according to whether the boarding and disembarkation conditions are input by the boarding and dismounting condition determination unit 110, and the calculated scale is 0 to 1. It may consist of a ramp signal that is configured to have a value.

The getting on and off condition determination unit 110 is configured to determine the getting on and off condition of the vehicle, and specifically, is configured to receive a door open/close signal of the vehicle, a parking gear input of the transmission, and whether the vehicle is in a stopped state. Is configured to receive data for.

More preferably, the control unit 100 is configured to communicate with a transmission control unit (TCU) to receive gear change data of the transmission, and to determine whether the vehicle is in a stopped state by interlocking with the vehicle speed sensor. .

That is, as a subordinate configuration of the control unit 100, the boarding and disembarkation condition determining unit 110 is configured to determine whether the vehicle is stopped, whether the door is opened or closed, and whether the parking position of the transmission is changed as a boarding/unloading signal.

In an embodiment of the present invention, as a vehicle getting on and off signal, at least one of whether the vehicle is stopped, whether the door is opened or closed, and whether the parking position of the transmission is changed, and if at least one of the above conditions is satisfied, the getting on/off signal is It is judged to have been entered.

In another embodiment of the present invention, as a signal for getting on and off a vehicle, it is determined that the getting on and off condition is satisfied when all of whether the vehicle is stopped, whether the door is opened or closed, and whether the parking position of the transmission is changed are satisfied.

In addition, the MDPS assembly 200 may be configured to include an input unit configured to select the MDPS compensation function activation or function off, and is configured to selectively activate the MDPS compensation function according to the user's request when getting on and off. .

In summary, the boarding and disembarkation condition determination unit 110 is configured to determine whether the MDPS compensation function is activated in advance, and to determine the boarding and disembarkation conditions of the vehicle under the condition in which the MDPS compensation function is activated.

As described above, when the riding condition of the user is satisfied in the getting on/off condition determining unit 110, it is configured to include a scale calculating unit 120 that calculates a scale to perform output compensation of MDPS.

In an embodiment of the present invention, the final MDPS output value compensated and output is configured to be calculated by multiplying the existing MDPS output by a scale.

Therefore, when the scale is 1, it is configured to maintain the existing MDPS output, and when the scale is 0, it is configured to disable the function of the MDPS.

The scale calculator 120 is configured to calculate a scale that is compensated according to a ride condition. In a state in which the compensation function of the MDPS is deactivated, the scale calculation unit 120 calculates the scale so that the existing MDPS output can be used.

Compared with this, if the condition for getting on and off the vehicle is not input while the MDPS compensation function is activated, it is determined whether the scale is 0, and if the scale is not 0, the preset scale is applied to the existing MDPS output. It is configured to be.

In addition, if the vehicle ride condition is not input and the scale is not 0 while the MDPS compensation function is activated, it is a state in which the existing MDPS output is compensated according to the user's setting. It maintains the state where the scale is compensated.

In addition, when the MDPS compensation function is activated and the scale is 0 when the vehicle boarding/unloading condition is not input, the existing MDPS logic is applied by performing a scale ramp-up (from 0 to 1).

That is, if the condition of getting on and off the vehicle is not input while the MDPS compensation function is activated, the scale ramp-up is performed according to whether the scale is 0, and the MDPS is used to have an output value according to the existing MDPS output. Control.

On the contrary, when the condition for getting on and off the vehicle is satisfied while the MDPS compensation function is activated, the scale calculating unit 120 determines whether the scale is 1, and when the scale is 1, the scale ramp-down is performed so that the scale becomes 0. And the scale is configured to perform compensation on the existing MDPS output.

In this way, when the MDPS compensation function is activated and the condition for getting on and off the vehicle is satisfied and the initially set scale is 1, the scale calculating unit 120 is configured to set the scale so that the final MDPS output is 0.

Unlike this, when the MDPS compensation function is activated and the condition for getting on and off the vehicle is satisfied and the initially set scale is not 1, the MDPS final output is calculated by multiplying the set scale and the existing MDPS output.

In summary, the scale calculation unit 120 is configured such that the MDPS compensation function is activated under the condition that the scale input set by the user does not exist, and the scale becomes 0 when the vehicle boarding and disembarkation conditions are satisfied, and the MDPS compensation function is deactivated or When the MDPS compensation function is activated and the condition of getting on and off the vehicle is not satisfied, the operation is performed so that the scale becomes 1, and the existing MDPS output is configured to become the final MDPS output.

In addition, when a scale (a value between 0 and 1) is set according to a user's request, the set scale is configured to be compensated for the existing MDPS output and set as the MDPS final output.

Moreover, the scale calculation unit 120 is configured to control the MDPS assembly 200 so that the final MDPS output is reduced compared to the existing MDPS output while the MDPS compensation function is activated.

2 is a flowchart illustrating a method for compensating MDPS output when getting on and off, as an embodiment of the present invention.

As shown, as an embodiment of the present invention, the steering wheel is boarded and disembarked through the control unit 100 configured to determine whether there is a request for getting on and off the driver, and to calculate a scale to control the final output of the MDPS accordingly. Disclosed is a method of controlling so that it can function as a support part.

The MDPS output compensation control method for getting on and off is configured to determine the getting on and off condition in advance (S100), and the getting on and off condition is configured to determine whether the MDPS compensation function is activated or not (S110) beforehand, and to determine the getting on and off condition of the vehicle ( S120).

In determining the boarding and disembarkation conditions of the vehicle (S120), it is configured to determine whether the vehicle is stopped using the vehicle speed sensor, determine the change of the parking mode of the transmission through the transmission control unit, and determine the driver's seat door open.

More preferably, in one embodiment of the present invention, when at least one of the vehicle stopping, the transmission parking mode, and the driver's seat door open is satisfied, it is determined that the boarding and disembarkation conditions are satisfied, and in another embodiment, the vehicle is stopped. , When both the parking mode of the transmission and the driver's seat door open are satisfied, it may be configured to determine that the boarding and disembarkation conditions are satisfied.

When the MDPS compensation function is deactivated in the boarding and disembarkation condition determination unit 110 (S110), the existing MDPS output is configured to be set as the final output of the MDPS (S270).

In the state where the MDPS compensation function is activated in the boarding and disembarkation condition determination unit 110 (S110), the boarding and disembarkation conditions of the vehicle are determined (S120), as the boarding and disembarkation conditions of the vehicle, during stopping of the vehicle, the parking mode of the transmission, and the driver's seat door being opened. It is configured to determine at least one or more.

More preferably, in another embodiment of the present invention, when all of the stopping of the vehicle, the parking mode of the transmission, and the opening of the driver's seat are satisfied, it is determined that the condition for getting on and off the vehicle is satisfied (S120).

When it is determined that the MDPS compensation function is not activated by the boarding and alighting condition determining unit 110 (S110), the scale calculating unit 120 is configured to maintain the existing MDPS output (S270).

In addition, if the ride condition determination unit 110 does not satisfy the ride condition of the vehicle (S120), the scale calculation unit 120 determines whether the set scale is 0 (S240), and if the scale is 0, the scale ramp The scale is configured to be 1 by performing up (S250), and configured to compensate the scale to the existing MDPS output (S260).

Different from the above, the scale calculating unit 120 is configured to compensate the scale to the existing MDPS output when the scale set in the vehicle is not satisfied (S120) is not 0 (S240) (S260). ).

When it is determined that the boarding and disembarkation conditions are satisfied by the boarding and disembarkation condition determining unit 110 (S100), the scale calculating unit 120 determines whether the scale is 1 (S210).

When the set scale is 1, the scale calculation unit 120 performs a scale ramp down to calculate the scale to be set to 0 (S220), and is configured to compensate the scale to the existing MDPS output (S230).

More preferably, the final MDPS output is configured to be 0 through compensation with the scale set to 0 (S230).

Unlike this, when the set scale is not 1 (S210), the scale calculator 120 is configured to compensate for the set scale other than 1 or 0 to the existing MDPS output (S230).

That is, when the user sets the scale, it is configured to set the MDPS final output according to the set scale.

The detailed description above is illustrative of the present invention. In addition, the above description shows and describes preferred embodiments of the present invention, and the present invention can be used in various other combinations, modifications, and environments. That is, changes or modifications may be made within the scope of the concept of the invention disclosed in the present specification, the scope equivalent to the disclosed contents, and/or the skill or knowledge of the art. The described embodiment describes the best state for implementing the technical idea of the present invention, and various changes required in the specific application fields and uses of the present invention are also possible. Therefore, the detailed description of the invention is not intended to limit the invention to the disclosed embodiment. In addition, the appended claims should be construed as including other embodiments.

100: control unit
110: boarding and disembarkation condition determination unit
120: scale operation unit
200: MDPS assembly

Claims (10)

MDPS configured to apply a driving force to the steering wheel of the vehicle; And
Including; a control unit for determining the riding conditions and calculating the compensation scale,
The control unit is configured to control the final output of the MDPS by performing MDPS compensation on the existing MDPS output when the vehicle boarding and disembarkation conditions are satisfied.
The method of claim 1,
The control unit,
A boarding/alighting condition determination unit for determining a boarding/alighting condition; And
MDPS output compensation control device at the time of getting on and off consisting of; a scale calculator that calculates a scale for controlling the final output of the MDPS according to the getting on and off conditions.
The method of claim 1,
The above conditions for getting on and off are:
MDPS output compensation control device for getting on and off, configured to determine at least one of whether the user activates the MDPS compensation function, whether the vehicle is stopped, whether the transmission has switched to the parking mode, and whether the driver's seat door is open.
The method of claim 1,
The MDPS compensation is the MDPS output compensation control device for getting on and off, wherein the final output of the MDPS is configured to have a smaller output than the conventional MDPS output.
The method of claim 1,
In performing the MDPS compensation, the control unit,
MDPS output compensation control device for getting on and off, which is configured to calculate the scale and compensate the calculated scale to the existing MDPS output.
Determining a user's getting on and off conditions;
Calculating a scale when the user's getting on and off condition is satisfied; And
Compensating the calculated scale to the existing MDPS output; MDPS output compensation control method comprising a.
The method of claim 6,
A boarding/alighting condition determination unit for determining a boarding/alighting condition; And
MDPS output compensation control method for getting on and off, comprising; a scale calculating unit that calculates a scale for controlling the output of the MDPS according to the getting on and off conditions.
The method of claim 6,
The above conditions for getting on and off are:
MDPS output compensation control method for getting on and off by considering at least one of whether the user activates the MDPS compensation function, whether the vehicle is stopped, whether the transmission has switched to the parking mode, and whether the driver's seat door is open.
The method of claim 6,
The step of determining the user's getting on and off conditions is:
Determining whether there is an MDPS compensation function activation input; And
When there is an MDPS compensation function activation input, determining a condition for getting on and off the vehicle; MDPS output compensation control method for getting on and off.
The method of claim 9,
If the MDPS compensation function activation input does not exist, the existing MDPS output is applied,
MDPS output compensation control method for compensating the final MDPS output to have an output value lower than that of the existing MDPS output when there is an MDPS compensation function activation input and the vehicle's getting on and off conditions are not satisfied.

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