KR20150028878A - A transmission ratio control device at the inflection section using ecu control and its method of operation - Google Patents

Abstract

The present invention relates to a device for controlling a gear shift ratio in an inflection section using an ECU control and an operating method thereof. More specifically, the present invention relates to a device for controlling a gear shift ratio in an inflection section using an ECU control and an operating method thereof, which are capable of most effectively driving a vehicle through an inflection point by shifting a gear after cancelling an eco-mode according to the driving style information of a driver in the vehicle in the case of driving the vehicle in the eco-mode when identifying the inflection point in front of the route of the vehicle using a high-precision map in a navigation device or a route guidance server and changing the gear shift ratio of the vehicle before the inflection point using the inflection information of the identified inflection point, a vehicle driving mode, and the driving style information. The device comprises: an inflection point extraction part to generate inflection point information corresponding to the inflection point by modeling a road using map data transmitted from the navigation device or the route guidance server; a driving style storage part storing the driving style information; and a gear shift control part to shift the gear on the inflection point according to the inflection point information, wherein the gear shift control part is capable of determining whether the ECU is in the eco-mode or not, and is capable of shifting the gear after canceling the eco-mode according to the driving style information in the driving style storage part when the ECU is in the eco-mode.

Description

TECHNICAL FIELD [0001] The present invention relates to a transmission ratio control device and a method of operating the same,

The present invention relates to an apparatus and method for controlling a speed ratio in an inflection section using an ECU control, and more particularly, to a system and method for controlling an inflection point located in front of a route of a vehicle using a high precision map stored in a navigation or route guidance server, When the vehicle is operated in the eco mode, the eco mode is changed according to the driving propensity information of the driver when the vehicle is operated in the eco mode by changing the speed ratio of the vehicle before the inflection point using the inflection information of the inflection point of the inflection point and the driving propensity information of the vehicle driver. The present invention relates to an apparatus for controlling a speed ratio in a variable section using an ECU control and a method of operating the same.

In general, the navigation device displays the current position of a moving object such as a vehicle on a map displayed on a display screen by using information received from a GPS (Global Positioning System). Such a navigation device is currently mounted on various moving objects such as a ship, an airplane, a vehicle, etc., and is widely used to confirm the current position and moving speed of the moving object or to determine a moving route.

Accordingly, the driver can easily travel to the destination even in a route that is unfamiliar with the help of route guidance of the navigation device. However, such navigation only carries out route guidance according to the route search, and in response thereto, performs general voice guidance on the road situation ahead. That is, guidance on dangerous factors such as a steep curve section ahead is performed, but inflection point guidance for an uphill ramp, a downhill ramp, and a sharp turn section is not performed in the forward direction.

Therefore, the driver runs in a state in which the information about the inflection point located in front of the route is not known. As a result, the speed deceleration or acceleration and the speed ratio control can not be appropriately controlled at the inflection point.

Furthermore, although the method of controlling the vehicle at each inflection point must be different depending on the type of vehicle and the boarding (or loading) state of the riding person (or cargo), there is a problem that only the guidance have.

In the "Eco Driving Indicator" of Korean Patent No. 10-1127443, which is a prior art, data for guiding the operation of the accelerator pedal is stored in advance based on the gradient of the road, and then, based on the gradient located in front of the vehicle, This is a technique to perform guidance on shifting.

This prior art technique has the effect of inducing eco-driving by performing guidance on acceleration or deceleration according to the gradient of the road to perform the gear change guidance before the user enters the uphill or downhill inclination, There is a problem that it is difficult to recognize the number of gears to be shifted or the speed at which the speed should be reduced or accelerated.

In addition, when the vehicle is operated in an eco mode, which is a function added to a vehicle, the shift and acceleration are controlled by an electronic control unit (ECU), so that an operation of accelerating or shifting ahead of the inflection point is controlled by the driver There is a difficult problem.

Further, in the case of entering the uphill slope, the driver can easily ascend the uphill slope using the progressive elasticity by accelerating the vehicle speed. However, when the vehicle is driven in the eco mode, There is a problem that is not easy.

Accordingly, when driving on a road where uphill or downhill inclination is frequent depending on the current state of the domestic road with a mountainous terrain, the driving mode of the eco mode may not be the same as the driving behavior of the driver. In this case, Which is difficult to control.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a navigation system and a communication type navigation system capable of receiving map data through a route providing server, And performs the gear shifting at the inflection point extracted according to the road modeling.

In addition, in the present invention, in controlling the speed ratio determined according to the extracted inflection point, when the vehicle is operated in the eco mode, the eco mode of the ECU is released and then the shift is performed in accordance with the speed ratio, There is another purpose of enabling the vehicle to easily run the inflection point by resetting the eco mode of the ECU.

In addition, the present invention controls the speed ratio determined according to the extracted inflexion point, and controls the driving behavior of the driver so as not to perform or perform gear shifting before the inflection point according to the speed ratio determined using the driving propensity information of the driver There is another purpose to reflect.

According to an aspect of the present invention, there is provided a gear ratio control apparatus for performing a vehicle shift using an ECU control, the system comprising: a road modeling unit configured to perform road modeling using map data received from a navigation or route guidance server to generate inflection point information corresponding to an inflection point And a shift control unit for performing the vehicle shift at the inflection point corresponding to the inflection point information, wherein the shift control unit controls the shift control unit Wherein the control unit determines whether the ECU of the eco mode is an eco mode, and when the eco mode is selected, the eco mode is released according to the driving propensity information of the vehicle driver stored in the operation propensity storage unit, By means of the speed ratio control device in the inflection section using the It is.

It is another object of the present invention to provide a method of operating a transmission ratio control device for controlling vehicle speed change using an ECU control, comprising the steps of: receiving map data from a navigation or route guidance server; A second step of determining whether the state of the running mode is the eco mode in the ECU when the inflection point exists in the first step and the second step of checking whether the eco mode is in the eco mode, A third step of releasing the eco mode, a fourth step of controlling the shifting of the vehicle in accordance with the speed ratio, a fifth step of setting the eco mode released in the third step after passing the shift point, And a sixth step of transmitting the result of shifting control of the fourth step to the navigation system. And the operation method of the control device.

Accordingly, in the navigation apparatus or the communication type navigation system, after receiving the map data through the route providing server, the navigation apparatus and the operation method thereof in the inflection section utilizing the map information of the present invention may be configured so that the curvature, The road modeling is carried out using at least one of the inflation point and the inflection point extracted at the inflection point, so that the vehicle can be easily driven according to the changed road conditions.

In addition, in the present invention, in controlling the speed ratio determined according to the extracted inflection point, when the vehicle is operated in the eco mode, the eco mode of the ECU is released and then the shift is performed in accordance with the speed ratio, The eco mode of the ECU is set again so that the vehicle can easily run the inflection point.

In addition, the present invention controls the speed ratio determined according to the extracted inflexion point, and controls the driving behavior of the driver so as not to perform or perform gear shifting before the inflection point according to the speed ratio determined using the driving propensity information of the driver So that the driving environment of the driver can be kept as natural as possible.

FIG. 1 is a block diagram of a shift control apparatus according to an embodiment of the present invention. FIG.
2 is a block diagram illustrating a shift control apparatus according to another embodiment of the present invention.
3 is a flowchart illustrating a method of operating a shift control device according to the present invention.
4 is an exemplary view of a navigation screen for indicating an inflection point used in the shift control apparatus according to the present invention.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and the inventor may appropriately define the concept of the term in order to best describe its invention It should be construed as meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

Hereinafter, preferred embodiments of the present invention will be described in detail.

FIG. 1 is a block diagram showing a shift control device according to an embodiment of the present invention. FIG. 2 is a block diagram showing a shift control device according to another embodiment of the present invention. 1 and 2, the navigation device 100 of FIG. 1 may download the map data or the like from the route guidance server 300 and then perform route guidance without connection with the route guidance server 300 The navigation device 100 of FIG. 2 can perform route guidance while being received in real time from the route guidance server 300 connected with communication of map data or the like. That is, the latter navigation device 100 may be referred to as a communication type navigation 100 (hereinafter, referred to as 'communication type navigation').

1 includes a map data storage unit 120 for storing map data, a navigation controller 110 for searching for a route according to a driver's request and performing route guidance, A map data transmission unit 130 for transmitting map data to the device 200; a control result reception unit 140 for receiving a shift control result performed by the shift control device 200; and a display for outputting the received control result (150).

The navigation control unit 110 controls general navigation, performs route search and route guidance, extracts part of the map data currently running from the map data stored in the map data storage unit 120 as needed, And transmits the map data to the map data receiving unit 220 of the shift control device 200.

The navigation control unit 110 receives the control result obtained by shifting the gear of the vehicle from the shift control device 200 through the control result transmitting unit 250 of the shift control device 200 at the control result receiving unit 140, And transmits the control result to the display unit 150 so as to be output.

The communication type navigation device 100 shown in FIG. 2 includes a map data storage unit 310 in which a route guidance server 300 that guides a route of a vehicle stores map data, Extracts the partial map data located in the front of the route from the map data and transmits the extracted partial map data to the map data receiving unit 220 of the shift control device 200 through the map data transmission unit 320.

The control result of shifting the gear of the vehicle from the shift control device 200 is transmitted to the control result receiving unit 140 of the communication type navigation device 100 through the control result transmission unit 250 of the shift control device 200 , The navigation control unit 110 of the communication type navigation device 100 transmits the received control result to the display unit 150 so as to be output.

1, the navigation device 100 can be classified into a general navigation device that stores map data in the navigation device and a communication type navigation device that is stored in the route guidance server 300, Depending on the type of the device 100, the subject to which the map data is transmitted may be different.

The shift control device 200 receives the map data from the map data transmission units 130 and 320 provided in the route guidance server 300 in the case of the navigation device 100 or the communication type navigation device 100, An inflection point extracting unit 230 for extracting an inflection point from the received map data and a shift control unit 210 for controlling the speed ratio of the vehicle in accordance with the inflection point And a control result transmission unit 250 for transmitting a control result of controlling the speed ratio of the vehicle at the shift control unit 210 to the navigation device 100. [ In addition, the shift control device 200 includes an operation propensity storage unit 240 that stores information on the propensity of a driver to operate the vehicle.

The map data receiving unit 220 receives map data existing on the route of the vehicle through the map data transmitting unit 130 of the navigation device 100 or the map data transmitting unit 320 of the route guidance server 300.

The map data may be global map data existing on the route of the vehicle, or may be partial map data corresponding to a predetermined radius corresponding to the current position of the vehicle. Therefore, the map data receiving unit 220 transmits the map data to the inflection point extracting unit 230 whenever it receives one or more map data.

The inflection point extracting unit 230 extracts an inflection point using the map data received from the map data receiving unit 220. [ That is, the inflection point extracting unit 230 extracts an inflection point from at least one of the curvature, the gradient, and the altitude of each road through the road modeling of the map data, extracts the inflection point through the extracted road property, .

Therefore, the inflection point information corresponding to the extracted inflection point includes the position of the inflection point, the rotation angle of the road linear, the radius of rotation, the angle of the uphill or downhill inclination, the width of the road (number of lanes), the speed limit, (Length of uphill or downhill), and the like.

For example, among the various inflection points, the rotation period is a speed that is lower than the straight road passing speed because the vehicle is likely to slip or overturn due to the centrifugal force that the vehicle advances and rotates when the vehicle enters a certain speed or more. It is safe to pass.

In addition, since the output of the vehicle is lowered at the ascending slope, it is possible to advance the speed up in advance and to allow the vehicle to go uphill flexibly. In the descending slope, acceleration occurs due to the weight of the vehicle. do.

In addition, curved roads can cause vehicle overtaking due to the weight of the vehicle, which may cause vehicle overturning or falling cargo, so that sufficient deceleration can be achieved to prevent such accidents in advance.

The transmission control unit 210 receives the inflection point information of the inflection point extractor 230, generates a gear ratio control value for the inflection point, and performs gear shifting using the generated speed ratio control value.

That is, the inflection point information includes the position corresponding to the inflection point, the rotation angle of the road line, the radius of the turn, the angle of the uphill or downhill inclination, the width of the road (the number of lanes), the speed limit, And the like).

Therefore, the transmission control section 210 determines the gear ratio according to the conditions of the rotation of the inflection point, the ascending slope, the downward slope, and the like and controls the shifting.

For example, if there is a rotation section set at a speed limit of 100 km / h in front of the path, there is a probability that the vehicle will deviate or turn over depending on the rotation angle and the turning radius of the rotation section. The speed ratio for decelerating the speed can be set.

That is, in the case of a vehicle traveling on the fifth gear of the vehicle for high-speed travel, the gear of the vehicle can be controlled to the fourth or third gear for 30% deceleration, thereby decelerating the vehicle.

The speed ratio can be controlled differently according to the inflection point information, and the speed ratio control can be performed by additionally using the weather information generated according to the road condition by the snow or rain.

Also, the transmission control unit 210 is connected to an ECU provided in the vehicle, and can confirm the running mode of the vehicle that is currently running. Recently, according to the vehicle control technology, the ECU of the vehicle is classified into the general mode, the eco mode, and the sports mode according to the driving style. The ECU is classified into the rain or snowy driving mode, The transmission and suspension are individually controlled to provide the optimum operating environment.

If the current driving mode of the vehicle is the eco mode, the ECU can limit the rapid acceleration of the vehicle even if the driver steps on the accelerator for rapid acceleration, thereby enabling economical operation. Therefore, when the shift control unit 210 attempts to perform the gear shift according to the inflection point, the shift control unit 210 can not perform the shift control when the running mode of the ECU is the eco mode. , It can be connected to the ECU to confirm the current driving mode of the vehicle.

If the current driving mode of the vehicle is the eco mode, the shift control unit 210 extracts the driving propensity information of the vehicle driver stored in the driving propensity storage unit 240, Mode or the echo mode is maintained.

Therefore, the driving propensity information stored in the driving propensity storage unit 240 stores driving habits passing through respective inflection points as information on the driving style of the vehicle driver.

That is, when the vehicle travels on an ascending slope road, the vehicle speed is accelerated prior to the ascending slope so that the vehicle passes the inflection point with the accelerated elasticity, travels at a constant speed without changing the vehicle speed before the ascending slope, And the vehicle travels in a state of decelerating according to the degree of inclination.

Such driving propensity information may store cumulative driving propensity for a specific period of time and accumulate and store the driving propensity that is currently running from a specific point in time.

For example, in the case where the driving propensity at the inflection point, which is the uphill inclination of the driver's driving behavior information of the driver, makes a shift and enters the inflection point after acceleration, the transmission control unit 210 performs the shift according to the determined speed ratio and passes the inflection point However, in the case of entering the inflection point without performing the shifting at the inflection point which is an ascending slope, the transmission control unit 210 can control the transmission control unit 210 to pass the inflection point without performing the shift according to the determined transmission gear ratio.

On the other hand, the operational propensity information stored in the operational propensity storage unit 240 may store the operational propensity for each inflection point, and may store the propensity to drive according to the inflection point type rotation period, slope interval, and danger interval. At this time, the rotation section corresponds to the linear shape of the road and the slope section corresponds to the slope of the gradient of the road up or down, and the danger section corresponds to the deceleration section such as toll gate, construction, child protection area, and the like.

Accordingly, when the driving propensity of the vehicle driver does not correspond to the eco mode according to the extracted driving propensity information, the transmission control unit 210 releases the eco mode and performs gear shifting according to the inflection point.

On the other hand, after the vehicle has passed through the inflection point in accordance with the gear shift, the ECU sets the canceled eco mode again.

The control result transmission unit 250 transmits the control result according to the shift control result performed by the shift control unit 210 to the control result receiving unit 140 of the navigation device 100. [

3 is a flowchart illustrating a method of operating a shift control device according to the present invention. 3, the shift control device 200 receives map data corresponding to the route of the vehicle from the navigation device 100 or the route guidance server 300 (S110). The received map data may be map data for the entire path, or may be map data for some segments.

Thereafter, the shift control device 200 performs road modeling using the received map data, extracts inflection points from at least one of road curvature, gradient, and altitude, and generates corresponding inflection point information (S120).

If there is an inflection point in the map data (S130), the shift control device 200 extracts a speed ratio corresponding to the inflection point using the inflection point information (S140), and if the current traveling mode of the vehicle is the eco mode (S150).

If it is determined in step S150 that the current driving mode of the vehicle is the eco mode, the eco mode can be released or maintained according to the driving propensity information of the driver stored in the driving propensity storage unit 240 in step S160.

When the eco mode is released according to the driving tendency of the vehicle driver in step S160, the shift control is performed using the determined speed ratio (S170). If the eco mode is maintained according to the driving tendency of the vehicle driver in step S160, And terminates without performing control.

On the other hand, if it is determined in step S150 that the current driving mode of the vehicle is not the eco mode, the process proceeds to step S170 to perform the shifting according to the speed ratio.

Thereafter, when the vehicle passes the inflection point, the shift control unit 210 resets the canceled echo mode of the ECU (S180), transmits the transmission ratio control result to the navigation device before the vehicle shift is performed or performed, (S190).

4 is an exemplary view of a navigation screen for indicating an inflection point used in the shift control apparatus according to the present invention. As shown in FIG. 4, the inflection point may include rotation sections a and b, a speed deceleration section c, and the like, which are present on the path.

In the case of the rotation section (a), when the direction is changed in the section of the turn-by-turn (TBT), the shifting must be performed because the rotation can not be performed at the speed that has been advanced straight. In the case of the rotation section (a), various speeds can be matched according to the information such as the radius of the rotation section, the rotation angle, and the like.

On the other hand, in the case of the rotation section (b), the number of rotation angles and the rotation radius of the rotation section is grasped in advance as the entry / exit section of the highway, and if the continuous rotation occurs, the decelerated transmission ratio is maintained in the first rotation section can do.

In the case of the speed deceleration period (c), the highway toll gate section is used. In the case of using the high path, the deceleration must be performed at the corresponding speed, so that the shifting can be performed at the corresponding speed ratio.

Although not shown in the drawing, the shift control is also performed in the ascending slope, downhill slope, various rotation sections, etc., so that the vehicle can easily travel at the inflection point.

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 taken by way of limitation, Various changes and modifications will be possible.

100: navigation device 110: navigation control unit
120, 310: map data storage unit 130, 320: map data transmission unit
140: control result receiving unit 150:
200: shift control device 210: shift control part
220: map data receiving unit 230: inflection point extracting unit
240: Operation propensity storage section 250: Control result transmission section
300: Path guide server

Claims (10)

A transmission ratio control device for performing a vehicle shift using an ECU control,
An inflection point extracting unit for performing road modeling using the received map data from the navigation or route guidance server to generate inflection point information corresponding to the inflection point;
A driving propensity storage section for storing driving propensity information of the vehicle driver; And
A shift control unit for performing the vehicle shift at the inflection point corresponding to the inflection point information,
Wherein the shift control unit determines whether the ECU of the vehicle is in the eco mode and releases the eco mode according to the driving propensity information of the vehicle driver stored in the operation propensity storage when the eco mode is selected And the vehicle speed change is performed by the ECU.
The method according to claim 1,
A GPS unit for determining a current position of the vehicle;
A map data receiving unit for receiving the map data from the navigation or the route guidance server; And
A control result transmitter for transmitting a control result according to the vehicle speed change to navigation;
Further comprising an ECU for controlling the speed ratio of the vehicle.
The method according to claim 1,
Wherein the driving propensity information is a cumulative driving tendency in which the driver of the vehicle passes the inflection point in the previous route guidance or a cumulative driving tendency in which when the inflection point is matched with the inflection point of any of the rotation section, And the driving tendency of the vehicle.
The method according to claim 1,
Wherein the road modeling extracts a road attribute of at least one of a curvature, a gradient, and an altitude of a road included in a route train corresponding to a traveling direction of the vehicle in the map data. Device.
3. The method of claim 2,
Wherein the vehicle speed change is performed before the inflection point in accordance with the position of the vehicle measured by the GPS unit.
A method of operating a transmission ratio control apparatus for controlling a vehicle shift by using an ECU control,
A first step of receiving map data from a navigation or route guidance server and extracting an inflection point using road modeling of the received map data;
A second step of checking whether the ECU is in the eco mode when the inflection point exists in the first step;
A third step of releasing the eco mode in response to the stored driving propensity information in the eco mode;
A fourth step of controlling the shift of the vehicle according to the speed ratio;
A fifth step of setting the eco mode released in the third step after passing the shift point; And
A sixth step of transmitting the shift control result of the fourth step to the navigation system
And a control unit for controlling the speed ratio of the vehicle.
The method according to claim 6,
Wherein the fourth step is performed when the state of the traveling mode is not the eco mode in the second step.
The method according to claim 6,
The driving propensity information indicates whether the cumulative driving propensity of the driver who has passed the inflection point in the previous route guidance or the inflection point matches the inflection point of any of the rotation section, the slope section and the danger section, And a cumulative operating tendency to pass through the inflection point. The method of operating the transmission ratio control device in the inflection section using the ECU control method.
The method according to claim 6,
Wherein the road modeling extracts a road attribute of at least one of a curvature, a gradient, and an altitude of a road included in a route train corresponding to a traveling direction of the vehicle in the map data. Operating method of the apparatus.
The method according to claim 6,
Wherein the control of the shifting of the vehicle in the fourth step is performed before the inflection point by the positional information of the vehicle received from the GPS unit.

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