JP6250371B2 - Program and operation curve creation device - Google Patents

Description

  The present invention relates to a program for causing a computer to create an operation curve.

  Conventionally, an apparatus for creating an operation curve using a computer is known. The driving curve created by the conventional driving curve creating device is created so that the running time is the shortest within the range of the train capacity while keeping the speed limit defined on the track. In recent years, an apparatus having a function of correcting a created operation curve is also known. For example, in Patent Document 1, when there is a margin in traveling time between stations, a driving curve that creates a new driving curve in which the power consumption required for driving is reduced by correcting the generated driving curve. A creation device is disclosed.

Japanese Patent No. 3881302

  The technique of the above-mentioned patent document 1 implement | achieves reduction of power consumption by using addition of coasting as correction of an operating curve. However, other methods are conceivable for correcting the operation curve so as to reduce the power consumption. For example, the driving curve is usually created to run using the maximum notch for both power running and braking so that the running time is the shortest, but the instantaneous regenerative power is reduced by changing the brake notch to be smaller. However, as a result of the long regenerative braking time, it is possible to increase the amount of power to be regenerated and reduce the amount of power consumption. Further, passenger comfort can be improved by not using the maximum notch.

  This invention is made | formed in view of the said situation, The place made into the objective is to implement | achieve the new preparation method of a driving curve.

The first invention for solving the above-described problems is
A program for causing a computer to create a driving curve on a two-axis coordinate system of traveling position and traveling speed,
An end point of a stop brake curve portion of a given driving curve created so as to satisfy a predetermined speed constraint, and a speed limit included in the speed constraint of the given driving curve An end point selection means for selecting one or more end points from the end points of the brake curve portion immediately before the location;
Extending the speed curve in the reverse direction from the end point when the brake force smaller than the brake force of the brake curve portion related to the end point selected by the end point selecting means is continued and the end point is reached. Reverse curve creation means to create a reverse curve with
An operation curve updating unit that performs a first update to update the given operation curve so as to pass the end point along the reverse curve of the end point selected by the end point selection unit;
As a program for causing the computer to function.

As another invention,
An end point of a stop brake curve portion of a given driving curve created so as to satisfy a predetermined speed constraint condition on a two-axis coordinate system of a running position and a running speed, and the given driving An end point selecting means for selecting one or more end points from among the end points of the brake curve portion immediately before the speed limit portion included in the speed constraint condition of the curve;
Extending the speed curve in the reverse direction from the end point when the brake force smaller than the brake force of the brake curve portion related to the end point selected by the end point selecting means is continued and the end point is reached. A reverse curve creation means for creating a reverse curve with
An operation curve updating means for performing a first update for updating the given operation curve so as to pass through the end point along a reverse curve related to the end point selected by the end point selecting means;
You may comprise the operating curve preparation apparatus provided with.

  According to the first aspect of the present invention, the driving curve can be updated so that the braking curve portion of a given driving curve has a braking force smaller than the braking force. Specifically, a braking force smaller than the braking force of the brake curve portion related to one or more selected end points among the end point of the stop brake curve portion and the end point of the immediately preceding brake curve portion of the driving curve is set. A reverse curve is generated by extending the speed curve in the case of reaching the end point in the reverse direction from the end point, and passing the end point along the generated reverse pull curve, The running curve is updated. This makes it possible to realize a new operation curve creation method that is different from the conventional method of creating an operation curve using the maximum notch.

As a second invention, there is provided a program according to the first invention,
The end point selection means selects a plurality of combinations of the end points,
The driving curve update means generates a new driving curve candidate by performing the first update for each of the combinations,
For each new driving curve candidate generated by the driving curve updating means, a power consumption calculating means for calculating the power consumption,
Among the calculated power consumption amounts, the best operation curve selection means for selecting the minimum operation curve candidate as the best operation curve,
A program for further functioning the computer may be configured.

  According to the second aspect of the present invention, an operation curve that is changed so as to reduce the braking force of the brake curve portion is created for a given operation curve. That is, for each of a plurality of combinations of the end points of the brake curve portion, a new driving curve candidate is generated by updating the brake force to be small, and among each of the generated new driving curve candidates, the power consumption amount The candidate with the smallest running curve is selected as the best running curve.

As a third invention, there is provided a program according to the second invention,
The reverse curve creating means creates a plurality of reverse curves by changing the braking force for each end point selected by the end point selecting means,
The driving curve update means generates a plurality of driving curve candidates by performing the first update using a reverse curve in which the braking force is changed for each of the combinations.
A program may be configured.

  According to the third aspect of the invention, a new driving curve candidate is generated by generating a plurality of reverse pulling curves by changing the braking force for each end point of the brake curve portion, and for each of a plurality of combinations of end points. This is done by updating using the generated reverse curve.

A fourth invention is a program according to any one of the first to third inventions,
The driving curve update means performs a second update to update the driving curve by performing a predetermined coasting increase process for increasing coasting in conjunction with the first update.
A program may be configured.

  According to the fourth aspect of the invention, the driving curve is updated by performing the predetermined coasting increasing process for increasing coasting in conjunction with the first update for reducing the braking force of the brake curve portion. Thereby, the update of the operation curve that further reduces the power consumption is realized.

A fifth invention is a program according to any one of the first to fourth inventions,
Further causing the computer to function as a designation means for designating a specified running time allowed beyond the running time of the given driving curve;
The operation curve update means updates the operation curve within the range of the specified travel time.
A program may be configured.

  According to the fifth aspect of the invention, the driving curve is updated within the range of the designated traveling time that is allowed beyond the traveling time of the given driving curve. That is, it is possible to set a limit on the travel time of the updated driving curve.

An example of an operation curve. The outline figure of the update of the operation curve based on reverse operation specification. The schematic diagram of the update of the driving | running curve based on several reverse pulling driving | operation designation | designated. An example of brake notch change. Explanatory drawing of reduction of the power consumption by change of a brake notch. Explanatory drawing of the production | generation of a reverse curve. Explanatory drawing of creation of a driving curve candidate by changing a brake notch. An example of increased lameness. Explanatory drawing of reduction of the power consumption by the increase of lameness. Explanatory drawing of the setting of an area. Explanatory drawing of preparation of the provisional driving curve candidate by the increase in coasting. Explanatory drawing of the correction | amendment of the driving curve accompanying the increase in coasting. Explanatory drawing of the correction | amendment of the driving curve accompanying the increase in coasting. Explanatory drawing of the production | generation of a reverse curve. The function block diagram of a driving curve creation apparatus. Explanatory drawing of adjustment of lameness. Data configuration example of data for energy saving operation curve creation. The flowchart of an operation curve creation process. The continuation of the flowchart of FIG.

[Overview]
The operation curve creation device of the present embodiment corrects a given operation curve and creates an operation curve (energy saving operation curve) with less (small) power consumption. The power consumption amount of the operation curve is calculated as the difference between the power running energy amount and the regenerative power amount when traveling according to the operation curve.

(A) Driving curve The driving curve is generated, for example, as a unit between stations as shown in FIG. 1, on the coordinate system with the horizontal axis representing the travel position (distance expressed in kilometers) and the vertical axis representing the travel speed. Is expressed as a graph showing the speed change with respect to the train position. In addition, the driving curve is created so that the train performance is maximized while maintaining the specified speed limit (that is, the maximum notch is used for both power running and braking) and the train runs between stations in the shortest time. It is common. In the example shown in FIG. 1, “5 notches” that are the maximum notches are used for both power running and braking. Such a “method of creating an operation curve that travels while maximizing the performance of a train while maintaining a predetermined speed limit” is particularly referred to as a “basic creation method” in the present embodiment. The brake notch has a larger braking force as the number of notches is larger.

(B) Reverse pull operation designation One of the correction methods for the operation curve is reverse pull operation designation. In this reverse pulling operation specification, if “position, speed, driving operation (driving method (powering / coasting / brake) and notch)” is specified, the specified position is passed at the specified speed and the specified driving operation based on this. The driving curve is updated.

  FIG. 2 is an example of updating the operation curve by specifying reverse pulling operation. FIG. 2A shows an example of the reverse operation specification for the operation curve, and FIG. 2B shows the operation curve after the change based on the reverse operation specification. As shown in FIG. 2A, the position “L1”, the speed “V1”, and the driving operation “three-notch brake” are specified as the reverse pulling operation specification for the driving curve. Then, as shown in FIG. 2B, on the basis of this reverse pulling operation designation, the operation curve is changed so that the designated position L1 is passed at the designated speed V1 with the 3-notch brake which is the designated operation operation. Is done.

  Specifically, the operation curve is changed based on the reverse pulling operation designation as follows. First, the designated coordinate point 10 corresponding to the designated position “L1” and the designated speed “V1” is passed from the designated coordinate point 10 in the reverse direction of the traveling direction (by the “three-notch brake”) (the designated driving operation). A reverse curve 11 extending in the direction toward the departure station) is generated. Next, the driving curve is updated so that the vehicle travels along the reverse pulling curve 11 in the section from the intersection 12 of the driving curve and the reverse pulling curve 11 to the designated position “L1”. For the section after the designated position “L1”, the running curve is updated by the basic creation method.

  A plurality of reverse pulling operation designations can be applied to one operation curve. In this case, as shown in FIG. 3, a reverse curve corresponding to each of the plurality of reverse pulling operation designations is generated, and in the order of crossing when traveling along the driving curve from the travel start position (departure station), The driving curve is updated according to the crossed reverse pulling curve. That is, first, the reverse curve that first intersects with the operation curve is applied to update the operation curve, and then the reverse curve that first intersects the operation curve after the designated position of the applied reverse curve similarly. The process of updating by applying a curve is repeated until the vehicle arrives at the travel end position (arrival station).

  In the example shown in FIG. 3, two reverse driving operations of position “L2”, speed “V2”, driving operation “3-notch brake”, position “L3”, speed “V3”, and driving operation “coasting” are performed. Designations (A) and (B) are made. Then, two reverse pulling curves 11a and 11b corresponding to the two reverse pulling operation designations (A) and (B) are generated. In this case, first, the reverse curve 11b that first intersects the driving curve is applied to update the driving curve to the designated position L3, and the section after the designated position L3 is updated by the basic creation method. Subsequently, among the updated operating curves, the operating curves after the designated position L3 are not updated because they do not intersect with the reverse curve 11a. That is, in the example of FIG. 3, the reverse operation specification (A) is invalid, and the operation curve is updated by applying only the reverse operation specification (B).

(C) Reduction of power consumption In this embodiment, two types of driving operation changes, (1) change of brake notch and (2) increase of coasting, are performed as correction of the driving curve to reduce power consumption. Is used.

(C-1) Brake Notch Change FIG. 4 is a schematic diagram of the brake notch change. As shown in FIG. 4, with respect to the brake curve portion 13a in the operation curve to be corrected (target operation curve), the operation curve is changed by changing the brake notch while the end point 14 is fixed. FIG. 4 shows an example in which the brake curve portion 13a of “brake 5 notch” is changed to the brake curve portion 13b of “brake 4 notch” and the brake curve portion 13c of “brake 3 notch”. By changing the brake notch, increase or decrease in regenerative power can be expected, and as a result, there is a possibility of reduction in power consumption.

  FIG. 5 is a diagram showing an outline of power consumption reduction by changing the brake notch. As shown in FIG. 5, the brake curve portion to be changed is selected from the target driving curve. Next, for each of these brake curve portions, a plurality of driving curve candidates are generated for each combination of change candidate brake notches. In addition, it is good also as including the brake notch before a change in the brake notch of a change candidate. Since the driving curve is generated so as to travel with the maximum notch, the brake notch that is a candidate for change is a notch less than this. Then, among these operation curve candidates, the one with the minimum power consumption is defined as an energy saving operation curve.

  In the example shown in FIG. 5, two brake curve portions 15 and 16 are selected as change targets from the target operation curve, and both brake notches are “5 notches”. In this case, each of the two brake curve portions 15 and 16 has a total of three types of brake notches, “5 notch” which is a brake notch before change and “4 notches and 3 notches” which are brake notches of conversion candidates. A total of nine driving curve candidates that have been changed to are generated.

  The operation curve is changed by changing the brake notch in detail as follows. First, as shown in FIG. 6, the stop brake curve and the speed limit brake curve are selected as the change target brake curve portion 17 from the target operation curve. The stop brake curve is a brake curve for arriving at the arrival station, and the speed limit brake is a brake curve for decelerating to the limit speed immediately before the speed limit section. In the example shown in FIG. 6, four brake curve portions 17a to 17d are selected as the change targets. The brake curve portions 17a to 17c are speed limit brake curves, and the brake curve portion 17d is a stop brake curve.

  Next, for each selected brake curve portion 17, reverse pulling operation designation for the brake end point 18 is performed, and the target operation curve is changed. That is, for each brake end point 18, the reverse pulling operation designation is performed with the position and speed of the end point 18 as the designated position and designated speed, and “brake of the change candidate brake notch” as the designated driving operation. A reverse curve 19 is generated that extends from the travel end point in the reverse direction of the traveling direction (the direction toward the departure station) so that the vehicle passes through the “change candidate brake notch brake”. Then, based on the reverse curve 19, the operation curve is updated and operation curve candidates are generated.

  In the example of FIG. 6, reverse pulling operation curves are designated for the brake end points 18a to 18d of the brake curve portions 17a to 17d, and corresponding reverse pulling curves 19a to 19d are generated. Then, as shown in FIG. 7, a driving curve candidate in which the driving curve is updated is generated based on the reverse pulling curves 19a, 19b, and 19d corresponding to the brake end points 18a, 18b, and 18d, respectively. Note that the brake end point 18c is invalid because the corresponding reverse pulling curve 19c does not intersect the driving curve.

(C-2) Increase in coasting FIG. 8 is a schematic diagram of coasting increase. As shown in FIG. 8, the driving curve is changed so as to increase coasting travel for the coasting curve portion between the power running and the brake in the target driving curve. Increased coasting reduces power running and power consumption.

  FIG. 9 is an explanatory diagram of a reduction in power consumption due to an increase in coasting. As shown in FIG. 9, the coasting curve portion to be changed is selected from the target driving curve. For each selected coasting curve portion, a plurality of driving curve candidates are generated by increasing the coasting travel distance. Among these generated operation curve candidates, the one with the highest improvement efficiency with respect to the target operation curve is defined as an energy saving operation curve. In the example shown in FIG. 9, two coasting curve portions 20 and 21 are selected from the target driving curve, and a total of two driving curve candidates are changed so as to increase the coasting distance of each coasting curve portion 20 and 21. Has been generated.

  The improvement efficiency R is determined by the ratio between the increase amount ΔW of the power consumption amount of the driving curve candidate with respect to the target driving curve and the increase amount Δt for the running time (R = −ΔW / Δt). Although it is difficult to understand because it has a negative (minus) sign in the formula, it can be said that “−ΔW” is a reduction in power consumption. Therefore, it can be said that the improvement efficiency R is an index value indicating how much the power consumption is reduced per unit increase amount during traveling with respect to the target driving curve. The increase amount ΔW of the power consumption amount is a difference between the power consumption amount W0 of the target operation curve and the power consumption amount W of the operation curve candidate (ΔW = W−W0), and the increase amount Δt for the running time is the target This is the difference between the running time t0 of the running curve and the running time t of the running curve candidate (Δt = t−t0). As described above, when coasting is increased with respect to the driving curve, the running time increases. For this reason, the decrease amount “−ΔW” of the power consumption amount is large and the increase amount Δt during traveling is small, that is, the improvement efficiency R is a positive value and large, the efficiency “ It can be regarded as a driving curve candidate with a “good” change.

  In detail, the operation curve is changed by increasing coasting as follows. First, as shown in FIG. 10, a section is set in the target operation curve. The section is generated so that the starting point of power running is the start point and the brake end point 22 is the end point. Here, the target brake end point 22 is the stop brake or speed limit brake end point. Further, the section is set so that the travel start point (departure station) is the start point of the first section and the travel end point is the end point of the last section. That is, from the starting point of power running to the next brake end point 22 is set as one section. However, if there is no power running between the next brake end point 22 and the next brake end point 22, the next brake end point 22 is defined as one section.

  Subsequently, the coasting curve portion to be changed is selected for each section. That is, as shown in FIG. 11, in each section, the coasting 25 between the power running 23 closest to the end point of the section and the brake 24 closest to the running direction (end point side) from the power running 23 It is targeted for change. Then, for each section, the coasting 25 to be changed is changed to add coasting traveling of a predetermined distance, and a driving curve candidate is generated.

  In this way, the driving curve is changed to add coasting between power running and braking, but if the changed driving curve shape is as follows, further correction of the driving curve is required. Do.

  Specifically, as shown in FIG. 12, when the traveling distance of the powering 23 in front is shorter than a predetermined threshold distance, the powering 23 is deleted and the starting point 23a of the powering 23 is passed. In addition, a correction for adding the travel distance of coasting 25 is performed.

  Also, as shown in FIG. 13A, when the travel distance of the rear brake 24 becomes shorter than a predetermined threshold distance, the brake 24 is deleted and the end point 24a of the brake 24 is passed. In addition, a correction for adding the travel distance of coasting 25 is performed.

  At this time, as shown in FIG. 13B, when the speed of the coasting 25 becomes lower than the speed of the end point 24a of the rear brake 24, the starting point of the next section (that is, the starting point 28a of the powering 28). The travel distance of the coasting 25 is corrected to be added until it intersects with the reverse curve 29 generated in (1). Then, the points after the intersection 30 between the coasting 25 and the reverse curve 29 are corrected according to the reverse curve 29.

  As shown in FIG. 14, the reverse curve 29 in FIG. 13B is a curve that is generated by specifying reverse operation for the start point of each section (that is, the starting point of powering). That is, for each of the sections (sections 2 and 3) excluding the first section (section 1), the starting point of the section, that is, the position and speed of the starting point 31a of the power running 31 are set as the designated position and designated speed, and “the power running 31 The reverse pulling curve 32 extended from the starting point 31a of the power running 31 in the direction opposite to the traveling direction (the direction toward the departure station) is generated by performing the reverse pulling operation designation with the designated notch power running as the designated driving operation. Is done.

  In FIG. 14, for example, as a result of adding coasting between the power running and the brake in the section 2, the power running curve portion is deleted as shown in FIG. 12, and the added coasting is in front of the section 2 (departure station side). When integrated with the lame portion, the processing of the subsequent section 2 may be performed as follows. That is, a section obtained by integrating section 1, integrated lameness, and section 2 is regarded as “section 2” and subsequent processing is performed.

[Function configuration]
FIG. 15 is a configuration diagram of the operation curve creation device 1. According to FIG. 15, the running curve creation device 1 includes an operation input unit 110, a display unit 120, a communication unit 130, a processing unit 200, and a storage unit 300.

  The operation input unit 110 is an input device including, for example, a keyboard, a mouse, a touch panel, various switches, and the like, and outputs an operation signal corresponding to a user operation input to the processing unit 200. The display unit 120 is a display device configured by, for example, a liquid crystal display (LCD) or an organic EL display, and performs various displays based on display signals from the processing unit 200. The communication unit 130 is a communication device including, for example, a wireless communication module, a router, a modem, a wired communication cable jack, a control circuit, and the like, and performs data communication with an external device.

  The processing unit 200 is configured by an arithmetic device such as a CPU, for example, and performs various arithmetic processing based on programs and data stored in the storage unit 300, input data from the operation input unit 110, and the like, and the operation curve generating device 1 Instructions and data transfer to each unit constituting the. The processing unit 200 includes a basic operation curve creation unit 210, a creation condition setting unit 220, and an energy saving operation curve creation unit 230, and an operation curve creation process according to the operation curve creation program 310 (FIG. 18 to FIG. 18). 19).

  In the driving curve creation process, multiple driving curve candidates are created by changing the brake notch to the basic driving curve, and the coasting is added to each of these driving curve candidates to improve the improvement efficiency. The driving curve candidate is corrected to Then, among the plurality of operation curve candidates, the one with the smallest power consumption is set as the energy saving operation curve with respect to the basic operation curve.

  The basic operation curve creation unit 210 creates an operation curve (basic operation curve) for traveling between target stations in the shortest travel time by a basic creation method based on the track conditions and train conditions. The track condition is a track condition such as track length, gradient, curvature, maximum speed between stations, and speed limit section, and is stored as track condition data 320. The vehicle condition is a condition related to the performance of the train such as assumed acceleration, maximum speed, deceleration, and weight of the train, and is stored as the train condition data 330. The created basic operation curve is stored as basic operation curve data 340.

  The creation condition setting unit 220 sets a creation condition for creating an energy saving operation curve by changing the basic operation curve in accordance with a user instruction operation via the operation input unit 110. The creation conditions include the brake notch of the change candidate when changing the brake notch, the coasting travel distance (additional coasting travel distance) added when the coasting change is added, and the energy saving operation curve And an upper limit for running time. The set creation condition is stored as creation condition setting data 360.

  The energy saving operation curve creation unit 230 includes an end point extraction unit 232, an operation curve candidate creation unit 234, a coasting adjustment unit 236, a power consumption improvement unit 240, and an improvement efficiency calculation unit 248, and setting creation conditions The basic operation curve created by the basic operation curve creation unit 210 is changed so as to satisfy the creation conditions set by the unit 220, and an energy saving operation curve is created. The created energy saving operation curve is stored as energy saving operation curve data 380.

  The end point extraction unit 232 extracts the end points of the stop brake curve portion and the speed limit brake curve portion from the basic operation curve as brake end points. The extracted brake end points are stored as a brake end point list 350.

  The driving curve candidate creation unit 234 creates a driving curve candidate by changing the brake notch of the brake curve portion applied to each of the extracted brake end points with respect to the basic driving curve. Specifically, a combination of brake notches to be applied to each brake curve portion related to the extracted brake end point is generated, and a driving curve candidate corresponding to each of the combinations is generated. Specifically, the driving curve candidate travels with “brake at the brake notch of the change candidate to be applied” so as to extend in the direction opposite to the traveling direction (direction toward the traveling start point) for each brake end point. A reverse curve that reaches the brake end point is generated, and the basic operation curve is changed based on the generated reverse curve.

  The coasting adjustment unit 236 performs updating so as to adjust coasting traveling for each driving curve candidate. Specifically, coasting immediately before the brake related to each brake end point is selected as an adjustment target from the driving curve candidates. Then, when the traveling time of coasting selected as the adjustment target is shorter than the predetermined time, coasting is added and the coasting traveling time is changed to be equal to or longer than the predetermined time.

  For example, as shown in FIG. 16 (a), if the front side of the coasting 34 to be adjusted is the brake 35, the end point 35a of the front brake 35 is changed to move in the direction opposite to the traveling direction. , Increase the travel distance of coasting 34. Further, as shown in FIG. 16B, if the coasting 34 to be adjusted is the power running 36, the power running 36 and the brake 33 are changed so as to reduce the running time of the coasting 34. Increase mileage.

  As described above, the driving curve candidate is created by changing the brake notch with respect to the basic driving curve. In particular, when the brake notch is changed so as to be lowered, the travel time of the brake becomes longer, and as a result, the coasting immediately before the brake may be shortened. For this reason, it is possible to create a driving curve that is easy for the driver to drive by adjusting the coasting traveling by the coasting adjustment unit 236 so that the coasting with a short traveling distance is lengthened.

  The power consumption improvement unit 240 includes a section setting unit 242, a reverse curve generation unit 244, and a provisional driving curve candidate creation unit 246. For each driving curve candidate, by adding coasting travel, consumption Update to improve power consumption.

  The section setting unit 242 sets a section with the starting point of power running as the start point and the extracted brake end point as the end point for each of the driving curve candidates. Specifically, the travel start point (departure station) is set as the start point of the first section, and the power run start point to the next brake end point are set as one section. However, if there is no power running between the next brake end point and the next end point, one section is made up to the next end point.

  The reverse curve generation unit 244 generates a reverse curve for each of the operation curve candidates. That is, among the set sections, for each section excluding the first section, the “starting point” of the section, that is, extending from the starting point of the power running to the direction opposite to the traveling direction (direction toward the traveling starting point) A reverse pulling curve is generated that travels by “powering at the same notch as powering” and reaches the starting point of the powering.

  The temporary driving curve candidate creation unit 246 generates a temporary driving curve candidate that is changed by increasing coasting in one of the set sections for each driving curve candidate. Specifically, a portion between the power running closest to the end point of the section and the next brake is set as a target portion, and the coasting traveling is changed to this target portion so as to be added by a predetermined distance set as a creation condition.

  The improvement efficiency calculation unit 248 calculates the improvement efficiency R of the temporary driving curve candidate with respect to the driving curve candidate. That is, the amount of increase ΔW (= W−W0) of the power consumption W of the temporary driving curve candidate with respect to the power consumption amount W0 of the driving curve candidate and the travel time of the temporary driving curve candidate with respect to the travel time t0 of the driving curve candidate The increase amount Δt (= t−t0) of the minute t1 is calculated, and the ratio of the decrease amount “−ΔW” of the power consumption amount to the increase amount Δt of the running time is calculated as the improvement efficiency R (= −ΔW / Δt). To do.

  The power consumption improvement unit 240 then selects the one with the largest “improvement efficiency R = −ΔW / Δt” among the temporary operation curve candidates generated by the temporary operation curve candidate creation unit 246 as the best operation curve. The selection as a candidate is executed for each driving curve candidate.

  The storage unit 300 stores a system program for realizing various functions for the processing unit 200 to control the operation curve creating apparatus 1 in an integrated manner, a program and data for realizing the present embodiment, and the like. It is used as a work area of the processing unit 200 and temporarily stores calculation results executed by the processing unit 200 according to various programs, input data from the operation input unit 110, and the like. In the present embodiment, the operation curve creation program 310, the track condition data 320, the train condition data 330, the basic operation curve data 340, the brake end point list 350, the creation condition setting data 360, and the energy saving operation curve creation. Data 370 and energy saving operation curve data 380 are stored.

  The energy saving operation curve creation data 370 is data used when the energy saving operation curve creation unit 230 creates an energy saving operation curve. FIG. 17 is an example of the data configuration of the energy saving operation curve creation data 370. According to FIG. 17, the energy-saving driving curve creation data 370 is generated for each driving curve candidate, and identification number candidate number 371, changed brake notch data 372, driving curve candidate data 373, and power consumption improvement. Data 374, energy saving operation curve candidate data 375, energy consumption amount 376 of the energy saving operation curve candidate, and running time 377 are stored.

  The changed brake notch data 372 is a combination of brake notches applied to each brake when the target driving curve candidate is created. The power consumption improvement data 374 is generated for each tentative driving curve candidate created by changing the corresponding driving curve candidate, and when the tentative driving curve candidate is created, The section number which is the number of the section where the coasting is changed (added), temporary driving curve candidate data, and improvement efficiency of the temporary driving curve candidate are stored.

[Process flow]
18 to 19 are flowcharts for explaining the flow of the operation curve creation process. This process is a process executed by the processing unit 200 according to the operation curve creation program 310.

  First, the basic operation curve creation unit 210 creates a basic operation curve (step A1). Next, the creation condition setting unit 220 sets the creation conditions for creating the energy saving operation curve by changing the basic operation curve according to the input operation of the user via the operation input unit 110 (step A3). Subsequently, the end point extraction unit 232 extracts the stop brake curve and the end point of the speed limit brake curve from the basic operation curve as a brake end point (step A5).

  Then, the driving curve candidate creation unit 234 generates a combination of brake notches at each of the extracted brake end points (step A7), and applies reverse pulling operation designation specifying the brake notch at each brake end point to perform reverse pulling. A curve is generated, and a basic operation curve is changed based on these reverse pulling curves, thereby generating a driving curve candidate corresponding to each of the generated combinations of brake end points (step A9).

  Subsequently, a loop A process is performed for each of the created running curve candidates. In the loop A, first, it is determined whether the target driving curve candidate satisfies the driving curve establishment condition. Here, the running curve establishment condition is to satisfy all of the following: not stopping between stations, not exceeding the speed limit set for the track, and not exceeding the running time set as the creation condition. If the driving curve establishment condition is not satisfied (step A11: NO), it is determined that the corresponding energy saving driving curve cannot be created, and the power consumption amount of the target driving curve candidate is set to “∞ (very large value)”. Set (step A23). If the driving curve establishment condition is satisfied (step A11: YES), the brake end point where the target driving curve candidate does not pass is deleted (step A13).

  Subsequently, the process of loop B for each brake end point is performed. In the loop B, the coasting adjustment unit 236 compares the coasting time immediately before the brake related to the target brake end point with a predetermined time, and if the coasting time is less than the predetermined time (step A15: NO) ), The target driving curve candidate is corrected so as to increase coasting time by adding coasting (step A17). As a result, among all the driving operations (powering, coasting, braking) that constitute the target driving curve candidate, when the traveling time is less than a certain time (step A19: NO), or If the operation curve candidate does not satisfy the operation curve establishment condition (step A21: NO), the processing of loop B is terminated at that time, and it is impossible to create a corresponding energy saving operation curve. The electric energy is set to “∞ (very large value)” (step A23).

  When the processing of loop B for all the brake end points is completed, the brake end point where the target driving curve candidate does not pass is deleted (step A25). Subsequently, the section setting unit 242 sets a section with the starting point of power running as the start point and the end point of the next brake as the end point for the target driving curve candidate (step A27). Then, the reverse curve generation unit 244 generates a reverse curve at the time of running with the same notch as the power running at the start point (that is, the power running start point) of each set section (step A29).

  Thereafter, processing of loop C is performed for each set section. In the loop C, coasting of a predetermined travel distance is added to the target section to create a temporary driving curve candidate (step A31). The running time of all the driving operations (powering, coasting, braking) constituting the created temporary driving curve candidate is equal to or longer than a certain time (step A33: YES), and this temporary driving curve candidate is the driving curve. If the establishment condition is satisfied (step A35), the temporary driving curve improvement efficiency R is calculated (step A37).

  On the other hand, if any one of the travel times of all the driving operations constituting the temporary driving curve candidate is less than a certain time (step A19: NO), or the driving curve establishment condition is not satisfied If so (step A35: NO), the improvement efficiency R of this temporary operation curve is set to “−∞ (very large value in the minus direction)” (step A39). Loop C is performed in this way.

  When the processing of the loop C for all the sections is finished, the one with the highest improvement efficiency R is selected from each of these temporary operation curve candidates, and the maximum improvement efficiency R is a positive value (R> 0). If so (step A41: YES), the selected temporary driving curve candidate is updated as a new driving curve candidate (step A43), and then re-executed from the processing of the loop C to further add coasting, Similar processing is repeated.

  When the process of Loop A for all the operation curve candidates is completed, the energy saving operation curve creation unit 230 selects, as the energy saving operation curve, the one having the smallest power consumption amount from all the operation curve candidates ( Step A45), for example, a display output (Step A47). The operation curve creation process is performed in this way.

[Function and effect]
Thus, according to the driving curve creation device 1 of the present embodiment, a new driving power consumption can be reduced by changing the brake notch and changing the coasting for a given driving curve. A simple operation curve can be created. Specifically, for the basic driving curve, create multiple driving curve candidates by changing the brake notch, and improve the improvement efficiency by adding coasting for each of these multiple driving curve candidates The driving curve candidate is corrected. Then, among the plurality of operation curve candidates, the one with the smallest power consumption is set as the energy saving operation curve with respect to the basic operation curve. In addition, according to the driving curve creation device 1 of the present embodiment, since the driving curve is changed so as to reduce the brake notch, the driving curve improves the ride comfort of the passenger, and the driving operation is performed for the driver. As a result, secondary effects such as an easy-to-operate operating curve may occur.

  It should be noted that embodiments to which the present invention can be applied are not limited to the above-described embodiments, and can be appropriately changed without departing from the spirit of the present invention.

  For example, in the above-described embodiment, an electric vehicle having a motor is used as a railway vehicle. However, by replacing the power consumption amount with various energy consumption amounts related to traveling, other vehicles, for example, diesel vehicles having a generator can be used. It is possible to apply. When applied to a diesel car, the amount of regenerative power is zero, and the amount of fuel consumed can be used as the amount of power consumed.

DESCRIPTION OF SYMBOLS 1 Operation curve creation apparatus 110 Operation input part, 120 Display part, 130 Communication part 200 Processing part 210 Basic operation curve creation part, 220 Creation condition setting part 230 Energy saving operation curve creation part 232 End point extraction part, 234 Driving curve candidate creation part 236 coasting adjustment unit 240 power consumption improvement unit 242 section setting unit 244 reverse lookup curve generation unit 246 temporary operation curve candidate creation unit 248 improvement efficiency calculation unit 300 storage unit 310 operation curve creation program 320 line condition data 330 Train condition data 340 Basic operation curve data, 350 Brake end point list 360 creation condition setting data, 370 Energy saving operation curve creation data 380 Energy saving operation curve data

Claims (6)

A program for causing a computer to create a driving curve on a two-axis coordinate system of traveling position and traveling speed,
An end point of a stop brake curve portion of a given driving curve created so as to satisfy a predetermined speed constraint, and a speed limit included in the speed constraint of the given driving curve End point selection means for selecting the end point of the brake curve portion immediately before the point,
The brake curve portion related to the end point becomes a speed curve when the brake force at the given change candidate having a brake force smaller than the brake notch of the brake curve portion is continued to reach the end point. Thus, a reverse curve creation means for creating a reverse curve by extending in the reverse direction from the end point,
For each combination of the combination of the end points and the combination of the same end points and the difference in brake notch of the change candidate, the reverse according to the brake notch of the change candidate relating to the end point of the combination first operating curve candidate generating means for generating an I operation curve candidate line updates for updating the given operating curve to pass through the end point along the pull curve,
Power consumption calculating means for calculating the power consumption of each of the driving curve candidates,
Selection means for selecting an energy saving operation curve from the operation curve candidates based on the calculated power consumption amount,
A program for causing the computer to function as When the first update is performed, the driving curve candidate generation means includes an end point through which the updated driving curve does not pass in the end point of the combination to be updated. Deleting the end point and generating the driving curve candidate;
The program according to claim 1. When there is no coasting traveling just before the brake curve portion passing through the end point along the reverse curve included in the driving curve candidate, or when there is coasting traveling but the traveling time is less than a predetermined time Coasting travel adjustment means for adjusting the driving curve candidate by adding coasting so that the travel time is equal to or greater than the predetermined time,
The program according to claim 1 or 2 for causing the computer to function. For each of the driving curve candidates, between the stop brake curve portion included in the driving curve candidate and the power running curve portion nearest to the departure station side of the stop brake curve portion, and the speed limit location included in the speed constraint condition Between the immediately preceding brake curve portion and the power running curve portion nearest to the departure station side of the immediately preceding brake curve portion as a processing target candidate, and coasting traveling is set by additionally setting coasting traveling to any of the processing target candidates operating curve candidate updating means performs predetermined coasting increase process for increasing performs a second update to update the operating curve candidates,
The program as described in any one of Claims 1-3 for functioning the said computer as . Further causing the computer to function as a designation means for designating a specified running time allowed beyond the running time of the given driving curve;
The operation curve update means updates the operation curve within the range of the specified travel time.
The program as described in any one of Claims 1-4. An end point of a stop brake curve portion of a given driving curve created so as to satisfy a predetermined speed constraint condition on a two-axis coordinate system of a running position and a running speed, and the given driving An end point selection means for selecting an end point of the brake curve portion immediately before the speed limit portion included in the speed constraint condition of the curve;
The brake curve portion related to the end point becomes a speed curve when the brake force at the given change candidate having a brake force smaller than the brake notch of the brake curve portion is continued to reach the end point. Thus, a reverse curve creating means for creating a reverse curve by extending in the reverse direction from the end point,
For each combination of the combination of the end points and the combination of the same end points and the difference in brake notch of the change candidate, the reverse according to the brake notch of the change candidate relating to the end point of the combination and operating curve candidate generating means for generating said given first row I running curves candidate update to update the operating curve to pass through the end point along the pull curve,
Power consumption calculating means for calculating the power consumption of each of the driving curve candidates;
Selection means for selecting an energy saving operation curve from the operation curve candidates based on the calculated power consumption;
A driving curve creation device comprising:

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