CN110217274A - A kind of determination method and device in vehicle coasting section - Google Patents
A kind of determination method and device in vehicle coasting section Download PDFInfo
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- CN110217274A CN110217274A CN201910390038.7A CN201910390038A CN110217274A CN 110217274 A CN110217274 A CN 110217274A CN 201910390038 A CN201910390038 A CN 201910390038A CN 110217274 A CN110217274 A CN 110217274A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/04—Automatic systems, e.g. controlled by train; Change-over to manual control
Abstract
This application discloses a kind of determination method and devices in vehicle coasting section, comprising: obtains the speed limit value of first interval and the speed limit value of second interval on destination path, driving process of the vehicle in first interval is prior to the driving process in second interval；If it is determined that the speed limit value of first interval is greater than the speed limit value of second interval, then the first subinterval and the second subinterval in first interval are removed, and using section remaining in the first interval as the coasting section of vehicle；The starting point in the first subinterval is overlapped with the starting point of first interval, the terminal in the second subinterval is overlapped with the terminal of first interval, the path length in the first subinterval and the second subinterval is not less than the length of wagon of vehicle, and the path length of first interval is greater than the sum of the path length in the first subinterval and the second subinterval.Coasting is carried out when driving in the coasting section when controlling vehicle, can be reduced the energy consumed needed for being braked to vehicle, be achieved the effect that reduce energy consumption of vehicles.
Description
Technical field
This application involves vehicle coasting technical fields, more particularly to the determination method and dress in a kind of vehicle coasting section
It sets.
Background technique
For other means of transportation, the total energy consumption of rail traffic is huge for rail traffic.Therefore, in train
In operational process, take effective energy-saving run measure, under the premise of guaranteeing conevying efficiency, can reduce the operation of train at
This.Currently, common energy-saving train operation measure, is rationally to control vehicle by the traction policy in optimization train travelling process
Carry out coasting traveling only rely on inertia when being in coasting driving status due to train and travelled, without consuming energy to lead
Draw train, therefore can effectively save the energy consumption of train in the process of running.Based on this, it is thus necessary to determine that go out the in-orbit road of train
On can carry out the region of coasting traveling.
Summary of the invention
The embodiment of the present application provides a kind of determination method and device in vehicle coasting section, to determine vehicle in target
Coasting section on path, so that the energy of vehicle can be reduced by carrying out coasting traveling on the coasting section by control vehicle
Consumption.
In a first aspect, the embodiment of the present application provides a kind of determination method in vehicle coasting section, comprising:
The speed limit value of first interval and second interval adjacent on destination path is obtained, vehicle is in the first interval
Driving process prior to the driving process in the second interval；
If the speed limit value of the first interval is greater than the speed limit value of the second interval, remove in the first interval
First subinterval and the second subinterval, and using section remaining in the first interval as the coasting section of vehicle；
Wherein, the starting point in first subinterval is overlapped with the starting point of the first interval, the end in second subinterval
Point is overlapped with the terminal of the first interval, and the path length in first subinterval and the second subinterval is not less than vehicle
Length of wagon, the path length of the first interval are greater than the sum of the path length in first subinterval and the second subinterval.
In some possible embodiments, the path that the speed limit value of the first interval is characterized by the first interval
Maximum speed limit, the maximum speed limit in the path that the speed limit value of the second interval is characterized by the second interval.
In some possible embodiments, the speed limit value of the first interval is the alarm speed of the first interval
Value, the alarm velocity amplitude of the first interval are lower than the maximum speed limit in the path that the first interval is characterized；
The speed limit value of the second interval is the alarm velocity amplitude of the second interval, the alarm speed of the second interval
Maximum speed limit of the value lower than the path that the second interval is characterized.
In some possible embodiments, the method also includes:
Obtain real time running velocity amplitude of the vehicle in the first interval；
If the real time running velocity amplitude is greater than the alarm velocity amplitude of the first interval, alarm prompt is presented.
In some possible embodiments, the method also includes:
Obtain real time position of the vehicle in the first interval；
If determining that the vehicle reaches the coasting section according to the real time position, the control vehicle is presented and carries out
The prompt of coasting traveling；
And/or
If determining that the vehicle sails out of the coasting section according to the real time position, the control vehicle, which is presented, to be terminated
The prompt of coasting traveling.
Second aspect, the embodiment of the present application also provides a kind of determining device in vehicle coasting section, described device includes:
First obtains module, for obtaining the speed limit value of first interval and second interval adjacent on destination path, vehicle
In the driving process in the first interval prior to the driving process in the second interval；
Module is removed, if being greater than the speed limit value of the second interval for the speed limit value of the first interval, removes institute
The first subinterval and the second subinterval in first interval are stated, and using section remaining in the first interval as vehicle
Coasting section；
Wherein, the starting point in first subinterval is overlapped with the starting point of the first interval, the end in second subinterval
Point is overlapped with the terminal of the first interval, and the path length in first subinterval and the second subinterval is not less than vehicle
Length of wagon, the path length of the first interval are greater than the sum of the path length in first subinterval and the second subinterval.
In some possible embodiments, the path that the speed limit value of the first interval is characterized by the first interval
Maximum speed limit, the maximum speed limit in the path that the speed limit value of the second interval is characterized by the second interval.
In some possible embodiments, the speed limit value of the first interval is the alarm speed of the first interval
Value, the alarm velocity amplitude of the first interval are lower than the maximum speed limit in the path that the first interval is characterized；
The speed limit value of the second interval is the alarm velocity amplitude of the second interval, the alarm speed of the second interval
Maximum speed limit of the value lower than the path that the second interval is characterized.
In some possible embodiments, described device further include:
Second obtains module, for obtaining real time running velocity amplitude of the vehicle in the first interval；
First is presented module, if being greater than the alarm velocity amplitude of the first interval for the real time running velocity amplitude,
Alarm prompt is presented.
In some possible embodiments, described device further include:
Third obtains module, for obtaining real time position of the vehicle in the first interval；
Second is presented module, if being in for determining that the vehicle reaches the coasting section according to the real time position
Now control the prompt that the vehicle carries out coasting traveling；
And/or
Module is presented in third, if being in for determining that the vehicle sails out of the coasting section according to the real time position
Now controlling the vehicle terminates the prompt of coasting traveling.
In the above-mentioned implementation of the embodiment of the present application, the speed limit value and second of first interval on destination path is obtained
The speed limit value in section, wherein driving process of the vehicle in first interval is prior to the driving process in second interval；So
Afterwards, however, it is determined that the speed limit value for going out first interval is greater than the speed limit value of second interval, then removes the first subinterval in first interval
And second subinterval, and using section remaining in the first interval as the coasting section of vehicle；Wherein, first subinterval
Starting point is overlapped with the starting point of first interval, and the terminal in the second subinterval is overlapped with the terminal of first interval, the first subinterval and the
The path length in two subintervals is not less than the length of wagon of vehicle, and the path length of first interval is greater than the first subinterval and the
The sum of the path length in two subintervals.As it can be seen that when the speed limit value for determining first interval is greater than the speed limit value of second interval, table
Bright vehicle needs the speed of vehicle being reduced to the speed limit value of second interval hereinafter, this makes vehicle before travelling to second interval
It can be by way of coasting the speed for reducing vehicle when driving in first interval, may thereby determine that vehicle
Coasting section can be located at first interval on, then, the length of wagon based on vehicle in practical application can be in first interval
On the range in coasting section is further limited, so as to further increase vehicle coasting section determination precision, in turn
Coasting is carried out when driving in the coasting section when controlling vehicle, can be reduced vehicle and be travelled from first interval to second interval
The energy consumed needed for being braked in the process to vehicle achievees the effect that reduce energy consumption of vehicles.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations as described in this application
Example, for those of ordinary skill in the art, is also possible to obtain other drawings based on these drawings.
Fig. 1 is an application scenarios schematic diagram in the embodiment of the present application；
Fig. 2 is another application scenarios schematic diagram in the embodiment of the present application；
Fig. 3 is a kind of flow diagram of the determination method in vehicle coasting section in the embodiment of the present application；
Fig. 4 is the schematic diagram in the coasting section in the embodiment of the present application in first interval；
Fig. 5 shows the Maximum speed limit curve and alarm rate curve of destination path；
Fig. 6 is a kind of flow diagram of the determination method in vehicle coasting section in the embodiment of the present application；
Fig. 7 is a kind of structural schematic diagram of the determining device in vehicle coasting section in the embodiment of the present application.
Specific embodiment
Inventor it has been investigated that, when being in coasting driving status due to vehicle, vehicle is without consuming energy towing vehicle
Traveling, but the inertia traveling of vehicle itself is relied on, therefore, in the driving process of vehicle, usually selection control vehicle is most
Amount carries out coasting traveling, to reduce the energy consumption of vehicle in the process of moving.For train, institute in operational process
The energy consumption of generation is larger, and energy consumption needed for train is reduced in the way of coasting has more significant meaning.It is thus necessary to determine that
It is suitble to the section of coasting on the path that vehicle is travelled out.
Based on this, the embodiment of the present application provides a kind of determination method in vehicle coasting section, the speed limit in passage path
Value come determine be suitble to coasting section, coasting traveling is carried out on the section in order to control vehicle, to reduce vehicle
Energy consumption.Specifically, obtain the speed limit value in adjacent two sections on destination path, for ease of description, below with first interval with
And second interval distinguishes the two sections, wherein driving process of the vehicle in first interval is prior in the secondth area
Between on driving process enter second interval row after being driven out to first interval that is, vehicle can be travelled first in first interval
It sails；Then, however, it is determined that the speed limit value for going out first interval is greater than the speed limit value of second interval, then removes the first son in first interval
Section and the second subinterval, and using section remaining in the first interval as the coasting section of vehicle；Wherein, the first sub-district
Between starting point be overlapped with the starting point of first interval, the terminal in the second subinterval is overlapped with the terminal of first interval, the first subinterval
It is not less than the length of wagon of vehicle with the path length in the second subinterval, the path length of first interval is greater than the first subinterval
The sum of with the path length in the second subinterval.
It is appreciated that due to being travelled by inertia when vehicle is in coasting driving status, vehicle in the process
Be not towed the effect of power, but will receive the effect of frictional ground force, wind resistance so that vehicle the frictional force
Slow down under the action of wind resistance.Therefore, when the speed limit value for determining first interval is greater than the speed limit value of second interval, table
Bright vehicle needs the speed of vehicle being reduced to the speed limit value of second interval hereinafter, this makes vehicle before travelling to second interval
It can be by way of coasting the speed for reducing vehicle when driving in first interval, may thereby determine that vehicle
Coasting section can be located at first interval on, then, the length of wagon based on vehicle in practical application can be in first interval
On the range in coasting section is further limited, so as to further increase vehicle coasting section determination precision.Pass through
It controls vehicle and carries out coasting traveling in the coasting section, vehicle can be reduced and travelled from first interval to the process of second interval
In vehicle is braked needed for (speed limit value that speed when in order to guarantee that vehicle drives into second interval is no more than second interval)
The energy of consumption, so as to reduce the energy consumption of vehicle.For example, speed is 80 kilometer per hours (km/h) before vehicle coasting, vehicle
Coasting rear vehicle speed is 50 kilometer per hours, then relative to vehicle as the system of 80 kilometer per hours of brakings to consumption needed for 0
For kinetic energy consumption, vehicle is as 50 kilometer per hours of brakings to braking energy consumption needed for 0, it is possible to reduce 0.5*M* ((80km/h)2-
(50km/h)2) energy consumption.
As an example, the embodiment of the present application can be applied to exemplary application scene as shown in Figure 1.In the scene
In, user 101 can input each section in length of wagon, destination path and the destination path of train on the terminal 102
Speed limit value, which includes adjacent first interval and the speed limit values of second interval, also, the driving mode based on train can
To determine that train can be travelled preferentially in first interval for second interval；Terminal 102 is getting each section
After speed limit value, the speed limit value in two adjacent sections can be compared two-by-two, however, it is determined that the speed limit of first interval therein
Value is greater than the speed limit value of second interval, it is determined that the section that train can carry out coasting is located at first interval；Then, terminal 102
According to the length of wagon for the train that user 101 inputs, removal first interval both ends path length is two sub-districts of length of wagon
Between, that is, in two subintervals removing, the starting point in a subinterval is overlapped with the starting point of first interval, the end in another subinterval
Point is overlapped with the terminal of second interval, and certainly, the path length that first interval is characterized is greater than the road that two subintervals are characterized
The sum of electrical path length；Finally, obtained remaining section is determined as train terminal 102 will remove two subintervals in first interval after
Coasting section, i.e. train can carry out the section of coasting traveling on destination path, and should on the display screen of terminal 102
Coasting section is presented to the user 101.Certainly, the section determined in practical application is not only the coasting area in first interval
Between, other coasting sections may also be can determine whether out as procedure described above by being directed to other two adjacent sections.That is, base
One or more coasting section can be determined on destination path in the above method.
It is understood that above-mentioned scene is only a Sample Scenario provided by the embodiments of the present application, the embodiment of the present application
It is not limited to this scene.For example, the high calculated performance based on server can also be by taking in other possible application scenarios
Business device is completed.Specifically, as shown in Fig. 2, user 101 will be each in the length of wagon of train, destination path and destination path
The speed limit value in section is input to terminal 102, generates the request for determining coasting section based on received information by terminal 102,
And server 103 is sent the request to, server 103 parses the request received, is directed to phase on destination path
Adjacent first interval and second interval, if the speed limit value of first interval is greater than the speed limit value of second interval, according to train
Length of wagon, removal first interval both ends path length are two subintervals of length of wagon, the starting point in a subinterval and the
The starting point in one section is overlapped, and the terminal in another subinterval is overlapped with the terminal of second interval, certainly, what first interval was characterized
Path length is greater than the sum of the path length that two subintervals are characterized；Then, server 103 can will remove in first interval
Obtained residue section is determined as the coasting section of train behind two subintervals, and identified coasting section is sent to end
End 102, in order to which the coasting section is presented to the user 101 by terminal 102.Equally, other adjacent areas Liang Ge in practical application
Between may also can determine whether out other coasting sections as procedure described above, therefore, server 103 be based on the above process may can determine whether
One or more coasting section out.In short, above-mentioned Sample Scenario be only used as it is exemplary, the embodiment of the present application can be applied to appoint
In what application scenarios applicatory, it is not limited to above-mentioned Sample Scenario.
In order to make the above objects, features, and advantages of the present application more apparent, below in conjunction with attached drawing to this Shen
Please the various non-limiting implementations in embodiment illustrate.Obviously, described embodiment is the application one
Section Example, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not doing
All other embodiment obtained under the premise of creative work out, shall fall in the protection scope of this application.
A kind of process signal of the determination method in vehicle coasting section in the embodiment of the present application is shown refering to Fig. 3, Fig. 3
Figure, this method can specifically include:
S301: the speed limit value of first interval and second interval adjacent on destination path is obtained, wherein vehicle is first
Driving process on section is prior to the driving process in second interval.
In practical application, for vehicle during travelling on destination path, different sections of highway may have different speed limits.Than
It such as, may include highway, backroad A and backroad B for the path that automobile is travelled, wherein high
The Maximum speed limit of fast highway is 120 kilometer per hours, and the Maximum speed limit of backroad A is 60 kilometer per hours, backroad B
Maximum speed limit is 80 kilometer per hours etc..
Therefore, in a kind of example of specific implementation, each road on the destination path that vehicle is travelled can be obtained in advance
The speed limit value of section, and divide to obtain multiple sections according to the speed limit value in each section, the corresponding speed limit value in two neighboring section is simultaneously
It is not identical, it is hereby achieved that the speed limit value of adjacent first interval and second interval.Wherein, vehicle is in first interval
Driving process is prior to the driving process in second interval, and also as vehicle can drive into the secondth area after being driven out to first interval
Between.
Wherein, the vehicle mentioned in the present embodiment specifically can be the train based on rail running such as train,
It can be the vehicle that automobile etc. travels on non-track.
S302: if the speed limit value of first interval is greater than the speed limit value of second interval, the first son in first interval is removed
Section and the second subinterval, and using section remaining in first interval as the coasting section of vehicle；Wherein, the first subinterval
Starting point be overlapped with the starting point of first interval, the terminal in the second subinterval is overlapped with the terminal of first interval, the first subinterval with
The path length in the second subinterval is not less than the length of wagon of vehicle, the path length of first interval be greater than the first subinterval with
The sum of the path length in the second subinterval.
In the present embodiment, however, it is determined that the speed limit value of first interval is greater than the speed limit value of second interval, then shows to exist when vehicle
The speed limit value of second interval cannot be exceeded by being driven out to possessed speed when first interval, this travels vehicle in first interval
During need to complete reduction of speed.Therefore, in order to reduce or avoid to vehicle carry out reduction of speed needed for consumption energy, this implementation
Example in coasting traveling can be carried out in first interval, using wind resistance suffered by coasting when driving vehicle and with ground it
Between the resistances such as frictional force reduce the speed of vehicle.In this way, realizing that vehicle is not only not required to while carrying out reduction of speed to vehicle
Energy towing vehicle traveling is consumed, furthermore, it is possible to reduce or avoid vehicle from braking itself and the energy consumption that generates.Base
In this, it can determine that vehicle is able to carry out the coasting section that coasting travels and is located in first interval.
Further, in practical application, vehicle also has certain length of wagon, for train, in fact
The length of wagon on border is larger, can not be regarded as a particle and run on destination path.Therefore, in order to meet vehicle in mesh
Speed limit requirement when driving on path is marked, where the speed of the tailstock and the tailstock that need to guarantee vehicle is all satisfied the vehicle on section
Speed limit requirement.
The coasting section in first interval can be further oriented based on this, in the embodiment of the present application.Specifically, can be with
The first subinterval and the second subinterval are removed in first interval, wherein the starting point in the first subinterval and rising for first interval
Point is overlapped, and the terminal in the second subinterval is overlapped with the terminal of first interval, also, the path length that first interval is characterized is greater than
What the sum of the path length that the first subinterval and the second subinterval are characterized, the first subinterval and the second subinterval were characterized
Path length is not less than the length of vehicle, and (wherein, the longitudinal axis characterizes speed, and horizontal axis characterizes the position on destination path as shown in Figure 4
It sets).In this way, during vehicle drives into first interval by 3rd interval, the tailstock of vehicle always situated in 3rd interval so that
The speed of the vehicle tailstock still needs the requirement of the speed limit value for meeting 3rd interval, and (wherein, the speed limit value of 3rd interval is less than the
The speed limit value in one section), therefore, the headstock of vehicle carries out to travel without coasting when driving on the first subinterval, from
And it may further determine that the vehicle coasting section in first interval.Meanwhile vehicle is driving into second interval by first interval
During, the headstock of vehicle needs to meet the upper speed limit requirement of second interval, and therefore, the tailstock of vehicle is in the second subinterval
Upper progress can also travel when driving without coasting.
If it is worth noting that, in practical application vehicle on some section there is no the demand slowed down, would generally be
Remain a constant speed the state of cruise on the section.Therefore, in the present embodiment, process that the headstock of vehicle travels on the first subinterval
In, vehicle can be remained a constant speed cruising condition with the speed of the speed limit value no more than 3rd interval；Similar, the tailstock of vehicle exists
During travelling on second subinterval, vehicle can be remained a constant speed the shape that cruises with the speed of the speed limit value no more than second interval
State.
Therefore, in the present embodiment, based on the mode that control vehicle is travelled in practical application, first interval can be removed
On can without coasting travel the first subinterval and the second subinterval, in this way, the remaining section in first interval is
Vehicle can carry out the section of coasting traveling, then can determine it as the coasting section of vehicle.
In the present embodiment, the speed limit value of mentioned first interval, second interval and 3rd interval specifically be can be each
The maximum speed limit in the path that section is characterized, that is, vehicle is not in the case where violating situation as defined in actual track or road
The attainable maximum speed of institute.Certainly, in other possible embodiments, mentioned first interval, second interval and
The speed limit value of 3rd interval is also possible to alert velocity amplitude, wherein the alarm velocity amplitude in each section is lower than each section institute table
The maximum speed limit in the path of sign.It is appreciated that vehicle in first interval when driving, control vehicle speed be no more than this
There may be certain difficulty and security risks for the maximum speed limit in one section, if existing in the rate control process of vehicle
Situations such as excessively accelerating may result in the speed of vehicle beyond maximum speed limit, to can have some potential safety problems.Cause
This can be set as the alarm velocity amplitude that each section is set lower than maximum speed limit in some possible embodiments, and
And vehicle in first interval when driving, can control vehicle with not higher than first interval alarm velocity amplitude speed carry out
Traveling, in this way, even if leading to the speed of vehicle beyond alarm velocity amplitude, due to alerting speed due to control fault or error
There are certain speed error tolerance (namely speed difference) between value and maximum speed limit, the speed of vehicle also without departing from this
Maximum speed limit corresponding to one section.
Further, it is carried out in first interval when vehicle when driving, in order to effectively avoid the speed of vehicle beyond announcement
Continue to accelerate after alert speed limit value, so that speed finally be made to reach or beyond maximum speed limit, in some possible embodiment party
In formula, real time running velocity amplitude of the available vehicle in first interval, and whether monitor the real time running velocity amplitude big
In the alarm velocity amplitude of first interval, however, it is determined that be greater than, then can trigger alarm and alarm prompt is presented, to prompt driving for vehicle
The person of sailing controls vehicle and carries out reduction of speed traveling, so as to be further ensured that the driving safety of vehicle.
Furthermore it is also possible to which the position indicating driver based on vehicle in first interval, which controls vehicle, carries out coasting traveling
And/or terminate coasting traveling.Specifically, real time position of the available vehicle in first interval, however, it is determined that the vehicle reaches
The prompt that control vehicle carries out coasting traveling is then presented in coasting section, to prompt driver to start to carry out coasting traveling.And/or
If it is determined that the vehicle sails out of coasting section, then control vehicle, which can be presented, terminates the prompt of coasting traveling, to prompt driver to tie
Beam coasting starts to carry out braking traveling or present speed is kept to be driven at a constant speed.
In the present embodiment, speed limit value in passage path determines the section for being suitble to coasting, exists in order to control vehicle
Coasting traveling is carried out on the section, to reduce the energy consumption of vehicle.Specifically, obtaining the speed limit value of first interval on destination path
And the speed limit value of second interval, wherein driving process of the vehicle in first interval is prior to the traveling in second interval
Process；Then, however, it is determined that the speed limit value for going out first interval is greater than the speed limit value of second interval, then removes first in first interval
Subinterval and the second subinterval, and using section remaining in the first interval as the coasting section of vehicle；Wherein, the first son
The starting point in section is overlapped with the starting point of first interval, and the terminal in the second subinterval is overlapped with the terminal of first interval, the first sub-district
Between be not less than the length of wagon of vehicle with the path length in the second subinterval, the path length of first interval is greater than the first sub-district
Between the sum of with the path length in the second subinterval.As it can be seen that when speed limit of the speed limit value greater than second interval for determining first interval
When value, show vehicle travelling to the speed limit value for needing for the speed of vehicle to be reduced to second interval before second interval hereinafter,
This makes vehicle can be by way of coasting the speed for reducing vehicle when driving in first interval, so as to
Determine that the coasting section of vehicle can be located in first interval, then, the length of wagon based on vehicle in practical application can be
The range in coasting section is further limited in first interval, it is smart so as to further increase the determination in coasting section of vehicle
Degree, and then when control vehicle carries out coasting when driving in the coasting section, vehicle can be reduced and travelled from first interval to the
The energy consumed needed for being braked during two sections to vehicle achievees the effect that reduce energy consumption of vehicles.
The technical solution of the embodiment of the present application in order to facilitate understanding, below with reference to specific example to the skill of the embodiment of the present application
Art scheme is illustrated.Fig. 5 and Fig. 6 is participated in, Fig. 5 shows the Maximum speed limit curve and alarm speed song of destination path
Line, Fig. 6 show a kind of flow diagram of the determination method in vehicle coasting section, wherein the vehicle mentioned in the present embodiment
Specifically it can be train, this method can specifically include:
S601: the Maximum speed limit curve of destination path is obtained, wherein the Maximum speed limit curve characterizes each on destination path
The maximum speed limit in a section.
In the present embodiment, it is assumed that destination path includes 6 sections, respectively section 1, section 2, section 3, section 4, section
5 and section 6, corresponding speed limit value be respectively v1、v2、v3、v4、v5、v6。
Implement in a kind of mode, the Maximum speed limit curve can be is inputted at the terminal by user it is each on destination path
The length in a section and the speed limit value in each section, to be generated to obtain highest limit based on the content that user inputs by terminal
Fast curve.
S602: alarm rate curve is generated based on acquired Speed limit curve.
In the present embodiment, the alarm velocity amplitude in each section is lower than the maximum speed limit in the section, it is assumed that maximum speed limit
Speed difference between alarm speed is vth, then, when generating alarm curve, Maximum speed limit curve can be translated downwards
vth, so that driver can effectively control the speed of train without departing from maximum speed limit based on the alarm rate curve, also,
The alarm velocity amplitude of length of wagon L and each section based on train, can be generated alarm curve as shown in Figure 5.
Specifically, (i.e. by S in the driving direction of trainstartTo SendDirection), due to the maximum speed limit in section 1
v1Less than the maximum speed limit v in section 22, then can by the right contracting L length of the alarm curve in section 2, as shown in figure 5, similarly, since
v3<v4, by the right contracting L length of the alarm curve in section 4；And the maximum speed limit v in section 22Less than the maximum speed limit v in section 33,
It then can be by the left contracting L length of the alarm curve in section 2, as shown in figure 5, equally, by the left contracting L length of the alarm curve in section 5.By
Alarm rate curve corresponding to this obtained section 1 to section 6 is as shown in Figure 5.
S603: according to the alarm velocity amplitude in each section on alarm rate curve, the coasting section of train is determined.
Alarm speed v in alarm curve shown in Fig. 5, due to train in section 22' is greater than the alarm speed in section 3
v3', therefore, train can carry out coasting on section 2, similar, and train can also carry out lazy on section 4 and section 5
Row.Based on this, it can determine that the coasting section of train is located at section 2, section 4 and section 5.
Further, since the headstock of train is from S1' and S1Between travelled during, the tailstock of train is always
In section 1, so that alarm velocity amplitude v of the speed of train by section 11The limitation of ', so that train can not be in S1' with
S1Between carry out coasting；In addition, the tailstock of train is from S2It travels to S3Between travelled during, the headstock one of train
It is directly in section 3, so that alarm velocity amplitude v of the speed of train by section 33The limitation of ', so that train can not be in S2
With S3Between carry out coasting.Based on this, the coasting section of train can further be limited on section 2, by S on section 21With
S2Between section x1Coasting section as train.
Similar, it can be by S on section 44With S5Between section x2And S on section 56With S7Between section x3Make
For the coasting section of train.
In addition, the embodiment of the present application also provides a kind of determining devices in vehicle coasting section.It is shown refering to Fig. 7, Fig. 7
The structural schematic diagram of the determining device in a kind of vehicle coasting section in the embodiment of the present application, the device 700 include:
First obtains module 701, for obtaining the speed limit value of first interval and second interval adjacent on destination path,
Vehicle is in the driving process in the first interval prior to the driving process in the second interval；
Module 702 is removed, if being greater than the speed limit value of the second interval for the speed limit value of the first interval, is removed
The first subinterval and the second subinterval in the first interval, and using section remaining in the first interval as vehicle
Coasting section；
Wherein, the starting point in first subinterval is overlapped with the starting point of the first interval, the end in second subinterval
Point is overlapped with the terminal of the first interval, and the path length in first subinterval and the second subinterval is not less than vehicle
Length of wagon, the path length of the first interval are greater than the sum of the path length in first subinterval and the second subinterval.
In some possible embodiments, the path that the speed limit value of the first interval is characterized by the first interval
Maximum speed limit, the maximum speed limit in the path that the speed limit value of the second interval is characterized by the second interval.
In some possible embodiments, the speed limit value of the first interval is the alarm speed of the first interval
Value, the alarm velocity amplitude of the first interval are lower than the maximum speed limit in the path that the first interval is characterized；
The speed limit value of the second interval is the alarm velocity amplitude of the second interval, the alarm speed of the second interval
Maximum speed limit of the value lower than the path that the second interval is characterized.
In some possible embodiments, described device 700 further include:
Second obtains module, for obtaining real time running velocity amplitude of the vehicle in the first interval；
First is presented module, if being greater than the alarm velocity amplitude of the first interval for the real time running velocity amplitude,
Alarm prompt is presented.
In some possible embodiments, described device 700 further include:
Third obtains module, for obtaining real time position of the vehicle in the first interval；
Second is presented module, if being in for determining that the vehicle reaches the coasting section according to the real time position
Now control the prompt that the vehicle carries out coasting traveling；
And/or
Module is presented in third, if being in for determining that the vehicle sails out of the coasting section according to the real time position
Now controlling the vehicle terminates the prompt of coasting traveling.
In the present embodiment, when the speed limit value for determining first interval is greater than the speed limit value of second interval, show that vehicle exists
It needs the speed of vehicle being reduced to the speed limit value of second interval hereinafter, this makes vehicle first before traveling to second interval
It can be by way of coasting the speed for reducing vehicle on section when driving, may thereby determine that the coasting area of vehicle
Between can be located at first interval on, then, the length of wagon based on vehicle in practical application can be in first interval to coasting
The range in section further limits, so as to further increase vehicle coasting section determination precision, and then when control vehicle
Coasting is carried out when driving in the coasting section, it is right during travelling from first interval to second interval can to reduce vehicle
The energy that vehicle consumes needed for being braked achievees the effect that reduce energy consumption of vehicles.
In the titles such as " first interval " mentioned in the embodiment of the present application, " the first subinterval ", " first is presented module "
" first " is used only to do name mark, does not represent first sequentially.The rule is equally applicable to " second ", " third "
Deng.
As seen through the above description of the embodiments, those skilled in the art can be understood that above-mentioned implementation
All or part of the steps in example method can add the mode of general hardware platform to realize by software.Based on this understanding,
The technical solution of the application can be embodied in the form of software products, which can store is situated between in storage
In matter, such as read-only memory (English: read-only memory, ROM)/RAM, magnetic disk, CD etc., including some instructions to
So that a computer equipment (can be the network communication equipments such as personal computer, server, or router) executes
Method described in certain parts of each embodiment of the application or embodiment.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for device reality
For applying example, since it is substantially similar to the method embodiment, so describing fairly simple, related place is referring to embodiment of the method
Part explanation.The apparatus embodiments described above are merely exemplary, wherein mould as illustrated by the separation member
Block may or may not be physically separated, and the component shown as module may or may not be physics
Module, it can it is in one place, or may be distributed over multiple network units.It can select according to the actual needs
Some or all of the modules therein achieves the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creation
Property labour in the case where, it can understand and implement.
The above is only the illustrative embodiment of the application, is not intended to limit the protection scope of the application.
Claims (10)
1. a kind of determination method in vehicle coasting section, which is characterized in that the described method includes:
Obtain the speed limit value of first interval and second interval adjacent on destination path, row of the vehicle in the first interval
Journey is crossed prior to the driving process in the second interval；
If the speed limit value of the first interval is greater than the speed limit value of the second interval, first in the first interval is removed
Subinterval and the second subinterval, and using section remaining in the first interval as the coasting section of vehicle；
Wherein, the starting point in first subinterval is overlapped with the starting point of the first interval, the terminal in second subinterval with
The terminal of the first interval is overlapped, and the path length in first subinterval and the second subinterval is not less than the vehicle body of vehicle
Length, the path length of the first interval are greater than the sum of the path length in first subinterval and the second subinterval.
2. the method according to claim 1, wherein the speed limit value of the first interval is the first interval institute
The maximum speed limit in the path of characterization, the highest limit in the path that the speed limit value of the second interval is characterized by the second interval
Speed value.
3. the method according to claim 1, wherein
The speed limit value of the first interval is the alarm velocity amplitude of the first interval, and the alarm velocity amplitude of the first interval is low
Maximum speed limit in the path that the first interval is characterized；
The speed limit value of the second interval is the alarm velocity amplitude of the second interval, and the alarm velocity amplitude of the second interval is low
Maximum speed limit in the path that the second interval is characterized.
4. according to the method described in claim 3, it is characterized in that, the method also includes:
Obtain real time running velocity amplitude of the vehicle in the first interval；
If the real time running velocity amplitude is greater than the alarm velocity amplitude of the first interval, alarm prompt is presented.
5. the method according to claim 1, wherein the method also includes:
Obtain real time position of the vehicle in the first interval；
If determining that the vehicle reaches the coasting section according to the real time position, the control vehicle is presented and carries out coasting
The prompt of traveling；
And/or
If determining that the vehicle sails out of the coasting section according to the real time position, the control vehicle, which is presented, terminates coasting
The prompt of traveling.
6. a kind of determining device in vehicle coasting section, which is characterized in that described device includes:
First obtains module, and for obtaining the speed limit value of first interval and second interval adjacent on destination path, vehicle exists
Driving process in the first interval is prior to the driving process in the second interval；
Module is removed, if being greater than the speed limit value of the second interval for the speed limit value of the first interval, removes described the
The first subinterval and the second subinterval on one section, and using section remaining in the first interval as the coasting of vehicle
Section；
Wherein, the starting point in first subinterval is overlapped with the starting point of the first interval, the terminal in second subinterval with
The terminal of the first interval is overlapped, and the path length in first subinterval and the second subinterval is not less than the vehicle body of vehicle
Length, the path length of the first interval are greater than the sum of the path length in first subinterval and the second subinterval.
7. device according to claim 6, which is characterized in that the speed limit value of the first interval is the first interval institute
The maximum speed limit in the path of characterization, the highest limit in the path that the speed limit value of the second interval is characterized by the second interval
Speed value.
8. device according to claim 6, which is characterized in that
The speed limit value of the first interval is the alarm velocity amplitude of the first interval, and the alarm velocity amplitude of the first interval is low
Maximum speed limit in the path that the first interval is characterized；
The speed limit value of the second interval is the alarm velocity amplitude of the second interval, and the alarm velocity amplitude of the second interval is low
Maximum speed limit in the path that the second interval is characterized.
9. device according to claim 8, which is characterized in that described device further include:
Second obtains module, for obtaining real time running velocity amplitude of the vehicle in the first interval；
First is presented module, if being greater than the alarm velocity amplitude of the first interval for the real time running velocity amplitude, presents
Alarm prompt.
10. device according to claim 6, which is characterized in that described device further include:
Third obtains module, for obtaining real time position of the vehicle in the first interval；
Second is presented module, if control is presented for determining that the vehicle reaches the coasting section according to the real time position
Make the prompt that the vehicle carries out coasting traveling；
And/or
Module is presented in third, if control is presented for determining that the vehicle sails out of the coasting section according to the real time position
Making the vehicle terminates the prompt of coasting traveling.
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Application publication date: 20190910 |