CN113313855A - Energy consumption curve display method and vehicle - Google Patents
Energy consumption curve display method and vehicle Download PDFInfo
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- CN113313855A CN113313855A CN202110600962.0A CN202110600962A CN113313855A CN 113313855 A CN113313855 A CN 113313855A CN 202110600962 A CN202110600962 A CN 202110600962A CN 113313855 A CN113313855 A CN 113313855A
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0816—Indicating performance data, e.g. occurrence of a malfunction
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/12—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time in graphical form
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The invention provides an energy consumption curve display method and a vehicle, wherein the method comprises the following steps: acquiring an instantaneous energy consumption curve, wherein the instantaneous energy consumption curve is acquired according to a drawing point at the current moment and a drawing point at the previous moment, and the number of sampling points between every two adjacent drawing points is the same; updating an energy consumption curve of the display area according to the instantaneous energy consumption curve, wherein the energy consumption curve is a set of instantaneous energy consumption curves of equal-time values corresponding to a plurality of different moments; and superposing and displaying a historical average energy consumption display line on the energy consumption curve, wherein the historical average energy consumption display line displays the average energy consumption of the road section driven in a historical time period or displays the average energy consumption of the road section driven in the historical time period, which is the same as the current road section driven in the historical time period. The invention solves the technical problems that the display of the oil consumption of the vehicle in the prior art can not show the variation trend of the instantaneous oil consumption and can not reflect the variation trend and the variation amplitude of the oil consumption.
Description
Technical Field
The invention relates to the field of vehicles, in particular to an energy consumption curve display method and a vehicle.
Background
The prior art shows the fuel consumption of vehicles mainly in 3 forms:
digital real-time display: the current oil consumption is displayed in real time, but the change trend of the instantaneous oil consumption cannot be displayed, and the change trend and the change amplitude of the oil consumption cannot be reflected, for example, the instantaneous oil consumption is 7L/100km during normal driving, the instantaneous oil consumption can be rapidly increased or decreased by frequent acceleration and deceleration, and the change trend cannot be reflected by a digital display mode. As shown in fig. 2.
Displaying the progress bar in real time: the current oil consumption is displayed in real time, but the change trend of the instantaneous oil consumption cannot be displayed. As shown in fig. 3.
The latest 50km average fuel consumption shows: the fuel consumption curve after a period of time or a distance is reflected, the real-time instantaneous fuel consumption is not reflected, and the instantaneous fuel consumption variable quantity corresponding to the driving behavior of the user cannot be reflected in real time. As shown in fig. 4.
In addition, the three display modes in the prior art are only simple data display, and no energy consumption benchmark data or energy consumption benchmark graphic representation is provided for the user to refer to.
Disclosure of Invention
Based on the problems, the invention provides an energy consumption curve display method and a vehicle, solves the technical problems that the change trend of the instantaneous oil consumption cannot be displayed and the change trend and the change range of the oil consumption cannot be reflected due to the fact that the vehicle oil consumption is displayed in a digital real-time mode and displayed in a progress bar real-time mode in the prior art, and solves the technical problem that the instantaneous oil consumption change corresponding to the driving behavior of a user cannot be reflected in real time due to a recent 50km average oil consumption display mode. The technical problems that three display modes in the prior art are only simple data display and no energy consumption benchmark data or energy consumption benchmark graphic representation is provided for a user to refer to are solved. By means of the mode of giving the instantaneous energy consumption curve, a user can timely know the instantaneous energy consumption and the change trend of the instantaneous energy consumption, and the user can learn by combining the driving behavior and the change trend of the instantaneous energy consumption to form a good driving habit.
The invention provides an energy consumption curve display method, which comprises the following steps:
acquiring an instantaneous energy consumption curve, wherein the instantaneous energy consumption curve is acquired according to a drawing point at the current moment and a drawing point at the previous moment, and the number of sampling points between every two adjacent drawing points is the same;
updating an energy consumption curve of the display area according to the instantaneous energy consumption curve, wherein the energy consumption curve is a set of instantaneous energy consumption curves of equal-time values corresponding to a plurality of different moments;
and superposing and displaying a historical average energy consumption display line on the energy consumption curve, wherein the historical average energy consumption display line displays the average energy consumption of the road section driven in a historical time period or displays the average energy consumption of the road section driven in the historical time period, which is the same as the current road section driven in the historical time period.
Furthermore, the obtaining of the instantaneous energy consumption curve from the plot of the current time and the plot of the previous time comprises: the middle point of the drawing point at the current moment and the middle point of the drawing point at the previous moment in time is taken as a central point, the sampling points corresponding to the sampling moments which are symmetrical at the left side and the right side of the central point are taken as auxiliary drawing points, and the drawing point at the current moment, the drawing point at the previous moment and the auxiliary drawing points are used for drawing an instantaneous energy consumption curve.
Furthermore, the obtaining of the instantaneous energy consumption curve from the plot of the current time and the plot of the previous time comprises: and taking the drawing point at the current moment and the central point of the drawing point at the previous moment on time as drawing auxiliary points, and drawing the instantaneous energy consumption curve by using the drawing point at the current moment, the drawing point at the previous moment and the drawing auxiliary points.
In addition, the drawing assistance point further includes: and taking the middle point of the drawing point at the current moment and the drawing point at the previous moment in time as a central point, and taking sampling points corresponding to sampling moments which are symmetrical at the left side and the right side of the central point as auxiliary drawing points.
Further, updating the power consumption profile of the display area according to the instantaneous power consumption profile includes:
and updating and displaying the instantaneous energy consumption curve at one end of the display area, and moving the instantaneous energy consumption curve at the other end, which is the longest distance from the current moment, out of the display area.
In addition, when the instantaneous energy consumption curve is updated and displayed, the instantaneous energy consumption curve and the current energy consumption curve are drawn at the same time, the current energy consumption curve is not displayed in a display area during the updating, and the current energy consumption curve is used for preventing a screen flash or a blank space from occurring during the updating and displaying of the instantaneous energy consumption curve.
In addition, when the energy consumption curve of the display area is updated according to the instantaneous energy consumption curve, the previous instantaneous energy consumption curve is spliced with the current instantaneous energy consumption curve;
and if the last drawing point, the forward sampling point and the backward energy sampling point are on the same straight line, the last drawing point, the forward sampling point and the backward energy sampling point are directly spliced, otherwise, the last drawing point, the forward sampling point and the backward energy sampling point are preprocessed and then spliced.
Further, the pre-processing comprises: the forward and backward samples are connected in a straight line and translated through the last plot.
In addition, the preprocessing step further comprises: and zooming the translated straight line by taking the last drawing point as a center to adjust the smoothness of the splicing part.
In addition, the energy consumption curve is one of an oil consumption curve and an electricity consumption curve.
In addition, at least one of a line type, a line thickness, a line color, and a fill color corresponding to a portion of the power consumption curve that exceeds the historical average power consumption display line is different from other portions of the power consumption curve.
In addition, when the part exceeding the historical average energy consumption display line appears in the energy consumption curve, the number of wave crests corresponding to the part exceeding the historical average energy consumption display line in the energy consumption curve is recorded, the number of the wave crests is accumulated to obtain the number of accumulated wave crests, and the number of the accumulated wave crests is displayed in a display area where the energy consumption curve is located.
In addition, further calculating the energy consumption value corresponding to the part of the energy consumption curve exceeding the historical average energy consumption display line, accumulating and superposing the energy consumption values to obtain an accumulated energy consumption value, and displaying the accumulated energy consumption value in the display area where the energy consumption curve is located.
The invention provides a vehicle, which adopts any one of the energy consumption curve display methods, when a part exceeding a historical average energy consumption display line appears in an energy consumption curve, vehicle information at a moment corresponding to the exceeding part is acquired, and the vehicle information comprises: one or more combinations of speed information, brake information and throttle information; and in a preset frequency time period, if one or more of the vehicle information exceeds the corresponding preset value, displaying the frequency of the one or more vehicle information exceeding the preset value in a display area where the energy consumption curve is located.
The invention provides a vehicle, which adopts any one of the energy consumption curve display methods, and if the energy consumption curve is continuously positioned above the historical average energy consumption display line in a preset time period or the accumulated number of wave peaks positioned above the historical average energy consumption display line on the energy consumption curve in the preset time period exceeds a preset wave peak value, the mode of the vehicle is switched to the economic mode.
In addition, when the energy consumption curve is switched to the economy mode, the energy consumption exceeding the historical average energy consumption display line or the accumulated number of wave peaks above the historical average energy consumption display line in the preset time period is displayed in the display area where the energy consumption curve is located.
Through adopting above-mentioned technical scheme, have following beneficial effect:
the invention solves the technical problems that the change trend of the instantaneous oil consumption cannot be displayed and the change trend and the change range of the oil consumption cannot be reflected caused by the real-time display of the oil consumption of the vehicle by a digital real-time display and the real-time display of a progress bar in the prior art, and solves the technical problem that the change quantity of the instantaneous oil consumption corresponding to the driving behavior of a user cannot be reflected in real time in the latest 50km average oil consumption display mode. The technical problems that three display modes in the prior art are only simple data display and no energy consumption benchmark data or energy consumption benchmark graphic representation is provided for a user to refer to are solved. By means of the mode of giving the instantaneous energy consumption curve, a user can timely know the instantaneous energy consumption and the change trend of the instantaneous energy consumption, and the user can learn by combining the driving behavior and the change trend of the instantaneous energy consumption to form a good driving habit.
Drawings
FIG. 1 is a flow chart of a method for displaying an energy consumption profile provided by one embodiment of the present invention;
FIG. 2 is a diagram of a digital real-time display mode in the prior art;
FIG. 3 is a diagram illustrating a real-time display of a progress bar in the prior art;
FIG. 4 is a diagram illustrating an average fuel consumption display of the latest 50km in the prior art;
FIG. 5 is a schematic diagram of an energy consumption profile provided by one embodiment of the present invention;
FIG. 6 is a schematic diagram of a bezier curve used in the method for displaying an energy consumption curve according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of an energy consumption profile provided by one embodiment of the present invention;
FIG. 8 is a schematic illustration of a concatenation of instantaneous power consumption profiles from power consumption profiles provided by an embodiment of the present invention;
FIG. 9 is a schematic of the time intervals at which sample data can be consumed in FIG. 8;
FIG. 10 is a schematic diagram of the pre-processing process in the energy consumption profile provided by one embodiment of the present invention.
Detailed Description
The present invention is described in further detail below with reference to specific embodiments and the attached drawings. It is intended that the present invention not be limited to the particular embodiments disclosed, but that the present invention be limited only by the appended claims.
Referring to fig. 1, the present invention provides an energy consumption curve display method, including:
step S001, acquiring an instantaneous energy consumption curve, wherein the instantaneous energy consumption curve is acquired according to a current drawing point and a previous drawing point, and the number of sampling points between every two adjacent drawing points is the same;
the instantaneous power consumption curve, when displayed, shows two end points and a segment of the curve, as shown in fig. 5, actually including a sample point between the two plotted points when plotted.
Step S002, updating the energy consumption curve of the display area according to the instantaneous energy consumption curve, wherein the energy consumption curve is a set of instantaneous energy consumption curves of a plurality of equal-time values corresponding to different moments;
in step S002, the energy consumption curve of the display area is updated according to the instantaneous energy consumption curve, where the energy consumption curve is a set of instantaneous energy consumption curves of a plurality of equal-time values corresponding to different times;
displaying an energy consumption curve in a display area of the screen, for example, displaying 7 segments of instantaneous energy consumption curves with corresponding equal values at different times, as shown in fig. 5, where a rightmost point is a current instantaneous energy consumption value, the energy consumption curve is continuously shifted to the left, so that the rightmost point is the current instantaneous energy consumption value all the time, and the curve on the left is an energy consumption change process in the past several seconds, for example, in 3 s. Optionally, the energy consumption curve is a fuel consumption curve or a power consumption curve.
And S003, overlapping and displaying a historical average energy consumption display line on the energy consumption curve, wherein the historical average energy consumption display line displays the average energy consumption of the road section driven in a historical time period or displays the average energy consumption of the road section driven in the historical time period, which is the same as the current road section driven in the historical time period.
The historical average energy consumption display line displays the average energy consumption of the road section driven in a historical time period, such as the accumulated calculated energy consumption value from the vehicle factory or the instant energy consumption value after zero clearing.
And displaying the average energy consumption of the same road section as the current driving road section in a historical time period as the average value of the historical accumulated oil consumption of the same driving road section. Such as: if the current driving road section is from A (home) to B (company), acquiring all energy consumption from A (home) to B (company) in the historical time period, thereby acquiring a historical average energy consumption display line; or obtaining the energy consumption from A (home) to B (company) of the last few times in the historical period, thereby obtaining a historical average energy consumption display line.
In order to enable the user to more clearly see the high and low degrees of the power consumption value at this time, a historical average power consumption display line is displayed superimposed on the power consumption curve so that the user can more intuitively see the magnitude of the excess of the average value.
In practical use, for example, when a user steps on the accelerator relatively smoothly at the beginning, and steps on the accelerator suddenly and slowly after stepping on one foot suddenly, the oil consumption change trend corresponding to the stepping on the accelerator suddenly can be seen from the instantaneous oil consumption curve, and the overall oil consumption is much higher than that in the case of stable running. Through such instantaneous fuel consumption display, the user can distinguish and learn good driving habits.
The invention solves the technical problems that the change trend of the instantaneous oil consumption cannot be displayed and the change trend and the change range of the oil consumption cannot be reflected due to the fact that the oil consumption of the vehicle is displayed in real time by a digital real-time display mode and a progress bar real-time display mode in the prior art, solves the technical problem that the change quantity of the instantaneous oil consumption corresponding to the driving behavior of a user cannot be reflected in real time due to a recent 50km average oil consumption display mode, and also solves the technical problem that three display modes in the prior art are only simple data display and do not have any energy consumption reference data or energy consumption reference graphic for the user to refer to. By means of the mode of giving the instantaneous energy consumption curve, a user can timely know the instantaneous energy consumption and the change trend of the instantaneous energy consumption, and the user can learn by combining the driving behavior and the change trend of the instantaneous energy consumption to form a good driving habit.
In one embodiment, the obtaining of the instantaneous energy consumption curve according to the plot of the current time and the plot of the previous time comprises: the middle point of the drawing point at the current moment and the middle point of the drawing point at the previous moment in time is taken as a central point, the sampling points corresponding to the sampling moments which are symmetrical at the left side and the right side of the central point are taken as auxiliary drawing points, and the drawing point at the current moment, the drawing point at the previous moment and the auxiliary drawing points are used for drawing an instantaneous energy consumption curve.
When drawing instantaneous energy consumption curve, can get four points, be the plotting point of present moment, the plotting point and the drawing auxiliary point of last moment respectively, the drawing auxiliary point can be equidistant sampling point between the plotting point of present moment, the plotting point of last moment, also can select the sampling point that is nearer apart from the central point. By selecting the sampling points in this way, the drawn curve is smoother and more accurate.
Optionally, the instantaneous energy consumption curve is obtained by drawing energy consumption sampling data by adopting a bezier curve drawing method; the bezier curve is plotted as follows, as shown in fig. 6:
the curve drawing adopts a cubic bezier formula and requires 4 points (P)0,P1,P2,P3) The equation is as follows:
B(t)＝P0(1-t)3+3P1t(1-t)2+3P2t2(1-t)1+3P3t3,t∈[0,1]；
the curve plotting process is shown in FIG. 7, P0,P1,P2Is a point on the plotted curve, P0As a starting point, P2As the end point, the end point is,
at the point of time t.
At the time instant t of the time instant,
so t (t ∈ [0,1]]) At the moment of time, the time of day,
the coordinate equation of the three points is as follows:
is obtained by calculation
The equation is as follows:
handle [0,1]Dividing into n parts, starting from 0, increasing by 1/n each time until t is 1, and obtaining the point
The curve drawn by the set of (2) is the bezier curve.
In one embodiment, the obtaining of the instantaneous energy consumption curve according to the plot of the current time and the plot of the previous time comprises: and taking the drawing point at the current moment and the central point of the drawing point at the previous moment on time as drawing auxiliary points, and drawing the instantaneous energy consumption curve by using the drawing point at the current moment, the drawing point at the previous moment and the drawing auxiliary points.
The sampling point can select a drawing point at the current moment, a drawing point at the previous moment and a drawing auxiliary point, and the shape and the trend of a curve can be determined through the three points.
In one embodiment, the drawing assistance point further includes: and taking the middle point of the drawing point at the current moment and the drawing point at the previous moment in time as a central point, and taking sampling points corresponding to sampling moments which are symmetrical at the left side and the right side of the central point as auxiliary drawing points.
By selecting the sampling points in this way, the drawn curve is smoother and more accurate.
In one embodiment, updating the power consumption profile of the display area based on the instantaneous power consumption profile comprises:
and updating and displaying the instantaneous energy consumption curve at one end of the display area, and moving the instantaneous energy consumption curve at the other end, which is the longest distance from the current moment, out of the display area.
And updating the latest instantaneous energy consumption curve at one end, and moving the instantaneous energy consumption curve which is the longest from the current moment out of the display area at the other end so as to ensure the normal operation of the display area.
In one embodiment, when the instantaneous energy consumption curve is updated and displayed, the instantaneous energy consumption curve and the current energy consumption curve are drawn at the same time, the current energy consumption curve is not displayed in the display area during the updating, and the current energy consumption curve is used for preventing a screen flash or a blank space from occurring during the updating and displaying of the instantaneous energy consumption curve.
As shown in fig. 7, the right side a is the area to be updated, the left side B is the display area, the whole display time of the energy consumption curve is set to be (m × T/1000) s, the energy consumption curve is divided into m sections of instantaneous energy consumption curves to be displayed, so that the display area displays m-1 sections of instantaneous energy consumption curves, 1 section of instantaneous energy consumption curve is left to be used for updating the curve, the time of completing the movement is consistent with the time te [0,1] above, but the movement of the instantaneous energy consumption curve is completed, when the next section of instantaneous energy consumption curve is to be updated, the picture will form a section difference at the moment, the screen will flash or display blank, in order to solve the technical problem, two cache spaces are required to be prepared, the instantaneous energy consumption curve and the predicted energy consumption curve are drawn by the two cache spaces at the same time, the predicted energy consumption curve is not displayed in a display area during updating, and the predicted energy consumption curve is used for preventing a screen flash or a blank space from occurring during updating and displaying of the instantaneous energy consumption curve.
In one embodiment, when the energy consumption curve of the display area is updated according to the instantaneous energy consumption curve, the previous instantaneous energy consumption curve is spliced with the current instantaneous energy consumption curve;
and if the last drawing point, the forward sampling point and the backward energy sampling point are on the same straight line, the last drawing point, the forward sampling point and the backward energy sampling point are directly spliced, otherwise, the last drawing point, the forward sampling point and the backward energy sampling point are preprocessed and then spliced.
When drawing a curve, in order to ensure the curve transition to be smooth, if the last drawing point, the forward sampling point and the backward sampling point are on the same straight line, the last drawing point, the forward sampling point and the backward sampling point are spliced directly, otherwise, the last drawing point, the forward sampling point and the backward sampling point are spliced after being preprocessed. The drawing mode mainly adopts a bezier curve drawing method.
In one embodiment thereof, the pre-processing comprises: the forward and backward samples are connected in a straight line and translated through the last plot.
Taking the example of drawing by adopting a bezier curve drawing method, energy consumption data are sampled at intervals, four energy consumption sampling data are taken, the time intervals among the four energy consumption sampling data are the same, or the time interval between the 2 nd and the 3 rd energy consumption sampling data in the four energy consumption sampling data is larger than the time intervals among other energy consumption sampling data.
The curve drawing adopts a cubic bezier formula, 4 points are needed for drawing, and the time intervals among the 4 energy consumption sampling data can be the same.
In order to ensure that the splicing position is smoother when the two sections of instantaneous energy consumption curves are spliced, the time interval between the 2 nd energy consumption sampling data and the 3 rd energy consumption sampling data in the four energy consumption sampling data can be larger than the time interval between other energy consumption sampling data.
As shown in fig. 8, let four points on the first section of the instantaneous energy consumption curve be (P0, P1, P2, P3), and 4 points on the second section of the instantaneous energy consumption curve be (P0', P1', P2', P3'), when two curves are spliced, it is necessary to make P2, P3(P0'), and P1' be in a straight line, so as to make the spliced part smooth.
As shown in fig. 10, from the energy consumption sample data obtained by actual sampling, P2, P3(P0'), P1' has a low possibility of being in a straight line, so that the points P2, P1' need to be adjusted, for example: firstly, connecting P2 and P1' into a straight line; the segment P2P1 'is moved in parallel past the point P3(P0'), where P2, P3(P0'), and P1' are in a straight line. The purpose of making the time interval between the 2 nd and 3 rd energy consumption sample data of the four energy consumption sample data larger than the time interval between other energy consumption sample data is to ensure that P2, P3(P0'), and P1' can be adjusted to be a straight line, so that the two curves are in transition smoothness when being spliced.
The sampling interval of the energy consumption sample data is shown in fig. 9. T in Tms is the time period of an instantaneous power consumption profile.
In one embodiment, the preprocessing step further comprises: and zooming the translated straight line by taking the last drawing point as a center to adjust the smoothness of the splicing part.
If the smoothness of the two curves at the joint is not good enough, the translated straight line can be zoomed by taking the last drawing point as the center to adjust the smoothness of the joint. And adjusting according to actual display to make the curve smoother.
In one embodiment, the energy consumption curve is one of an oil consumption curve and an electricity consumption curve.
The scheme provided by the embodiment is suitable for displaying the oil consumption curve and the power consumption curve.
In one embodiment, the portion of the energy consumption profile exceeding the historical average energy consumption display line is different from other portions of the energy consumption profile in at least one of line type, line thickness, line color, fill color.
By adopting different line types, line thicknesses, line colors or filling colors, the part of the energy consumption curve exceeding the historical average energy consumption display line is more striking, and the energy consumption curve is clear for a user.
Alternatively, the historical average energy consumption display line is shown as a dotted line, and the portion of the energy consumption curve that exceeds the historical average energy consumption display line is displayed in a distinctive color.
In order to display more intuitively, the part of the energy consumption curve exceeding the historical average energy consumption display line is displayed by adopting a distinguishing color. Meanwhile, the historical average energy consumption display line is represented by a dotted line, so that the display of an energy consumption curve is not interfered. Alternatively, yellow is used as the distinguishing color. The part of the energy consumption curve exceeding the historical average energy consumption display line is displayed in a distinguishing color mode, so that a user can feel information with higher energy consumption more intuitively, and the user is guided to form good driving habits.
Optionally, corresponding data of energy consumption and vehicle speed is recorded, and an optimal energy consumption route is calculated by combining navigation data. The optimal driving route can be recommended at present according to the big data, and the optimal energy consumption route can be recommended according to the big data in combination with the recommended driving route, the vehicle speed information and the like.
In one embodiment, when a part exceeding the historical average energy consumption display line appears in the energy consumption curve, the number of wave crests corresponding to the part exceeding the historical average energy consumption display line in the energy consumption curve is recorded, the number of wave crests is accumulated to obtain the number of accumulated wave crests, and the number of accumulated wave crests is displayed in a display area where the energy consumption curve is located.
The number of the wave crests corresponding to the part exceeding the historical average energy consumption display line in the energy consumption curve is presented for the user, so that the user can intuitively know the number of the wave crests consumed by the energy consumption caused by the driving habit of the user in a period of time.
In one embodiment, the energy consumption value corresponding to the part of the energy consumption curve exceeding the historical average energy consumption display line is further calculated, the energy consumption values are accumulated and overlapped to obtain an accumulated energy consumption value, and the accumulated energy consumption value is displayed in the display area where the energy consumption curve is located.
And displaying the accumulated energy consumption value in a display area where the energy consumption curve is located, so that the customer can see the total amount of the energy consumed due to bad driving habits.
The invention also provides an energy consumption curve display method, which comprises the following steps:
acquiring an instantaneous energy consumption curve, wherein the instantaneous energy consumption curve is obtained by drawing energy consumption sampling data by adopting a bezier curve drawing method; the bezier curve drawing method needs four energy consumption sampling data, and the time interval between the 2 nd and 3 rd energy consumption sampling data in the four energy consumption sampling data is larger than the time interval between other energy consumption sampling data;
updating an energy consumption curve of the display area according to the instantaneous energy consumption curve, wherein the energy consumption curve is a set of instantaneous energy consumption curves of equal-time values corresponding to a plurality of different moments; when the instantaneous energy consumption curve is updated and displayed, the instantaneous energy consumption curve and the predicted energy consumption curve are drawn at the same time, the predicted energy consumption curve is not displayed in a display area during the updating, and the predicted energy consumption curve is used for preventing a screen flash or a blank space from occurring during the updating and displaying of the instantaneous energy consumption curve; when the energy consumption curve of the display area is updated according to the instantaneous energy consumption curve, the last instantaneous energy consumption curve and the current instantaneous energy consumption curve need to be spliced, if the last two sampling points in the last instantaneous energy consumption curve and the first two sampling points in the current instantaneous energy consumption curve are on the same straight line, the last two sampling points and the first two sampling points are directly spliced, and if not, the last two sampling points and the first two sampling points in the current instantaneous energy consumption curve need to be spliced after a preprocessing step. The pretreatment step comprises the following steps: and translating the straight line after the 3 rd sampling point in the last instantaneous energy consumption curve is connected with the 2 nd sampling point in the current instantaneous energy consumption curve, so that the straight line passes through the 1 st sampling point of the current instantaneous energy consumption curve. The pretreatment step further comprises: and scaling the translated straight line by taking the 1 st sampling point in the current instantaneous energy consumption curve as a center so as to adjust the smoothness of the spliced part.
And superposing and displaying a historical average energy consumption display line on the energy consumption curve.
The embodiment enables the user to know the energy consumption corresponding to the current action by displaying the instantaneous energy consumption curve so as to train the good driving habit of the user.
The invention further provides a vehicle, which adopts the energy consumption curve display method provided by any one of the embodiments, and when a part exceeding a historical average energy consumption display line appears in the energy consumption curve, the vehicle information at the moment corresponding to the exceeding part is acquired, wherein the vehicle information comprises: one or more combinations of speed information, brake information and throttle information; and in a preset frequency time period, if one or more of the vehicle information exceeds the corresponding preset value, displaying the frequency of the one or more vehicle information exceeding the preset value in a display area where the energy consumption curve is located.
By providing the speed information, the braking information and the accelerator information, a user can know the vehicle information corresponding to the moment with high energy consumption, the user can know the data corresponding to the speed information, the braking information and the accelerator information at a glance, and the frequency is displayed in a display area where an energy consumption curve is located, so that the user can know the total number of exceeding times.
The invention further provides a vehicle, and by adopting the consumption curve display method provided by any one of the embodiments, if the energy consumption curve is continuously located above the historical average energy consumption display line in a preset time period or the accumulated number of wave peaks located above the historical average energy consumption display line on the energy consumption curve in the preset time period exceeds a preset wave peak value, the mode of the vehicle is switched to the economic mode.
And if the energy consumption curve is continuously positioned above the historical average energy consumption display line in a preset time period or the accumulated number of wave peaks positioned above the historical average energy consumption display line on the energy consumption curve in the preset time period exceeds a preset wave peak value, namely the vehicle is continuously in a high energy consumption state, and if the oil consumption is higher than 15L/100km, the engine is switched to an economy mode (ECO mode). Specifically, a sustained high fuel consumption ok signal is sent to the ECM via the CAN bus, and the ECM actively switches the engine to the ECO mode. Optionally, the user is provided with an option of whether to switch before switching the engine to the economy mode. By switching the engine to the economy mode, the energy consumption of the vehicle is reduced.
Alternatively, the vehicle may decide whether to switch to the ECO mode by determining whether or not the following condition is satisfied (i) the gradient does not exceed a specific gradient; secondly, the engine is warmed up; no important part fault exists; the CAN communication is normal; receiving no command of forbidding the related part to enter the ECO mode; and sixthly, the cruise control system does not work in the cruise mode, and can be switched to the ECO mode when the conditions are met.
In one embodiment, when the energy consumption mode is switched to the economy mode, the energy consumption exceeding the historical average energy consumption display line or the accumulated number of peaks above the historical average energy consumption display line in the preset time period is displayed in the display area where the energy consumption curve is located. For a preset period of time such as 10 minutes, 1 hour, etc.
The energy consumption exceeding the historical average energy consumption display line or the accumulated number of wave crests above the historical average energy consumption display line in the preset time period is displayed in the display area where the energy consumption curve is located, so that a user can clearly see the energy consumption data, and good driving habits are developed.
The foregoing is considered as illustrative only of the principles and preferred embodiments of the invention. It should be noted that, for those skilled in the art, several other modifications can be made on the basis of the principle of the present invention, and the protection scope of the present invention should be regarded.
Claims (16)
1. A method for displaying an energy consumption profile, comprising:
acquiring an instantaneous energy consumption curve, wherein the instantaneous energy consumption curve is acquired according to a drawing point at the current moment and a drawing point at the previous moment, and the number of sampling points between every two adjacent drawing points is the same;
updating an energy consumption curve of the display area according to the instantaneous energy consumption curve, wherein the energy consumption curve is a set of instantaneous energy consumption curves of equal-time values corresponding to a plurality of different moments;
and superposing and displaying a historical average energy consumption display line on the energy consumption curve, wherein the historical average energy consumption display line displays the average energy consumption of the road section driven in a historical time period or displays the average energy consumption of the road section driven in the historical time period, which is the same as the current road section driven in the historical time period.
2. The energy consumption profile display method according to claim 1,
the obtaining of the instantaneous energy consumption curve according to the plot at the current moment and the plot at the previous moment comprises: the middle point of the drawing point at the current moment and the middle point of the drawing point at the previous moment in time is taken as a central point, the sampling points corresponding to the sampling moments which are symmetrical at the left side and the right side of the central point are taken as auxiliary drawing points, and the drawing point at the current moment, the drawing point at the previous moment and the auxiliary drawing points are used for drawing an instantaneous energy consumption curve.
3. The energy consumption curve display method according to claim 1, wherein:
the obtaining of the instantaneous energy consumption curve according to the plot at the current moment and the plot at the previous moment comprises: and taking the drawing point at the current moment and the central point of the drawing point at the previous moment on time as drawing auxiliary points, and drawing the instantaneous energy consumption curve by using the drawing point at the current moment, the drawing point at the previous moment and the drawing auxiliary points.
4. The energy consumption curve display method according to claim 3, wherein:
the drawing auxiliary point further comprises: and taking the middle point of the drawing point at the current moment and the drawing point at the previous moment in time as a central point, and taking sampling points corresponding to sampling moments which are symmetrical at the left side and the right side of the central point as auxiliary drawing points.
5. The energy consumption profile display method according to claim 1,
updating the power consumption profile of the display area according to the instantaneous power consumption profile includes:
and updating and displaying the instantaneous energy consumption curve at one end of the display area, and moving the instantaneous energy consumption curve at the other end, which is the longest distance from the current moment, out of the display area.
6. The energy consumption profile display method according to claim 5,
when the instantaneous energy consumption curve is updated and displayed, the instantaneous energy consumption curve and the current energy consumption curve are drawn at the same time, the current energy consumption curve is not displayed in a display area during the updating, and the current energy consumption curve is used for preventing a screen flash or a blank space from occurring during the updating and displaying of the instantaneous energy consumption curve.
7. The energy consumption profile display method according to claim 1,
when the energy consumption curve of the display area is updated according to the instantaneous energy consumption curve, the previous instantaneous energy consumption curve is spliced with the current instantaneous energy consumption curve;
and if the last drawing point, the forward sampling point and the backward energy sampling point are on the same straight line, the last drawing point, the forward sampling point and the backward energy sampling point are directly spliced, otherwise, the last drawing point, the forward sampling point and the backward energy sampling point are preprocessed and then spliced.
8. The energy consumption profile display method according to claim 7,
the pretreatment comprises the following steps: the forward and backward samples are connected in a straight line and translated through the last plot.
9. The energy consumption profile display method according to claim 8,
the pretreatment step further comprises: and zooming the translated straight line by taking the last drawing point as a center to adjust the smoothness of the splicing part.
10. The energy consumption profile display method according to claim 1,
the energy consumption curve is one of an oil consumption curve and an electricity consumption curve.
11. The energy consumption profile display method according to claim 1,
at least one of a line type, a line thickness, a line color, and a filling color corresponding to a portion of the power consumption curve that exceeds the historical average power consumption display line is different from other portions of the power consumption curve.
12. The energy consumption curve display method according to claim 1, wherein:
when the part exceeding the historical average energy consumption display line appears in the energy consumption curve, the number of wave crests corresponding to the part exceeding the historical average energy consumption display line in the energy consumption curve is recorded, the number of the wave crests is accumulated to obtain the number of accumulated wave crests, and the number of the accumulated wave crests is displayed in a display area where the energy consumption curve is located.
13. The energy consumption curve display method according to claim 12, wherein:
and further calculating energy consumption values corresponding to the parts of the energy consumption curves exceeding the historical average energy consumption display line, accumulating and superposing the energy consumption values to obtain accumulated energy consumption values, and displaying the accumulated energy consumption values in a display area where the energy consumption curves are located.
14. A vehicle employing the energy consumption profile displaying method according to any one of claims 1 to 13, wherein when a portion exceeding a historical average energy consumption display line appears in the energy consumption profile, vehicle information at a time corresponding to the exceeding portion is acquired, the vehicle information comprising: one or more combinations of speed information, brake information and throttle information; and in a preset frequency time period, if one or more of the vehicle information exceeds the corresponding preset value, displaying the frequency of the one or more vehicle information exceeding the preset value in a display area where the energy consumption curve is located.
15. A vehicle employing the energy consumption profile display method according to any one of claims 1 to 13, characterized in that:
and if the energy consumption curve is continuously positioned above the historical average energy consumption display line in the preset time period or the accumulated number of wave peaks positioned above the historical average energy consumption display line on the energy consumption curve in the preset time period exceeds a preset wave peak value, switching the mode of the vehicle to the economic mode.
16. The vehicle of claim 15, wherein when switching to the economy mode, the energy consumption exceeding the historical average energy consumption display line or the cumulative number of peaks above the historical average energy consumption display line within a preset time period is displayed in a display area where the energy consumption curve is located.
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