CN108583558A - Automobile brake method, system, mobile terminal and storage medium - Google Patents
Automobile brake method, system, mobile terminal and storage medium Download PDFInfo
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- CN108583558A CN108583558A CN201810289199.2A CN201810289199A CN108583558A CN 108583558 A CN108583558 A CN 108583558A CN 201810289199 A CN201810289199 A CN 201810289199A CN 108583558 A CN108583558 A CN 108583558A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
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- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The present invention provides a kind of automobile brake method, system, mobile terminal and storage medium, methods to include：When receiving brake signal, braking processing is carried out to automotive wheel, and obtain the current brake data of automotive wheel in real time in preset time；Real-time braking curve is drawn according to current brake data, and real-time braking curve and default braking curve are fitted comparison, to obtain multiple fluctuation differences；When determining fluctuation difference more than preset difference value, the corresponding coordinate points of fluctuation difference on real-time braking curve are identified label；When the quantity for judging the mark label on real-time braking curve is more than preset quantity, label alarm is sent out；Calculate the sum of the absolute value of all fluctuation differences, to obtain current degree of fitting, and when current degree of fitting is more than first threshold, send out alarm, the present invention is designed by the structure of real-time braking curve and the fitting of default braking curve, so that whether the braking ability of real-time judgment automobile is normal.
Description
Technical field
The present invention relates to automobile technical field, more particularly to a kind of automobile brake method, system, mobile terminal and storage are situated between
Matter.
Background technology
Brake system of car plays an important role to the safety of automobile, is one of the focus of automotive safety Journal of Sex Research.Mesh
Before, the critical piece in brake system of car has brake pedal, vacuum booster, master cylinder, wheel cylinder and brake.People passes through
The power for stepping on brake pedal generation is amplified by vacuum booster, then acts on master cylinder, which leads to after master cylinder
The form for crossing hydraulic energy passes to wheel cylinder, and is further amplified, this last section hydraulic can act on brake, brake action
To wheel with brake force, make automobile brake.Braking system is mainly used for reducing the travel speed of vehicle or makes its stopping, to protect
A particularly important component for vehicle safe driving is demonstrate,proved, and the braking ability of braking system is then reaction vehicle stopping power
One index, therefore people increasingly pay attention to the performance issue of brake system of car.
However, with vehicle usage time it is growing, braking ability can constantly be deteriorated, and existing general side
Formula mostly judges whether its braking system is examined by the driving experience of driver or by the stroke mileage of vehicle
It repaiies, the former subjectivity is strong, and then affected factor is more by the latter, and the precision that the two judges is relatively low, is unfavorable for vehicle
Safety traffic, especially for the automobile for loading more passenger, the real-time detection of braking ability, which is more advantageous to, improves its safety
Traveling.
Invention content
Based on this, the embodiment of the present invention is designed to provide a kind of automobile brake side of real-time detection automobile brake perfrmance
Method, system, mobile terminal and storage medium.
In a first aspect, the present invention provides a kind of automobile brake method, the method includes：
When receiving brake signal, braking processing is carried out to automotive wheel, and in preset time described in acquisition in real time
The current brake data of automotive wheel；
Real-time braking curve is drawn according to the current brake data, and the real-time braking curve and default braking is bent
Line is fitted comparison, to obtain multiple fluctuation differences；
When determining the fluctuation difference more than preset difference value, by the fluctuation difference pair on the real-time braking curve
The coordinate points answered are identified label；
When the quantity for judging the mark label on the real-time braking curve is more than preset quantity, label police is sent out
Report；
The sum for calculating the absolute value of all fluctuation differences to obtain current degree of fitting, and works as the current degree of fitting
When more than first threshold, alarm is sent out.
Above-mentioned automobile brake method, by building the real-time braking curve, so that the braking ability of real-time judgment automobile
It is whether normal, by the acquisition of the current brake data, to have ensured that the real-time braking curve is drawn, and by will be described
Real-time braking curve is fitted comparison with the default braking curve, to have ensured the calculating of the fluctuation difference, passes through institute
The judgement for stating the quantity and the preset quantity of mark label, to decide whether to carry out the transmission of the label alarm, and it is logical
The calculating of the current degree of fitting is crossed to decide whether to carry out the transmission of the alarm, passes through the hair of the label alarm
It send, it is larger with the braking ability fluctuation for prompting user's automobile current, by the transmission of the alarm, to prompt user's automobile
Current braking ability is poor, need to be detected or repair in time.
Further, the step of current brake data for obtaining the automotive wheel in real time in preset time are wrapped
It includes：
Obtain the current driving speed of the automotive wheel, the current operation of brake pedal in real time in the preset time
The current hydraulic coupling of angle and brake piping, and by the current driving speed got, the current operation angle and institute
State that current hydraulic coupling is corresponding with the current brake time respectively to be stored.
Further, described the step of drawing real-time braking curve according to the current brake data, includes：
Variation number of the current driving speed with the current brake time is sequentially obtained by default rotational angle interval
According to, and draw travel speed-braking time change curve according to result is obtained；
Variation of the current driving speed with the current operation angle is sequentially obtained according to the first prefixed time interval
Data, and draw travel speed-rotational angle change curve according to result is obtained.
Further, described the step of drawing real-time braking curve according to the current brake data, includes：
The present speed change rate in the preset time is calculated separately according to the current driving speed, and according to second
Prefixed time interval sequentially obtains delta data of the present speed change rate with the current operation angle, and according to acquisition
As a result velocity variations-rotational angle change curve is drawn.
Further, described the step of drawing real-time braking curve according to the current brake data, further includes：
Variation of the present speed change rate with the current braking effort is sequentially obtained according to third prefixed time interval
Data, and draw velocity variations-brake force change curve according to result is obtained.
Further, described that the real-time braking curve and default braking curve are fitted comparison, it is multiple to obtain
The step of fluctuation difference includes：
Obtain current data coordinate points all on the real-time braking curve respectively, and by the current data coordinate points
Standard coordinate point corresponding on the default braking curve carries out mathematic interpolation, to obtain the fluctuation difference.
Further, described the step of sending out alarm, includes：
Preinstalled circuit port is inquired, and electric signal is sent to the preinstalled circuit port, with control and the default port
On alarm, buzzer and/or alarm lamp work；
The network port is preset in inquiry, and sends alarm signal to the default network port, to control the default network
The corresponding terminal device in port receives the alarm signal.
Second aspect, the present invention provides a kind of brake system of car, including：
Brake module, for when receiving brake signal, carrying out braking processing to automotive wheel, and in preset time
The current brake data of the automotive wheel are obtained in real time；
Performance detection module, for drawing real-time braking curve according to the current brake data, and by the real-time system
Moving curve is fitted comparison with default braking curve, to obtain multiple fluctuation differences；
Mark module, for when determine the fluctuation difference more than preset difference value when, will be on the real-time braking curve
The corresponding coordinate points of the fluctuation difference are identified label；
First alarm module, for being preset when the quantity for judging the mark label on the real-time braking curve is more than
When quantity, label alarm is sent out；
Second alarm module calculates all fluctuation differences for the testing result according to the performance detection module
Absolute value sum, to obtain current degree of fitting, and when the current degree of fitting is more than first threshold, send out alarm.
Above-mentioned brake system of car, by building the real-time braking curve, so that the braking ability of real-time judgment automobile
It is whether normal, by the acquisition of the current brake data, to have ensured that the real-time braking curve is drawn, and by will be described
Real-time braking curve is fitted comparison with the default braking curve, to have ensured the calculating of the fluctuation difference, passes through institute
The judgement for stating the quantity and the preset quantity of mark label, to decide whether to carry out the transmission of the label alarm, and it is logical
The calculating of the current degree of fitting is crossed to decide whether to carry out the transmission of the alarm, passes through the hair of the label alarm
It send, it is larger with the braking ability fluctuation for prompting user's automobile current, by the transmission of the alarm, to prompt user's automobile
Current braking ability is poor, need to be detected or repair in time.
The third aspect, the present invention provides a kind of mobile terminal, including memory and processor, the memory is used for
Computer program is stored, the processor runs the computer program so that the above-mentioned automobile brake of the mobile terminal execution
Method.
Fourth aspect is stored thereon with processor in above-mentioned mobile terminal and is transported the present invention provides a kind of storage medium
Capable computer program.
Description of the drawings
Fig. 1 is the flow chart for the automobile brake method that first embodiment of the invention provides；
Fig. 2 is the flow chart for the automobile brake method that second embodiment of the invention provides；
Fig. 3 is the structural schematic diagram for the brake system of car that third embodiment of the invention provides；
Fig. 4 is the structural schematic diagram for the brake system of car that fourth embodiment of the invention provides；
Essential element symbol description
| Brake system of car | 100,100a | Brake module | 10 |
| Performance detection module | 20 | First drafting module | 21 |
| Second drafting module | 22 | Third drafting module | 23 |
| 4th drafting module | 24 | Difference calculating module | 25 |
| Mark module | 30 | First alarm module | 40 |
| First alarm unit | 41 | Second alarm unit | 42 |
| Second alarm module | 50 |
Specific implementation mode
For the ease of more fully understanding the present invention, the present invention is carried out further below in conjunction with related embodiment attached drawing
It explains.The embodiment of the present invention is given in attached drawing, but the present invention is not limited in above-mentioned preferred embodiment.On the contrary, providing
The purpose of these embodiments be in order to make disclosure of the invention face more fully.
Referring to Fig. 1, the flow chart of the automobile brake method provided for first embodiment of the invention, including step S10 is extremely
S50。
Step S10 carries out braking processing, and in preset time in real time when receiving brake signal to automotive wheel
Obtain the current brake data of the automotive wheel；
Wherein, electric signal, infrared signal, push button signalling, pressure signal or wireless signal can be used in the brake signal
Mode is transmitted, the current brake data include at least the rotational angle of brake pedal, the travel speed in braking process,
The number such as hydraulic coupling of brake piping in the brake force of checking cylinder and braking process in braking time, braking process in braking process
According to.
Step S20 draws real-time braking curve according to the current brake data, and by the real-time braking curve and in advance
It is equipped with moving curve and is fitted comparison, to obtain multiple fluctuation differences；
Wherein, by the acquisition of shown current brake data, the real-time braking curve of braking ability, structure are embodied with component
Real-time braking curve can reflect the current braking ability of the automobile to a certain degree；And for the ease of being carried out to automobile brake perfrmance
Accurately judge, it can be by carrying out real-time judge, you can setting default braking curve corresponding with real-time braking curve, and will
Real-time braking curve and default braking curve are fitted comparison, when the degree of fitting of the two is within setting range, then illustrate
The current braking ability of automobile is preferable, disclosure satisfy that practical braking requirement, and when the degree of fitting of the two exceeds setting range, then
Illustrate that the current brake performance of automobile is poor, needs to be overhauled in time.
The present embodiment is when real-time braking curve is built, in order to improve precision and the accuracy of braking ability judgement, this reality
Apply the real-time braking curve of example can build it is multiple, specifically, the real-time braking curve of the present embodiment be included in setting rotational angle under
For travel speed with the change curve of braking time, i.e., the brake pedal that ought be detected turns to a fixed angles in a relatively short period of time
When spending, and when larger fluctuation does not occur for its rotational angle within a certain period of time, such as：When certain braking, stepped in inside brake in 0.5 second
After plate rotates 30 °, and 30 ° or so are maintained in the rotational angle of 2~3 seconds inside brake pedals, is then travelled in the braking time section
Speed can be reflected in braking ability of the brake pedal under 30 ° of rotational angles with the change curve of braking time, and by above-mentioned change
Change curve and corresponding default braking curve is fitted comparison, then can determine whether that the braking ability under the setting rotational angle is
It is no to meet the requirements.
Step S30, when determining the fluctuation difference more than preset difference value, by the wave on the real-time braking curve
The corresponding coordinate points of moment value are identified label；
Wherein, when determining the fluctuation difference more than preset difference value, then judge the braking ability fluctuation of current automobile
It is larger, and by the way that corresponding coordinate points are marked, so as to facilitate checking and analyzing for subsequent customer data, improve use
Family experience effectively plays the role of warning to user.
Step S40, when the quantity for judging the mark label on the real-time braking curve is more than preset quantity, hair
Go out to mark alarm；
Wherein, the preset quantity can be any number, which is the pre-set numerical value of user, described default
Quantity for judging whether the fluctuation of the braking function of automobile normal, when the quantity for determining the mark label be more than it is described pre-
If when quantity, then judging that the fluctuation of the braking function of current automobile is abnormal, and then the label alarm is sent, to prompt user
Subsequently it is detected.
Step S50 calculates the sum of the absolute value of all fluctuation differences, to obtain current degree of fitting, and works as when described
When preceding degree of fitting is more than first threshold, alarm is sent out.
In the present embodiment, by building the real-time braking curve, so that just whether the braking ability of real-time judgment automobile
Often, by the acquisition of the current brake data, to have ensured that the real-time braking curve is drawn, and by by the real-time system
Moving curve is fitted comparison with the default braking curve, to have ensured the calculating of the fluctuation difference, passes through the mark
The judgement of the quantity of label and the preset quantity, to decide whether to carry out the transmission of the label alarm, and by described
The calculating of current degree of fitting is to decide whether to carry out the transmission of the alarm, the transmission alarmed by the label, with
The braking ability fluctuation for prompting user's automobile current is larger, by the transmission of the alarm, to prompt user's automobile current
Braking ability it is poor, need to be detected or repair in time.
Referring to Fig. 2, the flow chart of the automobile brake method provided for second embodiment of the invention, the method includes steps
Rapid S11 to S81.
Step S11 carries out braking processing, and in preset time in real time when receiving brake signal to automotive wheel
Obtain current driving speed, the current hydraulic coupling of the current operation angle of brake pedal and brake piping of automotive wheel；
Wherein, electric signal, infrared signal, push button signalling, pressure signal or wireless signal can be used in the brake signal
Mode is transmitted, the current brake data include at least the rotational angle of brake pedal, the travel speed in braking process,
The number such as hydraulic coupling of brake piping in the brake force of checking cylinder and braking process in braking time, braking process in braking process
According to.
Step S21, by the current driving speed got, the current operation angle and the current hydraulic coupling point
It is not corresponding with the current brake time to be stored；
Wherein, the angular transducer of the current operation angle for detecting brake pedal is included at least in the present embodiment, is used
In the velocity sensor of detection current driving speed, the pressure sensor of current braking effort by detecting brake bar, based on
Calculate the timer of current brake time and for by the current driving speed got, the current operation angle and described
The current hydraulic coupling memory stored corresponding with the current brake time respectively.
Step S31 sequentially obtains the current driving speed with the current brake time by default rotational angle interval
Delta data, and according to obtain result draw travel speed-braking time change curve；
The real-time braking curve of the present embodiment is included in change curve of the setting rotational angle downward driving speed with braking time,
I.e. when the brake pedal detected turns to a fixed angle in a relatively short period of time, and its rotational angle within a certain period of time
When larger fluctuation not occurring, such as：When certain braking, after 0.5 second inside brake pedal rotates 30 °, and in inside brake in 2~3 seconds
The rotational angle of pedal maintains 30 ° or so, then the braking time section travel speed can be anti-with the change curve of braking time
Reflect the braking ability under 30 ° of rotational angles in brake pedal, and by above-mentioned change curve by corresponding default braking curve
It is fitted comparison, then can determine whether the braking ability under the setting rotational angle meets the requirements.
Preferably, default braking curve corresponding with the above-mentioned change curve under 30 ° of rotational angles is：In mark
Under the conditions of quasi- braking ability, brake pedal rotational angle is the automobile driving speed versus time curve under 30 °, and then quasi-
When closing comparison, generally by real-time braking curve and initial velocity before and after being braked in default braking curve and the identical part of end speed
It is fitted comparison；
Step S41 sequentially obtains the current driving speed with the current pivot angle according to the first prefixed time interval
The delta data of degree, and draw travel speed-rotational angle change curve according to result is obtained；
Wherein, the change curve of the travel speed of automobile in braking process with the rotational angle of brake pedal can be also built,
Since brake pedal necessarily has a variation there are one rotational angle in braking process, and the rotational angle of brake pedal and automobile
Change curve between travel speed can then accurately reflect the change in braking process between the transformation and travel speed of brake pedal
Change, can be used for judging braking susceptibility of the automobile in braking process, is conducive to improve what team's automobile brake perfrmance judged
Precision, wherein travel speed is then with the corresponding default braking curve of change curve of rotational angle：It is braked in standard
Under performance condition, and under identical initial velocity, the variation between the rotational angle of brake pedal and the travel speed of automobile is bent
Line.
Step S51 calculates separately the present speed change rate in the preset time according to the current driving speed, and
Delta data of the present speed change rate with the current operation angle is sequentially obtained according to the second prefixed time interval, and
Velocity variations-rotational angle change curve is drawn according to result is obtained；
Wherein, travel speed change rate can also be built with the change curve of the rotational angle of brake pedal, it can be further
Comparison judge the braking susceptibility of automobile, fitting comparison condition is with travel speed with the condition of the change curve of rotational angle
It is essentially identical, therefore do not repeat, wherein above-mentioned travel speed change rate refers to that brake pedal constantly becomes in rotational angle
The percentage speed variation of the travel speed of automobile in the period of change, can more accurately reflect braking ability.
It should be understood that the present embodiment can also build travel speed with the brake force of checking cylinder change curve, traveling speed
Spend change curve of the change rate with the change curve of the brake force of checking cylinder, travel speed with the hydraulic coupling of brake piping, traveling
Percentage speed variation with the hydraulic coupling of brake piping change curve, can driving force variation and travel speed and travel speed become
Relationship between rate, and then convenient for judging whether the variation of the braking ability caused by the transmission of checking cylinder or brake piping.
Step S61 sequentially obtains the present speed change rate with the current brake according to third prefixed time interval
The delta data of power, and draw velocity variations-brake force change curve according to result is obtained；
Step S71 will sail speed-braking time change curve, travel speed-rotational angle change curve, speed respectively
Variation-rotational angle change curve and velocity variations-brake force change curve and corresponding default braking curve are fitted pair
Than to obtain multiple fluctuation differences；
Wherein, described respectively by travel speed-braking time change curve, travel speed-rotational angle change curve, speed
Degree variation-rotational angle change curve and velocity variations-brake force change curve are fitted with corresponding default braking curve
The step of comparison includes：
Travel speed-braking time change curve, travel speed-rotational angle change curve, velocity variations-are obtained respectively
All current data coordinate points on rotational angle change curve and velocity variations-brake force change curve, and will be described current
Data coordinates point standard coordinate point corresponding on the default braking curve carries out mathematic interpolation, poor to obtain the fluctuation
Value.
Step S81 calculates the sum of the absolute value of all fluctuation differences, to obtain the current degree of fitting, and works as institute
When stating current degree of fitting more than first threshold, alarm is sent out；
Specifically, the step of sending out alarm described in the present embodiment includes：
Preinstalled circuit port is inquired, and electric signal is sent to the preinstalled circuit port, with control and the default port
On alarm, buzzer and/or alarm lamp work；
The network port is preset in inquiry, and sends alarm signal to the default network port, to control the default network
The corresponding terminal device in port receives the alarm signal.
In the present embodiment, by building the real-time braking curve, so that just whether the braking ability of real-time judgment automobile
Often, by the acquisition of the current brake data, to have ensured that the real-time braking curve is drawn, and by by the real-time system
Moving curve is fitted comparison with the default braking curve, to have ensured the calculating of the fluctuation difference, passes through the mark
The judgement of the quantity of label and the preset quantity, to decide whether to carry out the transmission of the label alarm, and by described
The calculating of current degree of fitting is to decide whether to carry out the transmission of the alarm, the transmission alarmed by the label, with
The braking ability fluctuation for prompting user's automobile current is larger, by the transmission of the alarm, to prompt user's automobile current
Braking ability it is poor, need to be detected or repair in time.
Referring to Fig. 3, the structural schematic diagram of the brake system of car 100 provided for third embodiment of the invention, including：
Brake module 10, for when receiving brake signal, carrying out braking processing to automotive wheel, and in preset time
The current brake data of the automotive wheel are inside obtained in real time, the brake apparatus of conventional vehicles can be used in the brake module 10,
It is generally mainly made of brake pedal, checking cylinder, brake piping, brake etc., can by manpower drive brake pedal into
And control brake effect in travelling car deceleration or parking, in addition the brake module 10 can detect and brake in real time
The real-time braking-distance figures formed in journey, for example, travel speed in the rotational angle of brake pedal, braking process, in braking process
Braking time, data such as hydraulic coupling of brake piping in the brake force of checking cylinder and braking process in braking process.
Preferably, the brake module 10 includes at least the angle sensor of the current operation angle for detecting brake pedal
Device, the velocity sensor for detecting current driving speed, the pressure sensor of the current braking effort for detecting brake bar, use
In calculate the current brake time timer and for by the current driving speed got, the current operation angle and
The current hydraulic coupling memory stored corresponding with the current brake time respectively.
Specifically, for the ease of the acquisition of real-time braking-distance figures, the present embodiment is by being arranged angular transducer for reality
When detect brake pedal current operation angle, i.e., when braking, when stepping on brake pedal by foot, angular transducer obtains in real time
The current operation angle of brake pedal；Current driving speed in braking process is then detected by velocity sensor in real time, this reality
Conventional car speed inductor can be used in the velocity sensor for applying example, and GPS tachymeters can also be used；It is current in braking process
Braking time can in real time be recorded by timer；The brake force of checking cylinder can in real time be detected by pressure sensor, and brake pipe
The hydraulic coupling on road can in real time be detected by hydrostatic sensor.
Performance detection module 20, for drawing real-time braking curve according to the current brake data, and will be described real-time
Braking curve is fitted comparison with default braking curve, to obtain multiple fluctuation differences.According to above-mentioned real-time braking-distance figures institute
The real-time braking curve of braking ability can be embodied with component by stating performance detection module 20, and the real-time braking curve of structure can certain journey
Degree reflects the braking ability of the brake module 10；And it is accurate for the ease of being carried out to the braking ability of the brake module 10
Judgement, can pass through the performance detection module 20 carry out real-time judge, you can setting it is corresponding with real-time braking curve pre-
It is equipped with moving curve, and real-time braking curve and default braking curve are fitted comparison, when the degree of fitting of the two is in setting model
When within enclosing, then illustrate that the braking ability of the brake module 10 is preferable, disclosure satisfy that practical braking requirement, and intends when the two
It is right exceed setting range when, then illustrate that the braking ability of the brake module 10 is poor, need to be overhauled in time.
The present embodiment is when real-time braking curve is built, in order to improve precision and the accuracy of braking ability judgement, this reality
Apply the real-time braking curve of example can build it is multiple, specifically, the real-time braking curve of the present embodiment be included in setting rotational angle under
For travel speed with the change curve of braking time, i.e., the brake pedal that ought be detected turns to a fixed angles in a relatively short period of time
When spending, and when larger fluctuation does not occur for its rotational angle within a certain period of time, such as：When certain braking, stepped in inside brake in 0.5 second
After plate rotates 30 °, and 30 ° or so are maintained in the rotational angle of 2~3 seconds inside brake pedals, is then travelled in the braking time section
Speed can be reflected in braking ability of the brake pedal under 30 ° of rotational angles with the change curve of braking time, and by above-mentioned change
Change curve and corresponding default braking curve is fitted comparison, then can determine whether that the braking ability under the setting rotational angle is
It is no to meet the requirements.
Preferably, default braking curve corresponding with the above-mentioned change curve under 30 ° of rotational angles is：In mark
Under the conditions of quasi- braking ability, brake pedal rotational angle is the automobile driving speed versus time curve under 30 °, and then quasi-
When closing comparison, generally by real-time braking curve and initial velocity before and after being braked in default braking curve and the identical part of end speed
It is fitted comparison；
Also the change curve of the travel speed of automobile in braking process with the rotational angle of brake pedal can be built, due to system
Brake pedal necessarily has the variation there are one rotational angle during dynamic, and the traveling of the rotational angle of brake pedal and automobile is fast
Change curve between degree can then accurately reflect the variation in braking process between the transformation and travel speed of brake pedal, can
For judging braking susceptibility of the automobile in braking process, be conducive to improve the precision that automobile brake perfrmance judges.
Wherein, travel speed is then with the corresponding default braking curve of change curve of rotational angle：In brake module
10 under the conditions of standard braking ability, and under identical initial velocity, the rotational angle of brake pedal and the traveling speed of automobile
Change curve between degree；Also change curve of the travel speed change rate with the rotational angle of brake pedal can be built, it can be into
The comparison of one step judges the braking susceptibility of brake module 10, and fitting comparison condition is with travel speed with the variation of rotational angle
The condition of curve is essentially identical, wherein above-mentioned travel speed change rate refers to that brake pedal constantly changes in rotational angle
Period in automobile travel speed percentage speed variation, can more accurately reflect braking ability.
Meanwhile the present embodiment can also build travel speed and change with the change curve of the brake force of checking cylinder, travel speed
Rate becomes with the change curve of the brake force of checking cylinder, travel speed with the change curve of the hydraulic coupling of brake piping, travel speed
Rate with the hydraulic coupling of brake piping change curve, can driving force variation and travel speed and travel speed change rate it
Between relationship, and then convenient for judging whether the variation of the braking ability caused by the transmission of checking cylinder or brake piping.
It is emphasized that the default braking curve of the real-time braking curve of the present embodiment brake module 10 corresponding thereto
In it is corresponding refer to not only the same terms (such as under previously described identical initial velocity) being described above, it is above-mentioned corresponding
Also refer to some objective factors for the braking ability for influencing brake module 10, such as institute in real-time braking curve and default braking curve
Load-carrying, surface friction coefficient of the automobile of use etc. are substantially the same, and advantageously ensure that the precision of fitting comparison.
Specifically, the performance detection module 20 includes：
First drawing unit 21 is worked as sequentially obtaining the current driving speed by default rotational angle interval with described
The delta data of preceding braking time, and draw travel speed-braking time change curve according to result is obtained；
Second drawing unit 22, for sequentially obtaining the current driving speed with described according to the first prefixed time interval
The delta data of current operation angle, and draw travel speed-rotational angle change curve according to result is obtained；
Third drawing unit 23, for calculating separately the current speed in the preset time according to the current driving speed
Change rate is spent, and the present speed change rate is sequentially obtained with the current operation angle according to the second prefixed time interval
Delta data, and draw velocity variations-rotational angle change curve according to result is obtained；
4th drawing unit 24, for sequentially obtaining the present speed change rate with institute according to third prefixed time interval
The delta data of current braking effort is stated, and velocity variations-brake force change curve is drawn according to result is obtained；
Difference computational unit 25, for obtaining current data coordinate points all on the real-time braking curve respectively, and
Current data coordinate points standard coordinate point corresponding on the default braking curve is subjected to mathematic interpolation, to obtain
State fluctuation difference.
Preferably, the brake system of car 100 further includes：
Mark module 30, for when determine the fluctuation difference more than preset difference value when, by the real-time braking curve
Above the corresponding coordinate points of the fluctuation difference are identified label, wherein are more than preset difference value when determining the fluctuation difference
When, then judge that the braking ability fluctuation of current automobile is larger, and by the way that corresponding coordinate points are marked, so that after facilitating
Checking and analyzing for continuous user data, improves user experience and effectively plays the role of warning to user.
First alarm module 40, for being more than in advance when the quantity for judging the mark label on the real-time braking curve
If when quantity, sending out label alarm, wherein the preset quantity can be any number, which pre-sets for user
Numerical value, the preset quantity marks when determining the mark for judging whether the fluctuation of the braking function of automobile normal
Quantity when being more than the preset quantity, then judge that the fluctuation of the braking function of current automobile is abnormal, and then send the mark
Note alarm, to prompt user to be subsequently detected.
Second alarm module 50 calculates all fluctuations for the testing result according to the performance detection module 20
The sum of the absolute value of difference to obtain the current degree of fitting, and when the current degree of fitting is more than first threshold, sends out report
Alert prompt.
In the present embodiment, by building the real-time braking curve, so that just whether the braking ability of real-time judgment automobile
Often, by the acquisition of the current brake data, to have ensured that the real-time braking curve is drawn, and by by the real-time system
Moving curve is fitted comparison with the default braking curve, to have ensured the calculating of the fluctuation difference, passes through the mark
The judgement of the quantity of label and the preset quantity, to decide whether to carry out the transmission of the label alarm, and by described
The calculating of current degree of fitting is to decide whether to carry out the transmission of the alarm, the transmission alarmed by the label, with
The braking ability fluctuation for prompting user's automobile current is larger, by the transmission of the alarm, to prompt user's automobile current
Braking ability it is poor, need to be detected or repair in time.
Referring to Fig. 4, the structural schematic diagram of the brake system of car 100a provided for fourth embodiment of the invention, the 4th
The structure of embodiment and 3rd embodiment is more or less the same, and difference lies in the first alarm module 40 and institutes described in the present embodiment
Stating the second alarm module 50 includes respectively：
First alarm unit 41 sends electric signal for inquiring preinstalled circuit port, and to the preinstalled circuit port, with
Control works with alarm, buzzer and/or the alarm lamp on the default port；
Second alarm unit 42 sends alarm signal for inquiring the default network port, and to the default network port,
The alarm signal is received to control the corresponding terminal device of the default network port.
In the present embodiment, by the design of first alarm unit 41, preset vehicle in body of a motor car can be directly controlled
It carries electronic equipment and sends out prompt alarm, to prompt driver's automobile current brake performance poor, need to be detected or tie up in time
It repaiies, and by the design of second alarm unit 42, facilitates the unified prison that timely more automobiles are carried out with braking ability
It surveys and alarms.
The present embodiment additionally provides a kind of mobile terminal, including memory and processor, and the memory is for storing
Computer program, the processor runs the computer program so that the above-mentioned automobile brake side of the mobile terminal execution
Method.
The present embodiment additionally provides a kind of storage medium, is stored thereon with the meter that processor is run in above-mentioned mobile terminal
Calculation machine program, the program when being executed, include the following steps：
When receiving brake signal, braking processing is carried out to automotive wheel, and in preset time described in acquisition in real time
The current brake data of automotive wheel；
Real-time braking curve is drawn according to the current brake data, and the real-time braking curve and default braking is bent
Line is fitted comparison, to obtain multiple fluctuation differences；
When determining the fluctuation difference more than preset difference value, by the fluctuation difference pair on the real-time braking curve
The coordinate points answered are identified label；
When the quantity for judging the mark label on the real-time braking curve is more than preset quantity, label police is sent out
Report；
The sum for calculating the absolute value of all fluctuation differences to obtain current degree of fitting, and works as the current degree of fitting
When more than first threshold, alarm is sent out.The storage medium, such as：ROM/RAM, magnetic disc, CD etc..
Above embodiment described the technical principles of the present invention, and the description is merely to explain the principles of the invention, and
It cannot be construed to the limitation of the scope of the present invention in any way.Based on the explanation herein, those skilled in the art is not required to
Other specific implementation modes of the present invention can be associated by paying performing creative labour, these modes fall within the present invention's
In protection domain.
Claims (10)
1. a kind of automobile brake method, which is characterized in that the method includes：
When receiving brake signal, braking processing is carried out to automotive wheel, and obtain the automobile in real time in preset time
The current brake data of wheel；
Draw real-time braking curve according to the current brake data, and will the real-time braking curve and default braking curve into
Row fitting comparison, to obtain multiple fluctuation differences；
It is when determining the fluctuation difference more than preset difference value, the fluctuation difference on the real-time braking curve is corresponding
Coordinate points are identified label；
When the quantity for judging the mark label on the real-time braking curve is more than preset quantity, label alarm is sent out；
The sum for calculating the absolute value of all fluctuation differences, to obtain current degree of fitting, and when the current degree of fitting is more than
When first threshold, alarm is sent out.
2. automobile brake method according to claim 1, which is characterized in that it is described in preset time in real time obtain described in
The step of current brake data of automotive wheel includes：
Obtain the current driving speed of the automotive wheel, the current operation angle of brake pedal in real time in the preset time
With the current hydraulic coupling of brake piping, and by the current driving speed got, the current operation angle and described work as
Preceding hydraulic coupling is corresponding with the current brake time respectively to be stored.
3. automobile brake method according to claim 2, which is characterized in that described to be drawn according to the current brake data
The step of real-time braking curve includes：
Delta data of the current driving speed with the current brake time is sequentially obtained by default rotational angle interval, and
Travel speed-braking time change curve is drawn according to result is obtained；
Delta data of the current driving speed with the current operation angle is sequentially obtained according to the first prefixed time interval,
And draw travel speed-rotational angle change curve according to result is obtained.
4. automobile brake method according to claim 2, which is characterized in that described to be drawn according to the current brake data
The step of real-time braking curve includes：
The present speed change rate in the preset time is calculated separately according to the current driving speed, and default according to second
Time interval sequentially obtains delta data of the present speed change rate with the current operation angle, and according to acquisition result
Draw velocity variations-rotational angle change curve.
5. automobile brake method according to claim 4, which is characterized in that described to be drawn according to the current brake data
The step of real-time braking curve further includes：
Delta data of the present speed change rate with the current braking effort is sequentially obtained according to third prefixed time interval,
And draw velocity variations-brake force change curve according to result is obtained.
6. automobile brake method according to claim 1, which is characterized in that described by the real-time braking curve and default
Braking curve is fitted comparison, and to obtain multiple fluctuation differences the step of includes：
Obtain current data coordinate points all on the real-time braking curve respectively, and by the current data coordinate points and institute
It states corresponding standard coordinate point on default braking curve and carries out mathematic interpolation, to obtain the fluctuation difference.
7. automobile brake method according to claim 1, which is characterized in that described the step of sending out alarm includes：
Preinstalled circuit port is inquired, and electric signal is sent to the preinstalled circuit port, on control and the default port
Alarm, buzzer and/or alarm lamp work；
The network port is preset in inquiry, and sends alarm signal to the default network port, to control the default network port
Corresponding terminal device receives the alarm signal.
8. a kind of brake system of car, which is characterized in that including：
Brake module, for when receiving brake signal, carrying out braking processing to automotive wheel, and in preset time in real time
Obtain the current brake data of the automotive wheel；
Performance detection module, for drawing real-time braking curve according to the current brake data, and the real-time braking is bent
Line is fitted comparison with default braking curve, to obtain multiple fluctuation differences；
Mark module, for when determine the fluctuation difference more than preset difference value when, will on the real-time braking curve described in
The corresponding coordinate points of fluctuation difference are identified label；
First alarm module, for being more than preset quantity when the quantity for judging the mark label on the real-time braking curve
When, send out label alarm；
Second alarm module calculates the exhausted of all fluctuation differences for the testing result according to the performance detection module
To the sum of value, to obtain current degree of fitting, and when the current degree of fitting is more than first threshold, alarm is sent out.
9. a kind of mobile terminal, which is characterized in that including memory and processor, the memory is for storing computer journey
Sequence, the processor runs the computer program so that the mobile terminal execution is according to described in any one of claim 1 to 7
Automobile brake method.
10. a kind of storage medium, which is characterized in that it is stored with processor in the mobile terminal described in claim 9 and is run
Computer program.
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| CN201810289199.2A CN108583558B (en) | 2018-04-03 | 2018-04-03 | Automobile braking method and system, mobile terminal and storage medium |
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| CN201810289199.2A CN108583558B (en) | 2018-04-03 | 2018-04-03 | Automobile braking method and system, mobile terminal and storage medium |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111114518A (en) * | 2019-12-12 | 2020-05-08 | 新石器慧通（北京）科技有限公司 | Method and device for detecting faults of electro-hydraulic brake system and electronic equipment |
| CN111319600A (en) * | 2018-12-13 | 2020-06-23 | 北京宝沃汽车有限公司 | Method and device for detecting braking efficiency and automobile |
| CN112572545A (en) * | 2019-09-30 | 2021-03-30 | 比亚迪股份有限公司 | Train parking method and device and computer equipment |
| CN114767009A (en) * | 2022-04-24 | 2022-07-22 | 深圳市倍思科技有限公司 | Robot control method, device, equipment and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1697193B1 (en) * | 2003-12-23 | 2007-05-09 | Voith Turbo GmbH & Co. KG | Method for monitoring a braking torque modification of a retarder |
| CN101332813A (en) * | 2008-08-06 | 2008-12-31 | 清华大学 | Vehicle brake efficacy monitoring and alarm system |
| CN103434505A (en) * | 2013-09-02 | 2013-12-11 | 曹利 | Automobile brake safety prompting method and system |
| CN103625459A (en) * | 2012-08-29 | 2014-03-12 | 交通运输部公路科学研究所 | Automobile service braking efficiency dynamic monitoring and alarming system |
| CN105966309A (en) * | 2016-05-24 | 2016-09-28 | 浙江合众新能源汽车有限公司 | Real-time brake display device and method suitable for automobile |
| CN106872178A (en) * | 2017-01-20 | 2017-06-20 | 湖北文理学院 | A kind of all-round property testing method and system of new-energy automobile |
-
2018
- 2018-04-03 CN CN201810289199.2A patent/CN108583558B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1697193B1 (en) * | 2003-12-23 | 2007-05-09 | Voith Turbo GmbH & Co. KG | Method for monitoring a braking torque modification of a retarder |
| CN101332813A (en) * | 2008-08-06 | 2008-12-31 | 清华大学 | Vehicle brake efficacy monitoring and alarm system |
| CN103625459A (en) * | 2012-08-29 | 2014-03-12 | 交通运输部公路科学研究所 | Automobile service braking efficiency dynamic monitoring and alarming system |
| CN103434505A (en) * | 2013-09-02 | 2013-12-11 | 曹利 | Automobile brake safety prompting method and system |
| CN105966309A (en) * | 2016-05-24 | 2016-09-28 | 浙江合众新能源汽车有限公司 | Real-time brake display device and method suitable for automobile |
| CN106872178A (en) * | 2017-01-20 | 2017-06-20 | 湖北文理学院 | A kind of all-round property testing method and system of new-energy automobile |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111319600A (en) * | 2018-12-13 | 2020-06-23 | 北京宝沃汽车有限公司 | Method and device for detecting braking efficiency and automobile |
| CN112572545A (en) * | 2019-09-30 | 2021-03-30 | 比亚迪股份有限公司 | Train parking method and device and computer equipment |
| CN111114518A (en) * | 2019-12-12 | 2020-05-08 | 新石器慧通（北京）科技有限公司 | Method and device for detecting faults of electro-hydraulic brake system and electronic equipment |
| CN114767009A (en) * | 2022-04-24 | 2022-07-22 | 深圳市倍思科技有限公司 | Robot control method, device, equipment and storage medium |
| CN114767009B (en) * | 2022-04-24 | 2024-05-07 | 深圳市倍思科技有限公司 | Robot control method, apparatus, device and storage medium |
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