CN107499257A - Vehicle trouble monitoring method, device, system and vehicle - Google Patents
Vehicle trouble monitoring method, device, system and vehicle Download PDFInfo
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- CN107499257A CN107499257A CN201710283654.3A CN201710283654A CN107499257A CN 107499257 A CN107499257 A CN 107499257A CN 201710283654 A CN201710283654 A CN 201710283654A CN 107499257 A CN107499257 A CN 107499257A
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- vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
- B60R16/0234—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions related to maintenance or repairing of vehicles
Abstract
This disclosure relates to a kind of vehicle trouble monitoring method, device, system and vehicle.This method includes：Vehicle traveling relevant parameter is obtained, the vehicle traveling relevant parameter comprises at least the actual value of speed and wheel speed；According to the speed and the actual value of wheel speed, determine whether the transmission system of the vehicle breaks down.Thus, it is possible to judge by vehicle traveling relevant parameter and identify driving unit fault, the failure monitoring to vehicle drive system is realized.And it is possible to provide support and foundation for follow-up troubleshooting, potential safety hazard is advantageously reduced.
Description
Technical field
This disclosure relates to vehicular field, in particular it relates to a kind of vehicle trouble monitoring method, device, system and vehicle.
Background technology
Vehicle drive system is typically by parts such as motor, gear (including gearbox and differential mechanism), jack shafts
Composition.Transmission system is driven the power output that motor is sent to wheel, generation by gearbox, differential mechanism, jack shaft
Power, enable the vehicle to travel with certain speed.When with differential gear relative motion problem occurs for the jack shaft of transmission system (such as
Input shaft and differential mechanism sided pyramidal gear exist tooth slide or output shaft and central gear coupling part occur inordinate wear,
Or other problemses) when, driving unit fault occurs in vehicle.After transmission system breaks down, vehicle abnormal sound, car can be passed through
Shake phenomena such as artificially identify.But after the problems such as abnormal sound or shake occurs, the driving unit fault is illustrated
It is extremely serious, driver early stage None- identified have the failure, very big potential safety hazard in vehicle travel process be present.
The content of the invention
The problem of purpose of the disclosure is for that can not be accurately identified for the failure of transmission system in the prior art, there is provided
A kind of vehicle trouble monitoring method, device, system and vehicle.
To achieve these goals, according to the first aspect of the disclosure, there is provided a kind of vehicle trouble monitoring method, the side
Method includes：Vehicle traveling relevant parameter is obtained, the vehicle traveling relevant parameter comprises at least the actual value of speed and wheel speed；Root
According to the speed and the actual value of wheel speed, determine whether the transmission system of the vehicle breaks down.
Alternatively, it is described according to the speed and the actual value of wheel speed, determine whether the transmission system of the vehicle occurs
Failure, including：According to pair between the actual value and predetermined speed and wheel speed of the speed and the wheel speed alternative one
It should be related to, determine the theoretical value of another one；According to the theoretical value of the another one and the difference of the actual value of the another one, it is determined that
Wheel slip；According to the wheel slip, determine whether the transmission system of the vehicle breaks down.
Alternatively, it is described according to the wheel slip, determine whether the transmission system of the vehicle breaks down, wrap
Include：When the wheel slip meets the first preparatory condition, determine that suspected malfunctions occur for the transmission system of the vehicle, and more
The total degree record of suspected malfunctions occurs for new transmission system；The total degree that suspected malfunctions occur for transmission system after renewal reaches
During preset times, determine that the transmission system of the vehicle breaks down, wherein, first preparatory condition include it is following in one
Person：The wheel slip is more than or equal to the first default slip rate threshold value and less than the second default slip rate threshold value；Or institute
State wheel slip and slip rate threshold value, and the wheel are preset more than or equal to the first default slip rate threshold value and less than second
Slip rate is more than or equal to the first default slip rate threshold value and the duration less than the second default slip rate threshold value is more than first
Preset duration and it is less than the second preset duration.
Alternatively, before the step of acquisition vehicle traveling relevant parameter, methods described also includes：In vehicle launch
When, read the total degree record that suspected malfunctions occur for the transmission system；When total time of suspected malfunctions occurs for the transmission system
When number reaches preset times, troubleshooting is carried out to the vehicle；When the total degree of suspected malfunctions occurs for the transmission system not
When reaching the preset times, the step of acquisition vehicle travels relevant parameter is performed.
Alternatively, it is described according to the wheel slip, determine whether the transmission system of the vehicle breaks down, wrap
Include：When the wheel slip meets the second preparatory condition, determine that the transmission system of the vehicle breaks down, wherein, institute
The second preparatory condition is stated including one of following：The wheel slip is more than or equal to the second default slip rate threshold value；Or
Person, the wheel slip are more than or equal to the first default slip rate threshold value and slip rate threshold value, and institute are preset less than second
It is more than or equal to the first default slip rate threshold value and big less than the duration of the second default slip rate threshold value to state wheel slip
In or equal to the second preset duration.
Alternatively, methods described also includes：When it is determined that the transmission system of the vehicle breaks down, the vehicle is entered
Row troubleshooting.
Alternatively, it is described to vehicle progress troubleshooting, including：Limit Power Processing is carried out to the vehicle；Output
Prompt messages.
Alternatively, the vehicle traveling relevant parameter also includes the work of wheel tyre pressure and/or body electronics systems stabilisation
Status information；And it is described according to the speed and the actual value of wheel speed, determine whether the transmission system of the vehicle occurs event
Barrier, including：When meeting following condition, according to the speed and the actual value of wheel speed, determining the transmission system of the vehicle is
It is no to break down：(1) vehicle is in straight travel state；(2) actual value of the speed is more than default speed threshold value；(3)
The wheel tyre pressure is in the range of default normal tire pressure, and/or, the work state information represents that the body electronics is steady
Determine system to be closed.
According to the second aspect of the disclosure, a kind of vehicle trouble supervising device is also provided, described device includes：Driving parameters
Acquisition module, it is configured as obtaining vehicle traveling relevant parameter, the vehicle traveling relevant parameter comprises at least speed and wheel speed
Actual value；Fault determination module, the actual value according to the speed and wheel speed is configured as, determines the power train of the vehicle
Whether system breaks down.
Alternatively, the fault determination module, including：Theoretical value determination sub-module, be configured as according to the speed and
Corresponding relation between the actual value of the wheel speed alternative one and predetermined speed and wheel speed, determine the theory of another one
Value；Slip rate determination sub-module, the difference according to the theoretical value of the another one and the actual value of the another one is configured as, really
Determine wheel slip；Fisrt fault determination sub-module, it is configured as, according to the wheel slip, determining the transmission of the vehicle
Whether system breaks down.
Alternatively, the Fisrt fault determination sub-module includes：Suspected malfunctions record renewal submodule, is configured as in institute
When stating wheel slip the first preparatory condition of satisfaction, determine that suspected malfunctions, and more new transmission occur for the transmission system of the vehicle
The total degree record of suspected malfunctions occurs for system；Second failure determination sub-module, it is configured as the transmission system hair after renewal
When the total degree of raw suspected malfunctions reaches preset times, determine that the transmission system of the vehicle breaks down, wherein, described first
Preparatory condition includes one of following：The wheel slip is more than or equal to the first default slip rate threshold value and less than second
Default slip rate threshold value；Or the wheel slip is more than or equal to the first default slip rate threshold value and preset less than second
Slip rate threshold value, and the wheel slip is more than or equal to the first default slip rate threshold value and less than the second default slip rate
The duration of threshold value is more than the first preset duration and is less than the second preset duration.
Alternatively, described device also includes：Suspected malfunctions record read module, are configured as in vehicle launch, read
The total degree record of suspected malfunctions occurs for the transmission system；Fault processing module, it is configured as the suspected malfunctions record
When the total degree that suspected malfunctions occur for the transmission system that read module is read reaches preset times, the vehicle is carried out
Troubleshooting；The driving parameters acquisition module is configured as the biography that the suspected malfunctions record read module is read
When the total degree that suspected malfunctions occur for dynamic system is not up to the preset times, vehicle traveling relevant parameter is obtained.
Alternatively, the Fisrt fault determination sub-module is configured as meeting the second preparatory condition in the wheel slip
When, determine that the transmission system of the vehicle breaks down, wherein, second preparatory condition includes one of following：It is described
Wheel slip is more than or equal to the second default slip rate threshold value；Or the wheel slip is more than or equal to first and preset
Slip rate threshold value and less than the second default slip rate threshold value, and the wheel slip is more than or equal to the first default slip rate
Threshold value and duration less than the second default slip rate threshold value is more than or equal to the second preset duration.
Alternatively, described device also includes：Fault processing module, it is configured as it is determined that the transmission system hair of the vehicle
During raw failure, troubleshooting is carried out to the vehicle.
Alternatively, the fault processing module includes：Troubleshooting submodule, it is configured as carrying out limit work(to the vehicle
Rate processing；Output sub-module is prompted, is configured as exporting prompt messages.
Alternatively, the vehicle traveling relevant parameter also includes the work of wheel tyre pressure and/or body electronics systems stabilisation
Status information；And the fault determination module is configured as：When meeting following condition, according to the speed and wheel speed
Actual value, determines whether the transmission system of the vehicle breaks down：(1) vehicle is in straight travel state；(2) speed
Actual value be more than default speed threshold value；(3) wheel tyre pressure is in the range of default normal tire pressure, and/or, it is described
Work state information represents that the body electronics systems stabilisation is closed.
According to the third aspect of the disclosure, a kind of vehicle trouble monitoring system is also provided, the system includes：Parameter detecting
Device, for detecting vehicle traveling relevant parameter, the vehicle traveling relevant parameter comprises at least the actual value of speed and wheel speed；
Vehicle trouble supervising device, the vehicle trouble supervising device are that the vehicle trouble provided according to the second aspect of the disclosure is supervised
Control device.
According to the fourth aspect of the disclosure, a kind of vehicle is also provided, the vehicle includes the third aspect according to the disclosure
The vehicle trouble monitoring system provided.
Pass through above-mentioned technical proposal, relevant parameter can be travelled by vehicle and judges and identifies driving unit fault, is realized
To the failure monitoring of vehicle drive system.And it is possible to provide support and foundation for follow-up troubleshooting, peace is advantageously reduced
Full hidden danger.
Other feature and advantage of the disclosure will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is for providing further understanding of the disclosure, and a part for constitution instruction, with following tool
Body embodiment is used to explain the disclosure together, but does not form the limitation to the disclosure.In the accompanying drawings：
Fig. 1 is the flow chart of the vehicle trouble monitoring method provided according to a kind of embodiment of the disclosure.
Fig. 2A is whether the transmission system that vehicle is determined in the vehicle trouble monitoring method provided according to the disclosure occurs event
A kind of flow chart of the example implementations of the step of barrier when implementing.
Fig. 2 B are whether the transmission system that vehicle is determined in the vehicle trouble monitoring method provided according to the disclosure occurs event
A kind of flow chart of the example implementations of the step of barrier when implementing.
Fig. 3 A are the flow charts of the vehicle trouble monitoring method provided according to the another embodiment of the disclosure.
Fig. 3 B be according to the disclosure provide vehicle trouble monitoring method in, to vehicle carry out troubleshooting the step of one
Flow chart of the kind example implementations when implementing.
Fig. 4 is the flow chart of the vehicle trouble monitoring method provided according to the another embodiment of the disclosure.
Fig. 5 is the block diagram of the vehicle trouble supervising device provided according to a kind of embodiment of the disclosure.
Fig. 6 is the block diagram of the vehicle trouble supervising device provided according to the another embodiment of the disclosure.
Fig. 7 is the block diagram of the vehicle trouble supervising device provided according to the another embodiment of the disclosure.
Fig. 8 is the block diagram of the vehicle trouble supervising device provided according to the another embodiment of the disclosure.
Fig. 9 is the block diagram of the vehicle trouble supervising device provided according to the another embodiment of the disclosure.
Figure 10 is the block diagram of the vehicle trouble monitoring system provided according to a kind of embodiment of the disclosure.
Embodiment
The embodiment of the disclosure is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The embodiment stated is merely to illustrate and explained the disclosure, is not limited to the disclosure.
Fig. 1 is the flow chart of the vehicle trouble monitoring method provided according to a kind of embodiment of the disclosure, such as Fig. 1 institutes
Show, this method may comprise steps of.
In a step 101, vehicle traveling relevant parameter is obtained, vehicle traveling relevant parameter comprises at least speed and wheel speed
Actual value.
Vehicle traveling relevant parameter can be acquired by corresponding sensor.Example, the actual value of speed can be with
Obtained by vehicle speed sensor；The actual value of wheel speed can be obtained by wheel speed sensors.
In the disclosure, vehicle traveling relevant parameter can also include wheel tyre pressure and/or body electronics systems stabilisation
Work state information., can be according to speed and the actual value of wheel speed when meeting following condition, determining the transmission system of vehicle is
It is no to break down：
(1) vehicle is in straight travel state；
(2) actual value of the speed is more than default speed threshold value；
(3) wheel tyre pressure is in the range of default normal tire pressure, and/or, the work state information represents institute
Body electronics systems stabilisation is stated to be closed.
Illustratively, when vehicle travels relevant parameter in addition to the actual value of speed and wheel speed, in addition to during wheel tyre pressure, car is worked as
The actual value in straight travel state, speed is more than default speed threshold value and wheel tyre pressure and is in default normal
When in the range of tire pressure, it according to speed and the actual value of wheel speed, can determine whether the transmission system of vehicle breaks down.
For another example when vehicle travels relevant parameter in addition to the actual value of speed and wheel speed, in addition to body electronics stability series
During system ground work state information, when vehicle be in straight travel state, speed actual value more than default speed threshold value and
When body electronics systems stabilisation is closed, the transmission system of vehicle according to speed and the actual value of wheel speed, can be determined
Whether break down.
For another example when vehicle travels relevant parameter in addition to the actual value of speed and wheel speed, in addition to wheel tyre pressure and vehicle body
During the work state information of electric stabilizing system, when vehicle is in straight travel state, the actual value of speed is more than default car
, can be with when fast threshold value, wheel tire pressure are in the range of default normal tire pressure and body electronics systems stabilisation is closed
According to speed and the actual value of wheel speed, determine whether the transmission system of vehicle breaks down.
Wherein, default speed threshold value rule of thumb data can be set.Whether straight-line travelling is in for vehicle
The judgement of state, various ways can be used.Illustratively, can be by receiving the steering wheel sent by steering wheel angle sensor
Corner information judges the driving posture of vehicle.For another example the driving trace for the vehicle that can be recorded by Vehicular navigation system
Judge whether vehicle is in straight travel state.Whether normally judge for wheel tyre pressure, can be pressed and passed by mounting car tyre
Whether the tire pressure signal that sensor is sent obtains wheel tyre pressure, then judge the wheel tyre pressure in the range of default normal tire pressure.
Pass through the restriction to above-mentioned several conditions, it can be ensured that in the condition for meeting to carry out vehicle drive failures monitoring
In the case of vehicle trouble is detected, can so prevent the external interference of situation such as turn inside diameter, vehicle ice face traveling from making
Into error detection.
In addition, when wheel tyre pressure is not in default normal tire pressure scope, it may be determined that current abnormal tyre pressure.At this moment may be used
To alarm the abnormal tyre pressure situation, the alarm may, for example, be the warning of output abnormal tyre pressure, light abnormal tyre pressure instruction
Lamp etc..Driver can so be prompted, be easy to driver to be handled for the abnormal tyre pressure situation, it is different to reduce tire pressure
The potential safety hazard often brought.
In a step 102, according to speed and the actual value of wheel speed, determine whether the transmission system of vehicle breaks down.
In a kind of embodiment of step 102, as shown in Figure 2 A, it may comprise steps of.
In step 201, according to the speed and the actual value and predetermined speed and wheel of the wheel speed alternative one
Corresponding relation between speed, determine the theoretical value of another one.
In one embodiment, can by vehicle speed sensor (for example, installed in transmission for vehicles input shaft at) come
Obtain the actual value of speed.According to the corresponding relation between the actual value of the speed and predetermined speed and wheel speed (for example, base
Set in the overall ratio of transmission system), it may be determined that the theoretical value of wheel speed corresponding with the actual value of the speed.
In another embodiment, can be obtained by wheel speed sensors (for example, being arranged on wheel of vehicle wheel hub)
Take the actual value of wheel speed.According to the corresponding relation between the actual value of the wheel speed and predetermined speed and wheel speed (for example, being based on
The overall ratio of transmission system is set), it may be determined that the theoretical value of speed corresponding with the actual value of the wheel speed.
In step 202, according to the theoretical value of the another one and the difference of the actual value of the another one, determine that wheel is slided
Shifting rate.
Illustratively, following several ways can be had by calculating wheel slip：
Mode one：Using the speed and the actual value of wheel speed got in step 101, directly counted by equation below (1)
Calculation draws wheel slip s：
S=(v-vw)/v (1)
Wherein, v be speed actual value, vwFor the actual value of wheel speed.
Mode two：Above-mentioned slip rate calculation formula (1) can be deformed into：
Wherein, ω1For the actual value of the rotating speed of transmission input shaft, ω2For the actual value of angular speed of wheel, i is power train
The overall ratio of system, r are vehicle wheel roll radius, and k is preset constant.
, can be according to ω by above-mentioned formula (2)2With overall ratio i, the theory of the rotating speed of transmission input shaft is calculated
Value, and then the theoretical value of speed can be determined；In addition, ω1For the actual value of the rotating speed of the transmission input shaft, according to the ω1
The actual value of speed can be determined；So, can be according to the actual value of the speed and the difference of theoretical value, according to above-mentioned formula
(2) slip rate, is solved.
Mode three：The slip rate calculation formula (1) can also be deformed into：
, can be according to ω by above-mentioned formula (3)1With overall ratio i, the theoretical value of angular speed of wheel, Jin Erke are calculated
To determine the theoretical value of wheel speed；In addition, ω2For the actual value of the angular speed of wheel, according to the ω2Wheel speed can be determined
Actual value；So, slip rate according to above-mentioned formula (3), can be solved according to the theoretical value of the wheel speed and the difference of actual value.
Calculating to wheel slip can be in order to follow-up breakdown judge.
In step 203, according to the wheel slip, determine whether the transmission system of the vehicle breaks down.
In a kind of embodiment of above-mentioned steps 203, as shown in Figure 2 B, it may comprise steps of.
In step 204, when wheel slip meets the first preparatory condition, determine that the transmission system generation of vehicle is doubtful
Failure, and update the total degree record that suspected malfunctions occur for transmission system.
First preparatory condition includes but is not limited to one of following：Wheel slip is more than or equal to the first default cunning
Shifting rate threshold value and less than the second default slip rate threshold value；Or wheel slip is more than or equal to the first default slip rate threshold value
And less than the second default slip rate threshold value, and the wheel slip is more than or equal to the first default slip rate threshold value and less than the
The duration of two default slip rate threshold values is more than the first preset duration and is less than the second preset duration.
In one embodiment, the wheel slip determined by above-mentioned steps 202 is more than or equal to the first default sliding
Rate threshold value and during less than the second default slip rate threshold value, it may be determined that suspected malfunctions occur for vehicle drive system.At this moment, Ke Yigeng
The total degree record of suspected malfunctions occurs for new transmission system, for example, total degree increase is once.Illustratively, if the first default sliding
Rate threshold value be 15% and second default slip rate threshold value be 20%, then when wheel slip is more than or equal to 15% and is less than
When 20%, it may be determined that suspected malfunctions occur for vehicle drive system, at this moment, total time of suspected malfunctions transmission system can occur
Number record is updated.
In another embodiment, when wheel slip is more than or equal to the first default slip rate threshold value and less than second
Default slip rate threshold value, and the wheel slip is more than or equal to the first default slip rate threshold value and less than the second default sliding
When the duration of rate threshold value is more than the first preset duration and is less than the second preset duration, it may be determined that vehicle drive system occurs
Suspected malfunctions.At this moment, the total degree record that suspected malfunctions occur for transmission system can be updated, for example, total degree increase is once.Show
Example ground, if the first default slip rate threshold value is the 15%, second default slip rate threshold value be the 20%, first preset duration be 15s and
Second preset duration is 60s, then when wheel slip be more than or equal to 15% and less than 20% and the state it is lasting when
Between be more than 15s and when being less than 60s, it may be determined that vehicle drive system generation suspected malfunctions, at this moment, transmission system can be occurred
The total degree record of suspected malfunctions is updated.
In step 205, when the total degree that suspected malfunctions occur for the transmission system after renewal reaches preset times, it is determined that
The transmission system of vehicle breaks down.
Illustratively, if preset times are 10 times, then the total degree that suspected malfunctions occur for transmission system after renewal reaches
During to 10 times, it may be determined that the failure necessary being, you can to determine that the transmission system of vehicle breaks down.
In addition, in the another embodiment of above-mentioned steps 203, the second preparatory condition can be met in wheel slip
When, directly determine that the transmission system of vehicle breaks down.
Second preparatory condition includes but is not limited to one of following：Wheel slip is more than or equal to the second default cunning
Shifting rate threshold value；Or wheel slip is more than or equal to the first default slip rate threshold value and slip rate threshold value is preset less than second,
And the wheel slip be more than or equal to the first default slip rate threshold value and less than the second default slip rate threshold value it is lasting when
Between be more than or equal to the second preset duration.
In one embodiment, the wheel slip determined by step 202 is more than or equal to the second default slip rate threshold
During value, it can directly determine that the transmission system of vehicle breaks down.Illustratively, if the second default slip rate threshold value is 20%, that
When wheel slip is more than or equal to 20%, it can directly determine that vehicle drive system breaks down.
In another embodiment, when wheel slip is more than or equal to the first default slip rate threshold value and less than second
Default slip rate threshold value, and the wheel slip is more than or equal to the first default slip rate threshold value and less than the second default sliding
When the duration of rate threshold value is more than or equal to the second preset duration, it can directly determine that the transmission system of vehicle breaks down.
Illustratively, if the first default slip rate threshold value is the 15%, second default slip rate threshold value be 20% and second preset duration be
60s, then when wheel slip is more than or equal to 15% and less than 20% and duration of the state is more than or equal to
During 60s, it can directly determine that vehicle drive system breaks down.
By such mode, vehicle drive system hair can be directly determined in the case of wheel slip deviation is obvious
Raw failure, it is simple direct.
Pass through above-mentioned technical proposal, relevant parameter can be travelled by vehicle and judges and identifies driving unit fault, is realized
To the failure monitoring of vehicle drive system.And it is possible to provide support and foundation for follow-up troubleshooting, peace is advantageously reduced
Full hidden danger.
Furthermore it is also possible to directly by the actual value of speed and the difference of the theoretical value of speed, or the actual value of wheel speed with
The difference of the theoretical value of wheel speed, whether the transmission system of vehicle is broken down and is determined, without calculating wheel slip.Under
Text with directly according to the difference of the actual value of wheel speed and the theoretical value of wheel speed come determine the transmission system of vehicle whether break down for
Example illustrates, it is to be understood that, the biography of vehicle is directly determined according to the difference of the actual value of speed and the theoretical value of speed
The embodiment whether dynamic system breaks down is similar therewith, just repeats no more herein.
In one embodiment, can when the theoretical value of wheel speed and the difference of actual value of wheel speed meet first condition,
Determine that suspected malfunctions occur for the transmission system of vehicle, and update the total degree record that suspected malfunctions occur for transmission system；More
When the total degree that suspected malfunctions occur for the transmission system after new reaches preset times, determine that the transmission system of vehicle breaks down.
The first condition can include but is not limited to one of following：The difference of the theoretical value of wheel speed and the actual value of wheel speed
More than or equal to the first difference threshold and it is less than the second difference threshold；Or wheel speed theoretical value and wheel speed actual value difference
More than or equal to the first difference threshold and it is less than the second difference threshold, and the difference of the actual value of the theoretical value of the wheel speed and wheel speed
It is more than or equal to the first duration and less than the more than or equal to the first difference threshold and less than the duration of the second difference threshold
Two durations.
Illustratively, the first difference threshold is 5r/min (rev/min) and the second difference threshold is 8r/min, then works as wheel speed
Theoretical value and the difference of actual value of wheel speed be more than or equal to 5r/min and when being less than 8r/min, transmission system can be updated
The total degree record of suspected malfunctions, for example, total degree increase is once.Total time of suspected malfunctions occurs for transmission system in the updated
When number reaches preset times, it may be determined that the transmission system of vehicle breaks down.
For another example a length of 15s and second when the first difference threshold is 5r/min, the second difference threshold is 8r/min, first
Shi Changwei 60s, then when the theoretical value of wheel speed and the difference of actual value of wheel speed are more than or equal to and 5r/min and are less than 8r/min, and
And the theoretical value of the wheel speed and the difference of actual value of wheel speed are more than or equal to 5r/min and are more than less than 8r/min duration
Or equal to 15s and when being less than 60s, the total degree record that suspected malfunctions occur for transmission system can be updated.Transmission in the updated
When the total degree that suspected malfunctions occur for system reaches preset times, it may be determined that the transmission system of vehicle breaks down.
In another embodiment, second condition can be met in the theoretical value of wheel speed and the difference of actual value of wheel speed
When, directly determine that the transmission system of vehicle breaks down.
The second condition can include but is not limited to one of following：The difference of the theoretical value of wheel speed and the actual value of wheel speed
More than or equal to the second difference threshold；Or the theoretical value of wheel speed and the difference of actual value of wheel speed are more than or equal to the first difference
Threshold value and it is less than the second difference threshold, and the difference of the actual value of the theoretical value of the wheel speed and wheel speed is more than or equal to the first difference
Threshold value and it is more than or equal to the second duration less than duration of the second difference threshold.
Illustratively, the second difference threshold is 8r/min, then when the theoretical value of wheel speed and the difference of actual value of wheel speed are more than
Or during equal to 8r/min, it can directly determine that the transmission system of vehicle breaks down.
For another example a length of 60s when the first difference threshold is 5r/min, the second difference threshold is 8r/min and second, then
When the theoretical value of wheel speed and the difference of actual value of wheel speed are more than or equal to 5r/min and are less than 8r/min, and the theory of the wheel speed
, can when duration of the difference of the actual value of value and wheel speed more than or equal to 5r/min and less than 8r/min is more than or equal to 60s
Directly to determine that the transmission system of vehicle breaks down.
In this way, only can carry out simply judging to operate by the speed and the actual value of wheel speed that get,
The monitoring to vehicle drive system failure, simple and fast can be achieved.
In the case of it is determined that vehicle drive system breaks down, troubleshooting can also be carried out to vehicle, such as Fig. 3 A institutes
Show, on the basis of step 101 and step 102, this method can also comprise the following steps：
In step 301, when it is determined that the transmission system of vehicle breaks down, troubleshooting is carried out to vehicle.
In a kind of implementation of above-mentioned steps 301, as shown in Figure 3 B, it may comprise steps of：
In step 302, limit Power Processing is carried out to vehicle；
In step 303, prompt messages are exported.
The power output that limit Power Processing may, for example, be limiting motor is carried out to vehicle, to limit the Travel vehicle of vehicle
Speed, it can so reduce the potential safety hazard that driving unit fault is brought；It can be such as control instrument to export prompt messages
Corresponding indicator lamp on disk is bright or exports voice message fault message, so the failure can be informed into driver knows, is easy to
Driver takes appropriate measures.
Fig. 4 is the flow chart of the vehicle trouble monitoring method provided according to the another embodiment of the disclosure, such as Fig. 4 institutes
Show, in addition to step 101 and step 102, this method can also comprise the following steps.
In step 401, in vehicle launch, the total degree record that suspected malfunctions occur for transmission system is read；Work as transmission
When the total degree that suspected malfunctions occur for system reaches preset times, step 402 is performed；When the total of suspected malfunctions occurs for transmission system
When number is not up to preset times, step 101 is performed.
In step 402, troubleshooting is carried out to vehicle.
In vehicle launch, before obtaining vehicle traveling relevant parameter, transmission system can be read first doubtful event occurs
The total degree record of barrier, when the total degree that suspected malfunctions occur for transmission system reaches preset times, it may be determined that transmission system
Failure necessary being, troubleshooting at this moment can be carried out, i.e., limit Power Processing, output prompt messages are carried out to vehicle.Show
Example ground, if preset times are 10 times, in vehicle launch, the total degree record of the transmission system generation suspected malfunctions read reaches
During to 10 times, it may be determined that driving unit fault necessary being, troubleshooting can be carried out.So, in the doubtful event of transmission system
When the total degree of barrier meets the condition of driving unit fault necessary being, failure directly can be carried out to vehicle in vehicle launch
Processing, potential safety hazard is reduced, and inform that driver knows, facilitate driver to carry out failture evacuation.In addition, when driver passes through car
Maintenance or other means are to the driving unit fault when being repaired and determining that the failure excludes completely, can should
Failure logging is purged.So it can prevent the failure logging from being had an impact to failure monitoring afterwards.
And when the total degree that suspected malfunctions occur for transmission system is not up to preset times, then continue executing with step 101
Acquisition vehicle traveling relevant parameter and subsequent step.
In addition, before the total degree in transmission system generation suspected malfunctions is not up to preset times, performs step 101, also
The working condition of sensor can be monitored.For example, when sensor is in normal operating conditions, can continue executing with
Subsequent step.When an at least sensor is in non-normal operating conditions, the sensor of the non-normal work can be carried out
Troubleshooting, such as indicator lamp prompting, voice warning etc..
Fig. 5 is the block diagram of the vehicle trouble supervising device provided according to a kind of embodiment of the disclosure.As shown in figure 5,
The device 500 can include：Driving parameters acquisition module 501, it is configured as obtaining vehicle traveling relevant parameter, the vehicle row
Relevant parameter is sailed including at least speed and the actual value of wheel speed；Fault determination module 502, it is configured as according to the speed and wheel
The actual value of speed, determines whether the transmission system of the vehicle breaks down.
Fig. 6 is the block diagram of the vehicle trouble supervising device provided according to the another embodiment of the disclosure.Such as Fig. 6 institutes
Show, the fault determination module 502 can include：Theoretical value determination sub-module 601, it is configured as according to the speed and the wheel
Corresponding relation between the actual value of fast alternative one and predetermined speed and wheel speed, determine the theoretical value of another one；Sliding
Rate determination sub-module 602, the difference according to the theoretical value of the another one and the actual value of the another one is configured as, determines car
Wheel slip rate；Fisrt fault determination sub-module 603, it is configured as, according to the wheel slip, determining the transmission of the vehicle
Whether system breaks down.
Fig. 7 is the block diagram of the vehicle trouble supervising device provided according to the another embodiment of the disclosure.Such as Fig. 7 institutes
Show, the Fisrt fault determination sub-module 603 can include：Suspected malfunctions record renewal submodule 701, is configured as in the car
When wheel slip rate meets the first preparatory condition, determine that suspected malfunctions occur for the transmission system of the vehicle, and update transmission system
The total degree record of suspected malfunctions occurs；Second failure determination sub-module 702, it is configured as the transmission system after renewal and occurs
When the total degree of suspected malfunctions reaches preset times, determine that the transmission system of the vehicle breaks down, wherein, described first is pre-
If condition includes one of following：The wheel slip is more than or equal to the first default slip rate threshold value and pre- less than second
If slip rate threshold value；Or the wheel slip is more than or equal to the first default slip rate threshold value and less than the second default cunning
Shifting rate threshold value, and the wheel slip is more than or equal to the first default slip rate threshold value and less than the second default slip rate threshold
The duration of value is more than the first preset duration and is less than the second preset duration.
Fig. 8 is the block diagram of the vehicle trouble supervising device provided according to the another embodiment of the disclosure.Such as Fig. 8 institutes
Show, the device 500 can also include：Suspected malfunctions record read module 801, are configured as in vehicle launch, described in reading
The total degree record of suspected malfunctions occurs for transmission system；Fault processing module 802, it is configured as the suspected malfunctions record and reads
When the total degree that suspected malfunctions occur for the transmission system that modulus block 801 is read reaches preset times, the vehicle is entered
Row troubleshooting；Driving parameters acquisition module 501 is configured as the institute that the suspected malfunctions record read module 801 is read
Suspected malfunctions occur for transmission system total degree is stated when being not up to the preset times, obtains vehicle traveling relevant parameter.
Alternatively, Fisrt fault determination sub-module 603 can be configured as meeting that second is default in the wheel slip
During condition, determine that the transmission system of the vehicle breaks down, wherein, second preparatory condition includes one of following：
The wheel slip is more than or equal to the second default slip rate threshold value；Or the wheel slip is more than or equal to first
Preset slip rate threshold value and less than the second default slip rate threshold value, and the wheel slip is more than or equal to the first default cunning
Shifting rate threshold value and duration less than the second default slip rate threshold value is more than or equal to the second preset duration.
Alternatively, the device 500 can also include：Fault processing module 802, it is configured as it is determined that the biography of the vehicle
During dynamic system jam, troubleshooting is carried out to the vehicle.
Fig. 9 is the block diagram of the vehicle trouble supervising device provided according to the another embodiment of the disclosure.Such as Fig. 9 institutes
Show, the fault processing module 802 can include：Troubleshooting submodule 901, it is configured as that the vehicle limit at power
Reason；Output sub-module 902 is prompted, is configured as exporting prompt messages.
Alternatively, vehicle traveling relevant parameter can also include wheel tyre pressure and/or body electronics systems stabilisation
Work state information；And the fault determination module 502 can be configured as：When meeting following condition, according to the car
The actual value of speed and wheel speed, determines whether the transmission system of the vehicle breaks down：(1) vehicle is in straight travel state；
(2) actual value of the speed is more than default speed threshold value；(3) wheel tyre pressure is in default normal tire pressure scope
It is interior, and/or, the work state information represents that the body electronics systems stabilisation is closed.
Figure 10 is the block diagram of the vehicle trouble monitoring system provided according to a kind of embodiment of the disclosure.Such as Figure 10 institutes
Show, the system 1000 can include：Parameter detection device 1001, for detecting vehicle traveling relevant parameter, the vehicle traveling
Relevant parameter comprises at least the actual value of speed and wheel speed；Vehicle trouble supervising device, provided for disclosure any embodiment
Vehicle trouble supervising device 500.
Illustratively, when vehicle traveling relevant parameter includes the actual value of speed and wheel speed, the parameter monitor device
1001 can include：Vehicle speed sensor and wheel speed sensors.For another example when vehicle traveling relevant parameter includes speed and wheel speed
When actual value and steering wheel angle information, the parameter monitor device 1001 can include：Vehicle speed sensor, wheel speed sensing
Device, steering wheel angle sensor.For another example when vehicle traveling relevant parameter includes the actual value of speed and wheel speed, steering wheel turns
When angle information and wheel tyre pressure, the parameter monitor device 1001 can include：Vehicle speed sensor, wheel speed sensors, steering wheel
Rotary angle transmitter and tyre pressure sensor.
The disclosure also provides a kind of vehicle, including the vehicle trouble monitoring system that disclosure any embodiment provides.
The preferred embodiment of the disclosure is described in detail above in association with accompanying drawing, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical scheme of the disclosure
Monotropic type, these simple variants belong to the protection domain of the disclosure.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the disclosure to it is various can
The combination of energy no longer separately illustrates.
In addition, it can also be combined between a variety of embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought, it should equally be considered as disclosure disclosure of that.
Claims (10)
1. a kind of vehicle trouble monitoring method, it is characterised in that methods described includes：
Vehicle traveling relevant parameter is obtained, the vehicle traveling relevant parameter comprises at least the actual value of speed and wheel speed；
According to the speed and the actual value of wheel speed, determine whether the transmission system of the vehicle breaks down.
2. according to the method for claim 1, it is characterised in that it is described according to the speed and the actual value of wheel speed, it is determined that
Whether the transmission system of the vehicle breaks down, including：
According to the corresponding pass between the speed and the actual value and predetermined speed and wheel speed of the wheel speed alternative one
System, determine the theoretical value of another one；
According to the theoretical value of the another one and the difference of the actual value of the another one, wheel slip is determined；
According to the wheel slip, determine whether the transmission system of the vehicle breaks down.
3. according to the method for claim 2, it is characterised in that it is described according to the wheel slip, determine the vehicle
Transmission system whether break down, including：
When the wheel slip meets the first preparatory condition, determine that suspected malfunctions occur for the transmission system of the vehicle, and
Update the total degree record that suspected malfunctions occur for transmission system；
When the total degree that suspected malfunctions occur for the transmission system after renewal reaches preset times, the power train of the vehicle is determined
System breaks down, wherein, first preparatory condition includes one of following：
The wheel slip is more than or equal to the first default slip rate threshold value and less than the second default slip rate threshold value；Or
The wheel slip is more than or equal to the first default slip rate threshold value and slip rate threshold value, and institute is preset less than second
It is more than or equal to the first default slip rate threshold value and big less than the duration of the second default slip rate threshold value to state wheel slip
In the first preset duration and it is less than the second preset duration.
4. according to the method for claim 3, it is characterised in that it is described acquisition vehicle traveling relevant parameter the step of it
Before, methods described also includes：
In vehicle launch, the total degree record that suspected malfunctions occur for the transmission system is read；
When the total degree that suspected malfunctions occur for the transmission system reaches preset times, troubleshooting is carried out to the vehicle；
When the total degree that suspected malfunctions occur for the transmission system is not up to the preset times, the acquisition vehicle row is performed
The step of sailing relevant parameter.
5. according to the method for claim 2, it is characterised in that it is described according to the wheel slip, determine the vehicle
Transmission system whether break down, including：
When the wheel slip meets the second preparatory condition, determine that the transmission system of the vehicle breaks down, wherein, institute
The second preparatory condition is stated including one of following：
The wheel slip is more than or equal to the second default slip rate threshold value；Or
The wheel slip is more than or equal to the first default slip rate threshold value and slip rate threshold value, and institute is preset less than second
It is more than or equal to the first default slip rate threshold value and big less than the duration of the second default slip rate threshold value to state wheel slip
In or equal to the second preset duration.
6. according to the method any one of claim 1-5, it is characterised in that methods described also includes：
When it is determined that the transmission system of the vehicle breaks down, troubleshooting is carried out to the vehicle.
7. according to the method any one of claim 1-5, it is characterised in that the vehicle traveling relevant parameter also includes
The work state information of wheel tyre pressure and/or body electronics systems stabilisation；And
It is described to determine whether the transmission system of the vehicle breaks down according to the speed and the actual value of wheel speed, including：
When meeting following condition, according to the speed and the actual value of wheel speed, determine whether the transmission system of the vehicle is sent out
Raw failure：
(1) vehicle is in straight travel state；
(2) actual value of the speed is more than default speed threshold value；
(3) wheel tyre pressure is in the range of default normal tire pressure, and/or, the work state information represents the car
Body electric stabilizing system is closed.
8. a kind of vehicle trouble supervising device, it is characterised in that described device includes：
Driving parameters acquisition module, it is configured as obtaining vehicle traveling relevant parameter, the vehicle traveling relevant parameter at least wraps
Include the actual value of speed and wheel speed；
Fault determination module, the actual value according to the speed and wheel speed is configured as, determining the transmission system of the vehicle is
It is no to break down.
9. a kind of vehicle trouble monitoring system, it is characterised in that the system includes：
Parameter detection device, for detecting vehicle traveling relevant parameter, vehicle traveling relevant parameter comprise at least speed and
The actual value of wheel speed；
Vehicle trouble supervising device, the vehicle trouble supervising device are the vehicle trouble supervising device according to claim 8.
10. a kind of vehicle, it is characterised in that the vehicle includes vehicle trouble monitoring system according to claim 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710283654.3A CN107499257A (en) | 2017-04-26 | 2017-04-26 | Vehicle trouble monitoring method, device, system and vehicle |
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| CN201710283654.3A CN107499257A (en) | 2017-04-26 | 2017-04-26 | Vehicle trouble monitoring method, device, system and vehicle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108638982A (en) * | 2018-07-05 | 2018-10-12 | 北京智行者科技有限公司 | Control method for vehicle |
| CN109186068A (en) * | 2018-08-13 | 2019-01-11 | 珠海格力电器股份有限公司 | Air-conditioning noise source determination method and control system |
| CN109367533A (en) * | 2018-10-15 | 2019-02-22 | 北京汽车研究总院有限公司 | A kind of ESP control method and device |
| CN109849690A (en) * | 2019-03-13 | 2019-06-07 | 扬州工业职业技术学院 | A kind of motor control method and control device of electric car |
-
2017
- 2017-04-26 CN CN201710283654.3A patent/CN107499257A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108638982A (en) * | 2018-07-05 | 2018-10-12 | 北京智行者科技有限公司 | Control method for vehicle |
| CN108638982B (en) * | 2018-07-05 | 2019-11-08 | 北京智行者科技有限公司 | Control method for vehicle |
| CN109186068A (en) * | 2018-08-13 | 2019-01-11 | 珠海格力电器股份有限公司 | Air-conditioning noise source determination method and control system |
| CN109367533A (en) * | 2018-10-15 | 2019-02-22 | 北京汽车研究总院有限公司 | A kind of ESP control method and device |
| CN109849690A (en) * | 2019-03-13 | 2019-06-07 | 扬州工业职业技术学院 | A kind of motor control method and control device of electric car |
| CN109849690B (en) * | 2019-03-13 | 2022-04-15 | 扬州工业职业技术学院 | Motor control method and control device for electric automobile |
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Application publication date: 20171222 |