CN110194139A - Brake test status determines method, apparatus and vehicle - Google Patents
Brake test status determines method, apparatus and vehicle Download PDFInfo
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- CN110194139A CN110194139A CN201910456917.5A CN201910456917A CN110194139A CN 110194139 A CN110194139 A CN 110194139A CN 201910456917 A CN201910456917 A CN 201910456917A CN 110194139 A CN110194139 A CN 110194139A
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- signal
- brake
- test status
- working condition
- inspection signal
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Classifications
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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
Abstract
The embodiment of the invention discloses a kind of brake test status to determine method, apparatus and vehicle.Method provided in an embodiment of the present invention includes: to obtain auxiliary judgment signal, it includes: that main inspection signal and/or pair examine signal that signal is examined in the brake when getting brake inspection signal；The working condition of brake pedal is determined according to the auxiliary judgment signal；Signal is examined to determine brake test status according to the working condition and brake.Technical solution in the embodiment of the present invention is accurately determined brake test status by auxiliary judgment signal, avoids consistency checking failure, reduce the security risk of vehicle driving.
Description
Technical field
The present embodiments relate to technical field of automatic control more particularly to a kind of brake test status determine method,
Device and vehicle.
Background technique
Currently, with the development of hybrid vehicle, great variety, the safety of full-vehicle control occur for vehicle dynamical system
Further prominent, entire car controller examines signal to carry out consistency desired result by the two-way brake of detection brake pedal output.Verification
As a result correctness is of crucial importance driving safety.
In the prior art, main brake signal and auxiliary brake signal in signal is examined to set two-way brake using mechanical means
It is set to opposite signal, when stepping on brake, main brake signaling switch is connected, and auxiliary brake signal disconnects, and when releasing of brake, pair is stopped
Vehicle signal is connected, and main brake signal disconnects；Consistency based on major-minor brake signal judge brake whether failure, but due to stop
There is mechanical scattered error in vehicle signaling switch, main brake is closed the switch to be closed the switch simultaneously discontinuously with auxiliary brake when generating, in
Between there are the time difference, when brake carries out within the time difference range just, will lead to brake consistency check, there are failures, can not
Accurate judgement is braked test status, and then leads to user's vehicle drive there are security risks.
Summary of the invention
The present invention provides a kind of brake test status and determines method, apparatus and vehicle, to realize that shape is examined in the brake of vehicle
The accurate determination of state.
In a first aspect, the embodiment of the invention provides a kind of brake test status to determine method, this method comprises:
When getting brake inspection signal, auxiliary judgment signal is obtained, it includes: main inspection signal that signal is examined in the brake
And/or secondary inspection signal；
The working condition of brake pedal is determined according to the auxiliary judgment signal；
Signal is examined to determine brake test status according to the working condition and brake.
Second aspect, the embodiment of the invention also provides a kind of brake test status determining device, which includes:
Parameter acquisition module, for obtaining auxiliary judgment signal when getting brake inspection signal, the brake is examined
Signal includes: main inspection signal and/or secondary inspection signal；
State generation module, for determining the working condition of brake pedal according to the auxiliary judgment signal；
Test status determining module, for examining signal to determine brake test status according to the working condition and brake.
The third aspect, the embodiment of the invention also provides a kind of vehicle, which includes:
One or more controllers；
Memory, for storing one or more programs,
When one or more of programs are executed by one or more of processors, so that one or more of processing
Device realizes that the brake test status as described in any in the embodiment of the present invention determines method.
The embodiment of the present invention is by getting including main inspection signal and/or the secondary brake inspection signal for examining signal
When, auxiliary judgment signal is obtained, is determined according to working condition of the auxiliary judgment signal to brake pedal, according to brake pedal
Working condition and brake examine signal determine brake test status, realize the accurate determination to vehicle brake test status,
Vehicle is avoided to generate security risk because braking test status error in judgement.
Detailed description of the invention
Fig. 1 is that the main waveform timing chart for examining signal to examine signal with pair in signal is examined in brake in the prior art；
Fig. 2 is the flow chart that a kind of brake test status that the embodiment of the present invention one provides determines method；
Fig. 3 is the flow chart that a kind of brake test status provided by Embodiment 2 of the present invention determines method；
Fig. 4 is the exemplary diagram that a kind of brake test status provided by Embodiment 2 of the present invention determines method；
Fig. 5 is a kind of structural schematic diagram for brake test status determining device that the embodiment of the present invention three provides；
Fig. 6 is a kind of structural schematic diagram for vehicle that the embodiment of the present invention four provides.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure, in addition, in the absence of conflict, this
The feature in embodiment and embodiment in invention can be combined with each other.
Embodiment one
Fig. 1 is that the main waveform timing chart for examining signal to examine signal with pair in signal is examined in brake in the prior art；Referring to
Fig. 1, entire car controller is before controlling vehicle according to brake signal, it is necessary to be braked by two-way and signal is examined to determine brake letter
Number effectively, and two-way brake examines signal to need through consistency desired result, two-way brake in the prior art examines the signal can be
Main inspection signal and it is secondary examine signal, when brake pedal is operated or is unclamped, main inspections signal and secondary inspection signal because of
The problem of mechanical scattered error, leads to, as shown in Figure 1 gap in timing and asynchronous in main inspection signal and secondary inspection signal
Position, when in clearance position, when driver steps on brake pedal or releasing of brake pedal again, since secondary inspection also has not been obtained
The level of signal is tested, consistency desired result can not be carried out to main inspection signal and secondary inspection signal, cause promptly and accurately to obtain
To brake test status, security risk is caused to vehicle driving.
Fig. 2 is the flow chart that a kind of brake test status that the embodiment of the present invention one provides determines method, and the present embodiment can
The case where suitable for accurately obtaining vehicle brake test status, this method can be held by vehicle brake test status determining device
Row, which can be realized by the way of hardware and/or software, can be usually integrated in vehicle control device, and the present invention is real
The brake test status for applying example offer determines that method specifically comprises the following steps:
Step 101, when getting brake and examining signal, obtain auxiliary judgment signal, brake inspection signal includes:
Main inspection signal and/or secondary inspection signal.
Wherein, brake examines signal to can be the signal of two-way brake switch in corresponding vehicle, can be to respectively correspond two
The signal of circuit in the brake switch of road, illustratively, brake switch can have two paths of signals, the switching signal of high current and small electricity
The switching signal of stream, high-current switch signal can be often in an off state, and low current switch signal can often be in connected state
State, when brake pedal is operated, high-current switch signal can be become connected state, low current switch signal from off-state
State can be gone off by connected state, it may include high-current switch signal and low current switch letter that signal is examined in brake
Number.
In the present embodiment, auxiliary judgment signal can be the signal for auxiliary judgment brake pedal working condition, can be with
It is the component that vehicle braking is realized with brake pedal collective effect, for example, pressure when brake pedal is operated, in master cylinder
Increase, vehicle generates braking effect and can aid in illustrating brake pedal when master cylinder pressure increase and be operated, can be with
Using the pressure value of master cylinder as auxiliary judgment signal, auxiliary judgment signal can also include vacuum booster and vacuum tank etc.
The vacuum signal of vacuum servo component, main inspection signal can be in brake inspection signal and correspond to two-way brake switch main switch
Signal, pair examines signal to can be brake and examines the signal for corresponding to two-way brake switch auxiliary switch in signal, for example, main inspection is believed
It number can be high-current switch signal, pair examines signal to can be low current switch signal.
In embodiments of the present invention, it when signal is examined in the brake for getting corresponding two-way brake switch, gets at this time
Brake examine signal can only include main inspections signal or it is secondary examine signal, can also simultaneously include that main inspections signal and pair be examined
Test signal, that is to say, that when getting main inspection signal, secondary examine signal or get main inspections signal and secondary inspection simultaneously
When signal, available auxiliary judgment signal, it is to be understood that auxiliary judgment signal can be for one or multiple,
For example, auxiliary judgment signal can include the vacuum signal and vacuum tank of the pressure signal of master cylinder, brake booster simultaneously
Vacuum signal.
Step 102, the working condition that brake pedal is determined according to the auxiliary judgment signal.
Wherein, brake pedal can be the starter of motor vehicle braking system, when brake pedal is stepped on, in brake pedal
The master cylinder of connection generates pressure and vehicle braking is slowed down, and brake pedal is also attached with brake vacuum booster parts,
Vacuum servo component and brake pedal compress master cylinder together, and master cylinder pressure increase can be made to realize vehicle braking, stop
The working condition of vehicle pedal may include on-position and non-brake state, when brake pedal is stepped on, the work shape of brake pedal
State may be at on-position, and when brake pedal lifts, the working condition of brake pedal may be at non-brake state.
It, can be with specifically, brake pedal can realize braking function with other brake components in vehicle jointly in the car
According to the signal of other brake components determine brake pedal locating for working condition, the signal of brake component can be will acquire
It is compared with the signal threshold value prestored, if the signal of brake component meets the requirement of signal threshold value, it may be said that bright brake is stepped on
Plate and brake component realize vehicle braking function jointly, can determine the working condition of brake pedal, illustratively, when
When getting the pressure value of master cylinder higher than preset threshold 2bar, it can determine that brake pedal and master cylinder collective effect are real
Existing braking function, then the working condition of brake pedal can with when the on-position stepped on, otherwise, it is believed that the work of brake pedal
It is the non-brake state lifted as state.
Step 103 examines signal to determine brake test status according to the working condition and brake.
Wherein, brake test status can be the state that signal is examined in brake, can be brake and examines the consistent shape of signal
The state that state and brake examine signal inconsistent, entire car controller can realize different controls to vehicle according to brake test status
System, if brake test status is normal, entire car controller can be lighted according to brake test status control vehicle braking lamp, if brake
Test status is abnormal, and entire car controller can such as issue stop, tail and number plate light according to the brake capable of emitting fault alarm of test status
Switch insincere signal.
Specifically, signal can be examined to determine brake test status jointly according to the working condition and brake of brake pedal,
The signal value of brake pedal working condition and brake can be examined into signal progress and operation, the corresponding height of operating result can be worked as
Low level determines the brake test status of vehicle, it is to be understood that is also based on the working condition and brake of brake pedal
Signal is examined to compare with preset condition, it can be by preset condition and brake test status associated storage, based on comparative result
Determine corresponding brake test status.
The technical solution of the embodiment of the present invention, by actively obtaining auxiliary judgment letter when getting brake inspection signal
Number, the working condition of brake pedal is determined according to auxiliary judgment signal, examines signal to stop to determine based on working condition and brake
Vehicle test status realizes the accurate determination to vehicle brake test status, reduces the False Rate of brake test status, can eliminate vehicle
Because brake test status erroneous judgement generate security risk.
Embodiment two
Fig. 3 is the flow chart that a kind of brake test status provided by Embodiment 2 of the present invention determines method, and the present invention is implemented
Example is materialization on that basi of the above embodiments, determines that method includes: in the brake test status of the embodiment of the present invention
Step 201, when get brake examine signal when, obtain auxiliary judgment signal, the auxiliary judgment signal, packet
It includes: the pressure signal of master cylinder and/or the vacuum signal of brake vacuum booster parts.
Wherein, master cylinder can be the component part of brake and drive system for vehicle with tow, can cooperate and realize with brake pedal
Brake function, master cylinder can convert hydraulic coupling for the mechanical force that brake pedal generates, so that vehicle braking, brake vacuum
The mechanical force that booster parts can export brake pedal is amplified, and can realize vehicle braking with brake pedal collective effect.
Specifically, can be when getting brake inspection signal, it may include main inspection letter that signal is examined in the brake of acquisition
Number or it is secondary examine signal, it can also include main inspections signal and secondary inspection signal that signal is examined in brake simultaneously, can get
When signal is examined in brake, pressure signal and the acquisition of master cylinder can be obtained by the way that the pressure sensor of master cylinder is arranged in
The vacuum signal of the vacuum transducer of brake vacuum booster parts is set, the pressure signal and vacuum signal that can be will acquire
As auxiliary judgment signal, it is to be understood that auxiliary judgment signal can be only the pressure signal of master cylinder or brake true
The vacuum signal of empty booster parts.
Step 202, the signal value for extracting the auxiliary judgment signal, the signal value is compared with preset threshold.
Wherein, signal value can be the corresponding numerical value of auxiliary judgment signal, may include master cylinder pressure value and/or
The vacuum values of brake vacuum booster parts, can be according to respectively by pressure sensor and vacuum sensor acquisition；Preset threshold
It can be the parameter value for showing that brake and drive system for vehicle with tow is working, may include the minimum pressure values and brake vacuum of pressure master cylinder
The minimum pressure values etc. of booster, preset threshold can be a value or multiple values, can be stored in advance in vehicle.
Specifically, the pressure value of master cylinder and/or the vacuum degree of brake vacuum booster parts can be extracted, can incite somebody to action
The pressure value and vacuum degree got is compared with pre-stored preset threshold respectively, for example, can be by master cylinder pressure
Force value is compared with the first preset threshold 2bar, can be by the vacuum degree of brake vacuum booster parts and the second preset threshold
50hpa is compared.
If step 203, the signal value are greater than or equal to preset threshold, it is determined that the working condition of brake pedal is braking
State, otherwise, it determines the working condition of brake pedal is non-brake state.
Wherein, working condition can be when getting brake inspection signal, and brake pedal state in which can be place
In the on-position stepped on or in the non-brake state lifted, on-position can refer to that brake pedal is operated to vehicle system
Dynamic system provides the state of mechanical force, and non-brake state can refer to that brake pedal is not operated, and brake has not been obtained in Vehicular system
The state of the mechanical force of vehicle pedal output.
Specifically, if the pressure value of the master cylinder got and the vacuum degree of brake vacuum booster parts are respectively greater than
Or brake can be determined then can determine that brake pedal provides mechanical force for motor vehicle braking system equal to preset threshold
Working condition locating for vehicle pedal is the on-position stepped on, and otherwise, can determine that brake pedal is not stepped on to vehicle braking
Plate provides mechanical force, determines that the working condition of brake pedal is the non-brake state that do not step on.
Step 204, when it only includes main inspections signal or secondary inspection signal that signal is examined in the brake that obtains in preset duration,
Determine that the brake test status is malfunction.
Wherein, preset duration, which can be, obtains the duration that signal is examined in brake, and brake can be continuously acquired in preset duration
Signal is tested in car test, and preset duration can be 200ms, and malfunction can refer to main inspection signal letter corresponding with pair inspection signal
Number inconsistent state of state, for example, it is that low current switch is believed that pair, which examines signal, if main inspection signal is high-current switch signal
Number, high-current switch signal can be often in an off state, and low current switch signal can often be in connected state, when brake is stepped on
When plate is operated, high-current switch signal can be become connected state from off-state, and low current switch signal can be by being connected to
State goes off state, but when brake pedal is operated, high-current switch signal is connected state, low current switch
For connected state, main inspection signal corresponds to brake pedal and is operated, and pair is examined signal to correspond to brake pedal and lifted, and may indicate that master
It examines signal and the secondary signal condition for examining signal inconsistent, can determine that brake test status is malfunction.
Specifically, can obtain brake in preset duration examines signal, if letter is examined in the brake in preset duration
Examined based on number only signal or be only it is secondary examine signal, only get brake and examine one of signal, can not get another
A kind of brake inspection signal, is examined in signal due to brake and only gets one of which, it may be said that bright brake examines signal corresponding
Brake switch failure, can not to brake examine signal carry out consistency checking, can determine brake test status be failure shape
State.
Step 205, when it includes main inspections signal and secondary inspection signal that signal is examined in the brake that obtains in preset duration, root
Brake test status is determined according to the working condition of the brake pedal and the main inspection signal and secondary inspection signal.
Wherein, it includes that main inspection signal and pair examine signal that can refer to that signal is examined in the brake obtained in preset duration
Main inspection signal and secondary inspection signal are got in a period of time, such as main inspection signal and pair can be got in 100ms
Examine signal.
In embodiments of the present invention, can be when getting main inspection signal and secondary inspection signal in preset duration, it can
Based on main inspection signal, the secondary test status for examining the working condition of signal and brake pedal to determine brake, such as main inspection
Signal is high level, secondary inspection signal is low level and brake pedal is on-position, can determine that brake test status is positive
Normal state may include to master according to the method that main test status, secondary test status and working condition determine brake test status
The level signal of test status, secondary test status and working condition carries out logical operation, can also include based on main test status,
Secondary test status and the signal value of working condition are inquired in pre-stored brake test status table.
Step 206 records the brake test status, when the malfunction number in the brake test status is more than threshold
When being worth number, fault alarm is issued.
Wherein, threshold number can be failure state maximum upper limit number, and when being more than threshold number, vehicle is easy
There is traffic safety, threshold number can be configured according to safety standard, such as can be set to 3.
Specifically, brake test status can be recorded sequentially in time, further, brake can be only recorded
The malfunction occurred in test status can count the malfunction number in a period of time, when malfunction number is more than
When preset threshold number, fault warning can be generated, can be shown in the display screen of vehicle, it can also be with language
Form is broadcasted to user.
The technical solution of the embodiment of the present invention, by the way that when getting brake inspection signal, obtaining includes master cylinder pressure
The auxiliary judgment signal of the vacuum signal of force signal and brake vacuum booster parts extracts the signal value in auxiliary judgment signal,
And compare signal value and preset threshold, if signal value is greater than or equal to preset threshold, determine the work of brake pedal
State is on-position, is otherwise non-brake state, when only getting main inspection signal in preset duration or secondary examine signal
When, determine that brake test status is malfunction, it, can be with when getting main inspections signal and secondary inspection signal in preset duration
Brake test status, record brake inspection shape are determined according to the working condition of brake pedal, main inspection signal and secondary inspection signal
State issues fault alarm when the number of stoppages for the test status that brakes is more than threshold number；By to brake pedal working condition
Inspection, it is ensured that it is main to examine signal and the secondary accuracy for examining signal, improve the authenticity that signal is examined in brake, improve brake
The accuracy rate that test status determines avoids brake from consistency failure occur, reduces the security risk of vehicle driving.
Based on the above technical solution, according to the working condition of the brake pedal and the main inspection signal and pair
Signal is examined to determine brake test status, comprising:
The main inspection signal and the secondary signal condition for examining signal are compared；If the work shape of the brake pedal
State is on-position and the main inspection signal is consistent with pair inspection signal, it is determined that brake test status is normal condition, no
Then, determine that brake test status is malfunction.
Wherein, signal condition can be main inspection signal brake system status corresponding with pair inspection signal.
In embodiments of the present invention, main inspection signal and the secondary signal value for examining signal can be compared, for example, if
Main inspection signal is high level 1, and it is low level 0 that pair, which examines signal, and main inspection signal examines signal level signal corresponding with pair
Vehicle-state is brake deceleration state, it is believed that main inspection signal examines the signal condition of signal consistent with pair, if main inspection
It tests signal and examines the signal condition of signal consistent and the working condition of brake pedal is on-position with secondary, can determine brake
Test status is normal condition, otherwise, it determines brake test status is malfunction, for example, main inspection signal and secondary inspection letter
Number signal condition is inconsistent and the working condition of brake pedal is non-brake state, it is main to examine signal and the secondary letter for examining signal
Number state is inconsistent but the working condition of brake pedal is on-position, can determine that brake test status is malfunction.
Illustratively, Fig. 4 is the exemplary diagram that a kind of brake test status provided by Embodiment 2 of the present invention determines method, ginseng
See Fig. 4, delay stabilization processing first can be carried out to master/slave inspection signal, remove signal burr and interference；Wherein, postpone stabilization
Method be, when detect brake examine signal after, delay a period of time, after this delay time arrives, if brake inspection
It tests signal to always exist in this timing period, then the brake by delay time after examines signal to pass；If prolonging
Before the slow time arrives, blackout is examined in brake, then it is assumed that is not braked and is examined signal；Stabilization processing when releasing of brake pedal
It is similar, it is all that signal is needed to be kept for the duration of some state need more than threshold value, then it is assumed that and brake examines signal effective,
Otherwise it is assumed that invalidating signal is examined in brake；If master cylinder pressure signal is available and effective, when master cylinder pressure is higher than in advance
If when threshold value, examining signal to carry out consistency desired result master/slave brake and examining system if master cylinder pressure signal is invalid
Dynamic vacuum servo component whether fault-free；If brake vacuum booster parts fault-free, after vacuum pump stops working, when
When pressure elevation amplitude is higher than preset threshold compared to reference pressure in vacuum booster, master/slave inspection signal is carried out consistent
Property verification, if master/slave inspections signal is inconsistent, postpone wait longer time re-start consistency desired result, if lead/
Pair examines signal still inconsistent, then after reaching delay time, records malfunction, if master/slave inspection signal is consistent,
Terminate this brake test status detection, when failure state, as long as the working condition of brake pedal is on-position,
Brake signal is determined as on-position, brake lamp can be controlled according to brake signal and lighted；If in this drive cycle,
If the number of stoppages of record is more than some threshold value, then it is assumed that there are failures for brake major-minor switch, can issue fault warning.
Embodiment three
Fig. 5 is a kind of structural schematic diagram for brake test status determining device that the embodiment of the present invention three provides, and be can be performed
The brake test status that any embodiment of that present invention provides determines method, has the corresponding functional module of execution method and beneficial to effect
Fruit.The device can be specifically included by software and or hardware realization: parameter acquisition module 301, state generation module 302 and inspection
Test state determining module 303.
Wherein, parameter acquisition module 301, it is described for obtaining auxiliary judgment signal when getting brake inspection signal
It includes: main inspection signal and/or secondary inspection signal that signal is examined in brake.
State generation module 302, for determining the working condition of brake pedal according to the auxiliary judgment signal.
Test status determining module 303, for examining signal to determine that shape is examined in brake according to the working condition and brake
State.
The technical solution of the embodiment of the present invention is got by parameter acquisition module including main inspection signal and/or secondary inspection
When testing the brake inspection signal of signal, auxiliary judgment signal is obtained, state generation module steps on brake according to auxiliary judgment signal
The working condition of plate is determined, and test status determining module examines signal to determine according to the working condition and brake of brake pedal
Brake test status, realizes the accurate determination to vehicle brake test status, and vehicle is avoided to lose because of brake test status judgement
Accidentally generate security risk.
On the basis of the above embodiments, the auxiliary judgment signal in parameter acquisition module, comprising: the pressure of master cylinder
The vacuum signal of signal and/or brake vacuum booster parts.
On the basis of the above embodiments, state generation module includes:
Threshold comparison unit, for extracting the signal value of the auxiliary judgment signal, by the signal value and preset threshold
It compares.
Pedal state generation unit, if being greater than or equal to preset threshold for the signal value, it is determined that brake pedal
Working condition is on-position, otherwise, it determines the working condition of brake pedal is non-brake state.
On the basis of the above embodiments, test status determining module, comprising:
First determination unit only includes main inspection signal or secondary inspection for examining signal when the brake obtained in preset duration
When testing signal, determine that the brake test status is malfunction.
Second determination unit includes main inspection signal and secondary inspection for examining signal when the brake obtained in preset duration
When signal, determine that shape is examined in brake according to the working condition of the brake pedal and the main inspection signal and secondary inspection signal
State.
On the basis of the above embodiments, the second determination unit includes:
Contrast subunit, for comparing the main inspection signal and the secondary signal condition for examining signal.
State determines subelement, if the working condition for the brake pedal is effective status and the main inspection signal
Examine signal consistent with pair, it is determined that brake test status is normal condition, otherwise, it determines brake test status is failure shape
State.
On the basis of the above embodiments, device further include:
Alarm module, for recording the braking state, when the malfunction number in the braking state is more than threshold value
When number, fault alarm is issued.
Method provided by any embodiment of the invention can be performed in above-mentioned apparatus, has the corresponding functional module of execution method
And beneficial effect.The not technical detail of detailed description in the present embodiment, reference can be made to the method that any embodiment of that present invention provides.
Example IV
Fig. 6 is a kind of structural schematic diagram for vehicle that the embodiment of the present invention four provides, as shown in fig. 6, the vehicle includes control
Device 60, memory 61, input unit 62 and output device 63 processed；The quantity of controller 60 can be one or more in vehicle,
In Fig. 6 by taking a controller 60 as an example；Controller 60, memory 61, input unit 62 and output device 63 in vehicle can be with
It is connected by bus or other modes, in Fig. 6 for being connected by bus.
Memory 61 is used as a kind of computer readable storage medium, can be used for storing software program, journey can be performed in computer
Sequence and module, as the brake test status in the embodiment of the present invention determines the corresponding program module of method (for example, brake is examined
Parameter acquisition module 301, state generation module 302 and test status determining module 303 in state determination device).Controller
60 software program, instruction and the modules being stored in memory 61 by operation, thereby executing the various function application of vehicle
And data processing, that is, realize that above-mentioned brake test status determines method.
Memory 61 can mainly include storing program area and storage data area, wherein storing program area can store operation system
Application program needed for system, at least one function；Storage data area, which can be stored, uses created data etc. according to terminal.This
Outside, memory 61 may include high-speed random access memory, can also include nonvolatile memory, for example, at least a magnetic
Disk storage device, flush memory device or other non-volatile solid state memory parts.In some instances, memory 61 can be further
Including the memory remotely located relative to controller 60, these remote memories can pass through network connection to vehicle.It is above-mentioned
The example of network includes but is not limited to internet, intranet, local area network, mobile radio communication and combinations thereof.
Input unit 62 can be used for receiving the number or character information of input, and generate with the user setting of vehicle and
The related key signals input of function control.Output device 63 may include that display screen etc. shows equipment.
Further, on the basis of the above embodiments, vehicle further includes brake pedal, master cylinder and brake vacuum portion
Part, wherein brake pedal examines signal for generating brake；Master cylinder, for generating the pressure detected by pressure sensor
Signal；Brake vacuum component, for generating the vacuum signal detected by vacuum transducer.
Embodiment five
The embodiment of the present invention five also provides a kind of storage medium comprising computer executable instructions, and the computer can be held
Row instruction determines method for executing a kind of brake test status when being executed by computer processor, this method comprises:
When getting brake inspection signal, auxiliary judgment signal is obtained, it includes: main inspection letter that signal is examined in the brake
Number and/or secondary examine signal；
The working condition of brake pedal is determined according to the auxiliary judgment signal；
Signal is examined to determine brake test status according to the working condition and brake.
Certainly, a kind of storage medium comprising computer executable instructions, computer provided by the embodiment of the present invention
The method operation that executable instruction is not limited to the described above, can also be performed brake provided by any embodiment of the invention and examines
State determines the relevant operation in method.
By the description above with respect to embodiment, it is apparent to those skilled in the art that, the present invention
It can be realized by software and required common hardware, naturally it is also possible to which by hardware realization, but in many cases, the former is more
Good embodiment.Based on this understanding, technical solution of the present invention substantially in other words contributes to the prior art
Part can be embodied in the form of software products, which can store in computer readable storage medium
In, floppy disk, read-only memory (Read-Only Memory, ROM), random access memory (Random such as computer
Access Memory, RAM), flash memory (FLASH), hard disk or CD etc., including some instructions are with so that a computer is set
Standby (can be personal computer, server or the network equipment etc.) executes method described in each embodiment of the present invention.
It is worth noting that, in the embodiment of above-mentioned brake test status determining device, included each unit and mould
Block is only divided according to the functional logic, but is not limited to the above division, and is as long as corresponding functions can be realized
It can；In addition, the specific name of each functional unit is also only for convenience of distinguishing each other, the protection model being not intended to restrict the invention
It encloses.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of brake test status determines method characterized by comprising
When getting brake inspection signal, auxiliary judgment signal is obtained, it includes: main inspection signal that signal is examined in the brake
And/or secondary inspection signal；
The working condition of brake pedal is determined according to the auxiliary judgment signal；
Signal is examined to determine brake test status according to the working condition and brake.
2. the method according to claim 1, wherein the auxiliary judgment signal, comprising: the pressure of master cylinder
The vacuum signal of signal and/or brake vacuum booster parts.
3. the method according to claim 1, wherein the work for determining brake pedal according to auxiliary judgment signal
Make state, comprising:
The signal value for extracting the auxiliary judgment signal compares the signal value with preset threshold；
If the signal value is greater than or equal to preset threshold, it is determined that the working condition of brake pedal is on-position, otherwise, really
The working condition for determining brake pedal is non-brake state.
4. the method according to claim 1, wherein described examine signal true according to the working condition and brake
Surely brake test status, comprising:
When it only includes main inspection signal or secondary inspection signal that signal is examined in the brake obtained in preset duration, the brake is determined
Test status is malfunction；
When it includes main inspection signal and secondary inspection signal that signal is examined in the brake obtained in preset duration, stepped on according to the brake
The working condition of plate and the main inspection signal and secondary inspection signal determine brake test status.
5. according to the method described in claim 4, it is characterized in that, the working condition according to the brake pedal and described
Main inspection signal and secondary inspection signal determine brake test status, comprising:
The main inspection signal and the secondary signal condition for examining signal are compared；
If the working condition of the brake pedal is effective status and the main inspection signal is consistent with pair inspection signal, it is determined that
Brake test status is normal condition, otherwise, it determines brake test status is malfunction.
6. the method according to claim 1, wherein further include:
The brake test status is recorded, when the malfunction number in the brake test status is more than threshold number, hair
It is out of order alarm.
7. a kind of brake test status determining device characterized by comprising
Parameter acquisition module, for obtaining auxiliary judgment signal when getting brake inspection signal, signal is examined in the brake
It include: main inspection signal and/or secondary inspection signal；
State generation module, for determining the working condition of brake pedal according to the auxiliary judgment signal；
Test status determining module, for examining signal to determine brake test status according to the working condition and brake.
8. device according to claim 7, which is characterized in that the test status determining module includes:
Threshold comparison unit carries out the signal value and preset threshold for extracting the signal value of the auxiliary judgment signal
Comparison；
Pedal state generation unit, if being greater than or equal to preset threshold for the signal value, it is determined that the work of brake pedal
State is on-position, otherwise, it determines the working condition of brake pedal is non-brake state.
9. a kind of vehicle, which is characterized in that the vehicle includes:
One or more controllers；
Memory, for storing one or more programs,
When one or more of programs are executed by one or more of controllers, so that one or more of controllers are real
Now as brake test status as claimed in any one of claims 1 to 6 determines method.
10. vehicle according to claim 9, which is characterized in that further include:
Brake pedal examines signal for generating brake；
Master cylinder, for generating the pressure signal detected by pressure sensor；
Brake vacuum component, for generating the vacuum signal detected by vacuum transducer.
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