CN105774773A - Intelligent automobile braking execution system and implementation method - Google Patents
Intelligent automobile braking execution system and implementation method Download PDFInfo
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- CN105774773A CN105774773A CN201610131512.0A CN201610131512A CN105774773A CN 105774773 A CN105774773 A CN 105774773A CN 201610131512 A CN201610131512 A CN 201610131512A CN 105774773 A CN105774773 A CN 105774773A
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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
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
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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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/176—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS
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- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention provides an intelligent automobile braking execution system and an implementation method, and belongs to the technical field of automobiles. The intelligent automobile braking execution system comprises an automobile braking system. An SBS execution system and an SBS control system are connected to the position behind an automobile braking master pump. The SBS execution system is formed by reversely arranging an interface and applying the interface through an existing mature and reliable ABS hydraulic system assembly. The SBS control system comprises an ABS hydraulic assembly and an electronic control unit assembly. According to the intelligent automobile braking execution system, an existing ABS is skillfully, creatively and boldly applied, the ABS characteristics widely adopted by automobile factories can be fully exerted, the effect that the automatic braking function is implemented is ensured, and the original anti-lock function and artificial braking function of an automobile cannot be influenced; and meanwhile, the new functions of auxiliary automatic braking and the like are achieved, and the using effect is creative.
Description
Technical field
Automobile smart brake performs system and implementation, belongs to automobile technical field.
Background technology
All over the world car get more and more, but existing vehicle needs to lean on driver just can complete braking function, by the restriction of driver's physiological property, every year because of high-speed tire explosion, knock into the back, the brake latency such as fatigue driving and cause a large amount of life and property loss.As improved traffic safety, it is badly in need of adopting intelligent automatic rescue technique, this just be unable to do without a most important actuator, i.e. Braking mode reducing gear, so that after obtaining all kinds of security control instruction, driver is replaced to automatically generate brake power in brakes, and under intelligence system control, opening in time and release Braking mode function, science controls road speed.But that the brakes of vehicle is automobile is most crucial, one of the parts of most critical, brake system of car increases any parts, all need through the strict test of harshness, abundant, sufficiently long, different automobile types, Different climate, different the actual of road conditions is not had to install application additional, this product is definitely reliable and result is controlled not to have a host of facts and historical experience to prove, any depot and car owner, all dare not install use additional.So, although having a lot of new design, technical scheme newly developed that the patents such as invention, utility model is awarded every year, such as Asia-Pacific, Zhejiang and Fu build the technical scheme of medium proposition, also a lot of new product is had to be produced out, and there is Braking mode execution function, but the fact that cruel it is, by the Braking mode force generating mechanism that these technology realize, but never adopted by depot or car owner.Trace it to its cause, it is that any new software and hardware product, equal Yin Qixin's, often not by successfully adopting used historical data proves the manufacturing process of this new product, each component quality, loading pattern, supplies management process etc. in a large number, all can guarantee that high-volume is no problem for the reliability in the function of every product, quality, life-span etc. at once, concordance, and install additional at vehicle hundreds thousand of and up to a million, through hundreds thousand of kilometers, various road conditions and various weather use, can the realization of absolute guarantee's expectation function, do not have accident.Otherwise, once components and parts design, producer select, assembling, monitoring, any one link such as actually used go wrong, it will causing recalling in a large number of depot, the serious reputation damaging depot also brings irreparable damage to it；Even if model machine principle is feasible, but in actual use, if the quality of components and parts etc. not past high/low temperature, vibrate, jolt, the test of the actual environment such as aging, once braking system faults occurs, life with regard to entail dangers to driver and conductor, do not have depot and car owner to dare relieved use, thus cause current car can not be popularized and configure always automatic retarding braking rescue function in a large number.
Therefore, for the urgent demand of automotive safety automated intelligent relief, in conjunction with the actual features of automobile industry, how to find a kind of general, cocksure, car owner and vast depot can be allowed to convince and the Braking mode actuator of relieved use, very urgent and significant.For this, research experience in conjunction with relief field of self blowing out, providing following scheme of the invention this spy, the present invention selects automobile industry generally to approve reception and had the ABS product producing and installing additional application for many years in enormous quantities, in addition ingenious application and reach to solve the purpose of an above-mentioned difficult problem.
Existing ABS system anti-lock function, in links such as products-hardware technology, component quality, buying manufacture assembling and supplies, all have proven to Reliable Products highly developed, that highly trust, general by global depot and consumer and relieved reception adopts, and becomes new car standard configuration device.
But on current each car, the ABS of configuration, does not have self-actuating brake braking function, and its purpose is only when driver is braked, work when vehicle generation locking, purpose is at optimum level by the slip-based controller of vehicle, it is ensured that the control to direction, improves braking effect to greatest extent simultaneously.If making existing ABS have Braking mode function, it is accomplished by its hardware and control program are carried out the transformation of the way of necessity, but because ABS itself is serially connected between master cylinder and wheel cylinder, and slip rate is precisely controlled to guarantee anti-lock function, and the automobile of different vehicles, weight and structure, its control strategy is different again, need individually to demarcate and through a large amount of roads examination relieved use of ability, once newly-increased any components and parts and software design have any flaw, all can cause not it is contemplated that consequence.Therefore the technical scheme that the existing ABS of employing improves, cannot be applied in car load factory always；nullThe ESP system with ABS that is proposed with having implements Braking mode function，But this proposed projects，Do not adopted by institute of depot popularity yet，ESP own is because deployment cost is high first，On the new car that China produces, allocation ratio is just only small，Only luxury car just has，The two control program being because ESP itself is extremely complex，Data and communication interface have a style of one's own，Source code is monopolized by minority producer，Control accurately because relating to slip rate etc.，What change of its software and hardware all will be caused that this car weight is newly demarcated，And the ABS system of every kind of vehicle and ESP control strategy are not general again，Cause that its configuration and popularization difficulty are very big，The control strategy of especially existing EPS is when solving to blow out relief problem，If not revising program will bring bigger disaster，Therefore，Such scheme of the invention is in this special trade of automobile，Dare not be adopted easily always，Thus a large amount of new cars all do not possess Braking mode function.
For this, so that existing vehicle can configure as early as possible can Braking mode actuator in relieved use, preferably provide existing ABS system is not done any hardware modifications can be achieved with safe and intelligent slow down relief technical scheme, such depot could relieved acceptance and put into practical application.
Summary of the invention
It is an object of the invention to provide a kind of automobile smart brake and perform system and implementation.
Automobile smart brake provided by the present invention performs system, brakes including automobile, SBS system it is connected to after automobile brake master cylinder, described SBS system is performed system by SBS and SBS controls system and forms, and the ABS system assembly that described SBS execution system is used by existing mature and reliable forms by being arranged by reverse interface；SBS performs system and includes ABS hydraulic assembly and Electronic Control Assembly；Reverse interface is arranged when referring to that ABS system assembly is used as SBS performs system, the output port that ABS system assembly connect brake cylinder originally is used as the input port of SBS execution system and connects master cylinder, originally the input port connecing master cylinder is used as SBS and performs the output port of system, SBS performs the output port of system and configures the input connecing this ABS system in ABS system situation at vehicle, directly connects brake cylinder when vehicle is configured without ABS system；Described SBS controls system and has running information acquisition system and caution system；
Further, described caution system is made up of the existing Brake lamp of vehicle, double; two flashing light, steering indicating light, driving lamp and loudspeaker；Described SBS performs system and selects multichannel ABS system assembly；
Further, described SBS performs system and selects the ABS system assembly of four-way, two outfans of corresponding same intake channel in four outfans of four-way ABS system assembly are united two into one, two outfans thus merged are used as SBS and perform two inputs of system connection master cylinder, connect two outfans of master cylinder respectively；ABS system assembly was connected originally two inputs of master cylinder, is reversely used as SBS at this and performs two outfans of system, for configuring the vehicle of ABS system assembly, be directly connected to two inputs of this ABS system assembly；For being configured without the vehicle of ABS system assembly, SBS is performed two inputs of system and is divided into two four outfans of acquisition, connect four corresponding brake cylinders respectively；
Further, SBS controls the running information acquisition system that system connects, including speed, current location, tire pressure and blowing out, crashproof, knock into the back, fatigue driving, parking, brake pedal, the acquisition system of vehicle body steady state signal, there is global position system and radio receiving transmitting module, there is CAN, automatically the signal that judgement gathers can be analyzed in real time, finding hypervelocity, high-speed tire explosion, fatigue driving, to lose control of one's vehicle, it is about to knock into the back, road ahead meteorology is dangerous, when section management and control and needs stop in emergency with aid parking, can automatically accept mobile phone or wireless instructions that remote monitoring platform sends, drive SBS to perform system and implement automatic retarding and parking；
Further, control system at SBS be configured with SBS execution system manual actuation of button and manually release button, making SBS perform system and can substitute for driver's both feet, manually button starts and releases this system, such that it is able to manually implement the deceleration of vehicle, braking and parking operation；
Automobile smart brake provided by the present invention performs the implementation of system, adopts above-mentioned automobile smart brake to perform system, including following:
(1) SBS controls the analysis judgement that system carries out according to self collection information, accept the instruction that CAN, mobile phone or remote wireless controlled send, when performing Braking mode or cutoff command at needs, perform system to SBS and send the execution instruction of wheel lock up Braking mode；SBS control assembly makes the normally open solenoid valve closedown of inside, normally closed solenoid valve open, reflux pump extracts brake fluid from low pressure accumulator and master cylinder, the brake cylinder of the pressurized delivered ABS system assembly to vehicle or each wheel, thus realizing Braking mode and parking purpose；
(2) system monitor in real time speed state is controlled, when judging that speed is reduced to setting speed or reaches braking relief purpose, perform system from trend SBS and send the releasing instruction of vehicle locking signal, SBS performs internal system normally open valve and returns to normally open, normally close valve returns to normally off, SBS performs the brake force of system foundation and automatically disappears, return to the state of 4 normally open valve loops and 4 straight-through vehicle ABS system in bypass check valve loop or the brake cylinder performing system from master cylinder through SBS, driver can pass through each normally open valve and artificial braking is arbitrarily implemented in check valve loop；
(3) implement in Braking mode process in SBS system, control system can make the SBS each normally open solenoid valve performing system be in high frequency opening and closing mode and implement high frequency points and stop, time in the meantime if any wheel lock up, then the ABS system of vehicle configuration automatically turns on, brake fluid in locking wheel can be performed system through SBS and carry to master cylinder direction by reflux pump automatically, the high-pressure brake liquid of this loopback can perform system normally open valve high frequency open gap at SBS and be sent back to master cylinder through SBS execution system, so that brake fluid instantaneous reduction in locking wheel, locking phenomenon is able to timely releasing；To the vehicle being configured without ABS system, the high frequency points braking mode of this SBS system, the direction out of control that wheel lock up causes can be prevented effectively from；
(4) in implementing Braking mode process, if driver also steps on braking footrest, the brake force that driver applies, it is possible to perform 4 check valve loops of system bypass by SBS or be applied to brake cylinder in the gap that normally open valve is opened；
(5) when Braking mode, SBS controls system and will automatically light loudspeaker, driving lamp, and the steering indicating light needed for double; two flashing lights or lane change, immediately to trailing or nearby vehicle transmission information warning；
(6) when SBS controls the wireless instructions that system receives driver's manually button inputted startup and releasing instruction and mobile phone or remote monitoring platform transmission, can automatically start Braking mode function and release Braking mode function, and automatically abort situation, fault time and failure mode are sent to when this car exception mobile phone or remote monitoring platform；
(7) SBS controls system when implementing to blow out relief, will automatically monitor speed and reduce state, and when the speed of vehicle of blowing out is automatically lowered to the characteristic velocity of 60km/h, will automatically send releasing instruction, releases the Braking mode rescue function to vehicle of blowing out in time；
Further, SBS controls system monitor in real time speed can reduce speed, the switch off time ratio of system normally open valve and normally close valve is performed by controlling SBS, or under keeping the normally opened situation of normally close valve, by controlling opening/closing time ratio and the time length of normally open valve, implement the adjustment to brake force size so that vehicle of running at high speed, according to the target speed value set and best deceleration speed, implement steadily to slow down；
Further, SBS performs system and can serve as auxiliary self-sustaining gear when driver is braked, and can help when driver brakes deficiency to realize fast automatic braking, and method is as follows:
(1) quickly push down on the pedal control system discovery driver, or when Brake lamp is connected, then start rapidly SBS and perform system, first under normally open valve opening, first open normally close valve, start reflux pump pressurized operation, brakes is quickly set up brake force；
(2) if it find that braking effect is still undesirable, driver is stepping on brake pedal always, then controlling SBS and perform system by normally open valve closedown, blocking the high-pressure brake liquid loop to master cylinder, thus setting up high brake pressure in brakes；
(3) lifting foot at control system monitoring to driver, when Brake lamp signal extinguishes, then send brake release instruction, normally open valve, normally close valve and reflux pump motor dead electricity, brakes moment loses brake pressure；
Further, SBS can be made to perform system there is low pressure accumulation of energy function, realize method as follows: control system detect manually brake time, close after normally close valve is opened in short-term, thus the brake pressure set up when utilizing artificial braking, set up in each low pressure accumulator and store precompression, implementing to blow out or during emergency brake, first will extract pressurized brake fluid when SBS performs system start-up high pressure reflow pump from low pressure accumulator, improve brake force when response speed and moment output；
Further, SBS controls the global position system that has of system and radio receiving transmitting module, it is possible to realize and the interconnecting of road location speed between other vehicle and remote monitoring platforms and directional information, retarding braking and information warning and manipulation instruction.
The present invention actively has the beneficial effects that the ABS system adopting existing mature and reliable can form intelligent braking system after simple refit, and on automobile, reliability is high.
Accompanying drawing explanation
Fig. 1 is SBS system loading pattern schematic diagram.
Fig. 2 is that SBS performs the oil circuit figure after system is connected with ABS system.
Detailed description of the invention
In conjunction with accompanying drawing, the present invention is illustrated in further details, accompanying drawing is respectively labeled as: 1:ABS system；2:SBS system；3: master cylinder；41: left rear wheel；42: the near front wheel；43: off-front wheel；44: off hind wheel；11: normally opened inlet valve one；12: normally closed delivery valve one；13: accumulator one；14: reflux pump one；15: check valve one；21: normally opened inlet valve two；22: normally closed delivery valve two；23: accumulator two；24: reflux pump two；15: check valve two；ABS system refers to (Anti-lockBrakingSystem) anti-lock braking system, ABS system is also abs braking pressure regulating system, as shown in drawings, it is shown that act on the ABS system on a wheel, identical on other wheel.nullFirst the ABS system in figure is made an explanation，Figure is the oil circuit figure of a kind of ABS system common at present in the square frame shown in 1，When ABS does not start，Inlet valve in figure、Delivery valve dead electricity，In dead electricity situation, inlet valve one is normally open valve，Delivery valve one is normally close valve，Check valve is unidirectional from wheel to master cylinder direction，When SBS，The port A of ABS system、B is both connected on master cylinder respectively，During normal brake application，For left rear wheel 41，Push down on the pedal，Hydraulic oil in master cylinder enters the brake cylinder of left rear wheel 41 from A through normally opened inlet valve one，Produce brake force，After loosening the brake，The hydraulic oil of the brake cylinder of left rear wheel 41 is back in master cylinder through check valve and normally opened inlet valve，When brake hard，If the sensor on wheel sends locking signal，At this moment ABS control system control normally opened inlet valve one and normally closed delivery valve one all electric，Now normally opened inlet valve one cuts out，Normally closed delivery valve one is opened，Hydraulic oil in brake cylinder 41 enters in accumulator 1 from normally closed delivery valve one，Reflux pump one starts simultaneously，Brake fluid oil in 41 is delivered in master cylinder，The brake cylinder oil pressure making the wheel by locking reduces，Locking phenomenon releases，Hereafter，After vehicle wheel rotational speed returns to certain value，The ECU of ABS system uses normally closed fuel tap one power-off and closes，The power-off of normally opened inlet valve one is opened，Increase along with brake pressure，Vehicle wheel vehicle speeds reduces again，Such iterative cycles，By the slip-based controller of wheel about 20% while braking.
The SBS system of the present invention, SBS is the abbreviation of SmartBreakSystem, is directly connected to each brake cylinder and forms when being connected to master cylinder and the existing ABS system of vehicle by existing ABS system by reversal connection or do not had ABS system.Now with four-way ABS system, namely four-way ABS hydraulic actuator assembly is example as brake force generation and the execution device SBS of Braking mode, describes as follows by technical solution of the present invention:
As shown in Figure 2, two input respectively A and B of four-way ABS hydraulic actuator assembly, two outfans corresponding with input A after ABS system are L1 and L3, two outfan L1 and L3 of corresponding input A are an output terminals A A by threeway parallel connection by two outfan respectively L2 and L4 corresponding with input B；In like manner, it is an outfan BB by two corresponding for input B outfan L2 and L4 by threeway parallel connection, then the ABS hydraulic actuator assembly that will thus obtain, reversely it is concatenated between automobile brake master cylinder and the original ABS hydraulic actuator assembly of automobile, automobile smart brake as the present invention performs system, is called for short SBS.When being embodied as, ABS was connect originally two input A and B of master cylinder, as two outfans of this SBS, picked up two inputs of existing ABS hydraulic actuator assembly respectively；Two output terminals A A and the BB that will obtain after 4 outfan L1-L4 parallel connections, are used separately as two inputs of SBS pump, connect original two outfans of automobile brake master cylinder.
Now SBS method and operation principle as automobile smart brake execution system enforcement traffic safety relief will be used to describe as follows:
When 1, normally travelling, SBS control system does not send working method during Braking mode execution instruction:
Automobile smart brake performs the control system of system, provides all peripheral electric signal parameter needed of ABS when not there is locking.It is simultaneously entered the analogue signal with unified velocity magnitude such as to tetra-wheel speed signal inputs of SBS, at SBS Brake lamp signal input part, the signal of telecommunication that simulation input brake pedal is required when not stepping on, supply voltage required during offer SBS normal operation etc., then according to the structure of ABS and working condition, SBS system should when not having wheel lock up, its four internal inlet valves are normally opened, four delivery valves are normally closed, between input AA and the output terminals A of SBS, it is normal open state between input BB and output B, reflux pump in SBS does not also work, SBS itself does not produce any brake power.At this moment, driver is brake pedal when normal brake application, and the brake fluid in master cylinder directly enters after SBS from the AA end of SBS and BB end, flows out from two outfans of A and B respectively.For left rear wheel 41, sequentially pass through the normally open valve 21 within AA, SBS during brake fluid braking and the check valve 25 within SBS, A, 11 wheel cylinder entering left rear wheel 41 produce brake force.After driver loosens the brake, brake fluid through 15 and 11, A, 21, AA be back to master cylinder..So whole brakes, the same with the original vehicle with abs pump, driver can implement the artificial braking of routine at any time.When driver implements manually to brake, if there is wheel lock up, the then brake fluid in the brake cylinder that locking is taken turns by ABS reflux pump, send master cylinder back to by AA--A or BB--B path normally opened for SBS, the release brake force to this wheel, thus implementing normal anti-lock function.
nullBlow out in burst、To knock into the back with front truck、Drive over the speed limit etc. and to need emergency auto braking and when driver does not react，The signal of telecommunication that SBS central control system required when there is locking to SBS hydraulic executing system simulation four wheels of input simultaneously，Such as: what vehicle speed sensor input received is no-voltage、The signal of telecommunication of zero frequency、What Brake lamp signal input part received is high level or Low level effective signal etc. that Brake lamp is switched on，At this moment this ABS hydraulic actuator assembly being used as SBS is activated startup by its electric-control system immediately，Its four internal normally open valves simultaneously close off，Four normally close valves are opened simultaneously，The hydraulic pump of SBS starts，The input of master cylinder is connected by AA and BB two，Brake fluid is extracted continuously from master cylinder and receiver，Respectively brake fluid is flowed through abs pump through two inputs of abs pump by two output terminals A and B after pressurization，The brake cylinder respectively enteing four wheels again through four outfans of abs pump produces brake force，Thus realizing Braking mode function.For Fig. 2, after SBS system obtains the signal of four wheel lock ups simulated, inside must be electrically turn off at 4 interior normally open valves containing 21, electric opening is obtained at 4 interior normally close valves containing 22, reflux pump 24 starts simultaneously, brake fluid is extracted continuously from each accumulator and master cylinder 3, high-pressure brake liquid is entered by two outfans of A and B two inputs of ABS, four outfans through ABS system respectively enter the brake cylinder of four wheels and produce brake force, thus realizing Braking mode function.When speed is reduced to setting speed or reaches braking relief purpose, central control system sends vehicle to SBS and travels the dummy instruction normally not having locking, namely Braking mode instruction is released, the electric-control system of SBS is to motor internal and all electromagnetic valve power-off, hydraulic pump motor and hydraulic pump quit work, and normally close valve dead electricity recovers the normally closed function of place pipeline, the normally opened function of normally open valve valve power interruption recovering place pipeline, brake cylinder and master cylinder recover straight-through, and the brake force moment that SBS sets up disappears automatically.When driver does not pay attention to brake pedal, whole system no longer has brake force.
When SBS contingency fault cannot work, its result is by as conventional abs pump, because 4 normally open valves are normally opened when dead electricity, A-AA and B-BB all has two-way normally open valve, just can be standby each other, therefore still ensuring that when driver manually brakes, unimpeded between master cylinder and original ABS system of brake fluid, thus not affecting the reliability that driver manually brakes.
Additionally, in conventional ABS, be respectively provided with a unidirectional bypass valve in the loop of each brake cylinder, as shown in 15, this check valve makes the brake fluid of brake cylinder can be quickly returning in master cylinder the pressure discharging in wheel cylinder.When ABS is reversed connection as SBS, it is equivalent to be routed between abs pump from master cylinder through two of AA-A and BB-B of SBS, each road except two normally open valves standby each other except, the bypass that two-way check valve is made also all is had to carry out standby, be equivalent to from AA to A, from BB to B, all there are 4 roads unimpeded and standby each other, therefore, adopt this SBS structure, even if normally open solenoid valve is just in case breaking down and cannot turning on, but the check valve as frame for movement does not have fault, so in extreme circumstances, this occupation mode cleverly, it is able to ensure that the artificial braking function of driver.
If in SBS Braking mode process, there is some wheel or several wheel lock up phenomenon, then the original ABS system of vehicle is started working, the inlet valve of locking wheel cuts out, delivery valve is opened, reflux pump starts the brake fluid that locking is taken turns wheel cylinder, it is necessary to flows through SBS and returns master cylinder, in order to reduce oil pressure in this locking wheel brake cylinder；And if now SBS is in lasting duty, internal normally open valve is closed, the brake fluid that the brake fluid that then abs pump is drawn back exports with SBS will resist, brake fluid in locking wheel wheel cylinder cannot be back to master cylinder by SBS system, this will cause the inefficacy of ABS anti-lock function, direction when blowing out relief brake hard is caused to lose, thus calamitous vehicle accident can be caused on a highway.This be adopt existing ABS actuator provide brake power time need faced by greatest problem, directly influence its as various safe emergency brakes perform device definitely scientific and absolute reasonability.For this, present invention further propose that techniques below scheme, uniqueness solves this problem dexterously, give full play to the mature and reliable of existing ABS system hardware designs and manufacture, accomplish again when still not increasing any hardware, avoid the query of newly-increased any parts initiating system reliability, it is to avoid the suspection to this whole system and the production of newly-increased components and parts, manufacture, inspection and management etc., and need the trouble carrying out substantial amounts of vehicle and road examination.The present invention realizes maintaining the method for braking and anti-lock function: SBS is when implementing Braking mode function, control system will maintain four normally close valves and reflux pump persistently obtains electric-opening state, normally open valve now is needed originally by being electrically turn off being set to the working method of high frequency interval opening and closing, namely 4 normally open valves within SBS are set, it is operated with high opening and closing frequency and rational opening/closing time ratio, such as opening and closing frequency per second is 20 times, each opening time and shut-in time ratio are 20%:80%, are equivalent to set up high frequency points braking power inside SBS.The high-pressure brake liquid that during such wheel lock up, the original ABS reflux pump of vehicle is drawn back, master cylinder will be transported to by SBS system in the interval that each high frequency of SBS normally open valve is opened, so that the brake fluid instantaneous reduction in the brake cylinder at locking wheel place, brake pressure is released, locking phenomenon is able to timely releasing, and SBS reflux pump is still continuing extraction brake fluid pressurization output from master cylinder, so that SBS is in the state of sustainable supply brake force, moment maintenance system there is enough brake force to exist.For Fig. 2, SBS controls system and opens and closes with the high normally opened inlet valve 2 21 of FREQUENCY CONTROL, because there being the time (such as 80%) of enough maintenance brake force, therefore SBS is in whole process, still uniformly effectively exporting sufficiently large brake force, thus having taken into account the anti-lock function effectively controlling function and ABS to speed.And the length in existing ABS system is opened and normally closed solenoid valve, originally just there is the high frequency opening and closing response function of mature and reliable, it is not required to slip rate is controlled when being used as SBS, accordingly act as SBS and will be greatly simplified its control strategy, there is the versatility in each vehicle, feasibility and reliability completely.
This SBS system can serve as auxiliary self-sustaining gear when driver is braked, and can help when driver brakes deficiency to realize fast automatic braking, and method is as follows:
(1) quickly push down on the pedal control system discovery driver, or when Brake lamp is connected, then start rapidly SBS system, first under normally open valve opening, first open the normally close valve of inside, start reflux pump pressurized operation, brakes is quickly set up brake force；
(2) if it find that braking effect is still undesirable, driver is stepping on brake pedal always, then internal normally open valve is closed by notice SBS, blocks the high-pressure brake liquid loop to master cylinder, thus setting up high brake pressure in brakes；
(3) lifting foot at control system monitoring to driver, when Brake lamp signal extinguishes, then send brake release instruction, normally open valve, normally close valve and reflux pump motor dead electricity, brakes moment loses brake pressure.
Further, SBS controls system and receives driver's manually button inputted startup and release instruction, and mobile phone or remote monitoring platform send wireless instructions time, can automatically start Braking mode function and release Braking mode function, and automatically abort situation, fault time and failure mode are sent to when this car exception mobile phone or remote monitoring platform.
Further, SBS controls system and has global position system and radio receiving transmitting module, it is possible to realize and the interconnecting of road location speed between other vehicle and remote monitoring platforms and directional information, retarding braking and information warning and manipulation instruction.Such as, install the vehicle of this system additional when same sections of road simultaneously, can the mutual running information of switched wireless, it is also possible to automatic retarding and Brake stop are implemented in the brake hard instruction accepting remote monitoring platform when needed, to evade front potentially dangerous or to realize traffic control.And for example, driver can pass through mobile phone, monitors the wheelpath of oneself vehicle, and sends instruction, directly implements remotely to slow down and braking, it is achieved the anti-theft feature of vehicle, and evade vehicle drive over the speed limit or non-prescribed path forbid driving functions.And for example, when Ben Che has to Reduced Speed Now because of blowing out, but rear car does not find that this car slows down in time is still trailing and it may happen that knock into the back at a high speed, or this car fault is when cannot drive a vehicle, when rear car is also equipped with this SBS system, the analysis of this car SBS travelling data by rear car is shared, automatically rear car or nearby vehicle can be sent emergency deceleration instruction when necessary, rear car, after the instruction obtaining front truck, can perform the deceleration avoiding operation of necessity automatically, in order to avoid generation of knocking into the back.
] therefore, this occupation mode, the hardware giving full play to and make use of existing ABS is constituted, Braking mode function can be fully achieved, and adopt now ripe mass production processes technology and equipment, its existing reliable believable history is utilized to use data, need not be verified in the quality such as component quality and production assembling, do not affect the vehicle existing ABS control parameter to slip rate, completely can be general by the different types of automobile institute of all depots, exploitation new equipment can be greatly reduced, the cost of new parts and substantial amounts of manpower and materials consumption, it is very beneficial for depot in the vehicle newly gone out and on the vehicle of existing production, quickly install and configure this multi-purpose vehicle(MPV) safety intelligent brake additional and perform system.The ABS used in the present invention refers to ABS system.
Structure shown in the above embodiment of the present invention and configuration are merely schematic.Although above-described embodiment is described in detail in the disclosure, but being without materially departing under the novel teachings of theme described herein and the premise of advantage, many improvement are all possible, without departure from protection scope of the present invention.
Claims (10)
1. automobile smart brake performs system, brakes including automobile, it is characterized in that: after automobile brake master cylinder, be connected to SBS system, described SBS system is performed system by SBS and SBS controls system and forms, and the ABS system assembly that described SBS execution system is used by existing mature and reliable forms by being arranged by reverse interface；SBS performs system and includes ABS hydraulic assembly and Electronic Control Assembly；Reverse interface is arranged when referring to that ABS system assembly is used as SBS performs system, the output port that ABS system assembly connect brake cylinder originally is used as the input port of SBS execution system and connects master cylinder, originally the input port connecing master cylinder is used as SBS and performs the output port of system, SBS performs the output port of system and configures the input connecing this ABS system in ABS system situation at vehicle, directly connects brake cylinder when vehicle is configured without ABS system；Described SBS controls system and has running information acquisition system and caution system.
2. automobile smart brake according to claim 1 performs system, it is characterised in that: described caution system is made up of the existing Brake lamp of vehicle, double; two flashing light, steering indicating light, driving lamp and loudspeaker；Described SBS performs system and selects multichannel ABS system assembly.
3. automobile smart brake according to claim 1 performs system, it is characterized in that: described SBS performs system and selects the ABS system assembly of four-way, two outfans of corresponding same intake channel in four outfans of four-way ABS system assembly are united two into one, two outfans thus merged are used as SBS and perform two inputs of system connection master cylinder, connect two outfans of master cylinder respectively；ABS system assembly was connected originally two inputs of master cylinder, is reversely used as SBS at this and performs two outfans of system, for configuring the vehicle of ABS system assembly, be directly connected to two inputs of this ABS system assembly；For being configured without the vehicle of ABS system assembly, SBS is performed two inputs of system and is divided into two four outfans of acquisition, connect four corresponding brake cylinders respectively.
4. automobile smart brake according to claim 1 performs system, it is characterized in that: SBS controls the running information acquisition system that system connects, including speed, current location, tire pressure and blowing out, crashproof, knock into the back, fatigue driving, parking, brake pedal, the acquisition system of vehicle body steady state signal, there is global position system and radio receiving transmitting module, there is CAN, automatically the signal that judgement gathers can be analyzed in real time, finding hypervelocity, high-speed tire explosion, fatigue driving, to lose control of one's vehicle, it is about to knock into the back, road ahead meteorology is dangerous, when section management and control and needs stop in emergency with aid parking, can automatically accept mobile phone or wireless instructions that remote monitoring platform sends, drive SBS to perform system and implement automatic retarding and parking.
5. perform system according to the automobile smart brake in claim 1, it is characterized in that: control system at SBS and be configured with SBS execution system manual actuation of button and manually release button, make SBS perform system and can substitute for driver's both feet, manually button starts and releases this system, such that it is able to manually implement the deceleration of vehicle, braking and parking operation.
6. automobile smart brake performs the implementation of system, it is characterised in that: adopt the automobile smart brake of claim 1-5 to perform system, including following:
(1) SBS controls the analysis judgement that system carries out according to self collection information, accept the instruction that CAN, mobile phone or remote wireless controlled send, when performing Braking mode or cutoff command at needs, perform system to SBS and send the execution instruction of wheel lock up Braking mode；SBS control assembly makes the normally open solenoid valve closedown of inside, normally closed solenoid valve open, reflux pump extracts brake fluid from low pressure accumulator and master cylinder, the brake cylinder of the pressurized delivered ABS system assembly to vehicle or each wheel, thus realizing Braking mode and parking purpose；
(2) system monitor in real time speed state is controlled, when judging that speed is reduced to setting speed or reaches braking relief purpose, perform system from trend SBS and send the releasing instruction of vehicle locking signal, SBS performs internal system normally open valve and returns to normally open, normally close valve returns to normally off, SBS performs the brake force of system foundation and automatically disappears, return to the state of 4 normally open valve loops and 4 straight-through vehicle ABS system in bypass check valve loop or the brake cylinder performing system from master cylinder through SBS, driver can pass through each normally open valve and artificial braking is arbitrarily implemented in check valve loop；
(3) implement in Braking mode process in SBS system, control system can make the SBS each normally open solenoid valve performing system be in high frequency opening and closing mode and implement high frequency points and stop, time in the meantime if any wheel lock up, then the ABS system of vehicle configuration automatically turns on, brake fluid in locking wheel can be performed system through SBS and carry to master cylinder direction by reflux pump automatically, the high-pressure brake liquid of this loopback can perform system normally open valve high frequency open gap at SBS and be sent back to master cylinder through SBS execution system, so that brake fluid instantaneous reduction in locking wheel, locking phenomenon is able to timely releasing；To the vehicle being configured without ABS system, the high frequency points braking mode of this SBS system, the direction out of control that wheel lock up causes can be prevented effectively from；
(4) in implementing Braking mode process, if driver also steps on braking footrest, the brake force that driver applies, it is possible to perform 4 check valve loops of system bypass by SBS or be applied to brake cylinder in the gap that normally open valve is opened；
(5) when Braking mode, SBS controls system and will automatically light loudspeaker, driving lamp, and the steering indicating light needed for double; two flashing lights or lane change, immediately to trailing or nearby vehicle transmission information warning；
(6) when SBS controls the wireless instructions that system receives driver's manually button inputted startup and releasing instruction and mobile phone or remote monitoring platform transmission, can automatically start Braking mode function and release Braking mode function, and automatically abort situation, fault time and failure mode are sent to when this car exception mobile phone or remote monitoring platform；
(7) SBS controls system when implementing to blow out relief, will automatically monitor speed and reduce state, and when the speed of vehicle of blowing out is automatically lowered to the characteristic velocity of 60km/h, will automatically send releasing instruction, releases the Braking mode rescue function to vehicle of blowing out in time.
7. automobile smart brake according to claim 6 performs the implementation of system, it is characterized in that: SBS controls system monitor in real time speed can reduce speed, the switch off time ratio of system normally open valve and normally close valve is performed by controlling SBS, or under keeping the normally opened situation of normally close valve, by controlling opening/closing time ratio and the time length of normally open valve, implement the adjustment to brake force size so that vehicle of running at high speed, according to the target speed value set and best deceleration speed, implement steadily to slow down.
8. automobile smart brake according to claim 6 performs the implementation of system, it is characterized in that: SBS performs system and can serve as auxiliary self-sustaining gear when driver is braked, can helping when driver brakes deficiency to realize fast automatic braking, method be as follows:
(1) quickly push down on the pedal control system discovery driver, or when Brake lamp is connected, then start rapidly SBS and perform system, first under normally open valve opening, first open normally close valve, start reflux pump pressurized operation, brakes is quickly set up brake force；
(2) if it find that braking effect is still undesirable, driver is stepping on brake pedal always, then controlling SBS and perform system by normally open valve closedown, blocking the high-pressure brake liquid loop to master cylinder, thus setting up high brake pressure in brakes；
(3) lifting foot at control system monitoring to driver, when Brake lamp signal extinguishes, then send brake release instruction, normally open valve, normally close valve and reflux pump motor dead electricity, brakes moment loses brake pressure.
9. automobile smart brake according to claim 6 performs the implementation of system, it is characterized in that: SBS can be made to perform system there is low pressure accumulation of energy function, realize method as follows: control system detect manually brake time, close after normally close valve is opened in short-term, thus the brake pressure set up when utilizing artificial braking, each low pressure accumulator is set up and stores precompression, blow out or during emergency brake implementing, first pressurized brake fluid will be extracted from low pressure accumulator when SBS performs system start-up high pressure reflow pump, improve brake force when response speed and moment output.
10. automobile smart brake according to claim 6 performs the implementation of system, it is characterized in that: SBS controls the global position system that has of system and radio receiving transmitting module, it is possible to realize and the interconnecting of road location speed between other vehicle and remote monitoring platforms and directional information, retarding braking and information warning and manipulation instruction.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515447A (en) * | 2016-12-03 | 2017-03-22 | 东莞市皓奇企业管理服务有限公司 | Using method of intelligent network automobile anti-collision device |
| CN106926835A (en) * | 2017-03-28 | 2017-07-07 | 奇瑞汽车股份有限公司 | A kind of intelligent vehicle line traffic control integrated brake system and control method |
| CN108545068A (en) * | 2018-06-06 | 2018-09-18 | 江苏盛海智能科技有限公司 | A kind of all-terrain vehicle control brake gear and system |
| CN110203185A (en) * | 2019-05-28 | 2019-09-06 | 万向钱潮股份有限公司 | A kind of master cylinder with liquid storage chamber |
| CN114148304A (en) * | 2022-02-07 | 2022-03-08 | 深圳佑驾创新科技有限公司 | Vehicle anti-lock optimization control method and device |
| CN115052796A (en) * | 2020-02-18 | 2022-09-13 | 沃尔沃卡车集团 | Dual trailer connection and automatic detection |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE4425578A1 (en) * | 1994-07-20 | 1996-01-25 | Teves Gmbh Alfred | Method for operating an anti-lock motor vehicle brake system |
| DE4435623A1 (en) * | 1994-10-05 | 1996-04-11 | Bosch Gmbh Robert | Tandem master cylinder for motor vehicle ABS and ASR braking systems |
| CN2442902Y (en) * | 2000-07-11 | 2001-08-15 | 魏延达 | Full-automatic safety brake for automobile |
| CN205365572U (en) * | 2016-03-09 | 2016-07-06 | 王德红 | Car intelligence braking execution systems |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515447A (en) * | 2016-12-03 | 2017-03-22 | 东莞市皓奇企业管理服务有限公司 | Using method of intelligent network automobile anti-collision device |
| CN106926835A (en) * | 2017-03-28 | 2017-07-07 | 奇瑞汽车股份有限公司 | A kind of intelligent vehicle line traffic control integrated brake system and control method |
| CN108545068A (en) * | 2018-06-06 | 2018-09-18 | 江苏盛海智能科技有限公司 | A kind of all-terrain vehicle control brake gear and system |
| CN110203185A (en) * | 2019-05-28 | 2019-09-06 | 万向钱潮股份有限公司 | A kind of master cylinder with liquid storage chamber |
| CN110203185B (en) * | 2019-05-28 | 2023-10-24 | 万向钱潮股份公司 | Brake master cylinder with liquid storage cavity |
| CN115052796A (en) * | 2020-02-18 | 2022-09-13 | 沃尔沃卡车集团 | Dual trailer connection and automatic detection |
| CN114148304A (en) * | 2022-02-07 | 2022-03-08 | 深圳佑驾创新科技有限公司 | Vehicle anti-lock optimization control method and device |
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| CN105774773B (en) | 2018-03-27 |
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