CN207423539U

CN207423539U - Towards the testing stand of commercial semitrailer active emergency braking system

Info

Publication number: CN207423539U
Application number: CN201721276516.4U
Authority: CN
Inventors: 朱冰; 张培兴; 赵健; 冯瑶; 田海舰
Original assignee: Jilin University
Current assignee: Jilin University
Priority date: 2017-09-30
Filing date: 2017-09-30
Publication date: 2018-05-29
Anticipated expiration: 2027-09-30

Abstract

The utility model discloses the testing stand towards commercial semitrailer active emergency braking system, the problem of can not carrying out active brake to semitrailer brake system at present is overcome, including control section and mechanical part；Control section includes processor board (50), interface panel (51), wire connection terminal (52), host computer (53) and display (54)；Host computer (53) is connected with processor board (50) cable, processor board (50) is connected with interface panel (51) data cable, interface panel (51) is connected with 1~26 interface data wire of the one side of wire connection terminal (52), the pressurize solenoid valve of wire connection terminal (52) opposite side and mechanical part, vacuum solenoid valve, semitrailer solenoid valve (17), tractor rear axle solenoid valve (36), tractor front axle solenoid valve (49), JHBM pressure sensors (26 13) data cable connection in pressure transmitter and braking simulation mechanism.

Description

Towards the testing stand of commercial semitrailer active emergency braking system

Technical field

The utility model is related to a kind of testing stand of semitrailer active emergency braking system, more precisely, this practicality is new Type is related to a kind of testing stand of the commercial semitrailer active emergency braking system towards air-pressure brake.

Background technology

With the development of automotive safety technology, the technology in terms of automobile active safety is also constantly improving.Thereupon , the measuring technology of various active safety technologies also constantly develops.At this stage, active emergency braking technology uses real vehicle more Test, during test, time-consuming for real steering vectors, and of high cost and for personnel time loss are bigger.For braking Urgent formulation system is said always, and the damage of personnel and the destruction of vehicle are easily caused in test failure.Therefore, a kind of energy is built The testing stand for enough testing semitrailer active emergency braking AEB systems has very important significance.For semitrailer brake system Testing stand for, the patented product in China is all the testing stand for carrying out air-pressure brake and electric control braking at present, there is presently no It can realize the testing stand of semitrailer emergency situation active brake.

The content of the invention

Technical problem to be solved in the utility model be overcome existing testing stand can not be to semitrailer brake system The problem of carrying out active brake provides a kind of commercial semitrailer active emergency braking system towards air-pressure brake and develops test Hardware-in-the-loop test platform.

In order to solve the above technical problems, the utility model adopts the following technical scheme that realization：It is described towards commercialization The testing stand of semitrailer active emergency braking system includes control section and mechanical part；

The control section includes processor board, interface panel, wire connection terminal, host computer and display；

It is connected using cable between the host computer and processor board, is adopted between processor board and interface panel It is connected with data cable, is connected, connect using data cable between the interface panel 1-26 interfaces of interface panel and the one side of wire connection terminal Pressurize solenoid valve, vacuum solenoid valve, semitrailer solenoid valve, tractor rear axle electromagnetism in the opposite side and mechanical part of line terminals Data cable is used between JHBM pressure sensors in valve, tractor front axle solenoid valve, pressure transmitter and braking simulation mechanism Connection.

Pressurize solenoid valve, vacuum solenoid valve in the opposite side and mechanical part of wire connection terminal described in technical solution, In semitrailer solenoid valve, tractor rear axle solenoid valve, tractor front axle solenoid valve, pressure transmitter and braking simulation mechanism Referred between JHBM pressure sensors using data cable connection：

The pressurize solenoid valve includes the right pressurize solenoid valve of tractor front axle, the left pressurize solenoid valve of tractor front axle, leads Draw the right pressurize solenoid valve of vehicle rear axle, the left pressurize solenoid valve of tractor rear axle, the right pressurize solenoid valve of semitrailer and the left pressurize of semitrailer Solenoid valve；The vacuum solenoid valve includes the right vacuum solenoid valve of tractor front axle, the left vacuum solenoid valve of tractor front axle, traction The right vacuum solenoid valve of vehicle rear axle, the left vacuum solenoid valve of tractor rear axle, the right vacuum solenoid valve of semitrailer and the left decompression electricity of semitrailer Magnet valve；The pressure transmitter includes the right pressure transmitter of tractor front axle, the right pressure transmitter of tractor rear axle, semitrailer The left pressure transmitter of right pressure transmitter, semitrailer, the left pressure transmitter of tractor rear axle and the left pressure inverting of tractor front axle Device；The braking simulation mechanism includes the right braking simulation mechanism of tractor front axle, the right braking simulation mechanism of tractor rear axle, half The right braking simulation mechanism of trailer, the left braking simulation mechanism of semitrailer, the left braking simulation mechanism of tractor rear axle and tractor front axle Left braking simulation mechanism.

Corresponded on wire connection terminal with interface panel 1-26 interfaces outgoing position respectively pressurize solenoid valve right with tractor front axle, The left pressurize solenoid valve of tractor front axle, the right pressurize solenoid valve of tractor rear axle, the left pressurize solenoid valve of tractor rear axle, semitrailer are right The left pressurize solenoid valve of pressurize solenoid valve, semitrailer, the right vacuum solenoid valve of tractor front axle, the left vacuum solenoid valve of tractor front axle, The right vacuum solenoid valve of tractor rear axle, the left vacuum solenoid valve of tractor rear axle, the right vacuum solenoid valve of semitrailer, the left decompression of semitrailer Solenoid valve, semitrailer solenoid valve, tractor rear axle solenoid valve, tractor front axle solenoid valve, the right pressure transmitter of tractor front axle, The right pressure transmitter of tractor rear axle, the right pressure transmitter of semitrailer, the left pressure transmitter of semitrailer, the left pressure of tractor rear axle Transmitter, the left pressure transmitter of tractor front axle and the right braking simulation mechanism of tractor front axle, the right braking mould of tractor rear axle Intend the right braking simulation mechanism of mechanism, semitrailer, the left braking simulation mechanism of semitrailer, the left braking simulation mechanism of tractor rear axle with leading The output terminal for drawing the JHBM pressure sensors carried on the left braking simulation mechanism of Chinese herbaceous peony axis uses data connection；

Mechanical part described in technical solution includes active brake executable portion, detection part, the original braking of semitrailer System and test bed framework part.The active brake executable portion includes pressurize solenoid valve, vacuum solenoid valve, semitrailer electricity Magnet valve, tractor rear axle solenoid valve and tractor front axle solenoid valve；The pressurize solenoid valve includes the right pressurize of tractor front axle The left pressurize solenoid valve of solenoid valve, tractor front axle, the right pressurize solenoid valve of tractor rear axle, the left pressurize solenoid valve of tractor rear axle, The right pressurize solenoid valve of semitrailer and the left pressurize solenoid valve of semitrailer；The vacuum solenoid valve includes the right decompression electricity of tractor front axle Magnet valve, the left vacuum solenoid valve of tractor front axle, the right vacuum solenoid valve of tractor rear axle, the left vacuum solenoid valve of tractor rear axle, half The right vacuum solenoid valve of trailer and the left vacuum solenoid valve of semitrailer；The detection part includes pressure transmitter and braking analog machine The JHBM pressure sensors carried on structure；The pressure transmitter includes the right pressure transmitter of tractor front axle, tractor The right pressure transmitter of rear axle, the right pressure transmitter of semitrailer, the left pressure transmitter of semitrailer, the left pressure transmitter of tractor rear axle With the left pressure transmitter of tractor front axle；The JHBM pressure sensors include the right braking simulation mechanism of tractor front axle, lead It is left to draw the right braking simulation mechanism of vehicle rear axle, the right braking simulation mechanism of semitrailer, the left braking simulation mechanism of semitrailer, tractor rear axle Braking simulation mechanism and the JHBM pressure sensors carried on the left braking simulation mechanism of tractor front axle.The semitrailer is former There is braking system to include abs valve, braking simulation mechanism, air brake valve, trailer valve, emergency relay valve, semitrailer air accumulator, traction Air accumulator and tractor front axle relay valve before air accumulator, tractor rear axle relay valve, tractor after vehicle；The abs valve includes The right abs valve of tractor front axle, the right abs valve of tractor rear axle, the right ABS valves of semitrailer, the left abs valve of semitrailer, tractor rear axle are left Abs valve and the left abs valve of tractor front axle；The braking simulation mechanism includes the right braking simulation mechanism of tractor front axle, traction The right braking simulation mechanism of vehicle rear axle, the right braking simulation mechanism of semitrailer, the left braking simulation mechanism of semitrailer, the left system of tractor rear axle Dynamic simulation mechanism and the left braking simulation mechanism of tractor front axle.

Before import and tractor of the right pressurize solenoid valve of the tractor front axle with the left pressurize solenoid valve of tractor front axle The outlet of axis relay valve is connected using pipeline, and the right pressurize solenoid valve of tractor front axle goes out with the left pressurize solenoid valve of tractor front axle Mouth and the right abs valve of tractor front axle are connected with the input interface of the left abs valve of tractor front axle using pipeline, and tractor front axle is right Abs valve and the right braking simulation mechanism of output interface and tractor front axle of the left abs valve of tractor front axle and the left system of tractor front axle Dynamic simulation mechanism is connected using pipeline, and the right pressure transmitter of tractor front axle respectively and is led with the left pressure transmitter of tractor front axle Draw the right braking simulation mechanism of Chinese herbaceous peony axis to be connected using pipeline with the left braking simulation mechanism of tractor front axle, the right decompression of tractor front axle The outlet connection air of solenoid valve, import are connected between the right pressurize solenoid valve of tractor front axle and the right abs valve of tractor front axle Pipeline on, the outlet of the left vacuum solenoid valve of tractor front axle connection air, the import of the left vacuum solenoid valve of tractor front axle connects It is connected on the pipeline between the left pressurize solenoid valve of tractor front axle and the left abs valve of tractor front axle.

After import and tractor of the right pressurize solenoid valve of the tractor rear axle with the left pressurize solenoid valve of tractor rear axle The outlet of axis relay valve is connected using pipeline, and the right pressurize solenoid valve of tractor rear axle goes out with the left pressurize solenoid valve of tractor rear axle Mouth and the right abs valve of tractor rear axle are connected with the input interface of the left abs valve of tractor rear axle using pipeline, and tractor rear axle is right Abs valve and the right braking simulation mechanism of output interface and tractor rear axle of the left abs valve of tractor rear axle and the left system of tractor rear axle Dynamic simulation mechanism is connected using pipeline, and the right pressure transmitter of tractor rear axle respectively and is led with the left pressure transmitter of tractor rear axle Draw the right braking simulation mechanism of vehicle rear axle to be connected using pipeline with the left braking simulation mechanism of tractor rear axle, the right decompression of tractor rear axle The outlet connection air of solenoid valve, the import of the right vacuum solenoid valve of tractor rear axle are connected to the right pressurize solenoid valve of tractor rear axle On pipeline between the right abs valve of tractor rear axle, the outlet of the left vacuum solenoid valve of tractor rear axle connection air, after tractor The import of the left vacuum solenoid valve of axis is connected to the pipeline between the left pressurize solenoid valve of tractor rear axle and the left abs valve of tractor rear axle On；The right pressurize solenoid valve of the semitrailer is adopted with the import of the left pressurize solenoid valve of semitrailer and the output interface of emergency relay valve It is connected with pipeline, outlet and semitrailer right abs valve and semi-mounted of the right pressurize solenoid valve of semitrailer with the left pressurize solenoid valve of semitrailer The input interface of the left abs valve of vehicle is connected using pipeline, the output interface of the right abs valve of semitrailer and the left abs valve of semitrailer respectively and The right braking simulation mechanism of semitrailer is connected with the left braking simulation mechanism of semitrailer using pipeline, the right pressure transmitter of semitrailer and half The left pressure transmitter of trailer is connected respectively with the right braking simulation mechanism of semitrailer with the left braking simulation mechanism of semitrailer using pipeline, The outlet connection air of the right vacuum solenoid valve of semitrailer, the import of the right vacuum solenoid valve of semitrailer are connected to the right pressurize electricity of semitrailer On pipeline between magnet valve and the right abs valve of semitrailer, the outlet connection air of the left vacuum solenoid valve of semitrailer, the left decompression of semitrailer The import of solenoid valve is connected on the pipeline between the left pressurize solenoid valve of semitrailer and the left abs valve of semitrailer；The tractor The output interface of front axle solenoid valve is connected on No. 1 triple valve of the control interface for leading to No. 1 relay valve, tractor front axle electricity Two input interfaces of magnet valve are connected to the output interface of air accumulator and air brake valve；The tractor rear axle solenoid valve Output interface be connected on No. 2 triple valves for leading to No. 2 relay valve control interfaces, two of tractor rear axle solenoid valve inputs Interface is connected to the output interface of air accumulator and air brake valve after tractor；The output interface of the semitrailer solenoid valve It is connected on the control interface of emergency relay valve, two input interfaces of semitrailer solenoid valve are connected to semitrailer air accumulator With on the output interface of trailer valve；Control section, active brake executable portion, detection part and the original braking of semitrailer System be mounted on test bed framework part on on the ground of test bed framework beneath portions.

The original braking system of trailer described in technical solution further include air compressor, drier, four-loop protection valve, No. 1 triple valve, parking valve, No. 2 triple valves, hand control valve, No. 3 triple valves (48) and brake treadle mechanism；The air compression The output interface of machine and the input interface of drier are connected using pneumatic circuit, the output interface and four-loop protection valve of drier Input interface connected using pneumatic circuit, first output interface of four-loop protection valve and tractor front axle air accumulator pipeline Connection, second output interface of four-loop protection valve are connected with air accumulator pipeline after tractor, and the 3rd of four-loop protection valve the A output interface is connected with No. 1 triple valve pipeline, the another two interface of No. 1 triple valve respectively with semitrailer air accumulator and trailer 11 mouthfuls of pipelines connection of valve, two input interfaces of air brake valve respectively with air accumulator after air accumulator before tractor and tractor Pipeline connects, and two output interfaces of air brake valve connect respectively with tractor front axle solenoid valve and tractor rear axle electromagnetic valve pipeline It connects, the port of trailer valve and the inflation port pipeline of emergency relay valve connect, and the output interface of trailer valve passes through semitrailer electricity Magnet valve is connected with emergency relay valve control port pipeline, and the input interface of trailer valve is connected with No. 3 triple valve pipelines, trailer valve Another input interface is connected with No. 2 triple valve pipelines, and the 3rd input interface of trailer valve is connected with hand control valve pipeline, urgent servo The input interface of valve and the inflation output interface pipeline of trailer valve connect, control interface and the semitrailer solenoid valve of emergency relay valve Pipeline connects, and the air accumulator interface of emergency relay valve is connected with semitrailer air accumulator pipeline, an output of semitrailer air accumulator Interface is connected with electromagnetic valve pipeline, and the input interface of semitrailer air accumulator is connected to by No. 1 triple valve on four-loop protection valve, Air accumulator pipeline connects after the input interface and tractor of parking valve, and the control interface of parking valve is connected with hand control valve pipeline, stays The right braking simulation mechanism of another output interface and tractor rear axle of vehicle valve and the left braking simulation mechanism pipeline of tractor rear axle Connection, 3 interfaces of No. 2 triple valves respectively with tractor rear axle solenoid valve, the control interface and extension of tractor rear axle relay valve The control interface pipeline of vehicle valve connects, and air accumulator pipeline connects after the input interface and tractor of tractor rear axle relay valve, leads The input interface for drawing Chinese herbaceous peony air accumulator is connected with four-loop protection valve pipeline, and the output interface of air accumulator respectively and is led before tractor The input for drawing the input interface of Chinese herbaceous peony axis relay valve, the input interface of air brake valve, tractor front axle solenoid valve and hand control valve connects Mouth pipeline connection, brake treadle mechanism, which is fixed by bolts, to be connected on test bed framework part, pushing away on brake treadle mechanism Bar is inserted into the top of air brake valve.

Test bed framework part described in technical solution includes No. 1 relay valve fixed plate, No. 2 relay valve fixed plates, hangs Vehicle valve fixed plate, emergency relay valve fixed plate, drier fixed plate, the test bed framework mobile wheel identical with 6 structures；Institute The test bed framework stated is double rectangular frame structural members, is made of a high frame and a short frame, No. 2 relay valves are consolidated Fixed board is bolted to the back-end location of left side top longeron in high frame, and No. 1 relay valve fixed plate is mounted on short frame The centre position of middle right side middle level longeron, it is horizontal that trailer valve fixed plate is mounted on the top of left side top longeron and front side in high frame At the square position that beam is formed, emergency relay valve fixed plate is mounted in high frame at the top longeron back-end location on right side, is done Dry device fixed plate is mounted in short frame on the bottom face of the top crossbeam of rear end, and brake treadle mechanism is mounted on test bed framework In short frame two No. 3 columns front end face on, parking valve is mounted on the rear end face of the top crossbeam of rear end in short frame Right side, the identical mobile wheel of 6 structures are mounted on the bottom face of 3 foundation end floor beams, 2 shiftings of installation on every foundation end floor beam Motor car wheel, and in the both ends per foundation end floor beam.

Test bed framework described in technical solution is the double rectangular frame structural members of staged, and test bed framework includes No. 3 identical columns of No. 2 identical columns of No. 1 column, 2 root architectures that have 4 root architectures identical, 2 root architectures, 14 root architecture phases With longeron, the identical crossbeam of 10 root architectures and 13 are used for as supporting plane placing computer and the floor stringer of other equipment；4 The height of No. 1 identical column of root architecture is more than the height of No. 2 identical columns of 2 root architectures, passes through interior hexagonal between each beam, column Screw and the right-angle connector mating with section bar are attached；Wherein：Include 4 roots and tops crossbeams, 3 middle levels in 10 crossbeams Crossbeam and 3 low side crossbeams, 4 roots and tops crossbeams, 3 middle level crossbeams are identical with 3 foundation end floor beam structures；14 longerons include There are 4 roots and tops longerons and 10 middle level longerons；13 floor stringers are identical with 10 beam structures, 10 crossbeams, 14 longerons, 2 No. 2 columns of root, 2 No. 3 columns and 13 floor stringers are all made of the section bar of iso-cross-section；

Described 2 No. 2 columns, 4 No. 1 columns are vertically placed on the ground, 2 No. 2 columns be located at 4 No. 1 it is vertical The one side of column, the line of centres of 4 No. 1 columns are the line of centres of a rectangle, 2 No. 2 columns and 2 adjacent No. 1 columns For a rectangle, 2 roots and tops crossbeams are transversely-placed between 4 No. 1 column tops, 2 roots and tops crossbeams and 4 No. 1 columns it Between vertical connection, another 2 roots and tops crossbeam it is transversely-placed 2 No. 2 column tops with and adjacent 2 No. 1 of 2 No. 2 columns Between column, vertical connection between another 2 roots and tops crossbeam and 2 No. 2 columns and 2 No. 1 columns, this 2 roots and tops crossbeam is in In one horizontal plane, 3 middle level crossbeams are transversely-placed in 2 No. 2 columns, 4 No. 1 column middles, 3 foundation end floor beams It is transversely-placed in the bottom of 2 No. 2 columns, 4 No. 1 columns, 4 roots and tops crossbeams, 3 middle level crossbeams and 3 low side crossbeams Between be mutually parallel；2 roots and tops longerons are placed on along longitudinal direction between 4 No. 1 column tops, and 2 roots and tops longerons and 4 No. 1 are vertical Vertical connection between column, 2 roots and tops longerons and 2 roots and tops crossbeams being arranged along the horizontal are in a horizontal plane, another 2 tops End longeron is placed on along longitudinal direction between 2 No. 2 column tops and adjacent 2 No. 1 columns, another 2 roots and tops longeron and 2 No. 2 Vertical connection between column and 2 No. 1 columns, this 2 roots and tops longeron and 2 roots and tops crossbeams being arranged along the horizontal are in one In horizontal plane；4 middle level longerons are longitudinally located at the middle of 4 No. 1 columns, and 4 middle level longerons are with being arranged along the horizontal 2 middle level crossbeams be in horizontal plane, 6 middle level longerons are longitudinally located at 2 No. 2 columns and adjacent 21 Between number column, 6 middle level longerons and 2 middle level crossbeams are in a horizontal plane, 4 roots and tops longerons and 10 middle levels It is mutually parallel between longeron；2 No. 3 columns are disposed in middle level crossbeam and bottom on the left of test bed framework in parallel to each other Between crossbeam, 2 No. 3 columns and middle level crossbeam and bottom beam vertical, and be in 2 No. 2 columns in a vertical plane； 13 floor stringers are uniformly distributed between 2 No. 2 columns and 2 roots and tops longerons of 2 No. 1 column connections, 13 auxiliary Beam is mutually parallel, and is in a water perpendicular to 2 roots and tops longerons, 13 floor stringers and 2 roots and tops longerons and 2 roots and tops crossbeams In average face.

The right braking simulation mechanism of tractor front axle described in technical solution, the right braking simulation mechanism of tractor rear axle, half The right braking simulation mechanism of trailer, the left braking simulation mechanism of semitrailer, the left braking simulation mechanism of tractor rear axle and tractor front axle Left braking simulation mechanism structure is identical；It is identical that the left braking simulation mechanism of the semitrailer includes brake chamber, 2 root architectures No. 1 identical floor of M20 bolts, 2 structures, spring push-plate, spring, spring stop, M16 guide blots, stent, JHBM pressure Sensor No. 2 floors identical with 2 structures；The identical M20 bolts of 2 root architectures are fixedly mounted on branch using nut Left support siding by brake chamber in 1 pair of light through hole of right support siding upper end, a left side in the bracket is fixed using bolt in frame On the left surface for supporting siding, spring push-plate and spring stop are mounted between left support siding and right support siding, and spring pushes away Disk is located at the right side of left support siding, and spring stop is located at the left side of right support siding, the left end and brake chamber of spring push-plate On push rod be threadedly coupled, and using M16 hex nuts 26-5 that the two is standby tight, spring stop is mounted on and is arranged in right branch up and down It supports on the M16 guide blots on siding, to be slidably matched between the targeting part of spring stop and 2 M16 guide blots, bullet JHBM pressure sensors are installed, JHBM pressure sensors are fixed on the right side using 3 bolts between spring baffle and right support siding It supports in the blind hole on siding, the left side of JHBM pressure sensors and the right side of spring stop connect, a left side for spring End is mounted in the circular ring shape spring groove on spring push-plate, and the right end of spring is mounted on the circular ring shape spring groove on spring stop Interior, spring push-plate, spring and spring stop are followed successively by contact connectio, push rod through hole, brake chamber, spring on left support siding Push-plate, spring, spring stop, JHBM pressure sensors and the rotation conllinear of the blind hole on right support siding.

Stent described in technical solution includes No. 1 identical rib of bottom plate, left support siding, right support siding, 2 structures Plate No. 2 floors identical with 2 structures；Wherein：No. 1 floor is identical with No. 2 rib structures；The left support siding and right branch Siding is supportted as the identical rectangular flat structural member of appearance and size, left support siding and a long edge position of right support siding are set respectively There is 1 pair of light through hole of installation M20 bolts, 1 pair of light through hole on left support siding and 1 pair of light through hole pair on right support siding Just, the line at 1 pair of light through hole center on 1 pair of light through hole on left support siding and right support siding is respectively and left support siding It is parallel with the long side of right support siding；The left support siding 1 installs brake chamber there are one being set to the lower section of light through hole The push rod through hole of middle push rod is equably provided with the bolts hole of 3 installation brake chambers around push rod through hole；The right branch It supports siding 1 to set the lower section of light through hole there are one the blind hole of installation JHBM pressure sensors, equably be set in the bottom hole of blind hole The bolt hole of fixed JHBM pressure sensors is equipped with, the top of the blind hole of fixed JHBM pressure sensors is symmetrically arranged with lower section There is the bolt hole of installation M16 guide blots；The bottom plate is the slab construction part of rectangle, right along longitudinal direction on the bottom plate of rectangle Line is claimed to be symmetrically provided with the identical bottom hole for bottom plate installation of 6 structures, wherein 2 bottom holes are indulged positioned at bottom plate Left and right ends on line of symmetry, 4 bottom holes are symmetrically located at the front and rear sides of the longitudinally asymmetric line of bottom plate, 2 per side The line of the bottom hole centre of gyration is parallel with the long side of the bottom plate of rectangle；No. 1 identical floor of 2 structures and 2 No. 2 identical rib structures of structure are identical, and No. 1 floor and No. 2 floors are all the plate structure part of right angled triangle, pass through welding Mode fix in the bracket on the left of left support siding with plate upper surface and right support siding right flank and plate upper surface it Between；The left support siding is vertically installed at lateral symmetry on bottom plate with right support siding along the longitudinal direction of bottom plate, i.e., left Support siding and the lateral symmetry face of right support siding and the longitudinally asymmetric face of bottom plate coplanar, left support siding and right support siding The long side end for being provided with 1 pair of light through hole of installation M20 bolts is in upper end, another long side of left support siding and right support siding It is fixedly connected between end and bottom plate using welding manner, the push rod through hole of push rod in the installation brake chamber on left support siding The rotation conllinear of blind hole of axis of rotation and the installation JHBM pressure sensors on right support siding is simultaneously parallel with bottom plate；2 No. 1 identical floor of a structure is symmetrically mounted between left support siding left surface and plate upper surface, and uses welding side Formula makes two right-angle sides of No. 1 identical floor of 2 structures fix company with left support siding left surface and plate upper surface respectively It connects, No. 2 identical floors of 2 structures No. 1 floor identical with 2 structures is symmetrically mounted at right support siding right flank and bottom Between plate upper surface, and using welding manner make two right-angle sides of No. 2 identical floors of 2 structures respectively with right support siding Right flank is fixedly connected with plate upper surface.

Spring push-plate described in technical solution is made of round estrade, big cylinder and small cylinder, round estrade, big cylinder Body is connected successively from left to right with small cylinder, and the larger diameter end of round estrade is connected and two with one end of big cylinder The diameter of person is equal, and the other end of big cylinder is connected with one end of small cylinder, round estrade, big cylinder and small column The rotation conllinear of body；The right end of small cylinder is set along axis there are one blind hole, and the diameter of small cylinder is less than spring Internal diameter, the right end of the big cylinder around small cylinder are provided with the spring-loaded circular ring shape spring groove of peace；In spring push-plate Round estrade left end be provided on axis of rotation for in brake chamber push rod be threadedly coupled tapped blind hole.

Spring stop described in technical solution is made of baffle small cylinder with disk, the right end of baffle small cylinder with The left end of disk is connected, the rotation conllinear of baffle small cylinder and disk, and the left end of baffle small cylinder is along axis Direction is set there are one blind hole, the rotation conllinear of blind hole axis of rotation and baffle small cylinder, baffle small cylinder it is straight Footpath is less than the internal diameter of spring, and the left end for the disk being connected with baffle small cylinder is provided with the spring-loaded circular ring shape spring of peace Slot is provided with to install the tapped through hole of M16 guide blots at disk upper and lower side.

The beneficial effects of the utility model are compared with prior art：

1. the testing stand described in the utility model towards commercial semitrailer active emergency braking system can pass through The associative simulation of dsPACE/simulink carries out solenoid valve accurate control so as to which entire testing stand be controlled to carry out active brake work( Can, while testing stand is to be with the addition of solenoid valve on the basis of original Pneumatic braking system, so, testing stand can also meet half The braking function of the original braking system of trailer.

2. the testing stand described in the utility model towards commercial semitrailer active emergency braking system can be to semitrailer The sluggishness when brake force that is generated when brake chamber pressure during braking, braking, braking measures, and can really reflect Braking distance, braking deceleration and braking sluggishness of the semitrailer when being braked.

3. the brake that the testing stand described in the utility model towards commercial semitrailer active emergency braking system uses Simulation mechanism is simple in structure, and cost is relatively low, not only can be cost-effective and can be with after traditional drum brake is substituted Brake force during to braking measures.

4. the testing stand described in the utility model towards commercial semitrailer active emergency braking system is on host computer Can be by Dspace and Trucksim/Simulink associative simulations, it can intuitively table by the emulation module of Trucksim Whether the braking effect of semitrailer when now braking, active brake process and operator brake process generate collision, and whether braking may be used It leans on.

5. due to this experimental bench carry out be active emergency braking system (AEB) l-G simulation test, so even if actively tight The control module of anxious braking system, which is not sufficiently stable, to generate harm to real vehicle.

Description of the drawings

The utility model will be further described below with reference to the accompanying drawings：

Fig. 1 shows for the test platform structure principle described in the utility model towards commercial semitrailer active emergency braking system Meaning block diagram；

Fig. 2 is mechanical part in the testing stand described in the utility model towards commercial semitrailer active emergency braking system Structural principle schematic block diagram；

Fig. 3 is that the test platform structure described in the utility model towards commercial semitrailer active emergency braking system forms Axonometric projection view；

Fig. 4 is used in the testing stand described in the utility model towards commercial semitrailer active emergency braking system The front view of the left braking simulation mechanism structure composition of semitrailer；

Fig. 5 is used in the testing stand described in the utility model towards commercial semitrailer active emergency braking system The top view of the left braking simulation mechanism structure composition of semitrailer；

Fig. 6 is used in the testing stand described in the utility model towards commercial semitrailer active emergency braking system The left view of the left braking simulation mechanism structure composition of semitrailer；

Fig. 7 is used in the testing stand described in the utility model towards commercial semitrailer active emergency braking system The front view that supporting structure forms in the left braking simulation mechanism of semitrailer；

Fig. 8 is used in the testing stand described in the utility model towards commercial semitrailer active emergency braking system The top view that supporting structure forms in the left braking simulation mechanism of semitrailer；

Fig. 9 is used in the testing stand described in the utility model towards commercial semitrailer active emergency braking system The front view of spring push-plate structure composition in the left braking simulation mechanism of semitrailer；

Figure 10 is used in the testing stand described in the utility model towards commercial semitrailer active emergency braking system Semitrailer it is left braking simulation mechanism in spring baffle arrangement form front view；

Figure 11 is used in the testing stand described in the utility model towards commercial semitrailer active emergency braking system Test bed framework structure composition axonometric projection view；

Figure 12 is used in the testing stand described in the utility model towards commercial semitrailer active emergency braking system No. 1 relay valve fixed plate and No. 2 relay valve fixed plate structures composition axonometric projection view；

Figure 13 is used in the testing stand described in the utility model towards commercial semitrailer active emergency braking system Trailer valve fixed plate structure composition axonometric projection view；

Figure 14 is used in the testing stand described in the utility model towards commercial semitrailer active emergency braking system Emergency relay valve fixed plate structure composition axonometric projection view；

Figure 15 is used in the testing stand described in the utility model towards commercial semitrailer active emergency braking system Drier fixed plate structure composition axonometric projection view；

In figure：1. air compressor, the right pressurize solenoid valve of 2. tractor front axles, the 3. right vacuum solenoid valves of tractor front axle, 4. the right abs valve of tractor front axle, the right braking simulation mechanism of 5. tractor front axles, the 6. right pressure transmitters of tractor front axle, 7. is dry Dry device, 8. four-loop protection valves, 9. air brake valves, No. 10.1 triple valves, the right pressurize solenoid valve of 11. tractor rear axles, 12. lead Draw the right vacuum solenoid valve of vehicle rear axle, the 13. right abs valves of tractor rear axle, the right braking simulation mechanism of 14. tractor rear axles, 15. lead Draw the right pressure transmitter of vehicle rear axle, 16. trailer valves, 17. semitrailer solenoid valves, 18. emergency relay valves, the right ABS of 19. semitrailers Valve, the right braking simulation mechanism of 20. semitrailers, the right pressure transmitter of 21. semitrailers, the right vacuum solenoid valve of 22. semitrailers, 23. half The right pressurize solenoid valve of trailer, the left vacuum solenoid valve of 24. semitrailers, the left pressure transmitter of 25. semitrailers, the left braking of 26. semitrailers Simulation mechanism, 26-1. brake chambers, 26-2.M20 bolts, 26-3. floors, 26-4.M16 spring washers, 26-5.M16 hexagonal spiral shells Mother, 26-6. spring push-plates, 26-7. springs, 26-8. spring stops, 26-9.M16 guide blots, 26-10.M20 spring washers, 26-11.M20 hex nuts, 26-12. stents, 26-13.JHBM pressure sensors, 26-14.M4 soket head cap screws, 26-15. Floor, the left abs valve of 27. semitrailers, the left pressurize solenoid valve of 28. semitrailers, 29. semitrailer air accumulators, 30. parking valves, 31. tractions The left pressure transmitter of vehicle rear axle, the 32. left vacuum solenoid valves of tractor rear axle, the left pressurize solenoid valve of 33. tractor rear axles, 34. lead Draw air accumulator after vehicle, No. 35.2 triple valves, 36. tractor rear axle solenoid valves, 37. tractor rear axle relay valves, 38. tractors The left abs valve of rear axle, the left braking simulation mechanism of 39. tractor rear axles, air accumulator before 40. tractors, the 41. left guarantors of tractor front axle Pressure electromagnetic valve, the 42. left vacuum solenoid valves of tractor front axle, the 43. left pressure transmitters of tractor front axle, 44. tractor front axles are left Braking simulation mechanism, the 45. left abs valves of tractor front axle, 46. hand control valves, 47. tractor front axle relay valves, No. 48.3 triple valves, 49. tractor front axle solenoid valve, 50. processor boards, 51. interface panels, 52. wire connection terminals, 53. host computers, 54. displays Device, 55. brake treadle mechanisms, No. 56.1 relay valve fixed plates, No. 57.2 relay valve fixed plates, 58. trailer valve fixed plates, 59. Emergency relay valve fixed plate, 60. drier fixed plates, 61. test bed frameworks, 61-1.1 columns, 61-2.2 columns, 61- No. 3.3 columns, 61-4. longerons, 61-5. crossbeams, 61-6. floor stringers, 62. mobile wheels.

Specific embodiment

The utility model is explained in detail below in conjunction with the accompanying drawings：

Testing stand described in the utility model towards commercial semitrailer active emergency braking system include control section and Mechanical part.

The control section includes processor board 50, interface panel 51, wire connection terminal 52, host computer 53 with showing Show device 54.

It is attached between the processor board 50 of the model DS1103 and host computer 53 by general cable, The processor board 50 of model DS1103 is attached by producer with sets of data lines with interface panel 51 simultaneously.Its master It is that the control information that host computer generates is converted into and can be controlled to the signal that solenoid valve controls, and by these to want function Signal is sent to interface panel 51, continues to transmit to the back-end by these information by interface panel 51, while by sensor (including leading It is left to draw the right pressure transmitter 6 of Chinese herbaceous peony axis, the right pressure transmitter 15 of tractor rear axle, the right pressure transmitter 21 of semitrailer, semitrailer The left pressure transmitter 31 of pressure transmitter 25, tractor rear axle, the left pressure transmitter 43 of tractor front axle and tractor front axle Right braking simulation mechanism 5, the right braking simulation mechanism 14 of tractor rear axle, the right braking simulation mechanism 20 of semitrailer, the left system of semitrailer It is carried on the left braking simulation mechanism 39 of dynamic simulation mechanism 26, tractor rear axle, the left braking simulation mechanism 44 of tractor front axle JHBM pressure sensors) signal passes to host computer 53 and handled；

The interface panel 51 of the model CLP1103 is attached with processor board 50 by data cable, simultaneously The interface panel 51 of model CLP1103 is attached using data cable and the wire connection terminal at rear 52.Its function is by type Number the wire connection terminal 52 at rear is passed to for the control information that sends over of processor board 50 of DS1103, after boosting Pass to rear each solenoid valve (including the right pressurize solenoid valve 2 of tractor front axle, the left pressurize solenoid valve 41 of tractor front axle, The right pressurize solenoid valve 11 of tractor rear axle, the left pressurize solenoid valve 33 of tractor rear axle, the right pressurize solenoid valve 23 of semitrailer, semitrailer The right vacuum solenoid valve 3 of left pressurize solenoid valve 28, tractor front axle, the left vacuum solenoid valve 42 of tractor front axle, tractor rear axle are right The left vacuum solenoid valve 32 of vacuum solenoid valve 12, tractor rear axle, the right vacuum solenoid valve 22 of semitrailer, the left vacuum solenoid valve of semitrailer 24th), the signal while by each sensor generated passes to the processor board 50 of the model DS1103 in front.

One side of the wire connection terminal 52 of the model UKK5 is connected to the model in front by data cable The interface panel 51 of CLP1103, another side be connected to by data cable each solenoid valve at rear, each pressure transmitter and Each braking simulation mechanism is (including the right braking simulation mechanism 5 of tractor front axle, the right braking simulation mechanism 14 of tractor rear axle, half The right braking simulation mechanism 20 of trailer, the left braking simulation mechanism 26 of semitrailer, the left braking simulation mechanism 39 of tractor rear axle and traction Chinese herbaceous peony axis it is left braking simulation mechanism 44) in pressure sensor.Its main function is will be from interface panel 51 and each electricity The signal of magnet valve, each pressure transmitter and each pressure sensor is transmitted, and carries out corresponding boost operations, makes to connect The signal that mouth panel 51 generates can control each solenoid valve in entire testing stand.

Interface panel 51 is connected respectively to the 1-26 interfaces of the one side of wire connection terminal 52 using dedicated data line, in terminals The outgoing position corresponding with 1-26 interfaces of the opposite side of son 52, which passes sequentially through, is wired to the right pressurize electromagnetism of tractor front axle The left pressurize solenoid valve 41 of valve 2, tractor front axle, the right pressurize solenoid valve 11 of tractor rear axle, the left pressurize solenoid valve of tractor rear axle 33rd, before the right pressurize solenoid valve 23 of semitrailer, the left pressurize solenoid valve 28 of semitrailer, the right vacuum solenoid valve 3 of tractor front axle, tractor The left vacuum solenoid valve 42 of axis, the right vacuum solenoid valve 12 of tractor rear axle, the left vacuum solenoid valve 32 of tractor rear axle, the semitrailer right side subtract The left vacuum solenoid valve 24 of pressure electromagnetic valve 22, semitrailer, semitrailer solenoid valve 17, tractor rear axle solenoid valve 36 and tractor front axle The right pressure transmitter 6 of solenoid valve 49, tractor front axle, the right pressure transmitter 15 of tractor rear axle, the right pressure transmitter of semitrailer 21st, the left pressure transmitter 25 of semitrailer, the left pressure transmitter 31 of tractor rear axle, the left pressure transmitter 43 of tractor front axle and The right braking simulation mechanism 14 of right braking simulation mechanism 5, the tractor rear axle of tractor front axle, the right braking simulation mechanism 20 of semitrailer, The left braking simulation mechanism 26 of semitrailer, the left braking simulation mechanism 39 of tractor rear axle and the left braking simulation mechanism 44 of tractor front axle On the output terminal of JHBM pressure sensors 26-13 that is carried；

The host computer 53 is equipped with MATlab/simulink, Trucksim, Controldesk software, computer master It is attached between machine 53 and display 54 by HDMI wire, while host computer 53 is carried out by cable and processor board 50 Connection.Host 53 it is main it is public be the model for establishing commercial semitrailer, simulation test operating mode sends out each solenoid valve at rear The signal for going out corresponding control signal and coming to each sensor passes is handled.

The 54 normal domestic use display of display, main function is intuitively to show the analog result of experiment, Beneficial to observation.

The mechanical part includes active brake executable portion, detection part, the original braking system of semitrailer and experiment Table frame part

The active brake executable portion includes pressurize solenoid valve, vacuum solenoid valve, semitrailer solenoid valve 17, tractor Rear axle solenoid valve 36 and tractor front axle solenoid valve 49；

Wherein：Pressurize solenoid valve include the right pressurize solenoid valve 2 of tractor front axle, the left pressurize solenoid valve 41 of tractor front axle, The right pressurize solenoid valve 11 of tractor rear axle, the left pressurize solenoid valve 33 of tractor rear axle, the right pressurize solenoid valve 23 of semitrailer and semi-mounted The left pressurize solenoid valve 28 of vehicle；Vacuum solenoid valve includes the right vacuum solenoid valve 3 of tractor front axle, the left vacuum solenoid valve of tractor front axle 42nd, the right vacuum solenoid valve 12 of tractor rear axle, the left vacuum solenoid valve 32 of tractor rear axle, the right vacuum solenoid valve 22 of semitrailer and half The left vacuum solenoid valve 24 of trailer；

The model VP342-5DZ1-01A of pressurize solenoid valve and vacuum solenoid valve, they are all two 4 three-way electromagnetic valves.It is right For pressurize solenoid valve, their effect is when the pressure in the brake chamber braked in simulation mechanism reaches a certain level It closes, so as to ensure the braking pressure of brake chamber.They are not when being controlled, in normally open, pressurize electricity The import of magnet valve and the outlet of pressurize solenoid valve are unicom, are free to from the compressed air come of import through pressurize electricity Magnet valve flows to the outlet of pressurize solenoid valve, they import connection be relay valve and emergency relay valve output interface, pressurize What the outlet of solenoid valve connected is the entrance of abs valve.For vacuum solenoid valve, their effect is when releasing braking effect It is when releasing braking, can rapidly discharges the pressure in brake chamber.They are in the normally closed stage, the compression come from import Air cannot be freely by vacuum solenoid valve, and the outlet connection of vacuum solenoid valve is air, and import is connected to pressurize electromagnetism Pipeline between valve and abs valve.

The model of the tractor front axle solenoid valve 49, tractor rear axle solenoid valve 36 and semitrailer solenoid valve 17 is 35A-ACA-DEAD-1BA, their effect are to control the flow direction of compressed gas, allow the stream for changing gas circuit during generation crisis Always active emergency braking is realized.They are two position four-way solenoid valves, are powered and without being in two kinds of unicom effects during control. The output interface of tractor front axle solenoid valve 49 is connected to No. 3 triple valves of the control interface for leading to tractor front axle relay valve 47 On 48, two input interfaces are connected to the output interface of air accumulator 40 and air brake valve 9；Tractor rear axle solenoid valve 36 Output interface, which is connected to, to lead on No. 2 triple valves 35 of 37 control interface of tractor rear axle relay valve, its input interface difference It is connected to the output interface of air accumulator 34 and air brake valve 9 after tractor；The output interface of semitrailer solenoid valve 17 is connected to tightly On the control interface of anxious relay valve 18, its input interface is connected to the output of semitrailer air accumulator 29 and trailer valve 16 On interface.

The detection part includes pressure transmitter；The pressure transmitter includes the right pressure inverting of tractor front axle The right pressure transmitter 15 of device 6, tractor rear axle, the right pressure transmitter 21 of semitrailer, the left pressure transmitter 25 of semitrailer, tractor The left pressure transmitter 31 of rear axle, the left pressure transmitter 43 of tractor front axle.

The right pressure of the right pressure transmitter 6 of the tractor front axle, the right pressure transmitter 15 of tractor rear axle, semitrailer becomes Send the left pressure transmitter 25 of device 21, semitrailer, the left pressure transmitter 31 of tractor rear axle and the left pressure transmitter of tractor front axle 43 structures are identical, and all using the pressure transmitter of model BST6600-05B, their main function is measurement braking analog machine The pressure in brake chamber in structure simultaneously calculates pressure signal transmission to host computer 53.They are connected to 6 On the brake chamber for braking simulation mechanism.

The original braking system of the semitrailer includes air compressor 1, abs valve, braking simulation mechanism, drier 7, four Loop protection valve 8, air brake valve 9, No. 1 triple valves 10, trailer valve 16, emergency relay valve 18, semitrailer air accumulator 29, parkings Air accumulator 40, hand control valve before 34, No. 2 triple valves 35 of air accumulator, tractor rear axle relay valve 37, tractor after valve 30, tractor 46th, 47, No. 3 triple valves 48 of tractor front axle relay valve and brake treadle mechanism 55；

The model WW20010 of the air compressor 1, it only there are one output interface, its main function be for Entire brake tester provides compressed air, after air compressor 1 is connected power supply, by output interface and various valve body interfaces It is connected with pneumatic circuit；

The abs valve includes the right abs valve 4 of tractor front axle, the right abs valve 13 of tractor rear axle, the right abs valve of semitrailer 19th, the left abs valve 27 of semitrailer, the left abs valve 38 of tractor rear axle and the left abs valve 45 of tractor front axle, the right ABS of tractor front axle The right abs valve 13 of valve 4, tractor rear axle, the right abs valve 19 of semitrailer, the left abs valve 27 of semitrailer, the left abs valve 38 of tractor rear axle 45 structure of abs valve left with tractor front axle is identical, and model is all BC-CG-2012, and the main function of abs valve is to prevent automobile Locking occurs during braking, only there are two interface, an input interface and an output interface, input interface connections for he To 2 relay valves and the output terminal of emergency relay valve, the output interface of abs valve is connected by pipeline with braking simulation mechanism.

The braking simulation mechanism includes the right braking simulation of the right braking simulation mechanism 5 of tractor front axle, tractor rear axle The right braking simulation mechanism 20 of mechanism 14, semitrailer, the left braking simulation mechanism 26 of semitrailer, the left braking simulation mechanism of tractor rear axle 39 with tractor front axle it is left braking simulation mechanism 44；The right braking simulation of the right braking simulation mechanism 5 of tractor front axle, tractor rear axle The right braking simulation mechanism 20 of mechanism 14, semitrailer, the left braking simulation mechanism 26 of semitrailer, the left braking simulation mechanism of tractor rear axle 39 is identical with left braking 44 structure of simulation mechanism of tractor front axle；The main function for braking simulation mechanism is simulating brake device Braking effect, due to semitrailer used by real brake it is heavier and price is higher, so this experimental bench uses semi-mounted The right braking simulation mechanism 20 of vehicle, the left braking simulation mechanism 26 of semitrailer carry out simulating brake effect.

Refering to Fig. 4, the left braking simulation mechanism 26 of the semitrailer includes the identical M20 of brake chamber 26-1,2 root architectures Bolt 26-2, No. 1 floor 26-3, M16 spring washer 26-4, M16 hex nut 26-5, spring push-plate 26-6, spring 26-7, bullet Spring baffle 26-8, M16 guide blot 26-9, M20 spring washer 26-10, M20 hex nut 26-11, stent 26-12, JHBM Pressure sensor 26-13, M4 soket head cap screw 26-14, No. 2 floor 26-15.

The stent 26-12 be semitrailer it is left braking simulation mechanism 26 basic part, the left braking simulation mechanism of semitrailer 26 other parts are all directly or indirectly mounted on stent 26-12, and stent 26-12 includes bottom plate, left support siding, the right side No. 2 identical with 2 structures No. 1 identical floor 26-3 of support siding, 2 structures floor 26-15；Wherein：No. 1 floor 26-3 It is identical with No. 2 floor 26-15 structures.

The left support siding and right support siding are the identical rectangular flat structural member of structure size, left support siding It is respectively arranged with 1 pair of light through hole of installation M20 bolts 26-2 with a long edge position of right support siding, 1 couple on left support siding 1 pair of light through hole on light through hole and right support siding is to just, 1 pair of light through hole on left support siding and 1 on right support siding To the line at light through hole center respectively and left support siding is parallel with the long side of right support siding.

There are one the push rods for installing push rod in brake chamber 26-1 for lower section setting of the left support siding 1 to light through hole Through hole is equably provided with the bolts hole of 3 installation brake chamber 26-1 around push rod through hole.

The right support siding 1 installs the blind of JHBM pressure sensors 26-13 there are one being set to the lower section of light through hole Hole is equably provided with the bolt hole of fixed JHBM pressure sensors 26-13, fixed JHBM pressure sensors in the bottom hole of blind hole The bolt hole of installation M16 guide blots 26-9 is symmetrically provided with above the bolt hole of 26-13 with lower section.

The bottom plate is the slab construction part of rectangle, and the plane of symmetry is symmetrically provided with 6 along longitudinal direction on the bottom plate of rectangle The identical bottom hole for bottom plate installation of structure, wherein 2 bottom holes are located at the left and right two on the longitudinally asymmetric line of bottom plate End, 4 bottom holes are symmetrically located at the front and rear sides of the longitudinally asymmetric line of bottom plate, 2 bottom hole centres of gyration per side Line is parallel with the long side of the bottom plate of rectangle.

No. 1 identical floor 26-3 of 2 structures and 2 structures it is identical No. 2 floor 26-15 structures it is identical, No. 1 Floor 26-3 and No. 2 floor 26-15 is all the plate structure part of right angled triangle, is fixed on stent 26- by welding In 12 on the left of left support siding between plate upper surface and right support siding right flank and plate upper surface, mainly to entirely propping up Frame 26-12 is reinforced；

The left support siding is vertically installed at lateral symmetry on bottom plate with right support siding along the longitudinal direction of bottom plate, That is left support siding and the lateral symmetry face of right support siding and the longitudinally asymmetric face of bottom plate is coplanar, left support siding and right support Siding is provided with one (long side) end of 1 pair of light through hole of installation M20 bolts 26-2 in upper end, left support siding and right support wall It is fixedly connected between another (long side) end of plate and bottom plate using welding manner, (left side) side for right support siding is provided with installation The blind hole of JHBM pressure sensors 26-13, the blind hole of installation JHBM pressure sensors 26-13 are located at the 1 of installation M20 bolts 26-2 To the lower section of light through hole, the axis of rotation of the push rod through hole of push rod and right branch in the installation brake chamber 26-1 on left support siding The rotation conllinear of the blind hole of installation JHBM pressure sensors 26-13 on support siding is simultaneously parallel with bottom plate；2 structure phases No. 1 same floor 26-3 is symmetrically mounted between left support siding left surface and plate upper surface, and makes 2 using welding manner Two right-angle side faces of No. 1 identical floor 26-3 of a structure are fixed respectively with left support siding left surface and plate upper surface to be connected It connects, No. 1 identical with 2 structures No. 2 identical floor 26-15 of 2 structures floor 26-3 is symmetrically mounted at right support siding Between right side and bottom plate, and using welding manner make two right-angle side faces of No. 2 identical floor 26-15 of 2 structures respectively and Right support siding right flank is fixedly connected with plate upper surface.

The M20 bolts 26-2 is elongated class straight rod member, and its one end is provided with the external screw thread with nut cooperation, is mounted on Left support siding and the M20 bolts 26-2 of right support siding upper end mainly play reinforcement effect to stent 26-12 in stent 26-12.

The spring push-plate 26-6 is made of round estrade, big cylinder and small cylinder, round estrade, big cylinder with it is small Cylinder is connected successively from left to right, the larger diameter end of round estrade be connected with one end of big cylinder and both it is straight Footpath is equal, and the other end of big cylinder is connected with one end of small cylinder, time of round estrade, big cylinder and small cylinder Shaft axis are conllinear；The right end of small cylinder is set along axis there are one blind hole, and the diameter of small cylinder is less than the interior of spring 26-7 Footpath, the right end of the big cylinder around small cylinder are provided with the circular ring shape spring groove of installation spring 26-7；Spring push-plate (small) end in a left side of round estrade in 26-6 is provided with what is be threadedly coupled with push rod in brake chamber 26-1 on axis of rotation Tapped blind hole.

The spring stop 26-8 is made of baffle small cylinder with disk, the right end of baffle small cylinder and disk Left end is connected, and the rotation conllinear of baffle small cylinder and disk, the left end of baffle small cylinder is set in the axial direction It puts there are one blind hole, the rotation conllinear of blind hole axis of rotation and baffle small cylinder, the diameter of baffle small cylinder is less than The internal diameter of spring 26-7 is provided with the circular ring shape bullet of installation spring 26-7 in the left end for the disk being connected with baffle small cylinder Spring slot is provided with to install the bolt hole of M16 guide blots 26-9 at disk upper and lower side；

The brake chamber 26-1 models 3530015-490/C；Brake chamber 26-1 main functions are simulating brakes The effect of brake chamber when device is braked, the pressure of the pressure conversion of gas into push rod is exported；

Into the fixation of row position, its master between the spring 26-7 installations spring push-plate 26-6 and spring stop 26-8 Acting on brake drum when being simulating brake, to the braking counter-force of brake-shoe, prevents the thrust that brake chamber generates from not having corresponding power It is offset with it；

The identical M20 bolts 26-2 of 2 root architectures is fixedly mounted on left support siding and right branch in stent 26-12 using nut In 1 pair of light through hole for supportting siding upper end, the main function of the identical M20 bolts 26-2 of 2 root architectures is reinforced liner 26-12, is adopted Brake chamber 26-1 is fixed in stent 26-12 on the left surface of left support siding with bolt, spring push-plate 26-6 and spring Baffle 26-8 is mounted in stent 26-12 between left support siding and right support siding, and spring push-plate 26-6 is located at left support wall The right side of plate, spring stop 26-8 are located at the left side of right support siding, the left end of spring push-plate 26-6 on brake chamber 26-1 Push rod be threadedly coupled, and using M16 hex nuts 26-5 that the two is standby tight, spring stop 26-8 is mounted on and is arranged in branch up and down On M16 guide blots 26-9 in frame 26-12 on right support siding, spring stop 26-8 can be in 2 M16 guide blots 26- It horizontally slips on 9 targeting part, JHBM pressure biography is installed in spring stop 26-8 and stent 26-12 between right support siding The main function of sensor 26-13, JHBM pressure sensor 26-13 is the pressure that detection spring baffle 26-8 is generated, and will detection To pressure signal outflow brake force is estimated, JHBM pressure sensors 26-13 is fixed on right support wall using 3 bolts In blind hole on plate, the left side of JHBM pressure sensors 26-13 is connected with the right side of spring stop 26-8, spring The left end of 26-7 is mounted in the circular ring shape spring groove on spring push-plate 26-6, and the right end of spring 26-7 is mounted on spring stop In circular ring shape spring groove on 26-8, spring push-plate 26-6, spring 26-7 and spring stop 26-8 are followed successively by contact connectio, bullet Spring 26-7 is compressed and upholds between spring push-plate 26-6 and spring stop 26-8；Push rod through hole on left support siding, Brake chamber 26-1, spring push-plate 26-6, spring 26-7, spring stop 26-8, JHBM pressure sensor 26-13 and right support wall The rotation conllinear of blind hole on plate.

When having compressed air from brake chamber 26-1 into fashionable, the compressed air in brake chamber 26-1 will promote right side Push rod move to the right, the right end of push rod is threadedly secured on spring push plate 26-6 so that on push rod power effect Onto the spring 26-7 on right side.Meanwhile spring 26-7 generates reaction force acts on push rod, by selecting then spring 26-7 Rigidity and stroke, so that it may so that the left braking simulation mechanism 26 of semitrailer generates centainly in the certain impulse strokes of spring 26-7 Pressure, when push rod stroke reaches maximum, by the rigidity and stroke that select spring 26-7, so that it may so that spring at this time Brake-shoe acts on the pressure on brake drum on the true brake of reaction force simulation of 26-7, meanwhile, the work on spring 26-7 Firmly it can also measure according to the pressure sensor 26-13 being mounted on the left braking simulation mechanism 26 of semitrailer and pass to electricity Brain server 53.

The main function of the drier 7 of the model 35110072040 is by the compression from air compressor 1 Air is filtered, and removes moisture therein.Its input interface is connected by pneumatic circuit with the outlet of air compressor 1, The output interface of the drier 7 of model 35110072040 is carried out by the bolt of M8 and the input interface of four-loop protection valve 8 Connection.

The main function of the four-loop protection valve 8 of the model 14081751 is to prevent from being connected to four-loop protection valve Whether the pneumatic circuit of outlet leaks, and closes the interface of that gas circuit immediately when a gas circuit leaks, so as to anti- Only leak entire baric systerm.He by M8 be bolted to drier after, he also has 4 output interfaces, this Secondary testing stand has used its 3 output interfaces altogether.First output of the four-loop protection valve 8 of model 14081751 connects Mouth is connected on tractor front axle air accumulator 40, another output interface of the four-loop protection valve 8 of model 14081751 connects It is connected to after tractor on air accumulator 34, the 3rd output interface of the four-loop protection valve 8 of model 14081751 and No. 1 threeway Valve 10 is connected, and the another two interface of No. 1 triple valve 10 is connected respectively to the input of semitrailer air accumulator 29 and trailer valve 16 Interface.

9 function of air brake valve of the model 351401050A is the pneumatic tube that control is connected to air brake valve outlet Whether road has compressed air output.It one shares 4 interfaces, is respectively 2 input interfaces and 2 output interfaces, two inputs Interface is connected respectively to air accumulator 40 and air accumulator 34 after tractor before tractor, its two output interfaces, which are connected respectively to, to be led Draw on Chinese herbaceous peony axis solenoid valve 49 and tractor rear axle solenoid valve 36.Meanwhile on 9 upper end of air brake valve and brake treadle mechanism 55 Push rod is connected, and push rod is directly inserted into the hole of 9 upper end of air brake valve, and when brake pedal, push rod moves down at this time, Control air brake valve 9 open, so as to which rear be controlled to have compressed air output, under normal circumstances tractor front axle solenoid valve 49 with The state of tractor rear axle solenoid valve 36 is attached to the gas circuit of tractor front axle relay valve 47 and tractor rear axle relay valve 37 It opens, the compressed air exported at this time from air brake valve 9 can control tractor front axle relay valve 47 and tractor rear axle servo Valve 37 is opened.

Three interfaces of No. 1 triple valve 10 of the model 3140010010 are connected respectively to four-loop protection valve 8 Output terminal, the input terminal of semitrailer air accumulator 29 and the input interface of trailer valve 16.

The function of the trailer valve 16 of the model 3502015367 is according to tractor front axle relay valve 47 and traction The state of 37 the two relay valves of vehicle rear axle relay valve controls trailer valve 16 to control the braking of connected semitrailer.It has altogether There are 6 interfaces, be respectively the inflatable end that 11 mouthfuls of port connection 10,12 mouthfuls of output interfaces of No. 1 triple valve connect emergency relay valve 18 Mouthful, 22 mouthfuls of output interfaces connect 18 control port of emergency relay valve, 41 mouthfuls of input interface connections 3 by semitrailer solenoid valve 17 48,42 mouthfuls of input interfaces of number triple valve connect 35,43 mouthfuls of input interfaces connection hand control valves 46 of No. 2 triple valves.

The emergency relay valve 18 1 of the model 35180800010 shares 5 interfaces, and input interface is connected to trailer The inflation output interface of valve 16, control interface are connected on semitrailer solenoid valve 17, and air accumulator interface is connected to semitrailer gas storage On tank 29, two output interfaces are connected on the right pressurize solenoid valve 23 of semitrailer and the left pressurize solenoid valve 28 of semitrailer.

The semitrailer air accumulator 29 1 of the model 3513015-47A/C shares 3 interfaces, an input interface and Two output interfaces, output interface are connected to the air accumulator connecting interface of emergency relay valve 18, another output interface is connected to On solenoid valve 17, input interface is connected to by No. 1 triple valve 10 on four-loop protection valve 8.Its effect is that storage compression is empty Gas, and provide compressed air for emergency relay valve 18.

The parking valve 30 1 of the model 35180070220 shares 4 interfaces, after input interface is connected to tractor On air accumulator 34, control interface is connected on hand control valve 46, and there are two output interfaces, is connected to the right braking of tractor rear axle On simulation mechanism 14 and the left braking simulation mechanism 39 of tractor rear axle.

Air accumulator 34 has used 5 interfaces, input interface altogether after the tractor of the model 3513015-47A/C Be connected on four-loop protection valve 8, output interface be connected to the input interface of air brake protection valve 9, tractor rear axle after On the input interface of dynamic valve 37, the input interface and tractor rear axle solenoid valve 36 of parking valve 30.

3 interfaces of No. 2 triple valves 35 of the model UKK5 are connected to tractor rear axle solenoid valve 36, lead Draw the control interface of vehicle rear axle relay valve 37 and 42 interfaces of trailer valve 16.

The tractor rear axle relay valve 37 1 of the model 35180190020 shares 4 interfaces, input interface connection After tractor on air accumulator 34, control interface is connected on No. 2 triple valves 35, and output interface is connected to tractor rear axle On right pressurize solenoid valve 11 and the left pressurize solenoid valve 33 of tractor rear axle.

Air accumulator 40 has used 5 interfaces, input interface altogether before the tractor of the model 3513015-47A/C It is connected on four-loop protection valve 8, output interface is connected to the input interface of tractor front axle relay valve 47, gas braking Input interface, the input interface of tractor front axle solenoid valve 49 and hand control valve 46 of valve 9.

The tractor front axle relay valve 47 1 of the model 35180190020 shares 4 interfaces, input interface connection Before tractor on air accumulator 40, control interface is connected in No. 3 threeways 48, and 2 output interfaces connect tractor front axle respectively On right pressurize solenoid valve 2 and the left pressurize solenoid valve 41 of tractor front axle.

The hand control valve 46 1 of the model 35260050200 shares 3 interfaces, before input interface is connected to tractor On air accumulator 40, compressed air is provided to hand control valve 46 by air accumulator before tractor 40, output interface 1 is connected to trailer valve 16 Control interface on, output interface 2 is connected on the control interface of parking valve 30.The effect of hand control valve 46 is to realize semitrailer Hand-braking acts on.

Three interfaces of No. 3 triple valves 48 of the model UKK5 be connected to tractor front axle solenoid valve 49, The control interface of tractor front axle relay valve 47 and the first circuit control interface of trailer valve 16.

The brake treadle mechanism 55 is bolted to by M6's in the test bed framework 61 being made of section bar, system The top junction of push rod insertion air brake valve 9 on dynamic pedal gear 55, push rod are indirectly with the diaphragm in air brake valve 9 It touches, when stepping on formulation pedal, push rod moves down, so as to which the diaphragm for controlling air brake valve 9 moves down, so as to control gas The output of the output terminal of brake valve 9.

It is solid that the test bed framework part includes No. 1 relay valve fixed plate 56, No. 2 relay valve fixed plates 57, trailer valves Fixed board 58, emergency relay valve fixed plate 59, drier fixed plate 60, test bed framework 61 mobile wheel identical with 6 structures 62。

The test bed framework 61 is the double rectangular frame structural members of staged, i.e., short by a high frame and one Frame form, test bed framework 61 include No. 2 identical column 61-2 of No. 1 identical column 61-1 of 4 root architectures, 2 root architectures, The identical crossbeam 61-5 of the identical longeron 61-4 of No. 3 identical column 61-3 of 2 root architectures, 14 root architectures, 10 root architectures and 13 It is used for placing computer and the floor stringer 61-6 of other equipment as supporting plane；The height of No. 1 identical column 61-1 of 4 root architectures The height of No. 2 column 61-2 identical more than 2 root architectures, it is mating by soket head cap screw and with section bar between Ge Geliang, column Right-angle connector is attached.Entire frame is divided into 2 layers, and 61 bottom of test bed framework is equipped with mobile wheel 62, can be to whole A testing stand is moved, and intermediate one layer is substantially carried out the placement of air accumulator and the installation of part valve body, one layer of the top It is substantially carried out the placement of the equipment such as host display and the installation of most of valve body.

Wherein：Include 4 roots and tops crossbeams, 3 middle level crossbeams and 3 low sides in the identical crossbeam 61-5 of 10 root architectures Crossbeam, 4 roots and tops crossbeams, 3 middle level crossbeams are identical with 3 foundation end floor beam structures；It is wrapped in the identical longeron 61-4 of 14 root architectures 4 roots and tops longerons and 10 middle level longerons are included；Crossbeam 61- identical with 10 root architectures the identical floor stringer 61-6 of 13 root architectures 5 structures are identical, No. 1 identical column of the identical longeron 61-4 of the identical crossbeam 61-5 of 10 root architectures, 14 root architectures, 4 root architectures No. 3 identical column 61-3 of No. 2 identical column 61-2 of 61-1,2 root architectures, 2 root architectures and the identical floor stringer of 13 root architectures 61-6 is all using made of the section bar of iso-cross-section.

No. 1 identical column 61-1 of No. 2 identical column 61-2 of 2 root architectures, 4 root architectures is placed vertically on the ground, and 2 No. 2 identical column 61-2 of root architecture are located at the front side of No. 1 identical column 61-1 of 4 root architectures (refering to Figure 11, to face to install Before the short frame of floor stringer 61-6 is, high frame is divided into the left and right sides on the basis of rear, then by testing stand), 4 root architectures are identical The line of centres of No. 1 column 61-1 be a rectangle, No. 2 identical column 61-2 of 2 root architectures it is identical with 2 adjacent root architectures 1 The line of centres of number column 61-1 is a rectangle, the transversely-placed No. 1 column 61-1 identical in 4 root architectures of 2 roots and tops crossbeams Between top, vertical connection between the identical top crossbeam of the 2 root architectures No. 1 column 61-1 identical with 4 root architectures, another 2 tops The transversely-placed No. 2 column 61-2 tops identical in 2 root architectures of end floor beam with and the identical No. 2 column 61-2 phases of 2 root architectures Between No. 1 identical column 61-1 of 2 adjacent root architectures, the identical top crossbeam of another 2 root architecture and 2 root architectures identical No. 2 are vertical Vertical connection between No. 1 identical with 2 root architectures column 61-2 column 61-1, this 2 roots and tops crossbeam are in a horizontal plane It is interior, in No. 1 identical column 61-1 of the transversely-placed No. 2 column 61-2 identical in 2 root architectures of 3 middle level crossbeams, 4 root architectures Between, No. 1 identical column 61-1 of the transversely-placed No. 2 column 61-1s identical in 2 root architectures of 3 foundation end floor beams, 4 root architectures Bottom end is mutually parallel between 4 roots and tops crossbeams, 3 middle level crossbeams and 3 low side crossbeams.

2 roots and tops longerons are placed on along longitudinal direction between No. 1 identical column 61-1 top of 4 root architectures, 2 roots and tops longerons with 2 roots and tops crossbeams being arranged along the horizontal are in a horizontal plane, and another 2 roots and tops longeron is placed on 2 root architecture phases along longitudinal direction With No. 2 column 61-2 tops No. 1 column 61-1 identical with 2 adjacent root architectures between, this 2 roots and tops longeron with transversely 2 roots and tops crossbeams of arrangement are in a horizontal plane；It is vertical that 4 middle level longerons are longitudinally located at 4 root architectures identical No. 1 The middle of column 61-1,4 middle level longerons and 2 middle level crossbeams being arranged along the horizontal are in a horizontal plane, in 6 Floor longeron be longitudinally located at No. 2 identical column 61-2 of the 2 root architectures No. 1 column 61-1s identical with 2 adjacent root architectures it Between, 6 middle level longerons and 2 middle level crossbeams are in a horizontal plane.

No. 3 identical column 61-3 of 2 root architectures are arranged in parallel to each other between middle level crossbeam and bottom crossbeam, 2 root knots No. 3 identical column 61-3 of structure and middle level crossbeam and bottom beam vertical, and identical with 2 root architectures No. 2 column 61-2 are in In one vertical plane.

The identical floor stringer of 13 root architectures is uniformly distributed in No. 2 column 61-2s and 2 root architectures identical with 2 root architectures Between 2 roots and tops longerons of No. 1 identical column 61-1 connection, the identical floor stringer of 13 root architectures is mutually parallel, and perpendicular to 2 Roots and tops longeron, the identical floor stringer of 13 root architectures and 2 roots and tops longerons and 2 roots and tops crossbeams are in a horizontal plane.

The identical mobile wheel 62 of 6 structures is mounted on the bottom face of 3 foundation end floor beams, is installed on every foundation end floor beam 2 mobile wheels 62, and in the both ends per foundation end floor beam.

The component being directly bolted in test bed framework 61 has 56, No. 2 relay valves of No. 1 relay valve fixed plate to consolidate Fixed board 57, trailer valve fixed plate 58, emergency relay valve fixed plate 59, drier fixed plate 60, brake treadle mechanism 55 and parking Valve 30.Wherein, No. 2 relay valve fixed plates 57 are bolted in high frame the back-end location of left side top longeron, No. 1 after Dynamic valve fixed plate 56 is mounted on the centre position of right side middle level longeron in short frame, and trailer valve fixed plate 58 is mounted in high frame At the square position that left side top longeron and the top crossbeam of front side are formed, emergency relay valve fixed plate 59 is mounted in high frame At the top longeron back-end location on right side, drier fixed plate 60 is mounted on the bottom face of the top crossbeam of rear end in short frame On, brake treadle mechanism 55 is mounted on the front end face of the frame of (short frame) two No. 3 columns compositions in test bed framework 61 On, parking valve 30 is mounted on the right side (installation position of above-mentioned each fixed plate of the rear end face of the top crossbeam of rear end in short frame Certain adjustment can be carried out in actual installation process by putting).

Refering to Figure 12, described No. 1 relay valve fixed plate 56 and No. 2 relay valve fixed plates 57 are rectangle plate structure part, 1 Be respectively arranged with 5 through holes in number relay valve fixed plate 56 and No. 2 relay valve fixed plates 57,2 through holes using M6 bolts with 3 through holes using M8 bolts are used to use hexagon socket head cap screw by No. 1 relay valve fixed plate 56 and 2 using the through hole of M6 bolts Number relay valve fixed plate 57 is fixed in test bed framework 61, is used for fixed traction Chinese herbaceous peony axis relay valve using the through hole of M8 bolts 47 with tractor rear axle relay valve 37, i.e., tractor front axle relay valve 47 is fixed in No. 1 relay valve fixed plate 56 using bolt, No. 1 relay valve fixed plate 56 is bolted on the centre position of right side middle level longeron in 61 short frame of test bed framework again On；Tractor rear axle relay valve 37 is fixed in No. 2 relay valve fixed plates 57 using bolt, No. 2 relay valve fixed plates 57 are led to again Bolt is crossed to be fixed in 61 high frame of test bed framework on the back-end location of left side top longeron；

Refering to Figure 13, the trailer valve fixed plate 58 is square plate class formation part, is set in trailer valve fixed plate 58 There are 8 through holes, 4 through holes using M6 bolts are used to that trailer valve fixed plate 58 to be fixedly connected on experiment using hexagon socket head cap screw On table frame 61,4 through holes using M8 bolts are used to trailer valve 16 being fixedly connected on trailer valve fixed plate 58, i.e., first It is horizontal that trailer valve fixed plate 58 is bolted on the top of left side top longeron and front side in 61 high frame of test bed framework At the square position that beam is formed, then by bolt trailer valve 16 is fixed in trailer valve fixed plate 58.

Refering to Fig. 6, the emergency relay valve fixed plate 59 is a rectangle plate structure part, and one end of rectangular slab is provided with U-shaped opening is provided with 6 through holes in emergency relay valve fixed plate 59, wherein 2 through holes using M6 bolts for using in Emergency relay valve fixed plate 59 is fixedly connected in test bed framework 61 by hex bolts, this 2 through hole positions using M6 bolts In the other end of rectangular slab, 2 lines of centres using the through holes of M6 bolts are parallel with the narrow side of rectangular slab；Other 4 uses The through hole of M8 bolts is used to emergency relay valve 18 being fixedly connected on emergency relay valve fixed plate 59,4 using M8 bolts Through hole is located at 2 one sides using the through hole of M6 bolts, and is symmetrically arranged at the both sides of U-shaped opening, i.e., first by urgent servo Valve fixed plate 59 is bolted in 61 high frame of test bed framework at the top longeron back-end location on right side, then passes through spiral shell Emergency relay valve 18 is fixed in emergency relay valve fixed plate 59 by bolt.

Refering to Fig. 8, the drier fixed plate 60 be a rectangle plate structure part, one end of drier fixed plate 60 Right-angle side is converted into one side, 2 through holes using M6 bolts are provided on right-angle side, 2 through holes using M6 bolts are used to adopt Drier fixed plate 60 is vertically fixedly connected in test bed framework 61 with hexagon socket head cap screw, with right-angle side vertical connection The lower end of installing plate be provided with 3 through holes using M8 bolts, the line of centres of 3 through holes for using M8 bolts is always Angle triangle, 3 through holes using M8 bolts are connected to drier fixed plate 60 for drier 7 to be fixed by bolts；3 Two groups of through holes are provided with above a through hole using M8 bolts, one of which is the identical small through hole of two structures, and another group is 3 The identical large through-hole of a structure, the main function of this two groups of through holes are the weight for mitigating this plate, reduce the stress of M6 bolts.It will Drier fixed plate 60 is bolted in 61 short frame of test bed framework on the bottom face of the top crossbeam of rear end, then is led to It crosses bolt drier 7 is fixed in drier fixed plate 60.

The four-loop protection valve 8 is connected by screw bolts on drier 7 mating four on corresponding installation and drier The installation site of loop protection valve；

The brake treadle mechanism 55 frame surrounding of itself is provided with the through hole of 4 M6, and brake treadle mechanism 55 is adopted It is connected to the screw of 4 M6 on two shorter No. 3 columns in 61 front end face lower end centre position of test bed framework, braking is stepped on The height of trigger structure 55 can be adjusted to ensure comfort during laboratory technician's brake pedal according to the height of laboratory technician；

The air brake valve 9 is connected by screw bolts on brake treadle mechanism 55, by the position for adjusting air brake valve 9 It puts, the push rod of brake treadle mechanism 55 is made to be inserted into the upper cavity of air brake valve 9；

Air accumulator 40 is directly placed at experiment before air accumulator 34, tractor after the semitrailer air accumulator 29, tractor On the longeron in 61 middle level of table frame.Wherein, semitrailer air accumulator 29 is placed on two middle levels of 61 right half part of test bed framework On longeron, it is stably fixed to by the gravity of itself on two middle level longerons.

6 pressure transmitters are separately mounted to the entry position of the brake chamber of each spring simulation mechanism, lead to Threaded connection above over-pressed power transmitter；

Each pressurize solenoid valve, each vacuum solenoid valve, each reversing solenoid valve, each triple valve and each Abs valve is not suitable for being fixed in test bed framework 61, therefore the installation of above-mentioned device is mainly according to actual peace due to small volume The tendency of pneumatic circuit during dress selects suitable position to be installed；

The braking simulation mechanism is also not suitable for being fixed in test bed framework 61 since quality and volume are larger, because This 6 braking simulation mechanisms are directly placed on the ground below test bed framework 61, the position simulation semi-mounted of 6 simulation mechanisms The position of 6 tires of vehicle, the left front ground being individually positioned in immediately below entire testing stand, right preceding ground, left ground, it is right in Face, left back ground, it is right after ground.

The host computer 53, display 54, processor board 50, interface panel 51 are directly placed at test bed framework (convenience when position of each device is according to actual installation can be certainly on 61 top end face by the floor stringer 61-6 short frames formed Row is adjusted).

The groove that the wire connection terminal 52 is carried by 52 lower end of wire connection terminal is mounted on 61 top layer of test bed framework On that highest root crossbeam of plane centre position (right position can be voluntarily adjusted when mounted).

After the component for needing to be fixed in test bed framework 61 by this fixes, gas will be passed through between all parts Pressure pipe road is attached.Entire pneumatic circuit connection is from air compressor 1 (before air compressor is placed on test bed framework 61 On the ground of side) start, it is connected to by pneumatic circuit on drier 7, drier 7 carries out air pressure by four-loop protection valve 8 Transmission, four-loop protection valve 8 has 3 output interfaces, is connected to air accumulator 40 before tractor, 34 He of air accumulator after tractor No. 1 triple valve, No. 1 triple valve 10 are reconnected on semitrailer air accumulator 29 and trailer valve 16；Air accumulator 40 passes through before tractor Pneumatic circuit is connected to tractor front axle relay valve 47, air brake valve 9, hand control valve 46 and tractor front axle solenoid valve 49, After tractor air accumulator 34 by pneumatic circuit be connected to tractor rear axle relay valve 37, tractor rear axle solenoid valve 36, Parking valve 30, air brake valve 9, semitrailer air accumulator 29 by pneumatic circuit be connected to semitrailer solenoid valve 17, promptly after Dynamic valve 19；9 remaining two interfaces of air brake valve are connected to tractor rear axle solenoid valve 36 and tractor front axle solenoid valve 49；It leads Draw 36 remaining interface of vehicle rear axle solenoid valve and be connected to No. 2 triple valves 35, the connection of 49 remaining interface of tractor front axle solenoid valve In No. 3 triple valves 48；No. 2 35 remaining interfaces of triple valve are connected to 37, No. 3 threeways of trailer valve 16 and tractor rear axle relay valve 48 remaining interface of valve is connected to tractor front axle relay valve 47 and trailer valve 16；37 remaining interface of tractor rear axle relay valve The right pressurize solenoid valve 11 of tractor rear axle and the left pressurize solenoid valve 33 of tractor rear axle are connected to, tractor front axle relay valve 47 is surplus Under interface be connected to the right pressurize solenoid valve 2 of tractor front axle and the left pressurize solenoid valve 41 of tractor front axle；Tractor front axle is right Pressurize solenoid valve 2 is connected to the right vacuum solenoid valve 3 of tractor front axle and the right abs valve 4 of tractor front axle by pneumatic circuit again, leads Draw after the right pressurize solenoid valve 11 of vehicle rear axle is connected to the right vacuum solenoid valve 12 of tractor rear axle and tractor by pneumatic circuit again The right abs valve 13 of axis, the left pressurize solenoid valve 33 of tractor rear axle are connected to the left decompression electromagnetism of tractor rear axle by pneumatic circuit again Valve 32 and the left abs valve 38 of tractor rear axle, the left pressurize solenoid valve 41 of tractor front axle are connected to tractor by pneumatic circuit again The left vacuum solenoid valve 42 of front axle and the left abs valve 45 of tractor front axle；The right abs valve 4 of tractor front axle is connected by pneumatic circuit On the right braking simulation mechanism 5 of tractor front axle, the right abs valve 13 of tractor rear axle is connected to tractor rear axle by pneumatic circuit On right braking simulation mechanism 14, the left abs valve 38 of tractor rear axle is connected to the left braking of tractor rear axle by pneumatic circuit and simulates In mechanism 39, the left abs valve 45 of tractor front axle is connected to by pneumatic circuit on the left braking simulation mechanism 44 of tractor front axle； The right braking simulation mechanism 5 of tractor front axle is attached by screw thread pressure transmitter 6 right with tractor front axle, tractor rear axle Right braking simulation mechanism 14 is attached again by screw thread pressure transmitter 15 right with tractor rear axle, the left braking of tractor rear axle Simulation mechanism is attached by screw thread pressure transmitter 31 left with tractor rear axle, and the left braking simulation mechanism of tractor front axle leads to Screw thread pressure transmitter 43 left with tractor front axle is crossed to be connected；Hand control valve 46 is connected to parking valve 30 and trailer by pneumatic circuit On valve 16；30 remaining two interfaces of parking valve are connected to the right braking simulation mechanism 14 of tractor rear axle and tractor rear axle Left braking simulation mechanism 39；On trailer valve 16 remaining two interface emergency relay valves 18 and semitrailer solenoid valve 17, semitrailer 17 remaining interface of solenoid valve is also connected on emergency relay valve 18；18 remaining two interfaces of emergency relay valve are connected to On the right pressurize solenoid valve 23 of semitrailer and the left pressurize solenoid valve 28 of semitrailer；The right pressurize solenoid valve 23 of semitrailer passes through pneumatic circuit It is connected on the right abs valve 19 of semitrailer and the right vacuum solenoid valve 22 of semitrailer, the left pressurize solenoid valve 28 of semitrailer passes through pneumatic tube Road is connected to the left vacuum solenoid valve 24 of semitrailer and the left abs valve 27 of semitrailer；The right abs valve 19 of semitrailer is connected again by pneumatic circuit It is connected on the right braking simulation mechanism 20 of semitrailer, the left abs valve 27 of semitrailer is connected to the left braking of semitrailer by pneumatic circuit again On simulation mechanism 26；The right braking simulation mechanism 20 of semitrailer is threadedly attached on the right pressure transmitter 21 of semitrailer, semi-mounted The left braking simulation mechanism 26 of vehicle is threadedly attached on the left braking simulation mechanism 25 of semitrailer (the specific valve port connection ginseng of valve body Content is introduced according to above-mentioned each valve body).

The operation principle of testing stand described in the utility model towards commercial semitrailer active emergency braking system：

Operator brake process testing

The atmospheric pressure value in Pneumatic braking system when testing stand can measure driver's brake pedal.Brake pedal machine The push rod connected in structure 55 on brake pedal is directly inserted into 9 top sky of air brake valve by the push rod of brake treadle mechanism 55 Chamber, when brake pedal, push rod will move downward, so as to promote the opening of air brake valve 9, when loosening the brake When, pedal moves upwards under the action of the spring, and push rod moves upwards, so that the valve body of air brake valve 9 is closed.Work as driver During brake pedal in brake pedal mechanism 55, the push rod below brake pedal moves downward, so as to control air brake valve 9 It opens, the output terminal output squeezing air of air brake valve 9, after compressed air is by tractor front axle solenoid valve 49 and tractor Axis solenoid valve 36 flows to No. 3 triple valves 48 and No. 2 triple valves 35, then flows to tractor front axle relay valve 47, tractor respectively 42 interfaces of rear axle relay valve 37,41 interfaces of trailer valve 16 and trailer valve 16 flow to tractor front axle relay valve 47 and traction The compressed air control tractor front axle relay valve 47 of vehicle rear axle relay valve 37 and the output terminal of tractor rear axle relay valve 37 are beaten Open so that from the compressed air that tractor front axle relay valve 47 and tractor rear axle relay valve 37 enter by output interface to Outside by the right pressurize solenoid valve 2 of tractor front axle in pressurize solenoid valve, the right pressurize solenoid valve 11 of tractor rear axle, tractor after It is exported respectively after the left pressurize solenoid valve 33 of axis, the left pressurize solenoid valve 41 of tractor front axle to the right abs valve 4 of tractor front axle, traction The left abs valve 45 of Chinese herbaceous peony axis, the right abs valve 13 of tractor rear axle, the left abs valve 38 of tractor rear axle, abs valve control braking simulation mechanism Generate braking action.This process is equivalent to the braking process of the tractor part of commercial semitrailer.

When 41 interfaces of trailer valve 16 and 42 interfaces have control pressure generation, the output terminal of trailer valve 16 has compressed air Output, so as to which the control interface for controlling the emergency relay valve 18 of rear connection has compressed air generation, so as to control urgent servo The output terminal of valve 18 has compressed air output, so as to pass through the left pressurize solenoid valve 28 of semitrailer and the right pressurize solenoid valve 23 of semitrailer The left abs valve 27 of semitrailer of control rear connection has compressed air entrance with the right abs valve 19 of semitrailer, so as to control the half of rear The left braking simulation mechanism 26 of trailer generates braking action with the right braking simulation mechanism 20 of semitrailer.At this point, the right pressure of tractor front axle The left pressure transmitter 43 of power transmitter 6, tractor front axle, the right pressure transmitter 15 of tractor rear axle, the left pressure of tractor rear axle The right pressure transmitter 21 of transmitter 31, semitrailer measures braking when drawing operator brake with the left pressure transmitter 25 of semitrailer The hysteresis when variation and braking of air pressure, at the same brake the JHBM pressure sensors 26-13 in simulation mechanism can be The pressure size that spring 26-7 is subject to passes to host computer 53.It can be passed through by the size of atmospheric pressure value and the time of braking The deceleration in distance and braking process when host computer 53 is calculated braking.

Active emergency braking process testing

When emergency episode occurs, driver does not operate braking process, and the ECU of automobile can be sent out according to danger at this time Raw state controls the braking system of automobile, and control automobile carries out active brake process.The braking process of testing stand is just It is to simulate this process.During test run is tested, if active emergency braking system is not perfect, it is likely that thing can occur Therefore life and property loss is caused, so carrying out bench run to active emergency braking system.

First, vehicle, position of centre of gravity, the traction matter in semi-mounted vehicle model, truck model are established by Trucksim softwares Amount, tractor type and semi-mounted car data.In Trucksim softwares, in addition to commercial semitrailer will be modeled, also Vehicle in front of instruction carriage is modeled, so at least needing to establish two automobiles during the Experiment Modeling of active brake Model, after the model that commercial car is established in Trucksim, the commercial vehicle model in Trucksim is sent to In simulink softwares, then the control process of commercial car active emergency braking is established using simulink softwares.By In this testing stand not using radar, thus the judgement whether braked for commercial car be according to directly given data and It is not the data using radar surveying.After the distance between two vehicles reach risk distance in Trucksim models, Simulink control commercial car carries out active brake process, so as to fulfill entire active emergency braking process.In simulink After model foundation, the controller established in the Full Vehicle Dynamics model and Matlab/Simulink that are provided by TruckSim RT Model forms Simulation Control Model, and utilizes compiling and the generation of MLIB, DSSimulink and the RTI of dSPACE software systems Code generation, downloads in the processor board 50 of dSPACE, by interface panel 51 and wire connection terminal 52 by processor board 50 Information pass to each actuator hardware and by detecting system generate signal pass to processor board 50.In the mistake of experiment Cheng Zhong, the signal that control system is generated by processor board 50 control the right pressurize solenoid valve 2 of tractor front axle, tractor front axle The right pressurize solenoid valve 11 of right vacuum solenoid valve 3, tractor rear axle, the right vacuum solenoid valve 12 of tractor rear axle, semitrailer solenoid valve 17th, the right vacuum solenoid valve 22 of semitrailer, the right pressurize solenoid valve 23 of semitrailer, the left vacuum solenoid valve 24 of semitrailer, the left guarantor of semitrailer The left vacuum solenoid valve 32 of pressure electromagnetic valve 28, tractor rear axle, the left pressurize solenoid valve 33 of tractor rear axle, tractor rear axle solenoid valve 36th, the left pressurize solenoid valve 41 of tractor front axle, the left vacuum solenoid valve 42 of tractor front axle are opened with tractor front axle solenoid valve 49 It closes.For each pressurize solenoid valve, they when uncontrolled in normally open, so as to ensure from tractor rear axle The compressed air of relay valve 37, tractor front axle relay valve 47 and emergency relay valve 18 be free to be transferred in abs valve, right For vacuum solenoid valve, they when uncontrolled in normally off, to ensure being not in leakage in pneumatic circuit Phenomenon.When control system control semitrailer solenoid valve 17, tractor rear axle solenoid valve 36 and tractor front axle solenoid valve 49 commutate When, each pressurize solenoid valve and each vacuum solenoid valve are in the state of no control signal, pressurize solenoid valve and decompression at this time Solenoid valve still keeps original state, and Pneumatic braking system is just as driver's brake pedal at this time, entire braking system System has brake control pressure, so as to which entire braking system be controlled to generate braking effect.When the pressure of braking system reaches certain journey When spending, the signal measured will be passed to processor board 50 by detecting system at this time, and it is each that processor board 50 carries out job control A pressurize solenoid valve is closed, and so as to keep the pressure in brake chamber, ensures that braking simulation mechanism can ensure to brake shape always State.When danger releases, semitrailer solenoid valve 17, tractor rear axle solenoid valve 36 and tractor front axle solenoid valve 49 commutate, and become Change the state of the i.e. no control signal of state to before causing danger, the pneumatic circuit of braking system becomes to be controlled by driver Pipeline state, at this time each pressurize solenoid valve become the state closed, each vacuum solenoid valve becomes opens state, control The pressure in brake chamber in braking simulation mechanism runs through vacuum solenoid valve and is discharged into air, and rapid release was braked Journey.The right pressure transmitter 6 of tractor front axle, the right pressure transmitter 15 of tractor rear axle, the right pressure transmitter 21 of semitrailer, semi-mounted The left pressure transmitter 25 of vehicle, the left pressure transmitter 31 of tractor rear axle, the left pressure transmitter 43 of tractor front axle are in this process In braking pressure when can measure braking variation and braking when hysteresis, since brake signal is by host computer 53 send, time for being sent by comparing brake signal, each so time that brake signal is sent can also accurately obtain In the time of a solenoid valve unlatching, the time of each solenoid valve closing, the atmospheric pressure value in braking process, each braking simulation mechanism The pressure size of JHBM pressure sensors 26-13 can be to entire active brake process there are one detailed understanding, for braking Distance, reaction time of braking etc. can be there are one detailed calculating.By calculating of the host computer 53 to these numerical value, A detailed evaluation can be carried out to the working effect of entire active emergency braking system.

Claims

1. a kind of testing stand towards commercial semitrailer active emergency braking system, which is characterized in that described towards commercial half The testing stand of trailer active emergency braking system includes control section and mechanical part；

The control section include processor board (50), interface panel (51), wire connection terminal (52), host computer (53) with Display (54)；

It is connected between the host computer (53) and processor board (50) using cable, processor board (50) and interface surface Connected between plate (51) using data cable, the interface panel 1-26 interfaces of interface panel (51) and the one side of wire connection terminal (52) it Between connected using data cable, pressurize solenoid valve, vacuum solenoid valve, semi-mounted in the opposite side and mechanical part of wire connection terminal (52) Vehicle solenoid valve (17), tractor rear axle solenoid valve (36), tractor front axle solenoid valve (49), pressure transmitter and braking analog machine It is connected between JHBM pressure sensors (26-13) in structure using data cable.

2. the testing stand described in accordance with the claim 1 towards commercial semitrailer active emergency braking system, which is characterized in that institute Pressurize solenoid valve, vacuum solenoid valve, semitrailer solenoid valve (17) in the opposite side and mechanical part of the wire connection terminal (52) stated, JHBM pressures in tractor rear axle solenoid valve (36), tractor front axle solenoid valve (49), pressure transmitter and braking simulation mechanism Referred between force snesor (26-13) using data cable connection：

The pressurize solenoid valve include the right pressurize solenoid valve (2) of tractor front axle, the left pressurize solenoid valve (41) of tractor front axle, The right pressurize solenoid valve (11) of tractor rear axle, the left pressurize solenoid valve (33) of tractor rear axle, the right pressurize solenoid valve (23) of semitrailer Pressurize solenoid valve (28) left with semitrailer；

The vacuum solenoid valve include the right vacuum solenoid valve of tractor front axle (3), the left vacuum solenoid valve of tractor front axle (42), The right vacuum solenoid valve of tractor rear axle (12), the left vacuum solenoid valve of tractor rear axle (32), the right vacuum solenoid valve of semitrailer (22) With the left vacuum solenoid valve of semitrailer (24)；

The pressure transmitter include the right pressure transmitter of tractor front axle (6), the right pressure transmitter of tractor rear axle (15), The right pressure transmitter of semitrailer (21), the left pressure transmitter of semitrailer (25), the left pressure transmitter of tractor rear axle (31) are with leading Draw the left pressure transmitter of Chinese herbaceous peony axis (43)；

The braking simulation mechanism includes the right braking simulation mechanism (5) of tractor front axle, the right braking analog machine of tractor rear axle The right braking simulation mechanism (20) of structure (14), semitrailer, the left braking simulation mechanism (26) of semitrailer, the left braking simulation of tractor rear axle Mechanism (39) and the left braking simulation mechanism (44) of tractor front axle；

Corresponded on wire connection terminal (52) with interface panel 1-26 interfaces outgoing position respectively with the right pressurize solenoid valve of tractor front axle (2), the left pressurize solenoid valve (41) of tractor front axle, the right pressurize solenoid valve (11) of tractor rear axle, the left pressurize electricity of tractor rear axle The right pressurize solenoid valve (23) of magnet valve (33), semitrailer, the left pressurize solenoid valve (28) of semitrailer, the right vacuum solenoid valve of tractor front axle (3), the left decompression electricity of the left vacuum solenoid valve of tractor front axle (42), the right vacuum solenoid valve of tractor rear axle (12), tractor rear axle Magnet valve (32), the right vacuum solenoid valve of semitrailer (22), the left vacuum solenoid valve of semitrailer (24), semitrailer solenoid valve (17), traction Vehicle rear axle solenoid valve (36), tractor front axle solenoid valve (49), the right pressure transmitter of tractor front axle (6), tractor rear axle are right Pressure transmitter (15), the right pressure transmitter of semitrailer (21), the left pressure transmitter of semitrailer (25), the left pressure of tractor rear axle After transmitter (31), the left pressure transmitter of tractor front axle (43) and the right braking simulation mechanism (5) of tractor front axle, tractor The right braking simulation mechanism (14) of axis, the right braking simulation mechanism (20) of semitrailer, the left braking simulation mechanism (26) of semitrailer, tractor The left braking simulation mechanism (39) of rear axle and the JHBM pressure sensors carried on the left braking simulation mechanism (44) of tractor front axle The output terminal of (26-13) uses data connection.

3. the testing stand described in accordance with the claim 1 towards commercial semitrailer active emergency braking system, which is characterized in that institute The mechanical part stated includes active brake executable portion, detection part, the original braking system of semitrailer and test bed framework part；

After the active brake executable portion includes pressurize solenoid valve, vacuum solenoid valve, semitrailer solenoid valve (17), tractor Axis solenoid valve (36) and tractor front axle solenoid valve (49)；

The detection part includes pressure transmitter and brakes the JHBM pressure sensors carried on simulation mechanism；Described Pressure transmitter includes the right pressure transmitter of tractor front axle (6), the right pressure transmitter of tractor rear axle (15), the right pressure of semitrailer Power transmitter (21), the left pressure transmitter of semitrailer (25), the left pressure transmitter of tractor rear axle (31) and tractor front axle are left Pressure transmitter (43)；The JHBM pressure sensors include the right braking simulation mechanism (5) of tractor front axle, tractor rear axle After right braking simulation mechanism (14), the right braking simulation mechanism (20) of semitrailer, the left braking simulation mechanism (26) of semitrailer, tractor The left braking simulation mechanism (39) of axis and the JHBM pressure sensors carried on the left braking simulation mechanism (44) of tractor front axle (26-13)；

The original braking system of the semitrailer includes abs valve, braking simulation mechanism, air brake valve (9), trailer valve (16), tight Air accumulator (34), tractor rear axle relay valve (37), tractor after anxious relay valve (18), semitrailer air accumulator (29), tractor Preceding air accumulator (40) and tractor front axle relay valve (47)；

The abs valve includes the right abs valve of tractor front axle (4), the right abs valve of tractor rear axle (13), the right abs valve of semitrailer (19), the left abs valve of semitrailer (27), the left abs valve of tractor rear axle (38) and the left abs valve of tractor front axle (45)；

Import and tractor of the right pressurize solenoid valve (2) of the tractor front axle with the left pressurize solenoid valve (41) of tractor front axle The outlet of front axle relay valve (47) is connected using pipeline, the right pressurize solenoid valve (2) of tractor front axle and the left pressurize of tractor front axle The input interface of the outlet of solenoid valve (41) and the right abs valve of tractor front axle (4) and the left abs valve of tractor front axle (45), which uses, manages Road connects, the right abs valve of tractor front axle (4) and the output interface of the left abs valve of tractor front axle (45) and the right system of tractor front axle Dynamic simulation mechanism (5) is connected with the left braking simulation mechanism (44) of tractor front axle using pipeline, the right pressure inverting of tractor front axle Device (6) and the left pressure transmitter of tractor front axle (43) respectively with the right braking simulation mechanism (5) of tractor front axle with before tractor The left braking simulation mechanism (44) of axis is connected using pipeline, the outlet connection air of the right vacuum solenoid valve of tractor front axle (3), import It is connected on the pipeline between the right pressurize solenoid valve (2) of tractor front axle and the right abs valve of tractor front axle (4), tractor front axle The outlet connection air of left vacuum solenoid valve (42), before the import of the left vacuum solenoid valve of tractor front axle (42) is connected to tractor On pipeline between the left pressurize solenoid valve (41) of axis and the left abs valve of tractor front axle (45)；

The import and traction of the right pressurize solenoid valve (11) of the tractor rear axle and the left pressurize solenoid valve (33) of tractor rear axle The outlet of vehicle rear axle relay valve (37) is connected using pipeline, the right pressurize solenoid valve (11) of tractor rear axle and the left guarantor of tractor rear axle The outlet of pressure electromagnetic valve (33) and the right abs valve of tractor rear axle (13) and the input interface of the left abs valve of tractor rear axle (38) are adopted It is connected with pipeline, the right abs valve of tractor rear axle (13) and the output interface of the left abs valve of tractor rear axle (38) and tractor rear axle Right braking simulation mechanism (14) is connected with the left braking simulation mechanism (39) of tractor rear axle using pipeline, the right pressure of tractor rear axle Transmitter (15) is with the left pressure transmitter of tractor rear axle (31) respectively with the right braking simulation mechanism (14) of tractor rear axle with leading Draw the left braking simulation mechanism (39) of vehicle rear axle to connect using pipeline, the outlet connection of the right vacuum solenoid valve of tractor rear axle (12) is big Gas, the import of the right vacuum solenoid valve of tractor rear axle (12) be connected to the right pressurize solenoid valve (11) of tractor rear axle with after tractor On pipeline between the right abs valve of axis (13), the outlet connection air of the left vacuum solenoid valve of tractor rear axle (32), tractor rear axle The import of left vacuum solenoid valve (32) is connected to the left pressurize solenoid valve (33) of tractor rear axle and the left abs valve of tractor rear axle (38) Between pipeline on；

Import and emergency relay valve of the right pressurize solenoid valve (23) of the semitrailer with the left pressurize solenoid valve (28) of semitrailer (18) output interface is connected using pipeline, and the right pressurize solenoid valve (23) of semitrailer goes out with semitrailer left pressurize solenoid valve (28) Mouth and the right abs valve of semitrailer (19) are connected with the input interface of the left abs valve of semitrailer (27) using pipeline, the right abs valve of semitrailer (19) with the output interface of the left abs valve of semitrailer (27) respectively with semitrailer it is right braking simulation mechanism (20) with the left braking of semitrailer Simulation mechanism (26) is connected using pipeline, the right pressure transmitter of semitrailer (21) and the left pressure transmitter of semitrailer (25) respectively and The right braking simulation mechanism (20) of semitrailer is connected with the left braking simulation mechanism (26) of semitrailer using pipeline, the right decompression electricity of semitrailer The outlet connection air of magnet valve (22), the import of the right vacuum solenoid valve of semitrailer (22) are connected to the right pressurize solenoid valve of semitrailer (23) on the pipeline between the right abs valve of semitrailer (19), the outlet connection air of the left vacuum solenoid valve of semitrailer (24), semi-mounted The import of the left vacuum solenoid valve of vehicle (24) is connected between the left pressurize solenoid valve (28) of semitrailer and the left abs valve of semitrailer (27) On pipeline；

The output interface of the tractor front axle solenoid valve (49) is connected to the control for leading to tractor front axle relay valve (47) On No. 3 triple valves (48) of interface, two input interfaces of tractor front axle solenoid valve (49) are connected to air accumulator (40) With the output interface of air brake valve (9)；

The output interface of the tractor rear axle solenoid valve (36) be connected to lead to tractor rear axle relay valve (37) control connect On No. 2 triple valves (35) of mouth, two input interfaces of tractor rear axle solenoid valve (36) are connected to gas storage after tractor The output interface of tank (34) and air brake valve (9)；

The output interface of the semitrailer solenoid valve (17) is connected on the control interface of emergency relay valve (18), semitrailer electricity Two input interfaces of magnet valve (17) are connected on the output interface of semitrailer air accumulator (29) and trailer valve (16)；

Control section, active brake executable portion, detection part and the original braking system of semitrailer is mounted on testing stand On frame part on the ground of test bed framework beneath portions.

4. the testing stand described in accordance with the claim 3 towards commercial semitrailer active emergency braking system, which is characterized in that institute The original braking system of trailer stated further includes air compressor (1), drier (7), four-loop protection valve (8), No. 1 triple valve (10), parking valve (30), No. 2 triple valves (35), hand control valve (46), No. 3 triple valves (48) and brake treadle mechanism (55)；

The output interface of the air compressor (1) is connected with the input interface of drier (7) using pneumatic circuit, drier (7) output interface is connected with the input interface of four-loop protection valve (8) using pneumatic circuit, and the of four-loop protection valve (8) One output interface is connected with tractor front axle air accumulator (40) pipeline, second output interface of four-loop protection valve (8) with Air accumulator (34) pipeline connects after tractor, the 3rd output interface of four-loop protection valve (8) and No. 1 triple valve (10) pipeline Connection, the another two interface of No. 1 triple valve (10) connect respectively with 11 mouthfuls of pipelines of semitrailer air accumulator (29) and trailer valve (16) Connect, two input interfaces of air brake valve (9) respectively with air accumulator (34) pipeline after air accumulator before tractor (40) and tractor Connection, two output interfaces of air brake valve (9) respectively with tractor front axle solenoid valve (49) and tractor rear axle solenoid valve (36) pipeline connects, and the port of trailer valve (16) is connected with the inflation port pipeline of emergency relay valve (18), trailer valve (16) Output interface be connected by semitrailer solenoid valve (17) with emergency relay valve (18) control port pipeline, trailer valve (16) it is defeated Incoming interface is connected with No. 3 triple valve (48) pipelines, and another input interface of trailer valve (16) and No. 2 triple valve (35) pipelines connect It connects, the 3rd input interface of trailer valve (16) is connected with hand control valve (46) pipeline, the input interface and trailer of emergency relay valve (18) The inflation output interface pipeline connection of valve (16), control interface and semitrailer solenoid valve (17) pipeline of emergency relay valve (18) connect It connecing, the air accumulator interface of emergency relay valve (18) is connected with semitrailer air accumulator (29) pipeline, and the one of semitrailer air accumulator (29) A output interface is connected with solenoid valve (17) pipeline, and the input interface of semitrailer air accumulator (29) is connected by No. 1 triple valve (10) It is connected on four-loop protection valve (8), air accumulator (34) pipeline connects after the input interface and tractor of parking valve (30), parking valve (30) control interface is connected with hand control valve (46) pipeline, another output interface of parking valve (30) and the right system of tractor rear axle Dynamic simulation mechanism (14) is connected with left braking simulation mechanism (39) pipeline of tractor rear axle, 3 interfaces point of No. 2 triple valves (35) Other and tractor rear axle solenoid valve (36), the control interface of tractor rear axle relay valve (37) and trailer valve (16) control interface Pipeline connects, and air accumulator (34) pipeline connects after the input interface and tractor of tractor rear axle relay valve (37), before tractor The input interface of air accumulator (40) is connected with four-loop protection valve (8) pipeline, the output interface of air accumulator (40) point before tractor Other and the input interface of tractor front axle relay valve (47), the input interface of air brake valve (9), tractor front axle solenoid valve (49) It is connected with the input interface pipeline of hand control valve (46), brake treadle mechanism (55), which is fixed by bolts, is connected to test bed framework portion On point, the top of the push rod insertion air brake valve (9) on brake treadle mechanism (55).

5. the testing stand described in accordance with the claim 3 towards commercial semitrailer active emergency braking system, which is characterized in that institute The test bed framework part stated includes No. 1 relay valve fixed plate (56), No. 2 relay valve fixed plates (57), trailer valve fixed plates (58), emergency relay valve fixed plate (59), drier fixed plate (60), test bed framework (61) movement identical with 6 structures Wheel (62)；

The test bed framework (61) is double rectangular frame structural members, is made of a high frame and a short frame, 2 Number relay valve fixed plate (57) is bolted to the back-end location of left side top longeron in high frame, and No. 1 relay valve is fixed Plate (56) is mounted on the centre position of right side middle level longeron in short frame, and trailer valve fixed plate (58) is mounted on left side in high frame At the square position that top longeron and the top crossbeam of front side are formed, emergency relay valve fixed plate (59) is mounted on right in high frame At the top longeron back-end location of side, drier fixed plate (60) is mounted on the bottom face of the top crossbeam of rear end in short frame On, brake treadle mechanism (55) is mounted in test bed framework (61) on the front end face of two No. 3 columns (61-3) of short frame, Parking valve (30) is mounted on the right side of the rear end face of the top crossbeam of rear end in short frame, the identical mobile wheel of 6 structures (62) on the bottom face of 3 foundation end floor beams, 2 mobile wheels (62) are installed on every foundation end floor beam, and in every The both ends of bottom crossbeam.

6. according to the testing stand towards commercial semitrailer active emergency braking system described in claim 5, which is characterized in that institute The test bed framework (61) stated is the double rectangular frame structural members of staged, and test bed framework (61) includes 4 root architecture phases With No. 1 column, the identical longeron of identical No. 3 columns of identical No. 2 columns of 2 root architectures, 2 root architectures, 14 root architectures, 10 The identical crossbeam of structure and 13 are used for placing computer and the floor stringer of other equipment as supporting plane；4 root architectures it is identical 1 The height of number column is more than the height of No. 2 identical columns of 2 root architectures, passes through soket head cap screw and and section bar between each beam, column Mating right-angle connector is attached；

Wherein：Include 4 roots and tops crossbeams, 3 middle level crossbeams and 3 low side crossbeams in 10 crossbeams, 4 roots and tops crossbeams, 3 Middle level crossbeam is identical with 3 foundation end floor beam structures；Include 4 roots and tops longerons and 10 middle level longerons in 14 longerons；13 Floor stringer is identical with 10 beam structures, 10 crossbeams, 14 longerons, 2 No. 2 columns, 2 No. 3 columns and 13 floor stringers All it is made of the section bar of iso-cross-section；

Described 2 No. 2 columns, 4 No. 1 columns are vertically placed on the ground, and 2 No. 2 columns are located at 4 No. 1 columns One side, the lines of centres of 4 No. 1 columns are a rectangle, and the line of centres of 2 No. 2 columns and 2 adjacent No. 1 columns is one Rectangle, 2 roots and tops crossbeams are transversely-placed between 4 No. 1 column tops, hang down between 2 roots and tops crossbeams and 4 No. 1 columns It is direct-connected to connect, another 2 roots and tops crossbeam it is transversely-placed 2 No. 2 column tops with and adjacent 2 No. 1 columns of 2 No. 2 columns Between, vertical connection between another 2 roots and tops crossbeam and 2 No. 2 columns and 2 No. 1 columns, this 2 roots and tops crossbeam is in one In horizontal plane, 3 middle level crossbeams are transversely-placed in 2 No. 2 columns, 4 No. 1 column middles, 3 foundation end floor beams edge horizontal stroke To the bottom for being placed on 2 No. 2 columns, 4 No. 1 columns, between 4 roots and tops crossbeams, 3 middle level crossbeams and 3 low side crossbeams It is mutually parallel；

2 roots and tops longerons are placed on along longitudinal direction between 4 No. 1 column tops, vertical between 2 roots and tops longerons and 4 No. 1 columns Connection, 2 roots and tops longerons and 2 roots and tops crossbeams being arranged along the horizontal are in a horizontal plane, and another 2 roots and tops longeron edge is vertical To being placed between 2 No. 2 column tops and adjacent 2 No. 1 columns, another 2 roots and tops longeron and 2 No. 2 columns and 21 Vertical connection between number column, this 2 roots and tops longeron and 2 roots and tops crossbeams being arranged along the horizontal are in a horizontal plane；4 Root middle level longeron is longitudinally located at the middle of 4 No. 1 columns, 4 middle level longerons and 2 middle level crossbeams being arranged along the horizontal In a horizontal plane, 6 middle level longerons are longitudinally located between 2 No. 2 columns and adjacent 2 No. 1 columns, and 6 Root middle level longeron and 2 middle level crossbeams are in a horizontal plane, mutually flat between 4 roots and tops longerons and 10 middle level longerons Row；

2 No. 3 columns are disposed in parallel to each other between the middle level crossbeam on the left of test bed framework (61) and bottom crossbeam, 2 No. 3 columns and middle level crossbeam and bottom beam vertical, and be in 2 No. 2 columns in a vertical plane；

13 floor stringers are uniformly distributed between 2 No. 2 columns and 2 roots and tops longerons of 2 No. 1 column connections, 13 Floor stringer is mutually parallel, and is in one perpendicular to 2 roots and tops longerons, 13 floor stringers and 2 roots and tops longerons and 2 roots and tops crossbeams In a horizontal plane.

7. the testing stand described in accordance with the claim 3 towards commercial semitrailer active emergency braking system, which is characterized in that institute The right braking simulation mechanism (5) of the tractor front axle stated, the right braking simulation mechanism (14) of tractor rear axle, the right braking simulation of semitrailer The left braking simulation mechanism (26) of mechanism (20), semitrailer, the left braking simulation mechanism (39) of tractor rear axle and tractor front axle are left It is identical to brake simulation mechanism (44) structure；

The left braking simulation mechanism (26) of the semitrailer includes the identical M20 bolts (26- of brake chamber (26-1), 2 root architectures 2), No. 1 identical floor (26-3) of 2 structures, spring push-plate (26-6), spring (26-7), spring stop (26-8), M16 are led No. 2 floors (26-15) identical with 2 structures to bolt (26-9), stent (26-12), JHBM pressure sensors (26-13)；

The identical M20 bolts (26-2) of 2 root architectures are fixedly mounted on left support siding in stent (26-12) using nut With in 1 pair of light through hole of right support siding upper end, brake chamber (26-1) is fixed on left branch in stent (26-12) using bolt On the left surface for supportting siding, spring push-plate (26-6) and spring stop (26-8) be mounted on left support siding and right support siding it Between, spring push-plate (26-6) is located at the right side of left support siding, and spring stop (26-8) is located at the left side of right support siding, spring The left end of push-plate (26-6) is threadedly coupled with the push rod on brake chamber (26-1), and uses M16 hex nuts 26-5 by the two Standby tight, spring stop (26-8) is mounted on and is arranged in up and down on the M16 guide blots (26-9) on right support siding, spring stop To be slidably matched between (26-8) and the targeting part of 2 M16 guide blots (26-9), spring stop (26-8) and right support wall JHBM pressure sensors (26-13) are installed, JHBM pressure sensors (26-13) are fixed on right branch using 3 bolts between plate It supports in the blind hole on siding, the left side of JHBM pressure sensors (26-13) contacts company with the right side of spring stop (26-8) It connects, the left end of spring (26-7) is mounted in the circular ring shape spring groove on spring push-plate (26-6), the right end peace of spring (26-7) In the circular ring shape spring groove on spring stop (26-8), spring push-plate (26-6), spring (26-7) and spring stop (26- 8) it is followed successively by contact connectio, push rod through hole, brake chamber (26-1), spring push-plate (26-6), spring on left support siding (26-7), spring stop (26-8), JHBM pressure sensors (26-13) and the axis of rotation of the blind hole on right support siding are total to Line.

8. according to the testing stand towards commercial semitrailer active emergency braking system described in claim 7, which is characterized in that institute The stent (26-12) stated includes No. 1 identical floor (26-3) of bottom plate, left support siding, right support siding, 2 structures and 2 No. 2 identical floors (26-15) of structure；Wherein：No. 1 floor (26-3) is identical with No. 2 floor (26-15) structures；

The left support siding and right support siding are the identical rectangular flat structural member of appearance and size, left support siding with it is right One long edge position of support siding is respectively arranged with 1 pair of light through hole of installation M20 bolts (26-2), 1 pair of light on left support siding 1 pair of light through hole on through hole and right support siding is to just, 1 pair of light through hole on left support siding and 1 couple on right support siding The line at light through hole center is parallel with the long side of right support siding with left support siding respectively；

The left support siding 1 sets there are one the push rods of push rod in installation brake chamber (26-1) to lead to the lower section of light through hole Hole is equably provided with the bolts hole of 3 installation brake chambers (26-1) around push rod through hole；

The right support siding 1 sets there are one the blind hole of installation JHBM pressure sensors (26-13) lower section of light through hole, The bolt hole of fixed JHBM pressure sensors (26-13), fixed JHBM pressure sensors are equably provided in the bottom hole of blind hole The top of the blind hole of (26-13) is symmetrically provided with the bolt hole of installation M16 guide blots (26-9) with lower section；

The bottom plate is the slab construction part of rectangle, and line of symmetry is symmetrically provided with 6 structures along longitudinal direction on the bottom plate of rectangle The identical bottom hole for bottom plate installation, wherein 2 bottom holes are located at the left and right ends on the longitudinally asymmetric line of bottom plate, 4 A bottom hole is symmetrically located at the front and rear sides of the longitudinally asymmetric line of bottom plate, the line of 2 bottom hole centres of gyration per side It is parallel with the long side of the bottom plate of rectangle；

No. 1 identical floor (26-3) of 2 structures No. 2 floor (26-15) structures identical with 2 structures are identical, No. 1 Floor (26-3) and the plate structure part that No. 2 floors (26-15) are all right angled triangle, are fixed on stent by welding In (26-12) on the left of left support siding between plate upper surface and right support siding right flank and plate upper surface；

The left support siding is vertically installed at lateral symmetry on bottom plate with right support siding along the longitudinal direction of bottom plate, i.e., left Support siding and the lateral symmetry face of right support siding and the longitudinally asymmetric face of bottom plate coplanar, left support siding and right support siding The long side end for being provided with 1 pair of light through hole of installation M20 bolts (26-2) is in upper end, and left support siding is another with right support siding It is fixedly connected between one long side end and bottom plate using welding manner, push rod in the installation brake chamber (26-1) on left support siding Push rod through hole axis of rotation and right support siding on installation JHBM pressure sensors (26-13) blind hole axis of rotation It is conllinear and parallel with bottom plate；No. 1 identical floor (26-3) of 2 structures is symmetrically mounted at left support siding left surface and bottom plate Between upper surface, and use welding manner makes two right-angle sides of No. 1 identical floor (26-3) of 2 structures respectively and left support Siding left surface is fixedly connected with plate upper surface, No. 1 identical with 2 structures of No. 2 identical floors (26-15) of 2 structures Floor (26-3) is symmetrically mounted between right support siding right flank and plate upper surface, and makes 2 knots using welding manner Two right-angle sides of No. 2 identical floors (26-15) of structure are fixedly connected respectively with right support siding right flank with plate upper surface.

9. according to the testing stand towards commercial semitrailer active emergency braking system described in claim 7, which is characterized in that institute The spring push-plate (26-6) stated is made of round estrade, big cylinder and small cylinder, round estrade, big cylinder and small cylinder by Left-to-right is connected successively, and the larger diameter end of round estrade is connected with one end of big cylinder and the diameter of the two is equal, The big other end of cylinder is connected with one end of small cylinder, the axis of rotation of round estrade, big cylinder and small cylinder Collinearly；The right end of small cylinder is set along axis there are one blind hole, and the diameter of small cylinder is less than the internal diameter of spring (26-7), The right end of big cylinder around small cylinder is provided with the circular ring shape spring groove of installation spring (26-7)；Spring push-plate (26- 6) left end of the round estrade in is provided with the screw thread for being threadedly coupled with push rod in brake chamber (26-1) on axis of rotation Blind hole.

10. according to the testing stand towards commercial semitrailer active emergency braking system described in claim 7, which is characterized in that The spring stop (26-8) is made of baffle small cylinder with disk, and the right end of baffle small cylinder and the left end of disk connect Integrally, the rotation conllinear of baffle small cylinder and disk, the left end of baffle small cylinder are provided with one in the axial direction A blind hole, the rotation conllinear of blind hole axis of rotation and baffle small cylinder, the diameter of baffle small cylinder are less than spring The internal diameter of (26-7) is provided with the circular ring shape bullet of installation spring (26-7) in the left end for the disk being connected with baffle small cylinder Spring slot is provided with to install the tapped through hole of M16 guide blots (26-9) at disk upper and lower side.