CN104034538B - Device for accurately measuring vehicle wheel slip ratio - Google Patents
Device for accurately measuring vehicle wheel slip ratio Download PDFInfo
- Publication number
- CN104034538B CN104034538B CN201410280736.9A CN201410280736A CN104034538B CN 104034538 B CN104034538 B CN 104034538B CN 201410280736 A CN201410280736 A CN 201410280736A CN 104034538 B CN104034538 B CN 104034538B
- Authority
- CN
- China
- Prior art keywords
- screw rod
- sensor
- wheel
- slip rate
- screwed pipes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012545 processing Methods 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 238000005259 measurement Methods 0.000 claims description 42
- 210000000078 claw Anatomy 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 16
- 239000000523 sample Substances 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 4
- 101100406366 Caenorhabditis elegans pad-2 gene Proteins 0.000 claims description 3
- 101100084902 Mus musculus Psmd14 gene Proteins 0.000 claims 1
- 101150057849 Padi1 gene Proteins 0.000 claims 1
- 206010039509 Scab Diseases 0.000 description 17
- 239000000203 mixture Substances 0.000 description 6
- 239000000725 suspension Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 102100032282 26S proteasome non-ATPase regulatory subunit 14 Human genes 0.000 description 2
- 101000590281 Homo sapiens 26S proteasome non-ATPase regulatory subunit 14 Proteins 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910001095 light aluminium alloy Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 210000001215 vagina Anatomy 0.000 description 1
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a device for accurately measuring vehicle wheel slip ratio with an aim to overcome the shortcomings that an existing wheel speed measuring device and a vehicle speed sensor cannot accurately measure vehicle wheel speed and wheel hub speed and solve the problem about the lack of a device for directly measuring the vehicle wheel slip ratio. The device comprises a telescopic adjusting mechanism (1), a sensor acquisition processing unit (2), a sensor rotating component (3) and a wheel connecting component (4). The sensor rotating component (3) comprises a rotating shaft (14) and a connecting disc (15); the rotating shaft (14) and the bottom surface of the connecting disc (15) are integrally connected, the lower end of the rotating shaft (14) is rotatably connected with the bottom plate of a device shell (19) in the sensor acquisition processing unit (2), the wheel connecting component (4) is connectively mounted on the connecting disc (15) in a threaded manner, and the right end of a screw D (13) in the telescopic adjusting mechanism (1) is connected with the left side of the device shell (19) in the sensor acquisition processing unit (2) in a welded manner.
Description
Technical field
The present invention relates to a kind of measurement apparatus belonging to running car parameter testing technical field, exactly, the present invention
It is related to a kind of accurate measurement automotive wheel slip rate device.
Background technology
Wheel slip refers to the departure degree that wheel is with respect to simple sliding state, wheel slip s=(v-wr)/v ×
100%, v represent wheel disk speed (m/s), and ω represents angular speed of wheel (rad/s), and r represents vehicle wheel roll radius (m).Car
Wheel slip rate is the key parameter of automobile brake control and stability control, is evaluate control for brake and stability control important
Index, is widely used in automobile active safety technology, for example brake anti-lock device abs is by maintaining slip rate
To improve road holding and handling maneuver ability, the therefore accurate measurement of slip rate shows in the range of 15%-20%
Obtain most important.
Can get the wheelslip of current state by measuring vehicle wheel rotational speed and wheel disk speed and radius of wheel
Rate, radius of wheel is readily available, and depends on vehicle wheel rotational speed and wheel disk tachometric survey by the accuracy of this wheel slip
Accuracy.Existing automotive test measures wheel speed with Wheel-speed measuring apparatus, and primary structure connects wheel for sensor rotation part
Boss bolt, sensor retaining component passes through wheel guard clamp or sucker connects vehicle body, but because wheel and vehicle body pass through suspension
Connecting, the vibration of suspension makes to produce relative displacement between wheel and vehicle body, thus leading to sensor to produce additional rotation, causing
The inaccuracy of wheel speed measurement.Speed is typically obtained by two methods, and one kind is to replace speed with non-driving wheel wheel speed, should
Though method is simply easily achieved, this method is only applicable to two-wheel drive automobile, has certain for four-wheel drive car
Limitation, and this method is not suitable for automotive test yet.Under normal circumstances, running car speed utilizes vehicle speed sensor to survey
Amount, but vehicle speed sensor general measure is vehicle body velocities, because measurement point is different from wheel disk position, makes measurement
Speed and required core wheel speed have certain deviation.In conjunction with theory described above, existing wheel speed and wheel disk speed
Measuring method is not accurate enough, and the installation site being primarily due to wheel speed sensors in measurement process makes wheel produce with vehicle body
Raw relative displacement and vehicle speed sensor installation site be not on wheel disk.As long as therefore ensureing Wheel-speed measuring apparatus and speed
Measurement apparatus are located on wheel disk simultaneously, and in cancellation element measurement process of trying one's best, because of change in location, generation system is missed
Difference, so ensures that the measured value of slip rate and the concordance of actual value.
Content of the invention
The purpose of the present invention is for Wheel-speed measuring apparatus measurement wheel wheel speed in prior art and vehicle speed sensor measurement
Wheel disk speed is inaccurate and the technological deficiency that is not directly measured the device of slip rate in automotive field, and provides one
Plant accurate measurement automotive wheel slip rate device.
Content of the invention
The technical problem to be solved be overcome prior art Wheel-speed measuring apparatus measurement wheel wheel speed and
Vehicle speed sensor measurement wheel disk speed is inaccurate and is not directly measured automotive wheel slip rate dress in automotive field
A kind of problem put, there is provided accurate measurement automotive wheel slip rate device.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that realization: described accurate measurement automobile
Wheel slip device includes scalable guiding mechanism, sensor acquisition processing unit, sensor rotation part and wheel even
Relay part.
Described sensor rotation part is made up of rotary shaft and clutch disk.
The bottom surface of the upper end of rotary shaft and clutch disk is connected, and the lower end of rotary shaft adopts rolling bearing and sensor
The base plate of the crust of the device in acquisition process unit rotates and connects, and wheel connection member is arranged on clutch disk and adopts bolt
Connect, scalable guiding mechanism includes a screw rod, No. 1 screwed pipe, b screw rod, No. 2 screwed pipes, c screw rod, No. 3 screwed pipes and d screw rod；Its
In the right-hand member of d screw rod and sensor acquisition processing unit in the left side of crust of the device be welded to connect, the left end of d screw rod and 3
The right-hand member of number screwed pipe is threaded, and the left end of a screw rod is threadeded with the right-hand member of No. 1 screwed pipe, the left end of No. 1 screwed pipe and b screw rod
Threaded upper ends connect, the lower end of b screw rod is connected with the threaded upper ends of No. 2 screwed pipes, the upper end of the lower end of No. 2 screwed pipes and c screw rod
Threaded, threadeded with the left end of No. 3 screwed pipes in the lower end of c screw rod, and the right-hand member of No. 3 screwed pipes is connected with the left end screw thread of d screw rod
Connect.By rotating the left and right length adjustment of the scalable guiding mechanism described in No. 1 screwed pipe and No. 3 screwed pipes realizations simultaneously, by rotation
Turn the adjustment up and down that No. 2 screwed pipes realize described sensor acquisition processing units, wheel connection member, sensor rotation part with
The rotation conllinear of crust of the device.
Described wheel connection member is made up of with 5 structure identical claws clutch disk.
5 described structure identical claws are all the hook formation part of l shape, at a right angle at the hook formation of claw, become
The end at right angle is machined with the unthreaded hole of installation bolt, and 5 structure identical claws are vertically uniformly mounted to disk upper surface
Same circumference on, the centre of gyration line of circumference that 5 structure identical claws are distributed is conllinear with the centre of gyration line of disk.
The left end of a screw rod described in technical scheme is the cylinder rod member of solid circle cross-section, a left side for cylinder rod member
End is provided with external screw thread, and the right-hand member of a screw rod is set to the oval lock that cross section is rectangle, and oval lock is divided into upper and lower
Two parts, the left end of oval lock is and the junction of cylinder rod member adopts cylindrical pin connection to make lower ellipse part lock
Button latches into rotation with respect to upper oval part and connects, and the right-hand member of oval lock is machined with the manhole of installation bolt.
B screw rod described in technical scheme is the cylindrical structure part of the structure of right angle tyoe of solid circle cross-section, b screw rod
Top and bottom are provided with external screw thread；Described c screw rod is identical with the structure of b screw rod；Described d screw rod is that filled circles are transversal
The cylinder structural member in face, the left end of d screw rod is provided with external screw thread, and the right-hand member of d screw rod is polished rod.
The structure of described in technical scheme No. 1 screwed pipe, No. 2 screwed pipes and No. 3 screwed pipes is identical, No. 1 screwed pipe, No. 2 screwed pipes and 3
The two ends of number screwed pipe are all set to positive/negative thread, a screw rod, b screw rod, c screw rod and d screw flight rotation direction successively with connected
The thread rotary orientation of No. 1 screwed pipe, No. 2 screwed pipes and No. 3 screwed pipes is identical.
Sensor acquisition processing unit described in technical scheme includes wheel speed sensors, gps vehicle speed sensor, sliding
Rate computing unit and crust of the device.Described gps vehicle speed sensor selects the sensor of model sl-sg101.Slip rate calculates single
Unit is from single-chip microcomputer, the pad1 pin of model mc9s12dp512 single-chip microcomputer and the wheel speed sensors of model mc9s12dp512
Outfan electric wire connect, the pad2 pin of model mc9s12dp512 single-chip microcomputer and the outfan electric wire of gps vehicle speed sensor
Connect, wheel speed sensors, gps vehicle speed sensor and slip rate computing unit are arranged in crust of the device.
Wheel speed sensors described in technical scheme select the electromagnetic sensor of model hq90007b, include
Sensor signal triggering gear ring and sensor signal probe；Described sensor signal triggering gear ring is arranged on wheel by key
On the lower end of rotary shaft in the sensor rotation part rotating together, sensor signal probe is arranged on outside fixed device
The inner side of shell, the installation site of sensor signal probe will make its alignment probe sensor signal trigger the flank of tooth of gear ring and make spy
Head alignment sensor signal triggers the axis of rotation of gear ring.
Compared with prior art the invention has the beneficial effects as follows:
1. existing Wheel-speed measuring apparatus and speed are passed by accurate measurement automotive wheel slip rate device of the present invention
Form the device dedicated for measurement automotive wheel slip rate after the integrated improvement of sensor, also directly do not survey in motor field current
The device of amount slip rate, thus embody the novelty of the present invention.
2. accurate measurement automotive wheel slip rate device installation site of the present invention, on wheel, eliminates because of suspension
Vibration and produce wheel and vehicle body relative displacement for slip rate precision impact, meanwhile, wheel speed sensors and speed sensing
The measurement point position of device in wheel disk position it is ensured that the concordance of both measurement points so that slip rate measured value and cunning
The actual value of shifting rate is more nearly, and is more applicable for automobile braking performance and controls evaluation test and measurement with stability control.
3. accurate measurement automotive wheel slip rate apparatus structure of the present invention is simple, installs more convenient, depends merely on spiral shell
Tether to connect and can be fixed on wheel, simultaneously required material is easy to get, and cost is relatively low.
Brief description
The present invention is further illustrated below in conjunction with the accompanying drawings:
Fig. 1 is that accurate measurement automotive wheel slip rate device of the present invention is provided with structure composition during tested wheel
Front view；
Fig. 2 is that accurate measurement automotive wheel slip rate device of the present invention has been fitted without tested wheel and has removed outstanding
The top view of structure composition when frame leading arm, a screw rod, No. 1 screwed pipe, b screw rod and No. 2 screwed pipes；
Fig. 3 is the wheel connection member structure employed in accurate measurement automotive wheel slip rate device of the present invention
The front view of composition；
Fig. 4 is a screw-rod structure composition employed in accurate measurement automotive wheel slip rate device of the present invention
Top view；
Fig. 5 is that the sensor acquisition employed in accurate measurement automotive wheel slip rate device of the present invention processes list
The top view of meta structure composition；
Fig. 6 is the control flow block diagram of accurate measurement automotive wheel slip rate device of the present invention.
In figure: 1. scalable guiding mechanism, 2. sensor acquisition processing unit, 3. sensor rotation part, 4. wheel company
Relay part, 5. wheel, 6. suspension leading arm, 7.a screw rod, No. 8.1 screwed pipes, 9.b screw rod；No. 10.2 screwed pipes, 11.c screw rod；12.3
Number screwed pipe, 13.d screw rod, 14. rotary shafts, 15. clutch disks；16. wheel speed sensors, 17.gps vehicle speed sensor, 18. slidings
Rate computing unit, 19. crusts of the device, 20. sensor signal triggering gear rings, 21. sensor signal probes.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is explained in detail:
Refering to Fig. 1 and Fig. 2, accurate measurement automotive wheel slip rate device of the present invention includes scalable guiding mechanism
1st, sensor acquisition processing unit 2, sensor rotation part 3 and wheel connection member 4.
The bottom surface of the upper end of rotary shaft 14 and clutch disk 15 is connected, and the lower end of rotary shaft 14 adopts bearing and sensing
The base plate of the crust of the device 19 in device acquisition process unit 2 rotates and connects, and wheel connection member 4 is arranged on clutch disk 15 simultaneously
With bolts, outside the right-hand member of d screw rod 13 in scalable guiding mechanism 1 and the device in sensor acquisition processing unit 2
The left side of shell 19 is welded to connect, the rotation conllinear of wheel connection member 4, sensor rotation part 3 and crust of the device 19.
Described sensor rotation part 3 includes rotary shaft 14 and clutch disk 15；
The upper end of rotary shaft 14 is connected into the structural member of t font, rotary shaft with the center of clutch disk 15 bottom surface
14 and the rotation conllinear of clutch disk 15, clutch disk 15 is machined with three screwed holes, is connected by bolt and wheel
Part 4 connects, and the lower end of rotary shaft 14 adopts the base plate of the crust of the device 19 in rolling bearing and sensor acquisition processing unit 2
Rotate and connect, rotary shaft 14 and rotation clutch disk 15 synchronous axial system during wheel rotation.
Refering to Fig. 3, described wheel connection member 4 is made up of with 5 structure identical claws clutch disk；Wheel connects
Part 4 corresponds to the structural member designed by wheel hub bolt, and general automotive wheel has 5 boss bolts, therefore, described
Wheel connection member 4 is designed as the disc structure part of 5 structure identical claws, and 5 structure identical claws are all l shape
Hook formation part, 5 structure identical claws are vertically uniformly mounted on the same circumference of disk upper surface, 5 structures
The centre of gyration line of the circumference that identical claw is distributed is conllinear with the centre of gyration line of disk, for the ease of wheel connection member
4 are connected with wheel 5, are machined with unthreaded hole in claw end at a right angle, are fastened by wheel hub bolt.
Described scalable guiding mechanism 1 is mainly by 7, No. 1 screwed pipe 8 of a screw rod, 9, No. 2 screwed pipes 10 of b screw rod, c screw rod 11,3
Number screwed pipe 12 and d screw rod 13 component composition.The material of each parts in described scalable guiding mechanism 1 is all using quality relatively
Light aluminium alloy.
Refering to Fig. 4, the left end of described a screw rod 7 is the cylinder rod member of solid circle cross-section, the left end of cylinder rod member
It is provided with external screw thread, the right-hand member of a screw rod 7 is set to the oval lock that cross section is rectangle, oval lock is divided into upper and lower two
Part, that is, be respectively set to arc body lock and arc lower body lock, the left end of oval lock is (i.e. with cylinder rod member
Junction) connect so that upper arc body lock latches into rotation with arc lower body and is connected using cylindrical pin, oval lock
Right-hand member is that connection end is machined with manhole, will be solid with arc lower body lock i.e. oval lock for upper arc body lock by bolt
It is scheduled on the suspension leading arm 6 at wheel rear portion；
Described b screw rod 9 is the cylindrical structure part of the shape at a right angle of solid circle cross-section, and its two ends is provided with outer spiral shell
Stricture of vagina；Described c screw rod 11 is identical with the structure of b screw rod 9；Described d screw rod 13 is the cylinder structure of solid circle cross-section
Part, (left) end of one is provided with external screw thread, and another (right) end is fixedly connected with the left side of crust of the device 19 by way of welding.
The structure of described 8, No. 2 screwed pipes 10 of No. 1 screwed pipe and No. 3 screwed pipes 12 is identical, and its cross section is circular ring section,
Two ends are set to positive and negative screw thread (screw thread)；Therefore, (right) end of the one of a screw rod 7 (left) end, No. 1 screwed pipe 8 and b screw rod 9, b spiral shell
Bar 9 another (under) end, No. 2 screwed pipes 10 and c screw rod 11 one (on) end, c screw rod 11 another (under) end, No. 3 screwed pipes 12 and d
One (left) end of screw rod 13 forms double end screwed pipe screw-rod structure at three, and screw flight rotation direction is revolved with the screw thread of the screwed pipe being connected
To identical, it be easy to double end screwed pipe screw-rod structure and can tighten simultaneously or unclamp, by rotating No. 1 screwed pipe 8 and No. 3 screwed pipes simultaneously
The 12 left and right length adjustment that can achieve described scalable guiding mechanism 1, can achieve described sensing by rotating No. 2 screwed pipes 10
The adjustment up and down of device acquisition process unit 2, is so adapted to the demand of different automobile types different kinds of tyre.
Refering to Fig. 5, described sensor acquisition processing unit 2 include wheel speed sensors 16, gps vehicle speed sensor 17,
Slip rate computing unit 18 and crust of the device 19.
Described wheel speed sensors 16 select the electromagnetic sensor of model hq90007b, include sensor letter
Number triggering gear ring 20 and sensor signal probe 21.Described sensor signal triggering gear ring 20 is arranged on wheel 5 by key
On the lower end of rotary shaft 14 rotating together, described sensor signal probe 21 is arranged on fixed crust of the device 19
Inner side, the installation site of sensor signal probe 21 will make its alignment probe sensor signal trigger the flank of tooth of gear ring 20 and make spy
Head alignment sensor signal triggers the axis of rotation of gear ring 20, and such installation site ensures the accuracy of wheel speed measurement.Wheel speed
The main operational principle of sensor 16 is: in car running process, the rotation of wheel 5 makes turning in sensor rotation part 3
Moving axis 14 rotates, thus driving sensor signal triggering gear ring 20 to rotate, causes the change of sensor signal probe 21 magnetic flux,
Produce the potential pulse being directly proportional to vehicle wheel rotational speed, thus obtaining vehicle wheel rotational speed.
Described gps vehicle speed sensor 17 selects the sensor of model sl-sg101, and sending and receiving frequency is 100hz,
From frequency its measurement precision higher better.Described gps vehicle speed sensor 17 is that gps reception antenna receives core with gps
The two-in-one sensor of piece, the main operational principle of gps vehicle speed sensor 17 is: is gps satellite and gps using Doppler effect
Vehicle speed sensor there is relative motion so that the frequency not phase that sends with gps satellite of frequency that gps vehicle speed sensor 17 receives
Same principle, calculates Doppler frequency shift, the wheel disk speed according to required for Doppler frequency shift obtains.
Described crust of the device 19 adopts the relatively light aluminum alloy material of quality, and its structure is thin-wall tubular structure, institute
The crust of the device 19 stated is connected with the right-hand member of the d screw rod 13 in scalable guiding mechanism 1 by welding manner, sensor rotation portion
The lower end of the rotary shaft 14 in part 3 is passed through rolling bearing and is connected with the center rotation of crust of the device 19 base plate, so can protect
While the rotary shaft 14 of sensor rotation part 3 rotates, crust of the device 21 maintains static card.
Slip rate computing unit 18 selects the single-chip microcomputer of model mc9s12dp512, and crystal oscillator frequency is 16mhz.Chip bag
Include etc module, data processing module data sending module is called in pwm module, atd module, mastery routine timing.Model
The outfan electric wire that the pad1 pin of mc9s12dp512 single-chip microcomputer is sensor signal probe 21 with wheel speed sensors 16 is connected,
The pad2 pin of model mc9s12dp512 single-chip microcomputer is connected with the outfan electric wire of gps vehicle speed sensor 17, model
The vcc pin of the single-chip microcomputer of mc9s12dp512 connects power supply+5v end.The output letter of wheel speed sensors 16 and gps vehicle speed sensor 17
Number be digital signal, in the memorizer of the single-chip microcomputer being input to model mc9s12dp512 after treatment, model
Equipped with self-editing computer program in the memorizer of the single-chip microcomputer of mc9s12dp512, by the monolithic of model mc9s12dp512
Machine calculating processes and obtains required slip rate.
Described gps vehicle speed sensor 17 and slip rate computing unit 18 are arranged on the base plate of crust of the device 19.
The work process of described accurate measurement automotive wheel slip rate device:
Refering to Fig. 6, wheel speed sensors 16 collection wheel speed signal, gps vehicle speed sensor 17 collecting vehicle in car running process
Wheel core wheel rate signal, wheel speed signal and wheel disk rate signal are obtained currently by slip rate computing unit 18 after treatment
The slip rate of state, the computing formula of slip rate is: s=(v-wr)/v × 100%, and wherein, v represents wheel disk speed (m/
S), ω represents angular speed of wheel (rad/s), and r represents vehicle wheel roll radius (m), and slip rate is the data of real-time change, the present invention
Collection slip rate that described accurate measurement automotive wheel slip rate device can continue simultaneously exports in real time.
Claims (6)
1. a kind of accurate measurement automotive wheel slip rate device is it is characterised in that described accurate measurement automotive wheel slip rate
Device includes scalable guiding mechanism (1), sensor acquisition processing unit (2), sensor rotation part (3) and wheel and connects
Part (4)；
Described sensor rotation part (3) is made up of rotary shaft (14) and clutch disk (15)；
The bottom surface of the upper end of rotary shaft (14) and clutch disk (15) is connected, and the lower end of rotary shaft (14) adopts rolling bearing
Rotate with the base plate of the crust of the device (19) in sensor acquisition processing unit (2) and be connected, wheel connection member (4) company of being arranged on
Connect disk (15) upper and with bolts, scalable guiding mechanism (1) includes a screw rod (7), No. 1 screwed pipe (8), b screw rod
(9), No. 2 screwed pipes (10), c screw rod (11), No. 3 screwed pipes (12) and d screw rod (13)；The right-hand member of d screw rod (13) therein and sensing
The left side of the crust of the device (19) in device acquisition process unit (2) is welded to connect, the left end of d screw rod (13) and No. 3 screwed pipes (12)
Right-hand member threaded, the left end of a screw rod (7) is threadeded with the right-hand member of No. 1 screwed pipe (8), the left end of No. 1 screwed pipe (8) and b spiral shell
The threaded upper ends of bar (9) connect, and the lower end of b screw rod (9) is connected with the threaded upper ends of No. 2 screwed pipes (10), under No. 2 screwed pipes (10)
End is connected with the threaded upper ends of c screw rod (11), and threadeded with the left end of No. 3 screwed pipes (12) in the lower end of c screw rod (11), No. 3 spiral shells
The right-hand member of pipe (12) is threadeded with the left end of d screw rod (13)；Realized by rotating No. 1 screwed pipe (8) and No. 3 screwed pipes (12) simultaneously
The left and right length adjustment of described scalable guiding mechanism (1), realizes described sensor acquisition by rotating No. 2 screwed pipes (10)
The gyroaxis of the adjustment up and down of processing unit (2), wheel connection member (4), sensor rotation part (3) and crust of the device (19)
Line is conllinear；
Described wheel connection member (4) is made up of with 5 structure identical claws clutch disk；
5 described structure identical claws are all the hook formation part of l shape, at a right angle at the hook formation of claw, at a right angle
End be machined with the unthreaded hole of installation bolt, 5 structure identical claws are vertically uniformly mounted to the same of disk upper surface
On one circumference, the centre of gyration line of circumference that 5 structure identical claws are distributed is conllinear with the centre of gyration line of disk.
2. according to the accurate measurement automotive wheel slip rate device described in claim 1 it is characterised in that described a screw rod (7)
Left end be solid circle cross-section cylinder rod member, the left end of cylinder rod member is provided with external screw thread, the right-hand member of a screw rod (7)
Be set to the oval lock that cross section is rectangle, oval lock is divided into upper and lower two parts, the left end of oval lock i.e. and
The junction of cylinder rod member is connected using cylindrical pin so that lower oval part lock latches into respect to upper ellipse part and turns
It is dynamically connected, the right-hand member of oval lock is machined with the manhole of installation bolt.
3. according to the accurate measurement automotive wheel slip rate device described in claim 1 it is characterised in that described b screw rod (9)
For the cylindrical structure part of the structure of right angle tyoe of solid circle cross-section, the top and bottom of b screw rod (9) are provided with external screw thread；
Described c screw rod (11) is identical with the structure of b screw rod (9)；Described d screw rod (13) is the cylinder knot of solid circle cross-section
Component, the left end of d screw rod (13) is provided with external screw thread, and the right-hand member of d screw rod (13) is polished rod.
4. according to the accurate measurement automotive wheel slip rate device described in claim 1 it is characterised in that No. 1 described screwed pipe
(8), the structure of No. 2 screwed pipes (10) and No. 3 screwed pipes (12) is identical, No. 1 screwed pipe (8), No. 2 screwed pipes (10) and No. 3 screwed pipes (12)
Two ends are all set to positive/negative thread, a screw rod (7), b screw rod (9), c screw rod (11) and d screw rod (13) thread rotary orientation successively and institute
The thread rotary orientation of No. 1 screwed pipe (8), No. 2 screwed pipes (10) and No. 3 screwed pipes (12) that connect is identical.
5. according to the accurate measurement automotive wheel slip rate device described in claim 1 it is characterised in that described sensor is adopted
Collection processing unit (2) includes wheel speed sensors (16), gps vehicle speed sensor (17), slip rate computing unit (18) and device
Shell (19)；
Described gps vehicle speed sensor (17) selects the sensor of model sl-sg101；
Slip rate computing unit (18) selects the single-chip microcomputer of model mc9s12dp512, model mc9s12dp512 single-chip microcomputer
Pad1 pin is connected with the outfan electric wire of wheel speed sensors (16), the pad2 pin of model mc9s12dp512 single-chip microcomputer with
The connection of outfan electric wire, wheel speed sensors (16), gps vehicle speed sensor (17) and the slip rate meter of gps vehicle speed sensor (17)
Calculate unit (18) to be arranged in crust of the device (19).
6. according to the accurate measurement automotive wheel slip rate device described in claim 5 it is characterised in that described wheel speed senses
The electromagnetic sensor of model hq90007b selected by device (16), includes sensor signal triggering gear ring (20) and sensing
Device signal probe (21)；Described sensor signal triggering gear ring (20) is arranged on, by key, the biography rotating with wheel (5)
On the lower end of rotary shaft (14) in sensor rotatable parts (3), sensor signal probe (21) is arranged on outside fixed device
The inner side of shell (19), the installation site of sensor signal probe (21) will make its alignment probe sensor signal triggering gear ring (20)
The flank of tooth and make alignment probe sensor signal trigger gear ring (20) axis of rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410280736.9A CN104034538B (en) | 2014-06-22 | 2014-06-22 | Device for accurately measuring vehicle wheel slip ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410280736.9A CN104034538B (en) | 2014-06-22 | 2014-06-22 | Device for accurately measuring vehicle wheel slip ratio |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104034538A CN104034538A (en) | 2014-09-10 |
| CN104034538B true CN104034538B (en) | 2017-01-18 |
Family
ID=51465395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410280736.9A Expired - Fee Related CN104034538B (en) | 2014-06-22 | 2014-06-22 | Device for accurately measuring vehicle wheel slip ratio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104034538B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203314A (en) * | 2015-10-10 | 2015-12-30 | 东北农业大学 | Device for measuring slip rate of walking ground wheels of combined seed and fertilizer drill |
| WO2019127506A1 (en) * | 2017-12-29 | 2019-07-04 | 深圳配天智能技术研究院有限公司 | Tire monitoring method, slip ratio calculation device, system, vehicle, storage device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1480364A (en) * | 2003-07-29 | 2004-03-10 | 彭盛章 | Braking device capable of preventing dead holding |
| CN101028797A (en) * | 2007-03-30 | 2007-09-05 | 吉林大学 | Optimum wheel trackslip rate realtime discrimination for tractive cotnrolling system of automobile |
| CN101774338A (en) * | 2010-02-09 | 2010-07-14 | 洛阳市凯涛金属有限公司 | Retractable and adjustable U-shaped support arm structure for automobile chassis suspension wheel |
| CN201974442U (en) * | 2011-03-08 | 2011-09-14 | 吉林大学 | Detector of magneto-electric type wheel speed sensor |
| CN202159070U (en) * | 2011-05-30 | 2012-03-07 | 山东理工大学 | Novel wheel speed measuring device for automobile |
| CN103217301A (en) * | 2013-04-11 | 2013-07-24 | 奇瑞汽车股份有限公司 | Device and method for detecting brake performance of automobile |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3651549B2 (en) * | 1998-02-13 | 2005-05-25 | 三菱自動車工業株式会社 | Road friction coefficient judgment device |
| JP2010276446A (en) * | 2009-05-28 | 2010-12-09 | Bridgestone Corp | Braking simulation apparatus |
-
2014
- 2014-06-22 CN CN201410280736.9A patent/CN104034538B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1480364A (en) * | 2003-07-29 | 2004-03-10 | 彭盛章 | Braking device capable of preventing dead holding |
| CN101028797A (en) * | 2007-03-30 | 2007-09-05 | 吉林大学 | Optimum wheel trackslip rate realtime discrimination for tractive cotnrolling system of automobile |
| CN101774338A (en) * | 2010-02-09 | 2010-07-14 | 洛阳市凯涛金属有限公司 | Retractable and adjustable U-shaped support arm structure for automobile chassis suspension wheel |
| CN201974442U (en) * | 2011-03-08 | 2011-09-14 | 吉林大学 | Detector of magneto-electric type wheel speed sensor |
| CN202159070U (en) * | 2011-05-30 | 2012-03-07 | 山东理工大学 | Novel wheel speed measuring device for automobile |
| CN103217301A (en) * | 2013-04-11 | 2013-07-24 | 奇瑞汽车股份有限公司 | Device and method for detecting brake performance of automobile |
Non-Patent Citations (1)
| Title |
|---|
| "电动轮驱动汽车的最佳车轮滑移率实时识别";靳立强 等;《吉林大学学报（工学版）》;20100731;第40卷(第4期);第889-894页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104034538A (en) | 2014-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2009535611A (en) | Device for measuring vehicle data, especially the speed of vehicles traveling on wheels | |
| CA2814034A1 (en) | Sensor apparatus and method for determining pedalling cadence and travelling speed of a bicycle | |
| CN201072422Y (en) | Train speed sensor | |
| CN104034538B (en) | Device for accurately measuring vehicle wheel slip ratio | |
| CN206177376U (en) | Vane -wheel type flowmeter does not have magnetism signal pickup assembly | |
| CN101634600A (en) | Method for measuring rotation inertia of three-wire pendulum | |
| CN103604562B (en) | The proving installation of two-dimensional rotation mechanism and complex parts moment of inertia thereof and method | |
| EP0163719A1 (en) | Apparatus for measuring the lateral inclination of a supporting surface by means of a vehicle drivable thereon | |
| EP2700926A2 (en) | Non-contact type torque and angle of rotation sensing device and measurement method using same | |
| CN101144828A (en) | Non-contact speed gage calibrating apparatus | |
| CN109974662A (en) | Bicycle and road information acquisition method for road information acquisition | |
| CN201000452Y (en) | Conical plate type velocity attenuation blood viscosity measuring apparatus | |
| CN104296907A (en) | Method and device for measuring return friction resistance torque and return abnormity troubleshooting method | |
| CN1020774C (en) | High-speed highway level | |
| CN208630790U (en) | A kind of power system of electric automobile, torque-measuring apparatus | |
| CN201302438Y (en) | A special measuring gauge for simultaneously measuring mounting distance and offset distance of spiral bevel gear pair | |
| CN106679873B (en) | A method of brake force is measured using three-dimensional arrangement device for measuring force | |
| EP3783319B1 (en) | Flow meter | |
| CN110132490B (en) | Dynamic balance detection system for wheels of running vehicle | |
| CN208420239U (en) | A kind of torque testing agency | |
| CN110525560B (en) | Method for measuring bicycle running distance based on air pressure sensor and bicycle | |
| CN101285738A (en) | Automobile braking road test instrument inspection instrument | |
| CN107192368B (en) | A kind of rotation angle measurement method of 3 structure faces dead axle | |
| RU2370730C2 (en) | Clearance metre with dial dynamometre to diagnose steering gear | |
| CN201047745Y (en) | Angle meter used for measuring corner between two revolving body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 |