CN109655296B - Electric power steering gear-mounting seat combined force detection mechanism - Google Patents
Electric power steering gear-mounting seat combined force detection mechanism Download PDFInfo
- Publication number
- CN109655296B CN109655296B CN201811487997.2A CN201811487997A CN109655296B CN 109655296 B CN109655296 B CN 109655296B CN 201811487997 A CN201811487997 A CN 201811487997A CN 109655296 B CN109655296 B CN 109655296B
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- push
- core rod
- electric power
- detection mechanism
- power steering
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- 238000001514 detection method Methods 0.000 title claims abstract description 37
- 238000012360 testing method Methods 0.000 claims abstract description 21
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0033—Force sensors associated with force applying means applying a pulling force
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0038—Force sensors associated with force applying means applying a pushing force
Abstract
The invention belongs to the technical field of automobiles, and discloses an electric power steering gear-mounting seat combined force detection mechanism, which comprises a test seat and a core rod used for sleeving a combined steering column, wherein one end of the core rod is hinged on the test seat, the other end of the core rod is supported by a supporting piece to keep the core rod horizontal, and an anti-rotation positioning piece is arranged on the core rod to prevent the steering column from rotating relative to the core rod; the side of the handle of the steering column is provided with a push-pull force meter, a contact of the push-pull force meter faces the surface of the handle of the column, the push-pull force meter is arranged at the end part of a rotary cantilever which can rotate around a fixed point through a fixed structure, a sensor is arranged in the rotary path of the rotary cantilever and used for sensing the position of the rotary cantilever, and the sensor is in signal connection with the push-pull force meter. The rotary cantilever is driven to rotate, so that the tubular column handle is driven to be pressed down by the push-pull force gauge contact, the sensor senses that the rotary cantilever reaches a specific position, the push-pull force gauge records the numerical value (namely locking force) at the moment, and the detection mechanism is simple in integral structure and can provide effective reference for combined quality.
Description
Technical Field
The invention relates to the technical field of automobile steering systems, in particular to a combined force detection mechanism of an electric power steering gear and a mounting seat.
Background
The existing electric power steering gear-mounting seat combination is generally used for measuring the force by manually operating a spring balance to measure the opening force of a handle, but no special device is used for measuring the locking force, the opening force and the holding force of the handle of the electric power steering column, and the results of manually operating the spring balance to measure the opening force of the handle cannot be accurate, so that the related parameters and data information such as the forces cannot be accurately known, and the product quality of the electric power steering column cannot be ensured.
Disclosure of Invention
The invention solves the technical problem of overcoming the defects of the prior art and providing the electric power steering gear-mounting seat combined force detection mechanism which can detect the locking force value of the handle so as to determine whether the torque range meeting the design requirement is reached.
The aim of the invention is achieved by the following technical scheme:
the electric power steering device-mounting seat combined force detection mechanism comprises a test seat and a core rod for sleeving the electric power steering device-mounting seat combined steering pipe column, wherein one end of the core rod is hinged to the test seat, the other end of the core rod is supported by a supporting piece to keep the core rod horizontal, and an anti-rotation positioning piece is arranged on the core rod to prevent the steering pipe column and the core rod from rotating relatively; the side of the handle of the steering column is provided with a push-pull force meter, a contact of the push-pull force meter faces the surface of the handle of the column, the push-pull force meter is arranged at the end part of a rotary cantilever which can rotate around a fixed point through a fixed structure, a sensor is arranged in the rotary path of the rotary cantilever and used for sensing the position of the rotary cantilever, and the sensor is in signal connection with the push-pull force meter.
Further, the device also comprises a force application handle capable of driving the rotary cantilever to rotate, wherein the force application handle is connected with a fixed structure for installing the push-pull force gauge, and the force application handle is arranged close to the push-pull force gauge contact.
Further, the anti-rotation locating piece comprises a disc protruding out of the periphery of the core rod and a locating pin arranged on the end face of the disc, a base plate of a mounting seat of the steering column is attached to the end face of the disc, and the locating pin is inserted into a mounting hole on the base plate of the mounting seat.
Further, the support piece is including locating the support column of locating on the test seat and two butterfly plate positions department and butterfly plate bottom surface butt of steering column, still including locating two flexible jars on the test seat, the flexible execution end of two flexible jars all articulates there is a clamp plate, clamp plate middle section department still articulates with a connecting rod, the connecting rod other end articulates to on a fixed point, two clamp plates can compress tightly the butterfly plate top surface when the flexible execution end of two flexible jars stretches out respectively.
Further, a drag hook which can be matched with the contact of the push-pull force meter to clamp the tubular column handle is detachably arranged on the contact of the push-pull force meter.
Further, the rotation fixed point of the rotary cantilever is connected with a rotary shaft, the rotary shaft penetrates through a bearing seat with fixed position, and a bearing is sleeved on the shaft section of the rotary shaft in the bearing seat for the rotary shaft to flexibly rotate.
Still further, the force detection mechanism further comprises a tray for bearing the bearing seat, a first horizontal guide rail perpendicular to the axis of the core rod is further arranged on the test seat, a sliding block matched with the first horizontal guide rail is arranged at the bottom of the tray, and the tray can drive the bearing seat to slide along the first horizontal guide rail.
Still further, the tray is provided with a sensor mounting ring on which the sensor is mounted.
Further, a thruster is arranged below the free end of the core rod, a push rod of the thruster can apply lifting force to the core rod, a stroke sensor and an alarm device which can monitor stroke information of the push rod are arranged on the thruster, and the stroke sensor is in signal connection with the alarm device.
Furthermore, the test seat is provided with a second horizontal guide rail perpendicular to the axis of the core rod at the position where the thruster is arranged, the bottom of the thruster is provided with a sliding block matched with the second horizontal guide rail, and the thruster can slide along the second horizontal guide rail.
Compared with the prior art, the invention has the following beneficial effects:
1) The rotating cantilever is driven to rotate around the fixed point through the force application handle, so that the tubular column handle is driven to be pressed down by the contact of the push-pull force gauge, the sensor senses the rotating cantilever to reach a specific position, the push-pull force gauge records the numerical value at the moment, the numerical value is the locking force value, the whole structure of the detection mechanism is simple, the cost is low, and an effective reference can be provided for the quality of the electric power steering gear-mounting seat combination;
2) The arrangement of the telescopic cylinder and the pressing plate provides a compacting and stabilizing force for the steering column, meanwhile, the pull hook is arranged on the contact of the push-pull force meter, the pull hook drives the column handle to lift up through operating the force application handle, in the lifting process, the push-pull force meter records a maximum value, and the maximum value is an opening force value, in general, when the detection mechanism is adopted for measuring force, the whole process of measuring the free state of the electric power steering device-mounting seat combination-locking force-opening force can be completed at one time, the positioning locking and opening simulate the actual loading state and ergonomics;
3) The bearing seat for the rotation of the rotary cantilever is arranged on the tray, and the tray is arranged to slide along the first horizontal guide rail, so that the electric power steering gear can be conveniently installed and detached, and a larger disassembly space is provided for the electric power steering gear when the electric power steering gear is combined with the installation seat;
4) The thruster arranged below the free end of the core rod applies lifting force to the core rod, a stroke sensor of the thruster timely senses the displacement state of the push rod, and the alarm device timely provides alarm information according to the displacement state, so that whether the holding force of the electric power steering gear-mounting seat combination reaches the standard is judged;
5) The thruster can slide along the second horizontal guide rail and can withdraw the horizontal support provided for the core rod, so that whether the height of the core rod is in a horizontal state or not under the support of the hinged end and the pneumatic compression structure formed by the support column, the telescopic cylinder and the pressing plate can be judged;
6) The detection mechanism is simple to assemble in a test, and has strong interchangeability and universality in the process of detecting combinations of different electric power steering gears and mounting seats.
Drawings
Fig. 1 is a schematic structural diagram of a combined force detection mechanism of an electric power steering gear-mounting seat (locking force is detected without a drag hook) in embodiment 1;
FIG. 2 is a schematic diagram showing the process of detecting the locking force and the unlocking force by the detecting mechanism according to the embodiment 1;
FIG. 3 is a schematic diagram of the connection of the drag hook to the push-pull gauge contact and the tubular column handle described in example 1;
FIG. 4 is a schematic diagram of the structure of the detecting mechanism for detecting opening force according to the embodiment 1;
fig. 5 is a schematic structural view of the detection mechanism of embodiment 1 for measuring holding force.
Detailed Description
The present invention will now be described further in connection with the following detailed description, wherein the drawings are for purposes of illustration only and are not intended to be limiting; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Example 1
As shown in fig. 1, there is provided a combined force detection mechanism of an electric power steering device and an installation seat, which comprises a test seat and a core rod 2 for sleeving a steering column 1 in the combined electric power steering device and the installation seat, wherein the test seat comprises an installation bottom plate 31 and a vertical plate 32 vertically arranged on the installation bottom plate, a movable plate 33 is hinged on the vertical plate 32 by using a pin bolt, a hole matched with the end part of the core rod is formed in the movable plate 33, one end of the core rod 2 is inserted into the hole of the movable plate 33, at the moment, the core rod 2 is correspondingly hinged on the test seat, the other end of the core rod is supported by a supporting piece to keep the core rod horizontal, and an anti-rotation positioning piece is required to be arranged on the core rod 2 to prevent the steering column and the core rod from rotating relatively for ensuring the detection effect; the push-pull force meter 41 is arranged on the side of the column handle 11 of the steering column, a push-pull force meter contact 411 faces the surface of the column handle 11, the push-pull force meter 41 is arranged at the end part of a rotary cantilever 51 capable of rotating around a fixed point through a fixed structure, a sensor 6 is arranged in the rotary path of the rotary cantilever 51 and used for sensing the position of the rotary cantilever, the setting position of the sensor 6 is close to a locking terminal point, and the sensor 6 is in signal connection with the push-pull force meter 41; in order to facilitate the rapid driving of the rotary cantilever 51 to rotate, the detection mechanism is also provided with a force application handle 7 which can drive the rotary cantilever 51 to rotate.
Specifically, the anti-rotation positioning member comprises a disc 21 protruding out of the periphery of the core rod 2 and a positioning pin 22 arranged on the end face of the disc, a mounting seat bottom plate 31 of the steering column is attached to the end face of the disc 21, and the positioning pin 22 is inserted into a mounting hole on the mounting seat bottom plate 31.
The fixing structure for installing the push-pull force meter comprises a fixing plate 42 capable of integrally covering the bottom of the push-pull force meter 41 and a link arm 43 fixedly connected with the outer surface of the fixing plate, the fixing plate 42 is connected with the push-pull force meter 41 through bolts, the link arm 43 forms a certain angle with the outer surface of the fixing plate 42, the end part of the link arm 43 is detachably connected with the end part of the rotary cantilever 51 at a certain angle, the fixing plate 42 stretches out of two wing plates along the width direction at the end part close to the push-pull force meter contact 411, the force application handle 7 is provided with a connecting end 71 capable of bypassing the push-pull force meter 41 and fixedly connected with the wing plates through bolts, at the moment, the position of the force application handle 7 is very close to the tubular column handle 11, so that the force applied to the force application handle can be greatly reduced, and secondly, when the force application handle is operated in terms of a small radian, the rotary cantilever can generate large radian rotation, and the sensor is convenient to sense the position of the force application handle.
The rotation fixed point of the rotary cantilever 51 is connected with a rotary shaft, the rotary shaft penetrates through a bearing seat 52 with fixed position, and a bearing is sleeved on the shaft section of the rotary shaft in the bearing seat for the rotary shaft to flexibly rotate.
The bearing seat 52 is fixed on a higher tray 34, the tray provides bearing for the bearing seat, in order to enable a larger disassembly space to be provided when the electric power steering gear-mounting seat combination is assembled and disassembled, the mounting bottom plate 31 of the test seat is further provided with a first horizontal guide rail 35 perpendicular to the axis of the core rod at the corresponding position of the tray 34, the bottom of the tray 34 is provided with a sliding block matched with the first horizontal guide rail 35, the tray 34 can drive the bearing seat 52 to slide along the first horizontal guide rail 35, and the side surface of the tray 34 is provided with a pull rod 341, so that an operator can conveniently exert force when pushing and pulling the tray.
The tray 34 is provided with a sensor mounting ring 36, and the sensor 6 is mounted on the sensor mounting ring 36.
The structure of the detection mechanism can realize the detection of the locking force value of the electric power steering gear-mounting seat combination in the locking state.
The support piece is including locating on the mounting plate 31 and the support column 81 of two butterfly 13 positions department and butterfly bottom surface butt of steering column, still including locating two flexible jar 82 on the mounting plate 31, the flexible execution end of two flexible jar all articulates there is a clamp plate 83, clamp plate 83 middle section department still articulates with a connecting rod 84, the connecting rod 84 other end articulates to a fixed point, this fixed point also can be a certain point on the flexible jar 82, and two clamp plates 83 can compress tightly butterfly 13 top surface when stretching out at the flexible execution end of two flexible jar respectively, when the flexible execution end of flexible jar is retracted, two clamp plates 83 then release the clamp force to butterfly 13, flexible jar is the cylinder, the support column, clamp plate, connecting rod and cylinder have constituted the pneumatic compaction structure to the butterfly jointly, this pneumatic compaction structure can further ensure the mounting stability of electronic power steering gear-mount pad combination.
The opening force of the electric power steering gear-mounting seat combination is also a very critical performance evaluation factor, during detection, locking and opening can be usually performed continuously, when the opening force is detected by completely relying on the structural arrangement of the detection mechanism, as shown in fig. 3 and 4, only one draw hook 44 which can be matched with the push-pull meter contact to clamp the tubular column handle 11 is required to be detachably mounted on the push-pull meter contact 411, and at the moment, the tubular column handle 11 is restrained and driven by the draw hook 44 due to the existence of the draw hook.
Specifically, the process of detecting the locking force and the opening force by the detection mechanism is as follows: fig. 2 shows the continuous process, the initial state of the electric power steering gear-mounting seat combination is a free state, the force application handle 7 is manually pressed down, the rotary cantilever 51 rotates clockwise from the side face of the steering column to the detection mechanism, the sensor 6 senses the position of the rotary cantilever 51 before rotating to the locking end point, at this time, the sensor 6 sends a signal to the push-pull force gauge 41, the push-pull force gauge 41 records the value at this time, and the recorded value is the locking force value. Thereafter, the force application handle 7 is manually lifted to rotate the rotary cantilever 51 back along the original path, and the push-pull force gauge 41 records a maximum value, namely an opening force value, during the rotation. Of course, when the locking force is detected independently, the pulling hook 44 is not required to be installed, and the push-pull meter contact 411 directly drives the pipe column handle 11 to be pushed down.
The detection mechanism can also be used for detecting whether the holding force reaches the standard or not, and only the thruster 9 is arranged below the free end of the core rod 2, as shown in fig. 5, the push rod of the thruster 9 can apply lifting force to the core rod 2, and the thruster is provided with a stroke sensor capable of monitoring stroke information of the push rod and an alarm device in signal connection with the stroke sensor. The thruster sets a limit force value in advance according to the model of the electric power steering gear-mounting seat combination, when the thruster push rod pushes the end of the core rod to move upwards, the thruster controls the push rod to work within the limit force value range, when the limit force value is reached, if the stroke sensor senses that the push rod still has displacement, the retention force of the electric power steering gear-mounting seat combination is insufficient, the detected product does not reach the standard, the alarm device sends an alarm signal, an operator knows that the alarm signal indicates that the product is a defective product, if the limit force value is reached, the stroke sensor does not sense (namely, the push rod does not displace at the moment), and the detected product reaches the standard.
In addition, the mounting bottom plate 31 of the test seat is further provided with a second horizontal guide rail 37 perpendicular to the axis of the core rod at the position where the thruster 9 is arranged, the bottom of the thruster 9 is provided with a sliding block matched with the second horizontal guide rail 37, the thruster can slide along the second horizontal guide rail, the thruster is slid far away from the core rod, the core rod loses the support of the thruster, at the moment, an operator can judge whether the core rod is in a horizontal state through visual inspection, and the judgment can provide a reference for the adjustment of the hinged end of the core rod and the support piece.
The detection mechanism has been verified by a large number of tests, the products tested by the detection mechanism are matched with automobiles in batches, the detection result is accurate, the operation is simple and convenient, and the detection mechanism is suitable for being widely popularized.
It is apparent that the above examples are only examples for clearly illustrating the technical solution of the present invention, and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (10)
1. The electric power steering device-mounting seat combined force detection mechanism is characterized by comprising a test seat and a core rod for sleeving a steering column in the electric power steering device-mounting seat combination, wherein one end of the core rod is hinged on the test seat, the other end of the core rod is supported by a supporting piece to keep the core rod horizontal, and an anti-rotation positioning piece is arranged on the core rod to prevent the steering column from rotating relative to the core rod; the side of the handle of the steering column is provided with a push-pull force meter, a contact of the push-pull force meter faces the surface of the handle of the column, the push-pull force meter is arranged at the end part of a rotary cantilever which can rotate around a fixed point through a fixed structure, a sensor is arranged in the rotary path of the rotary cantilever and used for sensing the position of the rotary cantilever, and the sensor is in signal connection with the push-pull force meter.
2. The electric power steering apparatus-mount combination force detection mechanism of claim 1, further comprising a force application handle that drives the rotary cantilever to rotate, the force application handle being coupled to a fixed structure on which the push-pull gauge is mounted, the force application handle being disposed proximate to the push-pull gauge contact.
3. The electric power steering apparatus-mount combination force detection mechanism according to claim 1, wherein the rotation preventing positioning member comprises a disk protruding from the outer periphery of the core rod and a positioning pin provided on an end surface of the disk, a mount base plate of the steering column is fitted to the end surface of the disk, and the positioning pin is inserted into a mounting hole provided in the mount base plate.
4. The electric power steering apparatus-mounting base combined force detection mechanism as set forth in claim 1, wherein the support member includes a support column disposed on the test base and abutting against the bottom surface of the butterfly plate at two butterfly plate positions of the steering column, and further includes two telescopic cylinders disposed on the test base, wherein the telescopic actuating ends of the two telescopic cylinders are hinged with a pressing plate, the middle section of the pressing plate is hinged with a connecting rod, the other end of the connecting rod is hinged to a fixed point, and the two pressing plates can respectively press the top surface of the butterfly plate when the telescopic actuating ends of the two telescopic cylinders extend.
5. The electric power steering apparatus-mount combination force detection mechanism according to claim 4, wherein the push-pull gauge contact is detachably provided with a drag hook which can be engaged with the push-pull gauge contact to clamp the handle of the pipe string.
6. The electric power steering apparatus-mounting base combined force detecting mechanism according to claim 1, wherein the rotation fixed point of the rotary cantilever is connected with a rotary shaft, the rotary shaft penetrates through a bearing seat with a fixed position, and a bearing is sleeved on a shaft section of the rotary shaft in the bearing seat for flexible rotation of the rotary shaft.
7. The electric power steering apparatus-mounting base combined force detection mechanism according to claim 6, wherein the force detection mechanism further comprises a tray for bearing the bearing base, the test base is further provided with a first horizontal guide rail perpendicular to the axis of the core rod, the bottom of the tray is provided with a sliding block matched with the first horizontal guide rail, and the tray can drive the bearing base to slide along the first horizontal guide rail.
8. The electric power steering apparatus-mount combination force detection mechanism according to claim 7, wherein the sensor mount ring is provided on the tray, and the sensor is mounted on the sensor mount ring.
9. The electric power steering apparatus-mounting base combined force detection mechanism according to claim 4, wherein a thruster is further arranged below the free end of the core rod, a push rod of the thruster can apply lifting force to the core rod, a stroke sensor and an alarm device are arranged on the thruster, the stroke sensor can monitor stroke information of the push rod, and the stroke sensor is in signal connection with the alarm device.
10. The electric power steering apparatus-mount combination force detection mechanism according to claim 9, wherein the test bed is provided with a second horizontal rail perpendicular to the axis of the core rod at a position where the thruster is provided, the bottom of the thruster is provided with a slider adapted to the second horizontal rail, and the thruster is slidable along the second horizontal rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811487997.2A CN109655296B (en) | 2018-12-06 | 2018-12-06 | Electric power steering gear-mounting seat combined force detection mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811487997.2A CN109655296B (en) | 2018-12-06 | 2018-12-06 | Electric power steering gear-mounting seat combined force detection mechanism |
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| Publication Number | Publication Date |
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| CN109655296A CN109655296A (en) | 2019-04-19 |
| CN109655296B true CN109655296B (en) | 2023-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811487997.2A Active CN109655296B (en) | 2018-12-06 | 2018-12-06 | Electric power steering gear-mounting seat combined force detection mechanism |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110319967A (en) * | 2019-07-11 | 2019-10-11 | 吉林瑞铭机电设备有限公司 | A kind of EPS handle power automatic detecting machine |
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| CN108827662A (en) * | 2018-08-03 | 2018-11-16 | 合肥百川自动化科技有限公司 | A kind of automobile turning pipe pillar assembly comprehensive performance testing agency |
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2018
- 2018-12-06 CN CN201811487997.2A patent/CN109655296B/en active Active
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| US5321628A (en) * | 1990-07-23 | 1994-06-14 | Illinois Tool Works Inc. | Process and apparatus for selecting tires to reduce steering pull and tire set selected using same |
| CN101256118A (en) * | 2007-11-16 | 2008-09-03 | 江苏大学 | Test approach for experimental investigation of vehicle electric power-assisted steering system |
| CN102661869A (en) * | 2012-04-18 | 2012-09-12 | 清华大学 | Method for measuring rotational inertia and damping parameter of steering control mechanism of automobile |
| CN103308324A (en) * | 2013-06-25 | 2013-09-18 | 吉林大学 | Intelligent comprehensive performance detection system for vehicle |
| JP2015132508A (en) * | 2014-01-10 | 2015-07-23 | Ntn株式会社 | Testing machine, and testing method, for steering device |
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| CN109655296A (en) | 2019-04-19 |
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