KR101187801B1 - Ring gear test apparatus and method for vehicle - Google Patents
Ring gear test apparatus and method for vehicle Download PDFInfo
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- KR101187801B1 KR101187801B1 KR20100031646A KR20100031646A KR101187801B1 KR 101187801 B1 KR101187801 B1 KR 101187801B1 KR 20100031646 A KR20100031646 A KR 20100031646A KR 20100031646 A KR20100031646 A KR 20100031646A KR 101187801 B1 KR101187801 B1 KR 101187801B1
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Abstract
The present invention relates to a ring gear testing apparatus and method for a vehicle, comprising: a start motor that is supplied with power and generates rotational power, a ring gear driven by the rotational power generated by the start motor and rotating the main shaft, Load generating means for generating a load that interferes with rotation, sensing means for detecting the torque and the number of revolutions of the ring gear is mounted to the main shaft and changed by the load generated in the load generating means and the sensing means And a torque control unit for controlling the load generating means based on the torque and the rotation speed of the ring gear.
By using the vehicle ring gear test apparatus and method as described above, the present invention provides a load generating means for generating the same load as the actual engine, a torque generating means for generating torque when starting the engine, and an initialization means for initializing the position of the main shaft. The wear and durability of the ring gear can be accurately tested by using.
Description
The present invention relates to a vehicle ring gear test apparatus and method, and more particularly to a vehicle ring gear test apparatus and method for testing the performance of the developed ring gear under the same driving conditions as the actual engine.
In general, in order to prevent problems or dangers caused by accurately determining the performance, durability, and driving performance of a vehicle, not only the development stage of each device but also various test apparatuses are used even after the development of a new vehicle. Car test run.
In order to test the function and durability of each part of the vehicle, various types of test apparatus (hereinafter referred to as 'dynamometer') have been developed.
The dynamometer will test the engine, transmission and other peripherals under the same conditions as the vehicle's driving conditions in accordance with the automatic driving program.
In particular, when developing a ring gear to be attached to an engine that is not commercialized when developing an engine of a vehicle, a dynamometer that reproduces the engine load is an essential element.
On the other hand, since it is difficult to accurately reproduce the load change occurring within a short time in the engine when the ring gear is developed and the engine is started by a dynamometer, the engine is assembled after the ring gear developed in the actual engine is assembled. The performance of the ring gear was tested by mounting and driving it on a dynamometer.
The test apparatus and method for testing ring gear performance according to the prior art require the work of mounting a dynamometer on a real engine in which a ring gear is assembled, and thus, the manufacturing process of the test apparatus is complicated. There is a problem in that the cost of manufacturing the device increases.
In addition, the ring gear test apparatus and method according to the related art have a problem in that the performance of the ring gear cannot be accurately tested because the performance test result is incorrectly derived when an error occurs during the assembly of the ring gear and the engine.
The present invention is to solve the above problems, an object of the present invention is to provide a ring gear test apparatus and method for a vehicle that can accurately test the performance of the ring gear under the same conditions as the actual engine.
It is another object of the present invention to change the load and engine torque in one test apparatus, and a ring gear test apparatus and method for a vehicle that can test the performance of a ring gear applied to various engines having different characteristics using one test apparatus. To provide.
According to a feature of the present invention for achieving the object as described above, the present invention is a start motor for generating rotational power by receiving power, a ring gear driven by the rotational power generated from the start motor and rotating the main shaft Load generating means for generating a load that hinders rotation of the main shaft, sensing means for detecting torque and rotational speed of the ring gear mounted to the main shaft and changed by the load generated by the load generating means; And a torque controller for controlling the load generating means based on the torque and the rotation speed of the ring gear sensed by the sensing means.
The present invention is characterized in that it further comprises a torque generating means for generating a torque corresponding to the engine torque during actual engine driving to the main shaft.
The torque generating means is an overrun motor that receives power when the start motor is driven to generate rotational power and transmits it to the flywheel, and a clutch and the overrun motor to selectively transfer torque generated by the rotation of the flywheel to the main shaft. When the torque generated by the engine torque at the engine start, it characterized in that it comprises an overrun control unit for controlling the clutch to be coupled to the flywheel.
The present invention further comprises initialization means for moving the position of the main shaft to the initial position, the initialization means for generating a position sensor for detecting the position of the main shaft, the rotational power to rotate the main shaft to the initial position And an initialization control unit for controlling the driving of the initialization motor according to the position of the main motor detected by the initialization motor and the position sensor.
The start motor is characterized in that the coupling with the ring gear is released when the clutch of the torque generating unit is coupled to the flywheel and the main shaft.
The load generating means includes a pressure generating unit for generating pneumatic or hydraulic pressure, a pressure adjusting unit for adjusting pneumatic or hydraulic pressure generated from the pressure generating unit based on the control of the torque control unit, and pneumatic or hydraulic pressure adjusted from the pressure adjusting unit. It characterized in that it comprises a brake to operate as a load that interferes with the rotation of the main shaft.
The pressure control unit on / off of the servo valve and the control signal output from the torque control unit the opening and closing amount is adjusted to adjust the pneumatic or hydraulic pressure generated from the pressure generating unit based on the voltage level of the control signal output from the torque control unit And a release valve for opening and closing to selectively release the pressure regulated by the servovalve based on whether or not.
The load generating means may include a brake disc integrally formed on the main shaft, a housing surrounding the outside of the brake disc, magnetic force generating means for generating a magnetic force based on a voltage level of a control signal output from the torque control unit, and the housing. It is characterized in that it comprises a magnetorheological fluid which is filled between the brake disk and the load, and generates a load to prevent rotation of the brake disk by the magnetic force generated from the magnetic force generating means.
The sensing means may include a torque cell for detecting torque generated during the rotational movement of the ring gear and a rotation sensor for sensing the number of rotations of the main shaft.
According to another feature of the invention, the present invention (a) driving the start motor to drive the main shaft via a ring gear, (b) detects the rotational speed and torque of the main shaft, and the detected rotational speed and Generating a load that hinders rotation of the main shaft based on the torque, (c) driving the overrun motor to engage the main shaft and the flywheel when the rotational torque of the flywheel reaches the engine torque to start the engine; (d) initializing the main shaft to an initial position when the rotation of the main shaft ends.
In step (b), (b1) driving the start motor with battery power applied while the servo valve and the release valve are turned off, and (b2) comparing whether the start time of the start motor is within a preset torque control time. And (b3) when the driving time is within the torque adjustment time, detecting the rotation speed and torque of the main shaft and controlling the brake of the load generating means based on the detected rotation speed and torque. Characterized in that it comprises a step.
The step (b3) is to compare whether the detected torque is a reference torque calculated by substituting Equation 1 or Equation 2 below. When the detected torque is greater than the reference torque, Controlling the input voltage of the servovalve according to the torque curve, controlling the release valve to the off state, and if the sensed torque is less than the reference torque as a result of the comparison, controlling the release valve to the on state, And setting and controlling the input voltage of the servovalve to correspond to the maximum set value.
If N <6,
If N≥6
At this time, N = cylinder of four stroke engine.
In the step (b), (b4) driving the start motor by receiving battery power while the magnetic force generating means for generating the magnetic force is turned off, and (b5) whether the driving time of the start motor is within a preset torque adjustment time (B6) when the driving time is within the torque adjustment time, detecting the rotation speed and torque of the main shaft, and generating magnetic force in the magnetic force generating means based on the detected rotation speed and torque. And (b7) generating a load such that the magnetorheological fluid is changed from the liquid state to the solid state by the generated magnetic force, thereby preventing rotation of the brake disc integrally formed on the main shaft. .
(C) step (c1) off the clutch to release the coupling of the main shaft and the flywheel, (c2) driving the overrun motor to rotate the flywheel, (c3) the rotational speed of the flywheel When the engine reaches a target speed capable of starting the engine, by coupling the main shaft and the flywheel by operating the clutch (c4) characterized in that it comprises the step of stopping the driving of the overrun motor.
In the step (c3), the coupling between the ring gear and the start motor is released by the on-operation of the clutch.
The target speed is set using the moment of inertia of the flywheel calculated by Equation 3 below.
Where J 1 = moment of inertia of the main shaft,
J 2 = moment of inertia of the flywheel,
ω 1 = rotational speed of the main shaft by the start motor before engine start,
ω 2 = rotational speed of main shaft and flywheel after engine start,
ω 3 = rotational speed of the flywheel before engine start.
The clutch may be selected such that the time required for instantaneous torque transmission during contact between the flywheel and the main shaft has a value within a value calculated by Equation 4 below.
Δt = instantaneous torque transfer time
J 1 = moment of inertia of the main shaft,
J 2 = moment of inertia of the flywheel,
ω 1 = rotational speed of the main shaft by the start motor before engine start,
ω 2 = rotational speed of main shaft and flywheel after engine start,
TC max = maximum torque of the clutch.
In the step (d), when the rotation of the main shaft by the inertia of the flywheel is terminated in the step (c), detecting the display position of the main shaft, and comparing the detected display position with a preset initial position. And driving the initialization motor based on the comparison result to move the position of the main shaft to an initial position.
The initial position is characterized in that it is calculated by substituting the following equation (5).
Where θ i = initial position angle (rad) for each cycle,
N = number of cylinders in a four-stroke engine,
k = the current number of cycles.
As described above, the present invention uses the load generating means for generating the same load as the actual engine, the torque generating means for generating the torque when starting the engine and the initialization means for initializing the position of the main shaft to reduce the wear and durability of the ring gear. Can be tested accurately
Accordingly, in the present invention, by testing the ring gear by using an engine dynamometer composed of a motor and a control unit instead of an actual engine, it is possible to reduce the manufacturing cost of the ring gear test apparatus and the cost required for the ring gear test.
And the present invention can calculate the moment of inertia of the flywheel using the kinetic energy before and after the engine start, and calculate the instantaneous torque transfer time when the flywheel and the main shaft in contact can determine the specification of the clutch.
In addition, the present invention can implement the driving conditions of a variety of engines having different characteristics by changing the set value, such as the reference torque, the target speed set in the control unit, the engine having a variety of characteristics using the developed test ring gear It can be applied to the test to obtain the effect.
1 is a block diagram of a ring gear test apparatus for a vehicle according to an embodiment of the present invention.
Figure 2 is a perspective view of the vehicle ring gear test apparatus shown in FIG.
Figure 3 is a perspective view of the vehicle ring gear tester of Figure 2 shown from another angle.
4 is a graph showing a torque curve generated when the engine is started.
5 is a flowchart for explaining the operation of a load generation section;
6 is a graph according to the operation of FIG.
7 is a flowchart illustrating the operation of the engine start section.
8 is an operational state diagram illustrating an operation of the engine start section of FIG.
9 is a flowchart for explaining the operation of the initialization section.
10 is a cross-sectional view of the load generating means applied to the ring gear test apparatus for a vehicle according to another embodiment of the present invention.
Hereinafter, a vehicle ring gear test apparatus and method according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
In the present invention, by developing a ring gear before the development of the actual engine to test the ring gear developed under the same conditions as the actual engine tens of thousands to hundreds of thousands of times to configure the vehicle ring gear test device for testing the performance, such as durability, wear do.
1 is a block diagram of a vehicle ring gear test apparatus according to a preferred embodiment of the present invention, Figure 2 is a perspective view of the vehicle ring gear test apparatus shown in Figure 1, Figure 3 is a ring gear test apparatus of Figure 2 Perspective view from different angles.
As shown in FIG. 1, the vehicle ring
The
The
When the
As shown in FIG. 2, the
In the present invention, the start and stop operations are repeated tens of thousands to hundreds of thousands of times in the same condition as the driving conditions when starting the engine to test the wear degree, durability, and the like of the
The load generating means 14 includes a
The
The
The pressure controller sets the
The
The sensing means 15 is a
The
On the other hand, the torque generated during the ignition key on operation in the actual engine is as shown in FIG.
4 is a graph illustrating a torque curve generated when the engine is started.
As shown in Fig. 4, the torque curve is a load generation section A in which the rotational power generated from the
This torque curve is equally applied to the vehicle ring gear test apparatus according to the present invention.
In detail, in the load generation section A, the torque curve appears as a cosine curve as the rotational power generated from the
For example, in the case of a four-stroke N-cylinder engine, since two compressions of N turns occur, the period of the torque curve is 4π / N.
Therefore, the torque curve is defined by Equation 1 below.
Where T = current torque transmitted to the ring gear by the start motor,
T max = the maximum torque of the torque transmitted to the ring gear by the start motor,
N = number of cylinders in a four-stroke engine,
θ = angle of rotation of the main shaft.
Accordingly, the
For example, the
As a result of the comparison, if the detected torque is greater than the reference torque, the
On the other hand, if the detected torque is less than the reference torque, the
In the engine start section B, the
Accordingly, the torque curve sensed by the
Subsequently, in the initialization section C, the torque curve maintains a value of '0'.
Torque generating means 20 is a clutch for selectively coupling the
As shown in FIG. 3, a rotation gear of the
The clutch 22 is initially driven in a state where the driven gear or the belt pulley of the
The
The initialization means 30 is a
As shown in FIG. 3, the rotation shaft of the
In the present embodiment, the vehicle ring
That is, the
Hereinafter, a vehicle ring gear test method according to a preferred embodiment of the present invention will be described in detail.
In the vehicle ring gear test method according to a preferred embodiment of the present invention, after driving the
An operation of each section will be described in detail with reference to FIGS. 5 to 8.
FIG. 5 is a flowchart illustrating the operation of the load generation section, FIG. 6 is a graph according to the operation of FIG. 5, FIG. 7 is a flowchart illustrating the operation of the engine start section, and FIG. 8 illustrates the operation of the initialization section. It is a flow chart.
First, the operation of the load generation section will be described in detail with reference to FIG. 5.
As shown in FIG. 5, when the ignition key or the drive switch is turned on while the
Accordingly, the
Subsequently, the
If the driving time exceeds the torque adjustment time, the flow proceeds to step S10.
On the other hand, when the driving time is within the torque adjustment time, the
To this end, the
If N <6
If N≥6
Where N = number of cylinders of the four-stroke engine,
T max = the maximum torque of the torque transmitted to the ring gear by the start motor,
T r = reference torque.
If the detected torque is greater than the reference torque T r , the
On the other hand, when the sensed torque is smaller than the reference torque, the
As described above, as the sections A1 and A2 are alternately performed in the load generation section A, the torque curve of the load generation section A is a load generated in each cylinder of the general engine as shown in FIG. It is output in the form of cosine curve in the same way as the condition output by.
After performing step S15 or step S16, it is checked whether the number of repetitions is set in advance (S17), and the process proceeds to step S12 until the number of repetitions is repeated, depending on whether the driving time is within the torque adjustment time. Optionally repeat step S16.
Next, the operation of the engine start section will be described in detail with reference to FIG. 7.
As shown in FIG. 7, in the state in which the clutch 22 is turned off to release engagement of the
Subsequently, the
Accordingly, when the rotation speed of the
When the rotational speed of the
At this time, the coupling between the
As such, the present invention transmits torque at engine start to the main shaft using a load generating means.
FIG. 8 is an operation state diagram for describing the operation of the engine start section shown in FIG. 7.
The sum of the kinetic energy of the
This can be summarized as Equation 4 below.
Where J 1 = moment of inertia of the main shaft,
J 2 = moment of inertia of the flywheel,
ω 1 = rotational speed of the main shaft by the start motor before engine start,
ω 2 = rotational speed of main shaft and flywheel after engine start,
ω 3 = rotational speed of the flywheel before engine start.
Therefore, in order to implement the same as the actual engine starting conditions, the moment of inertia of the
Therefore, the target speed is preferably set using the moment of inertia J 2 of the
In addition, the maximum torque TC max of the clutch is defined as in Equation 6 below.
Therefore, the clutch 22 applied to the ring
Subsequently, the overrun control unit S23 controls to stop the driving of the
Next, the operation of the initialization section will be described in detail with reference to FIG. 9.
When the rotation of the
The
Where θ i = initial position angle (rad) for each cycle,
N = number of cylinders in a four-stroke engine,
k = the current number of cycles.
If the detected position is not the initial position, the
On the other hand, when the detected position is the initial position, the
Then, the
The scope of the present invention is not limited to the embodiments described above, but is defined by the claims, and various changes and modifications can be made by those skilled in the art within the scope of the claims. It is self evident.
In the above embodiment, the load generating means has been described as having a pressure generating unit using a compressor for generating pneumatic or a pump for generating hydraulic pressure, but the present invention is not necessarily limited thereto.
That is, the load generating means applied to the ring gear test apparatus for a vehicle according to another embodiment of the present invention may be changed to use a magnetorheological fluid whose state changes from a liquid state to a solid state by magnetic force.
For example, Figure 10 is a cross-sectional view of the load generating means applied to the ring gear test apparatus for a vehicle according to another embodiment of the present invention.
In detail, as shown in FIG. 10, the load generating means 14 ′ includes a
The magnetic force generating means 148 is a coil wound and installed a plurality of times inside the
Thus, the magnetic force generating means 148 of the load generating means 14 ′ applied to another embodiment of the present invention generates a magnetic force according to the voltage level of the control signal output from the
Then, the
Accordingly, the vehicle ring gear test apparatus according to another embodiment of the present invention can generate the same load as the actual engine using the magnetorheological fluid provided in the load generating means.
10: Vehicle ring gear tester 11: Start motor
12: main shaft 13: ring gear
14,14 ': load generating means 141: brake
142: pressure generating unit 143: servo valve
144: release valve 145: brake disc
146: housing 147: magnetorheological fluid
148: magnetic force generating means 15: sensing means
151: torque cell 152: rotation detection sensor
16: torque control unit 17: flywheel
18: support 19: battery
20: torque generating means 21: overrun motor
22: clutch 23: overrun control unit
24, 34: belt 30: initialization means
31: position sensor 32: initialization motor
33: initialization control unit
Claims (19)
A ring gear driven by the rotational power generated by the start motor and rotating the main shaft,
Load generating means for generating a load that hinders rotation of the main shaft;
Sensing means mounted on the main shaft to sense torque and rotational speed of the ring gear which are changed by the load generated by the load generating means;
A torque controller which controls the load generating means based on the torque and the rotation speed of the ring gear detected from the sensing means;
And initializing means for moving the position of the main shaft to a preset initial position after the engine is started.
The initialization means is a position sensor for detecting the position of the main shaft,
An initialization motor generating rotational power to rotate the main shaft to an initial position;
And an initialization control unit for controlling the driving of the initialization motor according to the position of the main shaft detected by the position sensor.
And a torque generating means for generating a torque corresponding to engine torque during actual engine driving and transmitting the torque to the main shaft.
An overrun motor that receives power when driving the start motor and generates rotational power and transmits the flywheel to a flywheel;
A clutch for selectively transmitting torque generated by rotation of the flywheel to the main shaft;
And an overrun control unit for controlling the clutch to be coupled to the flywheel when the torque generated by the overrun motor becomes the engine torque when the engine is started.
When the clutch of the torque generating means is coupled to the flywheel and the main shaft, the ring gear testing apparatus for a vehicle, characterized in that the engagement with the ring gear is released.
Pressure generating unit for generating pneumatic or hydraulic pressure,
A pressure regulator which adjusts pneumatic pressure or hydraulic pressure generated from the pressure generator based on the control of the torque controller;
And a brake that operates as a load that prevents rotation of the main shaft by using pneumatic or hydraulic pressure adjusted from the pressure regulating unit.
A servo valve whose opening / closing amount is adjusted to adjust pneumatic or hydraulic pressure generated from the pressure generating unit based on a voltage level of a control signal output from the torque control unit;
And a release valve for opening and closing to selectively release the pressure adjusted by the servovalve based on whether the control signal output from the torque control unit is on or off.
A brake disc integrally formed with the main shaft,
A housing surrounding the outside of the brake disc,
Magnetic force generating means for generating a magnetic force based on the voltage level of the control signal output from the torque control unit;
And a magnetorheological fluid filled between the interior of the housing and the brake disc and generating a load so as to prevent rotation of the brake disc by a magnetic force generated from the magnetic force generating means.
Torque cell for detecting the torque generated during the rotational movement of the ring gear
Ring gear test apparatus for a vehicle, characterized in that it comprises a rotation sensor for sensing the rotational speed of the main shaft.
(b) sensing means for detecting the rotational speed and torque of the main shaft, and the torque control unit controlling the load generating means based on the detected rotational speed and torque to generate a load that interferes with the rotation of the main shaft,
(c) when the rotational torque of the flywheel reaches the engine torque for starting the engine by driving the overrun motor, coupling the main shaft and the flywheel by operating the clutch;
(d) when the rotation of the main shaft is completed, the initialization control unit comprises a step of initializing the main shaft to the initial position by driving the initialization motor vehicle ring gear test method.
(b1) driving the start motor by receiving battery power in the off state of the servovalve and the release valve;
(b2) comparing, by the torque control unit, whether the driving time of the start motor is within a preset torque adjustment time; and
(b3) As a result of the comparison, when the driving time is within the torque adjustment time, the sensing means detects the rotation speed and torque of the main shaft, and the torque control unit determines the load generation means based on the detected rotation speed and torque. A vehicle ring gear test method comprising the step of controlling to drive the brake.
Comparing the detected torque with a reference torque calculated by substituting Equation 1 or Equation 2 below;
As a result of the comparison, when the sensed torque is greater than the reference torque, controlling the input voltage of the servo valve according to the torque curve of the actual engine, and controlling the release valve to be in an off state;
As a result of the comparison, when the sensed torque is less than the reference torque, the torque control unit controls the release valve to be in an on state, and sets and controls the input voltage of the servovalve consistently to correspond to the maximum set value. Vehicle ring gear test method comprising a.
If N <6,
If N≥6
Where N = number of cylinders of the four-stroke engine,
T max = the maximum torque of the torque transmitted to the ring gear by the start motor,
T r = reference torque.
(b4) a step in which the start motor is driven by receiving battery power in the off state of the magnetic force generating means generating magnetic force;
(b5) comparing, by the torque control unit, whether the driving time of the start motor is within a preset torque adjustment time; and
(b6) as a result of the comparison, when the driving time is within the torque adjustment time, the sensing means detects the rotation speed and torque of the main shaft, and the magnetic force generating means generates the magnetic force based on the detected rotation speed and torque. Steps and
(b7) the load generating means generates a load so that the magnetorheological fluid is changed from the liquid state to the solid state by the generated magnetic force, thereby preventing rotation of the brake disc integrally formed on the main shaft. Vehicle ring gear test method.
(c1) the clutch is turned off to release the coupling between the main shaft and the flywheel under the control of an overrun control unit;
(c2) driving the overrun motor to rotate the flywheel;
(c3) when the rotational speed of the flywheel reaches a target speed at which the engine can be started, coupling the main shaft and the flywheel by turning on the clutch;
(c4) a vehicle ring gear test method comprising the step of stopping the driving of the overrun motor.
And the ring gear and the start motor are released when the clutch is turned on.
Ring gear test method for a vehicle, characterized in that it is set using the moment of inertia of the flywheel calculated by the following equation (3).
Where J 1 = moment of inertia of the main shaft,
J 2 = moment of inertia of the flywheel,
ω 1 = rotational speed of the main shaft by the start motor before engine start,
ω 2 = rotational speed of main shaft and flywheel after engine start,
ω 3 = rotational speed of the flywheel before engine start.
Vehicle instantaneous ring gear test method characterized in that the instantaneous torque transmission time required when the flywheel and the main shaft contact the value within the value calculated by the following equation (4).
Δt = instantaneous torque transfer time
J 1 = moment of inertia of the main shaft,
J 2 = moment of inertia of the flywheel,
ω 1 = rotational speed of the main shaft by the start motor before engine start,
ω 2 = rotational speed of main shaft and flywheel after engine start,
TC max = maximum torque of the clutch.
Sensing the display position of the main shaft when the rotation of the main shaft by the inertia of the flywheel is finished;
Comparing the detected display position with a preset initial position; and
And driving the initialization motor based on the comparison result to move the position of the main shaft to an initial position.
Vehicle ring gear test method, characterized in that calculated by substituting Equation 5.
Where θ i = initial position angle (rad) for each cycle,
N = number of cylinders in a four-stroke engine,
k = the current number of cycles.
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| KR20100031646A KR101187801B1 (en) | 2010-04-07 | 2010-04-07 | Ring gear test apparatus and method for vehicle |
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| KR20100031646A KR101187801B1 (en) | 2010-04-07 | 2010-04-07 | Ring gear test apparatus and method for vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033361A (en) * | 2012-12-20 | 2013-04-10 | 綦江齿轮传动有限公司 | Automobile gearbox synchronizer testing device |
| CN104316322A (en) * | 2014-11-03 | 2015-01-28 | 中航工业南航（深圳）测控技术有限公司 | Method and device for detecting distortion degree of flexible shaft with load |
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| CN102494892A (en) * | 2011-12-13 | 2012-06-13 | 潍坊帅克机械有限责任公司 | Comprehensive experiment table for performance parameters of harmonic reducer of robot |
| KR101359027B1 (en) * | 2012-05-15 | 2014-02-07 | 한국기계연구원 | Rotating machine test mechine having variable load |
| KR101426599B1 (en) * | 2012-08-28 | 2014-08-05 | 현대중공업 주식회사 | Rotation device for checking crank shaft of marine engine |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100791632B1 (en) * | 2006-07-18 | 2008-01-04 | 고려대학교 산학협력단 | Apparatus for testing performance of brake pad of car |
-
2010
- 2010-04-07 KR KR20100031646A patent/KR101187801B1/en not_active IP Right Cessation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100791632B1 (en) * | 2006-07-18 | 2008-01-04 | 고려대학교 산학협력단 | Apparatus for testing performance of brake pad of car |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033361A (en) * | 2012-12-20 | 2013-04-10 | 綦江齿轮传动有限公司 | Automobile gearbox synchronizer testing device |
| CN103033361B (en) * | 2012-12-20 | 2015-09-23 | 綦江齿轮传动有限公司 | The test unit of synchronizer of automobile transmission |
| CN104316322A (en) * | 2014-11-03 | 2015-01-28 | 中航工业南航（深圳）测控技术有限公司 | Method and device for detecting distortion degree of flexible shaft with load |
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| Publication number | Publication date |
|---|---|
| KR20110112509A (en) | 2011-10-13 |
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