JP2012215573A - Test board and method for determining latent failed state - Google Patents

Test board and method for determining latent failed state Download PDF

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JP2012215573A
JP2012215573A JP2012068888A JP2012068888A JP2012215573A JP 2012215573 A JP2012215573 A JP 2012215573A JP 2012068888 A JP2012068888 A JP 2012068888A JP 2012068888 A JP2012068888 A JP 2012068888A JP 2012215573 A JP2012215573 A JP 2012215573A
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container
test
liquid medium
automatic
acceleration value
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Gickeleiter Michael
ギッケルアイター ミヒャエル
Kramer Thomas
クレーメル トーマス
Eifrig Christian
アイフリヒ クリスティアン
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Dr Ing HCF Porsche AG
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Dr Ing HCF Porsche AG
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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
    • G01M13/00—Testing of machine parts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/02—Gearings; Transmission mechanisms
    • G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/02—Gearings; Transmission mechanisms
    • G01M13/027—Test-benches with force-applying means, e.g. loading of drive shafts along several directions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/02—Details or accessories of testing apparatus
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/04—Testing internal-combustion engines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/04—Testing internal-combustion engines
    • G01M15/09—Testing internal-combustion engines by monitoring pressure in fluid ducts, e.g. in lubrication or cooling parts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • 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
    • G01M99/004—Testing the effects of speed or acceleration

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Testing Of Engines (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a test board and a method for determining latent failed states.SOLUTION: This invention is concerned with the test board and the method for determining latent failed states of a drive mechanism having an automatic operation unit (2). The automatic operation unit (2) is capable of moving a container (5) by previously defined operation sequence and extracting a liquid medium from the container (5) during a test process in accordance with a request, and extraction following the request is embodied by an adjustment device (6) for conveying the liquid medium in accordance with previously defined condition.

Description

本発明は、自動動作ユニットを有する、駆動機構の潜在的な不具合状況を確定する試験台および方法に関する。   The present invention relates to a test bench and method for determining a potential malfunction situation of a drive mechanism having an automatic operating unit.

大量生産される車両の場合、ただし特にモータースポーツで使用される車両の場合、極限状態下で駆動エンジンを試験することが必要である。さらに、モータースポーツで使用される車両の場合、たとえばオイルまたはガソリン等、搬送される動作媒体が、最終的に消費される量でのみ搬送されることが、重量の理由で望ましい。特に、オイルタンク内のオイル充填量が低減した場合、テストトラックまたはレーストラックにおける車両の高速度、加速または傾斜姿勢により、空気が導入される可能性があり、それによって、概して駆動機構に損傷がもたらされる。したがって、従来のドライブトレイン試験台においてこうした潜在的な不具合状況をシミュレートする試みがなされてきたが、ここでもまた駆動機構に対する損傷の危険がある。   For vehicles that are mass-produced, but especially for vehicles used in motor sports, it is necessary to test the drive engine under extreme conditions. Furthermore, in the case of vehicles used in motor sports, it is desirable for weight reasons that the working medium to be transported, such as oil or gasoline, is transported only in the amount that is ultimately consumed. In particular, if the oil charge in the oil tank is reduced, air can be introduced due to the high speed, acceleration or tilting posture of the vehicle on the test track or race track, thereby generally damaging the drive mechanism. Brought about. Thus, attempts have been made to simulate such potential failure situations in conventional drivetrain test benches, but again there is a risk of damage to the drive mechanism.

下記特許文献１は、駆動機構を含む完成した車両を試験することができるローラ試験台を記載している。ローラの励振は、実際のテストトラックにおける実際の試験運転中に記録されて試験台コントローラに転送される測定値に基づいて行われる。この場合もまた、オイルレベルが低い場合に、制御されない空気の導入が発生する。   The following Patent Document 1 describes a roller test stand that can test a completed vehicle including a drive mechanism. Roller excitation is based on measurements that are recorded and transferred to the test bench controller during actual test operation on the actual test track. Again, uncontrolled introduction of air occurs when the oil level is low.

下記特許文献２は、単に、６自由度で動作可能なキャリッジによって、車両内の試験者にいかに動きの印象を与えることができるかを提示している。車両に対し、下記特許文献３から、オイルレベルが低い場合に、車両が傾斜姿勢にある場合であっても、内燃機関に対し給油装置によってオイルを確実に供給することができることがさらに知られている。   Japanese Patent Application Laid-Open Publication No. 2004-228561 simply shows how an impression of movement can be given to a tester in a vehicle by a carriage that can be operated with six degrees of freedom. From Patent Document 3 below, it is further known that oil can be reliably supplied to an internal combustion engine by an oil supply device even when the vehicle is in an inclined posture when the oil level is low. Yes.

最後に、下記特許文献４は、自動車の製造システムに組み込まれるロボットを開示しており、このロボットは、自動車のタンクの燃料センサと、前記自動車のタンクの漏れ気密性とを、ロボットアームの動作によって試験する。   Finally, the following Patent Document 4 discloses a robot incorporated in a vehicle manufacturing system, which includes a fuel sensor for a tank of a vehicle and leakage tightness of the tank for the vehicle. Test by.

欧州特許出願公開第２ ２４６ ６８６Ａ１号明細書European Patent Application Publication No. 2 246 686 A1 独国特許出願公開第１０ ２００４ ０４５ １２５Ａ１号明細書German Patent Application Publication No. 10 2004 045 125A1 独国特許出願公開第２７ ０１ ９３９Ａ１号明細書German Patent Application Publication No. 27 01 939A1 独国特許出願公開第１０７ ０７ ０２２Ａ１号明細書German Patent Application Publication No. 107 07 022A1 独国特許出願公開第１０ ２００６ ０２６ ４０８Ａ１号明細書German Patent Application Publication No. 10 2006 026 408 A1 米国特許第７ ０３６ ３６０Ｂ１号明細書U.S. Pat. No. 7,036,360B1

これを出発点とすると、本発明の目的は、エンジンに対する損傷がないようにするために、液体媒体で充填された容器、特にオイルタンクの極限の装填からもたらされる潜在的な不具合状況を特定することができる、試験台および方法を提供することである。   With this as a starting point, the object of the present invention is to identify potential failure situations resulting from extreme loading of containers filled with liquid media, in particular oil tanks, so that there is no damage to the engine. It is to provide a test bench and method that can.

この目的は、本発明に従い、請求項１および請求項５の特徴によって達成される。有利な改良形態は、従属請求項の特徴から明らかになる。   This object is achieved according to the invention by the features of claims 1 and 5. Advantageous refinements emerge from the features of the dependent claims.

本発明の本質は、自動動作ユニット、特に市販の産業ロボットを使用して、容器内の液体媒体のレベルに対する、たとえばテストトラックにおける正確にその容器に作用する力による影響をシミュレートすることにある。同時に、液体媒体の消費が実際のテストトラックにおける消費に対応するように、容器内に収容されている媒体が動作シーケンスに従って抽出される。この目的で、試験台は、事前定義された動作シーケンスで容器を動かす自動動作ユニットを備えている。容器を充填している媒体、たとえばオイルまたはガソリン等の動作媒体は、試験プロセス中に要求に従って抽出される。要求に従う抽出は、事前定義された条件に従って液体媒体を搬送する調整装置によって具現化される。ここで、調整装置を、ドライブトレイン試験台上で実際の内燃機械によって形成してもよい。ここで、要求に従う抽出の事前定義された条件と、自動動作ユニットの定義された動作シーケンスとは、試験運転の現実的な再現またはそのシミュレーションをもたらすように、互いに整合される。潜在的な不具合状況を確定するために、容器と調整装置との間に、体積流量を確定することができる体積流量測定装置が接続されている。体積流量が低下した場合、エンジンに圧力損失があることを推測することができる。さらに、連結ホースの容器と調整装置との間に検査窓を設けることができ、その検査窓により、空気の導入もまた視覚的に特定することができる。   The essence of the invention consists in simulating the influence of the force acting on the container exactly on the level of the liquid medium in the container, for example in a test track, using an automatic movement unit, in particular a commercial industrial robot. . At the same time, the medium contained in the container is extracted according to the operation sequence so that the consumption of the liquid medium corresponds to the consumption in the actual test track. For this purpose, the test bench is equipped with an automatic movement unit that moves the containers in a predefined movement sequence. The medium filling the container, for example a working medium such as oil or gasoline, is extracted as required during the test process. Extraction according to requirements is embodied by a conditioning device that transports the liquid medium according to predefined conditions. Here, the adjusting device may be formed by an actual internal combustion machine on a drive train test bench. Here, the predefined conditions of extraction according to requirements and the defined operating sequence of the automatic operating unit are matched to each other so as to provide a realistic reproduction or simulation of the test run. In order to determine a potential failure situation, a volume flow measuring device capable of determining the volume flow is connected between the container and the adjusting device. If the volumetric flow rate decreases, it can be assumed that there is a pressure loss in the engine. Furthermore, an inspection window can be provided between the container of the connecting hose and the adjusting device, which also allows the introduction of air to be visually identified.

空気の導入がまだ発生していない容器内に収容されているオイルの最低充填量を確定するために、試験プロセスを種々の充填レベルで再現することができる。   The test process can be replicated at various fill levels to determine the minimum fill level of oil contained in a container where air introduction has not yet occurred.

自動動作ユニットの動作シーケンスを、実際の試験運転中に記録されるかまたは車両シミュレーションから生成された測定値から定義することができる。したがって、既知のレーストラックの厳しいコーナーのプロファイルを測定することができ、測定されたデータが試験プロセスに対する基礎としての役割を果たすことができる。   The motion sequence of the automatic motion unit can be defined from measurements recorded during actual test driving or generated from vehicle simulations. Thus, the severe corner profile of a known race track can be measured and the measured data can serve as a basis for the testing process.

測定値は、好ましくは、前後方向加速度値、横方向加速度値および／または垂直加速度値であり、そこから、自動動作ユニットのＸ方向、Ｙ方向および／またはＺ方向の動作変位および／または動作角度を定義することができる。   The measured value is preferably a longitudinal acceleration value, a lateral acceleration value and / or a vertical acceleration value, from which a movement displacement and / or a movement angle in the X, Y and / or Z direction of the automatic movement unit. Can be defined.

試験運転中のオイル消費の現実的な再現のために、調整装置は、容器からオイルを送り出すオイル調整装置であり得る。   For a realistic reproduction of oil consumption during a test run, the regulator can be an oil regulator that delivers oil from the container.

また、本発明により、自動動作ユニットを有し、その自動動作ユニットによって容器が事前定義された動作シーケンスで動かされる、駆動機構の潜在的な不具合状況を確定する方法であって、試験プロセス中に要求に従って容器から液体媒体が抽出され、その要求に従う抽出が、調整装置によって具現化され、調整装置により液体媒体が事前定義された条件に従って搬送される、方法もまた提案される。   Also, according to the present invention, there is provided a method for determining a potential malfunction situation of a drive mechanism having an automatic operation unit, wherein the container is moved in a predefined operation sequence, during the test process. A method is also proposed in which the liquid medium is extracted from the container according to the requirements, the extraction according to the requirements is embodied by the adjusting device and the liquid medium is conveyed according to the predefined conditions by the adjusting device.

試験運転中に記録されるトラックデータを、好ましくは、制御ユニットにおいてロボットアームの動作に変換することができる。   The track data recorded during the test run can preferably be converted into the movement of the robot arm in the control unit.

自動動作ユニットの変位移動を低減するために、容器を、前記運転状況において容器に作用する一定の加速度値に対応する角度位置に配置することができる。それにより、低加速度値および高加速度値の両方を、比較的長期間にわたって再現することができる。   In order to reduce the displacement movement of the automatic movement unit, the container can be arranged at an angular position corresponding to a constant acceleration value acting on the container in the driving situation. Thereby, both the low acceleration value and the high acceleration value can be reproduced over a relatively long period of time.

本発明による試験台の有利な実施形態を、図面に基づいて以下により詳細に説明する。   Advantageous embodiments of the test bench according to the invention are explained in more detail below on the basis of the drawings.

試験台の概略図を示す。The schematic of a test stand is shown.

試験台１は、自動動作ユニット２を備え、これはこの場合、市販のロボット３として設計されている。前記試験台は、そのロボットアーム４にグリッパー（詳細には図示せず）を有しており、それによって、試験対象のオイルタンク５が規定された空間位置に保持される。オイルタンク５は、試験される充填レベルまでオイルで充填されている。さらに、オイルタンク５は、管路８を介して調整装置６に接続されており、調整装置６は、事前に定義された基準に従ってオイルタンク５からオイルを送り出す。ここで、オイルタンク５と調整装置６との間に配置された体積流量測定装置７（流量計）によって、オイルタンク５から吸い出される体積流量および関連する圧力損失が測定される。さらに、体積流量測定装置７の下流に、検査窓９も接続されている。検査窓９により、管路８で搬送されるオイルおよびいかなる空気混入も見ることができる。   The test bench 1 comprises an automatic movement unit 2, which in this case is designed as a commercially available robot 3. The test table has a gripper (not shown in detail) in its robot arm 4, whereby the oil tank 5 to be tested is held in a defined spatial position. The oil tank 5 is filled with oil to the filling level to be tested. Furthermore, the oil tank 5 is connected to the adjustment device 6 via a pipe line 8, and the adjustment device 6 sends out oil from the oil tank 5 according to a predefined standard. Here, a volume flow rate measuring device 7 (flow meter) arranged between the oil tank 5 and the adjusting device 6 measures the volume flow rate sucked out from the oil tank 5 and the associated pressure loss. Further, an inspection window 9 is also connected downstream of the volume flow measuring device 7. The inspection window 9 makes it possible to see the oil and any air entrainment carried in the line 8.

ロボット３および調整装置６の両方には、制御ユニット１０によって対応するデータが提供される。前記データは、実際のテストトラックで記録されるかまたは車両シミュレーションから生成されるトラックデータ１１を含む。こうしたトラックデータは、車両の前後方向加速度、横方向加速度あるいは垂直加速度および／またはオイル充填レベルデータを含むことができる。ここで、すべての時点ｔに対して、対応する加速度値が割り当てられている。概して、慣性力およびロボットの変位により、レーストラックで発生する可能性のあるすべての加速度値（たとえば最大３Ｇ）を、動作シーケンスの１対１の移行によって再現することができるとは限らないため、事前に定義された補償を行わなければならない。この目的で、高加速度値での傾斜した潤滑オイル面に対応するオイルタンクの角度位置を提供することが提案される。前記角度位置を、同様に、アルゴリズムによってすべての時点に対して対応して定義することができる。   Corresponding data is provided by the control unit 10 to both the robot 3 and the adjusting device 6. The data includes track data 11 recorded on actual test tracks or generated from vehicle simulations. Such track data may include vehicle longitudinal acceleration, lateral acceleration or vertical acceleration and / or oil fill level data. Here, corresponding acceleration values are assigned to all time points t. In general, due to inertial forces and robot displacement, not all acceleration values that can occur on a racetrack (eg, up to 3G) can be reproduced by a one-to-one transition of the motion sequence, Pre-defined compensation must be provided. For this purpose, it is proposed to provide the angular position of the oil tank corresponding to the inclined lubricating oil surface at high acceleration values. The angular position can likewise be defined correspondingly for all time points by an algorithm.

２ 自動動作ユニット
５ 容器
６ 調整装置 2 Automatic operation unit 5 Container 6 Adjustment device

Claims (7)

事前定義された動作シーケンスで容器（５）を動かす自動動作ユニット（２）を有する、駆動機構の潜在的な不具合状況を確定する試験台であって、試験プロセス中に要求に従って前記容器（５）から液体媒体を抽出することができ、要求に従う前記抽出が、事前定義された条件に従って前記液体媒体を搬送する調整装置（６）によって具現化される、試験台。   A test bench for determining a potential malfunction situation of the drive mechanism, having an automatic operating unit (2) that moves the container (5) in a predefined operating sequence, said container (5) according to requirements during the test process A test bench, in which the liquid medium can be extracted from, and the extraction according to requirements is embodied by an adjusting device (6) conveying the liquid medium according to predefined conditions. 前記事前定義された動作シーケンスを、実際の試験運転中に記録されたかまたは車両シミュレーションから生成された、測定値、特に加速度値から確定することができることを特徴とする、請求項１に記載の試験台。   2. The method according to claim 1, wherein the predefined motion sequence can be determined from measured values, in particular acceleration values, recorded during an actual test run or generated from a vehicle simulation. Test bench. 前記測定値が、前後方向加速度値、横方向加速度値および／または垂直加速度値であり、そこから、前記自動動作ユニット（２）のＸ方向、Ｙ方向および／またはＺ方向における動作変位および／または動作角度を定義することができることを特徴とする、請求項１または２に記載の試験台。   The measured value is a longitudinal acceleration value, a lateral acceleration value and / or a vertical acceleration value, from which a movement displacement of the automatic movement unit (2) in the X direction, Y direction and / or Z direction and / or The test stand according to claim 1, wherein an operating angle can be defined. 前記調整装置（６）がオイル調整装置であることを特徴とする、請求項１に記載の試験台。   The test bench according to claim 1, characterized in that the adjusting device (6) is an oil adjusting device. 自動動作ユニット（２）を有し、前記自動動作ユニット（２）によって容器（５）が事前定義された動作シーケンスで動かされる、駆動機構の潜在的な不具合状況を確定する方法であって、試験プロセス中に要求に従って前記容器（５）から液体媒体が抽出され、要求に従う前記抽出が、調整装置（６）によって具現化され、前記調整装置（６）により、前記液体媒体が事前定義された条件に従って搬送される、方法。   A method for determining a potential failure situation of a drive mechanism, comprising an automatic operating unit (2), wherein the container (5) is moved by the automatic operating unit (2) in a predefined operating sequence comprising: A liquid medium is extracted from the container (5) according to requirements during the process, and the extraction according to requirements is embodied by a regulating device (6), wherein the regulating device (6) predefines the liquid medium. Conveyed according to the method. トラックデータ（１１）が、制御ユニットにおいてロボットアーム（４）の動作に変換されることを特徴とする、請求項５に記載の方法。   6. The method according to claim 5, characterized in that the track data (11) is converted into movement of the robot arm (4) in the control unit. 前記トラックデータ（１１）の変換時に、前記自動動作ユニットによって高加速度値を再現するために、前記容器の角度位置が考慮されることを特徴とする、請求項５または６に記載の方法。   Method according to claim 5 or 6, characterized in that the angular position of the container is taken into account in order to reproduce a high acceleration value by the automatic movement unit during the conversion of the track data (11).
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