JP5428388B2 - Complete vehicle inspection system - Google Patents

Complete vehicle inspection system Download PDF

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JP5428388B2
JP5428388B2 JP2009044229A JP2009044229A JP5428388B2 JP 5428388 B2 JP5428388 B2 JP 5428388B2 JP 2009044229 A JP2009044229 A JP 2009044229A JP 2009044229 A JP2009044229 A JP 2009044229A JP 5428388 B2 JP5428388 B2 JP 5428388B2
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driving force
wheel
wheels
adjusting device
vehicle
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正樹 中原
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Mitsubishi Motors Corp
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Description

本発明は、乗用車等の完成車の検査装置に係り、詳しくは車両に搭載された左右車輪や前後車輪への駆動力制御を行なう装置の検査を行う完成車検査装置に関する。   The present invention relates to an inspection device for a finished vehicle such as a passenger car, and more particularly to a completed vehicle inspection device that inspects a device that controls driving force to left and right wheels and front and rear wheels mounted on a vehicle.

近年、車両の運動を運転状態に応じて自動的に制御することが考えられており、例えば、車両の旋回時に左右輪に駆動力差を電子制御により発生させることで車両のヨーモーメントを自動的に制御する装置が開発され、実用化されている。これら各装置では、例えば前後加速度、横加速度、ハンドル角等に応じて左右輪に駆動力差を制御して、車両のヨーモーメントを調節し、旋回中における車両姿勢を好適に保持するようにしている。   In recent years, it has been considered to automatically control the movement of the vehicle according to the driving state. For example, when the vehicle turns, the yaw moment of the vehicle is automatically generated by generating a driving force difference between the left and right wheels by electronic control. A device for controlling the temperature has been developed and put into practical use. In each of these devices, for example, by controlling the driving force difference between the left and right wheels according to the longitudinal acceleration, lateral acceleration, steering wheel angle, etc., the yaw moment of the vehicle is adjusted, and the vehicle posture during turning is suitably maintained. Yes.

通常、このような装置を搭載した車両にあっては、生産ラインにおいて、当該装置が適切に機能するか否かを検査している。このような検査装置の一例としては特許文献1が挙げられる。同文献に記載の完成車検査装置は、従来一般に使用されてきたブレーキテスタを用いている。例えば、検査する車両が4輪駆動あるいは後輪駆動車であり、旋回制御装置が左右各後輪の駆動力を独立に変更可能な駆動力移動機構(油圧クラッチ等の駆動力移動手段)を有した旋回制御用デフ(左右輪駆動力調整装置)を備えて構成されている場合、完成車検査装置は、車両の前輪を載せるそれぞれ一対のフリーローラと、左後輪を載せて該左後輪を駆動力付与手段となるモータにより駆動させる一対のブレーキテスタローラ及び右後輪を載せて該右後輪をモータにより駆動させる一対のブレーキテスタローラと、該ブレーキテスタローラに作用する反力情報を検出する駆動力移動状態検出手段となるロードセルと、制御盤内に設けられてロードセルからの情報を増幅処理するアンプと、アンプからの出力情報を記憶しプリントアウトするデータレコーダと、車両に搭載されている電子コントロールユニットに強制的に旋回作動指令や各種指令を供給するマルチユーステスタとから構成されている。   Usually, in a vehicle equipped with such a device, it is inspected in the production line whether the device functions properly. Patent document 1 is mentioned as an example of such an inspection apparatus. The finished vehicle inspection apparatus described in this document uses a brake tester that has been conventionally used. For example, the vehicle to be inspected is a four-wheel drive or rear-wheel drive vehicle, and the turning control device has a driving force moving mechanism (driving force moving means such as a hydraulic clutch) that can independently change the driving force of the left and right rear wheels. When the vehicle is configured with a turning control differential (right and left wheel driving force adjusting device), the completed vehicle inspection device places a pair of free rollers on which the front wheel of the vehicle is placed and a left rear wheel on the left rear wheel. A pair of brake tester rollers that are driven by a motor as a driving force applying means and a pair of brake tester rollers that mount the right rear wheel and drive the right rear wheel by a motor, and reaction force information acting on the brake tester roller. A load cell serving as a driving force movement state detection means to detect, an amplifier provided in the control panel for amplifying information from the load cell, and output information from the amplifier is stored and printed out A data recorder, and a multi-use tester supplies forcibly turning operation command and various commands to the electronic control unit mounted on the vehicle.

そして、検査時において、データレコーダから延びるケーブルを電子コントロールユニットと旋回制御用デフの駆動力移動機構に供給する油圧を制御する油圧制御ユニットとの間に配線された制御ケーブルに結線している。このため、マルチユーステスタから旋回作動指令が発せられると、油圧制御ユニットが制御されて旋回制御用デフの駆動力移動機構が作動し、左右後輪間に駆動力差が発生して旋回制御が行われることになる。このとき、電子コントロールユニットからの指令信号とロードセルからの反力情報とがデータレコーダに入力され、これらの情報に基づき旋回制御装置の検査が行われる。   At the time of inspection, the cable extending from the data recorder is connected to a control cable wired between the electronic control unit and the hydraulic control unit that controls the hydraulic pressure supplied to the driving force moving mechanism of the turning control differential. For this reason, when a turning operation command is issued from the multi-uster, the hydraulic control unit is controlled, the driving force moving mechanism of the turning control differential is operated, and a driving force difference is generated between the left and right rear wheels, and turning control is performed. Will be done. At this time, the command signal from the electronic control unit and the reaction force information from the load cell are input to the data recorder, and the turning control device is inspected based on these information.

つまり、旋回制御手段を作動させたときの左右後輪間の反力トルク差が測定され、さらに、反力トルク差が旋回制御出力時から所定の基準反力トルク差となるまでの応答遅れ時間が測定される。そして、これらの情報に応じてデータレコーダから出力されるデータに基づき、旋回制御装置の作動良否を判断している。   That is, the reaction torque difference between the left and right rear wheels when the turning control means is actuated is measured, and further, the response delay time until the reaction force torque difference becomes the predetermined reference reaction force torque difference from the turning control output. Is measured. And based on the data output from a data recorder according to these information, the quality of operation | movement of a turning control apparatus is judged.

特許第3431060号公報Japanese Patent No. 3431060

特許文献1においては、左右各後輪の駆動力を独立に変更可能して、そのときに駆動力検出手段によって検出された駆動力差に応じて車両の故障判定を行っているが、前輪を載せるローラはフリーローラであり、前後輪輪間の駆動力配分を電子制御して4輪に適切な駆動力を配分する機能を備えた車両に対応することがシステム上、行うことができない。   In Patent Document 1, the driving force of the left and right rear wheels can be changed independently, and the vehicle failure determination is performed according to the driving force difference detected by the driving force detecting means at that time. The roller to be mounted is a free roller, and it is impossible for the system to deal with a vehicle having a function of distributing an appropriate driving force to the four wheels by electronically controlling the distribution of the driving force between the front and rear wheels.

本発明は、車両の旋回制御だけでなく、前後駆動力配分を行える車両の完成車検査装置を提供することを、その目的とする。   An object of the present invention is to provide a complete vehicle inspection apparatus for a vehicle that can perform not only turning control of the vehicle but also front-rear driving force distribution.

上記課題を解決するため、請求項1にかかる発明は、左右の車輪へ付与する駆動力の割合を切り替える左右輪駆動力調整装置および前後の車輪へ付与する駆動力の割合を切り替える前後輪駆動力調整装置を備えた車両の完成車両検査装置であって、車両の前後左右の車輪に個別に駆動力を付加する複数の駆動力付与手段と、駆動力付与手段の実際の駆動状態を車輪毎に検出する駆動力検出手段と、左右輪駆動力調整装置と輪駆動力調整装置との同時作動時における駆動力検出手段からの検出結果に基づき、左右輪駆動力調整装置と前後輪駆動力調整装置の同時作動状態を判定する判定手段前後左右の車輪の回転速度を検出する速度検出手段とを有し、駆動力付与手段は、後左右輪には判定手段が安定して判定可能な所定の最低速度となるように駆動力を付与するとともに、前左右輪には後左右輪の最低速度との所定速度差が確保できる車輪速となるよう駆動力を付与することを特徴としている。 In order to solve the above problems, the invention according to claim 1 is directed to a left and right wheel driving force adjusting device that switches a ratio of driving force applied to left and right wheels, and a front and rear wheel driving force that switches a ratio of driving force applied to front and rear wheels. A vehicle inspection apparatus for a vehicle including an adjustment device, wherein a plurality of driving force applying means for individually applying driving force to front, rear, left and right wheels of the vehicle, and an actual driving state of the driving force applying means for each wheel a driving force detecting means detect, on the basis of the detection result of the driving force detecting means during simultaneous operation of the left and right wheel driving force adjustment unit and the wheel driving force adjustment unit, the left right wheel driving force adjustment unit and the front and rear wheel drive force determining means for determining simultaneous operation state of the adjusting device, have a speed detecting means for detecting the rotational speed of the front and rear left and right wheels, the driving force providing means, the rear left and right wheels judging means to have stable determinable At a given minimum speed With imparting urchin driving force, is characterized by imparting a driving force to the predetermined speed difference is the wheel speed can be ensured with the minimum speed of the rear left and right wheels in the left and right front wheels.

請求項にかかる発明は、判定手段、各速度検出手段で検出される後輪と前輪の速度差が所定速度差となるように各駆動力付与手段が各車輪に駆動力を付与した際に、前後輪駆動力調整装置を作動したときの、駆動力検出手段により検出された前輪の駆動力変化と変化時間に基づき、前後輪駆動力調整装置の作動状態を判定するとともに、左右輪駆動力調整装置を作動したときの、駆動力検出手段により検出された後方側の右側車輪と左側車輪の駆動力変化と変化時間に基づき、左右輪駆動力調整装置の作動状態を判定することを特徴としている。 The invention according to claim 2, the determination means, when the speed difference between the wheels and the front wheels after detected by the speed detecting means is the driving force providing means so that the predetermined speed difference has been applying a driving force to each wheel In addition, the operating state of the front and rear wheel driving force adjusting device is determined based on the change and change time of the front wheel detected by the driving force detecting means when the front and rear wheel driving force adjusting device is operated, and the left and right wheel driving is determined. The operating state of the left and right wheel driving force adjusting device is determined based on the driving force change and change time of the rear right wheel and the left wheel detected by the driving force detecting means when the force adjusting device is operated. It is said.

本発明によれば、左右輪駆動力調整装置および前後輪駆動力調整装置を備えた車両の前後左右の車輪に個別に駆動力を付加する複数の駆動力付与手段と、駆動力付与手段の実際の駆動状態を車輪毎に検出する駆動力検出手段と、前後輪駆動力調整装置の作動時あるいは左右輪駆動力調整装置と輪駆動力調整装置との同時作動時における駆動力検出手段からの検出結果に基づき、前後輪駆動力調整装置の作動状態あるいは左右輪駆動力調整装置と前後輪駆動力調整装置の同時作動状態を判定手段で判定するので、従来のように左右輪の駆動力を切り替える左右輪駆動割力調整装置による車両の旋回制御だけでなく、前後の車輪への駆動力を切り替える前後輪駆動力調整装置による前後駆動力配分を行える車両の検査を行うことができる。   According to the present invention, a plurality of driving force applying means for individually applying driving force to the front, rear, left and right wheels of the vehicle provided with the left and right wheel driving force adjusting device and the front and rear wheel driving force adjusting device, and the actual driving force applying means. Driving force detecting means for detecting the driving state of each wheel and detection from the driving force detecting means when the front and rear wheel driving force adjusting device is operated or when the left and right wheel driving force adjusting device and the wheel driving force adjusting device are simultaneously operated. Based on the result, the determination means determines the operating state of the front and rear wheel driving force adjusting device or the simultaneous operating state of the left and right wheel driving force adjusting device and the front and rear wheel driving force adjusting device. In addition to turning control of the vehicle by the left and right wheel driving split force adjusting device, it is possible to inspect a vehicle that can perform front and rear wheel driving force distribution by the front and rear wheel driving force adjusting device that switches the driving force to the front and rear wheels.

本発明に係る旋回制御と前後車輪間駆動力制御を行える車両を検査する完成車検査装置を示す概略構成図である。It is a schematic block diagram which shows the completed vehicle inspection apparatus which test | inspects the vehicle which can perform turning control which concerns on this invention, and driving force control between front-and-rear wheels. 旋回制御と前後車輪間駆動力制御を行える車両の一形態を示す概略構成図である。It is a schematic block diagram which shows one form of the vehicle which can perform turning control and front-and-rear wheel driving force control. 旋回用検査時に出力される反力トルクの測定データを示す図である。It is a figure which shows the measurement data of the reaction force torque output at the time of the test | inspection for turning. 旋回用検査を行う強制駆動パターンと後輪側の作動応答遅れを示す図である。It is a figure which shows the forced drive pattern which performs the test | inspection for turning, and the operation response delay by the rear-wheel side. 前後用検査を行う強制駆動パターンと前輪側の作動応答遅れを示す図である。It is a figure which shows the forcible drive pattern which performs the test | inspection for front-back, and the operation response delay by the front-wheel side. 旋回用検査時と前後用検査を同時に行う場合の強制駆動パターンを示す図である。It is a figure which shows the forced drive pattern in the case of performing simultaneously the test | inspection for turning, and the test | inspection for front and back. 旋回用検査と前後用検査を同時に行う場合に出力されるトルクの測定データを示す図である。It is a figure which shows the measurement data of the torque output when performing the test | inspection for turning, and the test | inspection for front and back simultaneously.

以下、本発明の実施形態を図面に基づいて説明する。本発明に係る完成車検査装置1は、4輪駆動方式の車両100を検査するものとして説明するが、4輪駆動方式の車両100に限定されるものではない。図2に示すように、車両100は、搭載されたエンジン101の駆動力が、トランスミッション102及びセンタデフ103、中間ギア機構104からフロントディファレンシャル(以下、フロントデフ)105および車軸106L,106Rを介して前輪左107Lと前輪右107Rにそれぞれ伝達されるとともに、センタデフ103で分岐されて前輪側ハイポイドギヤ機構108、プロペラシャフト109、後輪側ハイポイドギヤ機構110、リヤディファレンシャル(以下、「リアデフ」と記す)111および車軸112L,112Rを介して後輪左113Lと後輪右113Rに伝達されるようになっている。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. The completed vehicle inspection apparatus 1 according to the present invention will be described as inspecting the four-wheel drive vehicle 100, but is not limited to the four-wheel drive vehicle 100. As shown in FIG. 2, the vehicle 100 has a driving force of an engine 101 mounted on the front wheel via a transmission 102, a center differential 103, an intermediate gear mechanism 104, a front differential (hereinafter, front differential) 105, and axles 106 </ b> L and 106 </ b> R. It is transmitted to the left 107L and the right front wheel 107R, and is branched by the center differential 103 to be front wheel side hypoid gear mechanism 108, propeller shaft 109, rear wheel side hypoid gear mechanism 110, rear differential (hereinafter referred to as "rear differential") 111 and axle. It is transmitted to the rear wheel left 113L and the rear wheel right 113R via 112L and 112R.

フロントデフ105には、前後輪駆動力調整装置となる電磁制御式のセンタデフ作動制限装置114が、リアデフ12には左右輪間駆動力調整装置となる左右輪間駆動力移動装置115がそれぞれ配備されている。センタデフ作動制限装置114は、油圧ユニット116と配管で接続されていて、油圧ユニット116から油圧をセンタデフコントロールユニット117で電子制御されることで前後の車輪への駆動力の配分を適宜切り替えるものである。左右輪間駆動力移動装置115は、油圧ユニット116と配管で接続されていて、油圧ユニット116から油圧をリアデフコントロールユニット118で電子制御されることで後輪左113Lと後輪右113Rへの駆動力の配分を制御するものである。   The front differential 105 is provided with an electromagnetically controlled center differential operation limiting device 114 serving as a front and rear wheel driving force adjusting device, and the left and right wheel driving force moving device 115 serving as a left and right wheel driving force adjusting device is provided on the rear differential 12. ing. The center differential operation restriction device 114 is connected to the hydraulic unit 116 by piping, and the hydraulic pressure from the hydraulic unit 116 is electronically controlled by the center differential control unit 117 so that the distribution of driving force to the front and rear wheels is appropriately switched. is there. The driving force moving device 115 between the left and right wheels is connected to the hydraulic unit 116 by piping, and the hydraulic pressure from the hydraulic unit 116 is electronically controlled by the rear differential control unit 118 to drive the rear wheel left 113L and the rear wheel right 113R. It controls the distribution of power.

センタデフ作動制限装置114及び左右輪間駆動力移動装置115は、車両100に搭載された車両制御ユニット(以下「ECU」と記す)120によって各コントローラ117,118が制御されることで駆動力配分制御動作を行うように構成されている。センタデフ作動制限装置114及び左右輪間駆動力移動装置115の詳細な構成は、本出願人が特開2007−131229号公報においてすでに公開している周知の内容であるので、詳細な説明は省略する。   The center differential operation limiting device 114 and the left-right wheel driving force moving device 115 are controlled by a controller 117 and 118 that are controlled by a vehicle control unit (hereinafter referred to as “ECU”) 120 mounted on the vehicle 100. It is configured to perform operations. The detailed configurations of the center differential operation limiting device 114 and the driving force moving device 115 between the left and right wheels are well-known contents already disclosed by the present applicant in Japanese Patent Laid-Open No. 2007-131229, and thus detailed description thereof is omitted. .

図1に示すように、完成車検査装置1は、車両100の前輪左103L及び前輪右103Rをそれぞれ載せる一対のブレーキテスタローラ10,11及びブレーキテスタローラ12,13と、左後輪左113L及び後輪右113Rをそれぞれ載せる一対のブレーキテスタローラ16,17及びブレーキテスタローラ18,19と、電子コントロールユニット検査装置(以下「ECUテスタ」と記す)30と、判定手段60を備えている。   As shown in FIG. 1, the completed vehicle inspection apparatus 1 includes a pair of brake tester rollers 10 and 11 and brake tester rollers 12 and 13 on which a front wheel left 103L and a front wheel right 103R of the vehicle 100 are respectively mounted, a left rear wheel left 113L, and A pair of brake tester rollers 16 and 17 and brake tester rollers 18 and 19 on which the rear wheel right 113R is mounted, an electronic control unit inspection device (hereinafter referred to as “ECU tester”) 30, and a determination means 60 are provided.

ブレーキテスタローラ10,11は制動力用駆動モータ14が、ブレーキテスタローラ12,13は制動力用駆動モータ15がそれぞれ作動することで、それぞれ駆動力が付与されて回転駆動するように構成されている。ブレーキテスタローラ16,17は制動力用駆動モータ20が、ブレーキテスタローラ18,19は制動力用駆動モータ21がそれぞれ作動することで、それぞれ駆動力が付与されて回転駆動するように構成されている。   The brake tester rollers 10 and 11 are driven by a braking force drive motor 14, and the brake tester rollers 12 and 13 are driven by a braking force drive motor 15. Yes. The brake tester rollers 16 and 17 are driven by a braking force drive motor 20, and the brake tester rollers 18 and 19 are driven by a braking force drive motor 21. Yes.

前輪側のブレーキテスタローラ11,13は中速用駆動モータ22,23によって、後輪側のブレーキテスタローラ17,19は中速用駆動モータ24,25によってそれぞれ駆動力が付与されて回転駆動するように構成されている。これら駆動モータのうち、中速用駆動モータ22〜25が駆動力付与手段として機能する。   The brake tester rollers 11 and 13 on the front wheel side are driven to rotate by medium speed drive motors 22 and 23, and the brake tester rollers 17 and 19 on the rear wheel side are driven to rotate by medium speed drive motors 24 and 25, respectively. It is configured as follows. Among these drive motors, medium speed drive motors 22 to 25 function as drive force applying means.

完成車検査装置1は、ブレーキテスタローラ11,13に作用する反力情報を検出する駆動力移動状態検出手段となるロードセル26,27とブレーキテスタローラ17,19に作用するロードセル28,29と、ブレーキテスタローラ11,13,17,19の回転から前後各車輪の回転速度を検出する速度検出手段71,72,73,74を備えている。ロードセル26,27,28,29は、ブレーキテスタローラ11,13,17,19に作用する各車輪からの駆動力を検出するもので駆動力検出手段を構成している。   The completed vehicle inspection apparatus 1 includes load cells 26 and 27 serving as driving force movement state detecting means for detecting reaction force information acting on the brake tester rollers 11 and 13, load cells 28 and 29 acting on the brake tester rollers 17 and 19, Speed detecting means 71, 72, 73, 74 for detecting the rotational speeds of the front and rear wheels from the rotation of the brake tester rollers 11, 13, 17, 19 are provided. The load cells 26, 27, 28, and 29 detect the driving force from each wheel that acts on the brake tester rollers 11, 13, 17, and 19, and constitute driving force detection means.

ECUテスタ30からはケーブル32が延びていて、このケーブル32は例えばECU120に常備されたダイアグコネクタにコネクタ接続されている。判定手段60は、ロードセル26,27,28,29からの情報と速度検出手段71〜74からの速度情報を増幅処理するアンプ61と、当該完成車検査装置1のシーケンス制御を行うコンピュータで構成された検査制御手段となるシーケンサ62を備えている。シーケンサ62は、アンプ61と接続されているとともに、ECUテスタ30とケーブル34で連結されている。シーケンサ62からは、さらにケーブル36,38,40が延びている。ケーブル36は検査結果出力手段となるモニタ44に接続されている。モニタ44は検査結果を表示する表示装置であり、計測結果や計測データなどの各種内容が表示される。ケーブル38は検査結果出力手段となる上位システム(パソコン)46に接続されている。上位システム46は測定内容を保存・印字出力するものである。ケーブル40はラインサイドに設けられた紐スイッチ48に接続されている。この紐スイッチ48は作業者が操作するもので、検査の開始と終了の他、検査項目の切換えを行う機能を備えたスイッチである。   A cable 32 extends from the ECU tester 30, and this cable 32 is connected to a diagnostic connector provided in the ECU 120, for example. The determination means 60 is composed of an amplifier 61 that amplifies information from the load cells 26, 27, 28, and 29 and speed information from the speed detection means 71 to 74, and a computer that performs sequence control of the completed vehicle inspection apparatus 1. A sequencer 62 serving as an inspection control unit is provided. The sequencer 62 is connected to the amplifier 61 and is connected to the ECU tester 30 with a cable 34. Cables 36, 38, and 40 further extend from the sequencer 62. The cable 36 is connected to a monitor 44 serving as an inspection result output unit. The monitor 44 is a display device that displays inspection results, and displays various contents such as measurement results and measurement data. The cable 38 is connected to a host system (personal computer) 46 serving as an inspection result output unit. The host system 46 stores and prints out the measurement contents. The cable 40 is connected to a string switch 48 provided on the line side. The string switch 48 is operated by an operator, and has a function of switching inspection items in addition to starting and ending inspection.

このような構成の完成車検査装置1では、判定手段60が、中速用駆動モータ22〜25と、センタデフ作動制限装置114と左右輪間駆動力移動装置115の作動時におけるロードセル26,27,28,29からの検出結果に基づき、前後の車輪へ付与する駆動力の割合を切り替えるセンタデフ作動制限装置114と、後輪左113Lと後輪右113Rへ付与する駆動力の割合を切り替える左右輪間駆動力移動装置115の作動状態を判定する機能を備えている。本形態において、センタデフ作動制限装置114の作動状態の判定を行う検査を旋回用検査とし、左右輪間駆動力移動装置115の作動状態の判定を行う検査を前後用判定と称する。   In the completed vehicle inspection apparatus 1 having such a configuration, the determination means 60 includes the load cells 26, 27, 27 at the time of operation of the medium speed drive motors 22 to 25, the center differential operation limiting device 114, and the left and right wheel driving force moving device 115. Based on the detection results from 28 and 29, the center differential operation limiting device 114 that switches the ratio of the driving force applied to the front and rear wheels, and between the left and right wheels that switches the ratio of the driving force applied to the rear left wheel 113L and the rear wheel right 113R. A function of determining the operating state of the driving force moving device 115 is provided. In this embodiment, the inspection for determining the operating state of the center differential operation limiting device 114 is referred to as a turning inspection, and the inspection for determining the operating state of the left-right wheel driving force moving device 115 is referred to as a front-rear determination.

本形態では、判定手段60が左右輪間駆動力移動装置115とセンタデフ作動制限装置114の検査を個別な工程で行う場合について説明する。この場合、判定手段60は、各速度検出手段71〜74で検出される前輪と後輪の速度差が所定速度差となるように中速用駆動モータ22〜25が各車輪に駆動力を付与した際に、左右輪間駆動力移動装置115を作動したときのロードセル28,29により検出された後輪左113Lと後輪右113Rの駆動力変化と変化時間に基づき、左右輪間駆動力移動装置115の作動状態を判定するとともに、センタデフ作動制限装置114を作動したときのロードセル26,27により検出された前輪の駆動力変化と変化時間に基づき、センタデフ作動制限装置114の作動状態を判定する。   In the present embodiment, a case will be described in which the determination unit 60 performs inspections of the left-right wheel driving force moving device 115 and the center differential operation limiting device 114 in separate steps. In this case, in the determination means 60, the medium speed drive motors 22 to 25 apply driving force to the wheels so that the speed difference between the front wheels and the rear wheels detected by the speed detection means 71 to 74 becomes a predetermined speed difference. When the left and right wheel driving force moving device 115 is operated, the left and right wheel driving force movement is determined based on the driving force change and change time of the rear wheel left 113L and the rear wheel right 113R detected by the load cells 28 and 29. In addition to determining the operating state of the device 115, the operating state of the center differential operation limiting device 114 is determined based on the change in driving force of the front wheels detected by the load cells 26 and 27 when the center differential operation limiting device 114 is operated and the change time. .

このため、シーケンサ62には、後輪における左右車輪間での目標制御値及び目標遅れ値と、前輪側の目標制御値と目標遅れ値が予め設定されている。シーケンサ62は、各ロードセルで検出した駆動力をトルクに換算する機能を備えている。本形態において、中速用駆動モータ22,23は前輪左107Lと前輪右107Rを10km/hで、中速用駆動モータ24,25は後輪左113Lと後輪右113Rを5km/hで、それぞれ回転するようにシーケンサ62によって制御されている。つまり、本形態では、前輪と後輪の速度差を5km/hに設定している。これは前輪と後輪の速度差が10km/hを超えると、ECU120が異常信号を出力するように設定されているためである。前輪と後輪の速度差は、ECU120が異常信号を出力する速度差よりも低い値に設定すればよく、5km/hに限定されるものではない。   Therefore, the sequencer 62 is preset with a target control value and a target delay value between the left and right wheels in the rear wheel, and a target control value and a target delay value on the front wheel side. The sequencer 62 has a function of converting the driving force detected by each load cell into torque. In this embodiment, the medium-speed drive motors 22 and 23 have a front wheel left 107L and a front wheel right 107R of 10 km / h, and the medium-speed drive motors 24 and 25 have a rear wheel left 113L and a rear wheel right 113R of 5 km / h. Each sequencer 62 is controlled to rotate. That is, in this embodiment, the speed difference between the front wheels and the rear wheels is set to 5 km / h. This is because the ECU 120 is set to output an abnormal signal when the speed difference between the front wheels and the rear wheels exceeds 10 km / h. The speed difference between the front wheels and the rear wheels may be set to a value lower than the speed difference at which the ECU 120 outputs an abnormal signal, and is not limited to 5 km / h.

また、後輪を時速5km/hに設定したのは、判定手段60側で検出される信号精度が5km/h以下であると不安定になるためである。つまり、本形態では検査対象の最低速度を時速5km/hにしたが、タイヤ幅や車両重量など、各ブレーキテスタローラに係る負荷が変化する場合、あるいは各ロードセルや判定手段60に精度のよいものを用い、時速5km/h以下でも信号検出を判定手段60が安定して行えるのであれば、最低速度は時速5km/h以下に設定してもよい。   The reason why the rear wheel is set to 5 km / h is that the signal accuracy detected on the determination means 60 side becomes unstable if it is 5 km / h or less. That is, in this embodiment, the minimum speed to be inspected is set to 5 km / h, but when the load on each brake tester roller such as the tire width or the vehicle weight changes, or each load cell or the determination means 60 has high accuracy. The minimum speed may be set to 5 km / h or less as long as the determination means 60 can stably detect signals even at 5 km / h or less.

このように構成された後左右輪及び前後車輪間での駆動力配分を調整可能とした車両100の完成車検査装置1の作用、即ち完成車における旋回用検査と前後用検査の手順について説明する。図3は、ECUテスタ30からの信号により後左右輪間で駆動力配分を強制的に変化させたときの測定データであり、図4は、左右輪間駆動力移動装置115に作動用の制御電流を流したときの電流特性と、後輪左113Lと後輪右113Rでのトルク移動量の応答特性を示す。   The operation of the completed vehicle inspection device 1 of the vehicle 100 that can adjust the driving force distribution between the rear left and right wheels and the front and rear wheels configured as described above, that is, the procedure of the turn inspection and the front and rear inspection in the completed vehicle will be described. . FIG. 3 shows measurement data when the driving force distribution is forcibly changed between the rear left and right wheels by a signal from the ECU tester 30, and FIG. 4 shows the control for operating the driving force moving device 115 between the left and right wheels. A current characteristic when current is passed and a response characteristic of a torque movement amount at the rear wheel left 113L and the rear wheel right 113R are shown.

本形態において完成した車両100の検査が行われるときに、車両100は、エンジン101が作動状態とされる一方、トランスミッション102がニュートラルの状態とされており、左107Lと前輪右107Rがブレーキテスタローラ10,11とブレーキテスタローラ12,13に、後輪左113L,後右113Rがブレーキテスタローラ16,17とブレーキテスタローラ18,19にそれぞれ載せられる。   When the inspection of the vehicle 100 completed in this embodiment is performed, the vehicle 100 is in an operating state while the engine 101 is in an operating state, the transmission 102 is in a neutral state, and the left 107L and the front wheel right 107R are brake tester rollers. The rear wheel left 113L and the rear right 113R are placed on the brake tester rollers 16 and 17 and the brake tester rollers 18 and 19, respectively.

そして作業者によって紐スイッチ48が操作されると、旋回用検査信号がシーケンサ62から出力されて旋回検査が行われる。この検査ではシーケンサ62によって中速用駆動モータ22,23が作動すると、ブレーキテスタローラ11,13が回転して前輪左107Lと前輪右107Rが10km/hで強制的に回転した状態とされ、中速用駆動モータ24,25が作動すると、ブレーキテスタローラ17,19が回転して後輪左113Lと後輪右113Rが5km/hで強制的に回転した状態とされる。   Then, when the string switch 48 is operated by the operator, a turning inspection signal is output from the sequencer 62 and the turning inspection is performed. In this inspection, when the medium speed drive motors 22 and 23 are actuated by the sequencer 62, the brake tester rollers 11 and 13 are rotated so that the front wheel left 107L and the front wheel right 107R are forcibly rotated at 10 km / h. When the speed drive motors 24 and 25 are operated, the brake tester rollers 17 and 19 are rotated, and the rear wheel left 113L and the rear wheel right 113R are forcedly rotated at 5 km / h.

シーケンサ62は、ECUテスタ30に向けて旋回検査開始信号(信号送信指令)を発し、これに基づき、ECUテスタ30からはECU120に向けてケーブル32を介して所定の強制旋回作動信号が送信される。この強制旋回作動信号を受けると、ECU120からは、左方向へ駆動トルクを移動させる左方向制御信号、即ち左後輪113Lに駆動力を付加する旋回制御指令(旋回制御信号)が油圧制御ユニット6のリアデフコントロールユニット118に送信されるとともに、ケーブル32を介してECUテスタ30に出力される。そして、この左方向制御信号はケーブル34を介してシーケンサ62に送信される。   The sequencer 62 issues a turning inspection start signal (signal transmission command) to the ECU tester 30, and based on this, a predetermined forced turning operation signal is transmitted from the ECU tester 30 to the ECU 120 via the cable 32. . When this forced turning operation signal is received, the ECU 120 sends a left direction control signal for moving the driving torque to the left, that is, a turning control command (turning control signal) for adding driving force to the left rear wheel 113L. Is transmitted to the rear differential control unit 118 and is output to the ECU tester 30 via the cable 32. The left direction control signal is transmitted to the sequencer 62 via the cable 34.

このように左方向制御信号がシーケンサ62に入力すると、ケーブル36を介してモニタ44上に旋回検査中であることが表示され、ロードセル28,29からの情報に基づいて後輪左113Lと後輪右113Rのそれぞれの反力トルクTLL,TLRが演算される。この場合、図3に示すように、後輪左113Lの反力トルクTLLは定常時の反力トルクTOL(図1中白抜き矢印)よりもマイナス(−)側となり(図1中短い斜線矢印)、一方、後輪右113Rの反力トルクTLRは定常時の反力トルクTOR(図1中白抜き矢印)よりもプラス(+)側となる(図1中長い斜線矢印)。   When the left direction control signal is input to the sequencer 62 in this way, it is displayed on the monitor 44 via the cable 36 that the turning inspection is being performed, and the rear left wheel 113L and the rear wheel are based on information from the load cells 28 and 29. The reaction force torques TLL and TLR of the right 113R are calculated. In this case, as shown in FIG. 3, the reaction torque TLL of the rear left wheel 113L is on the minus (−) side with respect to the reaction torque TOL during normal operation (the white arrow in FIG. 1) (the short hatched arrow in FIG. 1). On the other hand, the reaction torque TLR of the right rear wheel 113R is on the plus (+) side of the normal reaction torque TOR (white arrow in FIG. 1) (long hatched arrow in FIG. 1).

そして、これら反力トルクTLL,TLRから反力トルク差TL、即ち駆動トルクの左移動量が演算される。続けてECU120から、右方向へ駆動トルクを移動させる右方向制御信号、即ち後輪右113Rに駆動力を付加する旋回制御指令が油圧制御ユニット6のリアデフコントロールユニット118に送信されるとともに、ケーブル32を介してECUテスタ30に出力される。そして、この右方向制御信号はケーブル34を介してシーケンサ62に送信され、ロードセル28,29からの情報に基づいて左後輪113L側と右後輪113R側のそれぞれの反力トルクTRL,TRRが演算される。   Then, the reaction torque difference TL, that is, the left movement amount of the drive torque is calculated from the reaction torques TLL and TLR. Subsequently, a right direction control signal for moving the driving torque in the right direction, that is, a turning control command for adding driving force to the rear wheel right 113R is transmitted from the ECU 120 to the rear differential control unit 118 of the hydraulic control unit 6, and the cable 32 Is output to the ECU tester 30. The right direction control signal is transmitted to the sequencer 62 via the cable 34, and the reaction torques TRL, TRR on the left rear wheel 113L side and the right rear wheel 113R side are respectively determined based on information from the load cells 28, 29. Calculated.

この場合には、図3に示すように、後輪左113Lの反力トルクTRLは定常時の反力トルクTOLよりもプラス(+)側となり、一方、後輪右113Rの反力トルクTRRは定常時の反力トルクTORよりもマイナス(−)側となる。そして、これら反力トルクTRL,TRRから反力トルク差TR、即ち駆動トルクの右移動量が演算される。   In this case, as shown in FIG. 3, the reaction torque TRL of the rear left wheel 113L is on the plus (+) side with respect to the reaction torque TOL in the steady state, while the reaction torque TRR of the rear wheel right 113R is It is on the minus (−) side from the constant reaction torque TOR. Then, the reaction torque difference TR, that is, the right movement amount of the driving torque is calculated from the reaction torques TRL and TRR.

これらトルク変位と同時に、図4に示すように、ECU120により左方向制御信号及び右方向制御信号となるリアデフコントロールユニット118の制御電流がそれぞれ出力されてからロードセル28,29が反応するまでの時間、即ち応答遅れ量tL,tRがそれぞれ計測される。このように旋回用制御を行い、駆動トルクの左移動量及び右移動量並びに各応答遅れ量が求められると、これら左移動量(TL)及び右移動量(TR)並びに各応答遅れ量tL,tR(応答時間)がモニタ44上に表示される。   Simultaneously with these torque displacements, as shown in FIG. 4, the time from when the control current of the rear differential control unit 118 serving as the left direction control signal and the right direction control signal is output by the ECU 120 until the load cells 28 and 29 react, That is, the response delay amounts tL and tR are measured. When the turning control is performed in this way and the left and right moving amounts of the drive torque and the response delay amounts are obtained, the left moving amount (TL) and the right moving amount (TR) and the response delay amounts tL, tR (response time) is displayed on the monitor 44.

そして、シーケンサ62において、上記駆動トルクの左移動量(TL)及び右移動量(TR)がECU120から出力される制御電流(左方向制御信号及び右方向制御信号)に応じた各目標制御値と比較され、各応答遅れ量tL,tR(駆動力移動状態値)が各目標遅れ値(基準時間)と比較される。即ち、左移動量(TL)、右移動量(TR)や各応答遅れ量tL,tRがそれぞれ許容範囲内にあるか否かが判定される。   Then, in the sequencer 62, the left movement amount (TL) and the right movement amount (TR) of the driving torque are set to each target control value corresponding to the control current (left direction control signal and right direction control signal) output from the ECU 120. Each response delay amount tL, tR (driving force movement state value) is compared with each target delay value (reference time). That is, it is determined whether the left movement amount (TL), the right movement amount (TR), and the response delay amounts tL and tR are within allowable ranges.

このように左移動量(TL)、右移動量(TR)や各応答遅れ量の判定が行われると、その判定結果が左移動量、右移動量及び各応答遅れ量のそれぞれについてOK(良)またはNG(否)でモニタ44に表示される。   When the left movement amount (TL), right movement amount (TR), and each response delay amount are thus determined, the determination result is OK (good) for each of the left movement amount, right movement amount, and each response delay amount. ) Or NG (no).

一方、作業者によって紐スイッチ48が更に操作されると、前後検査信号がシーケンサ62から出力されて前後用検査が行われる。この検査では、中速用駆動モータ22,23により前輪左107Lと前輪右107Rは10km/hで強制的に回転され、中速用駆動モータ24,25により後輪左113Lと後輪右113Rは5km/hで強制的に回転された状態となる。また、前後検査信号が出力されると、この信号はケーブル32を介してECUテスタ30に出力される。そして、この前後検査信号はケーブル34を介してシーケンサ62に送信され、前後検査信号がシーケンサ62に入力すると、ケーブル36を介してモニタ44上に前後用検査中であることが表示される。   On the other hand, when the string switch 48 is further operated by the operator, a front / rear inspection signal is output from the sequencer 62 and a front / rear inspection is performed. In this inspection, the front wheel left 107L and the front wheel right 107R are forcibly rotated at 10 km / h by the medium speed drive motors 22 and 23, and the rear wheel left 113L and the rear wheel right 113R are rotated by the medium speed drive motors 24 and 25. It will be in the state forcedly rotated at 5 km / h. When the front / rear inspection signal is output, the signal is output to the ECU tester 30 via the cable 32. The front / rear inspection signal is transmitted to the sequencer 62 via the cable 34. When the front / rear inspection signal is input to the sequencer 62, it is displayed on the monitor 44 via the cable 36 that the front / rear inspection is being performed.

図5は、前後用検査時における前後輪間駆動力移動装置114へ作動用の制御電流を流す前のトルクの応答特性と、前後輪間駆動力移動装置114へ作動用の制御電流を流したときのトルクの応答特性を示す。   FIG. 5 shows the response characteristics of the torque before the operation control current is supplied to the front-rear wheel driving force transfer device 114 during the front-rear inspection, and the operation control current is supplied to the front-rear wheel drive force transfer device 114. The torque response characteristics are shown.

前後用検査が開始されると、シーケンサ62は、ロードセル26,27からの情報に基づいて前輪左107Lと前輪右107Rのそれぞれの反力トルクTLL,TLRの合計トルクTL1を演算し、演算結果を一旦図示しないメモリに記憶する。演算が終了すると、ECU120からは、前後制御信号が油圧制御ユニット116のセンサデフユニット117に送信されるとともに、ケーブル32を介してECUテスタ30に出力される。すると、シーケンサ62は、センサデフユニット117作動後の、ロードセル26,27からの情報に基づいて前輪左107Lと前輪右107Rの反力トルクTLL2,TLR2の合計トルクTL2を演算するとともに、合計トルクTL2と合計トルクTL1から、センサデフユニット117作動前後のトルク差TL3を算出する。   When the front / rear inspection is started, the sequencer 62 calculates the total torque TL1 of the reaction torques TLL and TLR of the front wheel left 107L and the front wheel right 107R based on the information from the load cells 26 and 27, and calculates the calculation result. Once stored in a memory (not shown). When the calculation is completed, the ECU 120 transmits a front / rear control signal to the sensor differential unit 117 of the hydraulic control unit 116 and outputs it to the ECU tester 30 via the cable 32. Then, the sequencer 62 calculates the total torque TL2 of the reaction force torques TLL2 and TLR2 of the front wheel left 107L and the front wheel right 107R based on the information from the load cells 26 and 27 after the sensor differential unit 117 is operated, and the total torque TL2 And the torque difference TL3 before and after the operation of the sensor differential unit 117 is calculated from the total torque TL1.

また、前後用検査においては、図5に示すようにセンタデフコントロールユニット117への制御電流を流す前と後のロードセル26,27が反応するまでの時間、即ち応答遅れ量tL1,tR2がそれぞれ計測されとともに、応答遅れ量tL1とtR2の差分tL3とトルク差TL3がモニタ44上に表示される。   In the front-rear inspection, as shown in FIG. 5, the time until the load cells 26 and 27 react before the control current is supplied to the center differential control unit 117, that is, the response delay amounts tL1 and tR2 are measured. At the same time, the difference tL3 between the response delay amounts tL1 and tR2 and the torque difference TL3 are displayed on the monitor 44.

そして、シーケンサ62において、上記トルク差TL3がECU120から出力される制御電流に応じた各目標制御値と比較され、各応答遅れ量tL,tRが各目標遅れ値と比較される。即ち、差分tL3とトルク差TL3がそれぞれ許容範囲内にあるか否かが判定される。   Then, in the sequencer 62, the torque difference TL3 is compared with each target control value corresponding to the control current output from the ECU 120, and each response delay amount tL, tR is compared with each target delay value. That is, it is determined whether the difference tL3 and the torque difference TL3 are within allowable ranges.

このように応答遅れ量tL1とtR2の差分tL3とトルク差TL3の判定が行われると、その判定結果がそれぞれについてOK(良)またはNG(否)でモニタ44に表示される。   When the difference tL3 between the response delay amounts tL1 and tR2 and the torque difference TL3 are thus determined, the determination results are displayed on the monitor 44 as OK (good) or NG (not), respectively.

以上のようにして、左右輪間駆動力移動装置115とセンタデフ作動制限装置114の検査が終了することになるが、そのとき、紐スイッチ48が操作されてシーケンサ62に終了信号が供給されると、シーケンサ62から検査終了信号が出力される。検査終了信号が出力されると、モニタ44に表示されていた情報がリセットされるとともに、各駆動モータが停止され、上記各判定結果が上位システム46によって印字出力されることになる。   As described above, the inspection of the driving force moving device 115 between the left and right wheels 115 and the center differential operation limiting device 114 is completed. At this time, when the string switch 48 is operated and an end signal is supplied to the sequencer 62. The sequencer 62 outputs an inspection end signal. When the inspection end signal is output, the information displayed on the monitor 44 is reset, each drive motor is stopped, and each determination result is printed out by the host system 46.

なお、図3において、定常時の反力トルクTOLと反力トルクTORとが僅かに異なっているが、これは、後輪左113Lと後輪右113R間の個体差(引きずりトルク差等)に基づくものであり誤差の範囲である。   In FIG. 3, the reaction force torque TOL and the reaction force torque TOR in a steady state are slightly different, but this is due to an individual difference (such as a drag torque difference) between the rear wheel left 113L and the rear wheel right 113R. This is based on the error range.

このような構成の完成車検査装置1を用いることで、従来のように左右輪の駆動力を切り替える左右輪駆動力調整装置115による車両の旋回制御だけでなく、前後の車輪への駆動力を切り替える前後輪駆動力調整装置114による前後駆動力配分を行える車両100の検査を行うことができる。   By using the completed vehicle inspection device 1 having such a configuration, not only the vehicle turning control by the left and right wheel driving force adjusting device 115 that switches the driving force of the left and right wheels as in the past, but also the driving force to the front and rear wheels can be obtained. It is possible to inspect the vehicle 100 that can perform front-rear driving force distribution by the front-rear wheel driving force adjusting device 114 that switches.

上記形態では、左右輪駆動力調整装置115と前後輪駆動力調整装置114による旋回用検査と前後用検査を個別に異なっていたが、例えば紐スイッチ48を作業者が操作して時に、旋回用検査と前後用検査とが連続して実行されるようにしてもよい。   In the above embodiment, the turning inspection and the front / rear inspection by the left and right wheel driving force adjusting device 115 and the front and rear wheel driving force adjusting device 114 are individually different. For example, when the operator operates the string switch 48, The inspection and the front-rear inspection may be performed continuously.

この場合の強制駆動パターンを図6に、前輪と後輪のトルク波形を図7に示す。連続して左右輪駆動力調整装置115と前後輪駆動力調整装置114を強制駆動する場合には、中低速用駆動モータ22〜25を作動して、前輪を10km、後輪を5km/hで回転させた状態で、左方向制御信号と右方向制御信号を発し、リアデフコントロールユニット118を作動して後輪左113Lの反力トルクTRLを計測し、次に後輪右113Rの反力トルクTRRし、前後制御信号を発してセンタデフコントロールユニット117を作動すればよい。   FIG. 6 shows the forced drive pattern in this case, and FIG. 7 shows the torque waveforms of the front and rear wheels. When the left and right wheel driving force adjusting device 115 and the front and rear wheel driving force adjusting device 114 are continuously forcibly driven, the medium and low speed driving motors 22 to 25 are operated, and the front wheels are 10 km and the rear wheels are 5 km / h. In the rotated state, a left direction control signal and a right direction control signal are issued, the rear differential control unit 118 is operated to measure the reaction torque TRL of the rear wheel left 113L, and then the reaction torque TRR of the rear wheel right 113R. Then, the center differential control unit 117 may be operated by issuing a front / rear control signal.

このように、一度の操作で、左右輪駆動力調整装置115と前後輪駆動力調整装置114を強制駆動して検査することで、個別に検査を行う場合に比べて検査時間を短縮することができる。   In this way, the inspection time can be shortened as compared with the case where the inspection is performed individually by forcibly driving the left and right wheel driving force adjusting device 115 and the front and rear wheel driving force adjusting device 114 in one operation. it can.

1 完成車両検査装置
22〜25 駆動力付与手段
26〜29 駆動力検出手段
60 判定手段
71〜74 速度検出手段
100 車両
107L,107R 前輪
113L,113R 後輪
114 前後輪駆動力調整装置
115 左右輪駆動力調整装置
DESCRIPTION OF SYMBOLS 1 Completion vehicle inspection apparatus 22-25 Driving force provision means 26-29 Driving force detection means 60 Determination means 71-74 Speed detection means 100 Vehicle 107L, 107R Front wheel 113L, 113R Rear wheel 114 Front-rear wheel driving force adjustment apparatus 115 Left-right wheel drive Force adjustment device

Claims (2)

左右の車輪へ付与する駆動力の割合を切り替える左右輪駆動力調整装置および前後の車輪へ付与する駆動力の割合を切り替える前後輪駆動力調整装置を備えた車両の完成車両検査装置であって、
前記車両の前後左右の車輪に個別に駆動力を付加する複数の駆動力付与手段と、
前記駆動力付与手段の実際の駆動状態を前記車輪毎に検出する駆動力検出手段と、
記左右輪駆動力調整装置と前後輪駆動力調整装置との同時作動時における前記駆動力検出手段からの検出結果に基づき、記左右輪駆動力調整装置と前後輪駆動力調整装置の同時作動状態を判定する判定手段と
前後左右の車輪の回転速度を検出する速度検出手段を有
前記駆動力付与手段は、後左右輪には前記判定手段が安定して判定可能な所定の最低速度となるように駆動力を付与するとともに、前左右輪には前記後左右輪の前記最低速度との所定速度差が確保できる車輪速となるよう駆動力を付与することを特徴とする完成車両検査装置。
A vehicle inspection apparatus for a vehicle including a left and right wheel driving force adjusting device that switches a ratio of driving force applied to left and right wheels and a front and rear wheel driving force adjusting device that switches a ratio of driving force applied to front and rear wheels,
A plurality of driving force applying means for individually adding driving force to the front, rear, left and right wheels of the vehicle;
Driving force detecting means for detecting the actual driving state of the driving force applying means for each wheel;
Simultaneous before SL based on the detection result from the driving force detecting means during simultaneous operation of the left and right wheel driving force adjustment unit and the front and rear wheel driving force adjustment unit, before Symbol left and right wheel driving force adjustment unit and the front and rear wheel driving force adjustment device Determining means for determining the operating state ;
Have a velocity detecting means for detecting a rotational speed of the front and rear left and right wheels,
The driving force applying means applies a driving force to the rear left and right wheels so that a predetermined minimum speed that can be determined stably by the determining means is applied, and the minimum speed of the rear left and right wheels is applied to the front left and right wheels. And a driving force is applied so that the wheel speed is such that a predetermined speed difference can be secured .
記判定手段は、速度検出手段で検出される後輪と前輪の速度差が所定速度差となるように各駆動力付与手段が各車輪に駆動力を付与した際に、
前記前後輪駆動力調整装置を作動したときの、前記駆動力検出手段により検出された前輪の駆動力変化と変化時間に基づき、前記前後輪駆動力調整装置の作動状態を判定するとともに、
前記左右輪駆動力調整装置を作動したときの、前記駆動力検出手段により検出された後方側の右側車輪と左側車輪の駆動力変化と変化時間に基づき、前記左右輪駆動力調整装置の作動状態を判定することを特徴とする請求項1記載の完成車両検査装置。
Before Symbol judging means, when the speed difference between the wheels and the front wheels after detected by the speed detecting means is the driving force providing means so that the predetermined speed difference has been applying a driving force to each wheel,
While determining the operating state of the front and rear wheel driving force adjusting device based on the driving force change and change time of the front wheel detected by the driving force detecting means when the front and rear wheel driving force adjusting device is operated ,
The operating state of the left and right wheel driving force adjusting device based on the driving force change and change time of the rear right wheel and the left wheel detected by the driving force detecting means when the left and right wheel driving force adjusting device is operated. complete vehicle testing apparatus according to claim 1, wherein the determining.
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JPH0663923B2 (en) * 1986-12-11 1994-08-22 トヨタ自動車株式会社 Shiashi Dynamo for four-wheel drive vehicles
JPH01191031A (en) * 1988-01-26 1989-08-01 Nissan Shatai Co Ltd System for confirming braking and driving system function of vehicle
JP3149497B2 (en) * 1992-01-16 2001-03-26 日産自動車株式会社 Test methods for automotive drive systems
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