WO2015025362A1 - Dump truck - Google Patents
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- WO2015025362A1 WO2015025362A1 PCT/JP2013/072193 JP2013072193W WO2015025362A1 WO 2015025362 A1 WO2015025362 A1 WO 2015025362A1 JP 2013072193 W JP2013072193 W JP 2013072193W WO 2015025362 A1 WO2015025362 A1 WO 2015025362A1
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- weight
- loading
- dump truck
- processing unit
- control processing
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- 238000001514 detection method Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 description 9
- 239000000725 suspension Substances 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/08—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles
- G01G19/10—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles having fluid weight-sensitive devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
- G01G23/36—Indicating the weight by electrical means, e.g. using photoelectric cells
- G01G23/365—Indicating the weight by electrical means, e.g. using photoelectric cells involving comparison with a reference value
Definitions
- the present invention relates to a dump truck, and more particularly to a dump truck provided with a device for measuring a load weight.
- the driver needs to know the load weight as soon as possible after loading is complete, so that the load weight does not exceed the rated value. Also, the manager of the mine needs to know the load weight as accurate as possible in order to calculate the cost.
- the measurement method of Patent Document 1 when loading is added after the start of traveling, the value is not updated, so there is a problem that the measurement accuracy is lowered. Further, in the measurement method of Patent Document 2, since the value fluctuates while the load travels, it can not be said that the driver is always convenient for use, and there is also a demand for improvement.
- the present invention has been made in view of the above-described situation, and it is an object of the present invention to provide a dump truck capable of calculating and displaying a load weight suitable for each purpose of a driver and a manager. To aim.
- the present invention provides a loading platform (3) for loading an object to be transported, a vehicle body (1) supporting the loading platform so as to be able to move up and down, and weight detection for detecting the loading weight of the loading platform (3).
- a control processing unit (11) that performs processing related to the loading weight of the loading platform (3) by using the device (10), a detection signal from the weight detection device (10) as an input, and displaying the loading weight of the loading platform (3)
- the control processing unit (11) is configured to load the dump truck (3) based on a detection signal from the weight detection device (10) during loading operation of the dump truck. Is displayed on the monitor (19) and it is determined that the loading operation of the dump truck is completed, the value of the load weight currently displayed on the monitor (19) is If you decide To, is characterized in that control to stop the updating of the subsequent the load weight display.
- the loading weight is determined immediately after the loading is completed, and thereafter the loading weight displayed on the monitor does not change, so that the loading weight can be displayed easily for the driver.
- the restriction can be activated during cargo conveyance to prevent the conveyance operation from being delayed.
- the dump truck measures a speed detector (8) for detecting the traveling speed, and measures a time during which the traveling speed detected by the speed detector (8) is maintained at a predetermined speed or more.
- the control processing unit (11) further includes a timer (13), and the control processing unit (11) determines that the loading weight of the loading platform (3) is a predetermined amount or more, and the traveling speed input from the speed detector (8) is a predetermined speed It may be determined that the loading operation is in the completed state when the above conditions are satisfied and the time measured by the timer (13) has passed a predetermined time.
- the loading weight can be determined with high accuracy.
- control unit (11) may further include a recording device (18) for recording a history of the load weight of the loading platform (3), the control processing unit (11) may detect the weight detection device while the dump truck is traveling stably. Based on the detection signal from (10), the measured value of the load weight of the loading platform (3) is internally held, and the measured value when traveling the most stably is recorded in the recording device (18) It is good also as composition.
- the dump truck according to the present invention has the above-described configuration, it is possible to calculate and display the load weight suitable for each purpose of the driver and the manager.
- the subject except having mentioned above, a structure, and an effect are clarified by description of the following embodiment.
- the dump truck according to the present embodiment is, as shown in FIG. 1, a vehicle body 1 having a cab 2, a loading platform 3 supported by the vehicle body 1 so as to be able to be raised and lowered, and loads (load objects)
- the platform control cylinder 4 is rotated at the upper side and the lower side, and at the front position closer to the cab 2 of the vehicle body 1 to the vehicle body 1, bed 3 and bed 3
- a rear suspension cylinder 5b for supporting a heavy object to be contained, and a speed detector 8 attached to a rear wheel shaft to measure the traveling speed of the vehicle body are provided.
- the control processing unit 11 for measuring the loading weight As shown in FIG. 2, the control processing unit 11 for measuring the loading weight, as shown in FIG. 2, a CPU 12 for performing calculations, a timer 13 for measuring the time during which a specific condition continues, and a ROM 15 for storing various processes (programs)
- the pressure sensors 6a and 6b attached to the four suspension cylinders 5a and 5b, the inclination sensor 7 for detecting the inclination of the vehicle body 1, and the speed detector 8 are connected to the input interface 14 of the control processing unit 11 and the recording device 18
- the monitor display device 19 is connected to the output interface 17 of the control processing unit 11.
- the load weight of the loading platform 3 is calculated based on the detection signals of the pressure sensors 6 a and 6 b and the inclination sensor 7. Therefore, the pressure sensors 6a, 6b and the inclination sensor 7 correspond to the "weight detection device" of the present invention.
- the control processing unit 11 calculates the loading weight by the CPU 12 based on the values detected by the pressure sensors 6a and 6b and the inclination sensor 7, and measures the loading weight.
- the control processing unit 11 determines the empty load state if the measured loaded weight is less than the threshold value, and determines the loaded state if the measured load weight is equal to or more than the threshold value (step S1).
- the control processing unit 11 determines that loading is started (Yes in step S2) when the measured load weight changes and becomes equal to or greater than the threshold (Yes in step S2).
- the load weight to be displayed on the device 19 is calculated (step S3), and the load weight is displayed on the monitor display device 19 based on the calculation result (step S4).
- step S2 When it is determined that loading is started (Yes in step S2), (a) loading weight is equal to or higher than the threshold, (b) traveling speed is several km / h or more (for example, 0.5 km / h) And the control processing unit 11 determines that loading is completed (step S5) when three conditions of (c) traveling speed of several km / h or more have elapsed for several seconds or more are satisfied (step S5). ). Note that meeting all the conditions (a) to (c) is the same as saying that the dump truck after loading completion is in the state immediately after departure.
- condition (a) when traveling is started during loading, condition (a) is not satisfied because the load weight is not equal to or greater than the threshold, but the duration of traveling is determined by the loading completion determination (condition (c))
- condition (c) the display of the loaded weight can be determined if the condition (c) is satisfied.
- step S6 the control processing unit 11 stops updating the display of the loaded weight. That is, the display of the load weight is determined.
- the load weight displayed on the monitor display device 19 is for the driver to grasp the amount loaded by the loading operation. Therefore, once the display of the load weight is confirmed, until the load is released. I try not to update.
- step S6 it is possible to prevent the display of the load weight from being changed under the influence of the traveling state or the state of the ground during traveling of the load, and realize the display of the load weight which is easy for the driver to use.
- the dump truck is provided with a function to restrict travel when the load weight exceeds the maximum load weight, it is possible to prevent the restriction operation from being carried out during load transportation and the transportation operation being delayed.
- step S7 When loading is completed and traveling is started, calculation of the loading weight for the administrator is started, and the loading weight for the administrator is updated based on the loading weight measured each time the traveling state becomes more stable, and the control processing unit 11 The measured value is held in the RAM 16 of (step S7). That is, since the measured value when the traveling is most stable is temporarily stored in the RAM 16, the most accurate value can be known.
- the control processing unit 11 outputs the measurement value data of the load weight stored in the RAM 16 as the load weight for the administrator, and causes the recording device 18 to record the output measurement value data (step S10).
- the manager can know the loaded weight with high accuracy by checking the loaded weight history of the recording device 18.
- the loading weight displayed on the monitor display device 19 is determined when it is determined that loading is completed, the display of the loading weight can be easily understood. It will be easy to use.
- the load weight at the time of releasing the soil is accurately recorded in the recording device 18 for the manager, the control accuracy of the load weight can be enhanced.
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Abstract
A carried weight is calculated and displayed in accordance with the respective purpose of a driver and a manager. A dump truck is provided with: a carrying deck (3) for carrying a transport object; a vehicle body (1) that supports the carrying deck in a tiltable manner; a weight detection device (10) that detects the carried weight of the carrying deck; a control processing unit (11) that performs a process regarding the carried weight of the carrying deck using a detection signal from the weight detection device as an input; and a monitor (19) that displays the carried weight of the carrying deck. The control processing unit displays the carried weight of the carrying deck on the monitor on the basis of the detection signal from the weight detection device during a dump truck loading operation, and, when it is determined that the dump truck loading operation has been completed, finalizes the carried weight value currently being displayed on the monitor and implements control to stop subsequent updating of the display of the carried weight.
Description
本発明は、ダンプトラックに関し、特に、積載重量を計測する装置を備えたダンプトラックに関する。
The present invention relates to a dump truck, and more particularly to a dump truck provided with a device for measuring a load weight.
ダンプトラックの運搬作業は、最適な積載重量で行う必要があるため、積載重量を計測するための装置が搭載されている。しかし、走行状態や路面の凹凸、車体各部の摩擦の影響により積荷量の計測精度が変化してしまう。この対策として、積込完了時、走行中、放土前の特定の作業時に計測を行なう手法（特許文献１）や、走行状態や地面の状態の影響が少ないタイミングで計測を行なう手法（特許文献２）が公知である。
Since it is necessary to carry out the dump truck transportation operation with an optimum load weight, a device for measuring the load weight is mounted. However, the measurement accuracy of the load amount changes due to the influence of the traveling state, the unevenness of the road surface, and the friction of each part of the vehicle body. As measures against this, a method of performing measurement at a specific operation at loading completion, during traveling, and before earth release (Patent Document 1), or a method of performing measurement at timing at which influence of traveling state or ground condition is small 2) is known.
運転者は積載重量が定格値を超えないようにするために、積込完了後できるたけ早く積載重量を知る必要がある。また、鉱山の管理者はコストの計算などを行なうために、出来るだけ正確な積載重量を知る必要がある。しかし、特許文献１の計測手法では、走行開始後に積込が追加された場合に値が更新されないため、計測精度が低下するという課題がある。また、特許文献２の計測手法では積荷走行中に値が変動してしまうため、運転者にとっては必ずしも使い勝手の良いものとは言えず、改良して欲しいとの要請もある。
The driver needs to know the load weight as soon as possible after loading is complete, so that the load weight does not exceed the rated value. Also, the manager of the mine needs to know the load weight as accurate as possible in order to calculate the cost. However, in the measurement method of Patent Document 1, when loading is added after the start of traveling, the value is not updated, so there is a problem that the measurement accuracy is lowered. Further, in the measurement method of Patent Document 2, since the value fluctuates while the load travels, it can not be said that the driver is always convenient for use, and there is also a demand for improvement.
本発明は、上述した実状に鑑みてなされたものであり、その目的は、運転者及び管理者のそれぞれの目的に適した積載重量の計算と表示を行うことのできるダンプトラックを提供することを目的とする。
The present invention has been made in view of the above-described situation, and it is an object of the present invention to provide a dump truck capable of calculating and displaying a load weight suitable for each purpose of a driver and a manager. To aim.
上記目的を達成するため、本発明は、運搬対象物を積載する荷台（３）と、この荷台を起伏可能に支持する車体（１）と、前記荷台（３）の積載重量を検出する重量検出装置（１０）と、この重量検出装置（１０）からの検知信号を入力として前記荷台（３）の積載重量に関する処理を行う制御処理部（１１）と、前記荷台（３）の積載重量を表示するモニタ（１９）と、を備えたダンプトラックにおいて、前記制御処理部（１１）は、前記ダンプトラックの積込作業中における前記重量検出装置（１０）からの検出信号に基づいて前記荷台（３）の積載重量を前記モニタ（１９）に表示し、前記ダンプトラックの積込作業が完了した状態であると判断した場合には、前記モニタ（１９）に現在表示されている積載重量の値を確定させると共に、それ以降の前記積載重量の表示の更新を停止させるように制御することを特徴としている。
In order to achieve the above object, the present invention provides a loading platform (3) for loading an object to be transported, a vehicle body (1) supporting the loading platform so as to be able to move up and down, and weight detection for detecting the loading weight of the loading platform (3). A control processing unit (11) that performs processing related to the loading weight of the loading platform (3) by using the device (10), a detection signal from the weight detection device (10) as an input, and displaying the loading weight of the loading platform (3) And the control processing unit (11) is configured to load the dump truck (3) based on a detection signal from the weight detection device (10) during loading operation of the dump truck. Is displayed on the monitor (19) and it is determined that the loading operation of the dump truck is completed, the value of the load weight currently displayed on the monitor (19) is If you decide To, is characterized in that control to stop the updating of the subsequent the load weight display.
本発明によれば、積込が完了した後すぐに積載重量が確定し、その後はモニタに表示される積載重量が変化しないため、運転者にとって分かりやすい積載重量表示が行える。また、ダンプトラックが最大積載重量を超えた場合に走行を制限する機能を有するような場合は、積荷運搬中に当該制限が作動して運搬作業が滞ることを防ぐことができる。
According to the present invention, the loading weight is determined immediately after the loading is completed, and thereafter the loading weight displayed on the monitor does not change, so that the loading weight can be displayed easily for the driver. In addition, in the case where the dump truck has a function of restricting traveling when the maximum load weight is exceeded, the restriction can be activated during cargo conveyance to prevent the conveyance operation from being delayed.
また、上記構成において、前記ダンプトラックは、走行速度を検出する速度検出器（８）と、この速度検出器（８）で検出された走行速度が所定速度以上を保持している時間を計測するタイマ（１３）とをさらに備え、前記制御処理部（１１）は、前記荷台（３）の積載重量が所定量以上であること、前記速度検出器（８）から入力された走行速度が所定速度以上であること、及び前記タイマ（１３）の計測時間が所定時間を経過していること、の各条件が成立したときに、前記積込作業完了状態であると判断するようにしても良い。
In the above configuration, the dump truck measures a speed detector (8) for detecting the traveling speed, and measures a time during which the traveling speed detected by the speed detector (8) is maintained at a predetermined speed or more. The control processing unit (11) further includes a timer (13), and the control processing unit (11) determines that the loading weight of the loading platform (3) is a predetermined amount or more, and the traveling speed input from the speed detector (8) is a predetermined speed It may be determined that the loading operation is in the completed state when the above conditions are satisfied and the time measured by the timer (13) has passed a predetermined time.
この発明によれば、積込完了状態を正確に判定することができるので、積載重量を精度良く確定することができる。
According to the present invention, since the loading completion state can be accurately determined, the loading weight can be determined with high accuracy.
また、上記構成において、前記荷台（３）の積載重量の履歴を記録する記録装置（１８）をさらに備え、前記制御処理部（１１）は、前記ダンプトラックが安定走行中は、前記重量検出装置（１０）からの検出信号に基づいて前記荷台（３）の積載重量の計測値を内部に保持し、最も安定して走行していたときの前記計測値を前記記録装置（１８）に記録させる構成としても良い。
In the above configuration, the control unit (11) may further include a recording device (18) for recording a history of the load weight of the loading platform (3), the control processing unit (11) may detect the weight detection device while the dump truck is traveling stably. Based on the detection signal from (10), the measured value of the load weight of the loading platform (3) is internally held, and the measured value when traveling the most stably is recorded in the recording device (18) It is good also as composition.
この発明によれば、運転者を紛らわせることがなく、しかも、より高精度の積載重量を管理者に知らせることができる。
According to the present invention, it is possible to notify the manager of the load weight with higher accuracy without causing the driver to be confused.
本発明に係るダンプトラックは、上記した構成を備えているので、運転者及び管理者のそれぞれの目的に適した積載重量の計算と表示を行うことができる。なお、上記した以外の課題、構成及び効果は、以下の実施形態の説明により明らかにされる。
Since the dump truck according to the present invention has the above-described configuration, it is possible to calculate and display the load weight suitable for each purpose of the driver and the manager. In addition, the subject except having mentioned above, a structure, and an effect are clarified by description of the following embodiment.
以下、本発明の実施形態に係るダンプトラックを、図を用いて説明する。本実施形態に係るダンプトラックは、図１に示すように、運転室２を有する車体１と、この車体１に起伏可能に支持され、積荷（運搬対象物）が積み込まれる荷台３と、この荷台３を一点鎖線で示すように上方向、下方向に回動させる荷台操作シリンダ４と、車体１の運転室２に近づく側である前側位置に配置され、車体１、荷台３、及び荷台３に積み込まれた積荷を含む重量物を支持する前側サスペンションシリンダ５ａと、車体１の運転室２から離れる側である後側位置に配置され、車体１、荷台３、及び荷台３に積み込まれた積荷を含む重量物を支持する後側サスペンションシリンダ５ｂと、車体の走行速度を計測するために後輪軸に取り付けられた速度検出器８と、を備えている。
Hereinafter, a dump truck according to an embodiment of the present invention will be described with reference to the drawings. The dump truck according to the present embodiment is, as shown in FIG. 1, a vehicle body 1 having a cab 2, a loading platform 3 supported by the vehicle body 1 so as to be able to be raised and lowered, and loads (load objects) As shown by the dashed-dotted line, the platform control cylinder 4 is rotated at the upper side and the lower side, and at the front position closer to the cab 2 of the vehicle body 1 to the vehicle body 1, bed 3 and bed 3 A front suspension cylinder 5a for supporting a heavy load including a loaded load, and a rear position which is a side away from the cab 2 of the vehicle body 1 and which is loaded on the vehicle body 1, the loading platform 3 and the loading platform 3 A rear suspension cylinder 5b for supporting a heavy object to be contained, and a speed detector 8 attached to a rear wheel shaft to measure the traveling speed of the vehicle body are provided.
積載重量を計測する制御処理部１１は、図２に示すように、演算を行うＣＰＵ１２と、特定の条件が継続している時間を計測するタイマ１３と、各種処理（プログラム）を保存するＲＯＭ１５と、変数値や荷重計測の結果である荷重データを保存するＲＡＭ１６と、センサ入力や通信を行う入力インターフェース１４と、ＣＰＵ１２の演算結果をモニタ表示装置１９や記録装置１９へ出力する出力インターフェース１７と、を有する。
As shown in FIG. 2, the control processing unit 11 for measuring the loading weight, as shown in FIG. 2, a CPU 12 for performing calculations, a timer 13 for measuring the time during which a specific condition continues, and a ROM 15 for storing various processes (programs) A RAM 16 for storing load data as a variable value and a load measurement result, an input interface 14 for sensor input and communication, and an output interface 17 for outputting the calculation result of the CPU 12 to the monitor display device 19 and the recording device 19; Have.
４本のサスペンションシリンダ５ａ、５ｂに取り付けられた圧力センサ６ａ、６ｂ、車体１の傾斜を検出する傾斜センサ７、及び速度検出器８は制御処理部１１の入力インターフェース１４と接続され、記録装置１８及びモニタ表示装置１９は制御処理部１１の出力インターフェース１７と接続されている。この構成により、各種センサからの検出信号やセンサデータは入力インターフェース１４を介して制御処理部１１に取り込まれ、各種演算等が行われた後に、出力インターフェース１７を介して記録装置１８及びモニタ表示装置１９に出力される。そして、モニタ表示装置１９に計測値が表示されたり、記録装置１８に各種データが記録されたりする。
The pressure sensors 6a and 6b attached to the four suspension cylinders 5a and 5b, the inclination sensor 7 for detecting the inclination of the vehicle body 1, and the speed detector 8 are connected to the input interface 14 of the control processing unit 11 and the recording device 18 The monitor display device 19 is connected to the output interface 17 of the control processing unit 11. With this configuration, detection signals and sensor data from various sensors are taken into the control processing unit 11 through the input interface 14, and after various calculations and the like are performed, the recording device 18 and the monitor display device through the output interface 17 It is output to 19. Then, measurement values are displayed on the monitor display device 19 and various data are recorded on the recording device 18.
なお、本実施形態では、圧力センサ６ａ、６ｂ及び傾斜センサ７の検出信号に基づいて荷台３の積載重量を演算している。よって、この圧力センサ６ａ、６ｂ及び傾斜センサ７とが本発明の「重量検出装置」に相当する。
In the present embodiment, the load weight of the loading platform 3 is calculated based on the detection signals of the pressure sensors 6 a and 6 b and the inclination sensor 7. Therefore, the pressure sensors 6a, 6b and the inclination sensor 7 correspond to the "weight detection device" of the present invention.
次に、制御処理部１１の処理内容について図３を用いて説明する。制御処理部１１は、圧力センサ６ａ、６ｂ及び傾斜センサ７で検出された値に基づいてＣＰＵ１２で積載重量を演算して積載重量を計測する。制御処理部１１は、計測された積載重量が閾値未満であれば空荷状態と判定し、閾値以上であれば積荷状態と判定する（ステップＳ１）。空荷状態と判定された場合（ステップＳ１でＹｅｓ）において、計測された積載重量が変化して閾値以上になると、制御処理部１１は積込開始と判定し（ステップＳ２でＹｅｓ）、モニタ表示装置１９に表示するための積載重量を計算し（ステップＳ３）、その計算結果に基づいて積載重量をモニタ表示装置１９に表示する（ステップＳ４）。
Next, processing contents of the control processing unit 11 will be described with reference to FIG. The control processing unit 11 calculates the loading weight by the CPU 12 based on the values detected by the pressure sensors 6a and 6b and the inclination sensor 7, and measures the loading weight. The control processing unit 11 determines the empty load state if the measured loaded weight is less than the threshold value, and determines the loaded state if the measured load weight is equal to or more than the threshold value (step S1). When it is determined that the load is empty (Yes in step S1), the control processing unit 11 determines that loading is started (Yes in step S2) when the measured load weight changes and becomes equal to or greater than the threshold (Yes in step S2). The load weight to be displayed on the device 19 is calculated (step S3), and the load weight is displayed on the monitor display device 19 based on the calculation result (step S4).
積込開始と判定された場合（ステップＳ２でＹｅｓ）において、（ａ）積載重量が閾値以上であること、（ｂ）走行速度が数ｋｍ／ｈ以上（例えば、０．５ｋｍ／ｈ）の状態であること、（ｃ）走行速度が数ｋｍ／ｈ以上の状態が数秒以上経過していること、の３つの条件を満たす場合には、制御処理部１１は積込完了と判定する（ステップＳ５）。なお、（ａ）～（ｃ）の条件を全て満たすということは、積込完了後のダンプトラックが発車直後の状態であるということと同じである。なお、積込途中で走行を開始した場合、積載重量が閾値以上になっていないため条件（ａ）を満たさないことになるが、この積込完了判定に走行の継続時間（条件（ｃ））を含めることにより、条件（ａ）を満たさない場合であっても条件（ｃ）を満たす場合には積載重量の表示を確定させることができる。
When it is determined that loading is started (Yes in step S2), (a) loading weight is equal to or higher than the threshold, (b) traveling speed is several km / h or more (for example, 0.5 km / h) And the control processing unit 11 determines that loading is completed (step S5) when three conditions of (c) traveling speed of several km / h or more have elapsed for several seconds or more are satisfied (step S5). ). Note that meeting all the conditions (a) to (c) is the same as saying that the dump truck after loading completion is in the state immediately after departure. In addition, when traveling is started during loading, condition (a) is not satisfied because the load weight is not equal to or greater than the threshold, but the duration of traveling is determined by the loading completion determination (condition (c)) By including the above, even if the condition (a) is not satisfied, the display of the loaded weight can be determined if the condition (c) is satisfied.
積込完了と判定されると、制御処理部１１は積載重量の表示の更新を停止する（ステップＳ６）。即ち、積載重量の表示が確定する。モニタ表示装置１９に表示する積載重量は、積込作業によって積載された量を運転者が把握するためのものであるから、一旦積載重量の表示を確定させた後は、積荷を放土するまで更新しないようにしている。このステップＳ６によって、積荷走行中に走行状態や地面の状態の影響を受けて積載重量の表示が変化してしまうことを防ぎ、運転者にとって使いやすい積載重量の表示を実現できる。また、積載重量が最大積載重量を超えた場合に走行を制限する機能がダンプトラックに備えられている場合には、積荷運搬中に制限が作動して運搬作業が滞ってしまうことを防止できる。
If it is determined that the loading is completed, the control processing unit 11 stops updating the display of the loaded weight (step S6). That is, the display of the load weight is determined. The load weight displayed on the monitor display device 19 is for the driver to grasp the amount loaded by the loading operation. Therefore, once the display of the load weight is confirmed, until the load is released. I try not to update. By this step S6, it is possible to prevent the display of the load weight from being changed under the influence of the traveling state or the state of the ground during traveling of the load, and realize the display of the load weight which is easy for the driver to use. In addition, when the dump truck is provided with a function to restrict travel when the load weight exceeds the maximum load weight, it is possible to prevent the restriction operation from being carried out during load transportation and the transportation operation being delayed.
積込が完了し走行を開始すると、管理者用の積載重量計算が開始され、走行状態がより安定する度に計測した積載重量に基づいて管理者用の積載重量を更新して制御処理部１１のＲＡＭ１６にその計測値が保持される（ステップＳ７）。即ち、最も走行が安定しているときの計測値がＲＡＭ１６に一時的に記憶されることになるため、最も精度の良い値を知ることができる。
When loading is completed and traveling is started, calculation of the loading weight for the administrator is started, and the loading weight for the administrator is updated based on the loading weight measured each time the traveling state becomes more stable, and the control processing unit 11 The measured value is held in the RAM 16 of (step S7). That is, since the measured value when the traveling is most stable is temporarily stored in the RAM 16, the most accurate value can be known.
計測した積載重量が閾値以下になると放土と判定し（ステップＳ８でＹｅｓ）、放土されたことを運転者に伝えるため表示用の積載重量を更新する（ステップＳ９）。制御処理部１１は、ＲＡＭ１６に記憶されている積載重量の計測値データを管理者用の積載重量として出力し、記録装置１８にその出力した計測値データを記録させる（ステップＳ１０）。管理者は記録装置１８の積載重量履歴を確認することで、精度の良い積載重量を知ることができる。
When the measured loading weight becomes equal to or less than the threshold value, it is determined that the soil is released (Yes in step S8), and the loading weight for display is updated to inform the driver of the release (step S9). The control processing unit 11 outputs the measurement value data of the load weight stored in the RAM 16 as the load weight for the administrator, and causes the recording device 18 to record the output measurement value data (step S10). The manager can know the loaded weight with high accuracy by checking the loaded weight history of the recording device 18.
以上説明したように、本実施形態に係るダンプトラックによれば、積込完了と判定された時点でモニタ表示装置１９に表示される積載重量が確定するため、積載重量の表示が分かり易くなり、使い勝手の良いものとなる。また、管理者に対しては放土する時点での積載重量が正確に記録装置１８に記録されているから、積載重量の管理精度を高めることができる。
As described above, according to the dump truck according to the present embodiment, since the loading weight displayed on the monitor display device 19 is determined when it is determined that loading is completed, the display of the loading weight can be easily understood. It will be easy to use. In addition, since the load weight at the time of releasing the soil is accurately recorded in the recording device 18 for the manager, the control accuracy of the load weight can be enhanced.
なお、上記した実施形態例は、本発明の説明のための例示であり、本発明の範囲をそれらの実施形態例にのみ限定する趣旨ではない。当業者は、本発明の要旨を逸脱することなしに、他の様々な態様で本発明を実施することができる。
In addition, the above-mentioned embodiment is an illustration for description of this invention, and it is not the meaning which limits the scope of the present invention only to those embodiments. Those skilled in the art can practice the present invention in various other aspects without departing from the scope of the present invention.
１ 車体
３ 荷台
６ａ，６ｂ 圧力センサ（重量検出装置）
７ 傾斜センサ（重量検出装置）
８ 速度検出器
１０ 重量検出装置
１１ 制御処理部
１３ タイマ
１８ 記録装置
１９ モニタ表示装置（モニタ） 1vehicle body 3 loading platform 6a, 6b pressure sensor (weight detection device)
7 Tilt sensor (weight detection device)
8Speed Detector 10 Weight Detection Device 11 Control Processing Unit 13 Timer 18 Recording Device 19 Monitor Display Device (Monitor)
３ 荷台
６ａ，６ｂ 圧力センサ（重量検出装置）
７ 傾斜センサ（重量検出装置）
８ 速度検出器
１０ 重量検出装置
１１ 制御処理部
１３ タイマ
１８ 記録装置
１９ モニタ表示装置（モニタ） 1
7 Tilt sensor (weight detection device)
8
Claims (3)
- 運搬対象物を積載する荷台（３）と、この荷台を起伏可能に支持する車体（１）と、前記荷台（３）の積載重量を検出する重量検出装置（１０）と、この重量検出装置（１０）からの検知信号を入力として前記荷台（３）の積載重量に関する処理を行う制御処理部（１１）と、前記荷台（３）の積載重量を表示するモニタ（１９）と、を備えたダンプトラックにおいて、
前記制御処理部（１１）は、前記ダンプトラックの積込作業中における前記重量検出装置（１０）からの検出信号に基づいて前記荷台（３）の積載重量を前記モニタ（１９）に表示し、前記ダンプトラックの積込作業が完了した状態であると判断した場合には、前記モニタ（１９）に現在表示されている積載重量の値を確定させると共に、それ以降の前記積載重量の表示の更新を停止させるように制御することを特徴とするダンプトラック。 A loading platform (3) for loading an object to be transported, a car body (1) supporting the loading platform so as to be able to be raised and lowered, a weight detection device (10) for detecting the loading weight of the loading platform (3) Dump with a control processing unit (11) that performs processing on the loading weight of the loading platform (3) by using a detection signal from 10) as an input, and a monitor (19) that displays the loading weight of the loading platform (3) In the track,
The control processing unit (11) displays the loading weight of the loading platform (3) on the monitor (19) based on a detection signal from the weight detection device (10) during the loading operation of the dump truck. If it is determined that the loading operation of the dump truck is completed, the value of the loading weight currently displayed on the monitor (19) is determined, and the display of the loading weight is updated thereafter A dump truck characterized by being controlled to stop. - 請求項１において、
前記ダンプトラックは、走行速度を検出する速度検出器（８）と、この速度検出器（８）で検出された走行速度が所定速度以上を保持している時間を計測するタイマ（１３）とをさらに備え、前記制御処理部（１１）は、前記荷台（３）の積載重量が所定量以上であること、前記速度検出器（８）から入力された走行速度が所定速度以上であること、及び前記タイマ（１３）の計測時間が所定時間を経過していること、の各条件が成立したときに、前記積込作業完了状態であると判断するようにしたことを特徴とするダンプトラック。 In claim 1,
The dump truck includes a speed detector (8) for detecting a traveling speed, and a timer (13) for measuring a time during which the traveling speed detected by the speed detector (8) holds a predetermined speed or more. The control processing unit (11) may further include: the loading weight of the loading platform (3) is equal to or greater than a predetermined amount; A dump truck characterized in that the loading operation completion state is determined when each condition of the time measured by the timer (13) has passed a predetermined time. - 請求項１において、
前記荷台（３）の積載重量の履歴を記録する記録装置（１８）をさらに備え、
前記制御処理部（１１）は、前記ダンプトラックが安定走行中は、前記重量検出装置（１０）からの検出信号に基づいて前記荷台（３）の積載重量の計測値を内部に保持し、最も安定して走行していたときの前記計測値を前記記録装置（１８）に記録させることを特徴とするダンプトラック。 In claim 1,
It further comprises a recording device (18) for recording the history of the load weight of the loading platform (3),
The control processing unit (11) internally holds the measured value of the load weight of the loading platform (3) based on the detection signal from the weight detection device (10) while the dump truck is in stable traveling, A dump truck characterized in that the measured value when traveling stably is recorded in the recording device (18).
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| PCT/JP2013/072193 WO2015025362A1 (en) | 2013-08-20 | 2013-08-20 | Dump truck |
| JP2015532604A JP6027248B2 (en) | 2013-08-20 | 2013-08-20 | Dump truck |
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| PCT/JP2013/072193 WO2015025362A1 (en) | 2013-08-20 | 2013-08-20 | Dump truck |
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| JP2017095061A (en) * | 2015-11-27 | 2017-06-01 | 日立建機株式会社 | Dump truck |
| US11577627B2 (en) | 2019-12-06 | 2023-02-14 | Toyota Jidosha Kabushiki Kaisha | Control device for fuel cell vehicle and fuel cell vehicle |
| CN115742992A (en) * | 2022-10-28 | 2023-03-07 | 鞍钢集团矿业有限公司 | Truck compartment lifting and falling recognition device and method based on horizontal inclinometer |
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| JP6027248B2 (en) | 2016-11-16 |
| JPWO2015025362A1 (en) | 2017-03-02 |
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