WO2018110492A1 - Device for determining oil changing period - Google Patents

Device for determining oil changing period Download PDF

Info

Publication number
WO2018110492A1
WO2018110492A1 PCT/JP2017/044340 JP2017044340W WO2018110492A1 WO 2018110492 A1 WO2018110492 A1 WO 2018110492A1 JP 2017044340 W JP2017044340 W JP 2017044340W WO 2018110492 A1 WO2018110492 A1 WO 2018110492A1
Authority
WO
WIPO (PCT)
Prior art keywords
oil
deterioration
degree
calculation unit
torque
Prior art date
Application number
PCT/JP2017/044340
Other languages
French (fr)
Japanese (ja)
Inventor
祐久 福田
Original Assignee
いすゞ自動車株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by いすゞ自動車株式会社 filed Critical いすゞ自動車株式会社
Priority to CN201780073694.3A priority Critical patent/CN110023600B/en
Publication of WO2018110492A1 publication Critical patent/WO2018110492A1/en
Priority to PH12019501160A priority patent/PH12019501160A1/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/10—Indicating devices; Other safety devices

Definitions

  • This disclosure relates to an oil change time determination device.
  • Oil deterioration does not progress relatively when the conditions of use of the vehicle are gentle (for example, constant speed driving on a highway).
  • the deterioration of oil proceeds relatively when vehicle usage conditions are severe (for example, traveling repeatedly repeating acceleration and deceleration on a general road).
  • the deterioration of oil varies in the way it is used.
  • the oil change is performed at a regular oil change time (for example, a uniform travel distance of 50,000 km or one year) regardless of the conditions of use of the vehicle.
  • a regular oil change time for example, a uniform travel distance of 50,000 km or one year
  • the oil is changed even if the oil has not deteriorated at the regular oil replacement time.
  • vehicle use conditions are severe with respect to oil deterioration, even if oil deterioration has progressed, it is used without oil replacement until a regular oil replacement time. As a result, parts such as gears, bearings, and oil seals are damaged.
  • Patent Document 1 discloses a device that issues an oil replacement time alarm according to an integrated value of engine operating time.
  • the oil has not deteriorated for a long time when the operating time of the engine is long when the conditions of use of the vehicle are gentle.
  • the operating time is degraded for a short time.
  • there is no simple proportional relationship between the operating time and the deterioration state of the oil and simply determining the oil replacement time based on the operating time may not be able to accurately determine the oil replacement time. There was a problem.
  • This disclosure is to provide an oil change time determination device capable of accurately determining the oil change time.
  • the oil change time determination device of the present disclosure is: A calculation unit for calculating the degree of deterioration of the oil based on the torque of the engine; A determination unit that determines an oil replacement time based on the degree of deterioration calculated by the calculation unit; Have
  • the oil change time determination method of the present disclosure is: Calculate the degree of oil deterioration based on the engine torque, Based on the calculated degree of deterioration, the oil replacement time is determined.
  • FIG. 1 is a block diagram illustrating an example of a configuration of an oil replacement time determination device according to an embodiment of the present disclosure.
  • FIG. 2 is a diagram illustrating weighting factors related to the degradation element.
  • FIG. 3 is a flowchart showing an example of the operation of the oil change time determination device.
  • FIG. 1 is a block diagram illustrating an example of an oil change time determination device according to the present disclosure.
  • the master controller 1, the engine control device 2, and the oil change time display unit 3 are connected to each other via a common bus 4 to form an in-vehicle serial communication network.
  • the reset device 5 is directly connected to the master controller 1.
  • the master controller 1 executes the processing program shown in FIG.
  • the engine control device 2 inputs operation information such as vehicle speed, accelerator opening, engine speed, travel distance, and oil temperature from each sensor and outputs a fuel injection amount as necessary.
  • the engine control device 2 generates a pulse signal in proportion to the number of rotations of the axle of the vehicle, and obtains the vehicle speed from the number of pulse signals per hour, assuming that vehicle movement is proportional to the number of pulse signals. . Further, the engine control device 2 acquires the accelerator opening based on, for example, the depression amount of an accelerator pedal (not shown) from the accelerator opening sensor. Moreover, the engine control apparatus 2 acquires an engine speed based on the signal from a rotary encoder, for example. Further, the engine control device 2 acquires a travel distance from, for example, a cumulative total distance meter. Moreover, the engine control apparatus 2 acquires oil temperature from an oil thermometer, for example.
  • the engine control device 2 includes a memory 22 and stores the above driving information such as a vehicle speed every predetermined time in the memory 22.
  • the master controller 1 (corresponding to the “oil change timing determination device” of the present disclosure) includes a calculation unit 12, a determination unit 14, an engine torque map (not shown), and a lookup table (not shown).
  • the engine torque map is a table showing the relationship between the accelerator opening and the engine speed and the engine output torque (hereinafter abbreviated as “torque”).
  • the look-up table is a table that stores in advance the amount of deterioration per predetermined time related to a deterioration element that causes oil deterioration.
  • the deterioration factors include torque, vehicle speed, travel distance, oil temperature, and the like.
  • the master controller 1 causes the oil change time display unit 3 to display oil change time information (oil required change information, remaining mileage information, etc.) based on the determination result of the determination unit 14 described later.
  • the master controller 1 causes the oil change time display unit 3 to display initialization information (such as information about oil change) input from the reset device 5.
  • the calculation unit 12 calculates torque for each predetermined time with reference to the engine torque map based on the accelerator opening and the engine speed for each predetermined time read from the memory 22.
  • the calculation unit 12 calculates a deterioration amount for each predetermined time with reference to the lookup table based on the calculated torque for each predetermined time, adds the deterioration amount to the already calculated deterioration amount, and relates to the torque. Find the integrated value of the amount of deterioration.
  • the integrated value of the deterioration amount related to the vehicle speed, travel distance, and oil temperature is obtained in the same manner as the integrated value of the deterioration amount related to the torque.
  • the calculation unit 12 refers to the look-up table based on the vehicle speed for each predetermined time read from the memory 22 and calculates the deterioration amount for each predetermined time. The amount is added to the already calculated deterioration amount to obtain an integrated value of the deterioration amount related to the vehicle speed.
  • the degree of deterioration of oil is evaluated by, for example, the amount of sludge and friction powder mixed in the oil and the oil temperature.
  • the influence on the mixing amount of the friction powder is, for example, that the torque is relatively large and the travel distance is relatively small.
  • the influence on the oil temperature is, for example, that the torque is relatively large, and the vehicle speed, travel distance, continuous travel time, and atmospheric temperature are small.
  • FIG. 2 is a diagram illustrating an example of a weighting factor related to a degradation element.
  • FIG. 2 shows a weight coefficient “1” relating to torque and oil temperature having a relatively large influence on oil deterioration, and a weight coefficient “0.2” relating to a relatively small vehicle speed and travel distance.
  • the calculation unit 12 calculates the degree of deterioration using a weighting factor related to torque and deterioration factors. Specifically, the calculation unit 12 weights the integrated values of the deterioration amounts related to the deterioration factors of torque, vehicle speed, travel distance, and oil temperature with weighting factors shown in FIG. The calculation unit 12 calculates the degree of deterioration of the oil based on the integrated value of the deterioration amount regarding each weighted deterioration element (for example, based on a value obtained by multiplying the integrated value of each deterioration amount).
  • the master controller 1 stores the calculated deterioration degree in the internal memory.
  • the determination unit 14 compares the deterioration degree with a predetermined threshold value, and determines whether or not the deterioration degree is equal to or greater than the predetermined threshold value.
  • the determination unit 14 outputs oil change timing information (oil required change information) that requires oil change when the degree of deterioration is equal to or greater than a predetermined threshold. Further, when the degree of deterioration is less than a predetermined threshold, the determination unit 14 outputs oil change timing information (remaining travel distance information) that is a travel distance until the oil change is necessary.
  • FIG. 3 is a flowchart showing the operation of the oil change time determination device. This flow is started by starting the engine. Further, the engine control device 2 inputs the accelerator opening and the engine speed every predetermined time, and stores them in the memory 22. Further, the engine control device 2 inputs deterioration factors of the vehicle speed, the travel distance, and the oil temperature for each predetermined time, and stores them in the memory 22.
  • step S110 the calculation unit 12 calculates the engine torque with reference to the engine torque map based on the accelerator opening and the engine speed for each predetermined time read from the memory 22.
  • step S120 the calculation unit 12 refers to the look-up table based on the calculated torque for each predetermined time and each deterioration factor, calculates the deterioration amount for each predetermined time, and integrates the already calculated deterioration amount. Then, the integrated value of the deterioration amount is obtained.
  • step S130 the calculation unit 12 uses the weighting coefficient shown in FIG.
  • the calculation unit 12 calculates the degree of deterioration of the oil based on the weighted integrated value of the deterioration amounts.
  • step S140 the determination unit 14 determines whether or not the degree of deterioration is equal to or greater than a predetermined threshold value.
  • step S140 When the degree of deterioration is equal to or greater than a predetermined threshold (step S140: YES), the master controller 1 displays oil change information on the oil change time display unit 3 (step S150).
  • step S140 When the degree of deterioration is less than the predetermined threshold (step S140: NO), the master controller 1 displays the remaining travel distance information on the oil change time display unit 3 (step S160).
  • the calculation unit 12 calculates the degree of deterioration of oil based on the engine torque, the vehicle speed, the travel distance, and the oil temperature.
  • the oil change time is determined based on the degree of deterioration. As a result, it is possible to accurately determine the oil replacement time.
  • the oil change timing can be accurately determined, the oil change can be performed at the best timing according to the oil deterioration. This makes it possible to reduce the maintenance cost by extending the oil change period for vehicles that are easy to use, etc., and for gears, bearings, and oil seals by replacing oil at an early stage for vehicles that have severe use conditions. It is possible to prevent the breakdown of the parts.
  • the calculation unit 12 calculates the degree of deterioration of the oil using weighting factors related to torque, vehicle speed, travel distance, and oil temperature. Thereby, since the use condition of a vehicle becomes in line with an actual use condition, determination of an oil replacement time can be performed more correctly.
  • the calculation unit 12 calculates the degree of oil deterioration based on the respective deterioration factors of torque, vehicle speed, travel distance, and oil temperature.
  • the present disclosure is not limited thereto, and the calculation unit 12 is not limited thereto. May calculate the degree of oil deterioration based on the torque, and the calculation unit 12 may calculate the degree of deterioration based on the torque and at least one deterioration factor of the vehicle speed, the travel distance, and the oil temperature. Also good.
  • the engine control apparatus 2 acquired oil temperature from the sensor, this indication is not restricted to this,
  • the engine control apparatus 2 is torque, vehicle speed, continuous running time, and atmospheric temperature.
  • the oil temperature may be calculated by substituting into a predetermined logical expression.
  • a timer may be used as a timer for measuring the continuous running time.
  • an air temperature sensor for example, an outside air temperature sensor of an air conditioner may also be used.
  • the oil change time determination device of the present disclosure is useful as a vehicle equipped with an engine that is required to determine the oil change time at an appropriate timing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

A device for determining an oil changing period, with which it is possible to accurately determine an oil changing period, has a calculation unit that calculates a degree of degradation of oil on the basis of engine torque, and a determination unit that determines an oil changing period on the basis of the degree of degradation calculated by the calculation unit. For example, the calculation unit calculates the degree of degradation also on the basis of at least one degradation factor among vehicle speed, travel distance, and oil temperature. Additionally, for example, the calculation unit sets weightings to the degradation factors.

Description

オイル交換時期判定装置Oil change time judgment device
　本開示は、オイル交換時期判定装置に関する。 This disclosure relates to an oil change time determination device.
　従来、エンジンを搭載した車両などでは、ファイナルドライブ、トランスミッション、エンジンなどで作動を円滑にするための潤滑用のオイルを供給することが行われる。オイルが劣化した場合に、エンジンの性能および燃費などに悪影響を及ぼす。そのため、オイルの交換時期を報知することが行われる。 Conventionally, in vehicles equipped with an engine, lubricating oil for smooth operation is supplied by a final drive, a transmission, an engine, or the like. When oil deteriorates, it adversely affects engine performance and fuel consumption. Therefore, the oil replacement time is notified.
　オイルの劣化は、車両の使用条件等が優しい場合に（例えば高速道路における定速走行）比較的に進行しない。また、オイルの劣化は、車両の使用条件等が厳しい場合に（例えば一般道路における加速、減速を繰り返す走行）比較的に進行する。つまり、オイルの劣化は、車両の使われ方で進行に差異がある。 Oil deterioration does not progress relatively when the conditions of use of the vehicle are gentle (for example, constant speed driving on a highway). In addition, the deterioration of oil proceeds relatively when vehicle usage conditions are severe (for example, traveling repeatedly repeating acceleration and deceleration on a general road). In other words, the deterioration of oil varies in the way it is used.
　ところが、オイル交換は、車両の使用条件等に関係なく、定期オイル交換時期（例えば、一律走行距離５０,０００ｋｍ又は１年）に行われる。これにより、例えば、オイル劣化に対して車両の使用条件等が優しい場合に、定期オイル交換時期において、オイルの劣化が進行していなくても、オイル交換が行われる。また、例えば、オイル劣化に対して車両の使用条件等が厳しい場合に、オイル劣化が進行していても、定期オイル交換時期まで、オイル交換されないまま使用される。これにより、ギア、ベアリング、オイルシールなどの部品が故障する要因となる。 However, the oil change is performed at a regular oil change time (for example, a uniform travel distance of 50,000 km or one year) regardless of the conditions of use of the vehicle. Thus, for example, when the vehicle use conditions are gentle against oil deterioration, the oil is changed even if the oil has not deteriorated at the regular oil replacement time. Further, for example, when vehicle use conditions are severe with respect to oil deterioration, even if oil deterioration has progressed, it is used without oil replacement until a regular oil replacement time. As a result, parts such as gears, bearings, and oil seals are damaged.
　オイルの交換時期を報知する装置として、例えば、特許文献１に、エンジンの作動時間の積算値に応じてオイル交換時期の警報を行う装置が示されている。 As a device for notifying oil replacement time, for example, Patent Document 1 discloses a device that issues an oil replacement time alarm according to an integrated value of engine operating time.
日本国特開２００４－１５０３９６号公報Japanese Unexamined Patent Publication No. 2004-150396
　しかしながら、オイルは、車両の使用条件等が優しい場合に、エンジンの作動時間が長い割に劣化していない。一方、車両の使用条件等が厳しい場合に、作動時間が短い割に劣化している。つまり、作動時間とオイルの劣化状態との間に単純な比例関係があるわけではなく、単に、作動時間に基づいてオイル交換時期を判定すると、当該オイル交換時期を正確に判定できない場合があるという問題点があった。 However, the oil has not deteriorated for a long time when the operating time of the engine is long when the conditions of use of the vehicle are gentle. On the other hand, when the conditions of use of the vehicle are severe, the operating time is degraded for a short time. In other words, there is no simple proportional relationship between the operating time and the deterioration state of the oil, and simply determining the oil replacement time based on the operating time may not be able to accurately determine the oil replacement time. There was a problem.
　本開示は、オイル交換時期の判定を正確に行うことができるオイル交換時期判定装置を提供することである。 This disclosure is to provide an oil change time determination device capable of accurately determining the oil change time.
　本開示のオイル交換時期判定装置は、
　エンジンのトルクに基づいてオイルの劣化度を算出する算出部と、
　前記算出部により算出された前記劣化度に基づいて、オイルの交換時期を判定する判定部と、
　を有する。 The oil change time determination device of the present disclosure is:
A calculation unit for calculating the degree of deterioration of the oil based on the torque of the engine;
A determination unit that determines an oil replacement time based on the degree of deterioration calculated by the calculation unit;
Have
　本開示のオイル交換時期判定方法は、
　エンジンのトルクに基づいてオイルの劣化度を算出し、
　算出された前記劣化度に基づいて、オイルの交換時期を判定する。 The oil change time determination method of the present disclosure is:
Calculate the degree of oil deterioration based on the engine torque,
Based on the calculated degree of deterioration, the oil replacement time is determined.
　本開示によれば、オイル交換時期の判定を正確に行うことができる。 According to the present disclosure, it is possible to accurately determine the oil change time.
図１は、本開示の実施の形態に係るオイル交換時期判定装置の構成の一例を示すブロック図である。FIG. 1 is a block diagram illustrating an example of a configuration of an oil replacement time determination device according to an embodiment of the present disclosure. 図２は、劣化要素に関する重み係数を示す図である。FIG. 2 is a diagram illustrating weighting factors related to the degradation element. 図３は、オイル交換時期判定装置の動作の一例を示すフローチャートである。FIG. 3 is a flowchart showing an example of the operation of the oil change time determination device.
　以下、本開示の一実施の形態について、図面を参照して詳細に説明する。 Hereinafter, an embodiment of the present disclosure will be described in detail with reference to the drawings.
　図１は、本開示にかかるオイル交換時期判定装置の一例を示すブロック図である。
　図１に示すように、マスターコントローラー１と、エンジン制御装置２と、オイル交換時期表示部３とは、共通バス４で相互に接続され、車内シリアル通信ネットワークを構成している。リセット装置５は、直接マスターコントローラー１に接続されている。 FIG. 1 is a block diagram illustrating an example of an oil change time determination device according to the present disclosure.
As shown in FIG. 1, the master controller 1, the engine control device 2, and the oil change time display unit 3 are connected to each other via a common bus 4 to form an in-vehicle serial communication network. The reset device 5 is directly connected to the master controller 1.
　マスターコントローラー１は、図３に示す処理プログラムを実行するものである。
　エンジン制御装置２は、車速、アクセル開度、エンジン回転数、走行距離、オイル温度などの運転情報を各センサーから信号入力し、必要に応じて燃料噴射量を出力する。 The master controller 1 executes the processing program shown in FIG.
The engine control device 2 inputs operation information such as vehicle speed, accelerator opening, engine speed, travel distance, and oil temperature from each sensor and outputs a fuel injection amount as necessary.
　エンジン制御装置２は、例えば、車両における車軸の回転数に比例してパルス信号を発生させ、パルス信号の数量に比例した車両移動が生じるものとして、時間当たりのパルス信号の数量から車速を取得する。また、エンジン制御装置２は、例えば、アクセル開度センサーからのアクセルペダル（図示略）の踏み込み量を基にアクセル開度を取得する。また、エンジン制御装置２は、例えば、ロータリーエンコーダーからの信号を基にエンジン回転数を取得する。また、エンジン制御装置２は例えば累積積算距離計から走行距離を取得する。また、エンジン制御装置２は、例えば油温計からオイル温度を取得する。 For example, the engine control device 2 generates a pulse signal in proportion to the number of rotations of the axle of the vehicle, and obtains the vehicle speed from the number of pulse signals per hour, assuming that vehicle movement is proportional to the number of pulse signals. . Further, the engine control device 2 acquires the accelerator opening based on, for example, the depression amount of an accelerator pedal (not shown) from the accelerator opening sensor. Moreover, the engine control apparatus 2 acquires an engine speed based on the signal from a rotary encoder, for example. Further, the engine control device 2 acquires a travel distance from, for example, a cumulative total distance meter. Moreover, the engine control apparatus 2 acquires oil temperature from an oil thermometer, for example.
　エンジン制御装置２は、メモリ２２を含み、所定時間毎の車速などの上記運転情報をメモリ２２に記憶する。 The engine control device 2 includes a memory 22 and stores the above driving information such as a vehicle speed every predetermined time in the memory 22.
　マスターコントローラー１（本開示の「オイル交換時期判定装置」に対応）は、算出部１２、判定部１４、エンジントルクマップ（図示略）およびルックアップテーブル（図示略）を有している。 The master controller 1 (corresponding to the “oil change timing determination device” of the present disclosure) includes a calculation unit 12, a determination unit 14, an engine torque map (not shown), and a lookup table (not shown).
　エンジントルクマップは、アクセル開度およびエンジン回転数とエンジン出力トルク（以下「トルク」と略称する）との関係を示す表である。 The engine torque map is a table showing the relationship between the accelerator opening and the engine speed and the engine output torque (hereinafter abbreviated as “torque”).
　ルックアップテーブルは、オイルを劣化させる要因となる劣化要素に関する所定時間毎の劣化量を予め記憶したテーブルである。例えば、劣化要素には、トルク、車速、走行距離およびオイル温度などが含まれる。 The look-up table is a table that stores in advance the amount of deterioration per predetermined time related to a deterioration element that causes oil deterioration. For example, the deterioration factors include torque, vehicle speed, travel distance, oil temperature, and the like.
　マスターコントローラー１は、後述する判定部１４の判定結果に基づいてオイル交換時期情報（オイル要交換情報、残存走行距離情報など）をオイル交換時期表示部３に表示させる。マスターコントローラー１は、リセット装置５から入力された初期化情報（オイル交換済み情報など）をオイル交換時期表示部３に表示させる。 The master controller 1 causes the oil change time display unit 3 to display oil change time information (oil required change information, remaining mileage information, etc.) based on the determination result of the determination unit 14 described later. The master controller 1 causes the oil change time display unit 3 to display initialization information (such as information about oil change) input from the reset device 5.
　算出部１２は、メモリ２２から読み出した所定時間毎のアクセル開度およびエンジン回転数に基づいて、エンジントルクマップを参照して所定時間毎のトルクを算出する。算出部１２は、算出した所定時間毎のトルクに基づいて、ルックアップテーブルを参照して、所定時間毎の劣化量を算出し、その劣化量を、既に算出した劣化量に加算し、トルクに関する劣化量の積算値を求める。 The calculation unit 12 calculates torque for each predetermined time with reference to the engine torque map based on the accelerator opening and the engine speed for each predetermined time read from the memory 22. The calculation unit 12 calculates a deterioration amount for each predetermined time with reference to the lookup table based on the calculated torque for each predetermined time, adds the deterioration amount to the already calculated deterioration amount, and relates to the torque. Find the integrated value of the amount of deterioration.
　車速、走行距離およびオイル温度のそれぞれに関する劣化量の積算値は、トルクに関する劣化量の積算値と同様に求める。例えば、車速に関する劣化量の積算値では、算出部１２は、メモリ２２から読み出した所定時間毎の車速に基づいて、ルックアップテーブルを参照して、所定時間毎の劣化量を算出し、その劣化量を、既に算出した劣化量に加算し、車速に関する劣化量の積算値を求める。 The integrated value of the deterioration amount related to the vehicle speed, travel distance, and oil temperature is obtained in the same manner as the integrated value of the deterioration amount related to the torque. For example, in the integrated value of the deterioration amount related to the vehicle speed, the calculation unit 12 refers to the look-up table based on the vehicle speed for each predetermined time read from the memory 22 and calculates the deterioration amount for each predetermined time. The amount is added to the already calculated deterioration amount to obtain an integrated value of the deterioration amount related to the vehicle speed.
　オイルの劣化度は、例えば、オイルに混入するスラッジや摩擦粉の混入量、および、オイル温度により評価される。摩擦粉の混入量に対する影響は、例えば、トルクが比較的大きく、走行距離が比較的小さい。また、オイル温度に対する影響は、例えば、トルクが比較的大きく、車速、走行距離、連続走行時間および大気温度が小さい。 The degree of deterioration of oil is evaluated by, for example, the amount of sludge and friction powder mixed in the oil and the oil temperature. The influence on the mixing amount of the friction powder is, for example, that the torque is relatively large and the travel distance is relatively small. The influence on the oil temperature is, for example, that the torque is relatively large, and the vehicle speed, travel distance, continuous travel time, and atmospheric temperature are small.
　図２は、劣化要素に関する重み係数の一例を示す図である。図２に、オイル劣化に対する影響が比較的大きいトルクおよびオイル温度に関する重み係数「１」を示し、比較的小さい車速および走行距離に関する重み係数「０．２」を示す。 FIG. 2 is a diagram illustrating an example of a weighting factor related to a degradation element. FIG. 2 shows a weight coefficient “1” relating to torque and oil temperature having a relatively large influence on oil deterioration, and a weight coefficient “0.2” relating to a relatively small vehicle speed and travel distance.
　算出部１２は、トルクおよび劣化要素に関する重み係数を用いて劣化度を算出する。具体的には、算出部１２は、トルク、車速、走行距離およびオイル温度のそれぞれの劣化要素に関する劣化量の積算値を、図２に示す重み係数で重み付けする。算出部１２は、重み付けした各劣化要素に関する劣化量の積算値に基づいて（例えば、各劣化量の積算値を乗算した値に基づいて）、オイルの劣化度を算出する。 The calculation unit 12 calculates the degree of deterioration using a weighting factor related to torque and deterioration factors. Specifically, the calculation unit 12 weights the integrated values of the deterioration amounts related to the deterioration factors of torque, vehicle speed, travel distance, and oil temperature with weighting factors shown in FIG. The calculation unit 12 calculates the degree of deterioration of the oil based on the integrated value of the deterioration amount regarding each weighted deterioration element (for example, based on a value obtained by multiplying the integrated value of each deterioration amount).
　マスターコントローラー１は、算出した劣化度を、内部メモリに記憶する。 The master controller 1 stores the calculated deterioration degree in the internal memory.
　判定部１４は、劣化度と所定の閾値とを比較し、劣化度が所定の閾値以上であるか否かを判定する。判定部１４は、劣化度が所定の閾値以上である場合に、オイル交換を必要とするオイル交換時期情報（オイル要交換情報）を出力する。また、判定部１４は、劣化度が所定の閾値未満である場合に、オイル交換を必要するまでの走行距離であるオイル交換時期情報（残存走行距離情報）を出力する。 The determination unit 14 compares the deterioration degree with a predetermined threshold value, and determines whether or not the deterioration degree is equal to or greater than the predetermined threshold value. The determination unit 14 outputs oil change timing information (oil required change information) that requires oil change when the degree of deterioration is equal to or greater than a predetermined threshold. Further, when the degree of deterioration is less than a predetermined threshold, the determination unit 14 outputs oil change timing information (remaining travel distance information) that is a travel distance until the oil change is necessary.
　＜オイル交換時期判定装置の動作＞
　次に、オイル交換時期判定装置の動作について説明する。図３は、オイル交換時期判定装置の動作を示すフローチャートである。なお、本フローは、エンジン始動により開始される。また、エンジン制御装置２は、所定時間毎のアクセル開度およびエンジン回転数を入力し、メモリ２２に記憶する。また、エンジン制御装置２は、所定時間毎の車速、走行距離およびオイル温度のそれぞれの劣化要素を入力し、メモリ２２に記憶する。 <Operation of oil change time determination device>
Next, the operation of the oil change time determination device will be described. FIG. 3 is a flowchart showing the operation of the oil change time determination device. This flow is started by starting the engine. Further, the engine control device 2 inputs the accelerator opening and the engine speed every predetermined time, and stores them in the memory 22. Further, the engine control device 2 inputs deterioration factors of the vehicle speed, the travel distance, and the oil temperature for each predetermined time, and stores them in the memory 22.
　ステップＳ１１０において、算出部１２は、メモリ２２から読み出された所定時間毎のアクセル開度およびエンジン回転数に基づいて、エンジントルクマップを参照して、エンジンのトルクを算出する。 In step S110, the calculation unit 12 calculates the engine torque with reference to the engine torque map based on the accelerator opening and the engine speed for each predetermined time read from the memory 22.
　ステップＳ１２０において、算出部１２は、算出した所定時間毎のトルクおよび各劣化要素に基づいて、ルックアップテーブルを参照して、所定時間毎の劣化量を算出し、既に算出した劣化量に積算し、劣化量の積算値を求める。 In step S120, the calculation unit 12 refers to the look-up table based on the calculated torque for each predetermined time and each deterioration factor, calculates the deterioration amount for each predetermined time, and integrates the already calculated deterioration amount. Then, the integrated value of the deterioration amount is obtained.
　ステップＳ１３０において、算出部１２は、図２に示す重み係数を用いて、トルクおよび各劣化要素に関する劣化量の積算値を重み付けする。算出部１２は、重み付けした各劣化量の積算値に基づいて、オイルの劣化度を算出する。 In step S130, the calculation unit 12 uses the weighting coefficient shown in FIG. The calculation unit 12 calculates the degree of deterioration of the oil based on the weighted integrated value of the deterioration amounts.
　ステップＳ１４０において、判定部１４は、劣化度が所定の閾値以上であるか否かを判定する。 In step S140, the determination unit 14 determines whether or not the degree of deterioration is equal to or greater than a predetermined threshold value.
　マスターコントローラー１は、劣化度が所定の閾値以上である場合に（ステップＳ１４０：ＹＥＳ）、オイル要交換情報をオイル交換時期表示部３に表示させる（ステップＳ１５０）。 When the degree of deterioration is equal to or greater than a predetermined threshold (step S140: YES), the master controller 1 displays oil change information on the oil change time display unit 3 (step S150).
　マスターコントローラー１は、劣化度が所定の閾値未満である場合に（ステップＳ１４０：ＮＯ）、残存走行距離情報をオイル交換時期表示部３に表示させる（ステップＳ１６０）。 When the degree of deterioration is less than the predetermined threshold (step S140: NO), the master controller 1 displays the remaining travel distance information on the oil change time display unit 3 (step S160).
　＜本実施の形態の効果＞
　以上のように、本実施の形態に係るオイル交換時期判定装置により、算出部１２は、エンジンのトルク、車速、走行距離およびオイル温度に基づいてオイルの劣化度を算出し、判定部１４は、劣化度に基づいてオイル交換時期を判定する。これにより、オイル交換時期の判定を正確に行うことができる。 <Effects of the present embodiment>
As described above, with the oil change timing determination device according to the present embodiment, the calculation unit 12 calculates the degree of deterioration of oil based on the engine torque, the vehicle speed, the travel distance, and the oil temperature. The oil change time is determined based on the degree of deterioration. As a result, it is possible to accurately determine the oil replacement time.
　オイル交換時期の判定を正確に行うことができため、オイル劣化に応じて最良なタイミングでオイル交換を行うことができる。これにより、使用条件等が優しい車両についてはオイル交換期間の延長により、メンテナンスコストを低減することができ、使用条件等が厳しい車両については早期にオイル交換をすることにより、ギア、ベアリング、オイルシールなどの部品の故障を未然に防止することができる。 Since the oil change timing can be accurately determined, the oil change can be performed at the best timing according to the oil deterioration. This makes it possible to reduce the maintenance cost by extending the oil change period for vehicles that are easy to use, etc., and for gears, bearings, and oil seals by replacing oil at an early stage for vehicles that have severe use conditions. It is possible to prevent the breakdown of the parts.
　また、算出部１２は、トルク、車速、走行距離およびオイル温度に関する重み係数を用いて、オイルの劣化度を算出する。これにより、車両の使用条件が実際の使用条件に沿ったものとなるため、オイル交換時期の判定をより正確に行うことができる。 Also, the calculation unit 12 calculates the degree of deterioration of the oil using weighting factors related to torque, vehicle speed, travel distance, and oil temperature. Thereby, since the use condition of a vehicle becomes in line with an actual use condition, determination of an oil replacement time can be performed more correctly.
　＜本実施の形態の変形例＞
　なお、上記実施の形態では、算出部１２は、トルク、車速、走行距離およびオイル温度のそれぞれの劣化要素に基づいてオイルの劣化度を算出したが、本開示はこれに限らず、算出部１２は、トルクに基づいてオイルの劣化度を算出してもよく、また、算出部１２は、トルクと、車速、走行距離およびオイル温度の少なくとも一つの劣化要素とに基づいて劣化度を算出してもよい。 <Modification of the present embodiment>
In the above embodiment, the calculation unit 12 calculates the degree of oil deterioration based on the respective deterioration factors of torque, vehicle speed, travel distance, and oil temperature. However, the present disclosure is not limited thereto, and the calculation unit 12 is not limited thereto. May calculate the degree of oil deterioration based on the torque, and the calculation unit 12 may calculate the degree of deterioration based on the torque and at least one deterioration factor of the vehicle speed, the travel distance, and the oil temperature. Also good.
　また、上記実施の形態では、エンジン制御装置２は、センサーからオイル温度を取得したが、本開示は、これに限らず、例えば、エンジン制御装置２は、トルク、車速、連続走行時間および大気温度を所定の論理式に代入することにより、オイル温度を算出するようにしてもよい。なお、連続走行時間を計時するものとして、タイマーが用いられてもよい。また、大気温度のセンサーとして、例えば、空調装置の外気温センサーが兼用されてもよい。 Moreover, in the said embodiment, although the engine control apparatus 2 acquired oil temperature from the sensor, this indication is not restricted to this, For example, the engine control apparatus 2 is torque, vehicle speed, continuous running time, and atmospheric temperature. The oil temperature may be calculated by substituting into a predetermined logical expression. A timer may be used as a timer for measuring the continuous running time. Further, as an air temperature sensor, for example, an outside air temperature sensor of an air conditioner may also be used.
　その他、上記実施の形態は、何れも本開示の実施するにあたっての具体化の一例を示したものに過ぎず、これらによって本開示の技術的範囲が限定的に解釈されてはならないものである。すなわち、本開示はその要旨、またはその主要な特徴から逸脱することなく、様々な形で実施することができる。 In addition, each of the above-described embodiments is merely an example of implementation in carrying out the present disclosure, and the technical scope of the present disclosure should not be interpreted in a limited manner. That is, the present disclosure can be implemented in various forms without departing from the gist or the main features thereof.
　本出願は、２０１６年１２月１２日付で出願された日本国特許出願（特願２０１６－２４０３９３）に基づくものであり、その内容はここに参照として取り込まれる。 This application is based on a Japanese patent application (Japanese Patent Application No. 2016-240393) filed on December 12, 2016, the contents of which are incorporated herein by reference.
　本開示のオイル交換時期判定装置は、オイル交換時期の判定を適切なタイミングで行うことが要求されるエンジン搭載の車両として有用である。 The oil change time determination device of the present disclosure is useful as a vehicle equipped with an engine that is required to determine the oil change time at an appropriate timing.
　１　マスターコントローラー
　２　エンジン制御装置
　３　オイル交換時期表示部
　５　リセット装置
　１２　算出部
　１４　判定部
　２２　メモリ DESCRIPTION OF SYMBOLS 1 Master controller 2 Engine control apparatus 3 Oil change time display part 5 Reset apparatus 12 Calculation part 14 Judgment part 22 Memory

Claims (6)

  1. 　エンジンのトルクに基づいてオイルの劣化度を算出する算出部と、
    　前記算出部により算出された前記劣化度に基づいて、オイルの交換時期を判定する判定部と、
    　を有するオイル交換時期判定装置。     A calculation unit for calculating the degree of deterioration of the oil based on the torque of the engine;
    A determination unit that determines an oil replacement time based on the degree of deterioration calculated by the calculation unit;
    An oil change time determination device having
  2. 　前記算出部は、前記トルクと、車速、走行距離およびオイル温度の少なくとも一つの劣化要素とに基づいて前記劣化度を算出する、請求項１に記載のオイル交換時期判定装置。 The oil change time determination device according to claim 1, wherein the calculation unit calculates the degree of deterioration based on the torque and at least one deterioration factor of vehicle speed, travel distance, and oil temperature.
  3. 　前記算出部は、前記トルクおよび前記劣化要素に関する重み係数を用いて、前記劣化度を算出する、請求項２に記載のオイル交換時期判定装置。 3. The oil change timing determination device according to claim 2, wherein the calculation unit calculates the degree of deterioration using a weighting factor related to the torque and the deterioration factor.
  4. 　前記オイル温度は、前記トルク、前記車速、連続走行時間および大気温度に基づいて定められる、請求項２に記載のオイル交換時期判定装置。 The oil change timing determination device according to claim 2, wherein the oil temperature is determined based on the torque, the vehicle speed, a continuous running time, and an atmospheric temperature.
  5. 　前記劣化度が所定の閾値以上である場合に、オイル交換を表示するように構成される、請求項１に記載のオイル交換時期判定装置。 The oil change timing determination device according to claim 1, configured to display an oil change when the degree of deterioration is equal to or greater than a predetermined threshold.
  6. 　エンジンのトルクに基づいてオイルの劣化度を算出し、
    　算出された前記劣化度に基づいて、オイルの交換時期を判定する、オイル交換時期判定方法。     Calculate the degree of oil deterioration based on the engine torque,
    An oil replacement time determination method for determining an oil replacement time based on the calculated degree of deterioration.
PCT/JP2017/044340 2016-12-12 2017-12-11 Device for determining oil changing period WO2018110492A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201780073694.3A CN110023600B (en) 2016-12-12 2017-12-11 Oil replacement timing determination device
PH12019501160A PH12019501160A1 (en) 2016-12-12 2019-05-24 Device for determining oil chnaging period

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-240393 2016-12-12
JP2016240393A JP6753295B2 (en) 2016-12-12 2016-12-12 Oil change time judgment device

Publications (1)

Publication Number Publication Date
WO2018110492A1 true WO2018110492A1 (en) 2018-06-21

Family

ID=62558789

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/044340 WO2018110492A1 (en) 2016-12-12 2017-12-11 Device for determining oil changing period

Country Status (4)

Country Link
JP (1) JP6753295B2 (en)
CN (1) CN110023600B (en)
PH (1) PH12019501160A1 (en)
WO (1) WO2018110492A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2571095A (en) * 2018-02-15 2019-08-21 Ford Global Tech Llc A method and system for determining an oil change interval
CN114996645A (en) * 2022-06-29 2022-09-02 东风商用车有限公司 Intelligent engine oil maintenance method based on big data
DE102019132357B4 (en) 2018-12-11 2023-01-19 Toyota Jidosha Kabushiki Kaisha CROSS-REFERRAL DEVICE, CROSS-REFERRAL METHOD AND NON-TRANSITORY STORAGE MEDIUM WITH STORED CROSS-REFERRAL PROGRAM

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021032188A (en) * 2019-08-28 2021-03-01 三菱自動車工業株式会社 Deterioration determination device and deterioration determination method for engine oil
CN112096482B (en) * 2019-12-02 2022-05-03 长城汽车股份有限公司 Engine oil maintenance control method and device
JP7272292B2 (en) * 2020-01-27 2023-05-12 いすゞ自動車株式会社 Oil change guide device and oil change guide method
JP2021148091A (en) * 2020-03-20 2021-09-27 本田技研工業株式会社 Oil state determination device for vehicle
CN111810619B (en) * 2020-08-05 2023-04-11 中国重汽集团济南动力有限公司 Gearbox oil change reminding device and control method
JP7298586B2 (en) 2020-11-12 2023-06-27 トヨタ自動車株式会社 vehicle controller
JP7468441B2 (en) 2021-04-09 2024-04-16 トヨタ自動車株式会社 Cooling water deterioration calculation system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57151447A (en) * 1981-02-06 1982-09-18 Bayerische Motoren Werke Ag Indicator for keeping interval of automobile
JPS628313A (en) * 1985-07-04 1987-01-16 Canon Electronics Inc Magnetic head
JPS6293415A (en) * 1985-10-21 1987-04-28 Nissan Motor Co Ltd Lubricating oil replacement warning device for vehicle
JP2002266617A (en) * 2001-03-09 2002-09-18 Isuzu Motors Ltd Oil degradation determining device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS628313U (en) * 1985-07-02 1987-01-19
JP3843381B2 (en) * 1997-09-05 2006-11-08 株式会社小松製作所 Engine lubrication oil replacement time prediction apparatus and prediction method
JP4101615B2 (en) * 2002-11-01 2008-06-18 本田技研工業株式会社 Engine oil deterioration detector
JP4409927B2 (en) * 2003-12-09 2010-02-03 本田技研工業株式会社 Hydraulic oil change display for automatic transmission
JP2011208543A (en) * 2010-03-29 2011-10-20 Daikyonishikawa Corp Oil filtering device and oil pan
JP2011214932A (en) * 2010-03-31 2011-10-27 Honda Motor Co Ltd Hydraulic oil evaluation system of vehicle
JP5505151B2 (en) * 2010-07-13 2014-05-28 トヨタ自動車株式会社 Oil dilution fuel estimation device
CN201786416U (en) * 2010-09-21 2011-04-06 北汽福田汽车股份有限公司 Engine oil change prompt device
DE102012004794B4 (en) * 2012-03-07 2022-03-03 Volkswagen Aktiengesellschaft Method for monitoring the oil quality of an internal combustion engine
JP6101217B2 (en) * 2014-01-14 2017-03-22 本田技研工業株式会社 Vehicle hydraulic oil deterioration estimation device
JP2016169624A (en) * 2015-03-11 2016-09-23 トヨタ自動車株式会社 Oil storage device of engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57151447A (en) * 1981-02-06 1982-09-18 Bayerische Motoren Werke Ag Indicator for keeping interval of automobile
JPS628313A (en) * 1985-07-04 1987-01-16 Canon Electronics Inc Magnetic head
JPS6293415A (en) * 1985-10-21 1987-04-28 Nissan Motor Co Ltd Lubricating oil replacement warning device for vehicle
JP2002266617A (en) * 2001-03-09 2002-09-18 Isuzu Motors Ltd Oil degradation determining device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2571095A (en) * 2018-02-15 2019-08-21 Ford Global Tech Llc A method and system for determining an oil change interval
GB2571095B (en) * 2018-02-15 2020-08-26 Ford Global Tech Llc A method and system for determining an oil change interval
DE102019132357B4 (en) 2018-12-11 2023-01-19 Toyota Jidosha Kabushiki Kaisha CROSS-REFERRAL DEVICE, CROSS-REFERRAL METHOD AND NON-TRANSITORY STORAGE MEDIUM WITH STORED CROSS-REFERRAL PROGRAM
CN114996645A (en) * 2022-06-29 2022-09-02 东风商用车有限公司 Intelligent engine oil maintenance method based on big data

Also Published As

Publication number Publication date
JP2018096258A (en) 2018-06-21
CN110023600A (en) 2019-07-16
PH12019501160A1 (en) 2020-01-20
CN110023600B (en) 2021-08-10
JP6753295B2 (en) 2020-09-09

Similar Documents

Publication Publication Date Title
WO2018110492A1 (en) Device for determining oil changing period
CN108290570B (en) Driveline disconnect and coast management
KR101280711B1 (en) Driving condition evaluation device and evaluation method
EP2652471B1 (en) Torque calibration method
US20080306636A1 (en) Enhanced display for presenting tachometer information
CN104924986A (en) Gear shifting reminding method of hybrid electric vehicle
US20160033367A1 (en) System and method for determining tire wear
CN102649433A (en) Method for road grade estimation for enhancing the fuel economy index calculation
WO2008087541A1 (en) Fuel economy improvement assist device and method of fuel economy improvement assist
US11276305B2 (en) System for predicting road surface friction coefficient
CN108331915B (en) Control method and system for automatic gearbox of passenger car and freight car
CN101379282A (en) Method for in-system auto zeroing of a torque sensor in an automatic transmission drive train
CA2895003A1 (en) Device and method for saving energy during accelerations of motor vehicles
CN109489991A (en) A kind of calculation method and system of the accelerator open degree of electric car performance test
JP2018179543A (en) Estimation device and estimation method
US20180238433A1 (en) Method and system for monitoring a service life of lubricant applied to vehicle components
US10245949B2 (en) Method for operating a motor vehicle including an all-wheel drive that can be enabled and disabled by determining an angular acceleration of components, which are uncoupled when the all-wheel drive is disabled
CN101154095B (en) Virtual accelerometer
JP5567028B2 (en) Vehicle speed signal tamper detection device, vehicle speed suppression device, vehicle speed signal tamper detection method, and vehicle speed suppression method
JP5989066B2 (en) Method and control device for controlling an internal combustion engine
JP4415995B2 (en) Fuel-saving driving recommendation device
JP2010203405A (en) Operation evaluation device for vehicle
JP2009119958A (en) Vehicle state estimation unit
KR101673747B1 (en) Apparatus for displaying eco guide in vehicle cluster and method thereof
CN112096846B (en) Method and device for determining gear shifting point of vehicle, vehicle and storage medium

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17880975

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17880975

Country of ref document: EP

Kind code of ref document: A1