JP6052285B2 - 変速比制御装置及び変速比制御方法 - Google Patents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/50—Inputs being a function of the status of the machine, e.g. position of doors or safety belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0638—Engine speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2530/00—Input parameters relating to vehicle conditions or values, not covered by groups B60W2510/00 or B60W2520/00
- B60W2530/203—Presence of trailer
- B60W2530/207—Towing force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2552/00—Input parameters relating to infrastructure
- B60W2552/15—Road slope, i.e. the inclination of a road segment in the longitudinal direction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0644—Engine speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/10—Change speed gearings
- B60W2710/1038—Output speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2720/00—Output or target parameters relating to overall vehicle dynamics
- B60W2720/10—Longitudinal speed
- B60W2720/106—Longitudinal acceleration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/50—Inputs being a function of the status of the machine, e.g. position of doors or safety belts
- F16H59/52—Inputs being a function of the status of the machine, e.g. position of doors or safety belts dependent on the weight of the machine, e.g. change in weight resulting from passengers boarding a bus
- F16H2059/525—Inputs being a function of the status of the machine, e.g. position of doors or safety belts dependent on the weight of the machine, e.g. change in weight resulting from passengers boarding a bus the machine undergoing additional towing load, e.g. by towing a trailer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/60—Inputs being a function of ambient conditions
- F16H59/66—Road conditions, e.g. slope, slippery
- F16H2059/663—Road slope
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0213—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
- F16H2061/0234—Adapting the ratios to special vehicle conditions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/14—Inputs being a function of torque or torque demand
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0213—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
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Description
FIG.3Aを参照すると、車両の走行負荷は時刻t1に平坦路より登坂路に進入してからしばらくの間が最も大きい。登坂路に進入したあと平坦路と同等の車速が得られるようになると、走行負荷は減少する。
非牽引状態で平坦路を走行する場合には、基本最低エンジン回転速度Nebest0がエンジン回転速度下限値Nemin10を超えることはない。しかしながら、車両が牽引状態で登坂路を走行する場合には、時刻t2から時刻t6の区間で基本最低エンジン回転速度Nebest0がエンジン回転速度下限値Nemin10を超えてしまう。
ただし、M:車両重量;
R:ころがり抵抗(空気抵抗を含む)(N);
X:登坂路走行や牽引状態で増える抵抗(N)。
R+X=Rdrv (3)
とおき、Rdrvを「走行負荷」と定義する。式(3)から分かるように、走行負荷は牽引状態によって増える抵抗だけでなく、登坂路走行によって増える抵抗をも含む。比較例では転がり抵抗Rまでは考慮しているが、登坂路走行や牽引状態で増える抵抗Xについては考慮していない。走行負荷Rdrvは次式(4)で得られる。
Claims (6)
- 内燃エンジンと内燃エンジンに接続された自動変速機を備える車両、のための変速比制御装置において、
車両の運転状態を検出する運転状態検出センサ、運転状態検出センサは車両の車速を検出する車速センサを含む、と;
次のようにプログラムされたプログラマブルコントローラ:
運転状態に基づき車両走行負荷を計算し;
車両走行負荷に基づき内燃エンジンの基本最低回転速度を計算し;
車速に応じて増大する第1の値と、車速に応じて増大する第1の値より大きな第2の値とを計算し;
車両が牽引状態かどうかを判定し;
車両が非牽引状態の場合には、最低エンジン回転速度を基本最低回転速度と第1の値のうちの小さな方に設定し;
車両が牽引状態の場合には、最低エンジン回転速度を基本最低回転速度と第2の値のうちの小さな方に設定し;
内燃エンジンの回転速度が最低エンジン回転速度以上となるように自動変速機の目標変速比を設定し;
自動変速機の変速比を目標変速比へと制御する、とを備えるとともに、
基本最低回転速度は自動変速機が最ロー変速比で車両を駆動する場合に必要な車両駆動力が得られる最低のエンジン回転速度である、変速比制御装置。 - 運転状態検出センサは、内燃エンジンの負荷を検出するエンジン負荷センサと、内燃エンジンの回転速度を検出する回転速度センサと、自動変速機の実変速比を検出するセンサと、をさらに含み
コントローラは、エンジン負荷とエンジン回転速度からエンジントルクを計算し、エンジントルクと実変速比から車両の駆動力を計算し、車速から車両の加速度を検出し、車両の駆動力と車両の重量と車両の加速度から車両走行負荷を計算するようにさらにプログラムされる、請求項1の変速比制御装置。 - 車室内に設けられた、ドライバが操作する牽引スイッチをさらに備え、コントローラは牽引スイッチがオンの場合に、車両が牽引状態にあると判定するよう、さらにプログラムされる、請求項1または2の変速比制御装置。
- 車両は、車両と車両に牽引される牽引車両とを連結するカプラーを備え、
変速比制御装置は、カプラーが牽引車両を連結するとオンになり、カプラーが牽引車両を切り離すとオフになる締結スイッチを備え、
コントローラは締結スイッチがオンの場合に車両が牽引状態にあると判定するよう、さらにプログラムされる、請求項1または2の変速比制御装置。 - 内燃エンジンと内燃エンジンに接続された自動変速機を備える車両、のための変速比制御装置において、
車両の運転状態を検出する運転状態検出手段、運転状態検出手段は車両の車速を検出する車速センサを含む、と;
運転状態に基づき車両走行負荷を計算する手段と;
車両走行負荷に基づき内燃エンジンの基本最低回転速度を計算する手段と;
車速に応じて増大する第1の値と、車速に応じて増大する第1の値より大きな第2の値とを計算する手段と;
車両が牽引状態かどうかを判定する手段と;
車両が非牽引状態の場合には、最低エンジン回転速度を基本最低回転速度と第1の値のうちの小さな方に設定する手段と;
車両が牽引状態の場合には、最低エンジン回転速度を基本最低回転速度と第2の値のうちの小さな方に設定する手段と;
内燃エンジンの回転速度が最低エンジン回転速度以上となるように自動変速機の目標変速比を設定する手段と;
自動変速機の変速比を目標変速比へと制御する手段と、を備えるとともに、
基本最低回転速度は自動変速機が最ロー変速比で車両を駆動する場合に必要な車両駆動力が得られる最低のエンジン回転速度である、変速比制御装置。 - 内燃エンジンと内燃エンジンに接続された自動変速機を備える車両、のための変速比制御方法において、
車両の車速を含む車両の運転状態を検出し;
運転状態に基づき車両走行負荷を計算し;
車両走行負荷に基づき内燃エンジンの基本最低回転速度を計算し;
車速に応じて増大する第1の値と、車速に応じて増大する第1の値より大きな第2の値とを計算し;
車両が牽引状態かどうかを判定し;
車両が非牽引状態の場合には、最低エンジン回転速度を基本最低回転速度と第1の値のうちの小さな方に設定し;
車両が牽引状態の場合には、最低エンジン回転速度を基本最低回転速度と第2の値のうちの小さな方に設定し;
内燃エンジンの回転速度が最低エンジン回転速度以上となるように自動変速機の目標変速比を設定し;
自動変速機の変速比を目標変速比へと制御する、とともに、
基本最低回転速度は自動変速機が最ロー変速比で車両を駆動する場合に必要な車両駆動力が得られる最低のエンジン回転速度である、変速比制御方法。
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US5047937A (en) * | 1990-06-01 | 1991-09-10 | General Motors Corporation | Engine CVT control system |
US5382205A (en) * | 1991-03-29 | 1995-01-17 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Control device for an internal combustion engine and a continuous variable transmission |
JP3077007B2 (ja) * | 1992-09-02 | 2000-08-14 | 三菱自動車工業株式会社 | 無段変速機の変速制御装置 |
JP3284852B2 (ja) * | 1995-10-20 | 2002-05-20 | 日産自動車株式会社 | 無段変速機の変速制御装置 |
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2013
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- 2013-03-05 US US14/389,826 patent/US9254847B2/en active Active
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US9254847B2 (en) | 2016-02-09 |
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