JP6900908B2 - 車両用制御装置 - Google Patents
車両用制御装置 Download PDFInfo
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- JP6900908B2 JP6900908B2 JP2018001528A JP2018001528A JP6900908B2 JP 6900908 B2 JP6900908 B2 JP 6900908B2 JP 2018001528 A JP2018001528 A JP 2018001528A JP 2018001528 A JP2018001528 A JP 2018001528A JP 6900908 B2 JP6900908 B2 JP 6900908B2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
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- B60W20/15—Control strategies specially adapted for achieving a particular effect
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- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
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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
- B60W2710/0666—Engine torque
-
- 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
- B60W2710/08—Electric propulsion units
- B60W2710/083—Torque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/90—Vehicles comprising electric prime movers
- B60Y2200/92—Hybrid vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2300/00—Purposes or special features of road vehicle drive control systems
- B60Y2300/18—Propelling the vehicle
- B60Y2300/192—Power-up or power-down of the driveline, e.g. start up of a cold engine
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Human Computer Interaction (AREA)
- Hybrid Electric Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Description
なお、上記トルクが0付近とは、歯車のがたつき防止のために微小トルクを加える場合を含む趣旨である。
図1は、本発明が適用されたハイブリッド車両10の駆動系統を説明する骨子図で、制御系統の要部を併せて示した図である。ハイブリッド車両10は、例えばFF(前置エンジン前輪駆動)型等の横置き用の駆動系統を有するもので、エンジン12と左右一対の駆動輪14との間の動力伝達経路に、第1駆動部16、第2駆動部18、終減速装置20、および左右一対の車軸22等を備えて構成されている。エンジン12は、ガソリンエンジン、ディーゼルエンジン等の内燃機関で、そのクランク軸24には、トルク変動を吸収するダンパ装置26が接続されている。ダンパ装置26は、クランク軸24に連結される第1回転要素26a、および入力軸28を介して差動機構30に連結される第2回転要素26bとを備えているとともに、それ等の第1回転要素26aと第2回転要素26bとの間には複数種類のスプリング32および摩擦機構34が介在させられており、ねじり角Φの変化に対する入力トルクTinの変化の割合に対応する剛性値(ばね定数)が段階的に変化させられるとともに、ねじり角Φの増減時に所定のヒステリシスが付与されるようになっている。また、ダンパ装置26の外周端部にはトルクリミッタ35が設けられている。このダンパ装置26は、入力トルクTinに関連する回転特性を有する回転部材に相当し、第1回転要素26aはエンジン12側の連結部に相当する。
(a) 蓄電装置62の蓄電残量SOCが、エンジン12の始動性確保等のために予め定められた下限値以下である。
(b) エンジン始動要求がある(エアコン要求、運転者のアクセル操作など)。
(a) 蓄電装置62の蓄電残量SOCが、エンジン12の始動性確保等のために予め定められた下限値以下である。
(b) エンジン始動要求がある(エアコン要求、運転者のアクセル操作など)。
(c) 車両が共振する条件である(タイヤ入力サージ、波状路など)。
(d) 駆動力不足になる(坂路、縁石、高駆動力走行など)。
(e) 他の要件でモータトルクを発生する必要がある(モータ押し当てトルク、エンジン始動時など)。
(f) モータコギングトルクが大きい低回転領域(低車速領域)である。
(g) 車両停車状態の計測時に車両が移動している。
Claims (8)
- エンジンと、電動機と、該エンジンと該電動機との間に設けられ、入力トルクに関連する回転特性を有する回転部材と、を備える車両に適用され、
前記回転特性に基づいて所定の制御を行う車両用制御装置において、
前記車両は、前記回転部材の前記エンジン側の連結部の少なくとも一方向の回転を阻止する回転ロック機構を備えており、
前記回転ロック機構により前記連結部の回転を阻止した状態で、前記電動機により前記回転部材にトルクを加えて該回転部材のねじり角を計測することにより、前記回転特性を検出する特性検出部と、
前記特性検出部によって検出された前記回転特性に基づいてエンジン回転速度に関連する制御値を設定し、該制御値を用いて所定の制御を行なう特性対応制御部と、
を有することを特徴とする車両用制御装置。 - 前記特性検出部は、前記回転特性として少なくとも前記回転部材のねじり角の変化に対する入力トルクの変化の割合に相当する剛性値を検出するもので、
前記特性対応制御部は、前記剛性値に応じて定まる共振帯を避けるように前記制御値を高くし、或いは低くする
ことを特徴とする請求項1に記載の車両用制御装置。 - 前記特性検出部は、前記回転特性として少なくとも前記ねじり角の増加時と減少時との入力トルクの差であるヒステリシスを検出するもので、
前記特性対応制御部は、前記ヒステリシスが大きい場合に前記制御値を高くし、或いは共振帯を避けるように低くする
ことを特徴とする請求項1または2に記載の車両用制御装置。 - 前記車両は、前記回転部材と駆動輪との間の動力伝達経路に駆動力源として利用できる第2の電動機が連結されているハイブリッド車両で、
前記特性検出部は、前記回転特性として前記回転部材のねじり角の変化に対する入力トルクの変化の割合に相当する剛性値、および前記ねじり角の増加時と減少時との入力トルクの差であるヒステリシスを検出するもので、
前記特性対応制御部は、前記エンジンを駆動力源として用いて走行する際に前記第2の電動機のトルクが0付近で連れ廻り回転させられる場合、前記制御値であるエンジン回転速度について、前記剛性値が高い場合は低い場合に比較して該エンジン回転速度が高くなり、前記ヒステリシスが大きい場合は小さい場合に比較して該エンジン回転速度が高くなるように、該剛性値および該ヒステリシスに応じて該エンジン回転速度を設定するエンジン走行制御部を有する
ことを特徴とする請求項1に記載の車両用制御装置。 - 前記特性検出部は、前記回転特性として前記回転部材のねじり角の変化に対する入力トルクの変化の割合に相当する剛性値、および前記ねじり角の増加時と減少時との入力トルクの差であるヒステリシスを検出するもので、
前記特性対応制御部は、前記電動機により前記エンジンをクランキングして始動する際に、エンジン回転速度に関連して前記クランキングを終了するクランキング終了判定値について、前記剛性値が高い場合は低い場合に比較して該クランキング終了判定値が高くなり、前記ヒステリシスが大きい場合は小さい場合に比較して該クランキング終了判定値が高くなるように、該剛性値および該ヒステリシスに応じて該クランキング終了判定値を設定するエンジン始動制御部を有し、
前記クランキング終了判定値が前記制御値である
ことを特徴とする請求項1に記載の車両用制御装置。 - 前記特性検出部は、前記回転特性として前記回転部材のねじり角の変化に対する入力トルクの変化の割合に相当する剛性値、および前記ねじり角の増加時と減少時との入力トルクの差であるヒステリシスを検出するもので、
前記特性対応制御部は、前記電動機により前記エンジンに停止トルクを加えて回転停止させる際に、エンジン回転速度に関連して前記停止トルクを解除する停止トルク解除判定値について、前記剛性値が高い場合は低い場合に比較して該停止トルク解除判定値が高くなり、前記ヒステリシスが大きい場合は小さい場合に比較して該停止トルク解除判定値が高くなるように、該剛性値および該ヒステリシスに応じて該停止トルク解除判定値を設定するエンジン停止制御部を有し、
前記停止トルク解除判定値が前記制御値である
ことを特徴とする請求項1に記載の車両用制御装置。 - 前記特性検出部は、前記回転特性として前記回転部材のねじり角の変化に対する入力トルクの変化の割合に相当する剛性値、および前記ねじり角の増加時と減少時との入力トルクの差であるヒステリシスを検出するもので、
前記特性対応制御部は、前記制御値である前記エンジンのアイドル回転速度について、前記剛性値が高い場合は低い場合に比較して該アイドル回転速度が高くなり、前記ヒステリシスが大きい場合は小さい場合に比較して該アイドル回転速度が高くなるように、該剛性値および該ヒステリシスに応じて該アイドル回転速度を設定するアイドル回転制御部を有する
ことを特徴とする請求項1に記載の車両用制御装置。 - 前記アイドル回転制御部は、触媒暖機運転のアイドル時および該触媒暖機運転以外の通常アイドル時のアイドル回転速度について、前記剛性値および前記ヒステリシスに応じて別々に設定して該アイドル回転速度の制御を行なう
ことを特徴とする請求項7に記載の車両用制御装置。
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