JP7448085B2 - 車両用駆動装置 - Google Patents
車両用駆動装置 Download PDFInfo
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- JP7448085B2 JP7448085B2 JP2023502313A JP2023502313A JP7448085B2 JP 7448085 B2 JP7448085 B2 JP 7448085B2 JP 2023502313 A JP2023502313 A JP 2023502313A JP 2023502313 A JP2023502313 A JP 2023502313A JP 7448085 B2 JP7448085 B2 JP 7448085B2
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- torque
- control
- engagement
- automatic transmission
- transmission
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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
- B60W2710/02—Clutches
- B60W2710/027—Clutch torque
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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
- 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
- B60W2710/1005—Transmission ratio engaged
-
- 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
- B60W2710/105—Output torque
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
-
- 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)
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Automation & Control Theory (AREA)
- Power Engineering (AREA)
- Control Of Transmission Device (AREA)
Description
車両が備える内燃機関に駆動連結される入力部材と、
前記車両の車輪に駆動連結される出力部材と、
前記車輪の駆動力源として機能する回転電機と、
複数の変速段を選択的に形成可能に構成され、前記回転電機の側から伝達される回転を、複数の前記変速段のうちの形成された変速段に応じた変速比で変速して前記出力部材の側へ伝達する自動変速機と、
前記回転電機と前記自動変速機との間の動力伝達を断接する係合装置と、
前記回転電機、前記自動変速機、及び前記係合装置を制御する制御装置と、を備え、
前記係合装置を介して前記回転電機の側から前記自動変速機に伝達することが要求されるトルクを要求トルクとして、
前記制御装置は、
前記係合装置の伝達トルクが前記要求トルクに応じた大きさとなるように前記係合装置をスリップ係合状態とするトルク応答スリップ制御と、前記自動変速機の前記変速段を切り替える変速制御と、前記係合装置の前記伝達トルクを前記要求トルクよりも小さい制限値以下に制限する伝達トルク制限制御と、を実行可能に構成されており、
前記変速制御を実行する際に、前記トルク応答スリップ制御を実行中である場合には、前記トルク応答スリップ制御に代えて前記伝達トルク制限制御を実行する点にある。
車両が備える内燃機関EGに駆動連結される入力部材Iと、
車両の車輪Wに駆動連結される出力部材Oと、
車輪Wの駆動力源として機能する回転電機MGと、
複数の変速段を選択的に形成可能に構成され、回転電機MGの側から伝達される回転を、複数の変速段のうちの形成された変速段に応じた変速比で変速して出力部材Oの側へ伝達する自動変速機TMと、
回転電機MGと自動変速機TMとの間の動力伝達を断接する第1係合装置CL1と、
回転電機MG、自動変速機TM、及び第1係合装置CL1を制御する制御装置10と、を備え、
第1係合装置CL1を介して回転電機MGの側から自動変速機TMに伝達することが要求されるトルクを要求トルクTrとして、
制御装置10は、
第1係合装置CL1の伝達トルクTが要求トルクTrに応じた大きさとなるように第1係合装置CL1をスリップ係合状態とするトルク応答スリップ制御と、自動変速機TMの変速段を切り替える変速制御と、第1係合装置CL1の伝達トルクTを要求トルクTrよりも小さい制限値LM以下に制限する伝達トルク制限制御と、を実行可能に構成されており、
変速制御を実行する際に、トルク応答スリップ制御を実行中である場合には、トルク応答スリップ制御に代えて伝達トルク制限制御を実行する。
制御装置10は、内燃機関EGが動作中且つ入力部材Iの回転速度である入力回転速度が内燃機関EGのアイドル回転速度未満の状態で車両が走行していること、又は、車両の走行中に内燃機関EGを始動させること、に起因するトルク応答スリップ制御の実行中に、変速制御にて第2変速段から第1変速段への切り替えを実行する場合、車両のアクセル開度の上昇に応じて伝達トルク制限制御を開始する。
制御装置10は、トルク応答スリップ制御の実行中に、自動変速機TMをニュートラル状態から複数の変速段のいずれかを形成させる状態に移行させる変速制御が開始された場合、当該変速制御の開始に応じて伝達トルク制限制御を開始する。
(1)上記の実施形態では、制御装置10が、伝達トルク制限制御において、変速制御による自動変速機TMの変速段の切り替えが完了したと同時に、制限値LMを次第に上昇させる構成を例として説明した。しかし、そのような構成に限定されることなく、例えば、制御装置10が、伝達トルク制限制御において、変速制御による自動変速機TMの変速段の切り替えが完了した後、規定時間の経過後に制限値LMを次第に上昇させる構成としても良い。或いは、制御装置10が、伝達トルク制限制御において、変速制御による自動変速機TMの変速段の切り替えが完了した後、ステップ的に制限値LMを要求トルクTrまで上昇させる構成としても良い。
以下では、上記において説明した車両用駆動装置(100)の概要について説明する。
車両が備える内燃機関(EG)に駆動連結される入力部材(I)と、
前記車両の車輪(W)に駆動連結される出力部材(O)と、
前記車輪(W)の駆動力源として機能する回転電機(MG)と、
複数の変速段を選択的に形成可能に構成され、前記回転電機(MG)の側から伝達される回転を、複数の前記変速段のうちの形成された変速段に応じた変速比で変速して前記出力部材(O)の側へ伝達する自動変速機(TM)と、
前記回転電機(MG)と前記自動変速機(TM)との間の動力伝達を断接する係合装置(CL1)と、
前記回転電機(MG)、前記自動変速機(TM)、及び前記係合装置(CL1)を制御する制御装置(10)と、を備え、
前記係合装置(CL1)を介して前記回転電機(MG)の側から前記自動変速機(TM)に伝達することが要求されるトルクを要求トルク(Tr)として、
前記制御装置(10)は、
前記係合装置(CL1)の伝達トルク(T)が前記要求トルク(Tr)に応じた大きさとなるように前記係合装置(CL1)をスリップ係合状態とするトルク応答スリップ制御と、前記自動変速機(TM)の前記変速段を切り替える変速制御と、前記係合装置(CL1)の前記伝達トルク(T)を前記要求トルク(Tr)よりも小さい制限値(LM)以下に制限する伝達トルク制限制御と、を実行可能に構成されており、
前記変速制御を実行する際に、前記トルク応答スリップ制御を実行中である場合には、前記トルク応答スリップ制御に代えて前記伝達トルク制限制御を実行する。
前記制御装置(10)は、前記内燃機関(EG)が動作中且つ前記入力部材(I)の回転速度が前記内燃機関(EG)のアイドル回転速度未満の状態で前記車両が走行していること、又は、前記車両の走行中に前記内燃機関(EG)を始動させること、に起因する前記トルク応答スリップ制御の実行中に、前記変速制御にて前記第2変速段から前記第1変速段への切り替えを実行する場合、前記車両のアクセル開度の上昇に応じて前記伝達トルク制限制御を開始する。
前記制御装置(10)は、前記トルク応答スリップ制御の実行中に、前記自動変速機(TM)を前記ニュートラル状態から複数の前記変速段のいずれかを形成させる状態に移行させる前記変速制御が開始された場合、当該変速制御の開始に応じて前記伝達トルク制限制御を開始する。
Claims (6)
- 車両が備える内燃機関に駆動連結される入力部材と、
前記車両の車輪に駆動連結される出力部材と、
前記車輪の駆動力源として機能する回転電機と、
複数の変速段を選択的に形成可能に構成され、前記回転電機の側から伝達される回転を、複数の前記変速段のうちの形成された変速段に応じた変速比で変速して前記出力部材の側へ伝達する自動変速機と、
前記回転電機と前記自動変速機との間の動力伝達を断接する係合装置と、
前記内燃機関、前記回転電機、前記自動変速機、及び前記係合装置を制御する制御装置と、を備え、
前記係合装置を介して前記回転電機の側から前記自動変速機に伝達することが要求されるトルクを要求トルクとして、
前記制御装置は、
前記係合装置の伝達トルクが前記要求トルクに応じた大きさとなるように前記係合装置をスリップ係合状態とするトルク応答スリップ制御と、前記自動変速機の前記変速段を切り替える変速制御と、前記係合装置の前記伝達トルクを前記要求トルクよりも小さい制限値以下に制限する伝達トルク制限制御と、を実行可能に構成されており、
前記変速制御を実行する際に、前記トルク応答スリップ制御を実行中である場合には、前記トルク応答スリップ制御に代えて前記伝達トルク制限制御を実行し、前記トルク応答スリップ制御を実行中ではなく、前記係合装置が直結係合状態である場合には、前記内燃機関及び前記回転電機の出力トルクを前記制限値以下に制限する、車両用駆動装置。 - 前記制限値は、前記変速制御の実行中における前記自動変速機の伝達可能トルクに応じた値である、請求項1に記載の車両用駆動装置。
- 前記制御装置は、前記伝達トルク制限制御において、前記変速制御による前記自動変速機の前記変速段の切り替えが完了するタイミングに応じて、前記制限値を次第に上昇させる、請求項1又は2に記載の車両用駆動装置。
- 前記制御装置は、前記トルク応答スリップ制御の実行中、前記内燃機関と前記回転電機との出力トルクを合せたトルクを、前記要求トルクに近付けるように制御する、請求項1から3のいずれか一項に記載の車両用駆動装置。
- 複数の前記変速段は、第1変速段と、当該第1変速段よりも変速比が小さい第2変速段と、を含み、
前記制御装置は、前記内燃機関が動作中且つ前記入力部材の回転速度が前記内燃機関のアイドル回転速度未満の状態で前記車両が走行していること、又は、前記車両の走行中に前記内燃機関を始動させること、に起因する前記トルク応答スリップ制御の実行中に、前記変速制御にて前記第2変速段から前記第1変速段への切り替えを実行する場合、前記車両のアクセル開度の上昇に応じて前記伝達トルク制限制御を開始する、請求項1から4のいずれか一項に記載の車両用駆動装置。 - 前記自動変速機は、いずれの前記変速段も形成しないニュートラル状態に切り替え可能に構成され、
前記制御装置は、前記トルク応答スリップ制御の実行中に、前記自動変速機を前記ニュートラル状態から複数の前記変速段のいずれかを形成させる状態に移行させる前記変速制御が開始された場合、当該変速制御の開始に応じて前記伝達トルク制限制御を開始する、請求項1から4のいずれか一項に記載の車両用駆動装置。
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