JP4222427B2 - 車両およびその制御方法 - Google Patents
車両およびその制御方法 Download PDFInfo
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- JP4222427B2 JP4222427B2 JP2007085318A JP2007085318A JP4222427B2 JP 4222427 B2 JP4222427 B2 JP 4222427B2 JP 2007085318 A JP2007085318 A JP 2007085318A JP 2007085318 A JP2007085318 A JP 2007085318A JP 4222427 B2 JP4222427 B2 JP 4222427B2
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- 238000000034 method Methods 0.000 title claims description 17
- 239000003054 catalyst Substances 0.000 claims abstract description 216
- 238000010438 heat treatment Methods 0.000 claims abstract description 83
- 239000000498 cooling water Substances 0.000 claims abstract description 31
- 239000000446 fuel Substances 0.000 claims abstract description 27
- 238000002347 injection Methods 0.000 claims abstract description 13
- 239000007924 injection Substances 0.000 claims abstract description 13
- 238000002485 combustion reaction Methods 0.000 claims description 124
- 238000000746 purification Methods 0.000 claims description 28
- 238000003860 storage Methods 0.000 claims description 27
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 230000000977 initiatory effect Effects 0.000 claims 1
- 230000007246 mechanism Effects 0.000 description 28
- 238000009826 distribution Methods 0.000 description 21
- 230000010354 integration Effects 0.000 description 21
- 239000007789 gas Substances 0.000 description 18
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 15
- 238000010586 diagram Methods 0.000 description 11
- 230000009467 reduction Effects 0.000 description 11
- 238000004891 communication Methods 0.000 description 8
- 229930195733 hydrocarbon Natural products 0.000 description 8
- 150000002430 hydrocarbons Chemical class 0.000 description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 6
- 229910002091 carbon monoxide Inorganic materials 0.000 description 6
- 230000006866 deterioration Effects 0.000 description 6
- 238000012937 correction Methods 0.000 description 5
- 238000005485 electric heating Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000002826 coolant Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000009699 differential effect Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- B60K6/20—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
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- F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
- F01N13/0097—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
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- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
- F01N3/2013—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
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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
- B60K6/20—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
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- B60K6/26—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
- B60K2006/268—Electric drive motor starts the engine, i.e. used as starter motor
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Hybrid Electric Vehicles (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Description
内燃機関と電動機とを搭載し、少なくとも前記内燃機関の運転を停止した状態で走行可能な車両であって、
前記電動機と電力のやりとりが可能な蓄電手段と、
前記蓄電手段の状態に基づいて該蓄電手段から放電してもよい許容最大電力である出力制限を設定する出力制限設定手段と、
前記内燃機関の排気系に取り付けられ、前記内燃機関からの排気を浄化するための触媒を担持すると共に電力の供給を受けて該触媒を加熱する触媒担持加熱部材を有する排気浄化手段と、
前記蓄電手段からの電力の前記触媒担持加熱部材への供給を司る電力供給手段と、
前記排気浄化手段における触媒が所定温度未満であるのを推定する触媒温度推定手段と、
走行に要求される要求駆動力を設定する要求駆動力設定手段と、
前記内燃機関の運転を停止して前記設定された要求駆動力によって走行するよう前記内燃機関と前記電動機とを制御している最中に前記内燃機関の始動が要求されたとき、前記触媒温度推定手段により触媒が所定温度未満であると推定されないときには前記内燃機関の始動を伴って前記設定された出力制限の範囲内で前記設定された要求駆動力によって走行するよう前記内燃機関と前記電動機とを制御し、前記触媒温度推定手段により触媒が前記所定温度未満であると推定されたときには第1の所定時間に亘る前記触媒担持加熱部材への電力供給と該第1の所定時間内の少なくとも一部の時間に亘る前記内燃機関のモータリングと前記触媒担持加熱部材への電力供給の終了後の前記内燃機関の始動とを伴って前記設定された出力制限の範囲内で前記設定された要求駆動力によって走行するよう前記内燃機関と前記電動機と前記電力供給手段とを制御する制御手段と、
を備えることを要旨とする。
内燃機関と、電動機と、前記電動機と電力のやりとりが可能な蓄電手段と、前記内燃機関の排気系に取り付けられ、前記内燃機関からの排気を浄化するための触媒を担持すると共に電力の供給を受けて該触媒を加熱する触媒担持加熱部材を有する排気浄化手段と、前記蓄電手段からの電力の前記触媒担持加熱部材への供給を司る電力供給手段と、を搭載し、少なくとも前記内燃機関の運転を停止した状態で走行可能な車両の制御方法であって、
前記内燃機関の運転を停止して走行に要求される要求駆動力によって走行するよう前記内燃機関と前記電動機とを制御している最中に前記内燃機関の始動が要求されたとき、前記排気浄化手段における触媒が所定温度未満でないと推定されるときには前記内燃機関の始動を伴って前記蓄電手段から放電してもよい許容最大電力である出力制限の範囲内で前記要求駆動力によって走行するよう前記内燃機関と前記電動機とを制御し、前記排気浄化手段における触媒が所定温度未満であると推定されるときには第1の所定時間に亘る前記触媒担持加熱部材への電力供給と該第1の所定時間内の少なくとも一部の時間に亘る前記内燃機関のモータリングと前記触媒担持加熱部材への電力供給の終了後の前記内燃機関の始動とを伴って前記出力制限の範囲内で前記要求駆動力によって走行するよう前記内燃機関と前記電動機と前記電力供給手段とを制御する、
ことを特徴とする。
Tm2min=(Win-Tm1*・Nm1)/Nm2 (2)
Tm2max=(Wout-Tm1*・Nm1)/Nm2 (3)
Tm2*=max(min(Tm2tmp,Tm2max),Tm2min) (4)
Claims (7)
- 内燃機関と電動機とを搭載し、少なくとも前記内燃機関の運転を停止した状態で走行可能な車両であって、
前記電動機と電力のやりとりが可能な蓄電手段と、
前記蓄電手段の状態に基づいて該蓄電手段から放電してもよい許容最大電力である出力制限を設定する出力制限設定手段と、
前記内燃機関の排気系に取り付けられ、前記内燃機関からの排気を浄化するための触媒を担持すると共に電力の供給を受けて該触媒を加熱する触媒担持加熱部材を有する排気浄化手段と、
前記蓄電手段からの電力の前記触媒担持加熱部材への供給を司る電力供給手段と、
前記排気浄化手段における触媒が所定温度未満であるのを推定する触媒温度推定手段と、
走行に要求される要求駆動力を設定する要求駆動力設定手段と、
前記内燃機関の運転を停止して前記設定された要求駆動力によって走行するよう前記内燃機関と前記電動機とを制御している最中に前記内燃機関の始動が要求されたとき、前記触媒温度推定手段により触媒が所定温度未満であると推定されないときには前記内燃機関の始動を伴って前記設定された出力制限の範囲内で前記設定された要求駆動力によって走行するよう前記内燃機関と前記電動機とを制御し、前記触媒温度推定手段により触媒が前記所定温度未満であると推定されたときには前記触媒担持加熱部材の触媒が機能できる程度に加熱されるのに必要な第1の所定時間に亘る前記触媒担持加熱部材への電力供給と前記触媒担持加熱部材への電力供給を開始してから前記触媒担持加熱部材の触媒が若干加熱するのに必要な前記第1の所定時間より短い第2の所定時間が経過したときからの前記内燃機関のモータリングと前記触媒担持加熱部材への電力供給の終了後のモータリングしている前記内燃機関への燃料噴射および点火の開始による前記内燃機関の始動とを伴って前記設定された出力制限の範囲内で前記設定された要求駆動力によって走行するよう前記内燃機関と前記電動機と前記電力供給手段とを制御する制御手段と、
を備える車両。 - 前記触媒温度推定手段は、前記内燃機関の冷却水の温度に基づいて触媒が所定温度未満であるのを推定する手段である請求項1記載の車両。
- 前記触媒温度推定手段は、前記内燃機関を運転停止してからの経過時間に基づいて触媒が所定温度未満であるのを推定する手段である請求項1記載の車両。
- 前記排気浄化手段は、前記触媒担持加熱部材と前記内燃機関からの排気を浄化するための触媒を担持してなる触媒担持部材とを有し、排気の上流側から前記触媒担持加熱部材,前記触媒担持部材の順に配置されてなる手段である請求項1ないし3いずれか記載の車両。
- 請求項1ないし4いずれか記載の車両であって、
前記蓄電手段と電力のやりとりが可能で、車軸に連結された駆動軸に接続されると共に該駆動軸とは独立に回転可能に前記内燃機関の出力軸に接続され、電力と動力の入出力を伴って前記出力軸と前記駆動軸とに動力を出力する電力動力入出力手段を備え、
前記電動機は、前記駆動軸に動力を入出力可能に取り付けられてなる、
車両。 - 前記電力動力入出力手段は、動力を入出力可能な発電機と、前記駆動軸と前記出力軸と前記発電機の回転軸との3軸に接続され該3軸のうちのいずれか2軸に入出力される動力に基づいて残余の軸に動力を入出力する3軸式動力入出力手段と、を備える手段である請求項5記載の車両。
- 内燃機関と、電動機と、前記電動機と電力のやりとりが可能な蓄電手段と、前記内燃機関の排気系に取り付けられ、前記内燃機関からの排気を浄化するための触媒を担持すると共に電力の供給を受けて該触媒を加熱する触媒担持加熱部材を有する排気浄化手段と、前記蓄電手段からの電力の前記触媒担持加熱部材への供給を司る電力供給手段と、を搭載し、少なくとも前記内燃機関の運転を停止した状態で走行可能な車両の制御方法であって、
前記内燃機関の運転を停止して走行に要求される要求駆動力によって走行するよう前記内燃機関と前記電動機とを制御している最中に前記内燃機関の始動が要求されたとき、前記排気浄化手段における触媒が所定温度未満でないと推定されるときには前記内燃機関の始動を伴って前記蓄電手段から放電してもよい許容最大電力である出力制限の範囲内で前記要求駆動力によって走行するよう前記内燃機関と前記電動機とを制御し、前記排気浄化手段における触媒が前記所定温度未満であると推定されるときには前記触媒担持加熱部材の触媒が機能できる程度に加熱されるのに必要な第1の所定時間に亘る前記触媒担持加熱部材への電力供給と前記触媒担持加熱部材への電力供給を開始してから前記触媒担持加熱部材の触媒が若干加熱するのに必要な前記第1の所定時間より短い第2の所定時間が経過したときからの前記内燃機関のモータリングと前記触媒担持加熱部材への電力供給の終了後のモータリングしている前記内燃機関への燃料噴射および点火の開始による前記内燃機関の始動とを伴って前記出力制限の範囲内で前記要求駆動力によって走行するよう前記内燃機関と前記電動機と前記電力供給手段とを制御する、
ことを特徴とする車両の制御方法。
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