JP2008265681A - 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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- JP2008265681A JP2008265681A JP2007114645A JP2007114645A JP2008265681A JP 2008265681 A JP2008265681 A JP 2008265681A JP 2007114645 A JP2007114645 A JP 2007114645A JP 2007114645 A JP2007114645 A JP 2007114645A JP 2008265681 A JP2008265681 A JP 2008265681A
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- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/13—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- 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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- 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
- 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/52—Driving a plurality of drive axles, e.g. four-wheel drive
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- Electric Propulsion And Braking For Vehicles (AREA)
- Hybrid Electric Vehicles (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
【解決手段】エンジンと、エンジンの出力軸と駆動軸とに接続された遊星歯車機構と、遊星歯車機構に接続された第1モータと、駆動軸に動力を入出力可能な第2モータと、二つのモータと電力をやり取りするバッテリとを備える車両において、エンジン水温Twが閾値Twref未満でエンジンの間欠運転が禁止されているときには、電池温度Tbが所定温度Tα未満のときには、バッテリの残容量が低残容量と高残容量とが交互に繰り返されて強制的に充放電される(昇温制御)と共にバッテリの入出力制限の範囲内で要求トルクにより走行するよう制御し、電池温度Tbが所定温度Tα以上で所定温度Tβ未満のときには、バッテリの残容量が通常時よりも低い所定の低残容量に近づくよう充放電される(低SOC制御)と共にバッテリの入出力制限の範囲内で要求トルクにより走行するよう制御する。
【選択図】図11
Description
内燃機関と、
該内燃機関からの動力の少なくとも一部を用いて発電する発電手段と、
車軸に動力を入出力する電動機と、
前記発電手段および前記電動機と電力をやり取りする蓄電手段と、
該蓄電手段の温度を検出する温度検出手段と、
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、
前記内燃機関の間欠運転が禁止されていないときには該内燃機関の間欠運転を伴って該蓄電手段の蓄電量が所定の目標蓄電量で調整されると共に前記設定された要求駆動力に基づく駆動力により走行するよう該内燃機関と前記発電手段と前記電動機とを制御し、前記内燃機関の間欠運転が禁止されているときには該内燃機関の運転を継続して該蓄電手段を昇温させるための昇温用の充放電を伴って前記設定された要求駆動力に基づく駆動力により走行するよう前記内燃機関と前記発電手段と前記電動機とを制御する昇温制御と前記内燃機関の運転を継続して前記蓄電手段の蓄電量が前記所定の目標蓄電量よりも低い低目標蓄電量で調整されると共に前記設定された要求駆動力に基づく駆動力により走行するよう前記内燃機関と前記発電手段と前記電動機とを制御する低蓄電量制御とを含む複数の制御を前記検出された蓄電手段の温度に基づいて切り替えて実行する制御手段と
を備えることを要旨とする。
内燃機関と、該内燃機関からの動力の少なくとも一部を用いて発電する発電手段と、車軸に動力を入出力する電動機と、前記発電手段および前記電動機と電力をやり取りする蓄電手段とを備える車両の制御方法であって、
(a)走行に要求される要求駆動力を設定し、
(b)前記内燃機関の間欠運転が禁止されていないときには該内燃機関の間欠運転を伴って該蓄電手段の蓄電量が所定の目標蓄電量で調整されると共に前記設定された要求駆動力に基づく駆動力により走行するよう該内燃機関と前記発電手段と前記電動機とを制御し、前記内燃機関の間欠運転が禁止されているときには該内燃機関の運転を継続して該蓄電手段を昇温させるための昇温用の充放電を伴って前記設定された要求駆動力に基づく駆動力により走行するよう前記内燃機関と前記発電手段と前記電動機とを制御する昇温制御と前記内燃機関の運転を継続して前記蓄電手段の蓄電量が前記所定の目標蓄電量よりも低い低目標蓄電量で調整されると共に前記設定された要求駆動力に基づく駆動力により走行するよう前記内燃機関と前記発電手段と前記電動機とを制御する低蓄電量制御とを含む複数の制御を前記蓄電手段の温度に基づいて切り替えて実行する
ことを特徴とする。
なる。なお、モータMG1,MG2により電力収支のバランスをとるものとすれば、バッテリ50は充放電されない。モータMG1,MG2は、いずれもモータ用電子制御ユニット(以下、モータECUという)40により駆動制御されている。モータECU40には、モータMG1,MG2を駆動制御するために必要な信号、例えばモータMG1,MG2の回転子の回転位置を検出する回転位置検出センサ43,44からの信号や図示しない電流センサにより検出されるモータMG1,MG2に印加される相電流などが入力されており、モータECU40からは、インバータ41,42へのスイッチング制御信号が出力されている。モータECU40は、ハイブリッド用電子制御ユニット70と通信しており、ハイブリッド用電子制御ユニット70からの制御信号によってモータMG1,MG2を駆動制御すると共に必要に応じてモータMG1,MG2の運転状態に関するデータをハイブリッド用電子制御ユニット70に出力する。
Tm1*=ρ・Te*/(1+ρ)+k1(Nm1*-Nm1)+k2∫(Nm1*-Nm1)dt (2)
Tm2min=(Win-Tm1*・Nm1)/Nm2 (4)
Tm2max=(Wout-Tm1*・Nm1)/Nm2 (5)
Tm2*=max(min(Tm2tmp,Tm2max),Tm2min) (6)
Claims (9)
- 内燃機関と、
該内燃機関からの動力の少なくとも一部を用いて発電する発電手段と、
車軸に動力を入出力する電動機と、
前記発電手段および前記電動機と電力をやり取りする蓄電手段と、
該蓄電手段の温度を検出する温度検出手段と、
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、
前記内燃機関の間欠運転が禁止されていないときには該内燃機関の間欠運転を伴って該蓄電手段の蓄電量が所定の目標蓄電量で調整されると共に前記設定された要求駆動力に基づく駆動力により走行するよう該内燃機関と前記発電手段と前記電動機とを制御し、前記内燃機関の間欠運転が禁止されているときには該内燃機関の運転を継続して該蓄電手段を昇温させるための昇温用の充放電を伴って前記設定された要求駆動力に基づく駆動力により走行するよう前記内燃機関と前記発電手段と前記電動機とを制御する昇温制御と前記内燃機関の運転を継続して前記蓄電手段の蓄電量が前記所定の目標蓄電量よりも低い低目標蓄電量で調整されると共に前記設定された要求駆動力に基づく駆動力により走行するよう前記内燃機関と前記発電手段と前記電動機とを制御する低蓄電量制御とを含む複数の制御を前記検出された蓄電手段の温度に基づいて切り替えて実行する制御手段と
を備える車両。 - 前記制御手段は、前記内燃機関の間欠運転が禁止されているときには、前記検出された蓄電手段の温度が第1の所定温度未満のときには前記昇温制御を実行し、前記検出された蓄電手段の温度が前記第1の所定温度以上のときには前記低蓄電量制御を実行する手段である請求項1記載の車両。
- 前記制御手段は、前記内燃機関の間欠運転が禁止されているときには、前記検出された蓄電手段の温度が前記第1の所定温度よりも大きい第2の所定温度以上のときには前記内燃機関の運転を継続して該蓄電手段の蓄電量が前記所定の目標蓄電量で調整されると共に前記設定された要求駆動力に基づく駆動力により走行するよう該内燃機関と前記発電手段と前記電動機とを制御する手段である請求項2記載の車両。
- 前記制御手段は、前記内燃機関の冷却水温が所定水温未満のときを前記内燃機関の間欠運転を禁止する間欠運転禁止条件の一つとして制御する手段である請求項1ないし3いずれか記載の車両。
- 前記制御手段は、前記検出された蓄電手段の温度と該蓄電手段の残容量とに基づいて該蓄電手段の入出力制限を設定し、該設定した入出力制限の範囲内で前記設定された要求駆動力により走行するよう前記内燃機関と前記発電手段と前記電動機とを制御する手段である請求項1ないし4いずれか記載の車両。
- 前記蓄電手段は、リチウムイオン電池である請求項1ないし5いずれか記載の車両。
- 前記発電手段は、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して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該内燃機関からの動力の少なくとも一部を該駆動軸に出力可能な電力動力入出力手段である請求項1ないし6いずれか記載の車両。
- 前記電力動力入出力手段は、動力を入出力する発電機と、前記内燃機関の出力軸と前記発電機の回転軸と前記駆動軸の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1軸に動力を入出力する3軸式の動力入出力手段とを備える手段である請求項7記載の車両。
- 内燃機関と、該内燃機関からの動力の少なくとも一部を用いて発電する発電手段と、車軸に動力を入出力する電動機と、前記発電手段および前記電動機と電力をやり取りする蓄電手段とを備える車両の制御方法であって、
(a)走行に要求される要求駆動力を設定し、
(b)前記内燃機関の間欠運転が禁止されていないときには該内燃機関の間欠運転を伴って該蓄電手段の蓄電量が所定の目標蓄電量で調整されると共に前記設定された要求駆動力に基づく駆動力により走行するよう該内燃機関と前記発電手段と前記電動機とを制御し、前記内燃機関の間欠運転が禁止されているときには該内燃機関の運転を継続して該蓄電手段を昇温させるための昇温用の充放電を伴って前記設定された要求駆動力に基づく駆動力により走行するよう前記内燃機関と前記発電手段と前記電動機とを制御する昇温制御と前記内燃機関の運転を継続して前記蓄電手段の蓄電量が前記所定の目標蓄電量よりも低い低目標蓄電量で調整されると共に前記設定された要求駆動力に基づく駆動力により走行するよう前記内燃機関と前記発電手段と前記電動機とを制御する低蓄電量制御とを含む複数の制御を前記蓄電手段の温度に基づいて切り替えて実行する
ことを特徴とする車両の制御方法。
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