JP6919611B2 - 車両の温度制御装置 - Google Patents
車両の温度制御装置 Download PDFInfo
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- JP6919611B2 JP6919611B2 JP2018058275A JP2018058275A JP6919611B2 JP 6919611 B2 JP6919611 B2 JP 6919611B2 JP 2018058275 A JP2018058275 A JP 2018058275A JP 2018058275 A JP2018058275 A JP 2018058275A JP 6919611 B2 JP6919611 B2 JP 6919611B2
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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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- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Description
実施装置は、機関システム温度制御装置10、ハイブリッドシステム温度制御装置20及び回路連結装置30を備える。機関システム温度制御装置10は、機関温度制御装置11、暖房装置12及び機関システム連結装置13を含む。ハイブリッドシステム温度制御装置20は、バッテリ温度制御装置21、デバイス温度制御装置22及びハイブリッドシステム連結装置23を備える。
<機関温度制御装置>
機関温度制御装置11は、機関システム循環回路10Cとしての機関循環回路11C、機関ラジエータ11R、機関ポンプ11P及び機関遮断弁11Vを備える。
暖房装置12は、機関システム循環回路10Cとしての暖房循環回路12C、ヒータコア12H、暖房ポンプ12P及び暖房遮断弁12Vを備える。
機関システム連結装置13は、第1機関システム連結通路13Pa、第2機関システム連結通路13Pb、第1機関システム遮断弁13Va及び第2機関システム遮断弁13Vbを備える。
<バッテリ温度制御装置>
バッテリ温度制御装置21は、ハイブリッドシステム循環回路20Cとしてのバッテリ循環回路21C、ヒートポンプ40、バッテリポンプ21P及びバッテリ遮断弁21Vを備える。
ヒートポンプ40は、第1蒸発器41Ea、第2蒸発器41Eb、凝縮器41C、コンプレッサ41Com、第1膨張弁41Va、及び、第2膨張弁41Vbを備える。更に、ヒートポンプ40は、第1乃至第4ヒートポンプ通路41Pa乃至41Pdを備える。
デバイス温度制御装置22は、ハイブリッドシステム循環回路20Cとしてのデバイス循環回路22C、デバイスラジエータ22R、デバイスポンプ22P及びデバイス遮断弁22Vを備える。
ハイブリッドシステム連結装置23は、第1ハイブリッドシステム連結通路23Pa、第2ハイブリッドシステム連結通路23Pb、第1ハイブリッドシステム遮断弁23Va及び第2ハイブリッドシステム遮断弁23Vbを備える。
回路連結装置30は、第1回路連結通路31Pa、第2回路連結通路31Pb、第1回路遮断弁31Va及び第2回路遮断弁31Vbを備える。
システム起動スイッチ91は、車両100の運転者によって操作されるスイッチである。システム起動スイッチ91は、ECU90に電気的に接続されている。システム起動スイッチ91が運転者によってオン位置に設定されると、ECU90は、車輪駆動軸160を介して駆動輪170に供給されるべき出力Pdrive(以下、「要求駆動力Pdrive」と称呼する。)に応じて「機関運転(即ち、機関110の運転)、第1MG111の駆動及び第2MG112の駆動」を行う状態となる。一方、システム起動スイッチ91が運転者によってオフ位置に設定されると、ECU90は、「機関運転、第1MG111の駆動及び第2MG112の駆動」を停止する。
暖房スイッチ92は、車両100の運転者によって操作されるスイッチである。暖房スイッチ92は、ECU90に電気的に接続されている。システム起動スイッチ91がオン位置に設定されているときに暖房スイッチ92が運転者によってオン位置に設定されると、ECU90は、車両100の室内を暖房する要求があると判断する。一方、システム起動スイッチ91がオン位置に設定されているときに暖房スイッチ92が運転者によってオフ位置に設定されると、ECU90は、車両100の室内を暖房する要求がないと判断する。
機関水温センサ93は、「機関通路11Peの出口」と「第1機関循環通路11Paと第1回路連結通路31Paとの接続部分」との間において第1機関循環通路11Paに配設されている。機関水温センサ93は、ECU90に電気的に接続されている。機関水温センサ93は、機関通路11Peから流出する冷却水の温度を検出し、その温度を表す信号をECU90に出力する。ECU90は、その信号に基づいて機関通路11Peから流出する冷却水の温度を機関水温Tw_engとして取得する。
次に、実施装置の作動の概要について説明する。
実施装置は、公知のように、車輪駆動軸160を介して駆動輪170に供給されるべき出力Pdrive(即ち、要求駆動力Pdrive)の大きさに応じて、機関110を運転させたり、第2MG112を電動機として駆動させたり、第1MG111を電動機として駆動させたりする。より具体的に述べると、実施装置は、要求駆動力Pdriveに応じて、第1MG111及び第2MG112を電動機として駆動させずに機関110を運転させたり、機関110を運転させずに第1MG111及び/又は第2MG112を電動機として駆動させたり、機関110を運転させつつ第1MG111及び/又は第2MG112を電動機として駆動させたりする。
システム起動スイッチ91がオン位置に設定された場合、要求駆動力Pdriveに応じて機関110が運転されたり、第2MG112が電動機として駆動されたりする。
更に、実施装置は、システム起動スイッチ91がオン位置に設定されているときに暖房スイッチ92がオン位置に設定された場合、車両100の室内を暖房する要求があり、従って、ヒータコア12Hの温度を上昇させるためにヒータコア12Hを加熱する要求(以下、「ヒータコア加熱要求」と称呼する。)があると判断する。
以上説明したように、実施装置は、バッテリ暖機要求の有無及びヒータコア加熱要求の有無を判断する。その結果、バッテリ暖機要求がある場合、実施装置は、デバイス通路22Pdを流れる間にデバイス180によって加熱された冷却水をバッテリ通路21Pbatに供給することにより、バッテリ120を暖機することができる。又、実施装置は、機関通路11Peを流れる間に機関110によって加熱された冷却水をバッテリ通路21Pbatに供給することにより、バッテリ120を暖機することができる。
機関水温Tw_engが最低要求水温Tw_min以上である場合、実施装置は、バッテリ水温Tw_batが所定の切替水温Tw_swよりも低い間、以下に述べる第1制御を実行する。
その後、バッテリ水温Tw_batが切替水温Tw_swまで上昇すると、実施装置は、第1制御を終了する。そして、機関水温Tw_engが許容上限水温Tw_max以下である場合には、実施装置は、以下に述べる第2制御を実行する。
一方、機関水温Tw_engが許容上限水温Tw_maxよりも高い場合、実施装置は、以下に述べる第3制御を実行する。
次に、実施装置の具体的な作動について説明する。実施装置のECU90のCPU(以下、単に「CPU」と称呼する。)は、システム起動スイッチ91がオン位置に設定されると、図6にフローチャートにより示したルーチンを所定時間の経過毎に実行するようになっている。
Claims (6)
- 熱交換液を流すために車両の内燃機関に形成された機関通路、
熱交換液を流すために前記車両のバッテリに形成されたバッテリ通路、
前記機関通路から流出する熱交換液を前記バッテリ通路に供給する第1通路、
前記バッテリ通路から流出する熱交換液を前記機関通路に戻す第2通路、及び、
前記第1通路を流れる熱交換液を冷却可能に配設されたヒートポンプ、
を備えた車両の温度制御装置において、
前記バッテリを暖機する要求があるときに前記機関通路から流出する熱交換液の温度が許容上限温度以下である場合、前記ヒートポンプを停止させた状態で前記第1通路を介して前記機関通路から前記バッテリ通路に熱交換液を供給し、
前記バッテリを暖機する要求があるときに前記機関通路から流出する熱交換液の温度が前記許容上限温度よりも高い場合、前記ヒートポンプを作動させて前記第1通路を流れる熱交換液を冷却しつつ、前記第1通路を介して前記機関通路から前記バッテリ通路に熱交換液を供給する、
ように構成された、
車両の温度制御装置。 - 請求項1に記載の車両の温度制御装置において、
熱交換液を流すために前記車両の暖房用ヒータコアに形成されたヒータコア通路、
熱交換液を流すために前記ヒートポンプの凝縮器に形成された凝縮器通路、
前記凝縮器通路から流出した熱交換液を前記ヒータコア通路に供給する第3通路、及び、
前記ヒータコア通路から流出した熱交換液を前記凝縮器通路に戻す第4通路、
を更に備え、
前記バッテリを暖機する要求があり且つ前記機関通路から流出する熱交換液の温度が前記許容上限温度よりも高いときに前記ヒータコアを加熱する要求がある場合、前記第3通路を介して前記凝縮器通路から前記ヒータコア通路に熱交換液を供給するように構成された、
車両の温度制御装置。
- 請求項1又は請求項2に記載の車両の温度制御装置において、
前記バッテリを暖機する要求があり且つ前記機関通路から流出する熱交換液の温度が前記許容上限温度以下であるときに前記機関通路から流出する熱交換液の温度が前記許容上限温度よりも低い最低要求温度以上である場合、前記第1通路を介した前記機関通路から前記バッテリ通路への熱交換液の供給を許可し、
前記バッテリを暖機する要求があり且つ前記機関通路から流出する熱交換液の温度が前記許容上限温度以下であるときでも前記機関通路から流出する熱交換液の温度が前記最低要求温度よりも低い場合、前記第1通路を介した前記機関通路から前記バッテリ通路への熱交換液の供給を禁止する、
ように構成された、
車両の温度制御装置。
- 請求項1又は請求項2に記載の車両の温度制御装置において、
前記機関通路から流出した熱交換液を前記ヒータコア通路に供給する第5通路、及び、
前記ヒータコア通路から流出した熱交換液を前記機関通路に戻す第6通路、
を更に備え、
前記バッテリを暖機する要求があり且つ前記ヒータコアを加熱する要求があるときに前記バッテリ通路から流出する熱交換液の温度が所定の切替温度よりも低い場合、前記第1通路を介した前記機関通路から前記バッテリ通路への熱交換液の供給を禁止すると共に、前記第5通路を介して前記機関通路から前記ヒータコア通路に熱交換液を供給し、
前記バッテリを暖機する要求があり且つ前記ヒータコアを加熱する要求があるときに前記バッテリ通路から流出する熱交換液の温度が前記所定の切替温度以上である場合、前記第1通路を介した前記機関通路から前記バッテリ通路への熱交換液の供給を許可すると共に、前記第5通路を介して前記機関通路から前記ヒータコア通路に熱交換液を供給する、
ように構成された、
車両の温度制御装置。 - 請求項4に記載の車両の温度制御装置において、
熱交換液を流すために前記車両のモータを含むデバイスに形成されたデバイス通路、
前記デバイス通路から流出した熱交換液を前記バッテリ通路に供給する第7通路、及び、
前記バッテリ通路から流出した熱交換液を前記デバイス通路に戻す第8通路、
を更に備え、
前記バッテリを暖機する要求があり且つ前記ヒータコアを加熱する要求があるときに前記バッテリ通路から流出する熱交換液の温度が前記所定の切替温度よりも低い場合、前記第7通路を介して前記デバイス通路から前記バッテリ通路に熱交換液を供給するように構成された、
車両の温度制御装置。 - 請求項4又は請求項5に記載の車両の温度制御装置において、
前記バッテリを暖機する要求があり且つ前記バッテリ通路から流出する熱交換液の温度が前記所定の切替温度以上であるときに前記機関通路から流出する熱交換液の温度が前記許容上限温度よりも低い最低要求温度以上である場合、前記第1通路を介した前記機関通路から前記バッテリ通路への熱交換液の供給を許可し、
前記バッテリを暖機する要求があり且つ前記バッテリ通路から流出する熱交換液の温度が前記所定の切替温度以上であるときでも前記機関通路から流出する熱交換液の温度が前記最低要求温度よりも低い場合、前記第1通路を介した前記機関通路から前記バッテリ通路への熱交換液の供給を禁止する、
ように構成された、
車両の温度制御装置。
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