WO2007108166A1 - ハイブリッド車両 - Google Patents
ハイブリッド車両 Download PDFInfo
- Publication number
- WO2007108166A1 WO2007108166A1 PCT/JP2006/323069 JP2006323069W WO2007108166A1 WO 2007108166 A1 WO2007108166 A1 WO 2007108166A1 JP 2006323069 W JP2006323069 W JP 2006323069W WO 2007108166 A1 WO2007108166 A1 WO 2007108166A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cooling
- pcu
- cooling medium
- electric motor
- path
- Prior art date
Links
- 238000001816 cooling Methods 0.000 claims abstract description 109
- 230000007246 mechanism Effects 0.000 claims abstract description 85
- 239000002826 coolant Substances 0.000 claims abstract description 45
- 238000006243 chemical reaction Methods 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000000498 cooling water Substances 0.000 abstract description 55
- 238000009825 accumulation Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 abstract 1
- 239000003507 refrigerant Substances 0.000 description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 238000001514 detection method Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 239000003429 antifungal agent Substances 0.000 description 1
- 229940121375 antifungal agent Drugs 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- -1 nickel metal hydride Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000005070 ripening Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
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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
- 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
- B60K6/22—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 characterised by apparatus, components or means specially adapted for HEVs
-
- 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
- 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
- B60K6/42—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 characterised by the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
- B60K6/445—Differential gearing distribution type
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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
- 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
- B60K6/22—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 characterised by apparatus, components or means specially adapted for HEVs
- B60K6/36—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 characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
- B60K6/365—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 characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/16—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with provision for separate direct mechanical propulsion
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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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/30—Conjoint control of vehicle sub-units of different type or different function including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
-
- 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
- B60W20/00—Control systems specially adapted for hybrid vehicles
-
- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
-
- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2210/00—Converter types
- B60L2210/20—AC to AC converters
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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
- 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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- 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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- 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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Definitions
- the following is a description of the high-pitch ratio with an engine and an electric motor, and in particular, i) the power conversion section for driving the motor and the motor can be cooled.
- ' ⁇ No. 5 discloses a series-type hybrid vehicle that eliminates the cost of driving the motor for driving the refrigerant pressure pump by reducing the cost;:.
- a generator connected to the output shaft of the engine, a first refrigerant pressure pump connected to the generator shaft and pumping the refrigerant
- the cooling target by the refrigerant pumped by the pump for pumping is the inverter.
- the series hybrid vehicle is a hybrid vehicle in which only an electric motor that receives electric power from a generator connected to the output shaft of the engine generates vehicle driving force, and the engine does not generate vehicle 0 driving force directly.
- the configuration disclosed in Japanese Patent Laid-Open No. 2000-0 1 1 2 8 5 5 is based on the premise that a series-type hybrid vehicle, that is, the engine and Ryo Electric always operate during traveling.
- a series-type hybrid vehicle that is, the engine and Ryo Electric always operate during traveling.
- many hybrid vehicles in practical use have a parallel type that is capable of generating five-wheel drive force from either the engine or the electric motor.
- the parallel / series type is used, in which a series type element is further added to the parallel type configuration.
- the engine stops intermittently according to the driving conditions. For this reason, the configuration disclosed in Japanese Patent Application Laid-Open No. 2 0 4 -1 1 2 8 5 5 cannot be applied to parallel and parallel series hybrid 0 vehicles. Disclosure of the invention
- the present invention has been made in order to solve such problems, and an object of the present invention is to provide an electric motor and electric power in a high-speed five-bridged vehicle in which each of the engine and the electric motor is configured to be capable of generating vehicle driving force. It is to provide a hybrid vehicle that can stably cool the conversion section.
- the hybrid vehicle includes an engine and an electric motor each configured to generate vehicle driving force, an electric storage unit configured to be chargeable / dischargeable, and driving electric motors with electric power received from the electric storage unit.
- a power converter for conversion and a first cooling medium A first cooling mechanism that cools the electric motor, and a second cooling mechanism that cools the power conversion unit via the second cooling medium.
- the first cooling mechanism includes a first heat exchange unit that exchanges heat to cool the first cooling medium, and a first circulation path that includes the electric motor and the first heat exchange unit.
- a first delivery mechanism for circulating the first cooling medium, and the second cooling mechanism includes a second heat exchange unit that exchanges heat by cooling the second cooling medium, and a power conversion unit And a second delivery mechanism for flowing the second cooling medium in a second circulation path formed including the second heat exchanging portion, and the engine stops intermittently according to the running condition,
- the first and second delivery mechanisms are configured to be operable even when the engine is stopped.
- the hybrid vehicle according to the present invention includes a first cooling mechanism that cools the electric motor and a second cooling mechanism that cools the power conversion unit, and each of the first and second cooling mechanisms is stopped while the engine is stopped.
- First and second delivery mechanisms configured to be operable. As a result, even when the engine is stopped, the first and second cooling media are circulated and the cooling capacity can be generated.
- the hybrid vehicle according to the present invention includes an electric motor having different cooling requirements.
- the cooling capacity (for example, the size) of the first and second heat exchange units can be efficiently designed so as to satisfy the cooling requirements of the electric motor and the power conversion unit, respectively.
- the electric motor and the power conversion unit can be stably cooled.
- the first and second delivery mechanisms are electrically operated. '
- the first cooling mechanism includes a path for cooling the first cooling medium by directly contacting the first cooling medium with a coil constituting the electric motor.
- the second cooling mechanism is connected to the second circulation path at both ends, includes a power conversion unit, and allows the second cooling medium to be circulated through a path not including the second heat exchange unit.
- a bypass path formed, a path switching unit configured to be switchable so that the second cooling medium output from the power conversion unit flows through one of the second heat exchange unit and the bypass path, The path switching unit is controlled based on the temperature of the coolant 2 And a control unit.
- control unit switches the path so that the second cooling medium is circulated through the path including the power conversion unit and the second heat exchange unit when the temperature of the second cooling medium is equal to or higher than a predetermined value.
- the first cooling medium is made of oil.
- the second cooling medium consists of water.
- a hybrid vehicle configured such that each of the engine and the electric motor can generate a vehicle driving force
- a hybrid vehicle capable of stably cooling the electric motor and the power conversion unit can be realized.
- FIG. 1 is a schematic configuration diagram of a hybrid vehicle according to an embodiment of the present invention.
- FIG. 2 is a more detailed schematic configuration diagram of the delivery mechanism.
- FIG. 3 is a partial cross-sectional view showing the path of the motor cooling oil that is a part of the motor cooling mechanism.
- FIG. 4 is a partial cross-sectional view taken along line I V—IV in FIG.
- FIG. 5 is a schematic diagram showing the path of P C U cooling in the P C U cooling mechanism.
- FIG. 6 is a flowchart showing the control structure of the program executed by the control device. BEST MODE FOR CARRYING OUT THE INVENTION
- hybrid vehicle 100 includes an engine 2, a power storage unit 1 e, a transaxle 1, and a PCU (power control unit) 8.
- the engine 2 rotationally drives the drive shaft 10 using heat energy generated by combustion of fuel such as gasoline as a source, and generates drive force on the drive wheels 14.
- the power storage unit 16 is electrically connected to the PCU 8 and configured to be chargeable / dischargeable.
- the power storage unit 16 may be a chargeable / dischargeable secondary battery such as a nickel metal hydride battery or a lithium ion battery, or an electric battery. It consists of a large capacity capacitor such as a multilayer capacitor. Then, the power storage unit 16 receives the DC power supplied from the PCU 8 to store electric energy 5: and supplies the stored electric energy to the PCU 8 as DC power.
- the drain axle 1 is configured by integrating a transmission and an axle (axle), and includes an electric motor 6, a generator 7, and a power transmission mechanism 4.
- the transaxle 1 is configured to receive a rotational driving force from the engine 2 and the electric motor 6 mechanically coupled via the same drive shaft 10 and transmit the rotational drive force to the wheel shaft 12. That is, the transaxle 1 receives the rotational driving force from at least one of the engine 2 and the electric motor 6, and generates the vehicle driving force of the driving wheels 14 through the wheel shaft 12.
- the electric motor 6 is electrically connected to the PCU 8 and generates a rotational driving force with a predetermined torque in accordance with the AC power received from the PCU 8.
- the rotational driving force generated by the electric motor 6 is configured to be transmitted to the power transmission mechanism 4 together with the rotational driving force of the engine 2 via the drive shaft 10.
- the electric motor 6 generates electric energy.: (AC power) from the kinetic energy given through the driving wheel 14 at the time of regenerative braking of the hybrid vehicle 100: and supplies the generated AC power to the PCU 8.
- the generator 7 ⁇ receives a part of the rotational driving force of the drive shaft 10, generates AC power, and supplies it to the PCU 8.
- the motor 6 and the generator 7 are synchronous motors that rotate in synchronism with three-phase AC power, and in particular are composed of a permanent magnet type synchronous motor having a rotor in which permanent magnets are embedded.
- the power transmission mechanism 4 is disposed between the drive shaft 10 and the wheel shaft 12, and transmits the rotational drive force input through the drive shaft 10 to the wheel shaft 12, while part of the rotational drive force. Is transmitted to the generator 7.
- the power transmission mechanism 4 includes a power split mechanism that also serves as a speed change mechanism such as a planetary gear, and is input from the drive shaft 10 in accordance with a speed change command from an external ECU (Electrical Control Unit) (not shown).
- ECU Electronic Control Unit
- the PCU 8 converts the DC power supplied from the power storage unit 16 into an external ECU (not shown). According to the torque command and rotational speed command from the power storage unit 16 into an external ECU (not shown). According to the torque command and rotational speed command from the power storage unit 16 into an external ECU (not shown). According to the torque command and rotational speed command from the power storage unit 16 into an external ECU (not shown). According to the torque command and rotational speed command from the torque command and rotational speed command from an external ECU (not shown).
- ⁇ 1 ⁇ 8 consists of three-phase bridge circuits including switching elements such as 108 (Insulated Gate Bipolar Transistor) and power MOS OFT (Metal Oxide-. Semiconductor Field Effect Transistor).
- the engine 2 is intermittently stopped according to the traveling state. Specifically, the ECU (not shown) determines the vehicle driving force required for the engine 2 and the electric motor 6 according to the accelerator pedal depression amount, the brake pedal depression amount, and the shift lever selection position by the driver's operation. Then, when the vehicle driving force requirement for engine 2 becomes zero, engine 2 is stopped. When the vehicle speed exceeds a predetermined value or when rapid acceleration is required, E C U starts the engine 2 and generates a vehicle driving force from the engine 2.
- Hybrid vehicle 1 0 0 includes engine radiator 20, radiator fan 2 4, cooling water circulation path 2 2, electric motor radiator 3 4, cooling oil circulation path ⁇ 3 2, sending mechanism 3 0, PCU It further includes a radiator 44, a cooling water circulation path 42, a bypass path 48, a switching valve 46, a delivery mechanism 40, a temperature detector 52, and a control device 50.
- the engine radiator 2 ⁇ is a heat exchanging portion arranged on the front side of the hybrid vehicle 100 and forms a circulation path with the engine 2 via the cooling water circulation path 22.
- Engine circulation water containing alcohol (such as ethylene glycol) and fungicides circulates in this circulation path.
- the engine radiator 20 receives the airflow generated as the vehicle travels, exchanges heat between the engine coolant flowing inside and the atmosphere, and cools (dissipates heat) the engine coolant. That is, the engine coolant water absorbs the heat of the engine 2 (cools the engine 2), and radiates the absorbed heat from the engine radiator 20.
- Engine 2 is cooled by this process.
- the Rajta Juan 24 is disposed on the rear side of the engine radiator 20 and generates airflow from the rear side of the vehicle to the engine radiator 20 to increase the heat exchange efficiency in the engine radiator 20. .
- the motor radiator 3 4, the delivery mechanism 30 and the cooling oil circulation path 3 2 constitute a cooling mechanism for cooling the motor 6 through a certain motor cooling oil 5;
- the electric motor radiator 34 is, for example, a heat exchanging portion disposed further to the front side of the vehicle than the engine radiator 20.
- the electric motor radiator 34 forms a circulation path with the electric motor 6 via the cooling oil circulation path: path 3 2.
- Motor cooling oil circulates in this circulation path.
- the electric motor radiator 3 4 receives the air flow generated as the vehicle travels, exchanges heat between the motor cooling oil flowing inside and the atmosphere, and cools (dissipates heat) the motor cooling oil.
- this motor cooling oil absorbs the heat generated by the motor 6 (cools the motor 6), while dissipating the absorbed heat from the motor radiator 3 4; Pressure is applied to the motor cooling oil received from one end and sent from the other end so that the motor cooling oil flows through the circulation path 3 2 and flows through the cooling oil circulation path 3 2.
- the sending mechanism 3 0 The detailed configuration will be described later.
- the P C U radiator 4 4, the delivery mechanism 40 and the cooling water circulation path 4 2 constitute a cooling mechanism for cooling the P C U 8 via the P C U cooling water which is a cooling medium.
- the PCU radiator 4 4 is, as an example, a heat exchanging portion disposed further to the front side of the vehicle than the engine radiator 20. And? 11 Rajeta 4 4 forms a circulation path with the cooling water circulation path 2 (1 path 4 2 and PCU 8. This circulation path has the same alcohol (such as ethylene glycol) as the engine cooling water described above. ) And PCU cooling water containing antifungal agents circulate, and ⁇ 11 Rajta4 4 receives the airflow generated by the vehicle running and exchanges heat between the PCU cooling water flowing inside and the atmosphere.
- the PCU cooling water cools (dissipates heat), that is, the PCU cooling water absorbs the heat generated by P 5 CU 8 (cools PCU 8), while the absorbed heat is dissipated from the PCU;
- the delivery mechanism 4 0 is inserted into the cooling water circulation path 42 and applies pressure to the PCU cooling water received from one end so that the PCU cooling water flows through the cooling water circulation path 42 and delivers from the other end.
- the detailed configuration of the sending mechanism 40 will be described later.
- the cooling mechanism of the PCU 8 further includes a bypass path 48, a switching valve 46, a temperature detection unit 5; 2 and a control device 50.
- the bypass path 48 is formed so that both ends thereof are connected to the cooling water circulation path 42 so that the PCU cooling water can circulate the path including the PCU 8 and not including the PCU radiator 44.
- the switching valve 46 is inserted in a connection portion between the cooling water circulation path 42 and the bypass path 48. Then, the switching valve 46 switches the path so that the PCU cooling water output from the PCU 8 flows through either the PCU radiator 44 or the bypass path 48 in response to a control command from the control device 50. . That is, when the switching valve 46 selects the path of the PCU radiator 44, the PC cooling water output from the PCU 8 is sent out by the delivery mechanism 40 and cooled by the PCU radiator 44. On the other hand, when the switching valve 46 selects the bypass path 48, the PCU cooling water output from the PCU 8 is not cooled because it is circulated through the path including the PCU 8 and the bypass path 48.
- the temperature detection unit 52 is disposed between the delivery mechanism 40 and the switching valve 46, detects the temperature of the PCU cooling water flowing through the location, and outputs the detection result to the control device 50.
- the control device 50 gives a control command to the switching valve 46 based on the detection result from the temperature detection unit 52 in accordance with a control structure described later.
- the control device 50 is configured by an ECU or the like as an example.
- the delivery mechanism 30 includes a delivery pump 31, a pump drive motor 33, and a driver 35.
- the delivery pump 31 is mechanically coupled to the pump drive motor 33, applies pressure to the motor cooling oil received from one port by the rotational drive force of the pump drive motor 33, and sends it from the other boat.
- the delivery pump 31 generates pressure by rotating an impeller, a vane, and the like by a pump: drive motor 33.
- the pump drive motor 33 rotates in response to the command DRV 1 from the controller 50 in response to the electric power supplied from the driver 35.
- the pump drive motor 33 is a DC sensorless brushless motor.
- the driver 35 converts the DC power received from the power storage unit 16 (FIG. 1) into a predetermined voltage and supplies it to the pump drive motor 33.
- the delivery mechanism 40 is realized with substantially the same configuration as the delivery mechanism 30. In the delivery mechanism 3.0, instead of the delivery pump 31, the pump drive motor 33 and the driver 35, the delivery pump 41, the pump drive motor 43 and Detailed description 5 will not be repeated because the configuration is similar to that in which driver 45 is arranged and command DRV2 is used instead of command DRV1.
- the cooling mechanism of electric motor 6 (electric motor radiator 34, delivery mechanism 30 and cooling oil circulation path 32), and the cooling mechanism of PCU 8 (PCU radiator 44).
- the delivery mechanism 40 and the cooling water circulation path 42) are configured independently of each other. Therefore, according to the hybrid 10 vehicle 100, the amount of heat generated is increased regardless of the cooling request for the motor 6 that generates more heat as the generated vehicle driving force (consumed power) increases and the power supplied to the motor 6. cooling requirements and each for PCU 8 do not change efficiently satisfied: the cause can.
- the cooling capacity is determined so that the motor 6 whose calorific value fluctuates according to the driving conditions can be sufficiently cooled.
- the cooling capacity determined in this way often exceeds the required capacity for PCU8 with almost the same amount of ripening.
- the motor 6 since the cooling requirements required by the motor 6 and the PCU 8 do not match each other, the motor 6 must be configured to exhibit an excessive cooling capacity in accordance with the cooling requirement. 20: As a result, there was a problem that the radiator, the delivery mechanism, and the circulation path were enlarged.
- the cooling mechanism of electric motor 6 and PCU 8 is configured independently, so that the cooling capacity can be appropriately designed according to the amount of generated heat.
- Rajeta, delivery mechanism and circulation The size of the route can be made more efficient.
- FIG. 3 there is shown a partial cross section of each case that accommodates the accommodating chamber for accommodating electric motor 6, the reduction gear, and wheel shaft 12.
- electric motor 6 is placed in a storage chamber formed by partition wall 60.
- An electric motor cooling oil passage 64 is provided above the partition wall 60, and the passage 64 communicates with the oil reservoir 70 and the accommodation chamber of the electric motor 6.
- the oil outlet 74 communicates with the oil inlets 66.1, 66.2, and 66.3. Then, the motor cooling oil that has reached the passage 6 4 passes through the oil outlets P 68.1, 68.2, 68.3 provided in the partition wall 60 and is poured into the upper portion of the stator coil 62.
- the motor cooling oil poured into the upper portion of the stator coil 62 flows through the outer peripheral surface of the stator coil 62 while exchanging heat with the stator coil 62, and is returned to the bottom of the storage chamber. That is, the motor cooling oil directly contacts the stator coil 62 and cools the stator coil 62.
- two openings for communicating with the cooling oil circulation path 3 2 are provided at the bottom of the storage chamber, and a part of the stored motor cooling oil is circulated between the electric motor radiator 3 4 and the like.
- the electric motor 6 is cooled.
- a relatively high-temperature motor cooling oil that has absorbed the heat of the motor 6 is extracted from an opening located directly below the motor 6, and the motor cooling oil after being cooled by the motor radiator 3 4 is used as the differential gear 7 Returned to near the bottom of 6.
- the motor cooling oil is poured from the upper part of the electric motor 6 into the stator coil 62 and brought into direct contact therewith, the stator coil 62 that is the heat source of the electric motor 6 can be efficiently cooled. Therefore, even when the vehicle driving force generated by the electric motor 6 is large and the heat generation amount is large, the electric motor 6 can be stably cooled.
- the cooling mechanism of the electric motor 6 and the PCU 8 is configured independently of each other, so that the PCU radiator 44 can be downsized.
- water resistance increases with the miniaturization of PCU; As a result, the power consumption in the delivery mechanism 40 can be relatively increased. Therefore, the control device 50 suppresses the power consumption in the delivery mechanism 40 by reducing the time for the PCU cooling water to circulate between the 5 PCU 8 and the PCU radiator 44.
- the control device 50 controls the switching valve 46: gives a command to guide the PCU cooling water to the PCU radiator 44. If the temperature of the PCU cooling water output from the PCU 8 is less than the predetermined value, a control command is given to the switching valve 460 to circulate the PCU cooling water between the PCU 8 and the bypass path 48. ;.
- Fig. 5A shows the case where the temperature of the PCU cooling water is equal to or higher than a predetermined value.
- Figure 5B shows the case where the temperature of the PCU cooling water is less than the predetermined value.
- control device 5 device 50 gives a control command so that switching valve 46 selects the PCU radiator 44 side. Then, the PCU cooling water circulates between the PCU 8 and the PCU radiator 44. Therefore, the PC cooling water that has absorbed the heat of PCU8 (cooled PCU8) is cooled by the heat exchange by the PCU radiator 44.
- the controller 5 ⁇ allows the PCU radiator 44 to flow through the PCU radiator 44 only when the temperature of the PCU cooling water reaches a predetermined value or higher, and to the PCU radiator 44 during other periods.
- the PCU cooling water is circulated between the PCU 8 and the PCU 8 so that the PCU cooling water does not flow. To suppress the force.
- the control device 50 repeatedly executes the mouth chart shown in FIG. 6 at a predetermined cycle (for example, 100 msec).
- control device 50 obtains the temperature of the PCU cooling water from temperature detection unit 52 (step S 100). Then, control device 50 determines whether or not the temperature of the PCU cooling water is equal to or higher than a predetermined value (step S102).
- step S102 When the temperature of the PCU cooling water is equal to or higher than the predetermined value (in step S102, if YE: S), the control device 50 gives a control command to the switching valve 46 so as to select the PCU radiator 44 side (step S102). S 104).
- control device 50 gives a control command to switching valve 46 to select bypass path 48 (step S1 06).
- control device 50 returns to the first process.
- the electric motor radiator 34, the delivery mechanism 30 and the cooling oil circulation path 32 correspond to the “first cooling mechanism”, and the cooling oil circulation path 32 corresponds to the “first circulation path”.
- the electric motor radiator 34 corresponds to the “first heat exchanging part”, and the outlet mechanism 30 corresponds to “the first delivery mechanism ⁇ .
- the PCU radiator 44, the delivery / delivery mechanism 40, the cooling water circulation path 42, the bypass The path 48 and the switching valve 46 correspond to the “second cooling mechanism J”, the cooling water circulation path 42 corresponds to the “second circulation path”, and the PCU radiator 44 corresponds to the “second heat exchange section”.
- the sending mechanism 40 corresponds to the “second sending mechanism”, and the switching valve 46 corresponds to the “route switching unit”.
- the control device 50 corresponds to a “control unit”.
- the drive timing and speed of the pump drive motors 33 and 4; 3 are further controlled in accordance with the state of the cooling medium such as the motor cooling oil and the PCU cooling temperature.
- the configuration for cooling the electric motor 6 has been described in detail, but the generator 7 is cooled by the same configuration as the cooling configuration of the electric motor 6. You may comprise as follows.
- the present invention can also be applied to a vehicle equipped with an electric motor for driving the other wheel (not shown).
- Cooling mechanisms for cooling, and each cooling mechanism is operated by the electric power received from the power storage unit 16 (sending the cooling medium). As a result, even when the engine is stopped, l :;
- the rejection water is circulated to continuously cool the motor 6 and P C U 8. Therefore: Even in a hybrid vehicle where the engine is intermittently stopped, the electric motor and the power conversion unit can be stably cooled.
- the cooling mechanism for cooling the electric motor 6 and the cooling mechanism for cooling the PC: 15 U 8 are arranged independently, so that the radiator, A delivery mechanism, a circulation path, and the like can be appropriately designed.
- the radiator, A delivery mechanism, a circulation path, and the like can be appropriately designed.
- the amount of heat released from the miniaturized electric motor radiator 34 is reduced, the temperature rise of the airflow after passing through the electric motor radiator 34 is suppressed. For this reason, since the ambient temperature of the engine radiator 20 arranged on the rear side can be kept low, the heat dissipation efficiency of the engine radiator 2 can be increased, and the engine radiator 20 can be further downsized. 25.
- the motor cooling oil is poured onto the upper portion of the stator coil 62 of the electric motor 6, and the electric motor cooling oil flows while directly contacting the outer peripheral surface of the stator coil 62.
- the electric motor 6 is cooled.
- the stator coil 62 which is the heat source of the electric motor 6, can be efficiently cooled. Even when the motor 6 generates a large amount of heat during high-load operation such as during driving, the motor 6 can be cooled stably.
- PCU cooling water can be circulated.
- the water flow resistance increases with the downsizing of the PCU radiator 44, and even if the consumption in the delivery mechanism 40 (actually, the pump drive motor 43) increases, the PCU cooling water is supplied to the PCU 8 and Since the time ratio of circulation through the route including the PCU radiator 44 can be suppressed, overall power consumption can be suppressed.
- the cooling efficiency for the PCU 8 can be improved by increasing the flow rate of the PCU cooling water in contact with the PCU 8. In other words, it is possible to simultaneously improve the cooling efficiency for PCU 8 while suppressing the increase in power consumption accompanying the increase in water flow resistance.
- the cooling medium made of oil (electric motor cooling oil) is used for cooling the electric motor 6, thereby preventing deterioration of insulation and corrosion, and the electric motor.
- the cooling medium can be poured directly onto the top of the 6 stators. Therefore, efficient cooling of the electric motor 6 can be realized.
- the temperature rise of PCU8 can be limited to the boiling point of PCU cooling water by using a cooling medium consisting of water (PCU cooling water) for cooling PCU8.
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Power Engineering (AREA)
- Automation & Control Theory (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Hybrid Electric Vehicles (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2006800538766A CN101400557B (zh) | 2006-03-16 | 2006-11-14 | 混合动力车辆 |
EP06823470A EP1995143B1 (en) | 2006-03-16 | 2006-11-14 | Hybrid vehicle |
US12/224,177 US7823669B2 (en) | 2006-03-16 | 2006-11-14 | Hybrid vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-072834 | 2006-03-16 | ||
JP2006072834A JP4497113B2 (ja) | 2006-03-16 | 2006-03-16 | ハイブリッド車両 |
Publications (1)
Publication Number | Publication Date |
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WO2007108166A1 true WO2007108166A1 (ja) | 2007-09-27 |
Family
ID=38522204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/323069 WO2007108166A1 (ja) | 2006-03-16 | 2006-11-14 | ハイブリッド車両 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7823669B2 (ja) |
EP (1) | EP1995143B1 (ja) |
JP (1) | JP4497113B2 (ja) |
KR (1) | KR101013469B1 (ja) |
CN (1) | CN101400557B (ja) |
WO (1) | WO2007108166A1 (ja) |
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CN109878325A (zh) * | 2018-12-29 | 2019-06-14 | 北京新能源汽车技术创新中心有限公司 | 电动车冷却系统、电动车及电动车冷却系统控制方法 |
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Also Published As
Publication number | Publication date |
---|---|
EP1995143A1 (en) | 2008-11-26 |
CN101400557B (zh) | 2012-02-22 |
KR101013469B1 (ko) | 2011-02-14 |
JP2007245946A (ja) | 2007-09-27 |
KR20080109851A (ko) | 2008-12-17 |
EP1995143B1 (en) | 2012-04-18 |
US7823669B2 (en) | 2010-11-02 |
US20090195093A1 (en) | 2009-08-06 |
CN101400557A (zh) | 2009-04-01 |
EP1995143A4 (en) | 2011-05-04 |
JP4497113B2 (ja) | 2010-07-07 |
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