WO2016080216A1 - Hybrid system, hybrid vehicle, and electric power supply method for hybrid system - Google Patents

Hybrid system, hybrid vehicle, and electric power supply method for hybrid system Download PDF

Info

Publication number
WO2016080216A1
WO2016080216A1 PCT/JP2015/081337 JP2015081337W WO2016080216A1 WO 2016080216 A1 WO2016080216 A1 WO 2016080216A1 JP 2015081337 W JP2015081337 W JP 2015081337W WO 2016080216 A1 WO2016080216 A1 WO 2016080216A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
battery
power lines
hybrid system
electric power
Prior art date
Application number
PCT/JP2015/081337
Other languages
French (fr)
Japanese (ja)
Inventor
充宏 阿曽
Original Assignee
いすゞ自動車株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by いすゞ自動車株式会社 filed Critical いすゞ自動車株式会社
Publication of WO2016080216A1 publication Critical patent/WO2016080216A1/en

Links

Images

Classifications

    • 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • 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
    • B60K6/28—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 electric energy storing means, e.g. batteries or capacitors
    • 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
    • B60K6/48—Parallel type
    • B60K6/485—Motor-assist type
    • 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
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • 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
    • 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
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • 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
    • B60L9/00—Electric propulsion with power supply external to the vehicle
    • B60L9/16—Electric propulsion with power supply external to the vehicle using ac induction motors
    • B60L9/18—Electric propulsion with power supply external to the vehicle using ac induction motors fed from dc supply lines
    • 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
    • B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
    • B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
    • 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
    • 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

Definitions

  • the present invention relates to a hybrid system, a hybrid vehicle, and a power supply method for a hybrid system in which both an internal combustion engine and a motor generator are mounted, and electric power generated by the motor generator is stored in a battery.
  • a hybrid vehicle equipped with both an internal combustion engine and a motor generator, and a hybrid system that stores the electric power generated by the motor generator in a battery, is the power generated by the motor generator driven by the engine, and braking of the vehicle.
  • regenerative power generated by a motor generator is stored in a battery, and the vehicle is driven using the power of the battery or assist output to engine output.
  • the battery used in the hybrid system is set to a relatively high voltage, for example, 200V.
  • the battery that outputs this high voltage needs to be able to cut off the power of the battery from the outside in terms of safety against electric shock.
  • a secondary battery and a capacitor that output a high voltage such as nickel hydride and lithium ion are used in a vehicle power supply system.
  • a configuration including at least one system main relay including at least one system main relay.
  • a power supply system includes a first power storage device, a first converter, a first switching device provided between the first converter and the first power storage device, and a second power storage device.
  • a vehicle power supply device for controlling the second converter is proposed in which the control device causes the fuse to blow by flowing a large current exceeding the allowable current value to the fuse when a vehicle collision occurs. Been That.
  • the battery used in the hybrid system mounted on the passenger car has a high voltage specification exceeding 200 V, and is often composed of a secondary battery such as nickel metal hydride or lithium ion. For this reason, it is determined by a rule that the power supply is cut off, and various measures as described above are made. Therefore, there is a problem that the power storage system becomes complicated.
  • the present invention has been made in view of the above, and an object of the present invention is to eliminate the need for an emergency battery power shut-off system, to simplify the power storage system, and to be unexpected.
  • a hybrid system, a hybrid vehicle, and a power supply method for a hybrid system having an inexpensive and highly safe power storage system that has redundancy even in the event of a disconnection of an electric wire and can secure a degree of freedom in wiring even in a narrow space. It is to provide.
  • a hybrid system of the present invention is a hybrid system including both an internal combustion engine and a motor generator, between the motor generator and a battery that stores electric power generated by the motor generator.
  • an inverter is provided to move power through the inverter
  • the battery is formed of a battery having a voltage of 60 V or less
  • a power line connecting the inverter and the battery is added It is composed of a total of four power lines, ie, two power lines and two minus power lines, or a total of six power lines, three plus power lines and three minus power lines.
  • the voltage of the battery is set to 60 V or less, there is little danger even if the power from the battery flows to the human body in an emergency, so there is no need to provide a mechanism for cutting off the power from the battery.
  • the power storage system can be made simple.
  • the battery voltage is set to 60V or less, for example 48V
  • the output of the motor generator equivalent to the conventional system exceeding 200V is maintained or increased
  • the current value increases by the amount of the voltage decrease.
  • the resistance of the power line as a whole can be reduced by using four or six power lines. Thereby, the problem of power loss due to an increase in current can be solved, and a battery having a voltage of 60 V or less can be used more efficiently (or at a higher output) by the battery of the hybrid system.
  • the control device of the hybrid system limits the function due to a failure (so-called limp home function)
  • limp home function when it is configured to stop the energization of the power line diagnosed as disconnected and limit the output according to the number of remaining power lines, even if some of the power lines are disconnected, the remaining power lines
  • the power between the battery and the inverter can be moved without hindrance, and the transfer to the repair shop can be performed smoothly.
  • a hybrid vehicle of the present invention for achieving the above object is a hybrid vehicle equipped with the above hybrid system. According to this hybrid vehicle, the same effects as the above hybrid system can be achieved.
  • a power supply method for a hybrid system is a power supply method for a hybrid system including both an internal combustion engine and a motor generator.
  • the power generated by the motor generator is passed through an inverter.
  • the voltage is 60V with 2 power lines for plus 2 and 2 power lines for minus, or 4 power lines in total, or 3 power lines for plus and 3 power lines for minus.
  • the method is characterized in that the following battery is supplied and stored. According to this method, the same effect as the above hybrid system can be obtained.
  • a battery having a voltage of 60 V or less is used. Therefore, there is little danger even if the power from the battery flows to one person in an emergency. Therefore, it is not necessary to provide a mechanism for cutting off the electric power from the battery, and the power storage system can be simplified.
  • the inverter and the battery are connected by four or six power lines, redundancy is provided for unexpected electric wire disconnection failure, and the power line per line Since the required capacity of the power supply is reduced and the thickness of one power line can be reduced, the radius of curvature that can be bent is reduced, so that wiring can be facilitated even in narrow spaces, and the flexibility of layout can be secured. A high power storage system can be obtained.
  • FIG. 1 is a diagram showing a configuration of a hybrid system and a hybrid vehicle according to an embodiment of the present invention.
  • the hybrid system of this embodiment is a hybrid system having an engine (internal combustion engine) and a motor generator (M / G).
  • the hybrid system is described as being mounted on a hybrid vehicle (HEV: hereinafter referred to as a vehicle), but the hybrid system itself is not necessarily limited to that mounted on the vehicle.
  • HEV hybrid vehicle
  • the hybrid system 2 includes both an engine (ENG) 11 and a motor generator 21.
  • a motor generator 21 is connected to a CVT (continuously variable transmission mechanism or fixed transmission ratio power transmission device (pulley or gear)) 16 provided directly connected to a crankshaft 15 of the engine 11.
  • CVT continuously variable transmission mechanism or fixed transmission ratio power transmission device
  • an endless belt 16c is wound around a first pulley 16a on the crankshaft 15 side and a second pulley 16b on the motor generator 21 side, and the crankshaft 15 and the motor generator are passed through these.
  • the motor generator 21 which is a part of the electric power system 20 generates power by receiving the driving force of the engine 11 as a generator, or generates regenerative power by generating regenerative power such as braking force of the vehicle 1. At the same time, it is driven as a motor and the driving force is transmitted to the crankshaft 15 of the engine 11 to assist the driving force (output: torque) of the engine 11.
  • the electric power generated by the motor generator 21 is converted by the inverter (INV) 23 via the power line (bus bar) 22 and charged to the battery 25 via the power line 24. Further, when the motor generator 21 is driven, the power charged in the battery 25 is converted by the inverter 23 and supplied to the motor generator 21.
  • the inverter 23 is provided between the motor generator 21 and the battery 25 that stores the electric power generated by the motor generator 21, and the electric power is moved via the inverter 23.
  • a hybrid vehicle 1 is configured by mounting the above-described hybrid system 2.
  • the power of the engine 11 is a power transmission system.
  • 30 is transmitted to the wheels 35 through the transmission 31, the propulsion shaft 32, the differential device 33, and the drive shaft 34, and the vehicle 1 travels.
  • the power transmission path from the engine 11 to the wheel 35 may be different.
  • the power charged in the battery 25 is supplied to the motor generator 21 via the inverter 23, and the power of the motor generator 21 generated by this power is cranked via the CVT 16. It is transmitted to the shaft 15, transmits the power transmission path of the engine 11, and is transmitted to the wheels 35. Thereby, the motive power of the motor generator 21 is transmitted to the wheels 35 together with the motive power of the engine 11, and the vehicle 1 travels. During regeneration, the regenerative power of the wheels 35 or the regenerative power of the engine 11 is transmitted to the motor generator 21 through the reverse path, and the motor generator 21 can generate power.
  • a hybrid system control device 41 is provided, and the operating state such as the rotational speed Ne and the load Q of the engine 11, the operating state such as the rotational speed Na of the motor generator 21, and the state of charge (SOC) of the battery 25. While monitoring, the CVT 16, the motor generator 21, the inverter 23 and the like are controlled.
  • the hybrid system control device 41 is usually configured to be incorporated in an overall control device 40 that controls the engine 11 and the vehicle 1.
  • the battery 25 is formed of a 48V battery having a voltage of 60V or less.
  • the power line 24 connecting the inverter 23 and the battery 25 is composed of a total of four power lines 24 (24 a and 24 b collectively 24), two plus power lines 24 a and two minus power lines 24 b. And).
  • the power line 24 for plus 24a and the power line 24b for minus are composed of three power lines 24 in total.
  • the hybrid system control device 41 which is a control device of the hybrid system, is connected to the wire diagnosed as being disconnected when a part of the power line 24 connecting the inverter 23 and the battery 25 is disconnected. By stopping energization and limiting the output according to the remaining number, even if a part of the number of power lines 24 is cut off, the remaining power line 24 moves power between the battery 25 and the inverter 23 without any trouble. It is possible to move to the repair shop smoothly.
  • This electric power supply method is an electric power supply method of the hybrid system 2 including both the engine 11 and the motor generator 31, and the electric power generated by the motor generator 31 is passed through the inverter 23 and 2 of the plus two power lines 24 a.
  • a battery 25 having a voltage of 60 V or less with a total of four power lines 24, ie, two power lines 24b and a minus power line 24b, or a total of six power lines 24, three power lines 24a and three power lines 24b. And supplying electricity to the battery.
  • the voltage of the battery 25 is set to 60 V or less, so that even if the power from the battery 25 flows to one person in an emergency. Since there is little danger, it is not necessary to provide a mechanism for cutting off the power from the battery 25, and the power storage system can be made simple.
  • the current increases by the amount that the voltage has decreased, so that the current value increases and the influence of the resistance of the power line 24 on the output, that is, the power due to the resistance of the power line 24
  • the resistance of the power line 24 as a whole can be reduced by using four or six power lines 24. Thereby, the problem of power loss due to an increase in current can be solved, and a battery having a voltage of 60 V or less can be used as the battery 25 of the hybrid system 2.
  • Hybrid vehicle Hybrid vehicle: HEV
  • Hybrid system 11 engine (internal combustion engine) 15 Crankshaft 16 CVT (continuously variable transmission mechanism or fixed transmission ratio power transmission device (pulley or gear))
  • Electric power system 21 Motor generator (M / G) 22 Power line (bus bar) 23 Inverter 24 Power line 24a Positive power line 24b Negative power line 25 Battery 30 Power transmission system 40

Abstract

An inverter (23) is disposed between an electric generator (31) and a battery (25) for storing electric power generated by the electric generator (31) so as to transfer the electric power via the inverter (23), wherein the battery (25) comprises a battery with voltage of not higher than 60 V, and further an electric power line (24) connecting the inverter (23) and the battery (25) comprises a total of four electric power lines (24) including two positive electric power lines (24a) and two negative electric power lines (24b), or a total of six electric power lines (24) including three positive electric power lines (24a) and three negative electric power lines (24b). In this way, the need for an emergency battery electric power shutdown system is eliminated, whereby a simple electricity storage system configuration can be obtained. In addition, redundancy is provided for power line disconnection failure, and wiring in a narrow space is facilitated, whereby increased freedom of layout is ensured. A hybrid system with an inexpensive and highly safe electricity storage system, a hybrid vehicle, and an electric power supply method for hybrid system are provided.

Description

ハイブリッドシステム、ハイブリッド車両、及びハイブリッドシステムの電力供給方法HYBRID SYSTEM, HYBRID VEHICLE, AND HYBRID SYSTEM POWER SUPPLY METHOD
　本発明は、内燃機関と電動発電機の両方を搭載し、電動発電機で発電した電力をバッテリに蓄電するハイブリッドシステム、ハイブリッド車両、及びハイブリッドシステムの電力供給方法に関する。 The present invention relates to a hybrid system, a hybrid vehicle, and a power supply method for a hybrid system in which both an internal combustion engine and a motor generator are mounted, and electric power generated by the motor generator is stored in a battery.
　内燃機関と電動発電機の両方を搭載し、電動発電機で発電した電力をバッテリに蓄電するハイブリッドシステムを搭載したハイブリッド車両は、エンジンによって駆動される電動発電機で発電した電力や、車両の制動時に電動発電機で発電した回生電力をバッテリに蓄電し、このバッテリの電力を用いて車両走行したり、エンジン出力へのアシスト出力をしたりしている。 A hybrid vehicle equipped with both an internal combustion engine and a motor generator, and a hybrid system that stores the electric power generated by the motor generator in a battery, is the power generated by the motor generator driven by the engine, and braking of the vehicle. Sometimes, regenerative power generated by a motor generator is stored in a battery, and the vehicle is driven using the power of the battery or assist output to engine output.
　エンジンや電動発電機の出力が比較的小さい乗用車では、ハイブリッドシステムで使用されるバッテリは、比較的高い電圧、例えば２００Ｖ等に設定される。この高電圧を出力するバッテリは、感電に対する安全性の面から、バッテリの電力を外部から遮断できるようにする必要がある。 In a passenger car with a relatively small engine or motor generator output, the battery used in the hybrid system is set to a relatively high voltage, for example, 200V. The battery that outputs this high voltage needs to be able to cut off the power of the battery from the outside in terms of safety against electric shock.
　これに関連して、例えば、日本出願の特開２００６－３４５６０６号公報に記載されているように、車両用電源システムにおいて、ニッケル水素、リチウムイオン等の高電圧を出力する二次電池およびキャパシタを外部から遮断するために、二次電池の正極とコンバータとの間、二次電池の負極とコンバータとの間、キャパシタの正極とインバータとの間、および、キャパシタの負極とインバータとの間のそれぞれに、少なくとも１つのシステムメインリレーを備える構成が開示されている。 In this connection, for example, as described in Japanese Patent Application Laid-Open No. 2006-345606, a secondary battery and a capacitor that output a high voltage such as nickel hydride and lithium ion are used in a vehicle power supply system. To cut off from the outside, between the positive electrode of the secondary battery and the converter, between the negative electrode of the secondary battery and the converter, between the positive electrode of the capacitor and the inverter, and between the negative electrode of the capacitor and the inverter, respectively. Discloses a configuration including at least one system main relay.
　また、例えば、日本出願の特開２０１１－２２３６５５号公報に記載されているように、車両の電源装置の小型化および低コスト化を可能とするために、電源システムと、駆動力発生部と、制御装置とを備えた車両で、電源システムが、第１蓄電装置と、第１コンバータと、この第１コンバータと第１蓄電装置との間に設けられた第１切替装置と、第２蓄電装置と、第２コンバータと、第２蓄電装置の負極と第２コンバータとの間に設けられた第２切替装置とを含み、第２蓄電装置は、互いに直列に接続された電気二重層キャパシタとヒューズとで構成されて、制御装置が、車両の衝突が生じた場合、ヒューズにその許容電流値を超える大電流を流してヒューズを溶断させるように、第２コンバータを制御する車両の電源装置が提案されている。 Further, for example, as described in Japanese Patent Application Laid-Open No. 2011-223655, a power supply system, a driving force generation unit, and a vehicle power supply device can be reduced in size and cost. In a vehicle including a control device, a power supply system includes a first power storage device, a first converter, a first switching device provided between the first converter and the first power storage device, and a second power storage device. And a second converter, and a second switching device provided between the negative electrode of the second power storage device and the second converter, wherein the second power storage device includes an electric double layer capacitor and a fuse connected in series with each other A vehicle power supply device for controlling the second converter is proposed in which the control device causes the fuse to blow by flowing a large current exceeding the allowable current value to the fuse when a vehicle collision occurs. Been That.
　このように、乗用車に搭載されるハイブリッドシステムで使用されるバッテリは、２００Ｖを超える高い電圧仕様であり、ニッケル水素やリチウムイオン等の二次電池で構成されることが多いので、非常時に、安全のために、電源を遮断することが規則で決められており、上記のような様々な工夫がなされている。そのため、蓄電システムが複雑になるという問題がある。 As described above, the battery used in the hybrid system mounted on the passenger car has a high voltage specification exceeding 200 V, and is often composed of a secondary battery such as nickel metal hydride or lithium ion. For this reason, it is determined by a rule that the power supply is cut off, and various measures as described above are made. Therefore, there is a problem that the power storage system becomes complicated.
　また、これらの高い電圧までバッテリ電圧を上げる為には多くの単電池（セル）を直列で接続する必要があり、更にはセル数増加に伴う重量増加を抑制する為に、鉛二次電池ではなく高性能であるが高価なニッケル水素やリチウムイオン等の二次電池を使用するので、コスト高になるという問題がある。 In order to raise the battery voltage to these high voltages, it is necessary to connect many single cells (cells) in series. Furthermore, in order to suppress an increase in weight due to an increase in the number of cells, However, there is a problem that the cost is high because a secondary battery such as nickel hydride or lithium ion, which is high performance but expensive, is used.
日本出願の特開２００６－３４５６０６号公報Japanese Patent Application Publication No. 2006-345606 日本出願の特開２０１１－２２３６５５号公報Japanese Patent Application No. 2011-223655 filed in Japan
　本発明は、上記のことを鑑みてなされたものであり、その目的は、非常時のバッテリ電力の遮断システムを不要にして、蓄電システムをシンプルな構成にすることができ、しかも、予期せぬ電線の切断故障に対しても冗長性を有すると共に、狭いところでも配線の自由度を確保できる、安価で安全性の高い蓄電システムを備えたハイブリッドシステム、ハイブリッド車両、及びハイブリッドシステムの電力供給方法を提供することにある。 The present invention has been made in view of the above, and an object of the present invention is to eliminate the need for an emergency battery power shut-off system, to simplify the power storage system, and to be unexpected. A hybrid system, a hybrid vehicle, and a power supply method for a hybrid system having an inexpensive and highly safe power storage system that has redundancy even in the event of a disconnection of an electric wire and can secure a degree of freedom in wiring even in a narrow space. It is to provide.
　上記の目的を達成するための本発明のハイブリッドシステムは、内燃機関と電動発電機の両方を備えたハイブリッドシステムにおいて、前記電動発電機と前記電動発電機で発生した電力を蓄電するバッテリとの間にインバータを設けて、該インバータ経由で電力を移動するように構成すると共に、前記バッテリを電圧が６０Ｖ以下のバッテリで形成し、更に、前記インバータと前記バッテリとの間を接続する電力線を、プラス用電力線の２本とマイナス用電力線の２本の計４本の電力線で、若しくは、プラス用電力線の３本とマイナス用電力線の３本の計６本の電力線で構成される。 In order to achieve the above object, a hybrid system of the present invention is a hybrid system including both an internal combustion engine and a motor generator, between the motor generator and a battery that stores electric power generated by the motor generator. In addition, an inverter is provided to move power through the inverter, the battery is formed of a battery having a voltage of 60 V or less, and a power line connecting the inverter and the battery is added It is composed of a total of four power lines, ie, two power lines and two minus power lines, or a total of six power lines, three plus power lines and three minus power lines.
　この構成によれば、バッテリの電圧を６０Ｖ以下にしたので、緊急時においてバッテリからの電力が万一人体に流れても危険性が少ないので、バッテリからの電力を遮断する機構を備える必要が無くなり、蓄電システムをシンプルな構成にすることができる。 According to this configuration, since the voltage of the battery is set to 60 V or less, there is little danger even if the power from the battery flows to the human body in an emergency, so there is no need to provide a mechanism for cutting off the power from the battery. The power storage system can be made simple.
　また、バッテリの電圧を６０Ｖ以下、例えば４８Ｖにすると、従来の２００Ｖを超えるようなシステムと同等の電動発電機の出力を維持又は増加させた場合、電圧が下がった分だけ、電流値が高くなり、電力線の抵抗が出力に与える影響、即ち、電力線の抵抗による電力ロスの問題が生じるが、電力線を４本若しくは６本にすることで、電力線の全体としての抵抗を低減できる。これにより、電流の増加による電力ロスの問題を解決でき、６０Ｖ以下の電圧のバッテリをハイブリッドシステムのバッテリにより効率良く（又はより高出力で）使用できるようにすることができる。 In addition, if the battery voltage is set to 60V or less, for example 48V, when the output of the motor generator equivalent to the conventional system exceeding 200V is maintained or increased, the current value increases by the amount of the voltage decrease. Although the effect of the power line resistance on the output, that is, the problem of power loss due to the power line resistance, the resistance of the power line as a whole can be reduced by using four or six power lines. Thereby, the problem of power loss due to an increase in current can be solved, and a battery having a voltage of 60 V or less can be used more efficiently (or at a higher output) by the battery of the hybrid system.
　また、電力線を４本若しくは６本にすることで、予期せぬ電力線の切断故障に対しても冗長性を有することになる。その上、１本当たりの電力線の必要容量が小さくなり、１本の電力線の太さを細くできるので、曲げることが出来る曲率半径が小さくなり、狭い所でも配線がし易くなりレイアウトの自由度を確保できるようになる。 Also, by using four or six power lines, redundancy is provided for unexpected power line disconnection failures. In addition, the required capacity of each power line is reduced, and the thickness of one power line can be reduced, so that the radius of curvature that can be bent is reduced, and wiring can be easily performed even in a narrow space, thereby increasing the flexibility of layout. It can be secured.
　上記のハイブリッドシステムにおいて、前記ハイブリッドシステムの制御装置が、前記インバータと前記バッテリとの間を接続する前記電力線の一部の本数が切断された場合には、故障による機能制限（いわゆるリンプホーム機能）として、切断と診断された前記電力線への通電を停止し、残された本数に応じた出力に制限するように構成されると、電力線の一部の本数が切断されても、残りの電力線でバッテリとインバータの間の電力を支障なく移動でき、修理工場への移動を円滑に行うことができる。 In the hybrid system described above, when a part of the power line connecting the inverter and the battery is disconnected, the control device of the hybrid system limits the function due to a failure (so-called limp home function) As described above, when it is configured to stop the energization of the power line diagnosed as disconnected and limit the output according to the number of remaining power lines, even if some of the power lines are disconnected, the remaining power lines The power between the battery and the inverter can be moved without hindrance, and the transfer to the repair shop can be performed smoothly.
　上記の目的を達成するための本発明のハイブリッド車両は上記のハイブリッドシステムを搭載したことを特徴とするハイブリッド車両である。このハイブリッド車両によれば、上記のハイブリッドシステムと同様の効果を奏することができる。 A hybrid vehicle of the present invention for achieving the above object is a hybrid vehicle equipped with the above hybrid system. According to this hybrid vehicle, the same effects as the above hybrid system can be achieved.
　上記の目的を達成するための本発明のハイブリッドシステムの電力供給方法は、内燃機関と電動発電機の両方を備えたハイブリッドシステムの電力供給方法において、前記電動発電機で発生した電力をインバータを経由して、プラス用２電力線の２本とマイナス用電力線の２本の計４本の電力線、若しくは、プラス用電力線の３本とマイナス用電力線の３本の計６本の電力線で、電圧が６０Ｖ以下の前記バッテリに供給して蓄電することを特徴とする方法である。この方法によれば、上記のハイブリッドシステムと同様の効果を奏することができる。 In order to achieve the above object, a power supply method for a hybrid system according to the present invention is a power supply method for a hybrid system including both an internal combustion engine and a motor generator. The power generated by the motor generator is passed through an inverter. The voltage is 60V with 2 power lines for plus 2 and 2 power lines for minus, or 4 power lines in total, or 3 power lines for plus and 3 power lines for minus. The method is characterized in that the following battery is supplied and stored. According to this method, the same effect as the above hybrid system can be obtained.
　本発明のハイブリッドシステム、ハイブリッド車両、及びハイブリッドシステムの電力供給方法によれば、６０Ｖ以下の電圧のバッテリを使用するので、緊急時においてバッテリからの電力が万一人体に流れても危険性が少ないので、バッテリからの電力を遮断する機構を備える必要が無くなり、蓄電システムをシンプルな構成にすることができる。 According to the hybrid system, hybrid vehicle, and hybrid system power supply method of the present invention, a battery having a voltage of 60 V or less is used. Therefore, there is little danger even if the power from the battery flows to one person in an emergency. Therefore, it is not necessary to provide a mechanism for cutting off the electric power from the battery, and the power storage system can be simplified.
　しかも、４本若しくは６本の電力線でインバータとバッテリの間を接続するように構成したので、予期せぬ電線の切断故障に対しても冗長性を有することになり、また、１本当たりの電力線の必要容量が小さくなり、１本の電力線の太さを細くできるので、曲げることが出来る曲率半径が小さくなるので、狭い所でも配線がし易くなりレイアウトの自由度を確保でき、安価で安全性の高い蓄電システムとすることができる。 In addition, since the inverter and the battery are connected by four or six power lines, redundancy is provided for unexpected electric wire disconnection failure, and the power line per line Since the required capacity of the power supply is reduced and the thickness of one power line can be reduced, the radius of curvature that can be bent is reduced, so that wiring can be facilitated even in narrow spaces, and the flexibility of layout can be secured. A high power storage system can be obtained.
図１は、本発明の実施の形態のハイブリッドシステム及びハイブリッド車両の構成を示す図である。FIG. 1 is a diagram showing a configuration of a hybrid system and a hybrid vehicle according to an embodiment of the present invention.
　以下、本発明に係る実施の形態のハイブリッドシステム、ハイブリッド車両、及びハイブリッドシステムの電力供給方法について説明する。 Hereinafter, a hybrid system, a hybrid vehicle, and a power supply method of the hybrid system according to embodiments of the present invention will be described.
　この実施の形態のハイブリッドシステムは、エンジン（内燃機関）と電動発電機（Ｍ/Ｇ）を有するハイブリッドシステムである。なお、ここでは、このハイブリッドシステムはハイブリッド車両（ＨＥＶ：以下車両とする）に搭載されるものとして説明するが、ハイブリッドシステム自体は、必ずしも、車両に搭載されるものに限定されない。 The hybrid system of this embodiment is a hybrid system having an engine (internal combustion engine) and a motor generator (M / G). Here, the hybrid system is described as being mounted on a hybrid vehicle (HEV: hereinafter referred to as a vehicle), but the hybrid system itself is not necessarily limited to that mounted on the vehicle.
　図１に例示するように、このハイブリッドシステム２は、エンジン（ＥＮＧ）１１と電動発電機２１の両方を備えて構成される。このハイブリッドシステム２は、エンジン１１のクランク軸１５に直結して設けたＣＶＴ（無段変速機構又は固定変速比動力伝達装置（滑車又はギヤ））１６に電動発電機２１を連結している。このＣＶＴ１６は、クランク軸１５側の第１プーリー１６ａと電動発電機２１側の第２プーリー１６ｂとの間に、無端状のベルト１６ｃを掛け回しており、これらを介してクランク軸１５と電動発電機２１との間の動力伝達を行っているが、必ずしも無断変速機構を設ける必要はなく、滑車又はギヤによる固定変速比での動力伝達でも良い。 1, the hybrid system 2 includes both an engine (ENG) 11 and a motor generator 21. In this hybrid system 2, a motor generator 21 is connected to a CVT (continuously variable transmission mechanism or fixed transmission ratio power transmission device (pulley or gear)) 16 provided directly connected to a crankshaft 15 of the engine 11. In the CVT 16, an endless belt 16c is wound around a first pulley 16a on the crankshaft 15 side and a second pulley 16b on the motor generator 21 side, and the crankshaft 15 and the motor generator are passed through these. Although power transmission with the machine 21 is performed, it is not always necessary to provide a transmission mechanism without permission, and power transmission at a fixed gear ratio by a pulley or a gear may be used.
　この電力システム２０の一部である電動発電機２１は、発電機として、エンジン１１の駆動力を受けて発電をしたり、又は、車両１のブレーキ力等の回生力発生による回生発電をしたりすると共に、モータとして駆動して、その駆動力をエンジン１１のクランク軸１５に伝達して、エンジン１１の駆動力（出力：トルク）をアシストしたりする。 The motor generator 21 which is a part of the electric power system 20 generates power by receiving the driving force of the engine 11 as a generator, or generates regenerative power by generating regenerative power such as braking force of the vehicle 1. At the same time, it is driven as a motor and the driving force is transmitted to the crankshaft 15 of the engine 11 to assist the driving force (output: torque) of the engine 11.
　この電動発電機２１で発電して得た電力は、電力線（バスバー）２２を経由してインバータ（ＩＮＶ）２３で変換して、電力線２４を経由してバッテリ２５に充電される。また、電動発電機２１を駆動するときは、バッテリ２５に充電された電力をインバータ２３で変換して電動発電機２１に供給する。 The electric power generated by the motor generator 21 is converted by the inverter (INV) 23 via the power line (bus bar) 22 and charged to the battery 25 via the power line 24. Further, when the motor generator 21 is driven, the power charged in the battery 25 is converted by the inverter 23 and supplied to the motor generator 21.
　このように、電動発電機２１と、電動発電機２１で発生した電力を蓄電するバッテリ２５との間にインバータ２３を設けて、このインバータ２３経由で電力を移動するように構成される。 Thus, the inverter 23 is provided between the motor generator 21 and the battery 25 that stores the electric power generated by the motor generator 21, and the electric power is moved via the inverter 23.
　また、本発明に係る実施の形態のハイブリッド車両１は、図１に示すように、上記のハイブリッドシステム２を搭載して構成され、このハイブリッド車両１においては、エンジン１１の動力は、動力伝達システム３０の変速機３１、推進軸３２、差動装置３３、駆動軸３４を介して車輪３５に伝達され、車両１が走行する。なお、エンジン１１の搭載方法によっては、エンジン１１から車輪３５の動力の伝達経路は異なってもよい。 Further, as shown in FIG. 1, a hybrid vehicle 1 according to an embodiment of the present invention is configured by mounting the above-described hybrid system 2. In the hybrid vehicle 1, the power of the engine 11 is a power transmission system. 30 is transmitted to the wheels 35 through the transmission 31, the propulsion shaft 32, the differential device 33, and the drive shaft 34, and the vehicle 1 travels. Depending on how the engine 11 is mounted, the power transmission path from the engine 11 to the wheel 35 may be different.
　一方、電動発電機２１の動力に関しては、バッテリ２５に充電された電力がインバータ２３を介して電動発電機２１に供給され、この電力により発生した電動発電機２１の動力は、ＣＶＴ１６を介してクランク軸１５に伝達されて、エンジン１１の動力伝達経路を伝達して、車輪３５に伝達される。これにより、電動発電機２１の動力がエンジン１１の動力と共に車輪３５に伝達され、車両１が走行する。なお、回生時には、逆の経路で、車輪３５の回生力、又はエンジン１１の回生力が電動発電機２１に伝達されて、電動発電機２１で発電が可能となる。 On the other hand, regarding the power of the motor generator 21, the power charged in the battery 25 is supplied to the motor generator 21 via the inverter 23, and the power of the motor generator 21 generated by this power is cranked via the CVT 16. It is transmitted to the shaft 15, transmits the power transmission path of the engine 11, and is transmitted to the wheels 35. Thereby, the motive power of the motor generator 21 is transmitted to the wheels 35 together with the motive power of the engine 11, and the vehicle 1 travels. During regeneration, the regenerative power of the wheels 35 or the regenerative power of the engine 11 is transmitted to the motor generator 21 through the reverse path, and the motor generator 21 can generate power.
　また、ハイブリッドシステム用制御装置４１が設けられ、エンジン１１の回転数Ｎｅや負荷Ｑ等の運転状態や電動発電機２１の回転数Ｎａ等の運転状態やバッテリ２５の充電量（ＳＯＣ）の状態をモニターしながら、ＣＶＴ１６、電動発電機２１、インバータ２３等を制御する。このハイブリッドシステム用制御装置４１は、通常は、エンジン１１や車両１を制御する全体制御装置４０に組み込まれて構成される。 Also, a hybrid system control device 41 is provided, and the operating state such as the rotational speed Ne and the load Q of the engine 11, the operating state such as the rotational speed Na of the motor generator 21, and the state of charge (SOC) of the battery 25. While monitoring, the CVT 16, the motor generator 21, the inverter 23 and the like are controlled. The hybrid system control device 41 is usually configured to be incorporated in an overall control device 40 that controls the engine 11 and the vehicle 1.
　本発明においては、このバッテリ２５を電圧が６０Ｖ以下の４８Ｖのバッテリで形成する。また、更に、インバータ２３とバッテリ２５との間を接続する電力線２４を、プラス用電力線２４ａを２本とマイナス用電力線２４ｂを２本の計４本の電力線２４（２４ａと２４ｂを総称して２４とする）で構成する。あるいは、図示しないが、プラス用電力線２４ａを３本とマイナス用電力線２４ｂを３本の計６本の電力線２４で構成する。 In the present invention, the battery 25 is formed of a 48V battery having a voltage of 60V or less. Further, the power line 24 connecting the inverter 23 and the battery 25 is composed of a total of four power lines 24 (24 a and 24 b collectively 24), two plus power lines 24 a and two minus power lines 24 b. And). Alternatively, although not shown in the figure, the power line 24 for plus 24a and the power line 24b for minus are composed of three power lines 24 in total.
　そして、ハイブリッドシステムの制御装置であるハイブリッドシステム用制御装置４１は、インバータ２３とバッテリ２５との間を接続する電力線２４の一部の本数切断された場合には、切断と診断された電線への通電を停止し、残された本数に応じた出力に制限することで、電力線２４の一部の本数が切断されても、残りの電力線２４でバッテリ２５とインバータ２３の間の電力を支障なく移動でき、修理工場への移動を円滑に行うことができる。 The hybrid system control device 41, which is a control device of the hybrid system, is connected to the wire diagnosed as being disconnected when a part of the power line 24 connecting the inverter 23 and the battery 25 is disconnected. By stopping energization and limiting the output according to the remaining number, even if a part of the number of power lines 24 is cut off, the remaining power line 24 moves power between the battery 25 and the inverter 23 without any trouble. It is possible to move to the repair shop smoothly.
　次に、本発明に係る実施の形態のハイブリッドシステムの電力供給方法について説明する。この電力供給方法は、エンジン１１と電動発電機３１の両方を備えたハイブリッドシステム２の電力供給方法であり、電動発電機３１で発生した電力をインバータ２３を経由し、プラス用２電力線２４ａの２本とマイナス用電力線２４ｂの２本の計４本の電力線２４、若しくは、プラス用電力線２４ａの３本とマイナス用電力線２４ｂの３本の計６本の電力線２４で、電圧が６０Ｖ以下のバッテリ２５に供給して蓄電する方法である。 Next, the power supply method of the hybrid system according to the embodiment of the present invention will be described. This electric power supply method is an electric power supply method of the hybrid system 2 including both the engine 11 and the motor generator 31, and the electric power generated by the motor generator 31 is passed through the inverter 23 and 2 of the plus two power lines 24 a. A battery 25 having a voltage of 60 V or less with a total of four power lines 24, ie, two power lines 24b and a minus power line 24b, or a total of six power lines 24, three power lines 24a and three power lines 24b. And supplying electricity to the battery.
　上記の構成のハイブリッドシステム２、ハイブリッド車両１、及びハイブリッドシステムの電力供給方法によれば、バッテリ２５の電圧を６０Ｖ以下にしたので、緊急時においてバッテリ２５からの電力が万一人体に流れても危険性が少ないので、バッテリ２５からの電力を遮断する機構を備える必要が無くなり、蓄電システムをシンプルな構成にすることができる。 According to the hybrid system 2, the hybrid vehicle 1, and the hybrid system power supply method configured as described above, the voltage of the battery 25 is set to 60 V or less, so that even if the power from the battery 25 flows to one person in an emergency. Since there is little danger, it is not necessary to provide a mechanism for cutting off the power from the battery 25, and the power storage system can be made simple.
　また、バッテリ２５の電圧を６０Ｖ以下、例えば４８Ｖにすると電圧が下がった分だけ、電流が増すので、電流値が高くなり、電力線２４の抵抗が出力に与える影響、即ち、電力線２４の抵抗による電力ロスの問題が生じるが、電力線２４を４本若しくは６本にすることで、電力線２４の全体としての抵抗を低減できる。これにより、電流の増加による電力ロスの問題を解決でき、６０Ｖ以下の電圧のバッテリをハイブリッドシステム２のバッテリ２５に使用できるようにすることができる。 Further, when the voltage of the battery 25 is 60 V or less, for example, 48 V, the current increases by the amount that the voltage has decreased, so that the current value increases and the influence of the resistance of the power line 24 on the output, that is, the power due to the resistance of the power line 24 Although a problem of loss occurs, the resistance of the power line 24 as a whole can be reduced by using four or six power lines 24. Thereby, the problem of power loss due to an increase in current can be solved, and a battery having a voltage of 60 V or less can be used as the battery 25 of the hybrid system 2.
　また、電力線２４を４本若しくは６本にすることで、予期せぬ電力線２４の切断故障に対しても冗長性を有することになる。その上、１本当たりの電力線２４の必要容量が小さくなり、１本の電力線２４の太さを細くできるので、曲げることが出来る曲率半径が小さくなり、狭い所でも配線がし易くなりレイアウトの自由度を確保できるようになる。 In addition, by using four or six power lines 24, redundancy is provided for unexpected power line 24 disconnection failures. In addition, since the required capacity of each power line 24 is reduced and the thickness of one power line 24 can be reduced, the radius of curvature that can be bent is reduced, and wiring can be easily performed even in a narrow space. The degree can be secured.
１　車両（ハイブリッド車両：ＨＥＶ）
２　ハイブリッドシステム
１１　エンジン（内燃機関）
１５　クランク軸
１６　ＣＶＴ（無段変速機構又は固定変速比動力伝達装置（滑車又はギヤ））
２０　電力システム
２１　電動発電機（Ｍ/Ｇ）
２２　電力線（バスバー）
２３　インバータ
２４　電力線
２４ａ　プラス用電力線
２４ｂ　マイナス用電力線
２５　バッテリ
３０　動力伝達システム
４０　全体制御装置
４１　ハイブリッドシステム用制御装置 1 Vehicle (Hybrid vehicle: HEV)
2 Hybrid system 11 engine (internal combustion engine)
15 Crankshaft 16 CVT (continuously variable transmission mechanism or fixed transmission ratio power transmission device (pulley or gear))
20 Electric power system 21 Motor generator (M / G)
22 Power line (bus bar)
23 Inverter 24 Power line 24a Positive power line 24b Negative power line 25 Battery 30 Power transmission system 40 Overall controller 41 Hybrid system controller

Claims (4)

  1. 　内燃機関と電動発電機の両方を備えたハイブリッドシステムにおいて、前記電動発電機と前記電動発電機で発生した電力を蓄電するバッテリとの間にインバータを設けて、該インバータ経由で電力を移動するように構成すると共に、前記バッテリを電圧が６０Ｖ以下のバッテリで形成し、更に、前記インバータと前記バッテリとの間を接続する電力線を、プラス用電力線の２本とマイナス用電力線の２本の計４本の電力線で、若しくは、プラス用電力線の３本とマイナス用電力線の３本の計６本の電力線で構成したことを特徴とするハイブリッドシステム。 In a hybrid system including both an internal combustion engine and a motor generator, an inverter is provided between the motor generator and a battery that stores electric power generated by the motor generator, and the electric power is moved via the inverter. In addition, the battery is formed of a battery having a voltage of 60 V or less, and furthermore, there are four power lines connecting the inverter and the battery, that is, two plus power lines and two minus power lines. A hybrid system comprising a total of six power lines, one power line or three plus power lines and three minus power lines.
  2. 　前記ハイブリッドシステムの制御装置が、前記インバータと前記バッテリとの間を接続する前記電力線の一部の本数が切断された場合には、故障による機能制限として、切断と診断された前記電力線への通電を停止し、残された本数に応じた出力に制限する請求項１に記載のハイブリッドシステム。 When a part of the power lines connecting the inverter and the battery is disconnected, the control device of the hybrid system energizes the power lines diagnosed as disconnected as a function limitation due to a failure. The hybrid system according to claim 1, wherein the output is stopped and limited to an output corresponding to the remaining number.
  3. 　請求項１または２に記載のハイブリッドシステムを搭載したことを特徴とするハイブリッド車両。 A hybrid vehicle equipped with the hybrid system according to claim 1 or 2.
  4. 　内燃機関と電動発電機の両方を備えたハイブリッドシステムの電力供給方法において、前記電動発電機で発生した電力をインバータを経由して、プラス用電力線の２本とマイナス用電力線の２本の計４本の電力線、若しくは、プラス用電力線の３本とマイナス用電力線の３本の計６本の電力線で、電圧が６０Ｖ以下の前記バッテリに供給して蓄電することを特徴とするハイブリッドシステムの電力供給方法。 In the power supply method of the hybrid system including both the internal combustion engine and the motor generator, the power generated by the motor generator is passed through an inverter, and a total of four plus power lines and two minus power lines are added. The power supply of the hybrid system, characterized in that the power is supplied to and stored in the battery having a voltage of 60 V or less by a total of six power lines, ie, three power lines, or three plus power lines and three minus power lines. Method.
PCT/JP2015/081337 2014-11-17 2015-11-06 Hybrid system, hybrid vehicle, and electric power supply method for hybrid system WO2016080216A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-232590 2014-11-17
JP2014232590A JP2016094148A (en) 2014-11-17 2014-11-17 Hybrid system, hybrid vehicle, and power supply method for the hybrid system

Publications (1)

Publication Number Publication Date
WO2016080216A1 true WO2016080216A1 (en) 2016-05-26

Family

ID=56013762

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/081337 WO2016080216A1 (en) 2014-11-17 2015-11-06 Hybrid system, hybrid vehicle, and electric power supply method for hybrid system

Country Status (2)

Country Link
JP (1) JP2016094148A (en)
WO (1) WO2016080216A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106114232A (en) * 2016-09-14 2016-11-16 成都雅骏新能源汽车科技股份有限公司 A kind of automobile storage battery preventing electric loss intelligence system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001238307A (en) * 2000-02-28 2001-08-31 Hitachi Ltd Hybrid vehicle
JP2002271907A (en) * 2001-03-12 2002-09-20 Mitsubishi Motors Corp Controller for hybrid electric vehicle
JP2002291149A (en) * 2001-03-29 2002-10-04 Nissan Motor Co Ltd Motor controller
JP2007266082A (en) * 2006-03-27 2007-10-11 Yazaki Corp Power distribution structure
JP2011192493A (en) * 2010-03-15 2011-09-29 Nec Personal Products Co Ltd Power cord with safety device
JP2013138537A (en) * 2011-12-28 2013-07-11 Denso Corp Motor control apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001238307A (en) * 2000-02-28 2001-08-31 Hitachi Ltd Hybrid vehicle
JP2002271907A (en) * 2001-03-12 2002-09-20 Mitsubishi Motors Corp Controller for hybrid electric vehicle
JP2002291149A (en) * 2001-03-29 2002-10-04 Nissan Motor Co Ltd Motor controller
JP2007266082A (en) * 2006-03-27 2007-10-11 Yazaki Corp Power distribution structure
JP2011192493A (en) * 2010-03-15 2011-09-29 Nec Personal Products Co Ltd Power cord with safety device
JP2013138537A (en) * 2011-12-28 2013-07-11 Denso Corp Motor control apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106114232A (en) * 2016-09-14 2016-11-16 成都雅骏新能源汽车科技股份有限公司 A kind of automobile storage battery preventing electric loss intelligence system
CN106114232B (en) * 2016-09-14 2018-08-21 成都雅骏汽车制造有限公司 A kind of automobile storage battery preventing electric loss intelligence system

Also Published As

Publication number Publication date
JP2016094148A (en) 2016-05-26

Similar Documents

Publication Publication Date Title
JP5895029B2 (en) Power storage device and vehicle
JP6149872B2 (en) Power storage system
JP5760144B2 (en) Storage battery control device and power storage device
US9106162B2 (en) Control strategy for an electric machine in a vehicle
JP4450001B2 (en) Electric vehicle
KR101904492B1 (en) Electrical architecture of a hybrid vehicle, hybrid vehicle and control method
US9130487B2 (en) Control strategy for an electric machine in a vehicle
JP2001320807A (en) Vehicle, power supply system controlling device, method of controlling power supply system and vehicle controlling method on starting
JP5010288B2 (en) Control device for hybrid vehicle
JP2010273417A (en) Electric vehicle
JP2012037359A (en) Control apparatus for power unit
US10199906B2 (en) Lightweight rotor endplate for electric machine
US10099680B2 (en) Hybrid vehicle
JP2012131247A (en) Power supply unit for hybrid electric vehicle
WO2016080216A1 (en) Hybrid system, hybrid vehicle, and electric power supply method for hybrid system
JP2008189236A (en) Control device of hybrid vehicle
JP6365072B2 (en) Hybrid vehicle system
JP2015104222A (en) Power storage system
JP5849888B2 (en) Hybrid vehicle
JP2016041567A (en) Brake system of hybrid vehicle
JP2020083142A (en) Hybrid vehicle
RU2802566C1 (en) Electric vehicle power supply system
JP2019073204A (en) Hybrid vehicle
JP7222737B2 (en) vehicle
WO2023080058A1 (en) Electric vehicle control device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15860701

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15860701

Country of ref document: EP

Kind code of ref document: A1