WO2005042289A2 - Electric power control system for a hybrid vehicle - Google Patents

Electric power control system for a hybrid vehicle Download PDF

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Publication number
WO2005042289A2
WO2005042289A2 PCT/US2004/034311 US2004034311W WO2005042289A2 WO 2005042289 A2 WO2005042289 A2 WO 2005042289A2 US 2004034311 W US2004034311 W US 2004034311W WO 2005042289 A2 WO2005042289 A2 WO 2005042289A2
Authority
WO
WIPO (PCT)
Prior art keywords
battery
electronically controlled
control system
controlled switch
coupled
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/US2004/034311
Other languages
French (fr)
Other versions
WO2005042289A3 (en
Inventor
Goro Tamai
Michael Reynolds
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motors Liquidation Co
Original Assignee
General Motors Corp
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 General Motors Corp filed Critical General Motors Corp
Priority to DE112004001979.6T priority Critical patent/DE112004001979B4/en
Publication of WO2005042289A2 publication Critical patent/WO2005042289A2/en
Anticipated expiration legal-status Critical
Publication of WO2005042289A3 publication Critical patent/WO2005042289A3/en
Ceased legal-status Critical Current

Links

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
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • 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
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/10—Electrical machine types
    • B60L2220/18—Reluctance machines

Definitions

  • the present invention relates to the power control system for a hybrid powertrain. More specifically the present invention relates to a single- voltage electric power control system for a hybrid powertrain.
  • a HEV may contain either a parallel drivetrain configuration or a series drivetrain configuration. Either of the configurations allows the ICE to perform relatively more efficiently than its conventional ICE counterpart.
  • the electric motor works in parallel with the ICE to combine the power and range advantages of the ICE with the efficiency and the electrical regeneration capability of an electric motor.
  • the ICE drives the wheels through a transaxle.
  • the ICE drives a generator to produce electricity for the electric motor, which drives the transaxle. This allows the electric motor to assume some of the power responsibilities of the ICE, thereby permitting the use of a smaller and more efficient ICE.
  • An exemplary hybrid vehicle is described in U.S. Patent No.
  • the electric motor/generator uses a combination of storage batteries to propel or drive the vehicle when the ICE is not operating.
  • a hybrid vehicle will shut down the ICE during a stopped or idle condition, allowing the electric motor to propel the vehicle and eventually restart the ICE.
  • Battery packs having secondary/rechargeable batteries are an important component of hybrid vehicle systems, as they enable the MoGen to store braking energy during regeneration and charging by the ICE.
  • the present invention utilizes an additional power source consisting of either an auxiliary battery or an auxiliary battery combined with a DC/DC converter.
  • the present invention includes a method and apparatus to improve the pleasability and performance for a single-voltage hybrid system.
  • the system may include a vehicle having both parallel and series hybrid drive systems incorporating an ICE, MoGen and a battery pack.
  • the hybrid drive system of the present invention will utilize the ICE and MoGen to propel or motor the vehicle during the vehicle conditions which are most efficient for the ICE or MoGen operation.
  • the MoGen may act as an electrical generator to supply electrical power to the vehicle's electrical infrastructure (fans, radios, instrumentation, control, etc.) as well as recharging the battery pack.
  • the battery pack is comprised of two single-voltage batteries.
  • the second battery is connected in parallel with an accessory load isolator (ALI) to actively decouple the hybrid-related power flow from the voltage-sensitive accessory power flow.
  • ALI accessory load isolator
  • a DC DC converter may also be used to bypass the power during the vehicle cruising/charging conditions to enhance system efficiency.
  • the output voltage of the DC/DC converter can be ramped to converge with the charging bus voltage, before the bypass is executed.
  • FIG. 1 The Figure is a diagrammatic drawing of the hybrid vehicle system of the present invention.
  • the Figure is a diagrammatic drawing of a hybrid vehicle system 10 of the present invention.
  • a motor generator (MoGen) 12 is dynamically coupled to an internal combustion engine (ICE) 14 and functions as either a motor to propel the vehicle or a generator to charge a battery pack, depending on the operating state of the vehicle (i.e. braking, stopped, or operating at a constant speed on a highway).
  • the MoGen 12 is preferably an AC induction machine but may comprise any known electrical motor/generator technology, including, but not limited to, DC machines, internal permanent magnet motors, brushless motors, synchronous machines, and switched reluctance machines.
  • the battery pack is comprised of two 12 volt batteries.
  • the battery types used in the present invention include, but are not limited to, lead-acid, nickel metal hydride, lithium ion, lithium polymer, or any other battery technology that may be used in a vehicle.
  • one ESS 12 volt 16 absorbent lead-acid glass mat (AGM) type battery 16 is connected to the positive and ground terminals of a power electronics box (PEB) (not shown). Then a second and preferably smaller, less expensive, flooded type auxiliary battery 18 is connected in parallel via a switch 20 and miscellaneous loads 28 such as EPS and brake by wire.
  • AGM absorbent lead-acid glass mat
  • the switch 20 may comprise a transistor (FET, BJT, IGBT), electromechanical relay, thyristor (SCR, Triac), or any other electrical switching device known in the art, to isolate the auxiliary battery 18 from the ESS battery 16.
  • the switch is controlled by an electronic control module (ECM) that monitors the voltage and current of the system.
  • ECM electronice control module
  • This switch 20 is defined as the ALI (Accessory Load Isolator) in the present invention.
  • ALI Accessory Load Isolator
  • a relatively small DC/DC converter ( ⁇ 300W) 24 is implemented for the voltage-sensitive loads only such as lights, fans, and other accessory loads 26.
  • a DC/DC bypass line can be used during non-ESS driving.
  • the ALI 20 opens, so that during the current spikes or steady draws on the ESS battery 16, the accessories' performance will not dip or undulate.
  • the ALI 20 can also be opened for relatively large regenerative braking pulses, depending on the auxiliary battery characteristics 18.
  • the opening of the ALI 20 can be preceded by a ramping down of the system voltage; thus the accessory system voltage reduction from generating (e.g. 13.5 V during cruising) to 12.5 during idle-stop can be perceived by the drive as an unobjectionable low-frequency undulation, rather than a noticeable spike.
  • the present invention will allow large current spikes to be decoupled from an already highly loaded 12V ESS battery. Since both starters are controlled by an ECM, the tandem crank start can still be implemented for cold starts. During cold or weak-battery key crank events, the ALI 20 isolates the ECM from the large voltage dips of the ESS/starter battery. Depending upon power applications in the vehicle, the auxiliary battery 18 may be sized to minimize voltage drop during the idle-stop, the non-voltage sensitive accessory loads can be moved to run off the auxiliary battery 18 in alternate embodiments of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

A vehicle powertrain control system including an electric motor drive system (12), a first battery (16) coupled to the electric motor drive system (12), an electronically controlled switch (20) coupled to the first battery (16), a second battery (18) coupled to the electronically controlled switch (20), and where the electronically controlled switch (20) applies power from the second battery (18) to supplement the first battery (16).

Description

ELECTRIC POWER CONTROL SYSTEM FOR A HYBRID VEHICLE
TECHNICAL FIELD
[0001] The present invention relates to the power control system for a hybrid powertrain. More specifically the present invention relates to a single- voltage electric power control system for a hybrid powertrain.
BACKGROUND OF THE INVENTION
[0002] The increasing demand to improve fuel economy, eliminate emissions, and reduce noise levels has driven the automotive market to develop a variety of propulsion mechanisms. As an alternative to the traditional internal combustion engine (ICE) powertrain the industry has developed a hybrid electric system powered by an electric traction motor(s) and an internal combustion engine. During varying driving conditions, hybrid electric vehicles (HEVs) will alternate between the separate power sources, depending on the most efficient manner of operation of each source.
[0003] A HEV may contain either a parallel drivetrain configuration or a series drivetrain configuration. Either of the configurations allows the ICE to perform relatively more efficiently than its conventional ICE counterpart. In a parallel hybrid vehicle the electric motor works in parallel with the ICE to combine the power and range advantages of the ICE with the efficiency and the electrical regeneration capability of an electric motor. The ICE drives the wheels through a transaxle. In a series hybrid vehicle, the ICE drives a generator to produce electricity for the electric motor, which drives the transaxle. This allows the electric motor to assume some of the power responsibilities of the ICE, thereby permitting the use of a smaller and more efficient ICE. An exemplary hybrid vehicle is described in U.S. Patent No. 6,275,004 entitled "System for Battery Module Balancing via Variable Voltage DC DC Converter In a Hybrid-Electric Powertrain, and U.S. Patent No. 6,616,569 entitled "Torque Control System for a Hybrid Vehicle With an Automatic Transmission" both of which are incorporated by reference in their entirety.
[0004] In either parallel or series configuration, the electric motor/generator (MoGen) uses a combination of storage batteries to propel or drive the vehicle when the ICE is not operating. A hybrid vehicle will shut down the ICE during a stopped or idle condition, allowing the electric motor to propel the vehicle and eventually restart the ICE. Battery packs having secondary/rechargeable batteries are an important component of hybrid vehicle systems, as they enable the MoGen to store braking energy during regeneration and charging by the ICE.
[0005] To perform engine stop/start functions, relatively high electrical power is required to quickly crank the ICE from a stop. To achieve this function, a relatively higher voltage system (e.g. 36V) can be implemented for the MoGen bus, coupled with separate conventional 12V system to support the existing accessory loads. However, to reduce complexity, vehicle modifications, and possible component/system cost, a single voltage hybrid system can be considered. That single-voltage can be 12V or 42V, depending on the voltage/power requirement of a HEV and its accessories. [0006] If a hybrid system is implemented into a conventional 12V electrical system, the voltage swings during dynamic Engine-Stop-Start (ESS) functions and engine stops (at idle) could be unsatisfactory. For example, when performing ESS functions, the large power draw results in large voltage swings. These voltage dips and surges result in customer distractions such as undulating headlights/dashlights and blower speed. These voltage swings can also present a performance issue if the battery or battery pack (already strained from ESS action) is needed to support accessories such as Electric Power Steering (EPS). Thus, for a single-voltage hybrid system to be viable, the present invention utilizes an additional power source consisting of either an auxiliary battery or an auxiliary battery combined with a DC/DC converter. SUMMARY OF THE INVENTION
[0007] The present invention includes a method and apparatus to improve the pleasability and performance for a single-voltage hybrid system. The system may include a vehicle having both parallel and series hybrid drive systems incorporating an ICE, MoGen and a battery pack. The hybrid drive system of the present invention will utilize the ICE and MoGen to propel or motor the vehicle during the vehicle conditions which are most efficient for the ICE or MoGen operation. During normal operation of the vehicle when the ICE is running, the MoGen may act as an electrical generator to supply electrical power to the vehicle's electrical infrastructure (fans, radios, instrumentation, control, etc.) as well as recharging the battery pack. [0008] In the preferred embodiment of the present invention, the battery pack is comprised of two single-voltage batteries. The second battery is connected in parallel with an accessory load isolator (ALI) to actively decouple the hybrid-related power flow from the voltage-sensitive accessory power flow. A DC DC converter may also be used to bypass the power during the vehicle cruising/charging conditions to enhance system efficiency. The output voltage of the DC/DC converter can be ramped to converge with the charging bus voltage, before the bypass is executed.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] The Figure is a diagrammatic drawing of the hybrid vehicle system of the present invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT
[0010] The Figure is a diagrammatic drawing of a hybrid vehicle system 10 of the present invention. A motor generator (MoGen) 12 is dynamically coupled to an internal combustion engine (ICE) 14 and functions as either a motor to propel the vehicle or a generator to charge a battery pack, depending on the operating state of the vehicle (i.e. braking, stopped, or operating at a constant speed on a highway). The MoGen 12 is preferably an AC induction machine but may comprise any known electrical motor/generator technology, including, but not limited to, DC machines, internal permanent magnet motors, brushless motors, synchronous machines, and switched reluctance machines.
[0011] In the preferred embodiment, the battery pack is comprised of two 12 volt batteries. The battery types used in the present invention include, but are not limited to, lead-acid, nickel metal hydride, lithium ion, lithium polymer, or any other battery technology that may be used in a vehicle. In the preferred embodiment of the present invention, one ESS 12 volt 16 absorbent lead-acid glass mat (AGM) type battery 16 is connected to the positive and ground terminals of a power electronics box (PEB) (not shown). Then a second and preferably smaller, less expensive, flooded type auxiliary battery 18 is connected in parallel via a switch 20 and miscellaneous loads 28 such as EPS and brake by wire. The switch 20 may comprise a transistor (FET, BJT, IGBT), electromechanical relay, thyristor (SCR, Triac), or any other electrical switching device known in the art, to isolate the auxiliary battery 18 from the ESS battery 16. The switch is controlled by an electronic control module (ECM) that monitors the voltage and current of the system. [0012] This switch 20 is defined as the ALI (Accessory Load Isolator) in the present invention. In the preferred embodiment, a relatively small DC/DC converter (~300W) 24 is implemented for the voltage-sensitive loads only such as lights, fans, and other accessory loads 26. For enhanced efficiency, a DC/DC bypass line can be used during non-ESS driving. In an alternative embodiment, no DC/DC converter is necessary, as the auxiliary battery 18 will power the vehicle accessories. [0013] When any hybrid activity that requires a relatively large battery power discharge is called, or if the ICE 14 is stopped, the ALI 20 opens, so that during the current spikes or steady draws on the ESS battery 16, the accessories' performance will not dip or undulate. The ALI 20 can also be opened for relatively large regenerative braking pulses, depending on the auxiliary battery characteristics 18. In an alternative embodiment of the present invention, the opening of the ALI 20 can be preceded by a ramping down of the system voltage; thus the accessory system voltage reduction from generating (e.g. 13.5 V during cruising) to 12.5 during idle-stop can be perceived by the drive as an unobjectionable low-frequency undulation, rather than a noticeable spike.
[0014] The present invention will allow large current spikes to be decoupled from an already highly loaded 12V ESS battery. Since both starters are controlled by an ECM, the tandem crank start can still be implemented for cold starts. During cold or weak-battery key crank events, the ALI 20 isolates the ECM from the large voltage dips of the ESS/starter battery. Depending upon power applications in the vehicle, the auxiliary battery 18 may be sized to minimize voltage drop during the idle-stop, the non-voltage sensitive accessory loads can be moved to run off the auxiliary battery 18 in alternate embodiments of the present invention.
[0015] It is to be understood that the invention is not limited to the exact construction illustrated and described above, but that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims

CLAIMS 1. A vehicle powertrain control system comprising: an electric motor drive system; a first battery coupled to said electric motor drive system; an electronically controlled switched coupled to said first battery; a second battery coupled to said electronically controlled switch; and wherein said electronically controlled switch applies power from said second battery to supplement said first battery.
2. The vehicle powertrain control system of Claim 1 further comprising a DC/DC converter coupled to said electronically controlled switch, wherein said electronically controlled switch applies power from said DC/DC converter to supplement said second battery.
3. The vehicle powertrain control system of Claim 1 wherein said electric motor drive system comprises an inverter coupled to an induction motor.
4. The vehicle control system of Claim 1 wherein said first battery comprises a lead acid battery.
5. The vehicle control system of Claim 1 wherein said second battery comprises a lead acid battery.
6. The vehicle control system of Claim 1 wherein said electronically controlled switch comprises a silicon conducting rectifier.
7. The vehicle control system of Claim 1 wherein said electronically controlled switch comprises a transistor.
8. The vehicle control system of Claim 1 wherein said electronically controlled switch comprises an electromechanical relay.
9. A vehicle powertrain control system comprising: an electric motor drive system; a first battery coupled to said electric motor drive system; an electronically controlled switched coupled to said first battery; a DC/DC converter coupled to said electronically controlled switch; and wherein said electronically controlled switch applies power from said DC/DC converter to supplement said first battery.
10. The vehicle powertrain control system of Claim 9 further comprising a second battery coupled to said electronically controlled switch, wherein said electronically controlled switch applies power from said second battery to supplement said first battery.
PCT/US2004/034311 2003-10-20 2004-10-19 Electric power control system for a hybrid vehicle Ceased WO2005042289A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112004001979.6T DE112004001979B4 (en) 2003-10-20 2004-10-19 System for controlling the electrical power for a hybrid vehicle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/691,332 2003-10-20
US10/691,332 US7389837B2 (en) 2003-10-20 2003-10-20 Electric power control system for a hybrid vehicle

Publications (2)

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WO2005042289A2 true WO2005042289A2 (en) 2005-05-12
WO2005042289A3 WO2005042289A3 (en) 2006-08-17

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CN (1) CN100506587C (en)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101836643B1 (en) 2016-05-30 2018-03-08 현대자동차주식회사 Mild hybrid system of vehicle

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7201244B2 (en) * 2003-10-03 2007-04-10 Letourneau, Inc. Vehicle for materials handling and other industrial uses
US20080135357A1 (en) * 2004-11-29 2008-06-12 Hans Lang Electromechanical Braking System
DE102006036425A1 (en) * 2006-08-04 2008-02-07 Bayerische Motoren Werke Ag System for supplying power to electrical consumers of a motor vehicle
FR2921590B1 (en) * 2007-10-02 2010-02-19 Peugeot Citroen Automobiles Sa DEVICE AND METHOD FOR MULTI-VOLTAGE POWER SUPPLY FOR HYBRID VEHICLES
USRE47647E1 (en) 2008-04-26 2019-10-15 Timothy Domes Pneumatic mechanical power source
US8076797B2 (en) * 2008-05-15 2011-12-13 Indy Power Systems Llc Energy transfer circuit and method
JP4450095B2 (en) * 2008-07-11 2010-04-14 トヨタ自動車株式会社 Control system and control method for hybrid vehicle
US20100039070A1 (en) * 2008-08-18 2010-02-18 Michael Steven Hargett Storage device alternating recharging process
US9162558B2 (en) * 2009-06-15 2015-10-20 Polaris Industries Inc. Electric vehicle
CN102596672B (en) 2009-09-15 2015-03-04 Kpit技术有限责任公司 Motor assistance for a hybrid vehicle based on predicted driving range
US8423214B2 (en) 2009-09-15 2013-04-16 Kpit Cummins Infosystems, Ltd. Motor assistance for a hybrid vehicle
JP5926182B2 (en) 2009-09-15 2016-05-25 ケーピーアイティ テクノロジーズ リミテッド Hybrid vehicle motor assistance based on user input
MX2012003114A (en) 2009-09-15 2012-06-19 Kpit Cummins Infosystems Ltd Method of converting vehicle into hybrid vehicle.
US20110262824A1 (en) * 2010-04-23 2011-10-27 Gm Global Technology Operations, Inc. Apparatus for a 12v hybrid fuel cell vehicle
DE102010017417A1 (en) * 2010-06-17 2011-12-22 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Electric supply and starting system for a motor vehicle and method for operating the electrical supply and starting system
US8638059B2 (en) 2010-08-11 2014-01-28 Dayton-Phoenix Group, Inc. Control for multi-phase induction motor
US8981710B2 (en) 2010-09-20 2015-03-17 Indy Power Systems Llc Energy management system
US8462487B2 (en) 2010-11-18 2013-06-11 Bae Systems Controls Inc. ESS with integrated DC/DC converter and hybrid power electronics
JP5982902B2 (en) 2012-03-15 2016-08-31 日産自動車株式会社 Vehicle control device
US9441599B2 (en) 2012-07-17 2016-09-13 Altigreen Propulsion Labs Private Limited Induction motor-permanent magnet generator tandem configuration starter-generator for hybrid vehicles
US9580065B2 (en) 2012-07-17 2017-02-28 Altigreen Propulsion Labs Private Limited Dual-structured electric drive and power system for hybrid vehicles
JP5930041B2 (en) * 2012-07-27 2016-06-08 日産自動車株式会社 Vehicle control apparatus and vehicle control method
JP5915749B2 (en) 2012-07-27 2016-05-11 日産自動車株式会社 Vehicle control apparatus and vehicle control method
US9236813B2 (en) 2013-09-23 2016-01-12 Lear Corporation Inverter with dual-range load sensing
US9812949B2 (en) 2013-10-10 2017-11-07 Indy Power Systems Llc Poly-phase inverter with independent phase control
JP2015168293A (en) * 2014-03-05 2015-09-28 株式会社デンソー Vehicle power supply system
JP6384441B2 (en) * 2015-09-24 2018-09-05 トヨタ自動車株式会社 Power supply control device, vehicle and power supply control method
GB2537273B (en) * 2015-10-16 2018-02-14 Ford Global Tech Llc A vehicle electrical system
TWI629194B (en) * 2016-01-22 2018-07-11 力能科技有限公司 Battery electric vehicle
US10597024B2 (en) * 2016-03-10 2020-03-24 Ford Global Technologies, Llc System and method for powering start-stop and hybrid vehicle components and accessories
US10118477B2 (en) 2016-06-14 2018-11-06 Polaris Industries Inc. Hybrid utility vehicle
DE102017104958B4 (en) * 2017-03-09 2024-03-14 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Battery storage system
KR102417380B1 (en) * 2017-04-12 2022-07-06 현대자동차주식회사 Apparatus and Method for controlling start sequence of an engine in a vehicle
US11067050B2 (en) 2017-05-16 2021-07-20 Ford Global Technologies, Llc Vehicle power relay startup control and diagnostic
US10780770B2 (en) 2018-10-05 2020-09-22 Polaris Industries Inc. Hybrid utility vehicle
US11370266B2 (en) 2019-05-16 2022-06-28 Polaris Industries Inc. Hybrid utility vehicle
US12485981B2 (en) 2021-03-24 2025-12-02 Polaris Industries Inc. Electric recreational vehicle

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4438342A (en) * 1980-05-15 1984-03-20 Kenyon Keith E Novel hybrid electric vehicle
US4687983A (en) * 1985-01-17 1987-08-18 Beyn Edgar J Alternation control system having manual current selection capability and voltage dependent cutoff circuit
JP3039119B2 (en) * 1992-03-31 2000-05-08 日産自動車株式会社 Power supply for vehicles
JP3491714B2 (en) * 1995-06-14 2004-01-26 本田技研工業株式会社 Battery over-discharge prevention device for electric vehicles
JP3524661B2 (en) * 1995-12-08 2004-05-10 本田技研工業株式会社 Power control device for electric vehicle
JP3617183B2 (en) * 1996-05-08 2005-02-02 トヨタ自動車株式会社 Electric vehicle power supply
EP1759915A3 (en) * 1998-07-21 2007-03-14 TOKYO R&D CO., LTD. Hybrid vehicle and method of controlling its running
WO2001000934A1 (en) * 1999-06-25 2001-01-04 Kobelco Construction Machinery Co., Ltd. Hybrid construction machinery and control device of the construction machinery
JP2001078302A (en) * 1999-09-07 2001-03-23 Tokyo R & D Co Ltd Motor-driven vehicle
US6472790B2 (en) * 2000-02-24 2002-10-29 Briggs & Stratton Corporation Stator for an electric motor/generator with a half-integer winding
US6275004B1 (en) * 2000-09-11 2001-08-14 General Motors Corporation System for battery module balancing via variable voltage DC-DC converter in a hybrid-electric powertrain
US6522105B2 (en) * 2000-10-23 2003-02-18 Shindengen Electric Manufacturing Co., Ltd. Battery charging apparatus
EP1360090B1 (en) * 2001-02-16 2005-01-12 Siemens Aktiengesellschaft Motor vehicle electric system
EP1245452A1 (en) * 2001-03-30 2002-10-02 Siemens Aktiengesellschaft Vehicle on-board network, particularly for a truck
US6616569B2 (en) * 2001-06-04 2003-09-09 General Motors Corporation Torque control system for a hybrid vehicle with an automatic transmission
US6674180B2 (en) * 2001-10-12 2004-01-06 Ford Global Technologies, Llc Power supply for a hybrid electric vehicle
JP4053289B2 (en) * 2001-12-12 2008-02-27 本田技研工業株式会社 Storage battery temperature control device and vehicle device using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101836643B1 (en) 2016-05-30 2018-03-08 현대자동차주식회사 Mild hybrid system of vehicle

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CN1871143A (en) 2006-11-29
WO2005042289A3 (en) 2006-08-17
US20050082095A1 (en) 2005-04-21
US7389837B2 (en) 2008-06-24
DE112004001979T5 (en) 2006-10-19
DE112004001979B4 (en) 2017-10-19
CN100506587C (en) 2009-07-01

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