US20030184153A1 - Method and apparatus for vehicle regenerative braking - Google Patents

Method and apparatus for vehicle regenerative braking Download PDF

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Publication number
US20030184153A1
US20030184153A1 US10/063,193 US6319302A US2003184153A1 US 20030184153 A1 US20030184153 A1 US 20030184153A1 US 6319302 A US6319302 A US 6319302A US 2003184153 A1 US2003184153 A1 US 2003184153A1
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United States
Prior art keywords
vehicle
assembly
sensor
selectively
braking
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.)
Abandoned
Application number
US10/063,193
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English (en)
Inventor
Peter Worrel
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.)
Ford Motor Co
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Ford Motor Co
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Filing date
Publication date
Application filed by Ford Motor Co filed Critical Ford Motor Co
Priority to US10/063,193 priority Critical patent/US20030184153A1/en
Assigned to FORD MOTOR COMPANY reassignment FORD MOTOR COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WORREL, PETER FRANCIS
Priority to EP03100112A priority patent/EP1348592B1/en
Priority to DE60300953T priority patent/DE60300953T2/de
Priority to JP2003083284A priority patent/JP2003327103A/ja
Publication of US20030184153A1 publication Critical patent/US20030184153A1/en
Priority to US10/708,854 priority patent/US8251463B2/en
Abandoned legal-status Critical Current

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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
    • B60L7/00—Electrodynamic brake systems for vehicles in general
    • B60L7/24—Electrodynamic brake systems for vehicles in general with additional mechanical or electromagnetic braking
    • B60L7/26—Controlling the braking effect
    • 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
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/2009—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for braking
    • 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
    • B60L7/00—Electrodynamic brake systems for vehicles in general
    • B60L7/10—Dynamic electric regenerative braking
    • 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
    • B60L7/00—Electrodynamic brake systems for vehicles in general
    • B60L7/10—Dynamic electric regenerative braking
    • B60L7/18—Controlling the braking effect
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/46—Drive Train control parameters related to wheels
    • B60L2240/461—Speed
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/46—Drive Train control parameters related to wheels
    • B60L2240/465—Slip
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/48—Drive Train control parameters related to transmissions
    • B60L2240/486—Operating parameters
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/50—Drive Train control parameters related to clutches
    • B60L2240/507—Operating parameters
    • 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
    • B60L2260/00—Operating Modes
    • B60L2260/20—Drive modes; Transition between modes
    • B60L2260/28—Four wheel or all wheel drive
    • 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
    • B60L2270/00—Problem solutions or means not otherwise provided for
    • B60L2270/10—Emission reduction
    • B60L2270/14—Emission reduction of noise
    • B60L2270/145—Structure borne vibrations
    • 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
    • B60L3/10—Indicating wheel slip ; Correction of wheel slip
    • B60L3/106—Indicating wheel slip ; Correction of wheel slip for maintaining or recovering the adhesion of the drive wheels
    • B60L3/108—Indicating wheel slip ; Correction of wheel slip for maintaining or recovering the adhesion of the drive wheels whilst braking, i.e. ABS
    • 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
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric 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
    • Y02T10/62—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
    • Y02T10/64—Electric machine technologies in electromobility
    • 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
    • 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 present invention generally relates to a method and an apparatus for determining whether a vehicle has been regeneratively braked and for frictionally braking the vehicle in the event that the vehicle has not been regeneratively braked and to a vehicle which incorporates the method and apparatus and more particularly, to a method and apparatus which measures and/or senses the speed of a vehicle after a regenerative braking assembly has been activated, effective to determine whether the vehicle has been regeneratively braked and, based upon the measured or sensed speed, activates a frictional brake assembly, effective to brake the vehicle.
  • a vehicle may be braked or selectively decelerated or slowed by the use of several techniques or strategies.
  • a hybrid type vehicle may be regeneratively braked by selectively coupling the torque emanating from the transmission or powertrain assembly to an energy storage device (e.g., a flywheel assembly), thereby conserving energy while slowing or decelerating the vehicle.
  • an energy storage device e.g., a flywheel assembly
  • Some regenerative strategies require that the torque be converted into electrical energy, by a motor, and then stored within a battery.
  • a method and an apparatus is provided for braking a vehicle which overcomes some or all of the previously delineated drawbacks of prior braking systems and strategies.
  • an assembly having a selectively energizable frictional braking assembly, a sensor which determines whether a certain amount of regenerative braking has been applied to a vehicle and which generates a signal in the absence of the sensed application of the certain amount of regenerative braking to the vehicle, and a controller assembly which is coupled to the selectively energizable frictional braking assembly and to the sensor, which receives the signal from the sensor and, in response to the receipt of the first signal from the sensor, selectively activates the frictional braking assembly, effective to provide braking to the vehicle.
  • a vehicle having at least one wheel which will be selectively braked, a frictional brake assembly which is selectively coupled to the at least one wheel; a regenerative braking assembly, a sensor which measures a speed of the vehicle and which produces a first signal which is indicative of the measured speed, a brake request member which selectively generates a second signal which represents a certain amount of desired vehicular deceleration, and a controller which is coupled to the brake request member, to the frictional brake assembly, and to the speed sensor, the controller receiving the second signal and, in response to the receipt of the second signal attempts to decelerate the vehicle by use of the regenerative braking assembly, the controller further receiving the first signal and uses the first and second signals to determine whether the vehicle has been decelerated and, based upon the determination, selectively brakes the at least one wheel by use of the frictional brake assembly.
  • a method for braking a vehicle having the steps of initially attempting to regeneratively brake the vehicle; determining whether the vehicle has been regeneratively braked; and automatically causing the vehicle to be frictionally braked if the vehicle has failed to be regeneratively braked.
  • FIG. 1 is a block diagram of a vehicle incorporating the apparatus of the preferred embodiment of the invention.
  • FIG. 1 there is shown a vehicle 10 which includes a regenerative braking confirmation assembly 12 which is made in accordance with the teachings of the preferred embodiment of the invention.
  • vehicle 10 includes a torque generator 14 , such as but not limited to an internal combustion engine or fuel cell assembly, and a transmission assembly 16 which is physically coupled to the torque generator 14 by a powertrain member 18 .
  • Vehicle 10 further includes a regenerative brake assembly 20 which comprises a motor 22 , a clutch 24 , and a battery 26 .
  • the clutch 24 is physically coupled to the transmission 16 by the output shaft 76 , and to the motor 22 .
  • the motor 22 is electrically coupled to the battery 26 and the battery 26 may comprise a conventional vehicular battery.
  • the vehicle 10 includes a differential assembly 30 which is physically coupled to the clutch 24 by a powertrain member 32 .
  • vehicle 10 includes a pair of rear axles or halfshafts 36 , 38 which are each coupled to the differential assembly 30 and to a respective rear wheel 40 , 42 .
  • the vehicle 10 also includes a front axle 46 which is coupled to a pair of front wheels 48 , 50 , and frame members 54 , 56 which are coupled to the front axle 46 .
  • Frame member 54 is further coupled to the rear axle 38 while the frame member 56 is coupled to the rear axle 36 .
  • Vehicle 10 further includes frictional brake assemblies 60 , 62 , 64 , and 66 which respectively reside upon or in close proximity to wheels 40 , 42 , 48 , and 50 and which selectively and frictionally brake these respective wheels 40 , 42 , 48 , and 50 , effective to slow or stop the vehicle 10 (e.g., to brake the vehicle 10 ), and a controller 70 which is operable under stored program control and which is physically and communicatively coupled to the clutch 24 and to the frictional brake assemblies 60 - 66 .
  • Vehicle 10 also includes a selectively depressible brake request member or brake pedal 73 which is coupled to the controller 70 .
  • controller 70 in one embodiment, forms part of the regenerative braking confirmation assembly 12 and also provides other vehicular functions which are set forth below. In other non-limiting embodiment, a separate controller may be used to provide the regenerative braking confirmation function of the preferred embodiment of the invention.
  • vehicle 10 it should be realized that only the relevant portions of vehicle 10 are shown within FIG. 1 and described above and that while the vehicle 10 discloses a rear wheel drive vehicle, the present invention is applicable to a wide variety of vehicular architectures, including but not limited to a front wheel drive vehicle, an all wheel drive vehicle, and/or an on demand drive vehicle and that nothing in this description is meant to limit the applicability of the present invention only to the type of vehicle which is shown in FIG. 1.
  • torque is produced by the torque generator 14 and is communicated to the transmission 16 by the drivetrain member 18 .
  • the transmission 16 then outputs at least a portion of the received torque by the use of the output shaft or member 76 which is coupled to the clutch 24 and to the transmission 16 .
  • the controller 70 controllably causes the clutch 24 to communicate the torque which is output from the transmission 16 (i.e., from the shaft 76 ) to the differential 30 , by the use of powertrain member 32 .
  • the differential 30 then communicates the torque to the axles 36 , 38 , effective to allow the wheels 40 , 42 to rotate and to allow the vehicle 10 to be driven.
  • the controller 70 When the controller 70 senses a depression of the member 73 , the controller 70 controllably causes the clutch 24 to communicate the torque emanating from the output member 76 to the motor 22 .
  • the received torque causes the motor 22 to function as a generator and to communicate the generated electrical energy into the battery 26 , thereby conserving energy (e.g., transforming the received kinetic energy into electrical energy) while braking or decelerating the vehicle 10 (e.g., regeneratively braking the vehicle 10 ).
  • the controller 70 activates the frictional braking assemblies 60 - 66 .
  • frictional braking assemblies 60 - 66 may be employed such as those which are hydraulically or pneumatically activated and those which are of the anti-lock type.
  • a wide variety of regenerative braking assemblies may be used to replace the assembly 20 , including but not limited to those including a flywheel which receives torque from the clutch 24 , and that nothing in this description is meant to limit the present invention to use with a certain type of regenerative braking assembly or frictional braking assembly.
  • Regenerative braking confirmation assembly 12 includes or makes use of the controller 70 .
  • one or more controllers may be used to perform the functionality and methodology of the preferred embodiment of the invention.
  • Assembly 12 further includes at least one speed sensor 80 which is coupled to the controller 70 and which is adapted to sense the speed of the wheel 40 and to communicate the sensed speed to the controller 70 . While a single sensor 80 is shown in FIG. 1, it should be appreciated that additional numbers of sensors may be employed in other non-limiting embodiments of the invention on any or all of the other wheels 42 , 48 and 50 .
  • controller 70 when controller 70 causes the clutch 24 to regeneratively brake the vehicle 10 , the controller 70 communicates with the at least one speed sensor 80 in order to ascertain whether the vehicle 10 is decelerating (i.e., whether the vehicle 10 is being regeneratively braked).
  • the controller 70 automatically (i.e., without intervention by the user or operator of the vehicle) causes the frictional braking assemblies 60 - 66 to decelerate the vehicle 10 , and may provide status or other types of information to the user/driver indicating that the desired regenerative braking has not occurred or is not occurring.
  • the vehicle deceleration may be calculated by conventional slip control equations which utilize the wheel speed which is provided by the at least one sensor 80 . Such a calculation may occur within controller 70 .
  • discrete positions of the member 73 are calibrated to ascertain the amount of deceleration which is respectively requested by each position.
  • This calibrated data (along with the data associated with the current position of the member 73 ) is stored within the controller 70 and is used, by the controller 70 , in combination with the data emanating from the at least one speed sensor 80 to not only ascertain whether the vehicle 10 is being decelerated, but to determine whether the requested amount of deceleration has been achieved.
  • the frictional braking is not applied until it is determined that the full amount of the requested regenerative braking has not been applied to the vehicle 10 .
  • torque generator 14 may comprise a reservoir of fluid in combination with a hydraulic pump which is communicatively coupled to the reservoir and controllably coupled to the controller 70 .
  • powertrain member 18 may be replaced by at least one hydraulic conduit and transmission 16 may be replaced by an assembly which rotates in response to the receipt of fluid.
  • the pump upon receipt of certain signals from the controller 70 , the pump in cooperation with the reservoir will selectively couple the fluid to the transmission which causes the transmission to hydraulically provide positive or negative torque to accelerate or decelerate the vehicle 10 .

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Regulating Braking Force (AREA)
US10/063,193 2002-03-28 2002-03-28 Method and apparatus for vehicle regenerative braking Abandoned US20030184153A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US10/063,193 US20030184153A1 (en) 2002-03-28 2002-03-28 Method and apparatus for vehicle regenerative braking
EP03100112A EP1348592B1 (en) 2002-03-28 2003-01-21 A method and apparatus for vehicle regenerative braking
DE60300953T DE60300953T2 (de) 2002-03-28 2003-01-21 Verfahren und Einrichtung für ein regeneratives Bremsen eines Fahrzeugs
JP2003083284A JP2003327103A (ja) 2002-03-28 2003-03-25 車両の回生制動方法及びその装置
US10/708,854 US8251463B2 (en) 2002-03-28 2004-03-29 Vehicle regenerative braking system with system monitor and redundant control capability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/063,193 US20030184153A1 (en) 2002-03-28 2002-03-28 Method and apparatus for vehicle regenerative braking

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US10/708,854 Continuation-In-Part US8251463B2 (en) 2002-03-28 2004-03-29 Vehicle regenerative braking system with system monitor and redundant control capability

Publications (1)

Publication Number Publication Date
US20030184153A1 true US20030184153A1 (en) 2003-10-02

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US10/063,193 Abandoned US20030184153A1 (en) 2002-03-28 2002-03-28 Method and apparatus for vehicle regenerative braking
US10/708,854 Active 2027-10-17 US8251463B2 (en) 2002-03-28 2004-03-29 Vehicle regenerative braking system with system monitor and redundant control capability

Family Applications After (1)

Application Number Title Priority Date Filing Date
US10/708,854 Active 2027-10-17 US8251463B2 (en) 2002-03-28 2004-03-29 Vehicle regenerative braking system with system monitor and redundant control capability

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US (2) US20030184153A1 (ja)
EP (1) EP1348592B1 (ja)
JP (1) JP2003327103A (ja)
DE (1) DE60300953T2 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7311163B2 (en) * 2004-11-16 2007-12-25 Eaton Corporation Regeneration and brake management system
CN103171444A (zh) * 2011-12-22 2013-06-26 科达汽车公司 电动车辆再生制动系统
US10351127B2 (en) * 2013-12-25 2019-07-16 Denso Corporation Vehicle diagnosis system and method
WO2020227286A1 (en) * 2019-05-06 2020-11-12 Aikar Technology Inc. A vehicle braking method and system

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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JP2003327103A (ja) 2003-11-19
US8251463B2 (en) 2012-08-28
DE60300953T2 (de) 2006-05-11
US20040164612A1 (en) 2004-08-26
EP1348592B1 (en) 2005-07-06
EP1348592A1 (en) 2003-10-01

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