ITTO940224A1 - Unita' motrice per veicoli elettrici - Google Patents

Unita' motrice per veicoli elettrici Download PDF

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Publication number
ITTO940224A1
ITTO940224A1 IT94TO000224A ITTO940224A ITTO940224A1 IT TO940224 A1 ITTO940224 A1 IT TO940224A1 IT 94TO000224 A IT94TO000224 A IT 94TO000224A IT TO940224 A ITTO940224 A IT TO940224A IT TO940224 A1 ITTO940224 A1 IT TO940224A1
Authority
IT
Italy
Prior art keywords
wheel
drive unit
unit according
electric motor
drive shaft
Prior art date
Application number
IT94TO000224A
Other languages
English (en)
Inventor
Leonardo Fioravanti
Giorgio Valentini
Original Assignee
Fioravanti Srl
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 Fioravanti Srl filed Critical Fioravanti Srl
Priority to ITTO940224A priority Critical patent/IT1273084B/it
Publication of ITTO940224A0 publication Critical patent/ITTO940224A0/it
Priority to EP95100541A priority patent/EP0673798A1/en
Priority to JP7052402A priority patent/JPH07257207A/ja
Publication of ITTO940224A1 publication Critical patent/ITTO940224A1/it
Application granted granted Critical
Publication of IT1273084B publication Critical patent/IT1273084B/it

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Classifications

    • 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
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B19/00—Wheels not otherwise provided for or having characteristics specified in one of the subgroups of this group
    • B60B19/10—Wheels not otherwise provided for or having characteristics specified in one of the subgroups of this group with cooling fins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
    • B60G17/0152—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit
    • B60G17/0157—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the action on a particular type of suspension unit non-fluid unit, e.g. electric motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G3/00—Resilient suspensions for a single wheel
    • B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
    • B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
    • B60G3/26—Means for maintaining substantially-constant wheel camber during suspension movement ; Means for controlling the variation of the wheel position during suspension movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/006—Attaching arms to sprung or unsprung part of vehicle, characterised by comprising attachment means controlled by an external actuator, e.g. a fluid or electrical motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/22—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
    • 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
    • B60L50/52—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by DC-motors
    • 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
    • B60L50/62—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 charged by low-power generators primarily intended to support the batteries, e.g. range extenders
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
    • B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
    • B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
    • B60T1/065—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels employing disc
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D17/00—Means on vehicles for adjusting camber, castor, or toe-in
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/003—Couplings; Details of shafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/10—Independent suspensions
    • B60G2200/14—Independent suspensions with lateral arms
    • B60G2200/144—Independent suspensions with lateral arms with two lateral arms forming a parallelogram
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/10—Independent suspensions
    • B60G2200/14—Independent suspensions with lateral arms
    • B60G2200/156—Independent suspensions with lateral arms wishbone-type arm formed by two links defining a virtual apex
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/40—Indexing codes relating to the wheels in the suspensions
    • B60G2200/44—Indexing codes relating to the wheels in the suspensions steerable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/40—Indexing codes relating to the wheels in the suspensions
    • B60G2200/46—Indexing codes relating to the wheels in the suspensions camber angle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/40—Type of actuator
    • B60G2202/42—Electric actuator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/40—Type of actuator
    • B60G2202/44—Axial actuator, e.g. telescopic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/40—Type of actuator
    • B60G2202/442—Rotary actuator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/15—Mounting of subframes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/18—Mounting of vehicle engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/421—Pivoted lever mechanisms for mounting suspension elements, e.g. Watt linkage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/422—Links for mounting suspension elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/43—Fittings, brackets or knuckles
    • B60G2204/4302—Fittings, brackets or knuckles for fixing suspension arm on the vehicle body or chassis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/011—Modular constructions
    • B60G2206/0114—Independent suspensions on subframes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/60—Subframe construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2300/00—Indexing codes relating to the type of vehicle
    • B60G2300/50—Electric vehicles; Hybrid vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00—Indexing codes relating to the regulated action or device
    • B60G2500/20—Spring action or springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00—Indexing codes relating to the regulated action or device
    • B60G2500/30—Height or ground clearance
    • 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
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
    • B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0046—Disposition of motor in, or adjacent to, traction wheel the motor moving together with the vehicle body, i.e. moving independently from the wheel axle
    • 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
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0061—Disposition of motor in, or adjacent to, traction wheel the motor axle being parallel to the wheel axle
    • 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
    • B60L2220/40—Electrical machine applications
    • B60L2220/46—Wheel motors, i.e. motor connected to only one wheel
    • 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
    • B60L2220/50—Structural details of electrical machines
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D2055/0004—Parts or details of disc brakes
    • F16D2055/0037—Protective covers
    • 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
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Power Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Motor Power Transmission Devices (AREA)
  • Control Of Multiple Motors (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Control Of Electric Motors In General (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Description

DESCRIZIONE dell’invenzione industriale dal titolo: "Unità motrice per veicoli elettrici".
La presente invenzione si riferisce ad un’unità motrice per veicoli elettrici in cui ciascuna ruota del veicolo è azionata da un proprio motore elettrico tramite un albero di comando.
Lo scopo principale dell’invenzione è quello di realizzare un’unità motrice molto compatta, avente in particolare un ridotto ingombro in senso trasversale.
Questo scopo viene realizzato grazie alla caratteristica che forma oggetto della rivendicazione 1.
Ulteriori caratteristiche vantaggiose dell'invenzione formano oggetto delle rivendicazioni 2 a 10.
L’invenzione verrà ora descritta con riferimento ai disegni annessi, forniti a puro titolo di esempio non limitativo, in cui:
la figura 1 illustra schematicamente in elevazione e parzialmente in sezione un’unità motrice secondo la presente invenzione,
la figura 2 è una vista prospettica esplosa di un particolare della figura 1,
la figura 3 è una vista prospettica di un altro particolare della figura 1,
la figura 4 è una vista schematica laterale secondo la freccia IV della figura 1, e
la figura 5 è una sezione trasversale in maggiore scala secondo la linea V-V della figura 4.
Nella figura 1, con 1 è indicato un motore elettrico che tramite un albero di comando 2 aziona una ruota sterzante 3 di un autoveicolo, ciascuna ruota del quale è azionata da un'unità motrice del tipo illustrato nella figura 1. La sterzatura della ruota 3 è comandata, nell’esempio illustrato, da una cremagliera 35 servoassistita elettricamente della quale è stata illustrata soltanto la parte terminale.
Il motore elettrico 1 è azionato da una fonte di energia non illustrata,preferibilmente costituita da un generatore elettrico azionato da un motore termico quale ad esempio una turbina a gas.
Nell’esempio illustrato, il motore elettrico 1 è disposto inferiormente all’asse di rotazione della ruota 3 in modo da contribuire all’abbassamento del baricentro del veicolo. Ovviamente, a seconda delle esigenze, il motore potrebbe essere collocato in altre posizioni.
Il motore elettrico 1 comprende uno statore la ed un rotore lb. Il rotore Ib presenta una cavità centrale assiale 4 all'interno della quale è alloggiato un giunto G per la trasmissione del moto all'albero 2 di comando della ruota 3.
Il giunto G è di un tipo per se noto, atto a consentire spostamenti assiali dell'elemento condotto. Nell’esempio illustrato schematicamente nella figura 2 il giunto G comprende un perno trasversale 5 portato dall'estremità interna dell'albero di comando 2 ed avente due estremità sporgenti 6 che sono montate girevoli in corrispondenti fori 7 ricavati in due cuscinetti sostanzialmente parallelepipedi 8 montati scorrevoli in due scanalature diametralmente opposte 9 ricavate nello spessore della parete interna della cavità 4 del rotore.
La disposizione del giunto G all'interno della cavità 4 del rotore cavo lb consente di ridurre le dimensioni trasversali dell'unità motrice che risulta pertanto molto compatta.
Il rotore lb del motore elettrico 1 presenta alla sua estremità rivolta verso la ruota una flangia anulare sporgente 10 alla quale è fissato il mozzo del disco 11 di un freno a disco indicato nel suo insieme con 12. Questa soluzione consente di impiegare freni a disco aventi ridotte dimensioni in senso radiale.
Il motore elettrico 1 si estende attraverso l'apertura inferiore 13a di un elemento di sostegno 13 destinato ad essere fissato alla struttura portante dell’autoveicolo, non illustrata nei disegni.
All'elemento di sostegno 13 sono articolate le estremità interne dei bracci superiore 14 ed inferiore 15 di una sospensione a quadrilatero articolato. Le estremità interne dei bracci 14 e 15 sono articolate al montante 16 di sostegno della ruota 3 intorno a perni rispettivamente 14a e 15a.
Il braccio superiore 14 è conformato a T e presenta una traversa 14b che è articolata a ciascuna delle sue estremità tramite perni 18 a due piastre sostanzialmente triangolari 19. Ciascuna piastra 19 è articolata tramite un perno 20 ad una mensola 13b dell’elemento di sostegno 14.
A ciascuna piastra 19 è inoltre articolata intorno ad un perno 21 l'estremità di un dispositivo di controllo attivo della campanatura (camber) della ruota 3.
Il braccio superiore 14 porta inoltre un’appendice centrale 23 inclinata verso il basso alla quale è articolata intorno ad un perno 23a l’estremità di un dispositivo 24 di controllo degli scuotimenti della sospensione, che è attivo nei riguardi del molleggio, dello smorzamento e dell’altezza da terra.
Convenientemente i due dispositivi attivi di controllo 22 e 24 fanno parte di un sistema per l'ottimizzazione automatica del comportamento dell’autoveicolo basato sul rilevamento delle impronte dei pneumatici in conformità al brevetto italiano n.
1.223.919 della stessa Richiedente.
Il montante 16 della ruota è costituito da due parti 25, 26 fra lpro collegate in modo smontabile che definiscono fra loro una camera 27 nella quale è alloggiato un ruotismo riduttore interposto fra l'albero di comando 2 ed un mozzo cavo 28 della ruota, sopportato in modo girevole nel suddetto montante 16.
La cavità del mozzo 28 è preferibilmente munita di alettature elicoidali 28a a scopo di ventilazione.
Il riduttore comprende un pignone 30 che riceve il moto dall’albero di comando 2 tramite un giunto omocinetico 29 ed ingrana con una ruota dentata 31 calettata sulla superficie esterna del mozzo cavo 28 della ruota.
La superficie esterna del mozzo cavo 28 della ruota 3 presenta una flangia centrale 32 alla quale è fissata la ruota 3.
Come illustrato nella figura 4 e 5 la ruota 3 è munita di aperture di ventilazione 33 ed in corrispondenza di ciascuna apertura 33 è fissata alla ruota, dopo la sua formatura ad esempio per stampaggio o pressofusione, una paletta di ventilazione 34.
Il fissaggio della paletta 34 alla ruota 3 può essere effettuato ad esempio per incollatura.
Il fatto che la paletta sia riportata sulla ruota dopo la fabbricazione di quest’ultima, consente di orientare le palette di ciascuna ruota in modo da ottenere uguali caratteristiche di ventilazione nelle ruote situate sui due lati del veicolo.
In particolare nella figura 4 è illustrata nella parte superiore una paletta 34 applicata su una ruota destinata all'impiego sul lato destro del veicolo e nella parte inferiore della figura 4 è illustrata una paletta applicata su una ruota destinata all'impiego sul lato sinistro dell'autoveicolo.
Questa caratteristica consente di ottenere ruote aventi un’efficace azione ventilante, identica sui due lati del veicolo, senza usare due stampi differenti, uno per le ruote del lato sinistro ed una per le ruote del lato destro.

Claims (10)

  1. RIVENDICAZIONI 1. Unità motrice per veicoli elettrici, in cui ciascuna ruota del veicolo (3) è azionata da un proprio motore elettrico (1) tramite un albero di comando (2), caratterizzata dal fatto che ciascun motore elettrico (1) è cavo ed alloggia, all’interno di una cavità centrale assiale (4) ricavata nel rotore (lb), un giunto (G) per la trasmissione del moto all'albero di comando (2) della ruota (3).
  2. 2. Unità motrice secondo la rivendicazione 1, caratterizzata dal fatto che al rotore (lb) del motore elettrico (1) è fissato il disco (10) di un freno a disco (11).
  3. 3. Unità motrice secondo la rivendicazione 2, caratterizzata dal fatto che il rotore (lb) del motore elettrico (1) presenta, alla sua estremità rivolta verso la ruota (3), una flangia anulare sporgente (10) alla quale è fissato un mozzo del suddetto disco (11) .
  4. 4. Unità motrice secondo la rivendicazione 1, caratterizzata dal fatto che il motore elettrico si estende attraverso un elemento di sostegno (13) al quale sono articolate le estremità interne dei due bracci superiore (14) ed inferiore (15) di una sospensione a quadrilatero articolato, le estremità esterne di tali bracci (14, 15) essendo articolate al montante (16) di sostegno della ruota (3).
  5. 5. Unità motrice secondo la rivendicazione 4, caratterizzato dal fatto che la sospensione è dotata di un controllo attivo sia nei riguardi dello scuotimento sia nei riguardi della campanatura (camber) della ruota.
  6. 6. Unità motrice secondo la rivendicazione 4, caratterizzata dal fatto che il montante (16) della ruota (3) è costituito da due parti (25, 26) fra loro collegate in modo smontabile che definiscono fra loro una camera (27) nella quale è alloggiato un ruotismo riduttore (30, 31) interposto fra l’albero di comando (2) ed un mozzo cavo (28) della ruota (3), sopportato in modo girevole nel suddetto montante (16).
  7. 7. Unità motrice secondo la rivendicazione 6, caratterizzata dal fatto che l’estremità interna dell'albero di comando (2) aziona, tramite un giunto omocinetico (29) un pignone (30) che ingrana con una ruota dentata (31) calettata sulla superficie esterna del mozzo cavo (28) della ruota (3).
  8. 8. Unità motrice secondo le rivendicazioni 6 e 7, caratterizzata dal fatto che ha superficie interna della cavità del mozzo cavo (28) è munita di alettature elicoidali (28a) a scopo di ventilazione.
  9. 9. Unità motrice secondo le rivendicazioni 6 a 8, caratterizzata dal fatto che la superficie esterna del mozzo cavo (28) della ruota (3) presenta una flangia centrale (32) alla quale è fissata la ruota (3).
  10. 10. Unità motrice secondo la rivendicazione 7, caratterizzata dal fatto che la ruota è munita di aperture di ventilazione (33) e che in corrispondenza di ciascuna apertura (33) è fissata, dopo la fabbricazione della ruota, una paletta di ventilazione (34), orientata in modo tale da ottenere uguali, caratteristiche di ventilazione nelle ruote situate sui due lati del veicolo. Il tutto sostanzialmente come descritto ed illustrato e per gli scopi specificati.
ITTO940224A 1994-03-25 1994-03-25 Unita' motrice per veicoli elettrici IT1273084B (it)

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EP95100541A EP0673798A1 (en) 1994-03-25 1995-01-17 A drive unit for electric vehicles
JP7052402A JPH07257207A (ja) 1994-03-25 1995-03-13 電気自動車の駆動装置

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FR2941403B1 (fr) * 2009-01-29 2012-10-19 Peugeot Citroen Automobiles Sa Vehicule automobile comportant une motorisation principale du train avant et une motorisation complementaire du train arriere
DE102010029071A1 (de) * 2010-05-18 2011-11-24 Bayerische Motoren Werke Aktiengesellschaft Radantrieb für ein Fahrzeug
CN102785566B (zh) * 2012-07-30 2015-04-15 同济大学 用于转向轮的一体化双横臂悬架轮边电驱动系统
DE102017205835A1 (de) * 2017-04-05 2018-10-11 Robert Bosch Gmbh Fahrwerkvorrichtung für ein Fahrzeug
DE102017111779A1 (de) * 2017-05-30 2018-12-06 Horsch Leeb Application Systems Gmbh Einzelradaufhängung für ein lenkbares Rad
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DE102018130021A1 (de) * 2018-11-27 2020-05-28 Bayerische Motoren Werke Aktiengesellschaft Antriebsanordnung eines Kraftfahrzeugs mit einem Elektromotor
IT202300001443A1 (it) * 2023-01-31 2024-07-31 Mario Burigo Veicolo equipaggiato con moduli intercambiabili per il controllo attivo della rotazione di ogni ruota e della posizione ed orientamento del suo asse
DE102023114172A1 (de) * 2023-05-30 2024-12-05 Süddeutsche Gelenkscheibenfabrik Gesellschaft mit beschränkter Haftung & Co. KG. Antriebsanordnung für Fahrzeuge
DE102023125772A1 (de) * 2023-09-22 2025-03-27 Bayerische Motoren Werke Aktiengesellschaft Elektrische Antriebseinrichtung für ein Fahrzeug sowie Fahrzeug
DE102024118873A1 (de) 2024-07-03 2026-01-08 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Achsvorrichtung und Fahrzeug mit Achsvorrichtung

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IT1273084B (it) 1997-07-04

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