GB2270807A - Battery powered electric vehicle - Google Patents

Battery powered electric vehicle Download PDF

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Publication number
GB2270807A
GB2270807A GB9219805A GB9219805A GB2270807A GB 2270807 A GB2270807 A GB 2270807A GB 9219805 A GB9219805 A GB 9219805A GB 9219805 A GB9219805 A GB 9219805A GB 2270807 A GB2270807 A GB 2270807A
Authority
GB
United Kingdom
Prior art keywords
battery
motor
electric motor
alternator
powered
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.)
Withdrawn
Application number
GB9219805A
Other versions
GB9219805D0 (en
Inventor
Stanley Tattersley
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB9219805A priority Critical patent/GB2270807A/en
Publication of GB9219805D0 publication Critical patent/GB9219805D0/en
Publication of GB2270807A publication Critical patent/GB2270807A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
    • H02J7/1415—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with a generator driven by a prime mover other than the motor of a vehicle
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in 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
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Abstract

The vehicle has a traction battery 15 to power a traction motor 11, and alternator 13, 14 normally driven by an auxiliary motor 12 powered by an auxiliary battery 16 to charge batteries which power appliances such as headlights. If the auxiliary battery 16 is in a low charge state, it may be recharged by alternator 14 driven by auxiliary motor 12 powered by the traction battery 15. If the traction battery 15 is in a low charge state, it may be recharged by alternator 13 driven by auxiliary motor 12 powered by the auxiliary battery 16. <IMAGE>

Description

ELECTRIC MOTOR This invention relates to an electric-motor of the type used to power a vehicle, such as a car.
A problem with known electric motors for vehicles is that the batteries from which they are powered require frequent recharging. This means that it is not possible to make long journeys in a vehicle having an electric motor.
Often a vehicle will have a main battery for powering a main motor which is used to run the car and a subsidiary battery for running a subsidiary motor, used to drive alternators. The alternators charge the subsidiary batteries which power electrical appliances such as car head lights. If one or more such appliances is left on, the main or subsidiary battery may run down, thus requiring charging before the vehicle may embark on or continue a journey.
According to the invention there is provided a motor system comprising: a first electric motor powered by a first battery; a second electric motor powered by a second battery; a first alternator driven by a motor for charging the first battery; and a second alternator driven by a motor for charging the second battery.
By means of the present invention, it is possible to make a long journey in a vehicle which is powered by an electric motor.
Under normal running conditions, the first electric motor is powered by the first battery and the second electric motor is powered by the second battery. The first electric motor may be used, for example, to run the car and the second electric motor may be used, for example, to drive the alternators. If the batteries need charging the second electric motor drives the first and second alternator. The first alternator charges the first battery, and the second alternator charges the second battery.
Preferably the system further comprises a three way switch for allowing the system to be switched between a running mode, a first charging mode in which the first battery may be recharged, and a second charging mode in which the second battery may be recharged. Before the switch can be switched into the first or second charging modes, the vehicle must be stationary and the first and second motors and all electric appliances must be switched off.
The first electric motor is the main electric motor and the second electric motor is an auxiliary motor.
The invention will now be further described by way of example only with reference to the accompanying drawing in which Figure 1 is a schematic representation of the electric motor according to the present invention.
Referring to Figure 1 an electric motor according to the present invention is designated generally by the reference numeral 10. The electric motor system according to the invention comprises a first electric motor 11 and a second electric motor 12. Associated with the system 10 is a first alternator 13 and a second alternator 14. The first electric motor 11 is supplied with power by battery 15 and the second electric motor 12 is supplied with power by battery 16.
The motor system 10 is particularly suitable for use in a vehicle such as a car. The motor 11 will be used to run the vehicle and the motor 12 will be used to drive the alternators which charge the batteries which power electric appliances such as head lights. The system 10 further comprises a three way switch 18. When the car is running normally the switch will be in an off position.
In a situation where battery 16 runs down, the switch 18 will be switched into a first position in which battery 15 powers the small motor 12, normally powered by battery 16. The alternator 14 will then be used to recharge battery 16. The alternator 14 is driven by the small motor 12.
Similarly, if battery 15 runs down, the switch is switched into a second position in which battery 16 will run the small electric motor 12, which drives an alternator 13 which in turn charges battery 15.
In an alternative embodiment a simple on/off switch may be inserted between battery 16 and motor 12 and battery 15 and motor 11. This will allow the driver to disconnect the motor from the alternator if either of the batteries 15, 16 is already sufficiently charged. This will avoid overcharging of batteries 15, 16 while the car is being driven.
Two examples of how the electric motor of the present invention may operate will now be described.
Example 1 If battery 15 needs charging the switch 18 is switched into a second position for battery 16 to supply power to electric motor 12 for the alternators to charge both batteries.
Battery 15 will supply power to electric motor 11 to run the car, and battery 16 will power electric motor 12 and electric appliances.
Example 2 If battery 16 needs charging the switch 18 will be switched into a first position, where battery 15 will supply power to both electric motors, and battery 16 will be used only when it has been sufficiently recharged.
By means of the present invention, if a battery of a vehicle runs down, it is possible to make a further journey to reach a place such as a garage where the batteries may be recharged by an independent source.

Claims (4)

1. A motor system comprising: a first electric motor powered by a first battery; a second electric motor powered by a second battery; a first alternator driven by a motor for charging the first battery; and a second alternator driven by a motor for charging the second battery.
2. A system according to claim 1 further comprising a three way switch for allowing the system to be switched between a running mode, a first charging mode in which the first battery may be re-charged, and a second charging mode in which the second battery may be re-charged.
3. A system according to claim 1 or claim 2 wherein the first electric motor is the main electric motor and the second electric motor is an auxiliary motor.
4. A system substantially as hereinbefore described with reference to the accompanying drawings.
GB9219805A 1992-09-18 1992-09-18 Battery powered electric vehicle Withdrawn GB2270807A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9219805A GB2270807A (en) 1992-09-18 1992-09-18 Battery powered electric vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9219805A GB2270807A (en) 1992-09-18 1992-09-18 Battery powered electric vehicle

Publications (2)

Publication Number Publication Date
GB9219805D0 GB9219805D0 (en) 1992-10-28
GB2270807A true GB2270807A (en) 1994-03-23

Family

ID=10722152

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9219805A Withdrawn GB2270807A (en) 1992-09-18 1992-09-18 Battery powered electric vehicle

Country Status (1)

Country Link
GB (1) GB2270807A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0808738A1 (en) * 1995-09-18 1997-11-26 Seiko Epson Corporation Safety mechanism for electric vehicle
FR2810166A1 (en) * 2000-06-13 2001-12-14 Serge Mello Battery control equipment for supplying electric vehicle drive motor, comprises hub mounted generators which are used to charge one of a pair of drive batteries and also a third battery
US6914341B1 (en) * 2003-07-29 2005-07-05 Mcintyre Stephen Rotational inertia aided electric generator
US9627951B2 (en) 2012-06-23 2017-04-18 Kevin Schawitsch Electric power system with regeneration

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB371538A (en) * 1931-03-07 1932-04-28 Chance Brothers & Co Ltd Improvements relating to electric current generating systems
GB1570107A (en) * 1976-05-26 1980-06-25 Peugeot Apparatus for charging an auxiliary battery of an electrically-propelled vehicle
US4689531A (en) * 1985-07-01 1987-08-25 Ewers, And Willis Electric regeneration apparatus and method for driving a load

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB371538A (en) * 1931-03-07 1932-04-28 Chance Brothers & Co Ltd Improvements relating to electric current generating systems
GB1570107A (en) * 1976-05-26 1980-06-25 Peugeot Apparatus for charging an auxiliary battery of an electrically-propelled vehicle
US4689531A (en) * 1985-07-01 1987-08-25 Ewers, And Willis Electric regeneration apparatus and method for driving a load

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0808738A1 (en) * 1995-09-18 1997-11-26 Seiko Epson Corporation Safety mechanism for electric vehicle
EP0808738B1 (en) * 1995-09-18 2003-06-11 Seiko Epson Corporation Safety mechanism for electric vehicle
FR2810166A1 (en) * 2000-06-13 2001-12-14 Serge Mello Battery control equipment for supplying electric vehicle drive motor, comprises hub mounted generators which are used to charge one of a pair of drive batteries and also a third battery
WO2001097361A1 (en) * 2000-06-13 2001-12-20 Mello, Serge Device for electric supply to a battery-powered electric vehicle drive motor
US6914341B1 (en) * 2003-07-29 2005-07-05 Mcintyre Stephen Rotational inertia aided electric generator
US9627951B2 (en) 2012-06-23 2017-04-18 Kevin Schawitsch Electric power system with regeneration

Also Published As

Publication number Publication date
GB9219805D0 (en) 1992-10-28

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)