GB2381675A - Electronic control of auxiliary devices - Google Patents

Electronic control of auxiliary devices Download PDF

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Publication number
GB2381675A
GB2381675A GB0126202A GB0126202A GB2381675A GB 2381675 A GB2381675 A GB 2381675A GB 0126202 A GB0126202 A GB 0126202A GB 0126202 A GB0126202 A GB 0126202A GB 2381675 A GB2381675 A GB 2381675A
Authority
GB
United Kingdom
Prior art keywords
actuator
transistor
motor
assembly
series
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.)
Granted
Application number
GB0126202A
Other versions
GB2381675B (en
GB0126202D0 (en
Inventor
Peter Brereton
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.)
Penny & Giles Drives Technolog
Original Assignee
Penny & Giles Drives Technolog
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 Penny & Giles Drives Technolog filed Critical Penny & Giles Drives Technolog
Priority to GB0325004A priority Critical patent/GB2390943B/en
Priority to GB0126202A priority patent/GB2381675B/en
Publication of GB0126202D0 publication Critical patent/GB0126202D0/en
Priority to US10/055,462 priority patent/US6593711B2/en
Publication of GB2381675A publication Critical patent/GB2381675A/en
Application granted granted Critical
Publication of GB2381675B publication Critical patent/GB2381675B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/68—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more dc dynamo-electric 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
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/02—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles characterised by the form of the current used in the control circuit
    • B60L15/08—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles characterised by the form of the current used in the control circuit using pulses
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/03—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors
    • H02P7/04—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors by means of a H-bridge circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
    • H02P7/29—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
    • 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

Abstract

A motorised assembly comprises first and second bridge circuits 2,4 across which respective drive motors 30,32 are connected. At least one auxiliary motor or actuator 34 is connected between one arm 8 of the first bridge circuit 2 and one arm 10 of the second bridge circuit 4 and electronic control means 45 are arranged to control the operation the drive motors 30,32 and the or each auxiliary motor or actuator 34 by operating electronic switches 14-28 of the bridge circuits 2,4 and an electronic switch 40 connected in series with the or each auxiliary motor or actuator 34. Such an arrangement obviates the requirement for independent control circuitry for controlling the operation of the or each auxiliary motor or actuator, resulting in a reduction in the overall cost of the motorised assembly.

Description

Electronic Control Arrangement The present invention relates to an
electronic control arrangement wherein existing electronic motor control circuitry of a motorised assembly may be used to control one or more auxiliary devices.
5 It is common practice to control the operation of a pair of electric motors, used to drive respective wheels of a motorised wheel-chair assembly, by varying the pulse width of a modulated signal applied to each motor.
Each motor is typically connected across a transistor lo bridge circuit, the transistors of which may be selectively switched to vary the direction in which the motor is rotated.
It is also common practice to provide such motorised wheel-chairs with further motors or other actuators, the operation of these devices being controlled by further 15 electronic control circuitry, independent of that of the two main drive motors.
It is an object of the present invention to reduce the overall amount of electronic control circuitry required to control the operation of two main drive motors and at least one 20 additional motor or other actuator of a motorized assembly.
In accordance with the present invention, there is provided a motorised assembly comprising: first and second bridge circuits, the two arms of each bridge circuit each comprising a first and a second electronic 25 switch connected in series; a respective drive motor connected between the two arms of each bridge circuit, at points intermediate the electronic switches of each of the two arms; an auxiliary motor or actuator connected between one 30 arm of the first bridge circuit and one arm of the second bridge circuit, at points intermediate the electronic switches of each of the two arms and in series with at least one electronic switch; and electronic control means arranged to operate the
electronic switches to selectively control the operation of the drive motors and the auxiliary motor or actuator.
A third bridge circuit is thus effectively formed by said one arm of each of the first and second bridge circuits, 5 the switch connected in series with the auxiliary motor or actuator serving as a means by which to electrically isolate the auxiliary motor or actuator, when one or both of the drive motors is/are being operated.
It will be appreciated that such an arrangement 10 obviates the requirement for independent control circuitry for controlling the operation of the auxiliary motor or actuator, resulting in a reduction in the overall cost of the motorised assembly. Preferably the motorised assembly comprises a motorised 15 wheel-chair assembly, respective traction wheels of which are driven by the drive motors.
Preferably each electronic switch of the first and second bridge circuits comprises a transistor, which is preferably a Field Effect Transistor (FET) and is most
20 preferably a Metal Oxide Semiconductor Field Effect Transistor
(MOSFET).
Preferably the electronic switch connected in series with the auxiliary motor or actuator comprises a transistor, which is preferably a Field Effect Transistor (FET) and is most
25 preferably a Metal Oxide Semiconductor Field Effect Transistor
(MOSFET).
The auxiliary motor or actuator is preferably connected in series with and between two FET transistors. Preferably electronic control means of the assembly are arranged to 30 operate the auxiliary motor or actuator by applying a control signal to the gates of each of the two FET transistors associated therewith and then switching the transistors of the first and second bridge circuits to apply a pulse-width modulated signal to one or other side of the auxiliary motor 35 or actuator and to connect the opposite side of the auxiliary ._ I-,,,,__.,,. Il__ll Illa_l l Ill nil I HI Illll Ill I IN llell 11 11 lo 11,11111 111515151 1!!1111 111 1
motor or actuator to ground.
A bootstrap capacitor is preferably connected between the source and gate of each of the transistors connected in series with the auxiliary motor or actuator, to ensure that the 5 transistor via which the pulse-width modulated signal is applied will remain in a conducting state whilst the pulse-
width modulated signal continues to be applied.
A resistor is preferably also connected between the source and gate of each of the transistors connected in series 10 with the auxiliary motor or actuator, to provide a discharge path for its parallel capacitance, when a control signal ceases to be applied to the gate of the transistor, to arrest conduction between the drain and source of the transistor.
Also in accordance with the present invention, there is 15 provided an electronic control arrangement for a motorised assembly and comprising: first and second bridge circuits, the two arms of each bridge circuit each comprising a first and a second electronic switch connected in series; 20 a further electronic switch arranged to be connected in series with a motor or actuator between one arm of the first bridge circuit and one arm of the second bridge circuit, at points intermediate the electronic switches of each of the two arms; and 25 electronic control means arranged to selectively operate the electronic switches.
The control arrangement may thus be used to selectively control the operation of respective drive motors, connected between the two arms of each bridge circuit, and of an 30 auxiliary motor or actuator, connected in series with the further switch, between said one arm of the first and second bridge circuits.
Further in accordance with the present invention, there is provided a switching arrangement for connecting a motor or 35 actuator to a pulsewidth modulated supply, and comprising:
a Field Effect Transistor (FET) arranged to be
connected in series with the motor or actuator; and a capacitor connected between the gate and source of the transistor, the capacitor forming a bootstrapped gate 5 supply for maintaining conduction between the drain and source of the transistor whilst the pulse-width modulated supply is applied to the motor or actuator thereby.
Preferably the transistor comprises one of a pair of Field Effect Transistors (FETs), between and in series with
lo which a motor or actuator may be connected, each transistor having a respective bootstrap capacitor connected between its gate and source for maintaining conduction of that transistor whilst a pulse-width modulated supply is applied to the motor or actuator thereby.
15 Embodiments of the present invention will now be described by way of examples only and with reference to the accompanying drawings, in which: Figure 1 is a circuit diagram of first embodiment of control arrangement in accordance with the present invention; 20 and Figure 2 is a circuit diagram of second embodiment of control arrangement in accordance with the present invention.
Referring to Figure 1 of the drawings, an electronic control arrangement for a motorised wheel-chair assembly is 25 shown, comprising first and second bridge circuits 2,4, the two arms 6-12 of each bridge circuit 2,4 each comprising a first and a second MOSFET transistor switch 14-28 connected in series. A respective drive motor 30,32 is connected between the 30 two arms 6-12 of each bridge circuit 2,4, at points intermediate the transistor switches 14-28 of each of the two arms, such that the transistors may be selectively switched to vary the direction in which each motor 30,32 is rotated and to control the speed of rotation of each motor 30,32 by pulse 35 width modulating the supply thereto.
_,_,,,_ 14 1114. 11. 11 1. 1 1 81 1111 II'. 11 1 11,1, 1 1111!1 1 111 111111, 1111111 11151 11 1 1111111111 1115 1
A plurality of auxiliary servo-motors 34-38 are connected between one arm 8 of the first bridge circuit 2 and one arm 10 of the second bridge circuit 4, at points intermediate the electronic switches 18,20,22,24 of each of the 5 two arms 8,10, each servo-motor 34-38 being connected in series with an electronic relay-switch 40-44.
A third bridge circuit, comprising the transistor switches 18,20,22 and 24, is thus effectively formed between one arm 8,10 of each of the first and second bridge circuits 10 2,4, with the relay-switches 40-44 serving as a means by which to electrically isolate their associated servo-motors 34-38, when either one or both of the drive motors 30,32 is/are being operated. Electronic control means 45 are arranged to operate the 15 transistor switches 14-28 of the two bridge circuits 2,4 and the relayswitches 40-44, to selectively control the operation of the drive motors 30,32 and the servo-motors 34-38.
More specifically, the electronic control means 45 are arranged such that, when one of the servo-motors 34-38 is to 20 be operated, its associated relay-switch 40-44 is first closed and the transistors 18-24 forming the third bridge circuit then selectively switched to vary the direction in which the servo-
motor 34-38 is operated and to control the speed of operation of the servo-motor 34-38 by pulse-width modulating the supply 25 thereto. Meanwhile, to prevent the two drive motors 30,32 from operating, the transistor switches 14,16,26,28 of the opposite arms 6,12 of each of the first and second bridge circuits 2,4 are switched, either to produce a zero potential difference across each of the drive motors 30,32 or, more preferably, to 30 electrically isolate the side of the motor to which they are connected. In the alternative embodiment of Figure 2, each auxiliary servo-motor 34-38 is connected in series with and between two MOSFET transistors 46-56. To operate one of the 35 servo-motors, e.g. 34, a 12 volt control signal is applied to
the gates of each of the transistors 46,48 associated with that servomotor, and the transistors 18-24 of the third bridge circuit switched, as required, to apply a pulse-width modulated, 24 volt supply signal to one side of the servo-motor 5 (e.g via transistorl8) and to connect the opposite side of the motor to ground (e.g. via transistor 24).
A 100 nanofarad bootstrap capacitor 58-68 connected between the source and gate of each transistor ensures that the transistor via which the modulated signal is applied will 10 remain in a conducting state whilst the pulse-width modulated supply signal continues to be applied.
A 100 kilohm resistor 70-80, also connected between the source and gate of each transistor 46-56, provides a discharge path for its parallel capacitance 58-68, when a control signal 15 ceases to be applied thereby, to arrest conduction between the drain and source of the transistor.
It will be appreciated that whilst a control arrangement comprising MOSFETs has been described, other types of electronic switch may instead be used to provide one or more 20 of the electronic switches of the arrangement, with the control circuitry re-configured appropriately, according to known practices. The control arrangements thus described obviates the requirement for independent control circuitry for controlling 25 the operation of the or each auxiliary servo-motor, thereby allowing the overall cost of a motorised assembly having both a pair of drive motors and one or more auxiliary motors to be reduced. _ _. __ _,,_,,..._,. i,.. r,, _!,] ', ' I_ 1 1181 11111 1 11 1111111 1 11 1111

Claims (1)

  1. Claims
    1) A motorised assembly comprising: first and second bridge circuits, the two arms of each bridge circuit each comprising a first and a second electronic 5 switch connected in series; a respective drive motor connected between the two arms of each bridge circuit, at points intermediate the electronic switches of each of the two arms; an auxiliary motor or actuator connected between one 10 arm of the first bridge circuit and one arm of the second bridge circuit, at points intermediate the electronic switches of each of the two arms and in series with at least one electronic switch; and electronic control means arranged to operate the 15 electronic switches to selectively control the operation of the drive motors and the auxiliary motor or actuator.
    2) A motorised assembly as claimed in Claim 1, comprising a motorised wheel-chair assembly, respective traction wheels 20 of which are driven by the drive motors.
    3) A motorised assembly as claimed in Claim 1 or Claim 2, wherein each electronic switch of the first and second bridge circuits comprises a transistor 4) A motorised assembly as claimed in Claim 3, wherein 25 said transistor comprises a Field Effect Transistor (PET).
    5) A motorised assembly as claimed in Claim 4, wherein said Field Effect Transistor (FET) comprises a Metal Oxide
    Semiconductor Field Effect Transistor (MOSFET).
    6) A motorised assembly as claimed in any preceding claim, 30 wherein the electronic switch connected in series with the
    auxiliary motor or actuator comprises a transistor.
    7) A motorized assembly as claimed in Claim 6, wherein said transistor comprises a Field Effect Transistor (FET).
    8) A motorized assembly as claimed in Claim 7, wherein 5 said Field Effect Transistor (FET) comprises a Metal Oxide
    Semiconductor Field Effect Transistor (MOSFET).
    9) A motorized assembly as claimed in Claim 7 or Claim 8, wherein the auxiliary motor or actuator is connected in series with and between two FET transistors.
    10 10) A motorized assembly as claimed in Claim 9, comprising electronic control means arranged to operate the auxiliary motor or actuator by applying a control signal to the gates of each of the two FET transistors associated therewith and then switching the transistors of the first and second bridge 15 circuits to apply a pulse-width modulated signal to one or other side of the auxiliary motor or actuator and to connect the opposite side of the auxiliary motor or actuator to ground.
    11) A motorized assembly as claimed in ClaimlO, wherein a bootstrap capacitor is connected between the source and gate 20 of each of the transistors connected in series with the auxiliary motor or actuator, to ensure that the transistor via which the pulse-width modulated signal is applied will remain in a conducting state whilst the pulse-width modulated signal continues to be applied.
    25 12) A motorised assembly as claimed in Claim 11, wherein a resistor is also connected between the source and gate of each of the transistors connected in series with the auxiliary motor or actuator, to provide a discharge path for its parallel capacitance, when a control signal ceases to be applied to the ....,._..,,,,, _.__.,--,,--_, i''.,_, i,,''''- ''' e'''.] ! _! 1 ' 1 11811 1 1! 18
    l gate of the transistor, to arrest conduction between the drain and source of the transistor.
    13) An electronic control arrangement for a motorised assembly and comprising: 5 first and second bridge circuits, the two arms of each bridge circuit each comprising a first and a second electronic switch connected in series; a further electronic switch arranged to be connected in series with a motor or actuator between one arm of the first 10 bridge circuit and one arm of the second bridge circuit, at points intermediate the electronic switches of each of the two arms; and electronic control means arranged to selectively operate the electronic switches.
    15 14) A switching arrangement for connecting a motor or actuator to a pulse-width modulated supply, and comprising: a Field Effect Transistor (FET) arranged to be
    connected in series with the motor or actuator; and a capacitor connected between the gate and source of 20 the transistor, the capacitor forming a bootstrapped gate supply for maintaining conduction between the drain and source of the transistor whilst the pulse-width modulated supply is applied to the motor or actuator thereby.
    15) A switching arrangement as claimed in Claim 14, wherein 25 the transistor comprises one of a pair of Field Effect
    Transistors (FETs), between and in series with which a motor or actuator may be connected, each transistor having a respective bootstrap capacitor connected between its gate and source for maintaining conduction between the drain and source 30 of the transistor whilst a pulse-width modulated supply is applied to the motor or actuator thereby.
    16) A motorised assembly substantially as herein described with reference to the accompanying drawings.
    17) An electronic control arrangement for a motorised assembly, the control arrangement being substantially as herein 5 described with reference to the accompanying drawings.
    18) A switching arrangement for connecting a motor or actuator to a pulsewidth modulated supply, the switching arrangement being substantially as herein described with reference to the accompanying drawings.
    À 11 11 '11 1 |1111!11 1511!! 1 1 1 111111111111111 8
GB0126202A 2001-10-31 2001-10-31 Electronic control arrangement Expired - Fee Related GB2381675B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB0325004A GB2390943B (en) 2001-10-31 2001-10-31 Switching arrangement
GB0126202A GB2381675B (en) 2001-10-31 2001-10-31 Electronic control arrangement
US10/055,462 US6593711B2 (en) 2001-10-31 2002-01-23 Electronic control arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0126202A GB2381675B (en) 2001-10-31 2001-10-31 Electronic control arrangement

Publications (3)

Publication Number Publication Date
GB0126202D0 GB0126202D0 (en) 2002-01-02
GB2381675A true GB2381675A (en) 2003-05-07
GB2381675B GB2381675B (en) 2003-12-24

Family

ID=9924921

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0325004A Expired - Fee Related GB2390943B (en) 2001-10-31 2001-10-31 Switching arrangement
GB0126202A Expired - Fee Related GB2381675B (en) 2001-10-31 2001-10-31 Electronic control arrangement

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0325004A Expired - Fee Related GB2390943B (en) 2001-10-31 2001-10-31 Switching arrangement

Country Status (2)

Country Link
US (1) US6593711B2 (en)
GB (2) GB2390943B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2429857A (en) * 2005-09-01 2007-03-07 Lear Corp Controlling multiple reversible DC motors by means of an array of FET switches
DE102010052045A1 (en) * 2010-11-23 2012-06-06 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt Drive arrangement in a motor vehicle

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7355358B2 (en) * 2003-10-23 2008-04-08 Hewlett-Packard Development Company, L.P. Configurable H-bridge circuit
DE102012204152B4 (en) 2012-03-16 2018-09-27 Conti Temic Microelectronic Gmbh Circuit arrangement for driving a motor group
CN104617754A (en) * 2015-01-30 2015-05-13 柳州市同进汽车零部件制造有限公司 Electric automobile power driving module
GB201620837D0 (en) * 2016-12-07 2017-01-18 Trw Ltd A Motor drive and control circuit for electric power steering
CN108150046A (en) * 2017-11-09 2018-06-12 柳州市绿创科技有限公司 Automobile-used door and window intelligent controlling device and control method

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Publication number Priority date Publication date Assignee Title
GB2273403A (en) * 1991-11-30 1994-06-15 Linde Ag Electric braking for vehicles with two parallel electric motors

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US4926307A (en) * 1986-10-15 1990-05-15 Yang Tai Her Polyphase a.c. motor supplied with power via d.c. power supply
JPH04172986A (en) * 1990-11-07 1992-06-19 Secoh Giken Inc High speed 3-phase dc motor
US5287046A (en) * 1992-05-13 1994-02-15 International Business Machines Corporation Method and system for actuator control for direct access storage devices
JP2000069796A (en) * 1998-06-10 2000-03-03 Asmo Co Ltd Stepping motor drive circuit and apparatus for driving the same
DE19846156C1 (en) * 1998-10-07 2000-07-27 Bosch Gmbh Robert Arrangement of a multi-phase converter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2273403A (en) * 1991-11-30 1994-06-15 Linde Ag Electric braking for vehicles with two parallel electric motors

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2429857A (en) * 2005-09-01 2007-03-07 Lear Corp Controlling multiple reversible DC motors by means of an array of FET switches
GB2429857B (en) * 2005-09-01 2008-05-21 Lear Corp System and method to provide power to a motor
DE102010052045A1 (en) * 2010-11-23 2012-06-06 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt Drive arrangement in a motor vehicle

Also Published As

Publication number Publication date
GB2381675B (en) 2003-12-24
GB0126202D0 (en) 2002-01-02
GB2390943A (en) 2004-01-21
US20030080700A1 (en) 2003-05-01
GB2390943B (en) 2004-03-10
GB0325004D0 (en) 2003-11-26
US6593711B2 (en) 2003-07-15

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732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20130215 AND 20130220

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20201031