WO1999004484A1 - D.c. motor with controlled or regulated rotational speed - Google Patents
D.c. motor with controlled or regulated rotational speed Download PDFInfo
- Publication number
- WO1999004484A1 WO1999004484A1 PCT/DE1998/001936 DE9801936W WO9904484A1 WO 1999004484 A1 WO1999004484 A1 WO 1999004484A1 DE 9801936 W DE9801936 W DE 9801936W WO 9904484 A1 WO9904484 A1 WO 9904484A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- motor
- speed
- characteristic
- speed control
- motor according
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
-
- 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
Definitions
- the invention is based on a DC motor, in particular a positioning motor in a motor vehicle, which is controlled or regulated in terms of speed, in particular via pulse width modulation, of the type defined in the preamble of claim 1.
- Such a DC motor which is controlled or regulated in terms of speed, in particular via pulse width modulation, is known, for example, as a positioning motor in a motor vehicle.
- the slope of the motor characteristic curve which is determined by the idling speed on the one hand and the blocking torque on the other hand, is essentially the characteristic that determines the size of the motor.
- a motor with a flat motor characteristic ie a high ratio of blocking torque to idling speed, is larger than a motor with a steep motor characteristic.
- the DC motor according to the invention with the characterizing features of claim 1 has the advantage that a larger motor with a flat motor characteristic can be realized by a small motor with a steep motor characteristic by suitable control.
- the motor is equipped with a steep motor characteristic, the winding of the motor being designed so that both a high idling speed and a high tightening torque are present, and that by means of speed control or speed control, in particular by Pulse width modulation, from the steep motor characteristic a flat motor characteristic is formed.
- the motor control takes place with a soft start and a simultaneous speed query.
- the speed control or speed control is carried out by parallel displacement of the engine characteristic.
- the speed control or speed control is carried out by parallel displacement of the engine characteristic.
- Speed control or speed regulation by switching from a high to a lower speed or vice versa include that the motor is provided with a position speed sensor and / or the electronics are built into the motor or are provided attached to it.
- the motor can also be equipped with an additional positioning function.
- the DC motor designed according to the invention can be provided as a longitudinal seat adjustment motor in a motor vehicle for entry aid with two speed levels.
- the DC motor designed according to the invention for the sunroof drive in a motor vehicle can be provided, it being operated at a reduced speed for manual positioning during the lifting movement of the sunroof and being operated at full speed and automatic positioning during normal opening .
- Fig. 1 shows schematically some different motor characteristics, the motor current and the speed are plotted against the moment on the one hand.
- Fig. 1 is above the moment M, given for example in Ncm, on the one hand the motor current I, given in amperes A, and on the other the speed n, specified in l / min, is plotted for various cases.
- the course of the current I increases with increasing torque M and the course of the speed n decreases with increasing torque M.
- a speed characteristic curve such as that shown in FIG. 1 is a flat motor characteristic curve and belongs to a large motor or is characteristic of one.
- the dashed line of a second motor characteristic curve 3 shows a steep motor characteristic curve which is a steep motor characteristic curve and belongs to a small motor or is characteristic of such a motor.
- the associated current characteristic 4 is also steep.
- the motor is equipped with a steep motor characteristic, as represented by the motor characteristic 3 in FIG. 1.
- the winding of the motor is designed so that there is both a high idling speed, for example about 6000 / min, and a high tightening torque.
- a flat motor characteristic curve similar to that denoted by 1, is formed from the steep motor characteristic curve 3 by means of and the speed control or speed control, which is carried out in particular by pulse width modulation.
- a second variant of a flattened motor characteristic curve 7 is shown in dotted lines in FIG. 1, which decreases only slightly with a branch of constant speed of approximately 2800 rpm from zero moment to approximately 18 Ncm and then at a higher moment in a second Branch runs approximately parallel to the steep engine characteristic curve 3, which was assumed.
- Such a motor characteristic curve 7 is of particular value, for example, when using the direct current motor for a hand drill, since the speed remains practically constant over a very considerable torque range.
- control can be set up so that a smooth start with speed query is carried out.
- the speed can be controlled by switching from a high to a lower speed or vice versa.
- the motor is provided with a position speed sensor.
- the electronics are built in or on in the motor grown him. It is also advantageously provided with an additional positioning function.
- the motor is provided as a longitudinal seat adjustment motor in a motor vehicle and is used for getting started with two different speed levels.
- the motor for the sunroof drive is provided in a motor vehicle. There it is operated at a reduced speed for manual and precise positioning during the lifting movement of the sunroof. At full speed and automatic positioning, it is then operated during normal opening.
- a small DC motor is therefore advantageously used and the winding is designed for a high idling speed with a high tightening torque.
- a motor with a steep speed characteristic is available.
- a flat motor characteristic curve or one with a special design is then realized from the electronic pulse width modulation and the speed control or speed regulation used in particular.
- Such an engine characteristic curve could otherwise only be realized with a correspondingly larger and heavier engine. If all of the hardware for the positioning function is already available, the additional effort required can be accomplished in a very meaningful way simply by means of changes in the software.
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Control Of Direct Current Motors (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98946234A EP0995259A1 (en) | 1997-07-14 | 1998-07-11 | D.c. motor with controlled or regulated rotational speed |
JP2000503592A JP2001510980A (en) | 1997-07-14 | 1998-07-11 | DC motor with open or closed loop control at rotational speed |
KR1020007000334A KR20010021771A (en) | 1997-07-14 | 1998-07-11 | D.C. motor with controlled or regulated rotational speed |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19730047.2 | 1997-07-14 | ||
DE19730047A DE19730047A1 (en) | 1997-07-14 | 1997-07-14 | DC motor, the speed of which is controlled or regulated |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999004484A1 true WO1999004484A1 (en) | 1999-01-28 |
Family
ID=7835602
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1998/001936 WO1999004484A1 (en) | 1997-07-14 | 1998-07-11 | D.c. motor with controlled or regulated rotational speed |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0995259A1 (en) |
JP (1) | JP2001510980A (en) |
KR (1) | KR20010021771A (en) |
DE (1) | DE19730047A1 (en) |
WO (1) | WO1999004484A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6249097B1 (en) | 1997-11-21 | 2001-06-19 | Valeo Electrical Systems, Inc. | Optimum motor speed control system |
DE19823376B4 (en) * | 1998-05-14 | 2014-07-17 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg | Drive unit for adjusting devices in motor vehicles |
DE102005047905C5 (en) * | 2005-10-06 | 2009-06-04 | Faurecia Autositze Gmbh | Vehicle seat assembly with at least one electrical adjustment |
DE102008006473B4 (en) * | 2008-01-25 | 2010-07-01 | Keiper Gmbh & Co. Kg | Actuator, in particular for a vehicle seat |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4426605A (en) * | 1981-06-05 | 1984-01-17 | Sig Schweizerische Industrie-Gesellschaft | Method of operating a shunt-wound DC motor as well as controlling device for the execution and application thereof |
DE3633347A1 (en) * | 1986-10-01 | 1988-04-14 | Daimler Benz Ag | Adjusting device for a seat |
US4814675A (en) * | 1985-11-21 | 1989-03-21 | Valeo | Device limiting the power supply current for a direct current motor equipped with such a device |
DE4233243A1 (en) * | 1991-10-03 | 1993-04-08 | Graco Inc | DC MOTOR DRIVE AND METHOD FOR CONTROLLING THE SAME |
EP0716499A1 (en) * | 1994-12-07 | 1996-06-12 | General Motors Corporation | Controller for a brushless DC Motor |
DE19502306A1 (en) * | 1995-01-26 | 1996-08-08 | Kostal Leopold Gmbh & Co Kg | Control of permanent magnet type electronically commutated DC motor for driving motor vehicle control actuators |
-
1997
- 1997-07-14 DE DE19730047A patent/DE19730047A1/en not_active Ceased
-
1998
- 1998-07-11 JP JP2000503592A patent/JP2001510980A/en active Pending
- 1998-07-11 KR KR1020007000334A patent/KR20010021771A/en not_active Application Discontinuation
- 1998-07-11 EP EP98946234A patent/EP0995259A1/en not_active Ceased
- 1998-07-11 WO PCT/DE1998/001936 patent/WO1999004484A1/en not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4426605A (en) * | 1981-06-05 | 1984-01-17 | Sig Schweizerische Industrie-Gesellschaft | Method of operating a shunt-wound DC motor as well as controlling device for the execution and application thereof |
US4814675A (en) * | 1985-11-21 | 1989-03-21 | Valeo | Device limiting the power supply current for a direct current motor equipped with such a device |
DE3633347A1 (en) * | 1986-10-01 | 1988-04-14 | Daimler Benz Ag | Adjusting device for a seat |
DE4233243A1 (en) * | 1991-10-03 | 1993-04-08 | Graco Inc | DC MOTOR DRIVE AND METHOD FOR CONTROLLING THE SAME |
EP0716499A1 (en) * | 1994-12-07 | 1996-06-12 | General Motors Corporation | Controller for a brushless DC Motor |
DE19502306A1 (en) * | 1995-01-26 | 1996-08-08 | Kostal Leopold Gmbh & Co Kg | Control of permanent magnet type electronically commutated DC motor for driving motor vehicle control actuators |
Also Published As
Publication number | Publication date |
---|---|
JP2001510980A (en) | 2001-08-07 |
DE19730047A1 (en) | 1999-01-28 |
EP0995259A1 (en) | 2000-04-26 |
KR20010021771A (en) | 2001-03-15 |
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