CN101640509B - Drive unit of starting motor - Google Patents
Drive unit of starting motor Download PDFInfo
- Publication number
- CN101640509B CN101640509B CN2008101262966A CN200810126296A CN101640509B CN 101640509 B CN101640509 B CN 101640509B CN 2008101262966 A CN2008101262966 A CN 2008101262966A CN 200810126296 A CN200810126296 A CN 200810126296A CN 101640509 B CN101640509 B CN 101640509B
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- coil
- voltage
- drive unit
- contact switch
- power
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- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000005183 dynamical system Methods 0.000 description 3
- 239000004821 Contact adhesive Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Motor And Converter Starters (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The invention provides a drive device of a starting motor, which comprises a first coil (1), a second coil (2), a contact switch (4) and a power supply (6), wherein a positive electrode of the power supply (6) is connected with the first coil (1) and the second coil (2) and is grounded through the second coil (2). The drive device also comprises a voltage transformer (5) and a one-way conductive element (3), wherein the output end of the voltage transformer (5) is connected with one end of the contact switch (4); the other end of the contact switch (4) is connected with the starting motor; the positive electrode of the power supply (6) is connected with the positive electrode of the one-way conductive element (3) through the first coil (1); the negative electrode of the one-way conductive element (3) is connected with the other end of the contact switch (4); and the one-way conductive element (3) only allows the current from the positive electrode to the negative electrode to pass through. By adopting the drive device of the starting motor, stable voltage can be supplied to the starting motor so that the starting motor can start an engine stably.
Description
Technical field
The present invention relates to drive unit, relate in particular to a kind of drive unit of starting motor that is used for hybrid electric vehicle starting motor.
Background technology
At present, hybrid vehicle efficient, the energy-saving and environmental protection vehicle has become the development trend of automobile industry because people to the pay attention to day by day of environmental protection and the effective and reasonable utilization of the energy, have.
The dynamical system of existing hybrid vehicle is made up of basic motive modules such as engine, actuating motor, storage batterys, is that the single storage battery of 12V drives actuating motor as electric supply installation with the rated voltage, and then pilots engine.
Provided by single storage battery owing to drive the needed starting voltage of actuating motor, cell load is heavy, and the life-span is short.And because the internal resistance of battery with the variation significantly variation of generation easily of environment temperature and environment for use, causes being applied to the also significantly variation thereupon of voltage of actuating motor.The starting voltage that changes diminishes the starting stability of actuating motor, thereby has also influenced the starting stability of engine.
Summary of the invention
The object of the present invention is to provide a kind ofly can provide burning voltage to actuating motor, realizes the drive unit of starting motor of actuating motor stable start engine.
Drive unit of starting motor provided by the invention comprises first coil, second coil, contact switch and power supply, the positive pole of described power supply is connected with second coil with first coil and by the second coil ground connection, be used to first coil and second coil that supply voltage is provided, described contact switch is closure when first coil and second coil generation magnetic field time, this drive unit also comprises voltage changer and unidirectional breakover element, the output of voltage changer is connected with an end of contact switch, the other end of described contact switch is used to connect actuating motor, voltage changer is used for the power high-voltage variable of the variation of input is changed into constant starting voltage and when contact switch is closed described constant starting voltage outputed to actuating motor, the positive pole of described power supply is connected to the positive pole of unidirectional breakover element by first coil, the negative pole of described unidirectional breakover element is connected with the other end of described contact switch, and this unidirectional breakover element only allows the electric current from the positive pole to the negative pole to pass through.
Drive unit of starting motor provided by the invention adopts voltage changer with voltage conversion function the power high-voltage variable that changes to be changed to resupply actuating motor after the constant voltage used for its driving, and power supply is only used with being connected of actuating motor loop as the trigger voltage converting means, avoided causing actuating motor to start unsettled situation owing to starting voltage changes, can realize the stable start of actuating motor, thereby guarantee the starting performance of engine.In addition, the power high voltage that changes among the present invention is from the car load power source, voltage changer among the present invention offers the actuating motor except the constant voltage that the power high-voltage variable that changes can be changed in the supply voltage scope, can also utilize its voltage transformation function the power high-voltage variable that changes to be changed to the constant voltage that is higher than supply voltage starts used for actuating motor, the torque that provides the starting voltage higher can improve actuating motor for actuating motor than supply voltage, and then improve the starting performance that actuating motor is piloted engine.
Description of drawings
Fig. 1 is the structure chart of drive unit of starting motor provided by the invention.
Embodiment
Below in conjunction with accompanying drawing drive unit of starting motor provided by the invention is described in further detail.
As shown in Figure 1, drive unit of starting motor provided by the invention comprises first coil 1, second coil 2, contact switch 4 and power supply 6, the positive pole of described power supply 6 is connected with second coil 2 with first coil 1 and by second coil, 2 ground connection, be used to first coil 1 and second coil 2 that supply voltage is provided, described contact switch 4 is closure when first coil 1 and second coil, 2 generation magnetic fields the time, this drive unit also comprises voltage changer 5 and unidirectional breakover element 3, the output of voltage changer 5 is connected with an end of contact switch 4, the other end of described contact switch 4 is used to connect actuating motor, voltage changer 5 be used for will input the power high-voltage variable of variation change constant starting voltage into and when contact switch 4 is closed, described constant starting voltage outputed to actuating motor, the positive pole of described power supply 6 is connected to the positive pole of unidirectional breakover element 3 by first coil 1, the negative pole of described unidirectional breakover element 3 is connected with the other end of described contact switch 4, and this unidirectional breakover element 3 only allows the electric current from the positive pole to the negative pole to pass through.
Described power supply 6 is the lead acid accumulator of 12V DC for rated voltage, and is in parallel with vehicle-mounted DC-DC converter, is used to power supplies such as vehicle-mounted annex, for example air-conditioning, hoot device, car navigation device, is used to first coil 1 and 2 power supplies of second coil simultaneously.The output voltage range of power supply 6 is 10.5V-14.2V DC.
Described first coil 1 and second coil 2 are inductance coil, produce magnetic field owing to the electric current that flows through coil itself changes, for conventionally known to one of skill in the art.First coil 1 is the absorption coil, and the one end connects the positive pole of power supply 6, and the other end connects the positive pole of unidirectional breakover element 3, is used for producing magnetic field when vicissitudinous electric current flows through, and produces magnetic force and adhesive contact switch 4 by magnetic field.Second coil 2 is a hold-in winding, and an end connects the positive pole of power supply 6, other end ground connection.
One end of described contact switch 4 is connected with the output of voltage changer 5, and the other end connects the negative pole of unidirectional breakover element 3, and is connected to actuating motor.Described contact switch 4 be set at when first coil 1 and second coil 2 produce magnetic fields can closed scope in.Contact switch 4 has fixed contact and moving contact, and when first coil 1 produced magnetic field, the moving contact of contact switch 4 was owing to the effect and the fixed contact adhesive of magnetic force, with the output voltage V of voltage changer 5
OutBe passed to actuating motor.When first coil 1 did not produce magnetic field, the moving contact of contact switch 4 separated with fixed contact, and the path between voltage changer 5 and the actuating motor is disconnected.
Described unidirectional breakover element 3 for example can be diode for having the semiconductor element of unidirectional on state characteristic arbitrarily.Unidirectional breakover element 3 has positive pole and negative pole, and its positive pole is connected with first coil 1, and negative pole is connected to actuating motor.When first coil, 1 generation magnetic field causes contact switch 4 adhesives, contact switch 4 closures, the output voltage V of voltage changer 5
OutBecause the blocking effect of unidirectional breakover element 3 can only be passed to actuating motor, and can not form the loop by first coil 1.
Described actuating motor is for being converted to the direct current energy of input mechanical energy output arbitrarily, realizing direct current energy and the mechanical energy electric rotating machine of conversion, for example brshless DC motor mutually.The driving voltage of described actuating motor is its rated voltage, is used to drive the actuating motor operation.Generally, the driving voltage of described actuating motor is 12V-42V DC.
Described voltage changer 5 is arbitrarily can be with the input voltage V that changes
InBe transformed to constant output voltage V
OutVoltage changer, is connected with electrical source of power 7 for car load dynamical system power supply, the power high-voltage variable that is used for the variation of ultromotivity power supply 7 in the future is changed to for the used constant voltage of actuating motor driving, for example can be the DC-DC converter.
Described DC-DC converter selects for use phase-shift controller UCC2895 as main control chip, according to input voltage V
InVariation and adjust inner duty ratio, to reach to output voltage V
OutControl, realize the function of voltage stabilizing output, its operation principle is conventionally known to one of skill in the art.The output voltage V of described DC-DC converter
Out, be that starting voltage after the conversion can be set according to the rated voltage of actuating motor.Generally, the scope of the starting voltage after the described conversion is 12V-42V DC.
Drive unit of starting motor provided by the invention also comprises electrical source of power 7, is connected with the input of voltage changer 5, is used to voltage changer 5 that the power high voltage of variation is provided.
Described electrical source of power 7 is for can for example being the high-tension battery bag for actuating motor provides power high-tension device arbitrarily.Described high-tension battery bag is the power source of car load, is used to the power supply of car load dynamical system, for conventionally known to one of skill in the art.Generally, the output voltage range of described electrical source of power 7 is 180V-400V DC.
For the torque that improves actuating motor to improve the starting performance of actuating motor, and then the starting performance of raising engine, shorten the starting time of engine, the smooth and easy vehicle that starts, under the preferable case, the driving voltage of described actuating motor is 42V DC, and the starting voltage after the conversion of voltage changer 5 outputs is 42V DC.
When needs were piloted engine, power supply 6 was first coil 1 and 2 power supplies of second coil.The switch of power supply 6 can be controlled by vehicle master control ECU, for example starts by key when automotive ignition, and power-on 6 when tightening key, unclamps powered-down 6 behind the key.When power-on 6 is first coil 1 and 2 power supplies of second coil, the output voltage of power supply 6 becomes 12V by 0V, and electric current flows through first coil 1 and second coil 2 produces magnetic field, thus contact switch 4 is produced magnetic force, cause the moving contact and the fixed contact adhesive of contact switch 4, contact switch 4 closures.Power high voltage by the variation of electrical source of power 7 input is transformed to constant voltage output through voltage changer 5, and because the blocking effect of unidirectional breakover element 3, the constant voltage of voltage changer 5 outputs can only output to actuating motor by contact switch 4, pilots engine used for actuating motor.This moment, the cathode voltage of unidirectional breakover element 3 was higher than cathode voltage owing to contact switch 4 adhesives, and therefore unidirectional breakover element 3 disconnects, and first coil 1 is by short circuit, and magnetic field disappears, and contact switch 4 disconnects thus, has finished the starting process of actuating motor.After unclamping key powered-down 6, do not have electric current to flow through first coil 1 and second coil 2, contact switch 4 keeps disconnecting.In the traditional actuating motor drive system of hybrid vehicle, the switching process of controlling contact switch 4 by the switching of control power supply 6 is conventionally known to one of skill in the art.
Adopt drive unit of starting motor provided by the invention to provide constant voltage used for actuating motor for its driving, the actuating motor that the starting voltage of having avoided changing causes starts unsettled situation, can realize the stable start of actuating motor, thereby guarantee the starting performance of engine.And drive unit of starting motor provided by the invention can also provide the constant voltage that is higher than supply voltage for actuating motor, the torque that provides the constant voltage that is higher than supply voltage can improve actuating motor for actuating motor, and then improve the starting performance that actuating motor is piloted engine.
Claims (6)
1. drive unit of starting motor, this drive unit comprises first coil (1), second coil (2), contact switch (4) and power supply (6), the positive pole of described power supply (6) is connected with second coil (2) with first coil (1) and by second coil (2) ground connection, be used to first coil (1) and second coil (2) that supply voltage is provided, described contact switch (4) is closure when first coil (1) and second coil (2) generation magnetic field the time, and disconnect when not producing magnetic field at first coil (1) and second coil (2), wherein, this drive unit also comprises voltage changer (5), unidirectional breakover element (3), and electrical source of power (7), the output of voltage changer (5) is connected with an end of contact switch (4), the other end of described contact switch (4) is used to connect actuating motor, voltage changer (5) is used for the power high-voltage variable of the variation of input is changed into constant starting voltage and when contact switch (4) is closed described constant starting voltage outputed to actuating motor, the positive pole of described power supply (6) is connected to the positive pole of unidirectional breakover element (3) by first coil (1), the negative pole of described unidirectional breakover element (3) is connected with the other end of described contact switch (4), this unidirectional breakover element (3) only allows the electric current from the positive pole to the negative pole to pass through, described electrical source of power (7) is connected with the input of voltage changer (5), is used to voltage changer (5) that the power high voltage of variation is provided.
2. drive unit according to claim 1, wherein, described electrical source of power (7) is the high-tension battery bag.
3. drive unit according to claim 1, wherein, described voltage changer (5) is the DC-DC converter.
4. drive unit according to claim 1, wherein, described unidirectional breakover element (3) is a diode.
5. drive unit according to claim 1, wherein, described first coil (1) and second coil (2) are inductance coil.
6. drive unit according to claim 1, wherein, the voltage range of described power supply (6) output is 10.5V-14.2V DC, and the scope of the starting voltage after the described conversion is 12V-42V DC, and the voltage range of described electrical source of power (7) output is 180V-400V DC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101262966A CN101640509B (en) | 2008-07-30 | 2008-07-30 | Drive unit of starting motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101262966A CN101640509B (en) | 2008-07-30 | 2008-07-30 | Drive unit of starting motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101640509A CN101640509A (en) | 2010-02-03 |
| CN101640509B true CN101640509B (en) | 2011-07-13 |
Family
ID=41615339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101262966A Expired - Fee Related CN101640509B (en) | 2008-07-30 | 2008-07-30 | Drive unit of starting motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101640509B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2952782A (en) * | 1959-01-13 | 1960-09-13 | Stanley J Woyden | Automatic engine starting circuit |
| US4316095A (en) * | 1979-08-27 | 1982-02-16 | Laffoon Perry D | Engine starting apparatus |
| CN1760533A (en) * | 2004-10-12 | 2006-04-19 | 株式会社电装 | Engine starting assist system |
-
2008
- 2008-07-30 CN CN2008101262966A patent/CN101640509B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2952782A (en) * | 1959-01-13 | 1960-09-13 | Stanley J Woyden | Automatic engine starting circuit |
| US4316095A (en) * | 1979-08-27 | 1982-02-16 | Laffoon Perry D | Engine starting apparatus |
| CN1760533A (en) * | 2004-10-12 | 2006-04-19 | 株式会社电装 | Engine starting assist system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101640509A (en) | 2010-02-03 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110713 |
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| CF01 | Termination of patent right due to non-payment of annual fee |