EP1315903A1 - Startvorrichtung für brennkraftmaschinen - Google Patents
Startvorrichtung für brennkraftmaschinenInfo
- Publication number
- EP1315903A1 EP1315903A1 EP01960110A EP01960110A EP1315903A1 EP 1315903 A1 EP1315903 A1 EP 1315903A1 EP 01960110 A EP01960110 A EP 01960110A EP 01960110 A EP01960110 A EP 01960110A EP 1315903 A1 EP1315903 A1 EP 1315903A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- winding
- pull
- starter motor
- engagement
- relay
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits specially adapted for starting of engines
- F02N11/087—Details of the switching means in starting circuits, e.g. relays or electronic switches
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
- F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
- F02N15/06—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
- F02N15/067—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement the starter comprising an electro-magnetically actuated lever
Definitions
- the invention relates to a starting device for starting internal combustion engines according to the preamble of claim 1.
- Engagement relay with an engagement and holding winding to a ring gear of the internal combustion engine and engaged there.
- the electrical starter motor is then energized via a switch contact of the engagement relay.
- the relay armature of the engagement relay is moved axially and the armature movement is transmitted to a freewheel gear, which carries the pinion at the front, via an engagement lever and an engagement spring.
- the circuit of the starter motor is also closed via the switch contact of the engagement relay and thus the
- the aim of the present solution is to prevent the switching contacts from bouncing or fluttering as reliably as possible by changing the engagement dynamics of the engagement relay and to improve the switching reliability, especially at high temperatures and high lead resistance.
- the star device according to the invention with the features mentioned in the characterizing part of claim 1 has the advantage over the prior art that when the starter motor is switched on by closing the switching contacts of the engagement relay, the pull-in winding is therefore switched off not at the same time but with a time delay and thus in the event of a tooth opening. Tooth position of the engagement pinion on the ring gear reliably prevents the relay armature from fluttering due to the tensioned engagement spring. Due to the delayed shutdown of the
- Infeed winding gives the starter motor enough time to rotate the starter pinion into the next tooth space on the ring gear and to engage it there.
- the engagement spring is again largely relaxed, so that the force of the holding winding is sufficient to hold the starter pinion in the engagement position while the internal combustion engine is turning on.
- Another advantage is that, due to the fact that the pull-in winding has a longer period of involvement in the engagement process, the limit temperature for the starting device can be increased, since the tendency to bounce or flutter at the starter relay is significantly reduced during so-called hot starts of the internal combustion engine.
- the delayed switch-off of the pull-in winding according to the invention may reduce the current requirement of the relay windings, which in particular enables a simpler design of the relay control line and the switching elements in the control line.
- the modification of the starter device according to the invention thus not only significantly reduces the tendency to bounce, flutter or vibrate the relay contacts in the main circuit of the starter device due to the temporarily higher magnetic force when the switch contact closes, but at the same time also reduces the risk of meshing at high temperatures or high lead resistance improved in the control circuit of the engagement relay 19.
- the timing element is designed in the simplest form in the form of an RC element, preferably in the form of a series RC element, the resistance-capacitor connection being connected to the control connection of the control switching element switching the pull-in winding.
- the series RC element is connected in the simplest way with its resistance to a connection between the starter motor and the switching contact of the engagement relay and with its capacitor to a ground connection. Since the starting dynamics of the engagement relay are reduced with increasing temperatures, this can be compensated in an advantageous manner in that the time delay for switching off the pull-in winding is increased with increasing temperatures, in that the resistance of the RC element is a PTC resistor.
- a solution is particularly simple in which the switching path of the control switching element between the end of the pull-in winding facing away from the control line and one
- the control element is a transistor, preferably a field effect transistor.
- the control switching element and timing element are advantageously to be accommodated in the engagement relay as a potted circuit module.
- Conventional starting devices can thus be converted to the embodiment according to the invention in a relatively simple manner by replacing the engagement relay.
- the circuit module has two connections for the switching path of the control switching element, which are connected between a magnetic core of the engagement relay which is at ground potential and the end of the pull-in winding.
- the resistance of the timing element is expediently connected to the terminal of the engagement relay via a third connection of the circuit module
- FIG. 1 shows the mechanical structure of a starting device with a push-in relay and starter motor
- FIG. 2 shows the circuit structure of the starting device with the solution according to the invention
- FIG. 3 shows a diagram with the magnetic flux on the engagement relay, a) in the solution according to the invention, b) in a conventional solution during a starting process and
- FIG. 4 shows a circuit module for installation in the engagement relay. Description of the embodiment
- FIG. 1 shows schematically the mechanical structure of the starting device 10 according to the invention in the form of a push-screw drive starter for internal combustion engines.
- the starting device 10 has a starter motor 11, the output shaft 12 of which has a steep thread 13 which interacts with a corresponding nut thread in a driving shaft 14.
- the output shaft 12 is driven by the starter motor 11 via an interposed planetary gear, not shown.
- the driver shaft 14 is fixedly connected to the outer ring of a freewheel 15, the inner ring of which carries a starter pinion 16 at the front. Starter pinion 16 and freewheel 15 are on the
- Output shaft 12 is axially displaceable up to a stop 17.
- the starter pinion 16 is engaged in a ring gear 18 of the internal combustion engine.
- the axial displacement takes place with the aid of an engagement relay 19, the relay armature, not shown, via a bell crank 20 and a
- Track spring 21 engages the freewheel 15.
- FIG. 2 shows the circuit structure of the starter device according to FIG. 1. It can be seen there that the engagement relay 19 has an engagement winding 22 and a holding winding 23 and one
- the engagement relay 19 has three connection terminals, 30, 45 and 50 and is at ground potential with its housing.
- the switch contact 24 lies with its connection terminal 30 on the plus connection
- Accumulator battery 25 of the motor vehicle which is connected to ground with its negative connection.
- the switch contact 24 is firmly connected via the terminal 45 to the starter motor 11, the other connection of which is also connected to ground.
- To control the engagement relay 19 are engagement and Holding winding 22, 23 is connected at one end together via the connecting terminal 50 to a control line 26, via which, in the example, a start signal from a manually operated starter switch 27 located at the plus potential of the motor vehicle electrical system reaches the starter device.
- the other end of the holding winding 23 is connected internally to ground via the core of the engagement relay.
- the pull-in winding 22 is connected in series with a control switching element .28, which can be switched from the conductive state to the blocking state by a timer 29 connected in parallel with the starter motor 11.
- the free end of the pull-in winding 22 is switched to ground via the switching path of the control switching element 28.
- a field effect transistor J-FET, P-channel
- any other electronic switching element could also be used here, provided that it is to be switched from the conductive to the blocking state via a control connection.
- the timing element 29 consists of a series RC element, the resistance-capacitor connection 31 of which is connected to the control connection 32 of the control switching element 28.
- the timer 29 is connected by its resistor 33 to the connection terminal 45 of the engagement relay 19 and by its capacitor 34 to a ground connection.
- the resistor 33 of the timing element 29 is designed here as a PTC resistor.
- FIG. 3 shows the magnetic flooding of the engagement relay 19 when a start signal is applied via the control line 26 during a starting process, specifically in diagram a) according to the solution according to the invention and in diagram b) according to a conventional solution.
- the start switch 27 In the idle state, the start switch 27 is open and the engagement relay 19 in the rest position according to FIGS. 1 and 2.
- the capacitor 34 of the timing element 29 is discharged via the resistor 33 and the starter motor 11.
- Control switching element 28 reverses in the locked state.
- the current in the pull-in winding 22 of the engagement relay 19 is thus interrupted, so that the relay armature only keeps the starter pinion 19 in its engaged state via the deflection lever 20 with the holding force which is generated by the flow ⁇ 23 of the holding winding 23.
- the engagement relay 19 is now switched off by opening the start switch 27 at time t4, as a result of which the holding winding 23 is now also de-energized.
- a return spring not shown
- the engagement relay 19 operates in the manner described above, regardless of whether the starter pinion 16 engages in the ring gear 18 or not. In a tooth-on-tooth position between starter pinion 16 and ring gear 18, however, the engagement spring 21 is fully tensioned with the pull-in force of the total flow ⁇ 22 + ⁇ 23. From the time t2, the starter motor 11 is applied to full voltage and the starter pinion 16 is thus rotated against strong frictional forces on the ring gear 18 so that it can get into the next tooth gap of the ring gear. With the engagement of the starter pinion 16 in the ring gear 18 Track spring 21 largely relaxed again before time t3. At time t3, the starter pinion 16 is thus fully engaged in the ring gear 18 and the pull-in winding 22 is - as explained above - switched off safely.
- Diagram 3 b) shows the flooding of an engagement relay of conventional design.
- the switch contact closes, the pull-in winding is switched off and the tensile force of the
- Control switching element 28 and RC timer 29 can be embedded in a circuit module encapsulated in insulating material. This can then be screwed onto the magnetic core of the engagement relay 19 and thus be integrated into the engagement relay.
- a circuit module 36 is shown in spatial representation in FIG. It only requires two connection plates 37, 38 for the
- the first connection plate 37 is contacted here via the wire end of the pull-in winding 22 indicated by the broken line, while the second connection plate 38 is connected to the magnetic core of the engagement relay 19 as a ground contact is screwed tight.
- the third connection plate 39 is connected to the terminal 45 of the engagement relay 19 by a connection wire 41 indicated by a broken line.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Motor And Converter Starters (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10041999 | 2000-08-26 | ||
| DE10041999A DE10041999A1 (de) | 2000-08-26 | 2000-08-26 | Startvorrichtung für Brennkraftmaschinen |
| PCT/DE2001/002515 WO2002018780A1 (de) | 2000-08-26 | 2001-07-06 | Startvorrichtung für brennkraftmaschinen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1315903A1 true EP1315903A1 (de) | 2003-06-04 |
| EP1315903B1 EP1315903B1 (de) | 2004-03-03 |
Family
ID=7653898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01960110A Expired - Lifetime EP1315903B1 (de) | 2000-08-26 | 2001-07-06 | Startvorrichtung für brennkraftmaschinen |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1315903B1 (de) |
| DE (2) | DE10041999A1 (de) |
| ES (1) | ES2217178T3 (de) |
| WO (1) | WO2002018780A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006033174A1 (de) | 2006-07-18 | 2008-01-31 | Robert Bosch Gmbh | Spulenanordnung mit einem Spulenträger eines elektromagnetischen Antriebs |
| DE102010039044A1 (de) * | 2010-08-09 | 2012-02-09 | Robert Bosch Gmbh | Starter für eine Brennkraftmaschine eines Kraftfahrzeuges und Verfahren zum Herstellen eines solchen Starters |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4586467A (en) * | 1983-10-27 | 1986-05-06 | General Motors Corporation | Electric starting apparatus |
| JPH063176B2 (ja) * | 1985-10-11 | 1994-01-12 | 株式会社日立製作所 | スタ−タ |
| KR900009058B1 (ko) * | 1987-02-25 | 1990-12-17 | 미쓰비시전기 주식회사 | 전자 스위치 장치 |
| US4731543A (en) * | 1987-05-01 | 1988-03-15 | General Motors Corporation | Electric starting motor control system |
| US4755689A (en) * | 1987-10-06 | 1988-07-05 | General Motors Corporation | Electric starting system |
-
2000
- 2000-08-26 DE DE10041999A patent/DE10041999A1/de not_active Withdrawn
-
2001
- 2001-07-06 ES ES01960110T patent/ES2217178T3/es not_active Expired - Lifetime
- 2001-07-06 DE DE50101638T patent/DE50101638D1/de not_active Expired - Lifetime
- 2001-07-06 EP EP01960110A patent/EP1315903B1/de not_active Expired - Lifetime
- 2001-07-06 WO PCT/DE2001/002515 patent/WO2002018780A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0218780A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10041999A1 (de) | 2002-03-07 |
| ES2217178T3 (es) | 2004-11-01 |
| DE50101638D1 (de) | 2004-04-08 |
| EP1315903B1 (de) | 2004-03-03 |
| WO2002018780A1 (de) | 2002-03-07 |
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