EP0504342B1 - Elektronisches startsperr-relais für eine kraftfahrzeug-brennkraftmaschine - Google Patents

Elektronisches startsperr-relais für eine kraftfahrzeug-brennkraftmaschine Download PDF

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Publication number
EP0504342B1
EP0504342B1 EP91916667A EP91916667A EP0504342B1 EP 0504342 B1 EP0504342 B1 EP 0504342B1 EP 91916667 A EP91916667 A EP 91916667A EP 91916667 A EP91916667 A EP 91916667A EP 0504342 B1 EP0504342 B1 EP 0504342B1
Authority
EP
European Patent Office
Prior art keywords
starter
internal combustion
combustion engine
acceleration
excitation
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.)
Expired - Lifetime
Application number
EP91916667A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0504342A1 (de
Inventor
Hans-Dietrich Smentek
Peter Kleindieck
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0504342A1 publication Critical patent/EP0504342A1/de
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Publication of EP0504342B1 publication Critical patent/EP0504342B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02N11/10—Safety devices
    • F02N11/101—Safety devices for preventing engine starter actuation or engagement
    • F02N11/105—Safety devices for preventing engine starter actuation or engagement when the engine is already running
    • 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
    • F02N11/006—Starting of engines by means of electric motors using a plurality of electric motors
    • 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
    • F02N11/10—Safety devices
    • F02N11/106—Safety devices for stopping or interrupting starter actuation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1497—With detection of the mechanical response of the engine
    • 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
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/02—Parameters used for control of starting apparatus said parameters being related to the engine
    • F02N2200/022—Engine speed

Definitions

  • the invention relates to an electronic starter lock relay for a motor vehicle internal combustion engine, with a relay arrangement that controls the starter excitation and is controlled by a control circuit that detects at least one operating parameter of the internal combustion engine as a function of the actuation of a starter switch.
  • a starter protection device is known from DE 33 43 342 A1, in which a variety of operating parameters, namely the ignition pulse frequency of the engine, the negative pressure in the intake manifold of the engine, the output voltage of the alternator and the position of the gear shift lever are detected.
  • a corresponding number of sensors is required for this, which is associated with a corresponding outlay.
  • the case may still occur that the starter is still in the run-down state while the next starting process is already being started. In this case, as stated, damage to the starter and the associated power transmission components cannot be ruled out.
  • the corresponding sensors are arranged in the motor vehicle and wired to the circuit. This justifies considerable installation effort corresponding to the known protective device both during the initial motor vehicle assembly and in particular when the motor vehicle is subsequently retrofitted.
  • the electronic starter lock relay according to the invention with the features mentioned in the main claim has the advantage that the acceleration or vibration sensor can be detected in an extremely simple, yet reliable manner, whether the internal combustion engine is running or not. If necessary, the acceleration or vibration sensor can also be used to determine whether the starter is still rotating, ie is, for example, in the run-down state. By releasing a possible starting process only below the predetermined acceleration or vibration level, it can be reliably ensured that no starting process is possible while the internal combustion engine is running.
  • the acceleration or vibration sensor can be attached in a very simple manner to parts which vibrate with the internal combustion engine running, on the internal combustion engine itself or in the starter, so that subsequent installation can also be carried out with very little effort.
  • the outlay required according to the invention is also kept within very limited limits in that only the acceleration or vibration sensor has to be installed, but it is not necessary to have a large number of detectors for the output voltage of the alternator, the engine ignition pulse frequency or provide the like and wire.
  • acceleration or vibration sensor e.g. the accelerometer described in DE 39 18 780 A1 can be used with piezoelectric elements.
  • sensors for structure-borne noise can also be used, by means of which the engine vibrations can be detected.
  • the advantage for the vehicle manufacturer is that no additional assembly and wiring work is required. Furthermore, the start inhibit relays previously used can be omitted.
  • the power supply of the acceleration or vibration sensor and the control circuit can be provided in a very simple manner via the lines to, on or in the starter which are conventionally already present on the starter, so that the wiring effort is also minimal.
  • acceleration or vibration sensor as well as the components of the control circuit can be made simple, small and inexpensive.
  • these components can be realized so that they can be mounted on the starter or integrated in the starter. No further intervention or any modification of the construction is necessary on the vehicle side.
  • an additional timing element is provided, which generates a signal during a predetermined time interval after the actuation of the starter switch has ended, which blocks a renewed actuation of the starter. This can reliably ensure that no new starter start attempt is started while the starter is still running out. This increases the safety factor against starter damage even further. This applies in particular if the acceleration or vibration sensor should not reliably detect vibrations of the starter as it rotates.
  • the insertion of the timer also does not require any special wiring, since it only has to be switched on in the control circuit or in related line connections, but no connection to external sensors is required.
  • three input parameters namely the output signal of the timing element, the signal representing the switching state of the starter switch and the output signal of the acceleration or vibration sensor (possibly after an output signal conversion) can be processed in a very simple manner and converted into a common control signal become.
  • the circuitry required for this is low.
  • the signal commanding the starter excitation becomes preferably only generated when the timing element does not emit a blocking signal, the starter switch is closed and the acceleration or vibration sensor detects no accelerations or vibrations.
  • the timing element which limits the maximum duration of excitation of the starter is preferably connected to the output of the comparison element, so that only a single control line is required for this timing element.
  • the excitation pulse of the comparison element can thus serve at the same time to trigger the timing element as well as to activate the starter excitation, i.e. to perform a double function without additional wiring being necessary.
  • a self-holding relay which switches off the internal power supply for the control circuit after a predetermined time interval has elapsed after the starter switch has been switched on.
  • the acceleration or vibration sensor preferably together with the control circuit, is integrated in the starter or attached to it.
  • the starter with associated start interlock relay according to the invention can be handled as a unit without the need for additional line wiring to the motor vehicle, with the exception of the usual starter wiring. This makes it possible to ensure an extremely compact structure with very little handling effort.
  • an embodiment of the electronic start inhibit relay is shown, which is used to control the excitation of a starter 1, which is designed as an electric motor.
  • the starter 1 is connected to a terminal 2 via a relay switch K1a of a relay K1, which is linked to a voltage supply line 3.
  • Voltage for example of +12 V, is present at the voltage supply line 3 continuously or at least during the operation of the motor vehicle or when the ignition key is switched on.
  • the starter 1 is connected with its other connection to a connection 4 which is connected to ground potential.
  • the voltage supply line 3 is coupled to a connection of a starter switch 5 which is normally open and is closed for actuating the starter 1.
  • the other connection of the starter switch 5 is connected to a connection 6, from which a line 7 leads, which is linked in the manner shown to a plurality of components of the starter lock relay according to the invention which will be described in more detail below.
  • line 7 is connected to a comparator 8, which thus receives a positive input signal at the connection connected to line 7 when starter switch 5 is closed.
  • An acceleration sensor 9 (or a vibration sensor) is provided for detecting vibrations or accelerations, in particular vibration accelerations, of the internal combustion engine coupled to the starter 1.
  • the acceleration sensor 9 can be attached to the internal combustion engine or to a part that vibrates together with it, for example a part of the suspension.
  • the acceleration sensor 9 is preferably attached to or in the starter and can therefore not only measure the vibration accelerations of the internal combustion engine, but also check the running condition of the starter yourself. If the acceleration sensor 9 does not output an output signal, this is an indication that the internal combustion engine is not in motion.
  • the zero level of the acceleration sensor output signal also means that the starter 1 is at a standstill.
  • the acceleration sensor 9 can be designed as an acceleration sensor with piezoelectric elements, as is known from DE 39 18 780 A1. Such an acceleration sensor can be used to record vibration accelerations of the engine block in accordance with EM 1241/88. Alternatively, a sensor for structure-borne noise can be used as or instead of the acceleration sensor 9, with which vibrations in the form of structure-borne noise according to EM 1240/88 can be detected. In any case, vibrations are detected or the vibration acceleration is measured via the sensor 9, from which it can be determined whether the internal combustion engine is running or stopped, so that starter actuations can be avoided while the engine is still running.
  • the output signal of the acceleration sensor 9 or a corresponding vibration sensor is processed via a signal conditioning circuit 10 and applied to an inverting input connection of the comparison element 8.
  • the comparator 8 has a third, also inverting input, which is connected to a timing element 11.
  • the timer 11 is connected on the input side to the line 7 and generates a "1" output signal for a predetermined time interval of, for example, three seconds after the voltage on line 7 has dropped.
  • the voltage drop on line 7 is an indication that the starter switch 5 has been opened again, ie that a start attempt has just ended.
  • the timer 11 thus ensures that no new start attempt can be started during the predetermined time interval after the starting process or attempt to start has ended.
  • the time interval of the timer 11 is chosen so large that the starter 1 can completely run out after its excitation has ended, ie has come to a complete rest before a new attempt to start can be initiated.
  • the comparator 8 thus always queries whether voltage is present on the line 7, i.e. the starter switch 5 is closed, whether the acceleration sensor 9 does not emit an output signal and whether the timing element 11 also does not generate an output signal. Only in this case, ie when the starter 1 and the internal combustion engine are at rest and the starter switch 5 has been actuated, does the comparator 8 output an output signal to a timing element 12 at its output connection which is used to limit the maximum duration of uninterrupted starter Excitement serves.
  • the timer 12 is set to a time interval of, for example, 60 seconds and automatically switches off the starter excitation after this period of time with the excitation input signal applied unchanged. This can cause excessive stress on the starter 1 with excessive danger Heating and excessive power consumption of the starting process can be switched off automatically. If the timer 12 has not yet expired, it forwards the output signal of the comparator 8 commanding a starting process to a transistor 13, which switches through when this signal is received and activates a relay K2 connected to it. A relay switch K2a of the relay K2 is closed when the relay K2 is activated, as a result of which the potential of the voltage supply line 3 is applied to the relay K1. As a result, the relay K1 is also excited so that its relay switch K1a closes and connects the motor windings of the starter 1 to the voltage supply line 3. The starter 1 is therefore energized.
  • a diode 14 is connected in parallel with the relay K2, which serves as a freewheeling diode and can derive reaction currents when the relay K2 is switched.
  • the power supply of the comparison element 8, the timing element 11 and the relay K2 takes place via a line 15, to which the cathode of the diode 14 and a connection of the relay switch K2a are also connected.
  • the line 15 is coupled to the connection 2 and thus to the power supply line 3.
  • the timer 11 can thus carry out its time counting process even when the starter switch 5 is switched off.
  • the timer 12 is connected to the line 7 for the power supply via a line 16 and is thus only supplied with current when the starter switch 5 is closed. On the one hand, this causes the timer 12 to switch off automatically when it is opened of the starter switch 5 and, on the other hand, leads to a reduction in the power consumption of the timing element 12.
  • the power supply to the individual components, in particular the comparator 8 and the timing elements 11, 12 via a self-holding timer or self-holding relay, which is connected, for example, to the terminal 6, ie when the starter switch is closed 5 is initiated.
  • the self-holding timer can be set to a duration of, for example, five minutes and ensures the internal power supply of the components 8, 11 and 12 connected to the self-holding timer during this time interval. After the time interval has elapsed, the internal power supply of these components is automatically ended.
  • This has the advantage that the start inhibit relay is normally in the idle state without power consumption, ie without quiescent current. Only when the starter switch 5 is switched on is the internal power supply briefly activated in order to be able to carry out the desired protective function. As a result, the total required current requirement of the starter lock relay according to the invention can be kept very low.
  • the driver closes the starter switch 5, the comparator 8 checking whether there is vibration acceleration or not, whether the starter 1 is currently in the run-down or not, and whether the starter switch 5 is switched on, that is to say the connector 6 is supplied with voltage is. If these conditions are met, the timer 12 is triggered and the starter 1 is thus switched on.
  • the starter switch 5 When the starter switch 5 is switched off, the power supply is removed from the timing element 12 and the starter 1 is thereby switched off. At the same time the timer 11 is triggered when the starter switch 5 is switched off in order to take into account the starter run-down time.
  • the starter cannot be actuated. This is because the timer 11 is still activated, so that Do not switch comparator 8 and consequently cannot switch on starter 1 (via timer 12 and the other components). After the time period of the timer 11 has elapsed, the starter 1 can be started again when the starter switch 5 is actuated.
  • the starter 1 is automatically switched off after this time interval.
  • the starter 1 can only be reactivated by actuating the starter switch 5 again and after the starter 1 has run down, i.e. after the time interval of the timer 11 has elapsed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
EP91916667A 1990-10-04 1991-09-25 Elektronisches startsperr-relais für eine kraftfahrzeug-brennkraftmaschine Expired - Lifetime EP0504342B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4031275 1990-10-04
DE4031275A DE4031275A1 (de) 1990-10-04 1990-10-04 Elektronisches startsperr-relais fuer eine kraftfahrzeug-brennkraftmaschine
PCT/DE1991/000758 WO1992006290A1 (de) 1990-10-04 1991-09-25 Elektronisches startsperr-relais für eine kraftfahrzeug-brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP0504342A1 EP0504342A1 (de) 1992-09-23
EP0504342B1 true EP0504342B1 (de) 1995-01-18

Family

ID=6415505

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Application Number Title Priority Date Filing Date
EP91916667A Expired - Lifetime EP0504342B1 (de) 1990-10-04 1991-09-25 Elektronisches startsperr-relais für eine kraftfahrzeug-brennkraftmaschine

Country Status (5)

Country Link
EP (1) EP0504342B1 (ja)
JP (1) JPH05502496A (ja)
AU (1) AU8632991A (ja)
DE (2) DE4031275A1 (ja)
WO (1) WO1992006290A1 (ja)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5252861A (en) * 1991-07-18 1993-10-12 Eaton Corporation Starter interlock for electronically controlled vehicle
DE19532484B4 (de) * 1995-02-03 2005-08-25 Robert Bosch Gmbh Startvorrichtung zum Starten einer Brennkraftmaschine
DE19705587C2 (de) * 1997-02-14 1999-07-15 Audi Ag Verfahren zur Steuerung eines elektromotorischen Anlassers
US6104157A (en) * 1997-10-11 2000-08-15 Robert Bosch Gmbh Apparatus and method for controlling an electrical starter of an internal combustion engine
JP3502250B2 (ja) * 1997-12-26 2004-03-02 三菱電機株式会社 スタータ保護装置
FR2797536B1 (fr) * 1999-08-09 2001-11-02 Valeo Equip Electr Moteur Dispositif de commande de l'alimentation d'un demarreur de moteur thermique, notamment de vehicule automobile
US6354257B1 (en) * 2000-08-09 2002-03-12 International Truck And Engine Corp. System and method for preventing start pinion/gear ring engagement during selected engine start conditions
DE10218011A1 (de) * 2002-04-23 2003-11-06 Bosch Gmbh Robert Verfahren und Vorrichtung zur Detektion der Beendigung eines Startvorgangs bei einer Brennkraftmaschine eines Kraftfahrzeugs
TR200901546T1 (tr) * 2006-09-05 2009-07-21 Ford Otomoti̇v Sanayi̇ A.Ş. Bîr marş motoru koruma yöntemi.
EP3230581A1 (en) * 2014-12-08 2017-10-18 Turk Traktor Ve Ziraat Makinalari Anonim Starter protection system
KR101619663B1 (ko) * 2014-12-09 2016-05-18 현대자동차주식회사 하이브리드 차량의 능동형 진동 저감 제어장치 및 그 방법

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3214365A1 (de) * 1982-04-20 1983-10-20 Robert Bosch Gmbh, 7000 Stuttgart Sicherheitseinrichtung fuer eine vorrichtung zum anlassen und abstellen einer brennkraftmaschine
JPS5985377U (ja) * 1982-11-30 1984-06-09 三菱電機株式会社 エンジンのスタ−タ保護装置
GB2208140B (en) * 1987-06-19 1992-01-02 Rakib Khan Cold start
DE3918780C2 (de) * 1988-06-10 1994-04-07 Mitsubishi Electric Corp Beschleunigungsaufnehmer

Also Published As

Publication number Publication date
AU8632991A (en) 1992-04-28
DE4031275A1 (de) 1992-04-09
JPH05502496A (ja) 1993-04-28
EP0504342A1 (de) 1992-09-23
DE59104333D1 (de) 1995-03-02
WO1992006290A1 (de) 1992-04-16

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