US3857043A - Interlock circuit for blocking operation of starter motor of a combustion engine - Google Patents

Interlock circuit for blocking operation of starter motor of a combustion engine Download PDF

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Publication number
US3857043A
US3857043A US00323719A US32371973A US3857043A US 3857043 A US3857043 A US 3857043A US 00323719 A US00323719 A US 00323719A US 32371973 A US32371973 A US 32371973A US 3857043 A US3857043 A US 3857043A
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Prior art keywords
starter
starter motor
circuit
transistor
winding
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US00323719A
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English (en)
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A Habasch
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Robert Bosch GmbH
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Robert Bosch GmbH
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    • 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
    • F02N11/0848—Circuits specially adapted for starting of engines with means for detecting successful engine start, e.g. to stop starter actuation
    • 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

Definitions

  • a voltage produced by the rotation of the armature of the starter motor of a combustion engine is used to control the operation of a threshold switch for cutting off or blocking the operation of the starter motor.
  • a voltage produced by the generator driven by the engine is used only to block operation of the starter motor when the engine is running and the starter motor already stopped.
  • the signal from the generator is provided directly to a cut-off relay through a diode as well as indirectly through an OR-gate at the input of the threshold switch to which the voltage signal from the starter motor itself is also furnished.
  • a storage capacitor is used to prevent premature reactivation of the starter.
  • This invention relates to an interlock system for switching off the starter motor of a combustion engine after a successful start and for preventing untimely activation of the starter motor.
  • the system is designed for combustion engines coupled to a generator connected to charge a battery, which supplies electricity over an ignition switch to the engine and, also, over a further switch to the starter motor.
  • Interlock systems of this general class are known in which a starter blocking relay is provided to prevent the starter motor from being energized while the engine is running or shortly after an unsuccessful attempt to start, and also to prevent the motor from being energized too long after the engine has started.
  • Such switching arrangements involve a considerablee number of relays which are activated in dependence upon the output voltage of the generator. Since the output voltage of the generator of a motor vehicle is to a large extent dependent upon temperature and whereas motor vehicle components are subject to very large temperature variations, and, finally, relays also exhibit temperature dependence in their operation, the known switching systems do not provide with sufficient reliability for the deenergization of the starter motor at the desired operating conditions of the engine.
  • the known switching arrangements for this purpose are cumbersome and expensive on account of the large number of relays and othercomponents used in their construction. I
  • a further object of the invention is to provide an interlock system for this purpose that is inexpensive to produce and is adapted to work safely and reliably under rough operating conditions to which a motor vehicle may be subject.
  • a switch in the current supply of the starter motor for blocking energization of the starter motor is arranged to be dependent for its activation mainly upon a voltage produced by 'the rotation of the armature of the starter motor when that motor is running, but is controllable by the generator voltage when the starter motor is stopped or almost stopped while the engine is running.
  • FIG. 1 is a basic circuit diagram of an interlock system switching off the starter motor and preventing untimely activation of the starter motor;
  • FIG. 2 is a block diagram of the electronic portion of the interlock system shownin FIG. 1;
  • FIG. 3 is a circuit diagram of the electronic portion of the interlock system shown in FIG. 1, and
  • FIG. 4 is a circuit diagram of a modification of part of the circuit of FIG. 1.
  • a starter motor 10 is shown in FIG. 1 in a schematic representation. It has an armature 11, a main stator winding 12 and an auxiliary stator winding 13. The main winding 12 and the auxiliary'winding 13 can be connected to a battery 16 over a switch 14 constituted by the contact of a starter relay 15. For normal activation of the starter relay 15 it is necessary to close both the ignition switch 17 and the starter switch 18. Operation of the latter energizes a winding 19 of a relay 20 which then closes its contacts to energize the starter relay 15 and the holding winding of the stator gear magnet 22, the actuation winding 26 of which is controlled by a contact of starter relay15 through which current is supplied when starter relay 15 operates.
  • starter relay 15 results in applying the conducting bridge 23 against contacts 24 and 25 and thus connects the battery 16 with the auxiliary winding 13.
  • Energization of auxiliary winding 13 of the starter motor 10 turns the armature 11 of the motor slowly and since at the same time the actuation winding 26 of the starter gear magnet is energized in series with the armature 11 the pinion 2 7 of the starter can with relative case be engaged with the ring gear shown at 28, which is connected with the combustion engine not further I shown in the drawing.
  • switching contacts 30 are moved over to their second position. In this position the contacts 30 connect the auxiliary winding 13 of starter-motorltl directly to ground (instead of only to ground through the armature 11).
  • the activation winding 26 of the starter gear magnet 22 is deenergized, so that the pinion is held engaged with the ring gear henceforth only as the result of current through the holding winding 21 of the starter gear magnet.
  • the activation winding 26 of the starter gear magnet 22 is energized in series with the armature 11, first in parallel with the winding 13, at which time most of the voltage appears across the windings 13 and 26, and then, after the relay oper-' ates, in parallel with the winding 12, at which time a great deal more of the voltage appears across the armature 11, so that the current through the winding 26 drops considerably.
  • FIG. 1 the activation winding 26 of the starter gear magnet 22 is deenergized, so that the pinion is held engaged with the ring gear henceforth only as the result of current through the holding winding 21 of the starter gear magnet.
  • the current in the winding 26 is fully cut off at the contacts 30A by operation of the relay 22.
  • a mechanical blocking of the further pulling in of the conducting bridge 23 of the contacts 14 of the starter relay 15 is released by mechanical connection indicated by the broken lines 31, so that the conducting bridge 23 of the starter relay may now connect contact 24 with contact 32.
  • the operation of the threshold switch 34 can also be accomplished by a voltage change produced in the main stator winding 12 as the result of the rotation of the armature 11 or by a voltage induced in an auxiliary winding provided in the stator of the Starter motor.
  • Such an auxiliary winding can be separately provided on the stator, or can be the auxiliary winding 13.
  • the operation of the threshold switch 34 causes current to flow through the winding 35 of a relay 36 to open the contacts 37 located in the curved supply circuit for the relay 19.
  • the relay 36 or its contact 37 may be referred to as a circuit breaker.
  • the opening of the contacts 37 deenergizes relay 19, causing the contacts 20 to open.
  • the winding of starter relay 15 is likewise deenergized and the conducting bridge 23 returns to the position shown in the drawing, so that both the auxiliary winding 13 and the main winding 12 of the starter motor are disconnected from the current supply.
  • the holding winding 21 of the starter gear magnet 22 is deenergized, so that the pinion is pulled out of engagement with the ring gear 28, for example by spring pressure, and the starter motor 10 then gradually runs down and stops.
  • FIG. 2 shows a block diagram of the electronic portion of the interlock circuit of FIG. 1.
  • This electronic portion includes an input stage 33, which contains the OR-gate 33.
  • the threshold switch 34 is connected with the input stage 33' and is also connected with a cut-off signal stage 39 that contains a timed inhibiting circuit.
  • An electrical connection is provided from the cut-off signal stage 39 to the control and switching elements 40 to which the starter relay is connected.
  • Also connected to the starter relay 15 is a cut-off transient detector, which recognizes the end of a false start of the engine.
  • This cut-off transient detector 41 is connected back to the cut-off stage 39. The manner of operation of the circuit will be described with referenceto the diagram shown in greater detail in FIG. 3.
  • the OR-gate 33 is constituted by the two diodes 42 and 43, in series with which input resistors 44 and 45 are respectively connected.
  • resistor 44 On its input side resistor 44 is connected with the armature ll of the starter motor 10 and resistor 45 is connected to the output of the generator 38.
  • the cathodes of diodes 42 and 43 are connected together and their common connection is further connected through a resistor 46 to the base of a transistor 47, which is one of two transistors arranged in a differential amplifier circuit.
  • the collector of transistor'47 is connected over a load resistor 48 with the positive voltage bus 49, while its emitter is connected in common with the emitter of a second transistor 50 to a resistor 51 the other end of which is connected to the negative voltage bus 52.
  • the collector of transistor 50 is likewise connected over a load resistor 53 to the positive voltage bus 49.
  • a feedback resistor 54 is connected between the collector of transistor 50 and the base of transistor 47, thus causing the differential amplifier to operate in the manner of a threshold switch.
  • the output connection of the OR-gate 33 that is to say the cathodes of the diodes 42 and 43, is also connected to a capacitor 55 and to a resistor 56 the other terminals of which are both connected with the negative voltage bus.
  • the base of a first transistor 58 is connected to the output of the threshold switch, that is, to the collector of transistor 47, over a base series resistor 57.
  • the emitter of transistor 58 is connected over a resistor 59 with the positive voltage bus 49, while the collector of the same transistor is connected over a resistor 60 with the negative voltage bus 52.
  • the anode of a diode 61 is connected to the collector of transistor 58, while the cathode of the diode 61 is connected to a capacitor 62 the other terminal of which is connected to the negative voltage bus 52.
  • the cathode of diode 61 is also connected to the base series resistor 63 of a second transistor 64.
  • the emitter of this second transistor 64 is directly connected to the nega tive voltage bus 52, while the collector of that transistor is connected not only over a resistor 65 with the positive voltage bus 49 but also over base series resistor 66 to the base of a third transistor 67, the emitter of which is directly connected to the positive voltage bus 49 and the collector of which has a connection over a diode 68 with the control winding 35 of a relay 36.
  • the same terminal of the control winding 35 of relay 36 is also connected over another diode 69 directly to the output of generator 38.
  • the other end of the control winding 35 of relay 36 is connected to the negative voltage bus 52 and at this point a Zener diode 70 is connected between the negative voltage bus 52 and the positive voltage bus 49 to regulate the voltage difference.
  • the contacts 37 of relay 36 lie, as already shown in FIG. I, in the current supply circuit of relay 19, so that it is not necessary in FIG. 3 to show the connection of contacts 37 to the starter switch 18 not shown in this figure.
  • a diode 71 is connected, which has the function of suppressing voltage peaks occurring when the relay operates or releases.
  • the contacts 20 of relay 19 are connected on one side to the positive voltage bus 49 and on the other side to a conductor leading to the starter relay 15.
  • the starter relay 15 at this same connection is also connected over a resistor 72 to the cathode of a diode 73, the anode of which is connected to the emitter of a transistor 74.
  • the base of transistor 74 is directly connected to the negative voltage bus 52, while the collector of that transistor is connected over a resistor 75 to the cathode of one of two series connected diodes 76 and 77.
  • the anode of diode 77 is connected to the emitter of a transistor 78 the collector of which is connected back to the junction of the collector of transistor 47 and the base series resistance 57.
  • the base of transistor 78 is connected to a timing circuit consisting of a capacitor 79 and a resistor 80, with the other terminals of that capacitor and that resistor being connected to the negative voltage bus 52.
  • the base of transistor 78 is also connected to the cathode of a diode 81, the anode of which is connected over a resistor 82 with the starter relay 15.
  • a diode 83 In parallel to the control winding 35 of relay 36 is connected a diode 83 and a capacitor 84.
  • transistor 47 While transistor 47 conducts, the potential at its collector is sufficiently negative to switch transistor 58 into its conducting condition.
  • transistor 58 conducts a positive signal is provided over diode 61 and resistor 63 to the base of transistor 64 and switches the latter to its conducting condition.
  • transistor 64 conducts a negative signal will be produced on the base of transistor 67, which will also be put into conducting condition, since it is of the type complementary to the transistor 64, where upon approximately the entire supply voltage will be applied to. the control winding 35 of relay 36.
  • Energization of relay 36 opens its contacts 37, thus interrupting the current supply for relay 19, which causes the circuit element of that relay to open the contacts 20 by taking the position shown in the drawing, which. is to say that the current supply for the starter relay is interrupted, which in turn deenergizes the starter motor 10 and withdraws the pinion 27 of the starter from the ring gear 28 of the engine, so that the starter motor coasts to a stop.
  • a signal provided by the generator 38 is connected over a resistor 45 and the diode 43 to the base of transistor 47. This signal keeps transistor 47 in its conducting condition, so that relay 36 remains activated and the current supply for relay 19 remains interrupted.
  • a further connection between the generator 38 over diode 69 to the control winding 35 of relay 36 is provided, so that so long as the generator 38 is operating it is assured over the relatively direct path through diode 69 that the starter motor 10 cannot be activated.
  • the diode 68 is interposed between the collector of transistor 67 and the connection between diode 69 and the control winding 35 of relay 36.
  • the capacitor 62 is provided and so connected that it will be charged by conduction through transistor 58 andhold transistor 64 in its non-conducting condition after the disappearance of an input signal at the resistors 44 and 45.
  • control winding 35 of relay 36 continues to be energized and contacts 37 will be held open as the result of the discharge currentv of capacitor 36 for a definite time determined by the magnitude of capacitor 62, since as already explained capacitor 62 provides a positive signal to the base of transistor 64 so that transistor 64 and transistor 67 both remain in their conducting condition, so that for the period determined by capacitor 62 a voltage somewhat approaching the full supply voltage is applied to the control winding 35 of relay 36.
  • the current supply'circuit of the winding of relay 19 is held open at the contacts 37 the current supply of starter relay 15 is blocked at the contacts 20.
  • starter relay 15 A further precaution against untimely activation of starter relay 15 is provided by utilizing the negative voltage peaks produced by starter relay 15 when its current supply is cut off.
  • a negative voltage peak is produced which proceeds over resistance 72 and diode 73 to the emitter of transistor 74. Since the base of transistor 74 is permanently connected with the negative voltage bus 52, transistor 74 is switched into its conducting condition by the negative voltage pulse on its emitter and then provides a signal over resistor 75 and diodes 76 and 77 to the emitter of transistor 78, where this sig-' nal then also appears at the base, of transistor 78 if a positive signal is present at that point.
  • A' positive signal is indeed present at the base of transistor 78 when relay 19 was energized a sufficiently long time beforehand to have closed contacts 28, so that through the conditions described the charging of capacitor 79 can take place over resistor 82 and diode 81.
  • the result can be otained that voltage peaks produced by bouncing of the switching contacts 28 are insufficient to charge capacitor 79 to such an extent that a positive signal will be applied to the base of transistor 78 that is of sufficient magnitude to switch transistor 78 into its conducting condition.
  • capacitor 79 is charged enough so that after interruption of the current supply circuit of relay 15 by contacts 20 the voltage on capacitor 79 is sufficient to put transistor 78 into its conducting condition, then a signal initiated by a negative transient pulse of the starter relay will reach the base of transistor 58 and hold it in its conducting condition. In consequence, the operation of transistor 64 and 67 will assure that substantially the full supply voltage will be applied to the control winding 35 of relay 36 and that, in addition, the conduction of transistor 58 will allow capacitor 62 to charge. After the pulse at the starter relay 15 drops off, the reoperation of starter relay will then also be prevented by the condition of capacitor 62 for a definite period of time, as previously described.
  • the provision of diode 83 and capacitors 55 and 84 suppress the effects of disturbing voltages present in the current supply network of the motor vehicle.
  • the block 39 which was referred to as a cut-off signal stage including a timed inhibiting circuit may also be referred to as an interconnecting circuit including delay means for prolonging the blocking signal provided by the threshold switch means designated by the block 34'of FIG. 2.
  • the block '40 which was referred to as designating switching elements may be referred to as a circuit breaker means breaking the operating circuit of the relay coil 15 and the block 41, previously designated as the cut-off transient detector may be referred to as part of the delay means for prolonging the block or cut-off signal (it refers to the circuit including the'transistors 74 and 78 and the capacitor 79).
  • An interlock system for cutting off or blocking the operation of the starter motor of a combustion engine comprising:
  • a starter motor having an armature windingand at least one stator winding
  • a manual starter switch connectable to said battery through said engine ignition switch and connected in circuit with said starter motor
  • said blocking means including OR-gate means having one input responsive to said voltage generated by revolution of said armature of said starter motor while said starter motor is energized, threshold switch means responsive to said OR-gate means, circuit breaker means for breaking the operating circuit of said electrically controlled starter switch means and circuit means interconnecting said threshold switch means and said circuit breaker means and having delay means for prolonging operation of said circuit breaker means for a predetermined interval after return of said threshold switch means to its quiescent condition.
  • said threshold switch means (34) comprises a differential amplifier to one input of which a portion of the output voltage of said battery is provided as a reference voltage and to the other input to which the output of said OR-gate means is provided.
  • said delay means includes a storage element (62) arranged to be charged after the operation of said threshold switch means (34) and thereby to hold said circuit breaker means (35, 36,37) operated and said control circuit open for a predetermined period after the return of said threshold switch means (34) to its unoperated condition.
  • interconnecting circuit means includes:
  • a first transistor (58) arranged to be responsive to the operation of said differential amplifier having output electrode connected to a capacitor (62) included in said delay means;
  • a third transistor (67) adapted to be activated by said second transistor and adapted to activate the operating circuit (35) of said circuit breaker means (35,36, 37).
  • said starter motor has a stator winding arranged to be energized in series with its armature when full power is applied to said starter motor, the armature having a winding one end of which is connected in series with said stator winding as aforesaid and the other end of which is grounded to the motor structure, and in which system the connection of said armature winding to said stator winding is also connected to one input of said OR-gate means to provide thereto a voltage induced in said armature winding as the result of the revolution of said armature (11).

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
US00323719A 1972-02-21 1973-01-15 Interlock circuit for blocking operation of starter motor of a combustion engine Expired - Lifetime US3857043A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2208045A DE2208045A1 (de) 1972-02-21 1972-02-21 Einrichtung zur steuerung und kontrolle des andrehmotors einer brennkraftmaschine

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US3857043A true US3857043A (en) 1974-12-24

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US00323719A Expired - Lifetime US3857043A (en) 1972-02-21 1973-01-15 Interlock circuit for blocking operation of starter motor of a combustion engine

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US (1) US3857043A (enrdf_load_stackoverflow)
JP (1) JPS4896929A (enrdf_load_stackoverflow)
DE (1) DE2208045A1 (enrdf_load_stackoverflow)
FR (1) FR2173581A5 (enrdf_load_stackoverflow)
IT (1) IT973279B (enrdf_load_stackoverflow)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032792A (en) * 1975-04-23 1977-06-28 U.S. Philips Corporation Automotive starter lockout system
US4045062A (en) * 1975-12-17 1977-08-30 General Motors Corporation Electric cranking motor automatic disconnect and lockout circuit
US4070585A (en) * 1975-02-13 1978-01-24 U.S. Philips Corporation Starter motor lockout system
US4104688A (en) * 1976-12-13 1978-08-01 Eaton Corporation Starter motor protector circuit
US4209816A (en) * 1978-07-07 1980-06-24 Eaton Corporation Protective control for vehicle starter and electrical systems
US4415812A (en) * 1982-01-11 1983-11-15 General Motors Corporation Electric starting system
US4490620A (en) * 1983-09-12 1984-12-25 Eaton Corporation Engine starter protective and control module and system
DE4338638A1 (de) * 1992-12-23 1994-06-30 Valeo Equip Electr Moteur Steuerkreis für einen Kraftfahrzeug-Anlasser
US5402758A (en) * 1993-01-16 1995-04-04 Mercedes-Benz Ag Starter protection device
US20020047272A1 (en) * 2000-09-26 2002-04-25 Yasuyuki Hiyama Prime mover starting control apparatus
US6456034B1 (en) * 1998-09-16 2002-09-24 Valeo Equipments Electriques Moteur Device for controlling the power supply of an electric starter motor of a motor vehicle and a starter unit containing such a device
US20050280262A1 (en) * 2004-06-22 2005-12-22 Seok Kim Device to prevent sudden starting of automobiles
US7061130B1 (en) 2004-02-03 2006-06-13 Dana Corporation Method of determining transition from starter to alternator function by monitoring starter/alternator motor phase voltage or current
US20080115753A1 (en) * 2006-11-22 2008-05-22 Mitsubishi Electric Corporation Engine control apparatus
US20140102395A1 (en) * 2012-10-17 2014-04-17 Denso Corporation Engine starter designed to minimize mechanical noise at start of engine
US11719213B2 (en) * 2019-10-22 2023-08-08 Illinois Tool Works Inc. Systems and methods for preventing activation of a starter based on engine speed

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2700982C2 (de) * 1977-01-12 1984-03-08 Robert Bosch Gmbh, 7000 Stuttgart Schaltanordnung für elektrische Andrehmotoren
DD160551A3 (de) * 1981-06-02 1983-09-14 Elektromotorenwerk Dresden Dre Schaltungsanordnung fuer das anlassen von motoren mittels elektrischem anlassmotor

Citations (9)

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Publication number Priority date Publication date Assignee Title
US2016818A (en) * 1933-04-10 1935-10-08 Eclipse Machine Co Semiautomatic starter control
US2020750A (en) * 1932-03-30 1935-11-12 Eclipse Machine Co Automatic starting mechanism
US3573480A (en) * 1969-09-17 1971-04-06 Gen Motors Corp Electric cranking motor automatic disconnect and lockout circuit
US3573481A (en) * 1969-09-24 1971-04-06 Gen Motors Corp Electric cranking motor automatic disconnect and lockout circuit
US3577001A (en) * 1969-10-31 1971-05-04 Gen Motors Corp Electric cranking motor automatic disconnect and lockout circuit
US3628041A (en) * 1970-11-23 1971-12-14 Gen Motors Corp Electric cranking motor automatic disconnect and lockout circuit
US3629597A (en) * 1969-05-12 1971-12-21 David Wiley Engine-starting systems
US3681658A (en) * 1969-12-08 1972-08-01 Hitachi Ltd Device for protecting a starting motor of an internal combustion engine
US3712283A (en) * 1970-09-10 1973-01-23 Bosch Gmbh Robert Safety arrangement for starting motor in internal combustion engines

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2020750A (en) * 1932-03-30 1935-11-12 Eclipse Machine Co Automatic starting mechanism
US2016818A (en) * 1933-04-10 1935-10-08 Eclipse Machine Co Semiautomatic starter control
US3629597A (en) * 1969-05-12 1971-12-21 David Wiley Engine-starting systems
US3573480A (en) * 1969-09-17 1971-04-06 Gen Motors Corp Electric cranking motor automatic disconnect and lockout circuit
US3573481A (en) * 1969-09-24 1971-04-06 Gen Motors Corp Electric cranking motor automatic disconnect and lockout circuit
US3577001A (en) * 1969-10-31 1971-05-04 Gen Motors Corp Electric cranking motor automatic disconnect and lockout circuit
US3681658A (en) * 1969-12-08 1972-08-01 Hitachi Ltd Device for protecting a starting motor of an internal combustion engine
US3712283A (en) * 1970-09-10 1973-01-23 Bosch Gmbh Robert Safety arrangement for starting motor in internal combustion engines
US3628041A (en) * 1970-11-23 1971-12-14 Gen Motors Corp Electric cranking motor automatic disconnect and lockout circuit

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4070585A (en) * 1975-02-13 1978-01-24 U.S. Philips Corporation Starter motor lockout system
US4032792A (en) * 1975-04-23 1977-06-28 U.S. Philips Corporation Automotive starter lockout system
US4045062A (en) * 1975-12-17 1977-08-30 General Motors Corporation Electric cranking motor automatic disconnect and lockout circuit
US4104688A (en) * 1976-12-13 1978-08-01 Eaton Corporation Starter motor protector circuit
US4209816A (en) * 1978-07-07 1980-06-24 Eaton Corporation Protective control for vehicle starter and electrical systems
US4415812A (en) * 1982-01-11 1983-11-15 General Motors Corporation Electric starting system
US4490620A (en) * 1983-09-12 1984-12-25 Eaton Corporation Engine starter protective and control module and system
DE4338638A1 (de) * 1992-12-23 1994-06-30 Valeo Equip Electr Moteur Steuerkreis für einen Kraftfahrzeug-Anlasser
US5402758A (en) * 1993-01-16 1995-04-04 Mercedes-Benz Ag Starter protection device
US6456034B1 (en) * 1998-09-16 2002-09-24 Valeo Equipments Electriques Moteur Device for controlling the power supply of an electric starter motor of a motor vehicle and a starter unit containing such a device
US20020047272A1 (en) * 2000-09-26 2002-04-25 Yasuyuki Hiyama Prime mover starting control apparatus
US6597071B2 (en) * 2000-09-26 2003-07-22 Aisin Aw Co., Ltd. Prime mover starting control apparatus
US7061130B1 (en) 2004-02-03 2006-06-13 Dana Corporation Method of determining transition from starter to alternator function by monitoring starter/alternator motor phase voltage or current
US20050280262A1 (en) * 2004-06-22 2005-12-22 Seok Kim Device to prevent sudden starting of automobiles
US7145260B2 (en) * 2004-06-22 2006-12-05 Hyundai Motor Company Device to prevent sudden starting of automobiles
US20080115753A1 (en) * 2006-11-22 2008-05-22 Mitsubishi Electric Corporation Engine control apparatus
US7614377B2 (en) * 2006-11-22 2009-11-10 Mitsubishi Electric Corporation Engine control apparatus
US20140102395A1 (en) * 2012-10-17 2014-04-17 Denso Corporation Engine starter designed to minimize mechanical noise at start of engine
US9404462B2 (en) * 2012-10-17 2016-08-02 Denso Corporation Engine starter designed to minimize mechanical noise at start of engine
US11719213B2 (en) * 2019-10-22 2023-08-08 Illinois Tool Works Inc. Systems and methods for preventing activation of a starter based on engine speed

Also Published As

Publication number Publication date
FR2173581A5 (enrdf_load_stackoverflow) 1973-10-05
JPS4896929A (enrdf_load_stackoverflow) 1973-12-11
DE2208045A1 (de) 1972-08-30
IT973279B (it) 1974-06-10

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