WO2018033282A1 - Dispositif démarreur équipé d'une résistance ctn pour un moteur à combustion interne - Google Patents

Dispositif démarreur équipé d'une résistance ctn pour un moteur à combustion interne Download PDF

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Publication number
WO2018033282A1
WO2018033282A1 PCT/EP2017/065477 EP2017065477W WO2018033282A1 WO 2018033282 A1 WO2018033282 A1 WO 2018033282A1 EP 2017065477 W EP2017065477 W EP 2017065477W WO 2018033282 A1 WO2018033282 A1 WO 2018033282A1
Authority
WO
WIPO (PCT)
Prior art keywords
internal combustion
combustion engine
circuit
ntc resistor
ntc
Prior art date
Application number
PCT/EP2017/065477
Other languages
German (de)
English (en)
Inventor
Sven Hartmann
Harun Erismis
Original Assignee
Seg Automotive Germany 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 Seg Automotive Germany Gmbh filed Critical Seg Automotive Germany Gmbh
Publication of WO2018033282A1 publication Critical patent/WO2018033282A1/fr

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 or control means 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
    • F02N2300/00—Control related aspects of engine starting
    • F02N2300/10—Control related aspects of engine starting characterised by the control output, i.e. means or parameters used as a control output or target
    • F02N2300/106—Control of starter current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
    • H01C1/1413—Terminals or electrodes formed on resistive elements having negative temperature coefficient
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/04—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/06—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material including means to minimise changes in resistance with changes in temperature

Definitions

  • the present invention relates to a starting device for an internal combustion engine of a motor vehicle with an electric machine that is set up to start the internal combustion engine.
  • a starting device for an internal combustion engine of a motor vehicle has an electrical machine which is set up to start the internal combustion engine, and an electrical system with a power supply, in which the electric machine and at least one consumer are integrated.
  • at least one NTC resistor is provided in a circuit as part of the vehicle electrical system, via which a current flows to operate the electric machine.
  • the circuit has such a thermal resistance behavior that a voltage drop in the electrical system during a short-circuit current flow when starting the internal combustion engine is so low that at the same time the at least one consumer can be supplied with sufficient for normal operation voltage, and that a power output of the electrical machine see after the short circuit current is so great that starting the
  • NTC resistor also referred to as a thermistor, is a resistance or resistance element which, in contrast to conventional conductors such as most metals, has lower resistance with increasing temperature.
  • the abbreviation NTC stands for Negative Temperature Coefficient.
  • NTC resistors are mostly semiconductor materials, some compound semiconductors, and various metallic alloys.
  • An NTC resistor can be produced, for example, by film casting or powder sintering.
  • the resistance during the short-circuit current that is to say during the start of the starting of the internal combustion engine, can be chosen large enough so that voltage dips are reduced or prevented, but reduced
  • the resistance of the NTC element by the current flow and the associated heating then not far enough, so that an optimal power output of the electric machine can be achieved.
  • the simple NTC resistor is chosen lower, you can a good power output can be achieved after the short-circuit current, however, the resistance is lower even during the short-circuit current, whereby a voltage dip can not be prevented.
  • the thermal resistance behavior of the circuit is essentially due to the at least one NTC resistor, materials of
  • the at least one NTC resistor is provided inside and / or outside the electric machine. It takes into account the fact that it does not primarily depend on the exact arrangement of the NTC resistor in the circuit. Rather, for example, a structurally advantageous arrangement can be selected. Also, the thermal connection, in particular the influence of the chosen location of the arrangement on the temperature behavior of the NTC-Wderstands be considered. Furthermore, it is also possible, for example, to arrange two NTC-Wderconference at different positions.
  • a logarithmic resistance-temperature profile of the at least one NTC resistor has a substantially constant gradient.
  • Weighting of the respective chemical elements also meet the aforementioned electrical and thermal properties.
  • by one of the aforementioned material combinations can be achieved in particular in a warm start (at a temperature of 273 K to 298 K) that the NTC resistor resistance at the beginning of the starting phase, before the short-circuit current, in a range between 5 and 20 mfi, in a range of short-circuit current between 3 and 10 mfi and at the end of starting in a range between 0.2 and 0.5 mQ (or alternatively up to 2 mQ).
  • FIGS. 1a and 1b schematically show a starting device according to the invention in two preferred embodiments as an electrical circuit.
  • Figures 2a and 2b show current and voltage curves when starting an internal combustion engine with non-inventive starting devices.
  • FIG. 3 shows current and voltage curves when starting an internal combustion engine with a starting device according to the invention in a preferred embodiment.
  • Figures 4a and 4b show an exemplary thermal resistance behavior of an NTC-Wderstands in a starting device according to the invention in a preferred embodiment.
  • FIG. 1 a schematically illustrates a starting device 100 according to the invention in a preferred embodiment as an electrical circuit.
  • the starting device 100 has an electrical system 105 into which an electrical machine 110 and a voltage supply 120 designed as a battery are integrated. they are.
  • the electric machine 110 is configured to start an internal combustion engine of a motor vehicle, in which the starting device 100 can be integrated.
  • the electric machine is referred to in this context as a starter. It is understood that the electric machine must be coupled or coupled for torque transmission to the internal combustion engine.
  • the load 140 may be an engine control unit configured to drive both the electric machine 110 and the engine (not shown).
  • the consumer 141 can be an example of consumers who are usually present in a motor vehicle, such as, for example, further control devices, and in particular must or must also function properly during starting of the internal combustion engine.
  • an internal resistance Rtatt of the battery 120 and a resistance Rßord (line resistance) are shown, the latter being representative of the resistance of the electrical system 105.
  • a circuit is referred to as a part of the electrical system 105, in which in the operation of the electric machine 1 10th
  • an NTC resistor 130 and a switch 135 are further provided.
  • the switch 135 is provided to close the circuit 160 to operate the electric machine 110 to start the engine.
  • the switch 135 can be controlled by the control unit of the electric machine 110, that is, for example, by the engine control unit 140.
  • the NTC Wderstand 130 is exemplified in the circuit 160 between the electrical machine see 1 10 and the switch 135 is arranged.
  • the switch 135 is typically part of the starter relay and is usually controlled via pilot control relay.
  • the NTC-Wderstand 130 in the electrical machine 110 ie, for example, on or within the housing, can be arranged.
  • a current I which flows in the circuit 160
  • a voltage U which is applied to the electrical system 105 and thus also to the circuit 160, shown.
  • FIG. 2 a schematically shows current and voltage curves when starting an internal combustion engine with a starting device not according to the invention.
  • the current I in A and the voltage U in V are plotted against the time t in s.
  • FIG. 2 b shows current and voltage curves during starting of an internal combustion engine with a further starter device not according to the invention.
  • the current I in A and the voltage U in V are plotted against the time t in s.
  • Current flow and voltage curve Ui correspond to the
  • the current increases from zero to about 1000 A at the time t "0.005 s. At this time, the so-called.
  • FIG. 3 shows current and voltage curves when starting an internal combustion engine with a starting device according to the invention in a preferred embodiment.
  • the current I in A and the voltage U in V are plotted against the time t in s.
  • Current profile and voltage curve Ui correspond to the curves without using an NTC resistor, as shown in Figures 2a and 2b.
  • U is now called a current waveform, as it can occur when starting the internal combustion engine and thus the operation of the electric machine with the use of an NTC resistor in the circuit in an embodiment of the invention.
  • thermal Wderstands with the associated curves U and U 4 not only by the NTC-Wderstand itself, but also by a vote of the materials of the contacts of the NTC resistor, the electrical properties of the NTC resistor and the Contacts of the terminals of the electrical machine is characterized.
  • a detailed design of a suitable thermal network for the function is crucial (thermal network see previous pages).
  • FIG. 4 a shows schematically an exemplary thermal resistance behavior of an NTC-Wderstands of a starting device according to the invention in a preferred embodiment.
  • the resistance R of the NTC resistor in ⁇ and in logarithmic representation over the temperature T in K is shown.
  • B shows a profile of a constant typical for an NTC resistor, with which reference to the formula the temperature-dependent resistance of the NTC resistor can be described at least approximately.
  • RN denotes a resistance of the NTC-Wderstands at the temperature TN, which is usually a nominal temperature of 298 K is.
  • a specific resistance of the NTC resistor is, for example, between 2.1 and 2.8 .mu.m at room temperature, ie. 2998 K. This results in a temperature coefficient or B value of between 2500 K and 3500 K.
  • the temperature T is indicated here in ° C.

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)
  • Emergency Protection Circuit Devices (AREA)

Abstract

L'invention concerne un dispositif démarreur (100) pour un moteur à combustion interne de véhicule automobile, le dispositif démarreur comprenant un moteur électrique (110) qui est conçu pour démarrer le moteur à combustion interne, et un réseau de bord (105) présentant une alimentation en tension (120), réseau de bord dans lequel le moteur électrique (110) et au moins un consommateur (140, 141) sont intégrés. Au moins une résistance CTN (130) est située dans un circuit électrique (160) faisant partie du réseau de bord (105) par le biais duquel un courant circule pour le fonctionnement du moteur électrique (110). Le circuit électrique (160) présente un comportement de résistance thermique basé sur un réseau thermique conçu spécialement tel qu'une chute de tension dans le réseau de bord (105) pendant une conduction de courant de court-circuit lors du démarrage du moteur à combustion interne est si faible que ledit au moins un consommateur (140, 141) peut être alimenté simultanément en une tension suffisante pour un fonctionnement normal et tel qu'une puissance fournie par le moteur électrique (110) après le courant de court-circuit est si grande que le démarrage du moteur à combustion interne peut être achevé.
PCT/EP2017/065477 2016-08-15 2017-06-23 Dispositif démarreur équipé d'une résistance ctn pour un moteur à combustion interne WO2018033282A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016215142.8A DE102016215142A1 (de) 2016-08-15 2016-08-15 Starteinrichtung für eine Brennkraftmaschine eines Kraftfahrzeugs
DE102016215142.8 2016-08-15

Publications (1)

Publication Number Publication Date
WO2018033282A1 true WO2018033282A1 (fr) 2018-02-22

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Country Link
DE (1) DE102016215142A1 (fr)
WO (1) WO2018033282A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109790811A (zh) * 2016-09-21 2019-05-21 Seg汽车德国有限公司 用于内燃机的配备有两个并联的ntc电阻的起动机构

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7024463B2 (ja) * 2018-02-01 2022-02-24 株式会社Ｇｓユアサ 管理装置、蓄電装置、蓄電素子の管理方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4122252A1 (de) 1990-07-18 1992-01-23 Volkswagen Ag Starteinrichtung fuer eine brennkraftmaschine
DE4106247C1 (en) 1991-02-28 1992-04-30 Robert Bosch Gmbh, 7000 Stuttgart, De Starter circuit for IC engine - incorporates NTC resistor in parallel with relay to inhibit starting at very low temp.
WO2004093102A1 (fr) * 2003-04-16 2004-10-28 Robert Bosch Gmbh Moteur electrique
DE102007036789A1 (de) 2007-08-03 2009-02-05 Robert Bosch Gmbh Startvorrichtung mit Temperaturkompensation
DE102012215338A1 (de) 2012-08-29 2014-03-06 Robert Bosch Gmbh Startvorrichtung für eine Brennkraftmaschine
WO2017102403A1 (fr) * 2015-12-17 2017-06-22 Robert Bosch Gmbh Dispositif démarreur équipé d'une résistance ntc pour un moteur à combustion interne

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4122252A1 (de) 1990-07-18 1992-01-23 Volkswagen Ag Starteinrichtung fuer eine brennkraftmaschine
DE4106247C1 (en) 1991-02-28 1992-04-30 Robert Bosch Gmbh, 7000 Stuttgart, De Starter circuit for IC engine - incorporates NTC resistor in parallel with relay to inhibit starting at very low temp.
WO2004093102A1 (fr) * 2003-04-16 2004-10-28 Robert Bosch Gmbh Moteur electrique
DE10317466A1 (de) 2003-04-16 2004-12-09 Robert Bosch Gmbh Elektromotor
DE102007036789A1 (de) 2007-08-03 2009-02-05 Robert Bosch Gmbh Startvorrichtung mit Temperaturkompensation
DE102012215338A1 (de) 2012-08-29 2014-03-06 Robert Bosch Gmbh Startvorrichtung für eine Brennkraftmaschine
WO2017102403A1 (fr) * 2015-12-17 2017-06-22 Robert Bosch Gmbh Dispositif démarreur équipé d'une résistance ntc pour un moteur à combustion interne

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "Thermistor - Wikipedia", 26 July 2017 (2017-07-26), XP055404630, Retrieved from the Internet <URL:https://en.wikipedia.org/wiki/Thermistor#NTC> [retrieved on 20170907] *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109790811A (zh) * 2016-09-21 2019-05-21 Seg汽车德国有限公司 用于内燃机的配备有两个并联的ntc电阻的起动机构
CN109790811B (zh) * 2016-09-21 2021-02-09 Seg汽车德国有限公司 用于内燃机的配备有两个并联的ntc电阻的起动机构

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