EP3571388A2 - Procede de redemarrage d'un moteur thermique au moyen d'un alterno-demarreur - Google Patents
Procede de redemarrage d'un moteur thermique au moyen d'un alterno-demarreurInfo
- Publication number
- EP3571388A2 EP3571388A2 EP18704279.1A EP18704279A EP3571388A2 EP 3571388 A2 EP3571388 A2 EP 3571388A2 EP 18704279 A EP18704279 A EP 18704279A EP 3571388 A2 EP3571388 A2 EP 3571388A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- starter
- alternator
- control module
- heat engine
- engine
- 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.)
- Withdrawn
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
- F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
-
- 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
- F02N11/04—Starting of engines by means of electric motors the motors being associated with current generators
-
- 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
- F02N11/0848—Circuits or control means 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
- 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
-
- 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
- F02N2200/04—Parameters used for control of starting apparatus said parameters being related to the starter motor
- F02N2200/041—Starter speed
-
- 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
- F02N2200/04—Parameters used for control of starting apparatus said parameters being related to the starter motor
- F02N2200/045—Starter temperature or parameters related to it
-
- 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
- F02N2250/00—Problems related to engine starting or engine's starting apparatus
- F02N2250/04—Reverse rotation 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
- F02N2250/00—Problems related to engine starting or engine's starting apparatus
- F02N2250/06—Engine stall and related control features, e.g. for automatic restart
-
- 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
- F02N2300/20—Control related aspects of engine starting characterised by the control method
- F02N2300/2011—Control involving a delay; Control involving a waiting period before engine stop or engine start
-
- 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
- F02N2300/30—Control related aspects of engine starting characterised by the use of digital means
- F02N2300/302—Control related aspects of engine starting characterised by the use of digital means using data communication
- F02N2300/304—Control related aspects of engine starting characterised by the use of digital means using data communication with other systems inside the vehicle
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Definitions
- the present invention relates to a method of restarting a heat engine by means of an alternator-starter.
- Such a system is based on the use of a motor calculator able to control an alternator-starter in a start mode. In this mode, the control drives the stator field using power electronics as well as the rotor field of the machine using a chopper to create a starting torque.
- the invention aims to effectively remedy this drawback by proposing a method of restarting a motor vehicle engine by an alternator-starter coupled to said engine and comprising a control module, said method comprising:
- a first step of activating the alternator-starter to generate a starting torque of the heat engine characterized in that, in the event of failure of the start of the engine, said method comprises:
- rebound phase is meant a phase in which the speed variation of the engine changes from negative to positive.
- the invention thus makes it possible, because of the control of the alternator-starter in the rebound phase of the engine, to optimize the chances of success of the second start of the engine using the kinetic energy of the crankshaft.
- the predetermined duration is calculated to allow a cooling of the control module, so that the temperature of the control module of the alternator-starter becomes lower than a maximum threshold of operating temperature.
- the predetermined duration is in particular between 100 ms and 500 ms.
- the predetermined duration can be adjusted according to the temperature of the control module.
- the torque suspension step is implemented following the activation of a thermal protection of the control module.
- the thermal protection is activated when a junction temperature of a switching element of the control module exceeds a threshold.
- the junction temperature of the switching member is estimated, in particular from a temperature measured at the level of the control module and from a measurement of rotation speed of the alternator starter.
- the junction temperature of the switching member is a measured temperature.
- the thermal protection is activated following the flow of a predetermined operating time of the inverter which depends on a temperature range of the control module.
- the method comprises a step of abandoning said method.
- the alternator-starter is able to communicate with an engine ECU according to a communication protocol of LIN or CAN type.
- the invention also relates to a control module comprising a memory storing software instructions for the implementation of the restart process of the heat engine as defined above.
- FIG. 1 is a functional schematic representation of the alternator-starter implementing the restarting method of the heat engine according to the present invention
- FIG. 2 is a timing diagram illustrating the control according to the invention of the alternator-starter during a failure of the first start followed by the success of the second start of the heat engine;
- FIG. 3 is a timing diagram illustrating the control according to the invention of the alternator-starter during a failure of the first and second starts of the heat engine;
- FIG. 4 is a graphical representation illustrating the duration of activation of the inverter as a function of the temperature of the control module.
- Figure 1 schematically shows an alternator-starter 10 according to the invention.
- the alternator-starter 10 is intended to be installed in a vehicle having an on-board electrical network connected to a battery 12.
- the on-board network may be of 12V, 24V, or 48V type.
- the alternator-starter 10 is coupled to a heat engine 1 1 in a manner known per se by a belt system 1 1 'or chain implanted accessory facade.
- alternator-starter 10 is able to communicate with a motor ECU 15 according to a communication protocol of LIN type ("Local Interconnect Network” in English or “Réseau Internet Local” in French) or CAN ("Controller Area Network” "in English which is a serial system bus).
- LIN type Lical Interconnect Network
- CAN Controller Area Network
- the alternator-starter 10 may operate in alternator mode also called generator mode, or in engine mode comprising a starter mode, known to those skilled in the art.
- the starter-alternator 10 comprises in particular an electrotechnical part 13 and a control module 14.
- the electrotechnical part 13 comprises an induced element 18 and an inductive element 19.
- the armature 18 is the stator
- the inductor 19 is a rotor comprising an excitation coil 20.
- the stator 18 comprises a number N of phases.
- the stator 18 comprises three phases U, V and W.
- the number N of phases may be equal to 5 for a pentaphase machine, to 6 for a hexaphase or two-phase type machine or to 7 for a heptaphase machine.
- the phases of the stator 18 may be coupled in a triangle or star. A combination of triangle and star coupling is also possible.
- the control module 14 comprises an excitation circuit 141 incorporating a chopper for generating an excitation current which is injected into the excitation coil 20. The measurement of the excitation current can be carried out for example by means of FIG. a shunt type resistor.
- the measurements of the angular position and the angular velocity of the rotor 19 may be carried out by means of analog sensors with hall effect H1, H2, H3 and an associated magnetic target 25 which is integral in rotation with the rotor 19.
- the control module 14 further comprises a control circuit 142, comprising for example a microcontroller, which drives an inverter 26 as a function of a control signal coming from the engine control unit 15 and received via a signal connector 24.
- a control circuit 142 comprising for example a microcontroller, which drives an inverter 26 as a function of a control signal coming from the engine control unit 15 and received via a signal connector 24.
- the inverter 26 has arms each having two switching elements for selectively connecting a corresponding U, V, W phase of the stator 18 to the ground or to the supply voltage of the battery 12 as a function of their on-state or blocked state.
- the switching elements are preferably MOSFET power transistors.
- a module 143 whose operation is detailed in more detail below provides the thermal protection of the alternator-starter 10.
- the control module 14 comprises a memory storing software instructions for the implementation of the control strategies of the inverter 26 described below.
- a start request of the engine 1 1 emitted by the engine computer 15 is received by the alternator-starter 10.
- the signal MM_R issued by the engine computer 15 thus passes from the state corresponding to the neutral state N in the state corresponding to a starting mode R.
- the alternator-starter 10 is activated at time t2 so that an excitation current is injected into the excitation coil 20 in order to flow the rotor over the period T1.
- the status signal MM_Alt of the alternator-starter thus changes from the state corresponding to the neutral state of the machine to a state corresponding to a starting mode R.
- the alternator-starter 10 is controlled by moment t3 to generate a starting torque of the heat engine 1 1.
- the thermal protection managed by the module 143 is activated following the exceeding of a threshold by the junction temperature of at least one switching element of the control module 14.
- the junction temperature of the switching member can be estimated, in particular from a temperature measured at the level of the control module 14 and a rotation speed measurement of the alternator-starter 10. Alternatively, the junction temperature of the switching member may be a measured temperature.
- the thermal protection is activated following the flow of a predetermined operating time of the inverter 26 which depends on a temperature range of the control module 14.
- a predetermined operating time of the inverter 26 which depends on a temperature range of the control module 14.
- FIG. define three operating times K1, K2, K3 each respectively corresponding to a temperature range P1, P2, P3 of the control module 14. The higher the temperature range, the longer the operating time K1, K2, K3 of the inverter 26 is short.
- the number of temperature ranges and the values of the operating times can be adapted according to the application.
- the control module 14 controls a suspension of the torque generated by the alternator-starter 10 for a predetermined duration T2.
- the corresponding signal S_c then goes to state 1 in order to inform the engine computer 15.
- the predetermined duration T2 is calculated to allow a cooling of the control module 14, so that the temperature of this module becomes less than a maximum threshold operating temperature.
- This predetermined duration T2 is in particular between 100 ms and 500 ms.
- the predetermined duration T2 can be adjusted according to the temperature of the control module 14. This duration T2 is the minimum time to respect before resuming the supply of torque when the rebound phase of the engine 1 1 will be detected.
- the alternator-starter 10 is activated again at the moment t5 to generate the starting torque of the heat engine 1 1 when the rotation speed of the heat engine 1 1 (corresponding to V_alt) becomes greater than a predetermined threshold while the heat engine 1 1 is in a rebound phase, that is to say when the speed variation of the heat engine 1 1 goes from negative to positive.
- the rotor 19 preferably remains fluxed in order to allow a new supply of torque at time t5 as soon as the rebound phase of the heat engine 11 is detected.
- the method comprises a step of abandoning the process.
- the control module 14 then sends a signal A_c for abandoning torque for a duration T3 to the engine control unit 15 in order to inform it of the situation and the machine switches to neutral mode (see signals MM_R and MM_Alt).
Landscapes
- 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)
- Control Of Eletrric Generators (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1750489A FR3062177B1 (fr) | 2017-01-20 | 2017-01-20 | Procede de redemarrage d'un moteur thermique au moyen d'un alterno-demarreur |
PCT/FR2018/050143 WO2018134542A2 (fr) | 2017-01-20 | 2018-01-19 | Procede de redemarrage d'un moteur thermique au moyen d'un alterno-demarreur |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3571388A2 true EP3571388A2 (fr) | 2019-11-27 |
Family
ID=58162950
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18704279.1A Withdrawn EP3571388A2 (fr) | 2017-01-20 | 2018-01-19 | Procede de redemarrage d'un moteur thermique au moyen d'un alterno-demarreur |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3571388A2 (fr) |
JP (1) | JP2020505551A (fr) |
CN (1) | CN110199111A (fr) |
FR (1) | FR3062177B1 (fr) |
WO (1) | WO2018134542A2 (fr) |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3953660B2 (ja) * | 1998-09-09 | 2007-08-08 | 株式会社デンソー | 二輪自動車の後進制御装置 |
JP4228882B2 (ja) * | 2003-11-11 | 2009-02-25 | トヨタ自動車株式会社 | 内燃機関の始動装置およびこれを備える自動車 |
JP5499694B2 (ja) * | 2009-12-25 | 2014-05-21 | 日産自動車株式会社 | エンジン始動制御装置 |
FR2962770B1 (fr) * | 2010-07-13 | 2012-08-03 | Peugeot Citroen Automobiles Sa | Procede de gestion de redemarrage automatique d'un moteur thermique |
JP5442042B2 (ja) * | 2012-01-18 | 2014-03-12 | 三菱電機株式会社 | エンジン始動装置およびエンジン始動方法 |
JP5693786B2 (ja) * | 2012-04-03 | 2015-04-01 | 三菱電機株式会社 | 内燃機関の自動停止再始動装置 |
JP6037436B2 (ja) * | 2012-10-04 | 2016-12-07 | 日立オートモティブシステムズ株式会社 | エンジン始動装置および始動方法 |
FR3012178B1 (fr) * | 2013-10-21 | 2018-03-16 | Psa Automobiles Sa. | Dispositif d'arret et de redemarrage automatique d'un moteur thermique de vehicule automobile |
US10240572B2 (en) * | 2014-11-05 | 2019-03-26 | Mitsubishi Electric Corporation | Engine starting apparatus |
JP6104225B2 (ja) * | 2014-11-14 | 2017-03-29 | 三菱電機株式会社 | 回転電機の制御装置、及びその制御装置で制御される回転電機を搭載したエンジン制御システム |
JP6225932B2 (ja) * | 2015-02-25 | 2017-11-08 | トヨタ自動車株式会社 | 内燃機関の制御装置 |
-
2017
- 2017-01-20 FR FR1750489A patent/FR3062177B1/fr not_active Expired - Fee Related
-
2018
- 2018-01-19 JP JP2019539220A patent/JP2020505551A/ja active Pending
- 2018-01-19 CN CN201880006468.8A patent/CN110199111A/zh active Pending
- 2018-01-19 EP EP18704279.1A patent/EP3571388A2/fr not_active Withdrawn
- 2018-01-19 WO PCT/FR2018/050143 patent/WO2018134542A2/fr unknown
Also Published As
Publication number | Publication date |
---|---|
WO2018134542A2 (fr) | 2018-07-26 |
WO2018134542A3 (fr) | 2019-05-16 |
CN110199111A (zh) | 2019-09-03 |
JP2020505551A (ja) | 2020-02-20 |
FR3062177B1 (fr) | 2019-06-07 |
FR3062177A1 (fr) | 2018-07-27 |
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