WO2018150105A1 - Procédé et dispositif d'aide au démarrage d'un moteur à combustion interne - Google Patents
Procédé et dispositif d'aide au démarrage d'un moteur à combustion interne Download PDFInfo
- Publication number
- WO2018150105A1 WO2018150105A1 PCT/FR2017/050355 FR2017050355W WO2018150105A1 WO 2018150105 A1 WO2018150105 A1 WO 2018150105A1 FR 2017050355 W FR2017050355 W FR 2017050355W WO 2018150105 A1 WO2018150105 A1 WO 2018150105A1
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- WO
- WIPO (PCT)
- Prior art keywords
- engine
- temperature
- intake manifold
- threshold value
- outside air
- Prior art date
Links
Classifications
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- 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
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
- F02D41/064—Introducing corrections for particular operating conditions for engine starting or warming up for starting at cold start
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- 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
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
- F02M35/10229—Fluid connections to the air intake system; their arrangement of pipes, valves or the like the intake system acting as a vacuum or overpressure source for auxiliary devices, e.g. brake systems; Vacuum chambers
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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
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/021—Engine temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
- F02D2200/0414—Air temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/41—Control to generate negative pressure in the intake manifold, e.g. for fuel vapor purging or brake booster
-
- 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
- F02N2200/023—Engine temperature
-
- 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
- F02N2200/08—Parameters used for control of starting apparatus said parameters being related to the vehicle or its components
- F02N2200/0807—Brake booster state
-
- 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
- F02N2200/12—Parameters used for control of starting apparatus said parameters being related to the vehicle exterior
- F02N2200/122—Atmospheric temperature
Definitions
- the present invention relates to a method and a starting aid device for an internal combustion engine, which make it possible to improve the starting robustness of the engine.
- Such a method and device have applications in the automotive field and more particularly in the field of engines fueled with a fuel containing ethanol. These engines are more often called flex-fuel engines or "Flex-Fuel" in English.
- Low temperature means an air temperature (outside) of less than 5 ° C (degrees Celsius). In fact, when the engine is cold and the air temperature is below 5 ° C, the combustion of ethanol is difficult. These difficulties result in a longer start, if not impossible, of the engine when the temperatures are particularly low.
- a well known solution is to heat the fuel mixture before it is injected into a combustion chamber.
- heating means are arranged at a fuel inlet and heat the fuel before it is injected into the combustion chamber.
- This technique thus makes it possible to improve the cold start of the engine.
- the engine start-up time (including the preheating time) with such a device is still relatively long, of the order of a few seconds and, moreover, such a solution has a relatively high cost.
- the document FR 2937381 proposes a method of starting a combustion engine powered by a first fuel that may contain ethanol.
- the engine is also equipped with a cold start auxiliary system including an auxiliary tank with a second low ethanol fuel and a temperature sensor that measures a temperature of an engine coolant.
- the second fuel is introduced into an engine intake in response to the observation of a prior event of a request for fuel. starting the engine such as unlocking and opening a driver's door.
- the ethanol-poor fuel is present in the combustion chambers which improves the cold start of the engine.
- the present invention therefore aims to improve the repeatability of cold starts engines powered by a fuel containing ethanol with a simple integration into the engine environment.
- a method and device will be easy to implement and will have a controlled production cost.
- a fuel-fueled internal combustion engine which may contain ethanol, and comprising a fluidic connection pipe between a intake manifold and a brake assist device, the method comprising the steps of:
- the evolution of the pressure in the intake manifold can remain identical regardless of the state of the braking device which is a starting aid and improves the repeatability of the engine cold start.
- the isolation of the braking aid device during the starting phase avoids a change in the pressure in the combustion chambers and consecutively a change in the value of the air / fuel mixture during the start-up phase.
- the brake assist device is of known type, for example a servo-brake device such as a Mastervac.
- the tubing between the intake manifold and the brake assist device is released at rest.
- the first threshold value of the engine temperature is adjustable in a range of values between 10 and 30 ° C. This threshold value is adjustable according to the type of engine and also the type of fuel used even beyond this range of values. To detect whether the engine is hot, however, the first threshold value of the engine temperature can be selected from within the full range of engine temperature values.
- the second threshold value of the outside air temperature is adjustable in a range of values between 0 ° C. and 10 ° C.
- the second threshold value is adjustable depending on the type of engine and the type of fuel used. In order to optimize the cold start of the engine the second threshold value of the air temperature can be chosen in the full range of ambient air temperature values.
- a starting aid device for an internal combustion engine fueled by a fuel that may contain ethanol and having a fluid connection pipe between an intake manifold and a brake assist device, characterized in that it comprises:
- the device according to the invention comprises:
- An electrically controlled valve disposed on the pipe connecting the intake manifold to the braking aid device, able to close off or disengage the pipe according to whether the valve is respectively closed or open, and
- An electronic control device having a first input adapted to receive the information of the engine temperature, a second input adapted to receive the information of the outside air temperature and an output adapted to drive the electrically controlled valve according to the engine and outdoor air temperature information, and threshold values for engine and outdoor air temperatures, and
- Means for determining an autonomous rotation of the motor The electrically controlled valve makes it possible to shut off or disengage the fluidic connection tubing between the intake manifold and the braking aid device so as to prevent or allow respectively fluid communication between these elements.
- the means for determining the engine temperature may be in known manner an engine temperature sensor, an engine coolant temperature sensor.
- the means for determining the outside air temperature may, in known manner, be an outdoor air temperature sensor.
- the means for determining an autonomous rotation of the motor are for example given by an engine control unit which has this information in a known manner.
- the electronic control device is for example associated with or constituting the engine control unit of the vehicle or ECU for "Engine Control Unit" in English.
- the electrically controlled valve is in the open position by default.
- the electrically controlled valve has a switching time of the order of 10 ms.
- the electronic control device has at least one programmable electronic circuit, which improves the integration and the modularity of the device.
- an assembly consisting of a starting aid device according to the invention and an engine comprising an intake manifold, a braking aid device, a tubing fluidic connection between the intake manifold and the brake assist device.
- FIG. 1 is a simplified symbolic representation of an exemplary embodiment of a device for starting a combustion engine according to the invention.
- FIG. 2 is a flow chart showing various steps of exemplary embodiments of a method according to the invention of assisting the starting of an internal combustion engine.
- the device illustrated in FIG. 1 can be installed in a vehicle equipped with a four-stroke or so-called "Flex-Fuel" heat engine, that is to say powered by a fuel containing a gasoline mixture. (or premium gasoline) and ethanol.
- the fuel mixture injected into the engine can thus contain between 0% and 100% of ethanol.
- the fuel is sprayed directly into the combustion chambers of the engine, which on the one hand allows precise control of a quantity of fuel injected and, on the other hand, makes it possible to control the consumption of the vehicle.
- an optimum air / fuel mixture For example, for a gasoline engine the optimum air / fuel mixture is 14.7g of air per 1g of gasoline. This air / fuel mixture is also called stoichiometric mixture, that is to say that the combustion is theoretically complete in the combustion chamber or chambers.
- the values of the air / fuel mixture are given for a so-called "normal" operation of the engine with a fuel supply whose intrinsic characteristics are known and fixed.
- the intrinsic characteristics of the fuel change, such as with an ethanol content of between 0% and 100%, then the optimum value of the air / fuel mixture changes to achieve optimum combustion.
- the driver is asked during a startup phase (when the vehicle is equipped for example with an electronic card) to perform a number of operations for the vehicle to start. For example, he is asked to press both the brake pedal and the clutch pedal before pressing a start button that will initiate a start procedure. In the case of a vehicle equipped with an automatic gearbox, it is only necessary to press the brake pedal.
- the brake booster is a device well known to those skilled in the art that can assist the driver during braking phases.
- the brake booster thus allows for a relatively low force on the brake pedal to obtain a high hydraulic pressure in the brake system of the vehicle.
- a brake booster usually operates either by vacuum or air pressure. Air brake servos are the most used. In general, for a brake servo operating by air depression, the latter is taken in an intake manifold. Thus, during the starting phase, when the driver presses on the brake pedal, the brake booster draws the vacuum necessary for the brake assist in the intake manifold, which itself draws the vacuum in the various chambers engine combustion.
- the pressure in the combustion chambers is changed which causes a change in the value of the air / fuel mixture and can cause, when the engine is cold, difficulties to start. In fact, under these conditions, on the one hand, the value of the mixture is no longer optimal and, on the other hand, the evaporation of the pulverized fuel is less important.
- FIG. 1 diagrammatically shows a starting aid device 2 for a combustion engine, said starting aid device 2 comprising an electrically controlled valve 12, a first temperature sensor 18, a second temperature sensor 20, and an electronic control device 22, and an engine control unit (not shown) comprising means for determining in particular whether the motor is in autonomous rotation.
- FIG. 1 very schematically illustrates an inlet manifold 4 of the internal combustion engine with an air inlet 40, a first outlet 41 and a second outlet 42.
- the air inlet 40 receives outside air after passing through. in an air filter not shown.
- the first outlet 41 is coupled to at least one combustion chamber by a first pipe 6 which is often named by those skilled in the inlet manifold art.
- the second outlet 42 of the intake manifold 4 is coupled by a second manifold 8 to a brake assist device 10, such as a brake booster.
- the first tubing 6 and the second tubing 8 are generally made of an ethanol-resistant material such as, for example, a synthetic material. The dimensional characteristics of the two pipes 6 and 8 depend inter alia on the type of engine.
- the valve 12 electrically controlled is disposed on the second pipe 8 preferably closer to the second outlet 42 of the intake manifold 4.
- the valve 12 electrically controlled is preferably reduced in size.
- the electrically controlled valve 12 may, for example, work at pressures of the order of one to two times the atmospheric pressure and may also work in depression.
- the electrically controlled valve 12 is also often named by those skilled in the solenoid valve art.
- the first temperature sensor 18 is adapted to accurately measure the engine temperature and deliver temperature information via a first connector 24 to an electronic device 22.
- the first temperature sensor 18 is positioned in a cooling system manifold. of the engine where a liquid circulates.
- the first temperature sensor 18 used is a standard sensor model of the automotive industry such as a passive temperature sensor.
- the second temperature sensor 20 is adapted to measure an air temperature and to deliver information of the temperature of the air through a second connector 26 to the electronic device 22.
- the second temperature sensor 20 is a sensor generic of the car well known to those skilled in the art.
- the second temperature sensor 20 is positioned at a vehicle engine calender.
- the electronic control device 22 comprises at least one programmable electronic circuit such as an FPGA (English “Field Programmable Gate Array” or French Programmable Logic Gate System) coupled with control circuits and control to a program and a specific strategy to control the valve 12.
- FPGA Field Programmable Gate Array
- French Programmable Logic Gate System programmable electronic circuit
- the electronic control device 22 has a first input 30 adapted to receive the temperature information from the first temperature sensor 18 through its first connector 24, a second input 32 adapted to receive the temperature information from the second temperature sensor 20. through its second connector 26.
- the electronic control device 22 also has an output 34 adapted to drive through the third connector 28 the valve 12 electrically controlled.
- the electronic control device 22 and / or the first temperature sensor 18 and / or the second temperature sensor 20 are those of the vehicle where the device 2 is installed, the electronic device 22 being for example constitutive the engine control unit of the vehicle.
- the device 2 has a very limited cost.
- the first connector 24, the second connector 26 and the third connector 28 are for example sheathed electrical cables able to withstand relatively large temperature variations and electromagnetic disturbances generated by the motor.
- the device 2 as described above is suitable for putting the starting aid method according to the invention which will now be described.
- a start-up phase begins, for example, when an unlocking of the doors of the vehicle followed by an opening of the driver's door are made.
- the starting phase represented by the block 1 in FIG. 2 can also be started when a starting electronic card is inserted into a card reader of the vehicle and the driver for example pressing simultaneously on the brake pedal and on the pedal. clutch (engine off). It is important to note that for safety reasons the electrically controlled valve 12 is in the open position by default.
- a second phase represented by the block 3 is executed.
- the first temperature sensor 18 measures the temperature of the system liquid. engine temperature and transfer the temperature information to the electronic control device 22 through the first connector 24.
- the second temperature sensor 20 measures the temperature of the outside air and transfers the information through the second connector 26 to the electronic control device 22.
- the temperature information from the two temperature sensors 18 and 20 are, for example, averaged with a sampling number of between 2 and N for a predetermined period adjustable by the electronic control device 22.
- a first threshold value which can be selected from the full range of temperature values of an engine is determined.
- this threshold value will preferably be chosen in a reduced range ranging for example from 10 to 30 ° C. In the example quisuit, this first threshold value will be chosen at 20 ° C.
- a second threshold value is determined for the second temperature sensor 20 which can be selected from the full range of ambient air temperature values.
- this threshold value will preferably be chosen in a reduced range ranging for example from 0 to 10 ° C. In the following example, this second threshold value will be chosen at 5 ° C.
- the first and second threshold values are stored in memory in the engine control unit of the vehicle (not shown) in order to be available for the electronic device 22 for controlling the valve 12.
- the electronic device 22 compares the engine temperature measured by means of the first temperature sensor 18 with the first threshold value, and compares the temperature of the outside air measured by means of the second temperature sensor 20 at the second threshold value.
- the condition is: outside air temperature lower than the second threshold value and engine temperature lower than the first threshold value.
- Case # 1 engine temperature for example inferior to 20 ° C.
- the electronic control device 22 detects whether the motor is rotating independently, that is to say if the engine has started well.
- This autonomous rotation information comes for example from a motor control unit of the vehicle in a known manner.
- a sixth step is executed.
- the solenoid valve is actuated by the electronic control device 22, that is to say that is closed.
- the reaction time of the electrically controlled valve 12 is 10 ms, which allows rapid closing thereof.
- the vacuum in the intake manifold 4 is almost not discharged to the brake assist device 10 when pressing the brake pedal.
- the intake manifold 4 and with it the combustion chambers are isolated from the braking aid device 10.
- the depression of the combustion chambers can thus be achieved more rapidly.
- it is repeatable because the state of the brake booster has no influence on the pressure in the combustion chambers.
- the starting of the engine is facilitated even when the fuel mixture has 100% ethanol. Indeed, when the combustion chambers are in depression, the amount of ethanol evaporated is higher, which ensures a good air / fuel mixture.
- the vaporization of ethanol is improved, which facilitates its ignition and thus facilitates the starting of the engine.
- the third step of the method according to the block 5 shown in FIG. 2 is executed.
- the electrically controlled valve 12 which was closed is now open again (default position).
- the brake booster can again draw the pressure in the intake manifold 4 to be able to activate the brake assist again and the starting procedure can end according to the block 7 shown in FIG. the end of the procedure, the solenoid valve remaining open thanks to its rest position in the example.
- a third step represented by block 5 in FIG. 2 is executed.
- the electrically controlled valve 12 which is open by default in the example is not actuated by the electronic control device 22, that is to say that it is not closed and the start procedure can continue until the engine starts.
- the end of the starting procedure (autonomous rotation of the motor) is represented by the block 7 already described above.
- the electronic control device 22 considers that the engine is sufficiently hot because the air temperature is greater than the second threshold value (for memory, ° C in the present illustrative and non-limiting example). In this case, it is performed the third step represented by the block 5 according to which the isolation solenoid valve of the braking aid device is not controlled.
- the electrically controlled valve 12 which is open by default is not actuated by the electronic control device 22.
- the start procedure can continue until the engine starts.
- the end of the starting procedure (autonomous rotation of the motor) is represented by the block 7 already described above.
- the threshold values of engine temperature and air have been given to illustrate the operation of the device and of course these are adjustable depending on the type of engine and the amount of ethanol contained in the fuel.
- the starting of engines powered by a fuel mixture comprising ethanol is repeatable.
- the present invention thus provides means for improving the repeatability of starting an engine powered by a fuel mixture containing ethanol at cold temperatures that is to say below 5 ° G
- the present invention can also be applied and / or installed on vehicles not equipped with an electronic device for automation or management of starts.
- the present invention can be used on vehicles using standard keys.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/FR2017/050355 WO2018150105A1 (fr) | 2017-02-17 | 2017-02-17 | Procédé et dispositif d'aide au démarrage d'un moteur à combustion interne |
BR112019017168-1A BR112019017168B1 (pt) | 2017-02-17 | 2017-02-17 | Dispositivo e método de auxílio de partida para um motor de combustão interna |
US16/485,207 US10746116B2 (en) | 2017-02-17 | 2017-02-17 | Starting assistance method and device for an internal combustion engine |
CN201780086764.9A CN110268150B (zh) | 2017-02-17 | 2017-02-17 | 用于内燃发动机的起动辅助方法和装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/FR2017/050355 WO2018150105A1 (fr) | 2017-02-17 | 2017-02-17 | Procédé et dispositif d'aide au démarrage d'un moteur à combustion interne |
Publications (1)
Publication Number | Publication Date |
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WO2018150105A1 true WO2018150105A1 (fr) | 2018-08-23 |
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ID=58266676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/FR2017/050355 WO2018150105A1 (fr) | 2017-02-17 | 2017-02-17 | Procédé et dispositif d'aide au démarrage d'un moteur à combustion interne |
Country Status (4)
Country | Link |
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US (1) | US10746116B2 (fr) |
CN (1) | CN110268150B (fr) |
BR (1) | BR112019017168B1 (fr) |
WO (1) | WO2018150105A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111425325B (zh) * | 2020-03-31 | 2021-11-19 | 潍柴动力股份有限公司 | 发动机升温的控制方法及装置、发动机控制设备 |
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2017
- 2017-02-17 WO PCT/FR2017/050355 patent/WO2018150105A1/fr active Application Filing
- 2017-02-17 BR BR112019017168-1A patent/BR112019017168B1/pt active IP Right Grant
- 2017-02-17 US US16/485,207 patent/US10746116B2/en active Active
- 2017-02-17 CN CN201780086764.9A patent/CN110268150B/zh active Active
Patent Citations (6)
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JPH07119511A (ja) * | 1993-10-15 | 1995-05-09 | Toyota Motor Corp | 車両の空燃比制御装置 |
US20040159095A1 (en) * | 2003-01-09 | 2004-08-19 | Klemens Grieser | Method and system for controlling an internal combustion engine having a brake booster |
US20040237923A1 (en) * | 2003-05-22 | 2004-12-02 | Denso Corporation | Control system for internal combustion engine |
US20120138005A1 (en) * | 2011-11-02 | 2012-06-07 | Ford Global Technologies, Llc | Engine throttle control with brake booster |
US20130276756A1 (en) * | 2012-04-18 | 2013-10-24 | Ford Global Technologies, Llc | Reducing intake manifold pressure during cranking |
FR3042225A1 (fr) * | 2015-10-09 | 2017-04-14 | Continental Automotive France | Procede et dispositif d'aide au demarrage d'un moteur a combustion interne |
Also Published As
Publication number | Publication date |
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BR112019017168B1 (pt) | 2023-10-31 |
CN110268150A (zh) | 2019-09-20 |
US10746116B2 (en) | 2020-08-18 |
US20200011259A1 (en) | 2020-01-09 |
CN110268150B (zh) | 2022-06-21 |
BR112019017168A2 (pt) | 2020-04-14 |
BR112019017168A8 (pt) | 2023-04-11 |
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