WO2022199279A1 - Procédé et appareil pour démarrer rapidement une voiture, dispositif, et support de stockage - Google Patents

Procédé et appareil pour démarrer rapidement une voiture, dispositif, et support de stockage Download PDF

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Publication number
WO2022199279A1
WO2022199279A1 PCT/CN2022/076434 CN2022076434W WO2022199279A1 WO 2022199279 A1 WO2022199279 A1 WO 2022199279A1 CN 2022076434 W CN2022076434 W CN 2022076434W WO 2022199279 A1 WO2022199279 A1 WO 2022199279A1
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WO
WIPO (PCT)
Prior art keywords
engine
phase
crankshaft
signal
crankshaft signal
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PCT/CN2022/076434
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English (en)
Chinese (zh)
Inventor
高天宇
曾玲鑫
孙鹏远
时宪
宋同好
邹铁
苍贺成
Original Assignee
中国第一汽车股份有限公司
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Publication of WO2022199279A1 publication Critical patent/WO2022199279A1/fr

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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
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals

Definitions

  • the embodiments of the present application relate to automobile control technologies, for example, to a method, device, device, and storage medium for a quick start of an automobile.
  • the phasing of a car engine refers to the angle at which the engine's crankshaft is currently positioned.
  • the synchronous recognition of the crankshaft and camshaft signals of the engine during the starting process of the automobile engine is a key factor in the engine control that determines the starting performance of the engine.
  • the automobile electronic controller determines the phase of the engine according to the received crankshaft signal and camshaft signal, and only after synchronous identification can the timing control such as fuel injection and ignition be performed sequentially according to the defined cylinder sequence.
  • a common practice is to complete the timing synchronization and perform pre-injection by reading the memory value stored in the last stop phase of the engine when the engine is started.
  • the present application provides a method, device, device and storage medium for quick start of an automobile, so as to realize the quick start of an engine of the automobile.
  • an embodiment of the present application provides a method for quickly starting a vehicle, including:
  • the shutdown phase includes the first shutdown phase stored in the first electronic control unit of the automobile and the second shutdown phase stored in the second electronic control unit;
  • the synchronization of the target crankshaft signal is accomplished with the first shutdown phase or the second shutdown phase as the target phase of the engine.
  • an embodiment of the present application also provides a vehicle quick start device, including:
  • an acquisition module configured to acquire the current shutdown phase of the engine of the automobile, the shutdown phase including the first shutdown phase stored in the first electronic control unit of the automobile and the second shutdown phase stored in the second electronic control unit;
  • a judgment module configured to judge whether the difference between the first shutdown phase and the second shutdown phase is within a preset threshold range
  • the execution module is configured to use the first stop phase or the second stop phase as the target phase of the engine to complete the synchronization of the target crankshaft signal in response to the difference within a preset threshold range.
  • an embodiment of the present application also provides a vehicle quick start device, the device comprising:
  • storage means arranged to store at least one program
  • the at least one processor When the at least one program is executed by the at least one processor, the at least one processor implements the method for quickly starting an automobile according to the first aspect.
  • embodiments of the present application further provide a storage medium containing computer-executable instructions, where the computer-executable instructions, when executed by a computer processor, are used to execute the method for quickly starting an automobile according to the first aspect.
  • FIG. 1 is a flowchart of a method for quickly starting a vehicle according to Embodiment 1 of the present application;
  • FIG. 2 is a flowchart of a method for quickly starting an automobile according to Embodiment 2 of the present application;
  • FIG. 3 is a schematic structural diagram of a vehicle quick start device provided in Embodiment 3 of the present application.
  • FIG. 4 is a schematic structural diagram of a vehicle quick start device provided in Embodiment 4 of the present application.
  • Fig. 1 is the flow chart of the automobile quick start method provided by the first embodiment of the application, the present embodiment can be applied to the situation of the quick start of the engine of the automobile controlled by V-type dual ECU (Electronic Control Unit, electronic control unit), the method It can be carried out by the car's quick start device, including the following steps:
  • Step 110 Acquire the current shutdown phase of the engine of the automobile, where the shutdown phase includes the first shutdown phase stored in the first electronic control unit of the automobile and the second shutdown phase stored in the second electronic control unit.
  • the engine transitions from the static state to the working state, and then transmits the power to the wheels of the car under the action of the gearbox, thereby realizing the starting of the car.
  • the crankshaft of the engine In order to make the engine transition from a static state to a working state, the crankshaft of the engine must be rotated by an external force, so that the combustible mixture is inhaled (or formed) in the cylinder and combusted and expanded, and the working cycle can be carried out automatically.
  • the whole process from the crankshaft starting to rotate under the action of external force to the engine starting to idle automatically is called the starting of the engine.
  • the automotive electronic controller determines the phase of the engine according to the received crankshaft signal and camshaft signal, and performs timing control such as fuel injection and ignition in turn according to the defined cylinder sequence after synchronization identification.
  • two ECUs Electronic Control Unit, electronic control unit
  • the two electronic control units are respectively provided with complete detection sensors, and the detection sensors are set to detect the working state of the engine.
  • the detection sensors corresponding to each electronic control unit include at least one set of crankshaft position sensors and cams.
  • Shaft position sensor (a set of crankshaft position sensor and camshaft position sensor consists of a crankshaft position sensor and a camshaft position sensor), the crankshaft position sensor and the camshaft position sensor monitor the movement of the crankshaft and the camshaft respectively, and are composed of two The two electronic control units work together to ensure reliable timing control of the engine.
  • the crankshaft signal and camshaft signal detected by the two electronic control units are processed at the end of the previous work to obtain the stop phase of the engine when the engine is stopped.
  • the crankshaft information (rotation information, position information) of the crankshaft is obtained through the crankshaft position sensor provided in the engine, and then the position of the crankshaft is judged, and the stop phase of the crankshaft in the stopped state is obtained, that is, the embodiment described in the present application.
  • the current shutdown phase For the two electronic control units, the engine stop phase (current stop phase) determined by the crankshaft signal detected by the corresponding crankshaft position sensor is stored therein respectively.
  • the current shutdown phase stored in the two electronic control units when the engine was stopped last time is read in advance, that is, the first electronic control unit described in the embodiment of the present application.
  • the electronic control unit of the car can be online in various situations, for example: the car starts after inserting the key; or the car reads when the key is inserted and the key is turned to start the car; or the one-button start button on the car is pressed Then trigger to read the first shutdown phase stored in the first electronic control unit and the second shutdown phase stored in the second electronic control unit; or other start conditions trigger the first shutdown phase and The reading of the second stop phase stored in the second electronic control unit is not limited here.
  • Step 120 judging whether the difference between the first shutdown phase and the second shutdown phase is within a preset threshold range
  • step 130 If the difference is within the preset threshold range, perform step 130;
  • step 140 is executed.
  • the stop phase of the engine of the car is stored in the form of an angle value (the stop phase value, the size is in the range of 0°-720°), and because the stop phases of the two electronic control units are respectively based on the corresponding crankshaft position sensors.
  • the crankshaft signal is determined, so the value of the stop phase stored in the two electronic control units will have a certain deviation, and when the deviation of the value of the two stop phases is within a certain range, it will not affect the engine start of the car.
  • a secondary synchronous calibration can be performed according to the crankshaft position sensor and the camshaft position sensor set on the engine. Therefore, during the start-up phase of the car's engine, the two electronic control units are allowed to store the stop phase. There is a range of deviations in the value.
  • the difference between the shutdown phases stored in the two electronic control units is obtained by simply subtracting the values of the shutdown phases stored in the two electronic control units, and then the difference is added to the preset value.
  • Step 130 using the first stop phase or the second stop phase as the target phase of the engine to complete the synchronization of the target crankshaft signal.
  • the difference between the stop phases stored in the two electronic control units is within a preset threshold range, it indicates that the stop phases stored in the two electronic control units at this time can be directly used for starting the engine of the car , so as to quickly complete the synchronization of the crankshaft signal and the camshaft signal of the engine, skip the synchronous identification work required at startup, so that the engine can directly enter the startup state, avoiding the wrong fuel injection and ignition. waste of time and energy.
  • Step 140 complete the synchronization of the target crankshaft signal by identifying the reference crankshaft signal of the engine.
  • the difference between the stop phases stored in the two electronic control units is outside the preset threshold range, it means that the stop phases stored in the two electronic control units do not meet the starting conditions of the engine of the car , at this time, it is necessary to re-identify the crankshaft signal and the camshaft signal of the engine of the car to ensure that the electronic control unit controls the fuel injection and ignition of the engine at the appropriate time.
  • the current shutdown phases stored in the two electronic control units of the engine of the automobile are obtained, and it is judged whether the current shutdown phases stored in the two electronic control units meet the preset conditions, and whether the two The current stop phase stored in the electronic control unit is directly used for the start of the engine of the car, which can realize the rapid start of the engine, reduce the time required for the synchronous identification of the engine of the automobile, and avoid the time spent in the synchronous identification process when the wrong fuel is injected.
  • the resulting waste of resources and the increase in exhaust hydrocarbon emissions ensure the fuel economy and emission control of the engine.
  • FIG. 2 is a flowchart of a method for quickly starting a vehicle according to Embodiment 2 of the present application.
  • This embodiment is a refinement on the basis of Embodiment 1, and describes in detail the method for acquiring the current shutdown phase and other related features.
  • the method includes:
  • Step 201 obtaining the current stop phase based on the stop signal of the engine of the vehicle and the initial crankshaft signal, where the initial crankshaft signal is the crankshaft signal detected before the engine stops moving.
  • the crankshaft signal (initial crankshaft signal) detected by the crankshaft position sensor is obtained in response to the stop signal of the engine of the automobile, and then the stop position of the crankshaft when the engine is stopped is determined according to the crankshaft signal. , and obtain the corresponding shutdown phase as the current shutdown phase.
  • crankshaft position sensor determines the position of the crankshaft, that is, the angle of rotation of the crankshaft and the speed of the engine. It usually works with the camshaft position sensor - to determine the basic ignition timing.
  • the crankshaft position is calculated by the signals of the crankshaft position sensor and the camshaft position sensor. Through the crankshaft position sensor, it can be known which cylinder piston is at the top dead center, and through the camshaft position sensor, which cylinder piston is in the compression stroke.
  • the corresponding camshaft is also provided with a camshaft position sensor.
  • the camshaft position sensor is a sensing device, also called a synchronization signal sensor, which is a cylinder discriminating and positioning device that inputs the camshaft position to the electronic control unit. Signal is the main control signal of ignition control.
  • the camshaft position sensor is set to collect the camshaft moving angle signal and input it to the electronic control unit to determine the ignition time and fuel injection time.
  • the camshaft position sensor is also called the cylinder identification sensor.
  • the function of the camshaft position sensor is to collect the position signal of the valve camshaft and input it to the electronic control unit, so that the electronic control unit can identify the top dead center of cylinder compression, so as to perform sequential fuel injection control, ignition timing control and detonation control.
  • the camshaft position signal is used to identify the moment of the first ignition when the engine is started. Because the camshaft position sensor can identify which cylinder piston is about to reach top dead center, it is called a cylinder identification sensor.
  • the crankshaft signal when the engine of the vehicle is stopped can be obtained through the crankshaft position sensor, so as to determine the stop position of the crankshaft of the engine according to the crankshaft signal, and obtain the corresponding stop phase. That is, the current shutdown phase described in the embodiments of the present application.
  • step 201 may include:
  • Step 2011 Determine the forward rotation phase value at the forward rotation end position and the reverse rotation phase value at the reverse rotation end position of the engine based on the stop signal of the engine of the vehicle and the initial crankshaft signal.
  • the detection principle is to detect the number of teeth passing through the crankshaft position sensor to determine the rotation angle of the crankshaft and the engine speed. The number of rising or falling edges of the fluctuation determines the number of teeth that pass the position of the crankshaft position sensor, which in turn determines the position of the crankshaft.
  • the detection process since the detection result is a waveform diagram, it cannot be directly detected whether the crankshaft is in a forward rotation state or a reverse rotation state. Therefore, it is necessary to determine the position where the reverse rotation occurs in the waveform diagram of the crankshaft signal, and then determine the forward rotation end position and the reverse rotation end position of the engine.
  • step 2011 may include:
  • Step 20111 Determine the position where the low level in the initial crankshaft signal changes from the first width to the second width as the forward rotation end position of the engine, where the first width is not equal to the second width.
  • Step 20112 Obtain the initial crankshaft signal corresponding to the forward rotation end position, and determine the crankshaft phase value of the engine as the forward rotation phase value.
  • Step 20113 After determining the forward rotation phase value, the position where the low level in the initial crankshaft signal changes from the second width to the first width is used as the reverse rotation end position of the engine.
  • Step 20114 Obtain the initial crankshaft signal corresponding to the reverse rotation end position, and determine the crankshaft phase value of the engine as the reverse rotation phase value.
  • Step 2012 using the forward rotation phase value to subtract the reverse rotation phase value to obtain the current stop phase of the engine.
  • a crankshaft position sensor composed of three Hall sensors is used to acquire the crankshaft position information, and the low-level span of the crankshaft signal output by the crankshaft position sensor is processed as the first width when the crankshaft rotates forwardly, When the crankshaft is reversed, the low-level span is processed as the second width, and the high-level span is inversely proportional to the speed of crankshaft rotation, that is, the greater the crankshaft rotational speed, the smaller the high-level span, and the higher the crankshaft rotational speed. The smaller the span of the high level is.
  • the crankshaft when the engine of the car stops after receiving the stop signal, the crankshaft continues to rotate forward under the action of inertia, and the low level in the initial crankshaft signal obtained at this time is the first width corresponding to the forward rotation.
  • the speed is 0 and the reverse is reversed, it is at the end of the forward rotation, and it is about to reverse.
  • the span of the low level of the obtained initial crankshaft signal will change from the first width of the forward rotation to the reverse rotation. the second width.
  • the crankshaft when the crankshaft is reversed to the end position of the reverse rotation, its speed will become 0, and then forward rotation will occur, and the span of the low level will change from the second width to the first width.
  • the span of the low level output by the crankshaft position sensor when the crankshaft is rotating forward is 50us
  • the span of the low level when the crankshaft is rotating reversely is 100us.
  • the forward rotation end position and the reverse rotation end position of the crankshaft of the engine are determined based on the crankshaft signal of the engine in the preceding steps, as well as the corresponding forward rotation phase value and reverse rotation phase value.
  • the phase value of the final stop position of the crankshaft is obtained by subtracting the reverse phase value from the phase value.
  • crankshaft of the engine since the crankshaft of the engine is prone to pendulum motion when it is stopped, it reciprocates along a certain position for many times, and finally stops, so that the positions where the rotation direction changes many times and the corresponding positive rotation phase values and values can be counted. Reverse the phase value, accumulate the forward phase value and reverse phase value for multiple times, and then subtract the accumulated reverse phase value from the accumulated forward rotation phase value to obtain the final stop phase of the stop position.
  • Step 202 write the current shutdown phase into the electronic control unit of the vehicle for power-down storage.
  • the two electronic control units of the automobile determine the current stop phase of the position where the corresponding engine was stopped in the previous use based on the data collected by the crankshaft position sensor and the camshaft position sensor, respectively. After the corresponding current shutdown phase is obtained, it can be stored in the storage space of the two electronic control units of the car by means of power-off saving, so that it can be read for a new time when the car is powered on next time. car's engine starts.
  • Step 203 Obtain the current shutdown phase of the engine of the automobile, where the shutdown phase includes the first shutdown phase stored in the first electronic control unit of the automobile and the second shutdown phase stored in the second electronic control unit.
  • the electronic control unit when the engine of the car is started again, the electronic control unit is powered on to read the current shutdown phase stored in the two electronic control units when the engine was stopped last time, that is, the first electronic control unit described in the embodiments of the present application.
  • Step 204 judging whether the difference between the first shutdown phase and the second shutdown phase is within a preset threshold range
  • step 205 If the difference is within the preset threshold range, go to step 205;
  • step 206 is executed.
  • Step 205 using the first stop phase or the second stop phase as the target phase of the engine to complete the synchronization of the target crankshaft signal.
  • Step 206 complete the synchronization of the target crankshaft signal by identifying the reference crankshaft signal of the engine.
  • the difference between the shutdown phases stored in the two electronic control units is obtained by simply subtracting the values of the shutdown phases stored in the two electronic control units, and then the difference is reduced to the preset value.
  • the difference between the stop phases stored in the two electronic control units is within the preset threshold range, it indicates that the stop phases stored in the two electronic control units can be directly used to start the engine of the car, so as to quickly complete the
  • the synchronous work of the crankshaft signal and the camshaft signal of the engine skips the synchronous identification work required at the time of starting, so that the engine can directly enter the starting state, avoiding the time and energy consumption caused by wrong fuel injection and ignition. waste.
  • step 206 may include:
  • Step 2061 Obtain a reference crankshaft signal of the engine, where the reference crankshaft signal is a crankshaft signal obtained when the engine is started.
  • crankshaft signal can be obtained through a crankshaft position sensor provided on the engine, and the signal of the crankshaft position sensor is obtained as the required reference crankshaft signal when the engine is started.
  • Step 2062 Determine the missing tooth feature in the reference crankshaft signal.
  • the crankshaft position sensor In the crankshaft position judgment process, the crankshaft position sensor generates a signal by detecting the change of the backlash on the crankshaft signal wheel, and sets “missing teeth” on the crankshaft to indicate the position of the crankshaft corresponding cylinder piston when it reaches the top dead center.
  • Step 2063 completing the synchronization of the target crankshaft signal based on the missing tooth feature.
  • the crankshaft and camshaft start to rotate, and the electronic control unit (ECU, Electronic Control Unit) starts to detect the crankshaft signal generated by the crankshaft position sensor by detecting the change of the backlash on the crankshaft signal wheel. Since there is no reference tooth, the electronic control unit It cannot be counted, that is, it cannot be determined what tooth number is detected, nor can the current crankshaft angle be known. Therefore, it is necessary to set the "missing tooth" on the crankshaft to indicate the position of the crankshaft when the cylinder and piston reach the top dead center, so as to calibrate the reference position of the crankshaft. In the embodiment of the present application, when the difference between the first stop phase and the second stop phase exceeds a preset threshold range, the crankshaft position is determined by acquiring the missing tooth feature in the reference crankshaft signal, thereby realizing synchronization.
  • ECU Electronic Control Unit
  • step 2063 may include:
  • Step 20631 obtain the camshaft signal of the engine
  • Step 20632 Complete the synchronization of the target crankshaft signal based on the camshaft signal and the missing tooth feature.
  • the signal is generated by detecting the change of the backlash on the crankshaft signal wheel, and the "missing tooth" is used to indicate the position of the crankshaft when the corresponding cylinder piston reaches the top dead center. Since the crankshaft rotates twice in one working cycle of the engine, the crankshaft position sensor alone cannot determine which stroke the crankshaft is currently in. In the same working cycle, the camshaft only rotates once, so that the stroke of the crankshaft is Can be determined by the camshaft position. The prerequisite for this coordination is that the crankshaft position sensor signal and the camshaft position sensor signal must be synchronized. Exemplarily, when the missing tooth signal is detected, the electronic control unit starts counting.
  • the missing tooth signal is detected again after counting 58 teeth, the missing tooth signal is confirmed and the crankshaft self-synchronizes successfully.
  • the angle between 0° and 360° of the crankshaft can be obtained, because the engine sprays four cylinders in one fuel injection cycle, the camshaft rotates once, and the crankshaft rotates twice.
  • the stroke of the crankshaft of the engine can also be determined in combination with the first stop phase and the second stop phase.
  • the stroke of the crankshaft is determined by judging whether the first stop phase and the second stop phase are in the same stroke, and the stroke they are in.
  • FIG. 3 is a structural diagram of a vehicle quick start device according to Embodiment 3 of the present application.
  • the device includes: a phase determination module 31 , a storage module 32 , an acquisition module 33 , a judgment module 34 and an execution module 35 . in:
  • the phase determination module 31 is configured to obtain the current stop phase based on the stop signal of the engine of the automobile and the initial crankshaft signal, and the initial crankshaft signal is the crankshaft signal detected before the engine stops moving;
  • the saving module 32 is configured to write the current stop phase into the electronic control unit of the vehicle for power-off saving.
  • the acquisition module 33 is configured to acquire the current shutdown phase of the engine of the automobile, and the shutdown phase includes the first shutdown phase stored in the first electronic control unit of the automobile and the second shutdown phase stored in the second electronic control unit;
  • the judgment module 34 is configured to judge whether the difference between the first shutdown phase and the second shutdown phase is within a preset threshold range
  • the execution module 35 is configured to use the first stop phase or the second stop phase as the target phase of the engine to complete the synchronization of the target crankshaft signal when the difference is within a preset threshold range; if the difference is outside the preset threshold range , the synchronization of the target crankshaft signal is completed by identifying the reference crankshaft signal of the engine.
  • the execution module 31 includes:
  • the reference crankshaft signal obtaining sub-module is set to obtain the reference crankshaft signal of the engine, and the reference crankshaft signal is the crankshaft signal obtained when the engine is started;
  • a feature determination sub-module configured to determine the missing tooth feature in the reference crankshaft signal
  • the synchronization sub-module is set to complete the synchronization of the target crankshaft signal based on the missing tooth feature.
  • the synchronization submodule includes:
  • a camshaft signal unit configured to obtain the camshaft signal of the engine
  • the synchronization unit is configured to complete the synchronization of the target crankshaft signal based on the camshaft signal and the missing tooth feature.
  • the phase determination module 31 includes:
  • the phase determination sub-module is set to determine the forward rotation phase value of the forward rotation end position of the engine and the reverse rotation phase value of the reverse rotation end position based on the stop signal of the engine of the car and the initial crankshaft signal; subtract the reverse phase value from the forward rotation phase value.
  • the rotation phase value obtains the current shutdown phase of the engine.
  • the phase determination sub-module includes:
  • the forward rotation end position determination unit is set to determine the widest point of the initial crankshaft signal whose cycle is narrow-wide-narrow as the forward rotation end position of the engine based on the sending time of the stop signal of the engine of the automobile;
  • the forward rotation phase value determination unit is set to obtain the initial crankshaft signal corresponding to the forward rotation end position, and determine the crankshaft phase value of the engine as the forward rotation phase value;
  • the reverse rotation end position determination unit is set to determine the reverse rotation end position of the engine at the widest point in the initial crankshaft signal whose cycle is narrow-wide-narrow after the forward rotation phase value is determined;
  • the reverse rotation phase value determination unit is configured to acquire the initial crankshaft signal corresponding to the reverse rotation end position, and determine the crankshaft phase value of the engine as the reverse rotation phase value.
  • the vehicle quick start device provided by the embodiment of the present application can execute the vehicle quick start method provided by any embodiment of the present application, and has function modules corresponding to the execution method.
  • FIG. 4 is a schematic structural diagram of an electronic device according to Embodiment 4 of the present application.
  • the electronic device includes a processor 40 , a memory 41 , a communication module 42 , an input device 43 and an output device 44 ; the number of processors 40 in the electronic device may be at least one, and one processor 40 is used in FIG. 4 .
  • the processor 40 , the memory 41 , the communication module 42 , the input device 43 and the output device 44 in the electronic device may be connected by a bus or in other ways. In FIG. 4 , the connection by a bus is taken as an example.
  • the memory 41 can be configured to store software programs, computer-executable programs, and modules, such as modules corresponding to a vehicle quick-start method in this embodiment (for example, in a vehicle quick-start device).
  • the processor 40 executes various functional applications and data processing of the electronic device by running the software programs, instructions and modules stored in the memory 41 , that is, to implement the above-mentioned method for quickly starting a vehicle.
  • the memory 41 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the electronic device, and the like.
  • the memory 41 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.
  • memory 41 may include memory located remotely from processor 40, which may be connected to the electronic device through a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
  • the communication module 42 is configured to establish a connection with the display screen and realize data interaction with the display screen.
  • the input device 43 may be configured to receive input numerical or character information, and to generate key signal input related to user settings and function control of the electronic device.
  • An electronic device provided in this embodiment can execute the vehicle quick start method provided in any embodiment of this application, and has corresponding functions.
  • Embodiment 5 of the present application further provides a storage medium containing computer-executable instructions, where the computer-executable instructions are used to execute a method for quickly starting an automobile when executed by a computer processor, and the method includes:
  • the shutdown phase includes the first shutdown phase stored in the first electronic control unit of the automobile and the second shutdown phase stored in the second electronic control unit;
  • the synchronization of the target crankshaft signal is completed by taking the first stop phase or the second stop phase as the target phase of the engine.
  • a storage medium containing computer-executable instructions provided by the embodiments of the present application the computer-executable instructions of the storage medium are not limited to the above-mentioned method operations, and can also execute a car express provided by any embodiment of the present application. Initiate the relevant action in the method.
  • the present application can be implemented by means of software and necessary general-purpose hardware, and certainly can also be implemented by hardware.
  • the technical solutions of the present application can be embodied in the form of software products in essence or the parts that make contributions to related technologies, and the computer software products can be stored in a computer-readable storage medium, such as a computer floppy disk, Read-Only Memory (ROM), Random Access Memory (RAM), Flash Memory (FLASH), hard disk or optical disk, etc., including several instructions for making a computer electronic device (which may be a personal computer) , a server, or a network electronic device, etc.) to execute the methods described in the various embodiments of this application.
  • a computer electronic device which may be a personal computer
  • server or a network electronic device, etc.
  • the units and modules included are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be realized; in addition, The names of the functional units are only for the convenience of distinguishing from each other, and are not used to limit the protection scope of the present application.

Abstract

L'invention concerne un procédé pour démarrer rapidement une voiture, comprenant : acquisition d'une phase d'arrêt actuelle d'un moteur de la voiture, la phase d'arrêt comprenant une première phase d'arrêt stockée dans une première unité de commande électronique de la voiture et une deuxième phase d'arrêt stockée dans une deuxième unité de commande électronique ; détermination si la différence entre la première phase d'arrêt et la deuxième phase d'arrêt se situe dans une plage de seuil prédéfinie ; et, en réponse au fait que la différence se situe dans la plage de seuil prédéfinie, utilisation de la première phase d'arrêt ou de la deuxième phase d'arrêt en tant que phases cibles du moteur pour synchroniser des signaux de vilebrequin cibles. La présente invention concerne également un appareil pour démarrer rapidement une voiture, un dispositif, et un support de stockage. En utilisation réelle, le temps exigé pour l'identification synchrone du démarrage du moteur peut être réduit, de sorte que le gaspillage de carburant et l'augmentation des émissions d'échappement provoqués par une injection de carburant erronée pendant un processus d'identification synchrone peuvent être empêchés.
PCT/CN2022/076434 2021-03-26 2022-02-16 Procédé et appareil pour démarrer rapidement une voiture, dispositif, et support de stockage WO2022199279A1 (fr)

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