CN114526156A - Dual mass flywheel device, vehicle, and control method for vehicle - Google Patents

Dual mass flywheel device, vehicle, and control method for vehicle Download PDF

Info

Publication number
CN114526156A
CN114526156A CN202210055310.8A CN202210055310A CN114526156A CN 114526156 A CN114526156 A CN 114526156A CN 202210055310 A CN202210055310 A CN 202210055310A CN 114526156 A CN114526156 A CN 114526156A
Authority
CN
China
Prior art keywords
flywheel
dual
encoder
mass flywheel
vehicle
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.)
Pending
Application number
CN202210055310.8A
Other languages
Chinese (zh)
Inventor
陈志伟
龙立
万建
张炜
纪东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongfeng Motor Corp
Original Assignee
Dongfeng Motor Corp
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 Dongfeng Motor Corp filed Critical Dongfeng Motor Corp
Priority to CN202210055310.8A priority Critical patent/CN114526156A/en
Publication of CN114526156A publication Critical patent/CN114526156A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/08—Safety, indicating or supervising devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/26—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, of type of freewheel device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
    • B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
    • B60R16/0234—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions related to maintenance or repairing of vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/08—Safety, indicating or supervising devices
    • F02B77/083—Safety, indicating or supervising devices relating to maintenance, e.g. diagnostic device
    • 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
    • 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
    • F02D41/0097—Electrical control of supply of combustible mixture or its constituents using means for generating speed signals
    • 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
    • F02D41/065—Introducing corrections for particular operating conditions for engine starting or warming up for starting at hot start or restart
    • 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
    • F02D41/30—Controlling fuel injection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/30—Flywheels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • 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
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

Abstract

The embodiment of the application discloses a dual mass flywheel device, a vehicle and a control method of the vehicle, wherein the dual mass flywheel device comprises: a first flywheel; a first encoder disposed on an outer periphery of the first flywheel; a second flywheel; a second encoder disposed on an outer periphery of the second flywheel; the detection component, the detection direction of detection component is towards first encoder and first encoder. The dual-mass flywheel device can directly detect and acquire the phase difference and the angular acceleration between the first flywheel and the second flywheel on the premise of not interfering the normal work of the dual-mass flywheel device, has high detection precision, can realize real-time protection on the dual-mass flywheel, prevents misjudgment and excessive protection, improves the protection precision and improves the driving experience; meanwhile, whether the dual-mass flywheel has functional failure or not can be accurately judged, excessive disassembly analysis is prevented, misjudgment is reduced, maintenance efficiency is improved, and maintenance cost is reduced.

Description

Dual mass flywheel device, vehicle, and control method for vehicle
Technical Field
The embodiment of the application relates to the technical field of vehicles, in particular to a dual-mass flywheel device, a vehicle and a control method of the vehicle.
Background
A dual-mass flywheel (DMF for short) is a torsional vibration damper applied between an engine and a transmission case, not only has the functions of energy storage and torque transmission of the traditional single-mass flywheel, but also can adjust the torsional vibration natural frequency of the whole vehicle transmission system by setting different inertia and rigidity, and reduces the vibration amplitude of a shafting by utilizing the damping of the dual-mass flywheel, thereby effectively reducing the vibration output from the engine end to the transmission case end and improving the torsional vibration level of the vehicle transmission system.
Under the working conditions of starting, stopping, rapid acceleration, rapid stopping, misoperation and the like of a vehicle, the rotating speed of an engine inevitably passes through a resonance rotating speed interval (usually 300-600 rpm), and the dual-mass flywheel is damaged due to impact torque when the engine is in the resonance rotating speed interval for too long time, and synchronously accompanies abnormal sound and noise of the vehicle.
When an automobile manufacturer and a supplier design and develop the dual-mass flywheel, the working condition of the resonance rotating speed which possibly occurs is usually identified and simulated, and a protection control strategy is added under a special working condition through EMS software to prevent the dual-mass flywheel from being in the resonance rotating speed for too long time, so that the dual-mass flywheel is protected.
In the prior art, the engine or crankshaft rotation speed information is generally identified by an Electronic Control Unit (ECU), a time or frequency threshold of a resonance rotation speed interval is set, the rotation speed information is measured and judged according to the set threshold, and once the threshold is triggered, parameters such as oil injection, air suction or ignition are reduced, so that the limitation of the engine rotation speed or torque is realized, and the probability of resonance impact of the dual-mass flywheel is reduced. The detection of the prior art on the dual-mass flywheel completely depends on ECU monitoring, the identification precision is low, and misjudgment is easily caused.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, a first aspect of the invention provides a dual mass flywheel arrangement.
A second aspect of the invention provides a vehicle.
A third aspect of the invention provides a control method of a vehicle.
In view of this, according to a first aspect of embodiments of the present application, there is provided a dual mass flywheel apparatus, comprising:
a first flywheel;
a first encoder disposed on an outer periphery of the first flywheel;
a second flywheel;
a second encoder disposed on an outer periphery of the second flywheel;
the detection component is used for detecting whether the first encoder and the second encoder face each other or not.
In a possible embodiment, the first encoder comprises a plurality of first markers, and the plurality of first markers are distributed on the periphery of the first flywheel at equal intervals;
the second encoder comprises a plurality of second marks which are distributed on the periphery of the second flywheel at equal intervals.
In one possible embodiment of the method according to the invention,
one first mark in the plurality of first marks is a first alignment mark, and the width of the first alignment mark is greater than the widths of other first marks;
one of the second marks is a second alignment mark, and the width of the second alignment mark is greater than the widths of the other second marks;
the dual mass flywheel apparatus further comprises:
the first identification mark is arranged on the first flywheel and is opposite to the first alignment mark;
and the second identification mark is arranged on the second flywheel and is opposite to the second alignment mark.
In one possible embodiment, the detection assembly comprises:
the detection direction of the first sensor faces to the first flywheel and is used for acquiring first rotation information based on a first encoder;
and the detection direction of the second sensor faces to the second flywheel and is used for acquiring second rotation information based on the second encoder.
According to a second aspect of embodiments of the present application, there is provided a vehicle including:
the dual mass flywheel device according to the above technical solution;
an engine, the first flywheel being connected to the engine;
a gearbox to which the second flywheel is connected.
In one possible embodiment, the vehicle further comprises:
and the alignment mark is arranged on the engine, and when the dual-mass flywheel is installed on the engine, the first identification mark on the first flywheel is arranged opposite to the alignment mark.
According to a second aspect of the embodiments of the present application, there is provided a control method of a vehicle for controlling the vehicle according to the above-described aspect, the control method including:
acquiring a phase difference and an angular acceleration of the first flywheel and the second flywheel through the first encoder and the second encoder based on the detection assembly;
determining an operating state of the dual mass flywheel device based on the phase difference and the angular acceleration.
In a possible implementation manner, the step of obtaining, based on the detection component, a phase difference and an angular acceleration of the first flywheel and the second flywheel through the first encoder and the second encoder includes:
obtaining a first number of first tags identified on the first flywheel in a first unit of time;
obtaining a second number of second tags identified on the second flywheel within the first unit of time;
determining the phase difference and the angular acceleration based on the first number and the second number.
In a possible embodiment, the step of determining the operating state of the dual mass flywheel arrangement based on the phase difference and the angular acceleration comprises:
determining that the dual-mass flywheel device is in an abnormal working state under the condition that the phase difference is greater than a first threshold and smaller than a second threshold, or the angular acceleration is greater than a third threshold and smaller than a fourth threshold;
adjusting the operating state of the engine when the dual mass flywheel device is in an abnormal operating state; and/or
Determining that the dual mass flywheel device is in a failure state when the phase difference is greater than or equal to a second threshold value or the angular acceleration is greater than or equal to a fourth threshold value;
and generating maintenance prompt information under the condition that the dual-mass flywheel device is in a failure state.
In one possible embodiment, the control method further includes:
judging the operation state of the vehicle;
under the condition that the vehicle is in a starting working condition, acquiring the duration of the dual-mass flywheel device in a resonant rotating speed stage;
and under the condition that the duration is greater than a fifth threshold value, stopping oil injection and generating restart information.
Compared with the prior art, the invention at least comprises the following beneficial effects: the dual mass flywheel device that this application embodiment provided has included first flywheel, the second flywheel, set up first encoder and second encoder and the detection direction on first flywheel and second flywheel respectively and towards the detection components of first encoder and second encoder, in the use, can connect first flywheel in the engine of vehicle, connect the second flywheel in the gearbox of vehicle, first flywheel can pass through spring coupling in the second flywheel, in order to reduce effectively that the engine end exports for gearbox end vibration, improve vehicle transmission system's torsional vibration level. During the use process of the dual-mass flywheel device, the number of the marks passing through the detection component on the first encoder and the second encoder can be respectively detected through the detection component, the rotating speeds of the first flywheel and the second flywheel can be respectively detected and acquired through the detection component, the phase difference of the first flywheel and the second flywheel can be obtained at the same time, and through the arrangement of the detection component, the first encoder and the second encoder, on the premise of not interfering the normal work of the dual-mass flywheel device, the phase difference between the first flywheel and the second flywheel and the angular acceleration of the second flywheel can be directly detected and obtained, the detection precision is high, and then whether the dual mass flywheel device is abnormally impacted by vibration can be determined according to the detection result of the detection component, the dual-mass flywheel can be protected in real time, misjudgment and excessive protection are prevented, the protection precision is improved, and the driving experience is improved; meanwhile, whether the dual-mass flywheel has functional failure or not can be accurately judged, excessive disassembly analysis is prevented, misjudgment is reduced, maintenance efficiency is improved, and maintenance cost is reduced.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic block diagram of one angle of a dual mass flywheel device of an embodiment provided herein;
FIG. 2 is a schematic block diagram of another angle of a dual mass flywheel apparatus of an embodiment provided herein;
FIG. 3 is a schematic block diagram of yet another angle of a dual mass flywheel apparatus of an embodiment provided herein;
FIG. 4 is a schematic block diagram of an engine of a vehicle according to an embodiment provided herein;
FIG. 5 is a flowchart illustrating exemplary steps of a method for controlling a vehicle according to one embodiment provided herein;
fig. 6 is a flowchart illustrating exemplary steps of a control method of a vehicle according to another embodiment of the present disclosure.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:
100 a first flywheel, 200 a first encoder, 300 a second flywheel, 400 a second encoder, 500 a detection assembly, 600 a first identification mark, 700 a second identification mark, 800 an engine, 900 an alignment mark;
201 a first marker, 401 a second marker, 501 a first sensor, 502 a second sensor.
Detailed Description
In order to better understand the technical solutions described above, the technical solutions of the embodiments of the present application are described in detail below with reference to the drawings and the specific embodiments, and it should be understood that the specific features of the embodiments and the embodiments of the present application are detailed descriptions of the technical solutions of the embodiments of the present application, and are not limitations of the technical solutions of the present application, and the technical features of the embodiments and the embodiments of the present application may be combined with each other without conflict.
As shown in fig. 1 to 3, according to a first aspect of embodiments of the present application, there is provided a dual mass flywheel apparatus, including: a first flywheel 100; a first encoder 200 disposed on an outer circumference of the first flywheel 100; a second flywheel 300; a second encoder 400 disposed on an outer circumference of the second flywheel 300; the detecting assembly 500, the detecting direction of the detecting assembly 500 is towards the first encoder 200 and the first encoder 200.
The dual mass flywheel device provided by the embodiment of the application comprises a first flywheel 100, a second flywheel 300, a first encoder 200 and a second encoder 400 which are respectively arranged on the first flywheel 100 and the second flywheel 300, and a detection assembly 500 of which the detection direction faces the first encoder 200 and the second encoder 400, wherein in the use process, the first flywheel 100 can be connected to an engine 800 of a vehicle, the second flywheel 300 can be connected to a gearbox of the vehicle, and the first flywheel 100 can be connected to the second flywheel 300 through a spring, so that the vibration output from the engine 800 end to the gearbox end can be effectively reduced, and the torsional vibration level of a vehicle transmission system can be improved. In the using process of the dual-mass flywheel device, the number of the identifications passing through the detection assembly 500 on the first encoder 200 and the second encoder 400 can be respectively detected through the detection assembly 500, so that the rotating speeds of the first flywheel 100 and the second flywheel 300 can be respectively detected and obtained through the detection assembly 500, and meanwhile, the phase difference between the first flywheel 100 and the second flywheel 300 can be obtained, through the arrangement of the detection assembly 500, the first encoder 200 and the second encoder 400, on the premise of not hindering the normal work of the dual-mass flywheel device, the phase difference between the first flywheel 100 and the second flywheel 300 and the angular acceleration of the second flywheel can be directly detected and obtained, the detection precision is high, and further, whether the dual-mass flywheel device is abnormally impacted by vibration or not can be determined through the result detected by the detection assembly 500, the real-time protection of the dual-mass flywheel can be realized, and the occurrence of misjudgment and over-protection can be prevented, the protection precision is improved, and the driving experience is improved; meanwhile, whether the dual-mass flywheel has functional failure or not can be accurately judged, excessive disassembly analysis is prevented, misjudgment is reduced, maintenance efficiency is improved, and maintenance cost is reduced.
It can be understood that, in the technical solutions in the prior art, whether the dual mass flywheel has a resonance risk is judged based on the rotation speed of the engine 800 monitored by the ECU, or the average rotation speed of the engine 800 in a specific time period, or the rotation speed of the engine 800 estimated by a preset model, and corresponding protective measures are taken. On the one hand, this rotational speed all is the bent axle signal disc signal based on speed sensor gathers, the general number of teeth of bent axle signal disc is limited, the rotational speed data precision of gathering is limited, when high rotational speed, engine 800 is very high in the short time rotational speed, the time threshold value (0.1 ~ 2S) of prior art design is still more abundant, if the vehicle appears taking off a gear, scram, operating mode such as flame-out, the probability that the impact appears in the dual mass flywheel is still very high, can't avoid dual mass flywheel resonance impact' S risk completely. In the embodiment of the present application, the speed of the first encoder 200 and the speed of the second encoder 400 passing through the detection assembly 500 can be directly detected by the detection assembly 500, and then the rotational speeds of the first flywheel 100 and the second flywheel 300 can be directly detected and obtained, and the phase difference between the first flywheel 100 and the second flywheel 300 and the angular acceleration of the second flywheel can be determined based on the rotational speeds of the first flywheel 100 and the second flywheel 300, so that the data acquisition mode is more direct, and therefore, the data acquisition is more accurate.
On the other hand, whether the dual mass flywheel fails in resonance is mainly determined by whether the spring between the first flywheel 100 and the second flywheel 300 is permanently deformed because the relative displacement of the primary mass and the secondary mass and the angular acceleration of the second flywheel exceed the normal design range when an impact is applied. In the prior art, the resonance risk is still judged in an indirect mode, the relative displacement and rotating speed conditions of the primary mass and the secondary mass cannot be directly monitored, and misjudgment is easy to occur. The dual-mass flywheel device provided by the embodiment of the application can be matched with the first encoder 200 and the second encoder 400 through the detection assembly 500, the phase difference between the first flywheel 100 and the second flywheel 300 in the use process of the dual-mass flywheel can be directly detected and obtained, and the direct judgment can be made on whether the permanent deformation occurs in the dual-mass flywheel device, so that the misjudgment can be reduced, the maintenance efficiency can be improved, and the maintenance cost can be reduced.
As shown in fig. 1 to 3, in some examples, the first encoder 200 includes a plurality of first markers 201, and the plurality of first markers 201 are distributed at equal intervals on the outer periphery of the first flywheel 100; the second encoder 400 includes a plurality of second markers 401, and the plurality of second markers 401 are equally spaced around the outer circumference of the second flywheel 300.
The first encoder 200 includes a plurality of first identifiers 201, the second encoder 400 includes a plurality of second identifiers 401, in the using process, the number of the first identifiers 201 of the detecting assembly 500 in the unit time is detected by the detecting assembly 500, so that the rotating speed and the number of the rotating turns of the first flywheel 100 can be obtained, the number of the second identifiers 401 of the detecting assembly 500 in the unit time is detected by the detecting assembly 500, so that the rotating speed and the number of the rotating turns of the second flywheel 300 can be obtained, and on this basis, the phase difference between the first flywheel 100 and the second flywheel 300 and the angular acceleration of the second flywheel 300 can be obtained.
It is understood that the more the number of the first marker 201 and the second marker 401 is set, the higher the detection accuracy is, and preferably, the number of the first marker 201 and the second marker 401 is 118.
In some examples, one first identifier 201 of the plurality of first identifiers 201 is a first bitwise identifier, and the width of the first bitwise identifier is greater than the widths of the other first identifiers 201; one second marker 401 of the plurality of second markers 401 is a second alignment marker, and the width of the second alignment marker is greater than the widths of the other second markers 401.
One first mark 201 in the plurality of first marks 201 is a first alignment mark, one second mark 401 in the plurality of second marks 401 is a second alignment mark, and the first alignment mark and the second alignment mark can be used as the starting position for installing the dual mass flywheel device through the arrangement of the first alignment mark and the second alignment mark, namely the first alignment mark and the second alignment mark are the first mark obtained by the detection component 500, so that the rotation speed and the rotation number of the first flywheel 100 and the second flywheel 300 can be recorded through the detection component 500.
As shown in fig. 2, in some examples, the dual mass flywheel device further comprises: a first identification mark 600 disposed on the first flywheel 100 and opposite to the first alignment mark; and a second identification mark 700 provided on the second flywheel 300 opposite to the second alignment mark.
The first flywheel 100 is further provided with a first identification mark 600, and the second flywheel 300 is further provided with a second identification mark 700, so that the dual mass flywheel device can be conveniently connected to an engine 800 and a gearbox of a vehicle.
As shown in fig. 1 and 3, wherein θ is in fig. 30The radian of the excircle circumference occupied by the first alignment mark and the second alignment mark is theta1… N123 … represents the counts of the first marker and the second marker for the radians of the outer circumferences occupied by the first marker and the second marker except for the first alignment marker and the second alignment marker. The first encoder 200 is arranged on the outer circumferential surface of the first flywheel 100, the second encoder 400 is arranged on the outer circumferential surface of the second flywheel 300, the first encoder 200 and the second encoder 400 do not affect the rotational inertia of the dual-mass flywheel device, the first encoder 200 and the second encoder 400 are used for simulating signal teeth on a traditional crankshaft signal panel, the number of the simulated teeth is N, preferably 118 teeth, a tooth missing structure is arranged before the 1 st tooth, the tooth missing structure on the first flywheel 100 is correspondingly a first alignment mark, the tooth missing structure on the second flywheel 300 is correspondingly a second alignment mark, the tooth missing structure occupies 2 tooth positions and is used as a detection component 500 to identify the 1 st tooth of the first encoder 200 and the second encoder 400, and the tooth missing starting position is defined as the 0-degree position of the phase of the first encoder 200 and the second encoder 400.
As shown in FIG. 3, during use, the 1 st tooth ending position angle may be calculated from the 0 position of the first encoder 200 and the second encoder 400 as θ0The angles of two subsequent adjacent teeth are both theta1。
The first identification mark 600 is arranged on the first flywheel 100, the second identification mark 700 is arranged on the second flywheel 300, the first identification mark 600 and the second identification mark 700 correspond to the position of the missing tooth starting position with a phase of 0 degrees, the rear end face of the crankshaft of the engine 800 provided with the dual-mass flywheel device is provided with an alignment mark 900, the alignment mark 900 is set according to the top dead center position of a cylinder of the crankshaft, the first identification mark 600 corresponds to the alignment mark 900 on the crankshaft when the dual-mass flywheel structure is installed, namely the position of 0 degrees of the phase of the first encoder 200 corresponds to the top dead center position of the cylinder of the engine 800.
As shown in fig. 1, in some examples, detection component 500 includes: a first sensor 501, a detection direction of the first sensor 501 is toward the first flywheel 100, and the first sensor 501 is used for acquiring first rotation information based on the first encoder 200; a second sensor 502, a detection direction of the second sensor 502 is toward the second flywheel 300, for obtaining second rotation information based on the second encoder 400.
By providing two sensors to detect the first encoder 200 and the second encoder 400, respectively, the detection accuracy can be improved.
It is understood that the first sensor 501 and the second sensor 502 may be rotational speed sensors.
As shown in fig. 1 and 3, two sensor mounting holes are formed in a housing of the dual mass flywheel device, and are used for mounting a first sensor 501 and a second sensor 502, the first sensor 501 and the second sensor 502 count the numbers of teeth on the first flywheel 100 and the second flywheel 300 in real time through the first encoder 200 and the second encoder 400, the counting is started from the 1 st tooth from the position of 0 ° in phase, the real-time number of teeth on the first flywheel 100 is recorded as N1, the real-time number of teeth on the second flywheel 300 is recorded as N2, one rotation circle of the encoder is a cycle, and the N1 and the N2 are cleared and automatically start the next cycle after reaching the total number of teeth N. The first sensor 501 and the second sensor 502 input the measured tooth numbers N1 and N2 to the ECU, and the ECU internal controller calculates the phases θ of the first flywheel 100 and the first flywheel 100 by the following formulaN1And thetaN2：
θN1＝θ0+(N1-1)θ1
θN2＝θ0+(N2-1)θ1
Wherein, thetaN1Is the corresponding phase of the first flywheel 100, theta0The radian theta of the first alignment mark or the second alignment mark occupying the outer circle of the first flywheel 1001The radian of the outer circle of the first flywheel 100 occupied by the first mark 201 or the second mark 401 except the first alignment mark and the second alignment mark, N1The number of the first marks 201 detected by the first sensor 501; thetaN2Is the corresponding phase, N, of the second flywheel 3002Is the number of second markers 401 detected by the second sensor 502.
Calculating the first flywheel 100 phase θ based on the real-time phase dataN1And the second flyPhase theta of wheel 300N2Since the phase difference between the first flywheel 100 and the second flywheel 300 does not usually exceed 60 °, the real-time phase difference Δ θ is calculated according to the following formula:
Δθ＝|θN1-θN2if thetaN1-θN2|＜60°；
Δθ＝360°-|θN1-θN2If thetaN1-θN2|＞300°
Where Δ θ is the phase difference, θN1Is the corresponding phase of the first flywheel 100, thetaN2Is the corresponding phase of the second flywheel 300.
Meanwhile, the rotating speed V1 of the first flywheel 100 and the rotating speed V2 of the second flywheel 300 can be calculated in real time according to the sampling frequency of the detecting assembly 500 and the angle between adjacent teeth of the first encoder 200 and the second encoder 400.
Wherein, the derivative of the rotating speed to the time is the angular acceleration.
On the basis, the phase difference between the first flywheel 100 and the second flywheel 300 of the dual-mass flywheel device and the angular acceleration of the second flywheel 300 can be directly measured through the detection assembly 500, whether the dual-mass flywheel device is abnormally impacted by vibration or not is judged, the dual-mass flywheel device can be protected in real time, misjudgment and over-protection are prevented, the protection precision is improved, and the driving experience is improved; meanwhile, whether the dual-mass flywheel device fails in function or not can be accurately judged, excessive disassembly analysis is prevented, misjudgment is reduced, maintenance efficiency is improved, and maintenance cost is reduced.
As shown in fig. 1 and 4, according to a second aspect of an embodiment of the present application, there is provided a vehicle including: the dual-mass flywheel device adopts the technical scheme; an engine 800, to which the first flywheel 100 is connected; the gearbox and the second flywheel 300 are connected to the gearbox.
The vehicle provided by the embodiment of the application comprises the dual mass flywheel device according to the technical scheme, so that the vehicle has all the beneficial effects of the dual mass flywheel device according to the technical scheme.
As shown in fig. 4, in some examples, the vehicle further includes: and an alignment mark 900 provided on the engine 800, wherein the first identification mark 600 on the first flywheel 100 is disposed opposite to the alignment mark 900 when the dual mass flywheel is mounted on the engine 800.
By forming the alignment marks 900 on the engine 800, accurate installation of the dual mass flywheel device is facilitated, and subsequent detection by the detection device to determine the phase difference between the first flywheel 100 and the second flywheel 300 and the angular acceleration of the second flywheel 300 is facilitated.
As shown in fig. 3, a first identification mark 600 is disposed on the first flywheel 100, a second identification mark 700 is disposed on the second flywheel 300, the first identification mark 600 and the second identification mark 700 correspond to a tooth missing start position at a phase position of 0 °, an alignment mark 900 is disposed on a rear end surface of a crankshaft of the engine 800 equipped with the dual mass flywheel device, the alignment mark 900 is set according to a top dead center position of a cylinder of the crankshaft, the first identification mark 600 corresponds to the alignment mark 900 on the crankshaft when the dual mass flywheel structure is installed, that is, a phase position of 0 ° of the first encoder 200 corresponds to the top dead center position of the cylinder of the engine 800.
As shown in fig. 5, according to a third aspect of the embodiment of the present application, there is provided a control method of a vehicle for controlling the vehicle of the above-described aspect, the control method including:
step 111: and based on the detection assembly, acquiring the phase difference between the first flywheel and the second flywheel and the angular acceleration of the second flywheel through the first encoder and the second encoder. Through detection component and first encoder and second encoder cooperation, the direct detection obtains the phase difference between first flywheel and the second flywheel in the dual mass flywheel use, can make direct judgement to whether permanent deformation appears in dual mass flywheel device, can reduce the erroneous judgement, improves maintenance efficiency, reduces cost of maintenance.
Step 112: and determining the working state of the dual-mass flywheel device based on the phase difference and the angular acceleration. The dual-mass flywheel device is determined through the phase difference and the angular acceleration, so that abnormal vibration impact and functional failure of the dual-mass flywheel device can be detected, the detection precision is high, and the misjudgment rate is low.
In some examples, the step of obtaining, based on the detection component, a phase difference of the first flywheel and the second flywheel and an angular acceleration of the second flywheel through the first encoder and the second encoder includes: acquiring a first number of first identifications recognized on a first flywheel within a first unit time; acquiring a second number of second identifications recognized on a second flywheel within a first unit time; based on the first number and the second number, a phase difference and an angular acceleration are determined.
As shown in fig. 3, two sensor mounting holes are provided on the housing of the dual mass flywheel device, and are used for the first sensor 501 and the second sensor 502, the first sensor 501 and the second sensor 502 count the numbers of teeth on the first flywheel 100 and the second flywheel 300 in real time through the first encoder 200 and the second encoder 400, from the position of 0 ° in phase, the number is counted from the 1 st tooth, the real-time number of teeth on the first flywheel 100 is recorded as N1, the real-time number of teeth on the second flywheel 300 is recorded as N2, one rotation of the encoder is a cycle, and the next cycle is automatically started after N1 and N2 reach the total number of teeth N. The first sensor 501 and the second sensor 502 input the measured tooth numbers N1 and N2 to the ECU, and the ECU internal controller calculates the phases θ of the first flywheel 100 and the first flywheel 100 by the following formulaN1And thetaN2：
θN1＝θ0+(N1-1)θ1
θN2＝θ0+(N2-1)θ1
Wherein, thetaN1Is the corresponding phase, θ, of the first flywheel 1000The radian theta of the first alignment mark or the second alignment mark occupying the outer circle of the first flywheel 1001The radian of the outer circle of the first flywheel 100 occupied by the first mark 201 or the second mark 401 except the first alignment mark and the second alignment mark, N1The number of the first marks 201 detected by the first sensor 501; thetaN2Is the corresponding phase, N, of the second flywheel 3002Is the number of second markers 401 detected by the second sensor 502.
Calculating the phase θ of the first flywheel 100 based on the real-time phase dataN1Phase theta with the second flywheel 300N2Difference Delta theta due to the first flywheel 100 and the second flywheel 30The 0 phase difference will not normally exceed 60 °, so the real-time phase difference Δ θ is calculated according to the following equation:
Δθ＝|θN1-θN2if thetaN1-θN2|＜60°；
Δθ＝360°-|θN1-θN2If thetaN1-θN2|＞300°
Where Δ θ is the phase difference, θN1Is the corresponding phase of the first flywheel 100, thetaN2Is the corresponding phase of the second flywheel 300.
Meanwhile, the rotating speed V1 of the first flywheel 100 and the rotating speed V2 of the second flywheel 300 can be calculated in real time according to the sampling frequency of the detecting assembly 500 and the angle between adjacent teeth of the first encoder 200 and the second encoder 400.
Wherein, the derivative of the rotating speed to the time is the angular acceleration.
On the basis, the phase difference between the first flywheel and the second flywheel of the dual-mass flywheel device and the angular acceleration of the second flywheel can be directly measured through the detection assembly, whether the dual-mass flywheel device is abnormally impacted by vibration or not is judged, the dual-mass flywheel device can be protected in real time, misjudgment and excessive protection are prevented, the protection precision is improved, and the driving experience is improved; meanwhile, whether the dual-mass flywheel device fails in function or not can be accurately judged, excessive disassembly analysis is prevented, misjudgment is reduced, maintenance efficiency is improved, and maintenance cost is reduced.
In some examples, the step of determining the operating state of the dual mass flywheel arrangement based on the phase difference and the angular acceleration comprises: determining that the dual-mass flywheel device is in an abnormal working state under the condition that the phase difference is greater than a first threshold and smaller than a second threshold, or the angular acceleration is greater than a third threshold and smaller than a fourth threshold; adjusting the working state of the engine under the condition that the dual-mass flywheel device is in an abnormal working state; and/or determining that the dual mass flywheel device is in a failure state under the condition that the phase difference is greater than or equal to a second threshold value or the angular acceleration is greater than or equal to a fourth threshold value; and generating maintenance prompt information under the condition that the dual-mass flywheel device is in a failure state.
Under the condition that the phase difference is greater than the first threshold and smaller than the second threshold, or the angular acceleration is greater than the third threshold and smaller than the fourth threshold, it is indicated that the phase difference and the angular acceleration of the first flywheel and the second flywheel of the dual-mass flywheel device are greater but within a controllable range, and in this case, the dual-mass flywheel device may be subjected to abnormal vibration impact, so that the working state of the engine can be adjusted, the phase difference between the first flywheel and the second flywheel of the dual-mass flywheel device is smaller than the first threshold, and the angular acceleration is smaller than the third threshold so as to protect the dual-mass flywheel.
In some examples, the first threshold value is less than or equal to 10 °, and the second threshold value is greater than the first threshold value.
In some examples, the third threshold value is less than or equal to 250rad/s2The value of the fourth threshold is less than or equal to 650rad/s2。
In some examples, the step of adjusting the operating state of the engine may include, when the vehicle is in a high torque demand, for example, a vehicle hill climbing phase, controlling the engine to increase the rotational speed such that the phase difference between the first flywheel and the second flywheel of the dual mass flywheel device is less than a first threshold value and the angular acceleration is less than a third threshold value; when the vehicle is in a fault state or a misoperation state, such as when the vehicle is frequently switched between starting and flameout, the oil supply to the engine can be stopped, so that the phase difference between the first flywheel and the second flywheel of the dual-mass flywheel device is smaller than a first threshold value, and the angular acceleration is smaller than a third threshold value.
And under the condition that the phase difference is greater than or equal to the second threshold value or the angular acceleration is greater than or equal to the fourth threshold value, the dual-mass flywheel device is in a failure state, and in this condition, maintenance prompt information can be generated and displayed through a display screen of the vehicle to remind that the dual-mass flywheel device is maintained and maintained.
In some examples, the control method further comprises: judging the operation state of the vehicle; under the condition that the vehicle is in a starting working condition, acquiring the duration of the dual-mass flywheel device in a resonant rotating speed stage; and under the condition that the duration is greater than a fifth threshold value, stopping oil injection and generating restart information.
The control method can also comprise the step of judging the operation state of the vehicle, when the vehicle is in the starting state, if the duration of the dual-mass flywheel device in the resonant rotation speed stage is greater than a fifth threshold value, the vehicle is in the state of long-term starting but incomplete starting, in this case, the vehicle may have a fault, and therefore the vehicle should quit starting, stop oil injection, generate restarting information, and restart the vehicle when the user confirms the starting again.
It will be appreciated that the step of obtaining the duration of the resonant speed phase of the dual mass flywheel arrangement may comprise sensing the speed of the engine, and that a speed of the engine in the range 300 to 600rpm indicates that the dual mass flywheel arrangement is in the resonant speed phase.
It can be understood that, under the condition that the vehicle temperature is low and does not meet the starting condition or the vehicle oil pressure is low, the dual-mass flywheel device can be in the resonant rotation speed stage for a long time when the vehicle is forcibly started, and the dual-mass flywheel device and the vehicle can be further protected by monitoring the duration of the dual-mass flywheel device in the resonant rotation speed stage.
In some examples, the value of the fifth threshold is less than or equal to 0.1 s.
As shown in fig. 6, in some examples, a control method of a vehicle includes:
step 121: igniting the vehicle;
step 122: judging whether the vehicle is in an engine starting working condition, if so, executing a step 123, and if not, finishing; it can be understood that after the engine is ignited, whether the engine is in a starting working condition or not can be identified through the starter excitation signal, and if so, the time during which the primary mass rotating speed is in the resonance rotating speed is calculated.
Step 123: judging whether the time length at the resonance rotating speed exceeds a fifth threshold value, if so, executing a step 124;
step 124: stopping oil injection, restarting, and then executing step 122;
step 125: determining that the vehicle is in a normal operation condition;
step 126: judging whether the phase difference between the first flywheel and the second flywheel is larger than a first threshold and smaller than a second threshold or the angular acceleration is larger than a third threshold and smaller than a fourth threshold, if so, executing a step 127, otherwise, executing a step 125;
step 127: controlling oil injection, ignition and air intake parameters to enable the dual-mass flywheel device to exit from a resonance working condition;
step 128: judging whether the phase difference between the first flywheel and the second flywheel is greater than or equal to a second threshold value or the angular acceleration is greater than or equal to a fourth threshold value, if so, executing a step 129, otherwise, executing a step 125;
step 129: and determining that the dual-mass flywheel device fails, and generating maintenance prompt information.
In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A dual mass flywheel apparatus comprising:
a first flywheel;
a first encoder disposed on an outer periphery of the first flywheel;
a second flywheel;
a second encoder disposed on an outer periphery of the second flywheel;
the detection component is arranged in a manner that the detection direction of the detection component faces to the first encoder and the first encoder.
2. A dual mass flywheel apparatus according to claim 1,
the first encoder comprises a plurality of first marks which are distributed on the periphery of the first flywheel at equal intervals;
the second encoder comprises a plurality of second marks which are distributed on the periphery of the second flywheel at equal intervals.
3. A dual mass flywheel apparatus according to claim 2,
one first mark in the plurality of first marks is a first alignment mark, and the width of the first alignment mark is greater than the widths of other first marks;
one of the second marks is a second alignment mark, and the width of the second alignment mark is greater than the widths of the other second marks;
the dual mass flywheel apparatus further comprises:
the first identification mark is arranged on the first flywheel and is opposite to the first alignment mark;
and the second identification mark is arranged on the second flywheel and is opposite to the second alignment mark.
4. A dual mass flywheel arrangement according to any of claims 1 to 3, wherein the detection assembly comprises:
the detection direction of the first sensor faces to the first flywheel and is used for acquiring first rotation information based on a first encoder;
and the detection direction of the second sensor faces to the second flywheel and is used for acquiring second rotation information based on the second encoder.
5. A vehicle, characterized by comprising:
the dual mass flywheel arrangement of any one of claims 1 to 4;
an engine, the first flywheel being connected to the engine;
a gearbox to which the second flywheel is connected.
6. The vehicle of claim 5, further comprising:
and the alignment mark is arranged on the engine, and when the dual-mass flywheel is installed on the engine, the first identification mark on the first flywheel is arranged opposite to the alignment mark.
7. A control method of a vehicle for controlling the vehicle according to claim 5 or 6, the control method comprising:
acquiring a phase difference between the first flywheel and the second flywheel and an angular acceleration of the second flywheel through the first encoder and the second encoder based on the detection component;
determining an operating state of the dual mass flywheel device based on the phase difference and the angular acceleration.
8. The control method according to claim 7, wherein the step of obtaining, based on the detection component, a phase difference between the first flywheel and the second flywheel and an angular acceleration of the second flywheel through the first encoder and the second encoder includes:
obtaining a first number of first identifiers recognized on the first flywheel within a first unit time;
obtaining a second number of second tags identified on the second flywheel within the first unit of time;
determining the phase difference and the angular acceleration based on the first number and the second number.
9. The control method according to claim 7, wherein the step of determining the operating state of the dual mass flywheel device based on the phase difference and the angular acceleration comprises:
determining that the dual-mass flywheel device is in an abnormal working state under the condition that the phase difference is greater than a first threshold and smaller than a second threshold, or the angular acceleration is greater than a third threshold and smaller than a fourth threshold;
adjusting the operating state of the engine when the dual mass flywheel device is in an abnormal operating state; and/or
Determining that the dual mass flywheel device is in a failure state when the phase difference is greater than or equal to a second threshold value or the angular acceleration is greater than or equal to a fourth threshold value;
and generating maintenance prompt information under the condition that the dual-mass flywheel device is in a failure state.
10. The control method according to any one of claims 7 to 9, characterized by further comprising:
judging the operation state of the vehicle;
under the condition that the vehicle is in a starting working condition, acquiring the duration of the dual-mass flywheel device in a resonant rotating speed stage;
and under the condition that the duration is greater than a fifth threshold value, stopping oil injection and generating restart information.
CN202210055310.8A 2022-01-18 2022-01-18 Dual mass flywheel device, vehicle, and control method for vehicle Pending CN114526156A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210055310.8A CN114526156A (en) 2022-01-18 2022-01-18 Dual mass flywheel device, vehicle, and control method for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210055310.8A CN114526156A (en) 2022-01-18 2022-01-18 Dual mass flywheel device, vehicle, and control method for vehicle

Publications (1)

Publication Number Publication Date
CN114526156A true CN114526156A (en) 2022-05-24

Family

ID=81621308

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210055310.8A Pending CN114526156A (en) 2022-01-18 2022-01-18 Dual mass flywheel device, vehicle, and control method for vehicle

Country Status (1)

Country Link
CN (1) CN114526156A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104198181A (en) * 2014-07-31 2014-12-10 长城汽车股份有限公司 Method and system for resonance detection of dual mass flywheel
CN107796640A (en) * 2016-09-06 2018-03-13 北京汽车动力总成有限公司 The torsional oscillation test device and method of double mass flywheel formula torsional vibration damper
CN109141703A (en) * 2018-08-28 2019-01-04 中国北方发动机研究所(天津) The device and method of engine torque measurement under a kind of loading condition
CN110103941A (en) * 2019-04-18 2019-08-09 浙江吉利控股集团有限公司 Guard method, system and the terminal of double mass flywheel in a kind of hybrid vehicle
CN110546057A (en) * 2017-04-18 2019-12-06 法国大陆汽车公司 Method for protecting a dual mass flywheel by detecting the dual mass flywheel entering resonance while the engine is running
WO2020196359A1 (en) * 2019-03-25 2020-10-01 いすゞ自動車株式会社 Determination device, determination method, and determination program
CN113446354A (en) * 2020-03-27 2021-09-28 舍弗勒技术股份两合公司 Dual mass flywheel

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104198181A (en) * 2014-07-31 2014-12-10 长城汽车股份有限公司 Method and system for resonance detection of dual mass flywheel
CN107796640A (en) * 2016-09-06 2018-03-13 北京汽车动力总成有限公司 The torsional oscillation test device and method of double mass flywheel formula torsional vibration damper
CN110546057A (en) * 2017-04-18 2019-12-06 法国大陆汽车公司 Method for protecting a dual mass flywheel by detecting the dual mass flywheel entering resonance while the engine is running
CN109141703A (en) * 2018-08-28 2019-01-04 中国北方发动机研究所(天津) The device and method of engine torque measurement under a kind of loading condition
WO2020196359A1 (en) * 2019-03-25 2020-10-01 いすゞ自動車株式会社 Determination device, determination method, and determination program
CN110103941A (en) * 2019-04-18 2019-08-09 浙江吉利控股集团有限公司 Guard method, system and the terminal of double mass flywheel in a kind of hybrid vehicle
CN113446354A (en) * 2020-03-27 2021-09-28 舍弗勒技术股份两合公司 Dual mass flywheel

Similar Documents

Publication Publication Date Title
US7353803B2 (en) Misfire detection apparatus for internal combustion engine based on piston speed
KR0154985B1 (en) Method and apparatus for detecting combustion conditions in multicylinder internal combustion engine upon engine speed evaluation
EP0437212B1 (en) Method and apparatus for detecting misfired cylinder of internal combustion engine
US5862505A (en) Misfire discriminating method and apparatus for an engine
JPH05500096A (en) Engine diagnostic equipment and method
EP2390489B1 (en) Apparatus and method for estimating bounce back angle of a stopped engine
US7240540B2 (en) Rough road detection system
US9284901B2 (en) Method and device for operating an internal combustion engine
JPH0436047A (en) Diagnostic device for misfire of engine
US8417411B2 (en) Torque sensor performance diagnostic systems and methods
CN107076039B (en) Method and control device for detecting a combustion process of an internal combustion engine of a hybrid vehicle
CN110546057B (en) Method for protecting a dual mass flywheel by detecting that the dual mass flywheel is in resonance while the engine is running
CN101084423A (en) Knock determination device for internal combustion engine
US5447061A (en) Misfire detection method for engine
CN111140354B (en) Method and device for detecting fire of whole vehicle
US5284114A (en) Apparatus and method for controlling an internal combustion engine
CN114526156A (en) Dual mass flywheel device, vehicle, and control method for vehicle
EP0424917B1 (en) System for identifying misfire cylinder in internal combustion engine
JP2002371905A (en) Control device for internal combustion engine, inertia moment estimate method for internal combustion engine, load estimate method for internal combustion engine and operation control method for internal combustion engine
JP4936558B2 (en) Engine control device
CN102305139B (en) Starting method for four-stroke electronic injection diesel engine
CN101576014A (en) Method for processing failure of engine
US6278934B1 (en) System and method for detecting engine misfires using optimal phase delay angle
US6389363B1 (en) Process for calculating the torque of an electronic injection internal combustion engine
JPH05340294A (en) Misfire detection method by crank shaft rotation fluctuation

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20220524

RJ01 Rejection of invention patent application after publication