CN110103944A - A kind of engine startup method, device and equipment - Google Patents
A kind of engine startup method, device and equipment Download PDFInfo
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- CN110103944A CN110103944A CN201910312908.9A CN201910312908A CN110103944A CN 110103944 A CN110103944 A CN 110103944A CN 201910312908 A CN201910312908 A CN 201910312908A CN 110103944 A CN110103944 A CN 110103944A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000002347 injection Methods 0.000 claims abstract description 67
- 239000007924 injection Substances 0.000 claims abstract description 67
- 239000007858 starting material Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 239000000446 fuel Substances 0.000 claims description 19
- 230000007613 environmental effect Effects 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 11
- 230000008450 motivation Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000012208 gear oil Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/20—Reducing vibrations in the driveline
-
- 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
- F02D41/30—Controlling fuel injection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
- F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/20—Reducing vibrations in the driveline
- B60W2030/203—Reducing vibrations in the driveline related or induced by the clutch
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/20—Reducing vibrations in the driveline
- B60W2030/206—Reducing vibrations in the driveline related or induced by the engine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0638—Engine speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0616—Position of fuel or air injector
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The present invention relates to a kind of engine startup method, device and equipment, including when determining through clutch starting engine, obtain clutch gear；Judge whether to need to start engine by after injection according to clutch gear；If necessary to start engine by after injection, then the first entry condition for reaching engine is judged whether according to clutch moment of torque and engine speed；If clutch moment of torque and engine speed meet first entry condition, start engine；If clutch moment of torque and engine speed are not up to first entry condition, the step of execution judges whether the first entry condition for meeting engine according to clutch moment of torque and engine speed is returned.The present invention can be when clutch starts, and situation when flexibly being started according to clutch determines engine injection time, avoids too early oil spout；Start three kinds of start-up modes, distributive value when engine controls starting respectively simultaneously for the starting of 12V starter motor, clutch starting and ISG.
Description
Technical field
The present invention relates to engine starting system technical field, in particular to a kind of engine startup method, device and set
It is standby.
Background technique
With the exhaustion of traditional energy, new energy application is universal, especially in automobile industry, perhaps great automaker
Hybrid power is selected to replace traditional fuel system, technical ability saves fuel, reduces the consumption of the energy, and can guarantee the continuous of automobile
Boat ability.
Existing hybrid power system can be main propelling machinery by internal combustion engine and motor is auxiliary propulsion plant driving.Root
The mixed dynamic scheme of single motor can be divided into five major class by the position according to motor relative to conventional power system, respectively with P0, P1, P2,
P3 and P4.
Common hybrid power system is P2 and P3 system, but in P2 system when motor-driven vehicle, and can not be same
Shi Huishou electric energy, there are bottlenecks in efficiency；Motor must be connected with axle in P3 system, therefore motor is not used to starting hair
Motivation, motor can not be integrated with gearbox or engine, need to occupy additional volume.Therefore a kind of P2.5 system is developed
System, can be in conjunction with P2 system and P3 system the advantages of, the shortcomings that avoiding P2 system and P3 system.
The engine start of P2.5 hybrid vehicle is there are three types of mode: the starting of 12V starter motor, motor (ISG) starting and
Clutch starting.Wherein 12V starter motor starting be conventional truck Starting mode, on hybrid vehicle use priority compared with
It is low.ISG starting and clutch starting are two kinds of newly-increased Starting mode of P2.5 hybrid vehicle: ISG starting is commonly used in vehicle
The starting of engine when speed is 0 or speed very low (< 10kph), ISG output torque, clutch 2 combine, counter to drag engine start；
Clutch starting combines and (depends on commonly used in low (> 10kph), the engine start of middle and high speed, clutch 1 or clutch 2
In starting gear) by the way that vehicle driving inertia is counter drag engine start, while ISG output torque to wheel end compensates, clutch
Device starting divides different start-up modes (mainly according to clutch moment of torque export speed) again, such as quick start, clean boot, smooth
Starting etc., different operating condition when meeting starting.
In ISG starting and clutch starting engine process, i.e., during vehicle changes to oily electricity mixing from pure cutting,
Clutch starting irregularity problem becomes apparent when being easier to occur the starting problems, especially low speed such as impact, shake.Wherein
There are two the reasons related to engine startup control: one is engine commencement of fuel injection after clutch starting engine
The opportunity of burning is too early, and engine combustion torque and clutch moment of torque generate interference；Another reason is engine startup
The control logic of fuel injection amount does not distinguish clutch starting and ISG starting, all continues to use the fuel injection amount of 12V starting, 12V
Towing astern revolving speed is lower (200~300rpm) when starting, needs biggish fuel injection amount, makes engine from lower towing astern revolving speed
Starting rotating speed of target is quickly exceeded, and the towing astern revolving speed of ISG starting and clutch starting is higher, what engine startup needed
Fuel injection amount is smaller.
In order to solve problem above, need to research and develop a kind of engine startup method, device and equipment, energy in P2.5 system
Enough in clutch starting, situation when flexibly being started according to clutch determines engine injection time, avoids too early oil spout；
Start three kinds of start-up modes, oil spout when engine controls starting respectively simultaneously for the starting of 12V starter motor, clutch starting and ISG
Amount.
Summary of the invention
In view of the above problems in the prior art, the purpose of the present invention is to provide a kind of engine startup method, device and
Equipment introduces after injection, guarantees flexibly to determine engine injection time when clutch starting is started, avoid too early oil spout；
Simultaneously using in the case where the starting of 12V starter motor, clutch starting and ISG start three kinds of start-up modes, control distributive value respectively, reduce at
This.
To solve the above-mentioned problems, the present invention provides a kind of engine startup method, comprising:
When determining through clutch starting engine, obtains and work as front clutch gear；
Judge whether to need to start engine by after injection according to the clutch gear；
If necessary to start engine by after injection, then start according to the current clutch moment of torque of vehicle and currently
Machine revolving speed judges whether the first entry condition for reaching the engine；
If the clutch moment of torque and the engine speed meet first entry condition, start described in starting
Machine；
If the clutch moment of torque and the engine speed are not up to first entry condition, execution root is returned
Judge whether the first entry condition for meeting the engine according to the current clutch moment of torque of vehicle and current engine speed
The step of.
Further, the method also includes:
If you do not need to starting engine by after injection, then judge whether the current engine speed of vehicle reaches hair
Second entry condition of motivation；
If the engine speed reaches second entry condition, start the engine；
If the engine speed is not up to second entry condition, return execute judge vehicle currently start
Whether machine revolving speed reaches the step of the second entry condition of engine.
Further, the acquisition is before front clutch gear, further includes:
Calculate the distributive value for starting the engine；
When receiving engine start request, the current vehicle speed of vehicle is obtained；
Judged whether to meet zero speed according to the speed；
If the speed meets zero speed, according to current water tank water temperature, environmental pressure, fuel injection mode, calculate true
Determine the distributive value of engine described in motor start-up.
It is further, described to be judged whether to meet zero speed according to the speed further include:
If the speed is unsatisfactory for zero speed, judged whether to be less than preset speed according to the speed；
If the speed is less than the preset speed, according to current water tank water temperature, environmental pressure, oil spout mould
Formula calculates the distributive value for determining that 12V starter motor starts the engine.
If the speed is not less than the preset speed, according to current water tank water temperature, environmental pressure, oil spout mould
Formula calculates the distributive value for determining that clutch starts the engine.
Further, it states clutch gear and judges whether to need to start engine by after injection and include:
Judge whether the clutch gear reaches preset gear point；
If the clutch gear reaches the gear point, do not need to start engine by after injection；
If the clutch gear is not up to the gear point, need to start engine by after injection.
Further, first entry condition includes:
Determine preset torque targets value, preset engine speed target value and preset engine speed goal discrepancy
Value；
According to the revolving speed and the engine speed target value, current engine speed difference is calculated
Judged whether to be greater than the torque targets value according to the clutch moment of torque；
If the clutch moment of torque is greater than the torque targets value, first entry condition is not met.
Further, if the clutch moment of torque is not more than the torque targets value, according to the engine speed
Difference judges whether to be greater than the engine speed target difference；
If the engine speed difference is greater than the engine speed target difference, first starting is not met
Condition；
If the engine speed difference is not more than the engine speed target difference, meet first starting
Condition.
Further, second entry condition includes:
Determine preset engine speed target value；
Judged whether to be greater than the engine speed target value according to the revolving speed；
If the revolving speed is greater than the engine speed target value, meet second entry condition；
If the revolving speed is not more than the engine speed target value, second entry condition is not met.
Another aspect of the present invention also protects a kind of engine starting gear, comprising:
Clutch gear acquiring unit, for determining that front clutch shelves are worked as in acquisition when starting engine by clutch
Position；
First judging unit, for judging whether to need to start by after injection to start according to the clutch gear
Machine；
Second judgment unit, for needing to start engine, the then clutch current according to vehicle by after injection
Torque and current engine speed judge whether the first entry condition for reaching the engine；
First execution unit, for meeting first trip bar in the clutch moment of torque and the engine speed
Part then starts the engine；
Second execution unit, for being not up to first trip bar in the clutch moment of torque and the engine speed
Part then returns to execution and judges whether to meet the engine according to the current clutch moment of torque of vehicle and current engine speed
The first entry condition the step of.
Another aspect of the present invention also protects a kind of engine start equipment, comprising: information collecting device, clutch control
Device, electric machine controller, 12V starting machine controller and engine controller；
The clutch controller, for determining that front clutch gear is worked as in acquisition when starting engine by clutch；
The clutch controller, for judging whether to need to start by after injection to send out according to the clutch gear
Motivation；
The clutch controller and the engine controller, for needing to start engine by after injection,
The first starting for reaching the engine is then judged whether according to the current clutch moment of torque of vehicle and current engine speed
Condition；
The clutch controller and the engine controller, for turning in the clutch moment of torque and the engine
Speed meets first entry condition, then starts the engine；
The clutch controller and the engine controller, for turning in the clutch moment of torque and the engine
Speed is not up to first entry condition, then returns to execution according to the current clutch moment of torque of vehicle and current engine speed
Judge whether the step of meeting the first entry condition of the engine.
Due to above-mentioned technical proposal, the invention has the following advantages:
1) a kind of engine startup method, device and equipment of the invention can be started using delay oil spout in clutch
Under engine conditions, flexibly engine injection time is judged, avoid leading to engine torque and clutch because injection time is too early
Phenomena such as device torque generates interference, generates impact and shake.
2) a kind of engine startup method, device and equipment of the invention, for 12V starter motor starting, clutch starting and
ISG starts three kinds of start-up modes, and distributive value when engine controls starting respectively avoids the distributive value one under various start-up modes
Directly, phenomena such as generating impact and shake, while fuel can be saved, reduce cost.
Detailed description of the invention
It, below will be to required in embodiment or description of the prior art in order to illustrate more clearly of technical solution of the present invention
The attached drawing used is briefly described.It should be evident that drawings in the following description are only some embodiments of the invention, it is right
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Its attached drawing.
Fig. 1 is the flow chart provided in an embodiment of the present invention for needing after injection starting engine method；
Fig. 2 is that the after injection provided in an embodiment of the present invention that do not need starts engine method；
Fig. 3 is the flow chart of the distributive value of the starting engine provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of engine starting gear provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of clutch gear acquiring unit provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of the first judging unit provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of second judgment unit provided in an embodiment of the present invention；
Fig. 8 is the structural schematic diagram of third judging unit provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art without making creative work it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
" one embodiment " or " embodiment " referred to herein, which refers to, may be included at least one implementation of the invention
A particular feature, structure, or characteristic.In the description of the present invention, it is to be understood that, term " on ", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "top", "bottom" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of retouching
It states the present invention and simplifies description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for retouching
Purpose is stated, relative importance is not understood to indicate or imply or implicitly indicates the quantity of indicated technical characteristic.By
This defines " first ", the feature of " second " can be expressed or what is implied includes one or more of the features.Moreover,
Term " first ", " second " etc. are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It answers
The data that the understanding uses in this way are interchangeable under appropriate circumstances, so that the embodiment of the present invention described herein can be to remove
Sequence other than those of illustrating or describe herein is implemented.
Embodiment one
The present embodiment one provides a kind of vehicle shift method, as shown in Figure 1, comprising:
S101. it when determining through clutch starting engine, obtains and works as front clutch gear.
Specifically, the acquisition is before front clutch gear, further includes: the distributive value for starting the engine is calculated,
The distributive value includes:
S301. when receiving engine start request, the current vehicle speed of vehicle is obtained；
S302. judged whether to meet zero speed according to the speed；
If the speed meets zero speed, according to current water tank water temperature, environmental pressure, fuel injection mode, calculate true
Determine the distributive value of engine described in electric motor starting.
It is further, described to be judged whether to meet zero speed according to the speed further include:
S303. if the speed is unsatisfactory for zero speed, judged whether to be less than preset speed according to the speed；
If the speed is less than the preset speed, according to current water tank water temperature, environmental pressure, oil spout mould
Formula calculates the distributive value for determining that 12V starter motor starts the engine.
If the speed is not less than the preset speed, according to current water tank water temperature, environmental pressure, oil spout mould
Formula calculates the distributive value for determining that clutch starts the engine.
Further, the preset speed is 10Kph.
S102. judge whether to need to start engine by after injection according to the clutch gear.
Further, judge whether the clutch gear reaches preset gear point；
If the clutch gear reaches the gear point, do not need to start engine by after injection；
If the clutch gear is not up to the gear point, need to start engine by after injection.
S103. if necessary to start engine by after injection, then according to the current clutch moment of torque of vehicle and currently
Engine speed judge whether the first entry condition for reaching the engine.
If the clutch moment of torque and the engine speed meet first entry condition, start described in starting
Machine；
If the clutch moment of torque and the engine speed are not up to first entry condition, execution root is returned
Judge whether the first entry condition for meeting the engine according to the current clutch moment of torque of vehicle and current engine speed
The step of.
Specifically, first entry condition includes:
Determine preset torque targets value, preset engine speed target value and preset engine speed goal discrepancy
Value；
According to the revolving speed and the engine speed target value, current engine speed difference is calculated；
Judged whether to be greater than the torque targets value according to the clutch moment of torque；
If the clutch moment of torque is greater than the torque targets value, first entry condition is not met；
If the clutch moment of torque is not more than the torque targets value, it is according to engine speed difference judgement
It is no to be greater than the engine speed target difference；
If the engine speed difference is greater than the engine speed target difference, first starting is not met
Condition；
If the engine speed difference is not more than the engine speed target difference, meet first starting
Condition.
Further, the torque targets value is -3Nm.
Further, the engine speed target difference is 50rpm.
Specifically, as shown in Fig. 2, the method also includes:
S201. the current engine speed of vehicle is obtained；
S202. when do not need by after injection start engine, judge whether the revolving speed reaches the second of engine
Entry condition；
If the engine speed reaches second entry condition, start the engine；
If the engine speed is not up to second entry condition, return execute judge vehicle currently start
Whether machine revolving speed reaches the step of the second entry condition of engine.
Specifically, second entry condition includes:
Determine preset engine speed target value；
Judged whether to be greater than the engine speed target value according to the revolving speed；
If the revolving speed is greater than the engine speed target value, meet second entry condition；
If the revolving speed is not more than the engine speed target value, second entry condition is not met.
Further, the engine speed target value is 900rpm.
The present embodiment one provides a kind of engine startup method, introduces after injection, guarantees when clutch starting is started,
Flexibly determine engine injection time, avoids too early oil spout；Simultaneously using in the starting of 12V starter motor, clutch starting and ISG starting
Under three kinds of start-up modes, distributive value is controlled respectively, reduces cost.
Embodiment two
The present embodiment two provides a kind of engine starting gear, as shown in Figure 4, comprising:
Clutch gear acquiring unit 400, for determining that front clutch is worked as in acquisition when starting engine by clutch
Gear；
First judging unit 500, for judging whether to need to start by after injection to send out according to the clutch gear
Motivation；
Second judgment unit 600, for needing to start engine, the then clutch current according to vehicle by after injection
Device torque and current engine speed judge whether the first entry condition for reaching the engine；
First execution unit 700, for meeting first starting in the clutch moment of torque and the engine speed
Condition then starts the engine；
Second execution unit 800 is opened for being not up to described first in the clutch moment of torque and the engine speed
Dynamic condition then returns to execution and judges whether to meet the hair according to the current clutch moment of torque of vehicle and current engine speed
The step of first entry condition of motivation.
Specifically, described device further include:
Third judging unit 900 judges that vehicle is current for not needing to start engine by after injection determining
Whether engine speed reaches the second entry condition of engine；
Third execution unit 1000 starts the hair if the engine speed reaches second entry condition
Motivation；
4th execution unit 1100 returns to execution if the engine speed is not up to second entry condition
The step of whether current engine speed of vehicle reaches the second entry condition of engine judged.
Specifically, as described in Figure 5, the clutch gear acquiring unit 400 includes:
Speed obtains module 401, for when receiving engine start request, obtaining the current vehicle speed of vehicle
4th judgment module 402 meets zero speed for judging whether according to the speed；
5th judgment module 403 is less than preset speed for judging whether according to the speed；
Distributive value determining module 404 calculates then according to current water tank water temperature, environmental pressure, fuel injection mode and determines electricity
At least one of machine, 12V starter motor and clutch starter starts the distributive value of the engine.
Specifically, as shown in fig. 6, first judging unit 500 includes:
6th judgment module 501, for judging whether the clutch gear reaches preset gear point；
5th execution module 502 does not need then to spray by delay for reaching the gear point in the clutch gear
Oil starting engine；
6th execution module 503 then needs to spray by delay for being not up to the gear point in the clutch gear
Oil starting engine.
Specifically, as shown in fig. 7, the second judgment unit 600 includes:
Target value determining module 601, for determining preset torque targets value, preset engine speed target value and pre-
If engine speed target difference；
Engine speed difference determining module 602, for calculating according to the revolving speed and the engine speed target value
Current engine speed difference；
7th judgment module 603 is greater than the torque targets value for judging whether according to the clutch moment of torque；
7th execution module 604, for being greater than the torque targets value or the engine in the clutch moment of torque
Rotating speed difference is greater than the engine speed target difference, then does not meet first entry condition；
8th judgment module 605 is greater than the engine speed for judging whether according to the engine speed difference
Target difference；
8th execution module 606, for being not more than the engine speed target difference in the engine speed difference,
Then meet first entry condition.
Specifically, as shown in figure 8, the third judging unit 900 includes:
9th judgment module 901 is greater than the engine speed target value for judging whether according to the revolving speed；
9th execution module 902 then meets described second for being greater than the engine speed target value in the revolving speed
Entry condition；
Tenth execution module 903 does not meet then described for being not more than the engine speed target value in the revolving speed
Second entry condition.
Specifically, it is obtaining before front clutch gear, is calculating the distributive value for starting the engine: receiving hair
When motivation starting request, the speed obtains the current vehicle speed that module 401 obtains vehicle；4th judgment module, 402 basis
The speed judges whether to meet zero speed, if the speed meets zero speed, the distributive value determining module 404 is according to working as
Preceding water tank water temperature, environmental pressure, fuel injection mode calculate the distributive value for determining engine described in electric motor starting；If the vehicle
Speed is unsatisfactory for zero speed, and the 5th judgment module 403 then judges whether to be less than preset speed according to the speed；If institute
Speed is stated less than the preset speed, the distributive value determining module 404 is according to current water tank water temperature, environmental pressure, spray
Oily mode calculates the distributive value for determining that 12V starter motor starts the engine；If the speed is not less than the preset vehicle
Speed, the distributive value determining module 404 calculate according to current water tank water temperature, environmental pressure, fuel injection mode and determine that clutch opens
Move the distributive value of the engine.
Specifically, when determining through clutch starting engine, the clutch gear acquiring unit 400 is obtained currently
Clutch gear；First judging unit 500 judges whether to need to start by after injection according to the clutch gear
Engine.
Further, the 6th judgment module 501 judges whether the clutch gear reaches preset gear point；Such as
Clutch gear described in fruit reaches the gear point, and the 5th execution module 502, which does not need to start by after injection, starts
Machine；If the clutch gear is not up to the gear point, the 6th execution module 503 needs to start by after injection
Engine.
Specifically, if necessary to start engine by after injection, the second judgment unit 600 is current according to vehicle
Clutch moment of torque and current engine speed judge whether the first entry condition for reaching the engine；If it is described from
Clutch torque and the engine speed meet first entry condition, and first execution unit 700 starts described start
Machine；If the clutch moment of torque and the engine speed are not up to first entry condition, second execution unit
800 return to execution judges whether to meet the engine according to the current clutch moment of torque of vehicle and current engine speed
The step of first entry condition.
Further, first entry condition includes: that the target value determining module 601 determines preset torque targets
Value, engine speed target value and engine speed target difference；The engine speed difference determining module 602 is according to described
Revolving speed and the engine speed target value, it is poor to calculate current engine speed；7th judgment module 603 is according to described
Clutch moment of torque judges whether to be greater than the torque targets value；If the clutch moment of torque is greater than the torque targets value, institute
It states the 7th execution module 604 and does not meet first entry condition；If the clutch moment of torque is not more than the torque targets
Value, the 8th judgment module 605 judge whether to be greater than the engine speed goal discrepancy according to the engine speed difference
Value；If the engine speed difference is greater than the engine speed target difference, the 7th execution module 604 does not meet
First entry condition；If the engine speed difference be not more than the engine speed target difference, the described 8th
Execution module 606 meets first entry condition.
Specifically, when not needing to start engine by after injection, the third judging unit 900 judges that vehicle is current
Engine speed whether reach the second entry condition of engine；If the engine speed reaches second trip bar
Part, the third execution unit 1000 start the engine；If the engine speed is not up to second trip bar
Part, the 4th execution unit 1100, which returns to execute, judges whether the current engine speed of vehicle reaches the second of engine and open
The step of dynamic condition.
Further, the 9th judgment module 901 judges whether to be greater than the engine speed mesh according to the revolving speed
Scale value；When the revolving speed is greater than the engine speed target value, the 9th execution module 902 meets second trip bar
Part；When the revolving speed is not more than the engine speed target value, the tenth execution module 903 does not meet described second then and opens
Dynamic condition.
The present embodiment two provides a kind of engine starting gear, introduces after injection, guarantees when clutch starting is started,
Flexibly determine engine injection time, avoids too early oil spout；Simultaneously using in the starting of 12V starter motor, clutch starting and ISG starting
Under three kinds of start-up modes, distributive value is controlled respectively, reduces cost.
Embodiment three
The present embodiment three provides a kind of engine start equipment, comprising: information collecting device, clutch controller, motor
Controller, 12V starting machine controller and engine controller；
The clutch controller, for determining that front clutch gear is worked as in acquisition when starting engine by clutch；
The clutch controller, for judging whether to need to start by after injection to send out according to the clutch gear
Motivation；
The clutch controller and the engine controller, for needing to start engine by after injection,
The first starting for reaching the engine is then judged whether according to the current clutch moment of torque of vehicle and current engine speed
Condition；
The clutch controller and the engine controller, for turning in the clutch moment of torque and the engine
Speed meets first entry condition, then starts the engine；
The clutch controller and the engine controller, for turning in the clutch moment of torque and the engine
Speed is not up to first entry condition, then returns to execution according to the current clutch moment of torque of vehicle and current engine speed
Judge whether the step of meeting the first entry condition of the engine
Further, the 12V starts controller, for according to current water tank water temperature, environmental pressure, fuel injection mode,
Calculate the distributive value for determining that 12V starter motor starts the engine.
Further, the electric machine controller, for calculating according to current water tank water temperature, environmental pressure, fuel injection mode
Determine the distributive value of engine described in electric motor starting.
Further, clutch controller, for calculating true according to current water tank water temperature, environmental pressure, fuel injection mode
Determine the distributive value that clutch starts the engine.
Specifically, the engine start equipment assembles above-mentioned engine starting gear, and is opened using above-mentioned engine
Dynamic method carries out starting the engine.
The present embodiment three provides a kind of engine start equipment, introduces after injection, guarantees when clutch starting is started,
Flexibly determine engine injection time, avoids too early oil spout；Simultaneously using in the starting of 12V starter motor, clutch starting and ISG starting
Under three kinds of start-up modes, distributive value is controlled respectively, reduces cost.
It should be noted that for the various method embodiments described above, describing for simplicity, it is all expressed as to two series
Combination of actions, but those skilled in the art should understand that, the present invention is not limited by the sequence of acts described, because according to
According to the present invention, certain steps can use other sequences or carry out simultaneously.Similarly, in above-mentioned engine start control device
Each module refer to computer program or program segment, for executing certain one or more specific function, in addition, above-mentioned each mould
It must be separated that the differentiation of block, which does not represent actual program code, yet.In addition, also any group can be carried out to above-described embodiment
It closes, obtains other embodiments.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the part being described in detail in certain each embodiment,
It may refer to the associated description of other embodiments.Those skilled in the art will also be appreciated that the embodiment of the present invention is listed various
Illustrative components, blocks, unit and step can by electronic hardware, computer software, or both combination realized.It is clear
Show the replaceability of hardware and software, above-mentioned various illustrative components, unit and step universally describe them
Function.Such function is to realize that depending on specific application and the design of whole system wants by hardware or software
It asks.Those skilled in the art can be used various methods and realize the function, but is this for every kind of specific application
It realizes and is understood not to the range beyond protection of the embodiment of the present invention.
Above description sufficiently discloses a specific embodiment of the invention.It should be pointed out that being familiar with the field
Range of any change that technical staff does a specific embodiment of the invention all without departing from claims of the present invention.
Correspondingly, the scope of the claims of the invention is also not limited only to previous embodiment.
Claims (10)
1. a kind of engine startup method characterized by comprising
When determining through clutch starting engine, obtains and work as front clutch gear；
Judge whether to need to start engine by after injection according to the clutch gear；
If necessary to start engine by after injection, then turned according to the current clutch moment of torque of vehicle and current engine
Speed judges whether the first entry condition for reaching the engine；
If the clutch moment of torque and the engine speed meet first entry condition, start the engine；
If the clutch moment of torque and the engine speed are not up to first entry condition, execution is returned according to vehicle
Current clutch moment of torque and current engine speed judge whether the step for the first entry condition for meeting the engine
Suddenly.
2. a kind of engine startup method according to claim 1, which is characterized in that the method also includes:
If you do not need to starting engine by after injection, then judge whether the current engine speed of vehicle reaches engine
The second entry condition；
If the engine speed reaches second entry condition, start the engine；
If the engine speed is not up to second entry condition, returns to execution and judge that the current engine of vehicle turns
The step of whether speed reaches the second entry condition of engine.
3. a kind of engine startup method according to claim 1, which is characterized in that front clutch gear is worked as in the acquisition
Before, further includes:
Calculate the distributive value for starting the engine；
When receiving engine start request, the current vehicle speed of vehicle is obtained；
Judged whether to meet zero speed according to the speed；
If the speed meets zero speed, according to current water tank water temperature, environmental pressure, fuel injection mode, calculates and determine electricity
Machine starts the distributive value of the engine.
4. a kind of engine startup method according to claim 3, which is characterized in that described to be according to speed judgement
Zero speed of no satisfaction further include:
If the speed is unsatisfactory for zero speed, judged whether to be less than preset speed according to the speed；
If the speed is less than the preset speed, according to current water tank water temperature, environmental pressure, fuel injection mode, meter
Calculate the distributive value for determining that 12V starter motor starts the engine.
If the speed is not less than the preset speed, according to current water tank water temperature, environmental pressure, fuel injection mode,
Calculate the distributive value for determining that clutch starts the engine.
5. a kind of engine startup method according to claim 1, which is characterized in that the clutch gear judges whether
It needs to start engine by after injection and includes:
Judge whether the clutch gear reaches preset gear point；
If the clutch gear reaches the gear point, do not need to start engine by after injection；
If the clutch gear is not up to the gear point, need to start engine by after injection.
6. a kind of engine startup method according to claim 1, which is characterized in that first entry condition includes:
Determine preset torque targets value, preset engine speed target value and preset engine speed target difference；
According to the revolving speed and the engine speed target value, current engine speed difference is calculated
Judged whether to be greater than the torque targets value according to the clutch moment of torque；
If the clutch moment of torque is greater than the torque targets value, first entry condition is not met.
7. a kind of engine startup method according to claim 1, which is characterized in that if the clutch moment of torque is little
In the torque targets value, then judged whether to be greater than the engine speed target difference according to the engine speed difference；
If the engine speed difference is greater than the engine speed target difference, first trip bar is not met
Part；
If the engine speed difference is not more than the engine speed target difference, meet first trip bar
Part.
8. a kind of engine startup method according to claim 2, which is characterized in that second entry condition includes:
Determine preset engine speed target value；
Judged whether to be greater than the engine speed target value according to the revolving speed；
If the revolving speed is greater than the engine speed target value, meet second entry condition；
If the revolving speed is not more than the engine speed target value, second entry condition is not met.
9. a kind of engine starting gear characterized by comprising
Clutch gear acquiring unit, for determining that front clutch gear is worked as in acquisition when starting engine by clutch；
First judging unit, for judging whether to need to start engine by after injection according to the clutch gear；
Second judgment unit, for needing to start engine, the then clutch moment of torque current according to vehicle by after injection
Judge whether the first entry condition for reaching the engine with current engine speed；
First execution unit, for meeting first entry condition in the clutch moment of torque and the engine speed, then
Start the engine；
Second execution unit, for being not up to first entry condition in the clutch moment of torque and the engine speed,
Execution is then returned to judge whether to meet the engine according to the current clutch moment of torque of vehicle and current engine speed
The step of first entry condition.
10. a kind of engine start equipment characterized by comprising information collecting device, clutch controller, motor control
Device, 12V starting machine controller and engine controller；
The clutch controller, for determining that front clutch gear is worked as in acquisition when starting engine by clutch；
The clutch controller, for judging whether to need to start by after injection to start according to the clutch gear
Machine；
The clutch controller and the engine controller, for needing to start engine, then root by after injection
Judge whether the first entry condition for reaching the engine according to the current clutch moment of torque of vehicle and current engine speed；
The clutch controller and the engine controller, for full in the clutch moment of torque and the engine speed
Foot first entry condition, then start the engine；
The clutch controller and the engine controller, for the clutch moment of torque and the engine speed not
Reach first entry condition, then returns and execute according to the current clutch moment of torque of vehicle and current engine speed judgement
The step of whether meeting the first entry condition of the engine.
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| CN201910312908.9A CN110103944B (en) | 2019-04-18 | 2019-04-18 | Engine starting method, device and equipment |
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|---|---|---|---|
| CN201910312908.9A CN110103944B (en) | 2019-04-18 | 2019-04-18 | Engine starting method, device and equipment |
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| CN112606815A (en) * | 2020-12-07 | 2021-04-06 | 浙江吉利控股集团有限公司 | Method and device for determining motor reserve torque of hybrid vehicle and vehicle |
| CN112677953A (en) * | 2021-01-07 | 2021-04-20 | 浙江吉利控股集团有限公司 | Starting method and device of engine in dual-motor hybrid power system and vehicle |
| CN112677954A (en) * | 2021-01-07 | 2021-04-20 | 浙江吉利控股集团有限公司 | Starting method and device of engine in dual-motor hybrid power system and vehicle |
| CN112721905A (en) * | 2021-01-07 | 2021-04-30 | 浙江吉利控股集团有限公司 | Starting method and device of engine in dual-motor hybrid power system and vehicle |
| CN113715823A (en) * | 2021-09-26 | 2021-11-30 | 一汽解放汽车有限公司 | Engine starting control method for light-mixed commercial vehicle |
| CN113997936A (en) * | 2021-12-09 | 2022-02-01 | 蜂巢传动科技河北有限公司 | Control method and device of hybrid vehicle, storage medium and vehicle |
| CN116729354A (en) * | 2023-05-25 | 2023-09-12 | 长城汽车股份有限公司 | Vehicle starting method and device, storage medium and electronic equipment |
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| CN116729354A (en) * | 2023-05-25 | 2023-09-12 | 长城汽车股份有限公司 | Vehicle starting method and device, storage medium and electronic equipment |
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