CN108372853A - The mixed dynamic vehicle start control method of one kind and system - Google Patents
The mixed dynamic vehicle start control method of one kind and system Download PDFInfo
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- CN108372853A CN108372853A CN201810162979.0A CN201810162979A CN108372853A CN 108372853 A CN108372853 A CN 108372853A CN 201810162979 A CN201810162979 A CN 201810162979A CN 108372853 A CN108372853 A CN 108372853A
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- rotating speed
- request
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- starting
- speeds
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Classifications
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- 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
- 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
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- 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
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
-
- 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, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
- B60W30/182—Selecting between different operative modes, e.g. comfort and performance modes
Abstract
The invention discloses the mixed dynamic vehicle start control methods of one kind and system, this method to include：A variety of starting modes are preset, there is each starting mode the request range of speeds of each self application and accelerator open degree to ask rotating speed correspondence；It obtains current power source and exports rotating speed；The request range of speeds that rotating speed and each starting mode are applicable in, which is exported, according to power source determines current starting mode；Rotating speed correspondence is asked to determine request rotating speed according to current starting mode, current throttle aperture and accelerator open degree.It can be provided using the present invention and be more in line with the desired torque of driver.
Description
Technical field
The present invention relates to field of automobile, more particularly to a kind of mixed dynamic vehicle start control method and system.
Background technology
Mixed motor-car is the emerging direction of automobile industry at present.It is so-called mixed dynamic, refer to vehicle interior there are two power sources,
I.e. traditional internal combustion engine and motor.Start request rotating speed is the speed demand proposed to power source in starting stage, gearbox, is become
Fast case input speed can be constantly close to the request rotating speed.Under different accelerator open degrees, the expectation of driver accelerates to be intended to
It differs, therefore, the expectation torque of gearbox also differs.
Since there are two power sources for mixed motor-car：Engine and motor, the two power sources can work independently, also may be used
With associated working.Mixing the state of the power source of motor-car as a result, can be divided into traditional (only engine work), pure electricity (only motor
Work) and mixed dynamic (engine and motor work at the same time) Three models.Since the external characteristics of engine and the external characteristics of motor are complete
Complete different, the peak torque output range of speeds of engine is 2400rpm~3800rpm, and the peak torque of motor exports rotating speed
Ranging from 1200rpm~1600rpm starts to walk when with traditional mode, if request rotating speed is too low, engine can not release satisfaction
The torque of demand is started to walk when with pure power mode, if request rotating speed is excessively high, motor output torque is insufficient, this can influence to drive
The driving experience of member.
Invention content
The present invention provides the mixed dynamic vehicle start control method of one kind and systems, solve the starting control process of the prior art
The problem of actual demand cannot be met.
The present invention provides the mixed dynamic vehicle start control methods of one kind, including：
A variety of starting modes are preset, each starting mode has the request range of speeds and throttle of each self application
Aperture-request rotating speed correspondence；
It obtains current power source and exports rotating speed；
The request range of speeds that rotating speed and each starting mode are applicable in, which is exported, according to power source determines current starting mode；
Request rotating speed is determined according to current starting mode, current throttle aperture and accelerator open degree-request rotating speed correspondence.
Preferably, the starting mode includes：
Pure power mode, traditional mode and mixed dynamic model formula；
The request range of speeds of the pure power mode is 0 to 1800rpm；
The request range of speeds of the traditional mode is 1700 to 2800rpm；
The request range of speeds of the mixed dynamic model formula is 1700 to 2800rpm.
Preferably, in mixed motor-car start-up course, the method further includes：
Monitor clutch oil temperature；
Pressure compensation is carried out to clutch pressure according to the mild oil temperature of clutch oil-pressure compensation relationship.
Preferably, when clutch oil temperature is more than setting oil temperature, the method further includes：
By pressure compensation so that clutch separation.
Preferably, after determining request rotating speed, the method further includes：
Adjustment of rotational speed step-length is determined according to the difference of request rotating speed and actual speed；
Request rotating speed is altered in steps according to adjustment of rotational speed period and adjustment of rotational speed step-length.
Preferably, the difference according to request rotating speed and actual speed determines that adjustment of rotational speed step-length includes：
Difference and driving experience scale based on request rotating speed and actual speed determine adjustment of rotational speed step-length；
The influence for exporting rotating speed to power source according to temperature is adjusted the adjustment of rotational speed step-length of calibration.
Correspondingly, the present invention also provides a kind of mixed motor-car starting control systems, including：
The output shaft of engine, motor, first clutch, second clutch and gearbox, the engine passes through first
Clutch is connected with one end of motor shaft, and the other end of motor shaft is connected by second clutch with the gearbox；
Engine output rotating speed is sent to gear box control unit by control unit of engine；
Motor output speeds are exported rotating speed by motor control unit, is sent to gear box control unit；
The applicable request of preset a variety of starting modes, each starting mode is stored in gear box control unit to turn
Fast range and accelerator open degree-request rotating speed correspondence export rotating speed according to power source and each rise in starting-up process
The applicable request range of speeds of step mode determines current starting mode；Then according to current starting mode, current throttle aperture and
Accelerator open degree-request rotating speed correspondence determines request rotating speed.
Preferably, the system also includes：The temperature sensor being connected with the gear box control unit, for monitor from
The oil temperature of clutch oil outlet, and it is sent to the gear box control unit；
The gear box control unit is also stored with oil temperature-pressure compensation correspondence, the gear box control unit tool
Body is used to carry out pressure compensation to clutch pressure according to the oil temperature of reception.
Preferably, the gear box control unit is also stored with speed discrepancy-engine water temperature-adjusting step correspondence,
The gear box control unit be specifically used for determine ask rotating speed after, present engine water temperature poor according to current rotating speed and
Speed discrepancy-engine water temperature-adjusting step correspondence determines adjustment of rotational speed step-length, and is altered in steps according to adjustment of rotational speed step-length
Ask step-length.
Preferably, the starting mode includes：
Pure power mode, traditional mode and mixed dynamic model formula；
The request range of speeds of the pure power mode is 0 to 1800rpm；
The request range of speeds of the traditional mode is 1700 to 2800rpm；
The request range of speeds of the mixed dynamic model formula is 1700 to 2800rpm.
A kind of mixed dynamic vehicle start control method and system provided by the invention, including：A variety of starting modes are preset,
Each starting mode has the request range of speeds and accelerator open degree-request rotating speed correspondence of each self application；It obtains current
Power source exports rotating speed；The request range of speeds that rotating speed and each starting mode are applicable in, which is exported, according to power source determines current starting
Pattern；Request rotating speed is determined according to current starting mode, current throttle aperture and accelerator open degree-request rotating speed correspondence.By
The applicable starting mode of current rotating speed is determined first in the present invention, can allow power source when starting defeated in guarantee in this way
It operates under the premise of going out torque, is then worked as according to the correspondence determination between accelerator open degree under current starting mode and request rotating speed
Preceding request rotating speed can lead to torque and the driver's phase of output to avoid engine or motor in the work of inappropriate rotating speed section
Not the case where torque of prestige is not inconsistent.
Further, mixed dynamic vehicle start control method and system provided in an embodiment of the present invention, can also further supervise
Clutch oil temperature is surveyed, pressure benefit can be carried out to clutch pressure according to the mild oil temperature of clutch oil-pressure compensation relationship in this way
Repay, avoid causing to export rotating speed saltus step due to power source switching, cause clutch sliding wear extremely and cause the abrasion of clutch hardware and
Service life reduction.
Further, mixed dynamic vehicle start control method and system provided in an embodiment of the present invention, rotating speed is asked determining
Later, the method further includes：Adjustment of rotational speed step-length is determined according to the difference of request rotating speed and actual speed；According to adjustment of rotational speed
Request rotating speed is altered in steps in period and adjustment of rotational speed step-length.Such as when pure power mode is started to walk, driver steps on the gas excessive, motor
Torque cannot be satisfied demand, then carries out power supply using mixed flowing mode.At this time, it may occur that request rotating speed saltus step is susceptible to
Due to engine abnormal noise caused by request rotating speed saltus step.And method provided by the invention can effectively prevent above-mentioned phenomenon to generate.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only one described in the present invention
A little embodiments, for those of ordinary skill in the art, other drawings may also be obtained based on these drawings.
Fig. 1 is the first flow chart according to mixed dynamic vehicle start control method provided in an embodiment of the present invention；
Fig. 2 is second of flow chart according to mixed dynamic vehicle start control method provided in an embodiment of the present invention；
Fig. 3 is the third flow chart according to mixed dynamic vehicle start control method provided in an embodiment of the present invention；
Fig. 4 is a kind of flow chart according to determining adjustment of rotational speed step-length provided in an embodiment of the present invention；
Fig. 5 is the first structural schematic diagram according to mixed motor-car starting control system provided in an embodiment of the present invention；
Fig. 6 is second of structural schematic diagram according to mixed motor-car starting control system provided in an embodiment of the present invention.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar parameter or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not construed as limiting the claims.
A kind of mixed dynamic vehicle start control method and system provided by the invention, in the starting-up process for solving the prior art,
It is likely to occur vehicle output torque and it is expected the problem of torque is not inconsistent with driver, to promote driver's driving experience degree.
Technical solution in order to better understand the present invention and technique effect, below with reference to flow diagram to specific
Embodiment is described in detail.As shown in Figure 1, for according to mixed dynamic vehicle start control method provided in an embodiment of the present invention
The first flow chart, this method may comprise steps of：
Step S01 presets a variety of starting modes, each starting mode have each self application the request range of speeds,
And accelerator open degree-request rotating speed correspondence.
In the present embodiment, the request that starting mode and various starting modes are applicable in can be empirically or experimentally determined
The range of speeds may then pass through the modes such as calibration and determine accelerator open degree-request rotating speed correspondence.
In a specific embodiment, the starting mode includes：Pure power mode, traditional mode and mixed dynamic model formula；It is described
The request range of speeds of pure power mode is 0 to 1800rpm；The request range of speeds of the traditional mode is 1700 to 2800rpm；
The request range of speeds of the mixed dynamic model formula is 1700 to 2800rpm.The basis of design of above-mentioned request rotating speed is：Work as motor speed
When more than 1800rpm, the peak torque output range of speeds of motor is had exceeded, motor output torque can be caused it is expected with driver
Not the case where torque is not inconsistent, and the peak torque of engine exports the range of speeds in 2400rpm~3800rpm, passes through switching
Starting mode can improve the above problem.Wherein, 0 to 1800rpm and 1700 to there are overlapping regions to make between 2800rpm
It is more steady to obtain pattern switching.
Step S02 obtains current power source and exports rotating speed.
In the present embodiment, the rotating speed of power source output shaft can be obtained by speed probe etc..Wherein, revolution speed sensing
Device can be connected with control unit of engine, can also be to be connected with other control units, by CAN bus by rotary speed information
It is sent to each controller etc. for needing rotary speed information, is not limited herein.That is the speed probe can be vehicle original
Have, can also be the speed probe newly increased, do not limit herein.It is preferred that it is defeated to obtain current power source using CAN bus
Go out rotating speed.
Step S03 exports the request range of speeds that rotating speed and each starting mode are applicable according to power source and determines current rise
Step mode.
Specifically, power source output rotating speed is in the rotating speed segment of which starting mode, then uses which starting mould
Formula then starts to start starting mode conversion if current power source output rotating speed is in overlapping section, such as 1700rpm.
Step S04 is determined according to current starting mode, current throttle aperture and accelerator open degree-request rotating speed correspondence
Ask rotating speed.
In a specific embodiment, request rotating speed can be determined by tabling look-up.
It is accelerator open degree-request rotating speed table of comparisons under pure power mode as shown in table 1.
Accelerator open degree-request rotating speed table of comparisons under 1 pure power mode of table
It is as shown in table 2 accelerator open degree-request rotating speed table of comparisons under traditional mode.
Accelerator open degree-request rotating speed table of comparisons under 2 traditional mode of table
It is as shown in table 3 accelerator open degree-request rotating speed table of comparisons under traditional mode.
Table 3 mixes accelerator open degree under dynamic model formula-request rotating speed table of comparisons
In the present embodiment, accelerator open degree-request rotating speed correspondence can be by scheme and/table in the form of stored,
The corresponding request rotating speed of current throttle aperture is determined Cha Tu and/or by way of tabling look-up when in use.Due to different starting moulds
Formula corresponds to different accelerator open degrees-request rotating speed correspondence, and the request rotating speed obtained can be made to be more in line with driver's
Actual demand.
Mixed dynamic vehicle start control method provided by the invention, due to determining the applicable starting mode of current rotating speed first,
Power source when starting can be allow to be operated under the premise of ensureing output torque in this way, then according to current starting mode
Correspondence between lower accelerator open degree and request rotating speed determines current request rotating speed, can be to avoid engine or motor improper
The work of rotating speed section lead to torque the case where not being inconsistent with the desired torque of driver of output.
As shown in Fig. 2, for according to second of flow chart of mixed dynamic vehicle start control method provided in an embodiment of the present invention.
In the present embodiment, in mixed motor-car start-up course, the method further includes：
Step S21 monitors clutch oil temperature.
Step S22 carries out pressure compensation according to the mild oil temperature of clutch oil-pressure compensation relationship to clutch pressure.
In the present embodiment, which plays the role of the temperature protection that starts to walk, and heat derives from the synchronous phase of starting in starting,
Sliding wear is bigger, and the duration is longer, then heat is more, easy tos produce abrasion and the service life reduction of the hardware such as clutch, passes through prison
The temperature for surveying clutch oil outlet is controlled into trip temperature, is based on different temperatures, is carried out the rate control of clutch pressurisation.Temperature mistake
Gao Shi, such as set oil temperature as 130 DEG C, then it abandons starting to walk, direct holdback clutch.Specifically, pressure can be obtained by tabling look-up
Force compensating value, in addition, when oil temperature changes, clutch goal pressure can change, and can be adjusted by pressure compensation
It is whole.As shown in table 4, it is oil temperature-pressure compensation table.
4 oil temperatures of table-pressure compensation table
Wherein, pressure+pressure compensation that clutch start request pressure=clutch requested torque is converted to.
Mixed dynamic vehicle start control method provided in an embodiment of the present invention, can monitor clutch oil temperature, in this way can root
Pressure compensation is carried out to clutch pressure according to the mild oil temperature of clutch oil-pressure compensation relationship, avoids leading due to power source switching
Output rotating speed saltus step is caused, causing clutch sliding wear extremely leads to the abrasion of clutch hardware and service life reduction.
As shown in figure 3, for according to the third flow chart of mixed dynamic vehicle start control method provided in an embodiment of the present invention.
In the present embodiment, after determining request rotating speed, the method further includes：
Step S31 determines adjustment of rotational speed step-length according to the difference of request rotating speed and actual speed.
In the present embodiment, in order to avoid rotating speed saltus step leads to engine abnormal noise, can by staged adjust rotating speed come
Adjustment of rotational speed is made requests on, in addition, in order to avoid the overlong time of adjustment process causes to generate lagging feeling, is needed by a large amount of real
It tests to determine adjustment of rotational speed step-length.Preferably, speed discrepancy is bigger, can be arranged bigger adjustment of rotational speed step-length, but the rotating speed
Adjusting step excessive cannot lead to rotating speed step.
Request rotating speed is altered in steps according to adjustment of rotational speed period and adjustment of rotational speed step-length in step S32.
Mixed dynamic vehicle start control method provided in an embodiment of the present invention, it is possible to prevente effectively from starting caused by rotating speed step
Abnormal sound inside machine, and torque will not be caused to lag.
As shown in figure 4, for according to a kind of flow chart of determining adjustment of rotational speed step-length provided in an embodiment of the present invention.
In the present embodiment, the difference according to request rotating speed and actual speed determines that adjustment of rotational speed step-length includes：
Step S41, difference and driving experience scale based on request rotating speed and actual speed determine adjustment of rotational speed step-length.
Step S42, the influence for exporting rotating speed to power source according to temperature are adjusted the adjustment of rotational speed step-length of calibration.
In a specific embodiment, since there are dynamic mode switching controls, such as pure power mode to start to walk in starting-up process
When, driver steps on the gas excessive, and Motor torque cannot be satisfied demand, then carries out power supply using mixing flowing mode.At this point, starting
Request rotating speed, for example, pure power mode request rotating speed is 1600rpm, can mix dynamic model formula and be situated between because dynamic mode difference changes
It is 2500rpm that rotating speed is asked after entering, and can carry out rotation speed change control in TCU, prevent the hair generated by request rotating speed step
Motivation abnormal sound.
Each period is limited, if the request relative speed variation of 10ms is limited to 50rpm up and down, based on request speed discrepancy and is started
Machine water temperature determines the calculating of adjustment of rotational speed step-length, to obtain new request rotating speed.As shown in table 5, it is speed discrepancy-engine water
Temperature-adjustment of rotational speed step-length the table of comparisons.
5 speed discrepancies of the table-engine water temperature-adjustment of rotational speed step-length table of comparisons
| -20 | 10 | 40 | 80 | 120 | |
| -1000 | -20 | -20 | -20 | -35 | -50 |
| -500 | -15 | -15 | -15 | -25 | -45 |
| -200 | -10 | -10 | -10 | -20 | -40 |
| 0 | 0 | 0 | 0 | 0 | 0 |
| 200 | 10 | 10 | 10 | 20 | 40 |
| 500 | 15 | 15 | 15 | 25 | 45 |
| -1000 | 20 | 20 | 20 | 35 | 50 |
Wherein, the longitudinal axis is speed discrepancy, and horizontal axis is engine water temperature.
Determining adjustment of rotational speed step-length provided in an embodiment of the present invention can obtain and meet the desired adjustment of rotational speed step of driver
It is long, and life of clutch can be extended.
Correspondingly, the present invention also provides mixed motor-car starting control systems corresponding with the above method, as shown in figure 5,
For according to the first structural schematic diagram of mixed motor-car starting control system provided in an embodiment of the present invention, which can wrap
It includes：
Engine, motor, first clutch C0, second clutch C1 and gearbox, the output shaft of the engine pass through
First clutch C0 is connected with one end of motor shaft, and the other end of motor shaft passes through second clutch C1 and the gearbox phase
Even.
Wherein, engine output rotating speed is sent to gear box control unit by control unit of engine.Motor control unit
Rotating speed is exported using motor output speeds as power source, is sent to gear box control unit.It is stored in gear box control unit
The applicable request range of speeds of preset a variety of starting modes, each starting mode and accelerator open degree-request rotating speed pair
It should be related to, in starting-up process, the request range of speeds determination that rotating speed and each starting mode are applicable in be exported according to power source and is worked as
Preceding starting mode；Then it is asked according to current starting mode, current throttle aperture and accelerator open degree-request rotating speed correspondence determination
Seek rotating speed.
Preferably, the gear box control unit is also stored with speed discrepancy-engine water temperature-adjusting step correspondence,
The gear box control unit be specifically used for determine ask rotating speed after, present engine water temperature poor according to current rotating speed and
Speed discrepancy-engine water temperature-adjusting step correspondence determines adjustment of rotational speed step-length, and is altered in steps according to adjustment of rotational speed step-length
Ask step-length.
In a specific embodiment, in mixed dynamic Vehicle Starting Process, there are following several working conditions for power source：
1. pure power mode, only motor work, first clutch C0 is opened at this time, and second clutch C1 is combined.
2. traditional mode, only engine work, first clutch C0 and second clutch C1 are combined at this time, but motor is not
Output torque.
3. mixed dynamic model formula.Motor and simultaneous firing, at this time first clutch C0 and second clutch C1 all combine,
Engine and motor while output torque.
In a specific embodiment, the starting mode may include：Pure power mode, traditional mode and mixed dynamic model formula.
Preferably, the request range of speeds of the pure power mode is 0 to 1800rpm.
The request range of speeds of the traditional mode is 1700 to 2800rpm.
The request range of speeds of the mixed dynamic model formula is 1700 to 2800rpm.
Mixed motor-car starting control system provided by the invention can effectively solve the torsion that power source provides in starting-up process
Square is unsatisfactory for the problem of operator demand.
As shown in fig. 6, to be shown according to second of structure of mixed motor-car starting control system provided in an embodiment of the present invention
It is intended to, which can also include：
The temperature sensor being connected with the gear box control unit, the oil temperature for monitoring clutch oil outlet, concurrently
Give the gear box control unit.
Wherein, the gear box control unit is also stored with oil temperature-pressure compensation correspondence, and the gearbox control is single
Member is specifically used for carrying out pressure compensation to clutch pressure according to the oil temperature of reception.
Mixed motor-car starting control system provided in an embodiment of the present invention can also use temperature sensor monitors clutch
Oil temperature, so can according to the mild oil temperature of clutch oil-pressure compensation relationship to clutch pressure carry out pressure compensation, promoted from
The service life of clutch.
In the instructions provided here, numerous specific details are set forth.It is to be appreciated, however, that the implementation of the present invention
Example can be put into practice without these specific details.In some instances, well known method, structure is not been shown in detail
And technology, so as not to obscure the understanding of this description.
Similarly, it should be understood that in order to simplify the disclosure and help to understand one or more of each inventive aspect,
Above in the description of exemplary embodiment of the present invention, each feature of the invention is grouped together into single implementation sometimes
In example, figure or descriptions thereof.However, the method for the disclosure should be construed to reflect following intention：It is i.e. required to protect
Shield the present invention claims the more features of feature than being expressly recited in each claim.
Those skilled in the art, which are appreciated that, to carry out adaptively the module in the device in embodiment
Change and they are arranged in the one or more equipment different from the embodiment.It can be the module or list in embodiment
Member or component be combined into a module or unit or component, and can be divided into addition multiple submodule or subelement or
Sub-component.Other than such feature and/or at least some of process or unit exclude each other, it may be used any
Combination is disclosed to all features disclosed in this specification (including adjoint claim, abstract and attached drawing) and so to appoint
Where all processes or unit of method or equipment are combined.Unless expressly stated otherwise, this specification (including adjoint power
Profit requires, abstract and attached drawing) disclosed in each feature can be by providing the alternative features of identical, equivalent or similar purpose come generation
It replaces.
It should be noted that above-described embodiment is that the present invention will be described rather than limits the invention, and
Those skilled in the art can design alternative embodiment without departing from the scope of the appended claims.In claim
In, any reference mark between bracket should not be configured to limitations on claims.Word "comprising" is not excluded for depositing
In elements or steps etc. not listed in the claims.Word "a" or "an" before element does not exclude the presence of more
A such element.The present invention can be by means of including the hardware of several different elements and by means of properly programmed calculating
Machine is realized.If in the unit claim for listing dry systems, several in these systems can be by same
Hardware branch embodies.The use of word first, second and third etc. does not indicate that any sequence.These words can be explained
For title.
Claims (10)
1. the mixed dynamic vehicle start control method of one kind, which is characterized in that including：
A variety of starting modes are preset, each starting mode has the request range of speeds and accelerator open degree-of each self application
Ask rotating speed correspondence；
It obtains current power source and exports rotating speed；
The request range of speeds that rotating speed and each starting mode are applicable in, which is exported, according to power source determines current starting mode；
Request rotating speed is determined according to current starting mode, current throttle aperture and accelerator open degree-request rotating speed correspondence.
2. according to the method described in claim 1, it is characterized in that, the starting mode includes：
Pure power mode, traditional mode and mixed dynamic model formula；
The request range of speeds of the pure power mode is 0 to 1800rpm；
The request range of speeds of the traditional mode is 1700 to 2800rpm；
The request range of speeds of the mixed dynamic model formula is 1700 to 2800rpm.
3. according to the method described in claim 1, it is characterized in that, in mixed motor-car start-up course, the method further includes：
Monitor clutch oil temperature；
Pressure compensation is carried out to clutch pressure according to the mild oil temperature of clutch oil-pressure compensation relationship.
4. according to the method described in claim 3, it is characterized in that, clutch oil temperature be more than setting oil temperature when, the method
Further include：
By pressure compensation so that clutch separation.
5. according to the method described in claim 1, it is characterized in that, after determining request rotating speed, the method further includes：
Adjustment of rotational speed step-length is determined according to the difference of request rotating speed and actual speed；
Request rotating speed is altered in steps according to adjustment of rotational speed period and adjustment of rotational speed step-length.
6. according to the method described in claim 5, it is characterized in that, described determine according to the difference of request rotating speed and actual speed
Adjustment of rotational speed step-length includes：
Difference and driving experience scale based on request rotating speed and actual speed determine adjustment of rotational speed step-length；
The influence for exporting rotating speed to power source according to temperature is adjusted the adjustment of rotational speed step-length of calibration.
7. a kind of mixed motor-car starting control system, which is characterized in that including：
The output shaft of engine, motor, first clutch, second clutch and gearbox, the engine passes through the first clutch
Device is connected with one end of motor shaft, and the other end of motor shaft is connected by second clutch with the gearbox；
Engine output rotating speed is sent to gear box control unit by control unit of engine；
Motor output speeds are exported rotating speed by motor control unit, is sent to gear box control unit；
The applicable request rotating speed model of preset a variety of starting modes, each starting mode is stored in gear box control unit
It encloses and accelerator open degree-request rotating speed correspondence exports rotating speed and each starting mould in starting-up process according to power source
The applicable request range of speeds of formula determines current starting mode；Then according to current starting mode, current throttle aperture and throttle
Aperture-request rotating speed correspondence determines request rotating speed.
8. system according to claim 7, which is characterized in that the system also includes：With the gear box control unit
Connected temperature sensor, the oil temperature for monitoring clutch oil outlet, and it is sent to the gear box control unit；
The gear box control unit is also stored with oil temperature-pressure compensation correspondence, and the gear box control unit is specifically used
In carrying out pressure compensation to clutch pressure according to the oil temperature of reception.
9. system according to claim 7, which is characterized in that the gear box control unit is also stored with speed discrepancy-hair
Motivation water temperature-adjusting step correspondence, the gear box control unit is specifically used for after determining and asking rotating speed, according to working as
Preceding speed discrepancy, present engine water temperature and speed discrepancy-engine water temperature-adjusting step correspondence determine adjustment of rotational speed step-length,
And request step-length is altered in steps according to adjustment of rotational speed step-length.
10. system according to claim 7, which is characterized in that the starting mode includes：
Pure power mode, traditional mode and mixed dynamic model formula；
The request range of speeds of the pure power mode is 0 to 1800rpm；
The request range of speeds of the traditional mode is 1700 to 2800rpm；
The request range of speeds of the mixed dynamic model formula is 1700 to 2800rpm.
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| WO2023221635A1 (en) * | 2022-05-17 | 2023-11-23 | 上汽通用五菱汽车股份有限公司 | Control method and apparatus for starting vehicle, and computer device and readable storage medium |
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