CN108189831A - Prevent vehicle from generating the method and system of impact - Google Patents
Prevent vehicle from generating the method and system of impact Download PDFInfo
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- CN108189831A CN108189831A CN201711499553.6A CN201711499553A CN108189831A CN 108189831 A CN108189831 A CN 108189831A CN 201711499553 A CN201711499553 A CN 201711499553A CN 108189831 A CN108189831 A CN 108189831A
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- Prior art keywords
- control unit
- throttle
- engine
- signal
- engine ecu
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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
- B60W10/10—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
- 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
- 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
- B60W30/188—Controlling power parameters of the driveline, e.g. determining the required power
-
- 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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/08—Electric propulsion units
- B60W2510/081—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
- B60W2710/0666—Engine torque
Abstract
The present invention provides the method and systems for preventing vehicle from generating impact, and applied to automatic transmission, automatic transmission includes control unit of engine ECU and gear box control unit TCU, method include：When vehicle accelerator is operated, control unit of engine ECU obtains throttle and steps on signal, and throttle is stepped on signal and is sent to gear box control unit TCU；Gear box control unit TCU steps on signal according to throttle and drop torsion request is sent to control unit of engine ECU；Control unit of engine ECU turns round request control engine according to drop reduces torque.The present invention works as vehicle in no throttle to having under the operating mode of throttle, by reducing the torque of engine at this time, so as to alleviate generated impact of stepping on the gas suddenly, improves driver comfort.
Description
Technical field
The present invention relates to technical field of vehicle control, more particularly, to a kind of method for preventing vehicle from generating impact and are
System.
Background technology
Vehicle is less than transmission input shaft rotating speed, steps on the gas when suddenly in situation downward driving of not stepping on the gas, engine speed,
Engine speed can rise at this time, and torque increases, and when engine speed is equal to transmission input shaft rotating speed, vehicle generates
Impact.
Current vehicle is directed to the solution of problems not yet, can not avoid what is generated when stepping on the gas suddenly from rushing
It hits, so as to influence the driver comfort of vehicle.
Invention content
In view of this, it is existing to solve the purpose of the present invention is to provide the method and system for preventing vehicle from generating impact
Vehicle can not avoid the impact generated when stepping on the gas suddenly, the problem of so as to influence the driver comfort of vehicle.
In a first aspect, an embodiment of the present invention provides a kind of method for preventing vehicle from generating impact, applied to fluid drive
Device, the automatic transmission include control unit of engine ECU and gear box control unit TCU, the method includes：
When vehicle accelerator is operated, the control unit of engine ECU obtains throttle and steps on signal, and by the throttle
It steps on signal and is sent to the gear box control unit TCU；
The gear box control unit TCU steps on signal according to the throttle and drop torsion request is sent to the engine control
Unit ECU processed；
The control unit of engine ECU turns round request according to the drop and the engine is controlled to reduce torque.
With reference to first aspect, an embodiment of the present invention provides the first possible embodiment of first aspect, wherein, institute
It states when vehicle accelerator is operated, the control unit of engine ECU obtains throttle and steps on signal, and the throttle is stepped on letter
Number gear box control unit TCU is sent to, including：
When vehicle accelerator is operated, the control unit of engine ECU obtains accelerator pedal signal, and according to the oil
Door pedal signal obtains the throttle and steps on signal；
The throttle is stepped on signal and is sent to the gear box control unit TCU by the control unit of engine ECU.
With reference to first aspect, an embodiment of the present invention provides second of possible embodiment of first aspect, wherein, institute
State control unit of engine ECU controls the engine to reduce torque according to the drop square request, including：
The control unit of engine ECU turns round request according to the drop and the engine is controlled to reduce oil mass；
Alternatively,
The control unit of engine ECU turns round request according to the drop and the engine is controlled to reduce tolerance；
Alternatively,
The control unit of engine ECU turns round request according to the drop and the engine is controlled to reduce ignition advance angle.
With reference to first aspect, an embodiment of the present invention provides the third possible embodiment of first aspect, wherein, institute
It states control unit of engine ECU the throttle is stepped on into signal and be sent to the gear box control unit TCU, including：
The throttle is stepped on signal by vehicle-mounted control network and is sent to the speed change by the control unit of engine ECU
Case control unit TCU.
With reference to first aspect, an embodiment of the present invention provides the 4th kind of possible embodiment of first aspect, wherein, institute
The method of stating further includes：
The gear box control unit TCU obtains engine speed and transmission input shaft rotating speed, and starts described
Machine rotating speed is compared with the transmission input shaft rotating speed；
When the engine speed is more than the gearbox input speed, the gear box control unit TCU stops will
The drop turns round request and is sent to the control unit of engine ECU.
The 4th kind of possible embodiment with reference to first aspect, an embodiment of the present invention provides the 5th kind of first aspect
Possible embodiment, wherein, the gear box control unit TCU obtains engine speed, including：
The control unit of engine ECU obtains the motor speed, and the motor speed is sent to described
Gear box control unit TCU；
The gear box control unit TCU receives the motor speed that the control unit of engine ECU is sent.
Second aspect, the embodiment of the present invention also provides a kind of system for preventing vehicle from generating impact, applied to fluid drive
Device, the automatic transmission include control unit of engine ECU and gear box control unit TCU, the system comprises：
Throttle signal acquisition module, for when vehicle accelerator is operated, the control unit of engine ECU to obtain throttle
Signal is stepped on, and the throttle is stepped on into signal and is sent to the gear box control unit TCU
Drop turns round request sending module, and torsion will be dropped by stepping on signal according to the throttle for the gear box control unit TCU
Request is sent to the control unit of engine ECU；
Torque management module turns round request according to the drop for the control unit of engine ECU and controls the engine
Reduce torque.
With reference to second aspect, an embodiment of the present invention provides the first possible embodiment of second aspect, wherein, institute
Throttle signal acquisition module is stated to include：
Throttle signal acquiring unit, for when vehicle accelerator is operated, the control unit of engine ECU to obtain throttle
Pedal signal, and the throttle is obtained according to the accelerator pedal signal and steps on signal；
The throttle is stepped on signal for the control unit of engine ECU and is sent to institute by throttle signal transmitting element
State gear box control unit TCU.
With reference to second aspect, an embodiment of the present invention provides second of possible embodiment of second aspect, wherein, institute
Torque management module is stated to include；
First moment of torsion control unit turns round request according to the drop for the control unit of engine ECU and controls the hair
Motivation reduces oil mass；
Second moment of torsion control unit turns round request according to the drop for the control unit of engine ECU and controls the hair
Motivation reduces tolerance；
Third moment of torsion control unit controls the hair for the control unit of engine ECU according to the drop square request
Motivation reduces ignition advance angle.
With reference to second aspect, an embodiment of the present invention provides the third possible embodiment of second aspect, wherein, institute
It states drop and turns round request sending module and be additionally operable to the control unit of engine ECU throttle is stepped on by letter by vehicle-mounted control network
Number it is sent to the gear box control unit TCU.
The embodiment of the present invention brings following advantageous effect：
An embodiment of the present invention provides the method and system for preventing vehicle from generating impact, applied to automatic transmission, automatically
Speed changer includes control unit of engine ECU and gear box control unit TCU, method include：When vehicle accelerator is operated,
Control unit of engine ECU obtains throttle and steps on signal, and throttle is stepped on signal and is sent to gear box control unit TCU；Become
Fast case control unit TCU steps on signal according to throttle and drop torsion request is sent to control unit of engine ECU；Engine control is single
First ECU turns round request control engine according to drop reduces torque.The present invention works as vehicle in no throttle to having under the operating mode of throttle, leads to
Crossing reduces the torque of engine at this time, so as to alleviate generated impact of stepping on the gas suddenly, improves driver comfort.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that being understood by implementing the present invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and is obtained in attached drawing.
For the above objects, features and advantages of the present invention is enable to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the method flow diagram provided in an embodiment of the present invention for preventing vehicle from generating impact；
Fig. 2 is another method flow diagram for preventing vehicle from generating impact provided in an embodiment of the present invention；
Fig. 3 is the system schematic provided in an embodiment of the present invention for preventing vehicle from generating impact；
Fig. 4 is another system schematic for preventing vehicle from generating impact provided in an embodiment of the present invention.
Icon：
10- throttle signal acquisition modules；20- drops turn round request sending module；30- torque management modules；The first air-flows of 40- lead to
Road；50- the first moment of torsion control units；60- the second moment of torsion control units；70- third moment of torsion control units.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiment be part of the embodiment of the present invention rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower all other embodiments obtained, shall fall within the protection scope of the present invention.
Current vehicle can not avoid the impact generated when stepping on the gas suddenly, so as to influence the driver comfort of vehicle.
Based on this, a kind of method and system for preventing vehicle from generating impact provided in an embodiment of the present invention can be alleviated and step on the gas suddenly
Generated impact improves driver comfort.
For ease of understanding the present embodiment, prevent vehicle from generating punching to one kind disclosed in the embodiment of the present invention first
The method hit describes in detail.
Embodiment one：
Fig. 1 shows the method flow diagram provided in this embodiment for preventing vehicle from generating impact.
As shown in Figure 1, the method for preventing vehicle from generating impact of the present embodiment is applied to automatic transmission, automatic transmission
Including control unit of engine ECU (Electronic Control Unit, electronic control unit) and gear box control unit
TCU (Transmission Control Unit, automatic gear-box control unit), method includes the following steps：
Step S101, when vehicle accelerator is operated, control unit of engine ECU obtains throttle and steps on signal, and will be oily
Door steps on signal and is sent to gear box control unit TCU；
Step S102, gear box control unit TCU step on signal according to throttle and drop torsion request are sent to engine control
Unit ECU；
Step S103, control unit of engine ECU turn round request control engine according to drop reduces torque.
Vehicle is under no throttle to the operating mode for having throttle, and gear box control unit TCU is by giving control unit of engine ECU
Transmission drop turns round request, limits engine speed and torque rising is too fast, alleviate the dynamic impact brought to vehicle suddenly, reach
The acceptable range of human body.
Step S101 includes procedure below：
When vehicle accelerator is operated, control unit of engine ECU obtains accelerator pedal signal, and is believed according to gas pedal
Number obtaining throttle steps on signal, and throttle is stepped on signal and is sent to gear box control unit TCU.
In the following manner realization can be used in step S103：
Control unit of engine ECU turns round request control engine according to drop reduces oil mass；Or control unit of engine ECU
Turning round request control engine according to drop reduces tolerance；
It reduces the fuel delivery of engine and reduces air demand, the power of engine can be reduced, so as to reduce engine
Torque.
Alternatively, control unit of engine ECU turns round request control engine reduction ignition advance angle to reduce torque according to drop.
When engine (gasoline engine) works, time of ignition has a great impact to the working performance of engine.Advanced ignition
It is exactly that piston reaches spark plug sparking before compression top center, lights the indoor combustion mixture of burning.It is played from time of ignition
Piston reaches compression top center, and the angle that this period, inside crankshaft turned over is known as ignition advance angle.By reducing ignition advance angle
Principle to reduce engine torque is：Ignition advance angle is reduced, delivery temperature can be increased so that power reduces, so as to
Reduce engine torque.
Specifically, throttle is stepped on signal by vehicle-mounted control network and is sent to gearbox control by control unit of engine ECU
Unit TCU processed.
Further, after step S103 is performed, following steps are also performed：
Step S104, gear box control unit TCU obtain engine speed and transmission input shaft rotating speed, and will start
Machine rotating speed is compared with transmission input shaft rotating speed；
Step S105, when engine speed is more than gearbox input speed, gear box control unit TCU stops turning round drop
Request is sent to control unit of engine ECU.
After engine speed is more than transmission input shaft rotating speed, impact will not be generated again, therefore stop to engine
Drop turns round request, so as to ensure that enough dynamic property are provided for vehicle, realizes and turns round control by dropping, in the premise for ensureing dynamic property
Under, alleviate impact sense.
Specifically, gear box control unit TCU obtains engine speed in the following manner：Control unit of engine ECU
Motor speed is obtained, and motor speed is sent to gear box control unit TCU；Gear box control unit TCU receives hair
The motor speed that motivation control unit ECU is sent.
Embodiment two：
Fig. 3 shows the system schematic provided in an embodiment of the present invention for preventing vehicle from generating impact.
As shown in figure 3, the present embodiment prevents the system that vehicle generates impact, applied to automatic transmission, fluid drive
Device includes control unit of engine ECU and gear box control unit TCU, and system includes throttle signal acquisition module 10, throttle
Signal acquisition module 20 and throttle signal acquisition module 30；
Throttle signal acquisition module 10, for when vehicle accelerator is operated, control unit of engine ECU to obtain throttle and steps on
Lower signal, and throttle is stepped on into signal and is sent to gear box control unit TCU
Drop turns round request sending module 20, and torsion request hair will be dropped by stepping on signal according to throttle for gear box control unit TCU
Give control unit of engine ECU；
Torque management module 30, turning round request control engine according to drop for control unit of engine ECU reduces torque.
Further, throttle signal acquisition module 10 includes throttle signal acquiring unit and throttle signal acquiring unit；
Throttle signal acquiring unit, for when vehicle accelerator is operated, control unit of engine ECU to obtain gas pedal
Signal, and throttle is obtained according to accelerator pedal signal and steps on signal；
Throttle is stepped on signal for control unit of engine ECU and is sent to gearbox control by throttle signal acquiring unit
Unit TCU.
Further, torque management module 30 includes the first moment of torsion control unit 31, the second moment of torsion control unit 32, third
Moment of torsion control unit 33；
First moment of torsion control unit 31, turning round request control engine according to drop for control unit of engine ECU reduces oil
Amount；
Second moment of torsion control unit 32, turning round request control engine according to drop for control unit of engine ECU reduces gas
Amount；
Third moment of torsion control unit 33 reduces point for control unit of engine ECU according to drop square request control engine
Fiery advance angle.
Specifically, drop turns round request sending module and is additionally operable to control unit of engine ECU by vehicle-mounted control network by throttle
It steps on signal and is sent to gear box control unit TCU.
The system provided in an embodiment of the present invention for preventing vehicle from generating impact prevents vehicle from producing with what above-described embodiment provided
The method of raw impact has identical technical characteristic, so can also solve the technical issues of identical, reaches identical technique effect.
The method and system for preventing vehicle from generating impact is present embodiments provided, applied to automatic transmission, fluid drive
Device includes control unit of engine ECU and gear box control unit TCU, method include：When vehicle accelerator is operated, start
Machine control unit ECU obtains throttle and steps on signal, and throttle is stepped on signal and is sent to gear box control unit TCU；Gearbox
Control unit TCU steps on signal according to throttle and drop torsion request is sent to control unit of engine ECU；Control unit of engine
ECU turns round request control engine according to drop reduces torque.The present invention works as vehicle in no throttle to having under the operating mode of throttle, passes through
The torque of engine at this time is reduced, so as to alleviate generated impact of stepping on the gas suddenly, improves driver comfort.
The embodiment of the present invention also provides a kind of electronic equipment, and including memory, processor, being stored in memory can locate
The computer program that runs on reason device, processor realize that above-described embodiment provided prevents vehicle from generating when performing computer program
The step of method of impact.
The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium
Calculation machine program performs the step of the method for preventing vehicle from generating impact of above-described embodiment when computer program is run by processor
Suddenly.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instructions such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Convenient for the description present invention and simplify description rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is only used for description purpose, and it is not intended that instruction or hint relative importance.
What the embodiment of the present invention was provided prevent the computer program product of the method for vehicle generation impact, including depositing
The computer readable storage medium of non-volatile program code that processor can perform, the instruction that said program code includes are stored up
Available for performing the method described in previous methods embodiment, specific implementation can be found in embodiment of the method, and details are not described herein.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit can refer to the corresponding process in preceding method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.The apparatus embodiments described above are merely exemplary, for example, the division of the unit,
Only a kind of division of logic function, can there is other dividing mode in actual implementation, in another example, multiple units or component can
To combine or be desirably integrated into another system or some features can be ignored or does not perform.Another point, it is shown or beg for
The mutual coupling, direct-coupling or communication connection of opinion can be by some communication interfaces, device or unit it is indirect
Coupling or communication connection can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separate, be shown as unit
The component shown may or may not be physical unit, you can be located at a place or can also be distributed to multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
That each unit is individually physically present, can also two or more units integrate in a unit.
If the function is realized in the form of SFU software functional unit and is independent product sale or in use, can be with
It is stored in the non-volatile computer read/write memory medium that a processor can perform.Based on such understanding, the present invention
The part that substantially contributes in other words to the prior art of technical solution or the part of the technical solution can be with software
The form of product embodies, which is stored in a storage medium, including some instructions use so that
One computer equipment (can be personal computer, server or the network equipment etc.) performs each embodiment institute of the present invention
State all or part of step of method.And aforementioned storage medium includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-
Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with
Store the medium of program code.
Finally it should be noted that：Embodiment described above, only specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, protection scope of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that：Any one skilled in the art
In the technical scope disclosed by the present invention, it can still modify to the technical solution recorded in previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement is carried out to which part technical characteristic；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover the protection in the present invention
Within the scope of.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
- A kind of 1. method for preventing vehicle from generating impact, which is characterized in that applied to automatic transmission, the automatic transmission packet Control unit of engine ECU and gear box control unit TCU is included, the method includes：When vehicle accelerator is operated, the control unit of engine ECU obtains throttle and steps on signal, and the throttle is stepped on Signal is sent to the gear box control unit TCU；The gear box control unit TCU steps on signal according to the throttle and drop torsion request is sent to the engine control list First ECU；The control unit of engine ECU turns round request according to the drop and the engine is controlled to reduce torque.
- 2. the method according to claim 1 for preventing vehicle from generating impact, which is characterized in that described when vehicle accelerator is stepped on When lower, the control unit of engine ECU obtains throttle and steps on signal, and the throttle is stepped on signal and is sent to gearbox control Unit TCU processed, including：When vehicle accelerator is operated, the control unit of engine ECU obtains accelerator pedal signal, and is stepped on according to the throttle Partitioned signal obtains the throttle and steps on signal；The throttle is stepped on signal and is sent to the gear box control unit TCU by the control unit of engine ECU.
- 3. the method according to claim 1 for preventing vehicle from generating impact, which is characterized in that the control unit of engine ECU controls the engine to reduce torque according to the drop square request, including：The control unit of engine ECU turns round request according to the drop and the engine is controlled to reduce oil mass；Alternatively,The control unit of engine ECU turns round request according to the drop and the engine is controlled to reduce tolerance；Alternatively,The control unit of engine ECU turns round request according to the drop and the engine is controlled to reduce ignition advance angle.
- 4. the method according to claim 1 for preventing vehicle from generating impact, which is characterized in that the control unit of engine The throttle is stepped on signal and is sent to the gear box control unit TCU by ECU, including：The throttle is stepped on signal by vehicle-mounted control network and is sent to the gearbox control by the control unit of engine ECU Unit TCU processed.
- 5. the method according to claim 1 for preventing vehicle from generating impact, which is characterized in that the method further includes：The gear box control unit TCU obtains engine speed and transmission input shaft rotating speed, and the engine is turned It is fast to be compared with the transmission input shaft rotating speed；When the engine speed is more than the gearbox input speed, the gear box control unit TCU stops by described in Drop turns round request and is sent to the control unit of engine ECU.
- 6. the method according to claim 5 for preventing vehicle from generating impact, which is characterized in that the gear box control unit TCU obtains engine speed, including：The control unit of engine ECU obtains the motor speed, and the motor speed is sent to the speed change Case control unit TCU；The gear box control unit TCU receives the motor speed that the control unit of engine ECU is sent.
- 7. a kind of system for preventing vehicle from generating impact, which is characterized in that applied to automatic transmission, the automatic transmission packet Control unit of engine ECU and gear box control unit TCU is included, the system comprises：Throttle signal acquisition module, for when vehicle accelerator is operated, the control unit of engine ECU to obtain throttle and steps on Signal, and the throttle is stepped on into signal and is sent to the gear box control unit TCUDrop turns round request sending module, and torsion request will be dropped by stepping on signal according to the throttle for the gear box control unit TCU It is sent to the control unit of engine ECU；Torque management module turns round request according to the drop for the control unit of engine ECU and the engine is controlled to reduce Torque.
- 8. the system according to claim 7 for preventing vehicle from generating impact, which is characterized in that the throttle signal obtains mould Block includes：Throttle signal acquiring unit, for when vehicle accelerator is operated, the control unit of engine ECU to obtain gas pedal Signal, and the throttle is obtained according to the accelerator pedal signal and steps on signal；The throttle is stepped on signal for the control unit of engine ECU and is sent to the change by throttle signal transmitting element Fast case control unit TCU.
- 9. the system according to claim 7 for preventing vehicle from generating impact, which is characterized in that the torque management module packet It includes；First moment of torsion control unit turns round request according to the drop for the control unit of engine ECU and controls the engine Reduce oil mass；Second moment of torsion control unit turns round request according to the drop for the control unit of engine ECU and controls the engine Reduce tolerance；Third moment of torsion control unit controls the engine for the control unit of engine ECU according to the drop square request Reduce ignition advance angle.
- 10. the system according to claim 7 for preventing vehicle from generating impact, which is characterized in that the drop is turned round request and sent Module, which is additionally operable to the control unit of engine ECU, to be stepped on signal by the throttle by vehicle-mounted control network and is sent to the change Fast case control unit TCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711499553.6A CN108189831A (en) | 2017-12-30 | 2017-12-30 | Prevent vehicle from generating the method and system of impact |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711499553.6A CN108189831A (en) | 2017-12-30 | 2017-12-30 | Prevent vehicle from generating the method and system of impact |
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| CN108189831A true CN108189831A (en) | 2018-06-22 |
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| CN201711499553.6A Pending CN108189831A (en) | 2017-12-30 | 2017-12-30 | Prevent vehicle from generating the method and system of impact |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109611546A (en) * | 2019-01-24 | 2019-04-12 | 浙江吉利汽车研究院有限公司 | A kind of jerk management system and method for power transmission system of vehicle |
| CN110762201A (en) * | 2018-07-25 | 2020-02-07 | 广州汽车集团股份有限公司 | Method and system for eliminating impact between driving wheel and driven wheel of transmission |
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