CN117589445A - Method, recording medium and system for quantifying influence of clutch rust on gear shifting force in laboratory - Google Patents
Method, recording medium and system for quantifying influence of clutch rust on gear shifting force in laboratory Download PDFInfo
- Publication number
- CN117589445A CN117589445A CN202311311750.6A CN202311311750A CN117589445A CN 117589445 A CN117589445 A CN 117589445A CN 202311311750 A CN202311311750 A CN 202311311750A CN 117589445 A CN117589445 A CN 117589445A
- Authority
- CN
- China
- Prior art keywords
- clutch
- gear shifting
- gearbox
- synchronizer
- quantifying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 238000012545 processing Methods 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 230000007613 environmental effect Effects 0.000 claims abstract description 7
- 230000007797 corrosion Effects 0.000 claims description 17
- 238000005260 corrosion Methods 0.000 claims description 17
- 238000012360 testing method Methods 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 4
- 230000001133 acceleration Effects 0.000 claims description 3
- 230000001627 detrimental effect Effects 0.000 claims description 3
- 230000002349 favourable effect Effects 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 claims description 2
- 238000004146 energy storage Methods 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 9
- 230000006866 deterioration Effects 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 abstract description 3
- 230000001052 transient effect Effects 0.000 abstract 1
- 238000004590 computer program Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 239000003921 oil Substances 0.000 description 7
- 238000003860 storage Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000011158 quantitative evaluation Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/022—Power-transmitting couplings or clutches
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention belongs to the technical field of transmission control of automobile gearboxes, and discloses a method for quantifying influence of clutch rust on gear shifting force in a laboratory. The situation that the speed change system is continuously deteriorated along with the environmental change in the whole life cycle is simulated, and the influence of the deterioration degree on the shifting force is quantified, so that the reason of the change of the shifting force can be accurately revealed, improvement can be specifically proposed, and the speed change system has guiding significance on the performance and reliability of the shifting force of the automobile. The invention also provides a non-transient readable recording medium storing the program of the method and a system comprising the medium, and the program can be called by a processing circuit to execute the method.
Description
Technical Field
The invention belongs to the technical field of transmission control of automobile gearboxes, and particularly discloses a method for quantifying influence of clutch rust on gear shifting force in a laboratory, a recording medium and a system for storing a program of the method.
Background
In order to guarantee driving safety, improve operation experience of a driver, promote driving fun, often need to calculate shifting force when carrying out power design to manual gear automobiles, and simulate and verify in a laboratory, so that optimization is carried out in later design, each large manufacturer analyzes to automobile dynamic shifting performance influence factors, including synchronizer capacity, gearbox drag torque, gearbox speed ratio, clutch driven disc, gearbox constant engagement moment of inertia and the like, and basically accords with the new vehicle state of the whole vehicle.
However, these methods have two problems:
1) After the whole vehicle is used, the gear shifting force can be changed (generally gradually increased), and the test scheme cannot be verified.
In the whole vehicle use process, the gear shifting force is not constant, and along with the service life, mileage and operation times of the whole vehicle, the gear shifting related parts can be subjected to reliability degradation, so that the gear shifting force is gradually increased until the gear shifting is difficult.
2) The influence factors of the schemes on the gear shifting performance verification do not consider the influences of clutch separation performance, temperature, reliability (in the whole vehicle use process, the deterioration of clutch spline corrosion, dust, abrasion and the like) and the like.
When shifting gears, the clutch needs to be thoroughly separated, but the separation is thoroughly opposite, in fact, the clutch driven plate always has a certain friction torque with the flywheel and the pressure plate, the friction torque acts to enable the clutch driven plate to keep rotating together with the flywheel, and the torque needs to be overcome when shifting gears, so that the synchronous force is increased. With the use of the whole vehicle, the reliability of parts changes (deteriorates), wherein, the abrasion, rust and dust of the clutch spline are accumulated on the spline working surface, the clutch driven disc can slide on a gear box shaft more and more unsmoothly, at the moment required by the separation of the driven disc and the flywheel is larger and larger, and the gear shifting force of the whole vehicle is larger and larger until the gear cannot be shifted. How to simulate the condition that the speed change system is continuously deteriorated along with the environmental change in the whole life cycle and quantify the influence of the degree of the deterioration on the shifting force is a problem which is urgently needed to be solved by those skilled in the art.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for quantifying the influence of clutch rust on gear shifting force in a laboratory, which comprises the following steps:
the method comprises the steps that a simulated power input end and a simulated output end load are arranged in a laboratory, a gearbox with a clutch is connected between the simulated power input end and the simulated output end load, the clutch is provided with an operation pedal for controlling the clutch, the gearbox is provided with a gear shifting mechanism, an output shaft of a motor is provided with a rotating speed and torque measuring device, and an output shaft of the gearbox is provided with a torque measuring device;
starting a motor, applying different environmental influences on clutch splines and the like to enable the clutch splines and the like to be in different corrosion levels, performing gear shifting tests under the different corrosion levels, and measuring the rotating speed and the torque of an output shaft of the motor and the torque of an output shaft of a gearbox;
and substituting the measured values obtained by the steps into a gear shifting force calculation formula, respectively calculating the gear shifting forces of different gear stages of the clutch under different corrosion levels, comparing the gear shifting forces with corresponding values of the non-corrosion clutch, and quantifying the influence of the corrosion of the clutch on the gear shifting forces.
Preferably, the simulated power input end is a motor with a flywheel, wherein the flywheel is connected with the clutch, the load of the simulated output end is a tail flywheel with the same moment of inertia as the rated load, and the tail flywheel is connected with an output shaft of the gearbox to obtain power.
Preferably, the gear shifting force calculation formula is:
wherein,
I 0 inertia of whole vehicle to output shaft of gearbox, kg.m 2
ω 2 The rotation speed of the driven part of the synchronizer, rad,
ω 1 speed of active part of synchronizer, rad
D synchronizer diameter, m
Angular acceleration, rad/s, of the theta synchronizer ring during cone angle omega shifting
T s Synchronization time, sec
M synchronizer capacity, m=d×μ/(2×sin θ)
D synchronizer diameter, m
Coefficient of friction of mu synchronizer ring
i t Speed ratio of gearbox after gear shifting, i t0 Speed ratio of gearbox before gear shifting
I transfer to moment of inertia on input shaft, including gearbox I g Driven disc is used by
Quantity I c ，kg.m 2
T f Transmission input shaft drag torque, favorable upshift, unfavorable downshift, N.m
T fc Clutch drag torque, N.m, is detrimental during shifting
Force on tooth sleeve of F synchronizer, N
N is the rotation speed of the input shaft, rpm
P handle end operating force N
I s Gear ratio from tooth sleeve to handle end
Gamma transmission efficiency from toothed sleeve to handle end
Another aspect of the present invention is to provide a non-transitory readable recording medium storing one or more programs including a plurality of instructions that, when executed, cause a processing circuit to perform a method of quantifying an effect of clutch rust on shifting forces as described above.
In yet another aspect, the present invention provides a tidal power station generator regulation system comprising a processing circuit and a memory electrically coupled thereto, the memory configured to store at least one program comprising a plurality of instructions, the processing circuit running the program to perform a method of quantifying the effects of clutch rust on shift force as described above
Compared with the prior art, the invention has the following beneficial effects:
the method can simulate the continuously deteriorated condition of the speed change system along with the environmental change in the whole life cycle and quantify the influence of the deterioration degree on the shifting force, so that the reason of the change of the shifting force can be accurately revealed, the improvement can be specifically proposed, and the method has guiding significance on the performance and the reliability of the shifting force of the automobile.
Drawings
FIG. 1 is a schematic diagram of a measuring device used in an embodiment of the present invention;
FIG. 2 is a schematic illustration of a manual transmission power transfer;
in the figure, a 1-drive motor; 2-a rotational speed/torque meter; 3-a first inertial flywheel; 4-clutch driven plate; 5-clutch pressure plate assembly; 6-gearbox assembly; 7-a first support bearing; 8-a torque meter; 9-a second support bearing; 10-a second inertia flywheel; 11-a third support bearing; 12-a shift cable; 13-selecting a gear-selecting inhaul cable; 14-selecting a gear shift operating lever; 15-selecting a gear shifting handle; 16-clutch slave cylinder assembly; 17-clutch oil hose; 18-a clutch master cylinder; 19-clutch operated electrically operated valve.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention, where the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are obtained by a person skilled in the art without innovative work, are intended to be within the scope of the invention.
The invention is described in further detail below with reference to the drawings and specific examples of the specification:
referring to the drive sequence shown in fig. 2, the test equipment is connected in the manner of fig. 1: the output shaft of the driving motor 1 is provided with a rotating speed/torque measuring instrument 2, and the rotating speed/torque measuring instrument is connected with a first inertial flywheel 3 for replacing the output power of the internal combustion engine; then is connected to a gearbox assembly 6 through a clutch driven plate 4 and a clutch pressure plate assembly 5; the output shaft of the gearbox is supported by a first support bearing 7; the shaft end is connected with a torque measuring instrument 8 through a flange; the torque measuring instrument 8 is connected with a rotating shaft of the second inertia flywheel 10 through a flange; the two ends of the rotating shaft of the second inertia flywheel 10 are respectively supported by a second supporting bearing 9 and a third supporting bearing 11; the gear selecting and shifting control lever 14 is connected with a synchronous gear ring of a corresponding gear through a gear selecting inhaul cable 13 and a gear shifting inhaul cable 12 respectively; a gear selecting and shifting handle 15 is arranged at the free end of the gear selecting and shifting control lever 14 and is used for operating gear shifting; the clutch control electric valve 19 forces hydraulic oil to enter the clutch slave cylinder assembly 16 through the clutch oil delivery hose 17 by changing the volume of the clutch control master cylinder 18, and pushes the clutch pressure plate assembly 5 to perform corresponding clutch action.
When the test is started, the driving motor 1 is started, different environmental influences are applied to clutch splines and the like to enable the clutch splines and the like to be in different corrosion levels, gear shifting tests are carried out under the different corrosion levels, and the rotating speed and the torque of an output shaft of the driving motor 1 and the torque of an output shaft of the gearbox assembly 6 are measured;
and substituting the measured value into a gear shifting force calculation formula, respectively calculating the gear shifting forces of different gear stages of the clutch under different corrosion levels, comparing the gear shifting forces with corresponding values of the non-corrosion clutch, and quantifying the influence of the corrosion of the clutch on the gear shifting forces.
The gear shifting force calculation formula is as follows:
wherein,
I 0 inertia of whole vehicle to output shaft of gearbox, kg.m 2
ω 2 The rotation speed of the driven part of the synchronizer, rad,
ω 1 speed of active part of synchronizer, rad
D synchronizer diameter, m
Angular acceleration, rad/s, of the theta synchronizer ring during cone angle omega shifting
T s Synchronization time, sec
M synchronizer capacity, m=d×μ/(2×sin θ)
D synchronizer diameter, m
Coefficient of friction of mu synchronizer ring
i t Speed ratio of gearbox after gear shifting, i t0 Speed ratio of gearbox before gear shifting
I transfer to moment of inertia on input shaft, including gearbox I g Inertia of driven disc I c ，kg.m 2
T f Transmission input shaft drag torque, favorable upshift, unfavorable downshift, N.m
T fc Clutch drag torque, N.m, is detrimental during shifting
Force on tooth sleeve of F synchronizer, N
N is the rotation speed of the input shaft, rpm
P handle end operating force N
I s Gear ratio from tooth sleeve to handle end
Gamma transmission efficiency from toothed sleeve to handle end
When the vehicle is new, the clutch, the gearbox and the system components are normal, the clutch drag torque is not more than 0.8Nm/1.4mm, and the comparison data are as follows, taking 1 up 2 gear as an example:
the working conditions are changed, the oil temperature of the gearbox and the working environment temperature of the clutch are controlled, so that the degradation state of the clutch after long-time use is simulated.
Gearbox assembly 6 oil temperature control: the oil temperature sensor is arranged on the oil drain plug, and the oil temperature of the gearbox is controlled to be 80+/-5 ℃ through external air cooling heat dissipation in the test process.
The working environment of the clutch pressure plate 4 and the clutch driven plate 5 is controlled by:
salt spray environment: spraying from the upper end of the clutch pressure plate 5 by using standard 1% sodium chloride L solution with the temperature of 23+/-2 ℃, spraying pressure of 100 kpa+/-30 kpa, uniformly distributing the spraying on the input shafts of the first flywheel 3, the clutch pressure plate assembly 5, the clutch driven plate 4 and the gearbox assembly 6 through the action of gravity, controlling the spraying to ensure that the relative humidity is kept at 90+/-3%, cooling by using an air blowing mode outside a shell, and controlling the temperature of the flywheel to be not more than 150 ℃.
Because of the influence of salt fog, the internal spline of the flywheel 3, the clutch driven disc 5 and the spline of the input shaft of the gearbox 5 are rusted, so that the clutch driven disc 5 does not slide smoothly on one shaft of the gearbox 6, and the gear shifting force is gradually increased. After environmental changes caused corrosion of the clutch, test data obtained are shown in the following table:
it will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the invention may take the form of a computer program product embodied on one or more computers, usable storage media (including but not limited to disk storage, CD-ROM, optical storage, and the like) having computer usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The method comprises the steps of assembling the steps into a program and storing the program in a hard disk or other non-transitory storage media, so that the technical scheme of the non-transitory readable recording medium is formed; the storage medium is electrically connected with a computer processor, and the quantitative evaluation of the influence of the clutch degradation on the gear shifting force can be completed through data processing, so that the technical scheme of the system for quantifying the influence of the clutch rust on the gear shifting force in a laboratory is formed.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A method for quantifying influence of clutch spline and gearbox input shaft spline rust on gear shifting force in a laboratory is characterized by comprising the following steps:
the method comprises the steps that a simulated power input end and a simulated output end load are arranged in a laboratory, a gearbox with a clutch is connected between the simulated power input end and the simulated output end load, the clutch is provided with an operation pedal for controlling the clutch, the gearbox is provided with a gear shifting mechanism, an output shaft of a motor is provided with a rotating speed and torque measuring device, and an output shaft of the gearbox is provided with a torque measuring device;
starting a motor, applying different environmental influences on clutch splines and the like to enable the clutch splines and the like to be in different corrosion levels, performing gear shifting tests under the different corrosion levels, and measuring the rotating speed and the torque of an output shaft of the motor and the torque of an output shaft of a gearbox;
and substituting the measured values obtained by the steps into a gear shifting force calculation formula, respectively calculating the gear shifting forces of different gear stages of the clutch under different corrosion levels, comparing the gear shifting forces with corresponding values of the non-corrosion clutch, and quantifying the influence of the corrosion of the clutch on the gear shifting forces.
2. The method for quantifying the influence of clutch rust on gear shifting force in a laboratory according to claim 1, wherein the simulated power input end is a motor with a flywheel, wherein the flywheel is connected with the clutch, the load at the simulated output end is a tail flywheel with the same moment of inertia as the rated load, and the tail flywheel is connected with an output shaft of a gearbox to obtain power.
3. A method for quantifying clutch rust impact on shifting forces in a laboratory according to claim 1,
the gear shifting force calculation formula is as follows:
wherein,
I 0 inertia of whole vehicle to output shaft of gearbox, kg.m 2
ω 2 The rotation speed of the driven part of the synchronizer, rad,
ω 1 speed of active part of synchronizer, rad
D synchronizer diameter, m
Angular acceleration, rad/s, of the theta synchronizer ring during cone angle omega shifting
T s Synchronization time, sec
M synchronizer capacity, m=d×μ/(2×sin θ)
D synchronizer diameter, m
Coefficient of friction of mu synchronizer ring
i t Speed ratio of gearbox after gear shifting, i t0 Speed ratio of gearbox before gear shifting
I transfer to moment of inertia on input shaft, including gearbox I g Inertia of driven disc I c ，kg.m 2
T f Transmission input shaft drag torque, favorable upshift, unfavorable downshift, N.m
T fc Clutch drag torque, N.m, is detrimental during shifting
Force on tooth sleeve of F synchronizer, N
N is the rotation speed of the input shaft, rpm
P handle end operating force N
I s Gear ratio from tooth sleeve to handle end
Gamma is the transmission efficiency from the tooth sleeve to the handle end.
4. A non-transitory readable recording medium storing one or more programs comprising a plurality of instructions, which when executed cause a processing circuit to perform a method of quantifying the effect of clutch rust on shift force of any of claims 1-3.
5. A generator motor regulation system for a compressed air energy storage system comprising a processing circuit and a memory electrically coupled thereto, wherein the memory is configured to store at least one program comprising a plurality of instructions, the processing circuit running the program to perform a method of quantifying the effect of clutch rust on shifting forces in a laboratory as claimed in any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311311750.6A CN117589445A (en) | 2023-10-11 | 2023-10-11 | Method, recording medium and system for quantifying influence of clutch rust on gear shifting force in laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311311750.6A CN117589445A (en) | 2023-10-11 | 2023-10-11 | Method, recording medium and system for quantifying influence of clutch rust on gear shifting force in laboratory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117589445A true CN117589445A (en) | 2024-02-23 |
Family
ID=89912189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311311750.6A Pending CN117589445A (en) | 2023-10-11 | 2023-10-11 | Method, recording medium and system for quantifying influence of clutch rust on gear shifting force in laboratory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117589445A (en) |
-
2023
- 2023-10-11 CN CN202311311750.6A patent/CN117589445A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108363826B (en) | Wet-type double-clutch sliding friction limit working condition and cooling flow demand analysis method | |
| JP5401560B2 (en) | Method and apparatus for controlling the release of an automated vehicle master clutch | |
| CN103827551B (en) | The gear change control device of automatic transmission and method | |
| US20100286878A1 (en) | Method for cold start protection of a vehicle drivetrain | |
| CN103635341A (en) | Powertrain for a vehicle and method for controlling a powertrain | |
| CN114616412B (en) | Method for determining drag torque coefficient | |
| Zhao et al. | Uninterrupted shift transmission and its shift characteristics | |
| CN102537313B (en) | Trigger automatic gear-box, the particularly optimization of commercial car automatic gear-box | |
| KR102463716B1 (en) | Controlling method of RPM flare of transmission for hybrid vehicle | |
| CN117589445A (en) | Method, recording medium and system for quantifying influence of clutch rust on gear shifting force in laboratory | |
| CN102162519B (en) | Method for controlling an automatic transmission of a motor vehicle after a cold start and transmission system | |
| JP2015113932A (en) | Control device of automatic transmission | |
| JP3671565B2 (en) | Test system | |
| Awadallah et al. | Eliminating the torque hole: Using a mild hybrid EV architecture to deliver better driveability | |
| Tamada et al. | Modeling for design simplification and power-flow efficiency improvement in an automotive planetary gearbox: A case example | |
| CN110933941B (en) | Method for controlling gear change during regenerative braking phase | |
| JP5834874B2 (en) | Road slope estimation device | |
| CN115290344A (en) | Complete vehicle model for DCT vehicle type power performance simulation and construction method | |
| CN109115502B (en) | Engine universal characteristic detection method and module | |
| CN110737950B (en) | Automatic gearbox design method and device | |
| CN107531234A (en) | Control method and control device of the hybrid power means of transport prime mover as the supplement of internal combustion engine are used according to control from view of profit | |
| RU2438107C1 (en) | Method of determining wheeled vehicle engine torque | |
| Park et al. | Novel self-clamping clutch mechanism for micro electric vehicle transmission | |
| Hempy | Transient maneuvers and pressure analysis on an automotive torque converter | |
| CN102748148A (en) | Method for controlling the number of rotations per minute of an internal combustion engine during a takeoff phase of a vehicle provided with a manual transmission |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |