CN106958649B - A kind of gear method for limiting suitable for heavy AMT vehicle - Google Patents
A kind of gear method for limiting suitable for heavy AMT vehicle Download PDFInfo
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- CN106958649B CN106958649B CN201710349284.9A CN201710349284A CN106958649B CN 106958649 B CN106958649 B CN 106958649B CN 201710349284 A CN201710349284 A CN 201710349284A CN 106958649 B CN106958649 B CN 106958649B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/22—Locking of the control input devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/68—Inputs being a function of gearing status
- F16H59/70—Inputs being a function of gearing status dependent on the ratio established
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/16—Inhibiting or initiating shift during unfavourable conditions, e.g. preventing forward reverse shift at high vehicle speed, preventing engine over speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/68—Inputs being a function of gearing status
- F16H59/70—Inputs being a function of gearing status dependent on the ratio established
- F16H2059/706—Monitoring gear ratio in stepped transmissions, e.g. by calculating the ratio from input and output speed
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
The present invention relates to a kind of gear method for limiting suitable for heavy AMT vehicle, it is characterised in that: it is the following steps are included: step 1): receiving gear and limits CAN bus information data, and reads limitation gear value；Step 2): judge whether current vehicle gear is more than or equal to the gear value kept off lower by three than limitation gear and otherwise goes to step 1) if it is, going to step 3)；Step 3): vehicle sends limit stop and controls information TC1, and information sends A/M mode and P/E pattern information based on the received, and sending gear is the gear value received.
Description
Technical field
The invention belongs to finished vehicle electronic control technology fields, and in particular to a kind of gear limitation suitable for heavy AMT vehicle
Method.
Background technique
With the rapid development of auto industry, it is equipped with the heavy-duty car of AMT gearbox increasingly by the approval of user, with
Traditional manual gear has high, compact-sized, at low cost, easily fabricated, the achievable intelligent gearshift of transmission efficiency compared to AMT gearbox
And the advantages that easy to operate.The power interruption phenomenon that will appear when compared to gear shifting of manual gearbox, AMT gearbox substantially increase
The fluency of shift, improves shift speed and driver comfort.
Traditional manual is kept off under some special operation conditions, is difficult to meet the operational requirements of vehicle.AMT gearbox possesses intelligence and changes
The functions such as gear, gear limitation, can be very good to meet the requirement under certain special operation conditions.
However the gear method for limiting of heavy type AMT vehicle in the prior art, highest traveling gear can not be limited in shift
Position, is unable to ensure the security performance of vehicle.This is in place of the deficiencies in the prior art.
Therefore, in view of the above-mentioned drawbacks in the prior art, provide and design a kind of gear limitation side suitable for heavy AMT vehicle
Method；To solve the above technical problems, it is necessary.
Summary of the invention
It is an object of the present invention to be suitable for heavy type AMT in view of the above-mentioned drawbacks of the prior art, providing and designing one kind
The gear method for limiting of vehicle, to solve the above technical problems.
To achieve the above object, the present invention provides following technical scheme:
A kind of gear method for limiting suitable for heavy AMT vehicle, it is characterised in that: it the following steps are included:
Step 1): receiving gear and limit CAN bus information data, and reads limitation gear value；
Step 2): judging whether current vehicle gear is more than or equal to the gear value of three gear lower than limitation gear, if
It is then to go to step 3), otherwise goes to step 1)；
Step 3): vehicle sends limit stop and controls information TC1, and information sends A/M mode and P/E mode letter based on the received
Breath, sending gear is the gear value received；
Step 4): judging whether P/E key is pressed, if it is, going to step 41, otherwise goes to step 5；
Step 41): it sends TC1 information and switches P/E mode, and go to step 5；
Step 5): judging whether A/M key is pressed, if it is, going to step 51, otherwise goes to step 6；
Step 51): it sends TC1 information and switches A/M mode, and go to step 6；
Step 6): judge whether present mode is manual gear pattern, if it is step 8 is gone to, otherwise goes to step 7；
Step 7): it determines that present mode is automatic gear pattern, and goes to step 71；
Step 71): judging whether neutral gear key is pressed, if it is, going to step 72, otherwise goes to step 73；
Step 72): neutral gear request is sent, and goes to step 9；
Step 73): judging whether to pull back handle downshift, if it is step 74 is gone to, otherwise goes to step 75；
Step 74): gear request that transmission gear, that is, current shift subtracts one, and go to step 9；
Step 75): judging whether pushing handle forward, if it is goes to step 76, otherwise, goes to step 9；
Step 76): judging whether be less than limitation gear value after current shift adds a gear, if it is, step 77 is gone to, it is no
Then go to step 78；
Step 77): it sends gear, that is, current shift and a gear is added to request, and go to step 9；
Step 78): limitation gear request is sent, and goes to step 9；
Step 8): judging whether neutral gear key is pressed, if it is, going to step 81, otherwise goes to step 82；
Step 81): neutral gear request is sent, and goes to step 9；
Step 82): judge whether to pull back handle downshift, if it is, going to step 83, otherwise go to step 84；
Step 83): gear request that transmission gear, that is, current shift subtracts one, and go to step 9；
Step 84): judge whether that pushing handle adds gear forward, if it is goes to step 85, otherwise goes to step 9；
Step 85): judge that current shift adds whether a gear is less than limitation gear, if it is, going to step 86, otherwise turns
To step 87；
Step 86): it sends gear, that is, current shift and a gear is added to request, and go to step 9；
Step 87): limitation gear request is sent, and goes to step 9；
Step 9): judging whether current shift is more than or equal to three gear lower than limitation gear value, if it is, going to step
Rapid 4, otherwise go to step 10；
Step 10): A/M mode does not control, P/E mode does not control, does not send limit stop control information TC1；Go to step 1.
Preferably, the step 73 further includes following judgment criteria:
Whether transmitter revolving speed is lower than 1150r/min, if satisfaction pulls back handle or transmitter revolving speed is lower than
Either condition in 1150r/min, then go to step 74, if be not satisfied, goes to step 75.
Preferably, the step 75 further includes following judgment criteria:
Whether transmitter revolving speed is higher than 1700r/min and speed and is greater than 8km/h, if meet pushing handle forward add gear or
Engine speed is higher than 1700r/min and speed is greater than 8km/h, and any of two conditions then go to step 76, otherwise turn
To step 9.
The beneficial effects of the present invention are meet the duty requirements of the heavy vehicle of matching AMT, realize the same of intelligent gearshift
When, required highest traveling gear is limited, the safety of vehicle is improved, guarantees Vehicle Speed, reduce excessive velocities to whole
Danger coefficient caused by vehicle.
In addition, design principle of the present invention is reliable, structure is simple, has very extensive application prospect.
It can be seen that compared with prior art, the present invention have substantive distinguishing features outstanding and it is significant ground it is progressive, implementation
Beneficial effect be also obvious.
Detailed description of the invention
Fig. 1 is a kind of control flow chart of gear method for limiting suitable for heavy AMT vehicle provided by the invention.
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawing and by specific embodiment, and following embodiment is to the present invention
Explanation, and the invention is not limited to following implementation.
As shown in Figure 1, a kind of gear method for limiting suitable for heavy AMT vehicle provided by the invention, it is characterised in that: it
The following steps are included:
Step 1): receiving gear and limit CAN bus information data, and reads limitation gear value；
Step 2): judging whether current vehicle gear is more than or equal to the gear value of three gear lower than limitation gear, if
It is then to go to step 3), otherwise goes to step 1)；
Step 3): vehicle sends limit stop and controls information TC1, and information sends A/M mode and P/E mode letter based on the received
Breath, sending gear is the gear value received；
Step 4): judging whether P/E key is pressed, if it is, going to step 41, otherwise goes to step 5；
Step 41): it sends TC1 information and switches P/E mode, and go to step 5；
Step 5): judging whether A/M key is pressed, if it is, going to step 51, otherwise goes to step 6；
Step 51): it sends TC1 information and switches A/M mode, and go to step 6；
Step 6): judge whether present mode is manual gear pattern, if it is step 8 is gone to, otherwise goes to step 7；
Step 7): it determines that present mode is automatic gear pattern, and goes to step 71；
Step 71): judging whether neutral gear key is pressed, if it is, going to step 72, otherwise goes to step 73；
Step 72): neutral gear request is sent, and goes to step 9；
Step 73): judging whether to pull back handle downshift, if it is step 74 is gone to, otherwise goes to step 75；
Step 74): gear request that transmission gear, that is, current shift subtracts one, and go to step 9；
Step 75): judging whether pushing handle forward, if it is goes to step 76, otherwise, goes to step 9；
Step 76): judging whether be less than limitation gear value after current shift adds a gear, if it is, step 77 is gone to, it is no
Then go to step 78；
Step 77): it sends gear, that is, current shift and a gear is added to request, and go to step 9；
Step 78): limitation gear request is sent, and goes to step 9；
Step 8): judging whether neutral gear key is pressed, if it is, going to step 81, otherwise goes to step 82；
Step 81): neutral gear request is sent, and goes to step 9；
Step 82): judge whether to pull back handle downshift, if it is, going to step 83, otherwise go to step 84；
Step 83): gear request that transmission gear, that is, current shift subtracts one, and go to step 9；
Step 84): judge whether that pushing handle adds gear forward, if it is goes to step 85, otherwise goes to step 9；
Step 85): judge that current shift adds whether a gear is less than limitation gear, if it is, going to step 86, otherwise turns
To step 87；
Step 86): it sends gear, that is, current shift and a gear is added to request, and go to step 9；
Step 87): limitation gear request is sent, and goes to step 9；
Step 9): judging whether current shift is more than or equal to three gear lower than limitation gear value, if it is, going to step
Rapid 4, otherwise go to step 10；
Step 10): A/M mode does not control, P/E mode does not control, does not send limit stop control information TC1；Go to step 1.
In the present embodiment, the step 73 further includes following judgment criteria:
Whether transmitter revolving speed is lower than 1150r/min, if satisfaction pulls back handle or transmitter revolving speed is lower than
Either condition in 1150r/min, then go to step 74, if be not satisfied, goes to step 75.
In the present embodiment, the step 75 further includes following judgment criteria:
Whether transmitter revolving speed is higher than 1700r/min and speed and is greater than 8km/h, if meet pushing handle forward add gear or
Engine speed is higher than 1700r/min and speed is greater than 8km/h, and any of two conditions then go to step 76, otherwise turn
To step 9.
In the technical program, the information of TC1 is as follows:
In the technical program:
A/M key on shift handle may be implemented the switching of automatic gear pattern and manual gear pattern, on shift handle
The switching of dynamic mode and economic model may be implemented in P/E key.When gearbox state is automatic catch mode A, shift hand is pressed
After the A/M key of handle, manual gear M-mode is switched to；When gearbox state is manual gear M-mode, after pressing A/M key, switching
At automatic catch mode A.Vehicle switches to power P mode after economic E mode downward driving, the P/E key for pressing shift handle；
Vehicle is in power P mode downward driving, after pressing P/E key, switches to economic E mode.
Neutral gear on shift handle by after key pressing, no matter manual gear M-mode or automatic catch mode A, can be direct
It is switched to neutral position state.Gearbox may also can operate shift handle when being in automatic catch mode A, therefore enter limit stop mode
Afterwards, no matter automatic gear-box is in manual gear M-mode or automatic catch mode A, and when pulling back shift handle, limit stop controls CAN letter
The gear that sends is the vehicle current shift gear that subtracts one in breath TC1；When pushing away shift handle forward, need first to compare vehicle current shift
Add the size of a gear with the limitation gear received, if vehicle current shift adds a gear to be more than or equal to the limitation gear received,
The gear sent in limit stop control CAN message TC1 is the limitation gear received；When pushing away shift handle forward, if vehicle is current
Gear adds a gear to be less than the limitation gear received, and the gear sent in limit stop control CAN message TC1 is that vehicle current shift adds
One gear.
Into after limit stop mode, when gearbox is in automatic catch mode A, when speed be greater than 8km/h and engine speed it is low
When 1150r/min, the gear that sends is the vehicle current shift gear that subtracts one in limit stop control CAN message TC1；When speed is greater than
When 8km/h and engine speed are higher than 1700r/min, need first to compare vehicle current shift and a gear is added to keep off with the limitation received
The size of position is sent out in limit stop control CAN message TC1 if vehicle current shift adds a gear to be more than or equal to the limitation gear received
The gear sent is the limitation gear received；When speed is greater than 8km/h and engine speed is higher than 1700r/min, if vehicle
Current shift adds a gear to be less than the limitation gear received, and the gear sent in limit stop control CAN message TC1 is that vehicle works as front
Position plus a gear.
Automatic gear-box is in automatic catch mode A, will lead to engine speed rising during downshift, if downshift movement does not have
There is a completion and engine speed when being more than 1700r/min, it may appear that trip stop, the situation of gear confusion, therefore to guarantee to have dropped
It is that downshift movement after the completion just can be with the logic of upshift after to target gear.
When not receiving gear restricted information or vehicle current shift less than three gears gear lower than the limitation gear received,
Vehicle will exit limit stop mode, be restored to normal plus-minus gear state.
Disclosed above is only the preferred embodiment of the present invention, but the present invention is not limited to this, any this field
What technical staff can think does not have creative variation, and without departing from the principles of the present invention made by several improvement and
Retouching, should all be within the scope of the present invention.
Claims (3)
1. a kind of gear method for limiting suitable for heavy AMT vehicle, it is characterised in that: it the following steps are included:
Step 1): receiving gear and limit CAN bus information data, and reads limitation gear value；
Step 2): judging whether current vehicle gear is more than or equal to the gear value of three gear lower than limitation gear, if it is,
Step 3) is gone to, step 1) is otherwise gone to；
Step 3): vehicle sends limit stop and controls information TC1, and information sends A/M mode and P/E pattern information, hair based on the received
Sending gear is the gear value received；
Step 4): judging whether P/E key is pressed, if it is, going to step 41, otherwise goes to step 5；
Step 41): it sends TC1 information and switches P/E mode, and go to step 5；
Step 5): judging whether A/M key is pressed, if it is, going to step 51, otherwise goes to step 6；
Step 51): it sends TC1 information and switches A/M mode, and go to step 6；
Step 6): judge whether present mode is manual gear pattern, if it is step 8 is gone to, otherwise goes to step 7；
Step 7): it determines that present mode is automatic gear pattern, and goes to step 71；
Step 71): judging whether neutral gear key is pressed, if it is, going to step 72, otherwise goes to step 73；
Step 72): neutral gear request is sent, and goes to step 9；
Step 73): judging whether to pull back handle downshift, if it is step 74 is gone to, otherwise goes to step 75；
Step 74): gear request that transmission gear, that is, current shift subtracts one, and go to step 9；
Step 75): judging whether pushing handle forward, if it is goes to step 76, otherwise, goes to step 9；
Step 76): judge whether otherwise turn less than limitation gear value if it is, going to step 77 after current shift adds a gear
To step 78；
Step 77): it sends gear, that is, current shift and a gear is added to request, and go to step 9；
Step 78): limitation gear request is sent, and goes to step 9；
Step 8): judging whether neutral gear key is pressed, if it is, going to step 81, otherwise goes to step 82；
Step 81): neutral gear request is sent, and goes to step 9；
Step 82): judge whether to pull back handle downshift, if it is, going to step 83, otherwise go to step 84；
Step 83): gear request that transmission gear, that is, current shift subtracts one, and go to step 9；
Step 84): judge whether that pushing handle adds gear forward, if it is goes to step 85, otherwise goes to step 9；
Step 85): judge that current shift adds whether a gear is less than limitation gear, if it is, going to step 86, otherwise go to step
Rapid 87；
Step 86): it sends gear, that is, current shift and a gear is added to request, and go to step 9；
Step 87): limitation gear request is sent, and goes to step 9；
Step 9): judging whether current shift is more than or equal to three gear lower than limitation gear value, if it is, step 4 is gone to,
Otherwise step 10 is gone to；
Step 10): A/M mode does not control, P/E mode does not control, does not send limit stop control information TC1；Go to step 1.
2. a kind of gear method for limiting suitable for heavy AMT vehicle according to claim 1, it is characterised in that: described
Step 73 further includes following judgment criteria:
Whether transmitter revolving speed is lower than 1150r/min, pulls back handle or transmitter revolving speed lower than 1150r/min if met
In either condition, then go to step 74, if be not satisfied, go to step 75.
3. a kind of gear method for limiting suitable for heavy AMT vehicle according to claim 1 or 2, it is characterised in that: described
Step 75 further include following judgment criteria:
Whether transmitter revolving speed is higher than 1700r/min and speed is greater than 8km/h, adds gear if meeting pushing handle forward or starts
Machine revolving speed is higher than 1700r/min and speed is greater than 8km/h, and any of two conditions then go to step 76, otherwise go to step
Rapid 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710349284.9A CN106958649B (en) | 2017-05-17 | 2017-05-17 | A kind of gear method for limiting suitable for heavy AMT vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710349284.9A CN106958649B (en) | 2017-05-17 | 2017-05-17 | A kind of gear method for limiting suitable for heavy AMT vehicle |
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| Publication Number | Publication Date |
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| CN106958649A CN106958649A (en) | 2017-07-18 |
| CN106958649B true CN106958649B (en) | 2019-02-15 |
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| CN111043300A (en) * | 2020-01-14 | 2020-04-21 | 中国重汽集团济南动力有限公司 | Gear shifting control method for AMT sliding sleeve of commercial vehicle |
Citations (6)
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|---|---|---|---|---|
| EP0246353A1 (en) * | 1986-05-22 | 1987-11-25 | Audi Ag | Actuating device for an automatic gearbox in an automotive vehicle |
| US6085137A (en) * | 1996-10-25 | 2000-07-04 | Kabushikikaisha Equos Research | Vehicle control device |
| CN102792071A (en) * | 2010-03-01 | 2012-11-21 | 丰田自动车株式会社 | Gear shift indicator |
| EP2584227A1 (en) * | 2010-05-14 | 2013-04-24 | Nissan Motor Co., Ltd | Controller for taking measures against abnormal shift upon starting motor-driven vehicle |
| CN103269893A (en) * | 2010-12-27 | 2013-08-28 | 株式会社渥美精栈 | Shifting apparatus for automatic transmission |
| CN103299108A (en) * | 2011-10-13 | 2013-09-11 | 丰田自动车株式会社 | Vehicular control apparatus |
-
2017
- 2017-05-17 CN CN201710349284.9A patent/CN106958649B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0246353A1 (en) * | 1986-05-22 | 1987-11-25 | Audi Ag | Actuating device for an automatic gearbox in an automotive vehicle |
| US6085137A (en) * | 1996-10-25 | 2000-07-04 | Kabushikikaisha Equos Research | Vehicle control device |
| CN102792071A (en) * | 2010-03-01 | 2012-11-21 | 丰田自动车株式会社 | Gear shift indicator |
| EP2584227A1 (en) * | 2010-05-14 | 2013-04-24 | Nissan Motor Co., Ltd | Controller for taking measures against abnormal shift upon starting motor-driven vehicle |
| CN103269893A (en) * | 2010-12-27 | 2013-08-28 | 株式会社渥美精栈 | Shifting apparatus for automatic transmission |
| CN103299108A (en) * | 2011-10-13 | 2013-09-11 | 丰田自动车株式会社 | Vehicular control apparatus |
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| CN106958649A (en) | 2017-07-18 |
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