CN106842028A - The hot-line self-checking up method of AMT control system shift-selecting and changing actuating mechanisms - Google Patents
The hot-line self-checking up method of AMT control system shift-selecting and changing actuating mechanisms Download PDFInfo
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- CN106842028A CN106842028A CN201710175430.0A CN201710175430A CN106842028A CN 106842028 A CN106842028 A CN 106842028A CN 201710175430 A CN201710175430 A CN 201710175430A CN 106842028 A CN106842028 A CN 106842028A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
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- General Physics & Mathematics (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention discloses a kind of hot-line self-checking up method of AMT control systems shift-selecting and changing actuating mechanism, this method is after electricity on vehicle, by to drive range Transducer fault detection, the energization of shift motor and step electric machine, and the change of the size and shift fork position according to its electric current, judge whether self-inspection passes through, when self-inspection with self-inspection by not passing through, pointed out, self-inspection do not pass through or self-inspection after the completion of stop motor dutycycle and export, this completes the power-on self-test to AMT shift-selecting and changing actuating mechanism for automatic speed transmission, it is ensured that the safety of system.
Description
Technical field
The invention belongs to a kind of automatic control technology field of AMT automatic transmission, it is related to a kind of AMT control systems choosing to change
Keep off the hot-line self-checking up method of executing agency.
Background technology
Car AMT automatic mechanical transmissions are used as a kind of automatic transmission scheme, and its structure is familiar.This
Class transmission system is developed on the basis of manual transmission, remains gear shifting structure and the clutch of manual transmission
Device.And manipulating manual transmission needs the steps such as stepping on clutch, selection gear, just controlled by speed changer computer TCU in AMT
Automatic controller go complete.
In the prior art, part AMT Transmission Systems executing agency is driven using motor.Block selecting and gearshift execution machine
Structure respectively has a motor, and the size of shifting power is adjusted by controlling the dutycycle of motor to export, and control choosing is changed
Gear is moved, and realizes block selecting gearshift function.
AMT automatic transmission control systems, as the brain of whole Transmission System, it is necessary to fully ensure that speed changer
The operation safety of system.The electricity on vehicle, after the upper electricity of TCU, it is necessary to executing agency's electricity before shift-selecting and changing actuating mechanism action
Machine carries out power-on self-test.In the case of power-on self-test is unsanctioned, does not allow executing agency to continue executing with shifting and act, to protect
Demonstrate,prove the safety of whole system.
But, current home and overseas in the prior art and in the absence of carrying out upper electricity to AMT electric-control systems executing agency
Self checking method.
The content of the invention
The present invention seeks to propose a kind of hot-line self-checking up method of AMT control systems shift-selecting and changing actuating mechanism, by the party
Method, can detect whether executing agency's motor is normal, if meet the functional requirement of transmission system shifting, it is ensured that system
Safety.
The present invention solves technical problem and adopts the following technical scheme that：A kind of AMT control systems shift-selecting and changing actuating mechanism it is upper
Electric self checking method, the AMT control systems gear shift mechanism includes step electric machine and shift motor, and it includes：
S10, made by key vehicle electricity, TCU it is upper electricity, wait handle be placed in neutral gear position；When handle is placed in neutral gear position,
Then perform step S20；
S20, fault detect is carried out to shifting position sensor, when judging that shifting position sensor breaks down,
Then directly report power-on self-test does not pass through；When judging that shifting position sensor does not break down, step S30 is performed；
S30, shift motor send dutycycle to positive and negative both direction successively, and the cycle of dutycycle is advance with dutycycle size
Setting, and the size of current and shift fork change in location of shift motor are monitored, when the electric current of shift motor is higher than setting value or is dialled
When fork change in location exceedes setting value, it is judged to that power-on self-test does not pass through, otherwise, performs step S40；
S40, block selecting motor send dutycycle to positive and negative both direction successively, and the cycle of dutycycle is advance with dutycycle size
Setting；And monitor the size of current and shift fork change in location of block selecting motor, when block selecting motor electric current is higher than setting value or dials
When fork change in location exceedes setting value, it is judged to that power-on self-test does not pass through, otherwise, is judged as that self-inspection passes through；
S50, the dutycycle output of stopping motor.
Optionally, the S30 is specially：
S301, shift motor perform positive two dutycycles in cycle, and the setting of the dutycycle will cause that 3 softwares are held
Shift fork position is not enough in line period to change；
The size of current and shift fork change in location of S302, monitoring shift motor, when the electric current of shift motor is higher than setting
When value or shift fork change in location exceed setting value, it is judged to that power-on self-test does not pass through, otherwise, performs step S303；
S303, shift motor perform the dutycycle in reverse two cycles；
The size of current and shift fork change in location of S304, monitoring shift motor, when the electric current of shift motor is higher than setting
When value or shift fork change in location exceed setting value, it is judged to that power-on self-test does not pass through, otherwise, performs step 40.
Optionally, the S40 is specially：
S401, block selecting motor perform positive two dutycycles in cycle, and the setting of the dutycycle will cause that 3 softwares are held
Shift fork position is not enough in line period to change；
The size of current and shift fork change in location of S402, monitoring block selecting motor, when the electric current of block selecting motor is higher than setting
When value or shift fork change in location exceed setting value, it is judged to that power-on self-test does not pass through, otherwise, performs step S403；
S403, block selecting motor perform the dutycycle in reverse two cycles；
The size of current and shift fork change in location of S404, monitoring block selecting motor, when the electric current of block selecting motor is higher than setting
When value or shift fork change in location exceed setting value, it is judged to that power-on self-test does not pass through, otherwise, is judged as that self-inspection passes through.
The present invention has the advantages that：The present invention is examined after electricity on vehicle by drive range sensor fault
Whether the change of survey, the energization of shift motor and step electric machine, and the size and shift fork position according to its electric current, judge self-inspection
Pass through, when self-inspection by and self-inspection not by when, pointed out, self-inspection do not pass through or self-inspection after the completion of stop motor dutycycle
Output, this completes the power-on self-test to AMT shift-selecting and changing actuating mechanism for automatic speed transmission, it is ensured that the safety of system.
Brief description of the drawings
Fig. 1 is the flow chart of the hot-line self-checking up method of AMT control system shift-selecting and changing actuating mechanisms；
Specific embodiment
Technical scheme is further elaborated with reference to embodiment and accompanying drawing.
Embodiment 1
A kind of hot-line self-checking up method of AMT control systems shift-selecting and changing actuating mechanism is present embodiments provided, i.e., a kind of AMT is certainly
The hot-line self-checking up method of dynamic control system of speed variator shift-selecting and changing actuating mechanism, wherein, the AMT control systems shifting performs machine
Structure respectively has a motor using motor-driven form, i.e. block selecting and gear shifting actuating mechanism, by controlling motor
Dutycycle exports to adjust the size of shifting power, controls shifting displacement, realizes shifting function.
Methods described includes：
Key electricity (by key so that electric on vehicle) on S10, vehicle, the upper electricity of TCU waits handle to be placed in neutral gear position.
When handle is placed in neutral gear position, then process of self-test is performed, that is, perform step S20；When vehicle is in neutral shape
State, and during upper key electricity, can directly carry out power-on self-test process；If vehicle is in non-neutral position state, when upper key electricity, need
Driver's brake pedal, handle is waited to be placed in neutral gear position and can just carry out power-on self-test process.
S20, fault detect is carried out to shifting position sensor, when judging that shifting position sensor breaks down,
Such as sensor shorted to earth, to power supply short circuit, open sensor etc., then directly report power-on self-test does not pass through；When judgement is selected
When gearshift position sensor does not break down, step S30 is performed.
S30, shift motor send dutycycle to positive and negative both direction successively, and the cycle of dutycycle is advance with dutycycle size
Setting, and the size of current and shift fork change in location of shift motor are monitored, when the electric current of shift motor is higher than setting value or is dialled
When fork change in location exceedes setting value, it is judged to that power-on self-test does not pass through, otherwise, performs step S40.
S40, block selecting motor send dutycycle to positive and negative both direction successively, and the cycle of dutycycle is advance with dutycycle size
Setting；And monitor the size of current and shift fork change in location of block selecting motor, when block selecting motor electric current is higher than setting value or dials
When fork change in location exceedes setting value, it is judged to that power-on self-test does not pass through, otherwise, is judged as that self-inspection passes through.
S50, the dutycycle output of stopping motor.
In the present embodiment, the S30 is specially：
S301, shift motor perform positive two dutycycles in cycle, and the setting of the dutycycle is smaller, and ensures
Shift fork position is not enough in 3 software execution cycles to change.The duty cycle number of shifting motor is less than
Cycle, such as two cycles are performed in 3.
The size of current and shift fork change in location of S302, monitoring shift motor, when the electric current of shift motor is higher than setting
When value or shift fork change in location exceed setting value, it is judged to that power-on self-test does not pass through, otherwise, performs step S303.
S303, shift motor perform the dutycycle in reverse two cycles.
The size of current and shift fork change in location of S304, monitoring shift motor, when the electric current of shift motor is higher than setting
When value or shift fork change in location exceed setting value, it is judged to that power-on self-test does not pass through, otherwise, performs step 40.
Similarly, the S40 is specially：
S401, block selecting motor perform positive two dutycycles in cycle, and the setting of the dutycycle is smaller, and ensures
Shift fork position is not enough in 3 software execution cycles to change.The duty cycle number of block selecting motor is less than
Cycle, such as two cycles are performed in 3.
The size of current and shift fork change in location of S402, monitoring block selecting motor, when the electric current of block selecting motor is higher than setting
When value or shift fork change in location exceed setting value, it is judged to that power-on self-test does not pass through, otherwise, performs step S403.
S403, block selecting motor perform the dutycycle in reverse two cycles.
The size of current and shift fork change in location of S404, monitoring block selecting motor, when the electric current of block selecting motor is higher than setting
When value or shift fork change in location exceed setting value, it is judged to that power-on self-test does not pass through, otherwise, is judged as that self-inspection passes through.
The present invention on the vehicle after electricity, by drive range Transducer fault detection, shift motor and step electric machine
Be powered, and the size and shift fork position according to its electric current change, judge whether self-inspection passes through, when self-inspection pass through with self-inspection not
By when, pointed out, self-inspection do not pass through or self-inspection after the completion of stop motor dutycycle and export, this completes to AMT from
The power-on self-test of dynamic gear selecting gear shifting actuating mechanism, it is ensured that the safety of system.
The sequencing of above example only for ease of description, the quality of embodiment is not represented.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
Modified with to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (3)
1. a kind of hot-line self-checking up method of AMT control systems shift-selecting and changing actuating mechanism, the AMT control systems gear shift mechanism bag
Include step electric machine and shift motor, it is characterised in that including：
S10, made by key vehicle electricity, TCU it is upper electricity, wait handle be placed in neutral gear position；When handle is placed in neutral gear position, then hold
Row step S20；
S20, fault detect is carried out to shifting position sensor, when judging that shifting position sensor breaks down, then directly
Announcement power-on self-test of being informed of a case does not pass through；When judging that shifting position sensor does not break down, step S30 is performed；
S30, shift motor send dutycycle to positive and negative both direction successively, and cycle and the dutycycle size of dutycycle set in advance
Determine, and monitor the size of current and shift fork change in location of shift motor, when the electric current of shift motor is higher than setting value or shift fork
When change in location exceedes setting value, it is judged to that power-on self-test does not pass through, otherwise, performs step S40；
S40, block selecting motor send dutycycle to positive and negative both direction successively, and cycle and the dutycycle size of dutycycle set in advance
It is fixed；And the size of current and shift fork change in location of block selecting motor are monitored, when the electric current of block selecting motor is higher than setting value or shift fork
When change in location exceedes setting value, it is judged to that power-on self-test does not pass through, otherwise, is judged as that self-inspection passes through；
S50, the dutycycle output of stopping motor.
2. the hot-line self-checking up method of AMT control systems shift-selecting and changing actuating mechanism according to claim 1, it is characterised in that
The S30 is specially：
S301, shift motor perform positive two dutycycles in cycle, and the setting of the dutycycle will cause that 3 softwares perform week
Shift fork position is not enough in phase to change；
The size of current and shift fork change in location of S302, monitoring shift motor, when shift motor electric current higher than setting value or
When shift fork change in location exceedes setting value, it is judged to that power-on self-test does not pass through, otherwise, performs step S303；
S303, shift motor perform the dutycycle in reverse two cycles；
The size of current and shift fork change in location of S304, monitoring shift motor, when shift motor electric current higher than setting value or
When shift fork change in location exceedes setting value, it is judged to that power-on self-test does not pass through, otherwise, performs step 40.
3. the hot-line self-checking up method of AMT control systems shift-selecting and changing actuating mechanism according to claim 2, it is characterised in that
The S40 is specially：
S401, block selecting motor perform positive two dutycycles in cycle, and the setting of the dutycycle will cause that 3 softwares perform week
Shift fork position is not enough in phase to change；
The size of current and shift fork change in location of S402, monitoring block selecting motor, when block selecting motor electric current higher than setting value or
When shift fork change in location exceedes setting value, it is judged to that power-on self-test does not pass through, otherwise, performs step S403；
S403, block selecting motor perform the dutycycle in reverse two cycles；
The size of current and shift fork change in location of S404, monitoring block selecting motor, when block selecting motor electric current higher than setting value or
When shift fork change in location exceedes setting value, it is judged to that power-on self-test does not pass through, otherwise, is judged as that self-inspection passes through.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710175430.0A CN106842028B (en) | 2017-03-22 | 2017-03-22 | The hot-line self-checking up method of AMT control system shift-selecting and changing actuating mechanism |
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| CN201710175430.0A CN106842028B (en) | 2017-03-22 | 2017-03-22 | The hot-line self-checking up method of AMT control system shift-selecting and changing actuating mechanism |
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| CN106842028A true CN106842028A (en) | 2017-06-13 |
| CN106842028B CN106842028B (en) | 2019-09-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108454459A (en) * | 2018-01-26 | 2018-08-28 | 北京新能源汽车股份有限公司 | Gear shifting control method and device and electric automobile |
| CN114194124A (en) * | 2021-12-30 | 2022-03-18 | 合肥工业大学 | Method and system for detecting walking fault of double-flow transmission vehicle |
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2017
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Patent Citations (4)
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| US5655408A (en) * | 1993-03-30 | 1997-08-12 | Fuji Jukogyo Kabushiki Kaisha | Failure detecting system and method for automatic transmission |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108454459A (en) * | 2018-01-26 | 2018-08-28 | 北京新能源汽车股份有限公司 | Gear shifting control method and device and electric automobile |
| CN114194124A (en) * | 2021-12-30 | 2022-03-18 | 合肥工业大学 | Method and system for detecting walking fault of double-flow transmission vehicle |
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| CN106842028B (en) | 2019-09-17 |
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Inventor after: Wu Haixiao Inventor after: Jiang Pengchang Inventor after: Cui Boliang Inventor after: Zhang Yong Inventor after: Zhang Guanghui Inventor before: Zhang Guanghui |
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