CN106842028B - The hot-line self-checking up method of AMT control system shift-selecting and changing actuating mechanism - Google Patents
The hot-line self-checking up method of AMT control system shift-selecting and changing actuating mechanism Download PDFInfo
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- CN106842028B CN106842028B CN201710175430.0A CN201710175430A CN106842028B CN 106842028 B CN106842028 B CN 106842028B CN 201710175430 A CN201710175430 A CN 201710175430A CN 106842028 B CN106842028 B CN 106842028B
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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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Abstract
The invention discloses a kind of hot-line self-checking up method of AMT control system shift-selecting and changing actuating mechanism, this method is after vehicle powers on, by to drive range Transducer fault detection, the energization of shift motor and step electric machine, and according to the variation of the size of its electric current and shift fork position, judge whether self-test passes through, when self-test passes through and self-test does not pass through, prompted, self-test does not pass through or self-test stops the output of motor duty ratio after the completion, this completes the power-on self-tests to AMT shift-selecting and changing actuating mechanism for automatic speed transmission, ensure 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 system choosing and changes
Keep off the hot-line self-checking up method of executing agency.
Background technique
For car AMT automatic mechanical transmission as a kind of automatic transmission scheme, its structure is familiar.This
Class transmission system is developed on the basis of manual transmission, and gear shifting structure and the clutch of manual transmission are remained
Device.And manipulate manual transmission and need stepping on clutch, gear is selected, is just controlled by speed changer computer TCU in AMT
Automatic controller go to complete.
In the prior art, part AMT Transmission System executing agency uses motor driven.Block selecting and shift execution machine
Structure respectively has a driving motor, adjusts the size of shifting power by controlling the duty ratio output of driving motor, control choosing is changed
Gear moves, and realizes block selecting gearshift function.
AMT automatic transmission control system needs to fully ensure that speed changer as the brain of entire Transmission System
The operational safety of system.It powers in vehicle, after TCU is powered on, before shift-selecting and changing actuating mechanism movement, needs to executing agency's electricity
Machine carries out power-on self-test.In the unsanctioned situation of power-on self-test, executing agency is not allowed to continue to execute shifting movement, to protect
Demonstrate,prove the safety of whole system.
But at present home and overseas in the prior art and there is no being powered on to AMT electric-control system executing agency
Self checking method.
Summary of the invention
Object of the present invention is to propose a kind of hot-line self-checking up method of AMT control system shift-selecting and changing actuating mechanism, pass through the party
Method can detect whether executing agency's motor is normal, if the functional requirement for meeting transmission system shifting guarantees system
Safety.
The present invention solves technical problem and adopts the following technical scheme that a kind of the upper of AMT control system shift-selecting and changing actuating mechanism
Electric self checking method, the AMT control system gear shift mechanism includes step electric machine and shift motor comprising:
S10, make vehicle electric by key, TCU is powered on, and handle is waited to be placed in neutral gear position；When handle is placed in neutral gear position,
Then follow the steps S20；
S20, fault detection 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 is without failure, step S30 is executed；
S30, shift motor successively issue duty ratio to positive and negative both direction, and the period of duty ratio and duty ratio size are preparatory
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 dials
When pitching change in location more than setting value, it is determined as that power-on self-test does not pass through, otherwise, executes step S40；
S40, block selecting motor successively issue duty ratio to positive and negative both direction, and the period of duty ratio and duty ratio size are preparatory
Setting；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 dials
When pitching change in location more than setting value, it is determined as that power-on self-test does not pass through, otherwise, is judged as that self-test passes through；
S50, stop the output of motor duty ratio.
Optionally, the S30 specifically:
S301, shift motor execute the duty ratio in positive two periods, and the setting of the duty ratio will make 3 softwares hold
Shift fork position is not enough in the row period to change；
S302, the size of current and shift fork change in location for monitoring shift motor, when the electric current of shift motor is higher than setting
When value or shift fork change in location are more than setting value, it is determined as that power-on self-test does not pass through, otherwise, executes step S303；
S303, shift motor execute the duty ratio in reversed two periods；
S304, the size of current and shift fork change in location for monitoring shift motor, when the electric current of shift motor is higher than setting
When value or shift fork change in location are more than setting value, it is determined as that power-on self-test does not pass through, otherwise, executes step 40.
Optionally, the S40 specifically:
S401, block selecting motor execute the duty ratio in positive two periods, and the setting of the duty ratio will make 3 softwares hold
Shift fork position is not enough in the row period to change；
S402, the size of current and shift fork change in location for monitoring block selecting motor, when the electric current of block selecting motor is higher than setting
When value or shift fork change in location are more than setting value, it is determined as that power-on self-test does not pass through, otherwise, executes step S403；
S403, block selecting motor execute the duty ratio in reversed two periods；
S404, the size of current and shift fork change in location for monitoring block selecting motor, when the electric current of block selecting motor is higher than setting
When value or shift fork change in location are more than setting value, it is determined as that power-on self-test does not pass through, otherwise, is judged as that self-test passes through.
The invention has the following beneficial effects: the present invention after vehicle powers on, by examining to drive range sensor fault
It surveys, the energization of shift motor and step electric machine, and according to the variation of the size of its electric current and shift fork position, whether judges self-test
Pass through, when self-test passes through and self-test does not pass through, prompted, self-test does not pass through or self-test stops motor duty ratio after the completion
Output, this completes the power-on self-tests to AMT shift-selecting and changing actuating mechanism for automatic speed transmission, ensure that the safety of system.
Detailed description of the invention
Fig. 1 is the flow chart of the hot-line self-checking up method of AMT control system shift-selecting and changing actuating mechanism；
Specific embodiment
Technical solution of the present invention is further elaborated below with reference to examples and drawings.
Embodiment 1
A kind of hot-line self-checking up method of AMT control system 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 system shifting executes machine
Structure uses motor-driven form, i.e. block selecting and gear shifting actuating mechanism respectively has a driving motor, passes through control driving motor
Duty ratio exports to adjust the size of shifting power, and shifting function is realized in control shifting displacement.
The described method includes:
Key electricity (by key vehicle being powered on) on S10, vehicle, TCU is powered on, and handle is waited to be placed in neutral gear position.
When handle is placed in neutral gear position, then process of self-test is executed, that is, execute step S20；When vehicle is in neutral gear shape
State, and when upper key electricity, it 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 is waited, handle, which is placed in neutral gear position, can just carry out power-on self-test process.
S20, fault detection 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 do not pass through；When judgement is selected
When gearshift position sensor is without failure, step S30 is executed.
S30, shift motor successively issue duty ratio to positive and negative both direction, and the period of duty ratio and duty ratio size are preparatory
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 dials
When pitching change in location more than setting value, it is determined as that power-on self-test does not pass through, otherwise, executes step S40.
S40, block selecting motor successively issue duty ratio to positive and negative both direction, and the period of duty ratio and duty ratio size are preparatory
Setting；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 dials
When pitching change in location more than setting value, it is determined as that power-on self-test does not pass through, otherwise, is judged as that self-test passes through.
S50, stop the output of motor duty ratio.
In the present embodiment, the S30 specifically:
S301, shift motor execute the duty ratio in positive two periods, and the setting of the duty ratio wants smaller, and guarantees
Shift fork position is not enough in 3 softwares execution periods to change.The duty cycle number of shifting motor is less than
In 3 execution periods, such as two periods.
S302, the size of current and shift fork change in location for monitoring shift motor, when the electric current of shift motor is higher than setting
When value or shift fork change in location are more than setting value, it is determined as that power-on self-test does not pass through, otherwise, executes step S303.
S303, shift motor execute the duty ratio in reversed two periods.
S304, the size of current and shift fork change in location for monitoring shift motor, when the electric current of shift motor is higher than setting
When value or shift fork change in location are more than setting value, it is determined as that power-on self-test does not pass through, otherwise, executes step 40.
Similarly, the S40 specifically:
S401, block selecting motor execute the duty ratio in positive two periods, and the setting of the duty ratio wants smaller, and guarantees
Shift fork position is not enough in 3 softwares execution periods to change.The duty cycle number of block selecting motor is less than
In 3 execution periods, such as two periods.
S402, the size of current and shift fork change in location for monitoring block selecting motor, when the electric current of block selecting motor is higher than setting
When value or shift fork change in location are more than setting value, it is determined as that power-on self-test does not pass through, otherwise, executes step S403.
S403, block selecting motor execute the duty ratio in reversed two periods.
S404, the size of current and shift fork change in location for monitoring block selecting motor, when the electric current of block selecting motor is higher than setting
When value or shift fork change in location are more than setting value, it is determined as that power-on self-test does not pass through, otherwise, is judged as that self-test passes through.
The present invention is after vehicle powers on, by drive range Transducer fault detection, shift motor and step electric machine
It is powered, and according to the variation of the size of its electric current and shift fork position, judges whether self-test passes through, when self-test passes through with self-test not
By when, prompted, self-test do not pass through or self-test after the completion of stop motor duty ratio output, this completes to AMT from
The power-on self-test of dynamic gear selecting gear shifting actuating mechanism, ensure that the safety of system.
The sequencing of above embodiments is not only for ease of description, represent the advantages or disadvantages of the embodiments.
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
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (1)
1. a kind of hot-line self-checking up method of AMT control system shift-selecting and changing actuating mechanism, the AMT control system gear shift mechanism packet
Include step electric machine and shift motor characterized by comprising
S10, make vehicle electric by key, TCU is powered on, and handle is waited to be placed in neutral gear position；When handle is placed in neutral gear position, then hold
Row S20；
S20, fault detection is carried out to shifting position sensor, when judging that shifting position sensor breaks down, then directly
It is informed of a case and accuses power-on self-test and do not pass through；When judging that shifting position sensor is without failure, S30 is executed；
S30, shift motor successively issue duty ratio to positive and negative both direction, and period and the duty ratio size of duty ratio are set in advance
It is fixed, 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 shift fork
When change in location is more than setting value, it is determined as that power-on self-test does not pass through, otherwise, executes S40；
S40, block selecting motor successively issue duty ratio to positive and negative both direction, and period and the duty ratio size of duty ratio are 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 is more than setting value, it is determined as that power-on self-test does not pass through, otherwise, is judged as that self-test passes through；
S50, stop the output of motor duty ratio；
Wherein, the S30 specifically:
S301, shift motor execute the duty ratio in positive two periods, and the setting of the duty ratio will make 3 softwares execute week
Shift fork position is not enough in phase to change；
S302, monitor shift motor size of current and shift fork change in location, when shift motor electric current be higher than setting value or
When shift fork change in location is more than setting value, it is determined as that power-on self-test does not pass through, otherwise, executes S303；
S303, shift motor execute the duty ratio in reversed two periods；
S304, monitor shift motor size of current and shift fork change in location, when shift motor electric current be higher than setting value or
When shift fork change in location is more than setting value, it is determined as that power-on self-test does not pass through, otherwise, executes S40；
Wherein, the S40 specifically:
S401, block selecting motor execute the duty ratio in positive two periods, and the setting of the duty ratio will make 3 softwares execute week
Shift fork position is not enough in phase to change；
S402, monitor block selecting motor size of current and shift fork change in location, when block selecting motor electric current be higher than setting value or
When shift fork change in location is more than setting value, it is determined as that power-on self-test does not pass through, otherwise, executes S403；
S403, block selecting motor execute the duty ratio in reversed two periods；
S404, monitor block selecting motor size of current and shift fork change in location, when block selecting motor electric current be higher than setting value or
When shift fork change in location is more than setting value, it is determined as that power-on self-test does not pass through, otherwise, is judged as that self-test passes through.
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| 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 | A method and system for detecting the running fault of a dual-stream transmission vehicle |
| CN115453239A (en) * | 2022-08-30 | 2022-12-09 | 江苏汇智高端工程机械创新中心有限公司 | Fully automatic gearbox solenoid valve power-on self-test control method and control system |
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| CN103175685A (en) * | 2013-03-06 | 2013-06-26 | 广州孔辉汽车科技有限公司 | Drive motor and AMT (automated mechanical transmission) integration test platform and method for electric vehicles |
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2017
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|---|---|---|---|---|
| US5655408A (en) * | 1993-03-30 | 1997-08-12 | Fuji Jukogyo Kabushiki Kaisha | Failure detecting system and method for automatic transmission |
| CN103175685A (en) * | 2013-03-06 | 2013-06-26 | 广州孔辉汽车科技有限公司 | Drive motor and AMT (automated mechanical transmission) integration test platform and method for electric vehicles |
| CN104534081A (en) * | 2014-12-17 | 2015-04-22 | 遵义天义利威机电有限责任公司 | Electric vehicle shift-by-wire control system and control method thereof |
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