CN110566663A - Method for detecting signal clamping stagnation fault of shifting fork position sensor - Google Patents
Method for detecting signal clamping stagnation fault of shifting fork position sensor Download PDFInfo
- Publication number
- CN110566663A CN110566663A CN201810575852.1A CN201810575852A CN110566663A CN 110566663 A CN110566663 A CN 110566663A CN 201810575852 A CN201810575852 A CN 201810575852A CN 110566663 A CN110566663 A CN 110566663A
- Authority
- CN
- China
- Prior art keywords
- shifting fork
- detected
- position sensor
- shifting
- rotating speed
- 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.)
- Granted
Links
Classifications
-
- 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
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
-
- 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
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1208—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures with diagnostic check cycles; Monitoring of failures
-
- 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
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1256—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected
- F16H2061/1272—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected the failing part is a part of the final output mechanism, e.g. shift rods or forks
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
the invention discloses a detection method of a signal jamming fault of a shifting fork position sensor, which is used for a double-clutch transmission; the detection method comprises the following steps: the method comprises the following steps that a vehicle is in a static working condition, and whether the variation of the measured value of a corresponding shifting fork position sensor exceeds a set threshold value or not under the shifting force action of a shifting fork to be measured in a preset time is judged; if yes, prompting that the shifting fork position sensor corresponding to the shifting fork to be detected does not generate signal clamping stagnation faults; and if not, judging whether the shifting fork to be detected is in one of the gears at the two end parts, if so, prompting that the shifting fork position sensor corresponding to the shifting fork to be detected has a signal clamping stagnation fault, and if not, prompting that the shifting fork position sensor corresponding to the shifting fork to be detected does not have the signal clamping stagnation fault. The detection method can detect the signal clamping stagnation fault of the shifting fork position sensor of the vehicle under the static working condition, and avoids the interference of the normal working control of the shifting fork due to the signal clamping stagnation fault of the shifting fork position sensor and the damage to related structural components of the transmission caused by the interference.
Description
Technical Field
The invention relates to the technical field of automobile transmissions, in particular to a method for detecting clamping stagnation faults of a shifting fork position sensor of a double-clutch transmission.
Background
The shift fork assembly system is widely applied to DCT (Dual Clutch Transmission) and is an important component of a vehicle Transmission chain. The DCT can display gear switching through the double-input shafting nested inside and outside and match two output shafting through the double-clutch alternate operation.
The shift fork assembly system includes a shift fork position sensor, a shift fork actuator, a shift fork, etc., wherein a measured value of the shift fork position sensor reflects a position of the shift fork actuator, and the shift fork is controlled based on the measured value of the shift fork position sensor. That is, whether the fork can normally operate depends on whether the fork position sensor normally operates, and therefore, it is necessary to detect a failure of the fork position sensor.
Generally, the faults of the shifting fork position sensor are divided into an electrical fault and a rationality fault, wherein the rationality fault means that a shifting fork position signal transmitted by the shifting fork position sensor does not conform to the actual situation, for example, the shifting fork position signal transmitted by the shifting fork position sensor is kept unchanged all the time under the condition that a certain gear engaging force is applied, and the fault is called a 'clamping stagnation' fault of the shifting fork position sensor signal.
when the clamping stagnation fault occurs to the shifting fork position sensor, normal shifting fork control can be interfered, and certain damage can be caused to transmission hardware, so that the clamping stagnation fault of the shifting fork position sensor is necessary to be detected. However, the conventional detection methods are all based on the static working condition that the vehicle cannot be covered under the moving state of the vehicle.
in view of this, how to detect the signal jamming fault of the shift fork position sensor under the static working condition of the vehicle becomes a technical problem that needs to be solved by those skilled in the art at present.
Disclosure of Invention
The invention aims to provide a detection method for a signal clamping stagnation fault of a shifting fork position sensor, which is used for a double-clutch transmission.
in order to solve the technical problem, the invention provides a method for detecting the signal jamming fault of a shifting fork position sensor, which is used for a double-clutch transmission; the detection method comprises the following steps:
The method comprises the following steps that a vehicle is in a static working condition, and whether the variation of the measured value of a corresponding shifting fork position sensor exceeds a set threshold value or not under the shifting force action of a shifting fork to be measured in a preset time is judged;
If yes, prompting that the shifting fork position sensor corresponding to the shifting fork to be detected does not generate signal clamping stagnation faults;
And if not, judging whether the shifting fork to be detected is in one of the gears at the two end parts, if so, prompting that the shifting fork position sensor corresponding to the shifting fork to be detected has a signal clamping stagnation fault, and if not, prompting that the shifting fork position sensor corresponding to the shifting fork to be detected does not have the signal clamping stagnation fault.
Optionally, the method of determining whether the fork to be measured is in one of the two end gears specifically comprises:
The shifting force applied to the shifting fork to be tested is cancelled, and the shifting transmission is input by the other input shaft;
When the rotating speed of an input shaft where the shifting fork to be detected is located is larger than a first preset threshold value and the output rotating speed is larger than a second preset threshold value, respectively calculating the speed difference of the gear synchronizers at two end parts of the shifting fork to be detected, and if the calculated speed difference is smaller than a set range, enabling the shifting fork to be detected to be located at the end part gear corresponding to the speed difference.
Optionally, the speed difference of the end gear synchronizer of the shifting fork to be measured is: i speed ratio of input shaft rotation speed/end gear of shifting fork to be measured-output rotation speed.
Optionally, the determination condition that the vehicle is in the static operating condition is as follows: and the rotating speed of the input shaft where the shifting fork to be detected is located is less than a third preset threshold value, or the output rotating speed is less than a fourth preset threshold value.
optionally, the first preset threshold is the third preset threshold plus a first hysteresis value, and the second preset threshold is the fourth preset threshold plus a second hysteresis value.
Optionally, the method of determining whether the fork to be measured is in one of the two end gears specifically comprises:
The shifting force applied to the shifting fork to be tested is cancelled, and the shifting transmission is input by the other input shaft;
And judging whether the rotating speed of the input shaft where the shifting fork to be detected is positioned is greater than the rotating speed of the engine or not, and whether the difference value of the rotating speed and the rotating speed of the input shaft exceeds a preset difference value range or not, if so, determining that the shifting fork to be detected is positioned in one of the gears at the two end parts of the shifting fork to be detected.
Optionally, after the rotation speed of the input shaft where the shifting fork to be detected is judged to be greater than the rotation speed of the engine and the difference value between the rotation speed and the rotation speed exceeds the preset difference value range, whether the state duration time exceeds the preset time is further judged, and if yes, the shifting fork to be detected is located in one of the two end gears.
Optionally, the determination condition that the vehicle is in the static operating condition is as follows: and the rotating speed of the input shaft where the shifting fork to be detected is located is less than a third preset threshold value, or the output rotating speed is less than a fourth preset threshold value.
The detection method provided by the invention is used for detecting the signal jamming fault of the shifting fork position sensor and is used for a double-clutch transmission, the detection method is mainly used for detecting that a vehicle is in a static working condition, specifically, when the vehicle is in the static working condition, whether the variation of the measured value of the corresponding shifting fork position sensor exceeds a set threshold value or not under the shifting force of a preset time is judged, theoretically, when the shifting fork is applied with the shifting force, the shifting fork can act under the shifting force under the normal condition, if the variation of the measured value of the corresponding shifting fork position sensor is not monitored to exceed the set threshold value, the shifting fork position sensor corresponding to the shifting fork to be detected is considered to have the risk of the signal jamming fault, then whether the shifting fork to be detected is in one of the two end parts of the shifting fork or not is judged, namely, whether the shifting fork to be detected acts normally under the shifting force is judged, if the shifting fork to be detected is in one of the gears at the two end parts of the shifting fork, the shifting fork to be detected can normally work under the action of the shifting force, so that the corresponding shifting fork position sensor is determined to be not normally reacted, namely, the shifting fork position sensor corresponding to the shifting fork to be detected has a signal jamming fault, otherwise, the shifting fork position sensor corresponding to the shifting fork to be detected has the signal jamming fault.
The detection method can detect the signal clamping stagnation fault of the shifting fork position sensor of the vehicle under the static working condition, and avoids the interference of normal shifting fork control due to the signal clamping stagnation fault of the shifting fork position sensor, thereby avoiding the damage to related hardware components of the transmission caused by the interference of the normal shifting fork control.
Drawings
FIG. 1 is a block flow diagram of a method for detecting a shift fork position sensor signal jamming fault according to an embodiment of the present invention;
Fig. 2 is a block flow diagram of another embodiment of the method for detecting a signal jamming fault of a shift fork position sensor according to the present invention.
Detailed Description
The signal jamming faults of the existing shifting fork position sensors in the shifting fork assembly system are all carried out when a vehicle is in a moving working condition and cannot cover the static working condition of the vehicle, and if the shifting fork position sensors generate the signal jamming faults, the normal working control of shifting forks can be interfered, and meanwhile, related hardware parts of a transmission are possibly damaged, so that the consequences are serious if the shifting fork position sensors generate the signal jamming faults. Therefore, various ways are needed to detect the signal jamming faults of the shifting fork position sensors in various states of the vehicle as much as possible, and based on the detection method, the invention provides a method for detecting the signal jamming faults of the shifting fork position sensors in the static working condition of the vehicle, and the method is used for the double-clutch transmission.
The invention provides a detection method of a signal jamming fault of a shifting fork position sensor, which is used for a double-clutch transmission and comprises the following steps:
The method comprises the following steps that a vehicle is in a static working condition, and whether the variation of the measured value of a corresponding shifting fork position sensor exceeds a set threshold value or not under the shifting force action of a shifting fork to be measured in a preset time is judged;
if yes, prompting that the shifting fork position sensor corresponding to the shifting fork to be detected does not generate signal clamping stagnation faults;
And if not, judging whether the shifting fork to be detected is in one of the gears at the two end parts, if so, prompting that the shifting fork position sensor corresponding to the shifting fork to be detected has a signal clamping stagnation fault, and if not, prompting that the shifting fork position sensor corresponding to the shifting fork to be detected does not have the signal clamping stagnation fault.
The detection method is used for a double-clutch transmission, namely, the detection method is used for detecting the signal jamming fault of a shifting fork position sensor of a shifting fork assembly system in the double-clutch transmission, and is mainly used for detecting the static working condition of a vehicle, specifically, when the vehicle is in the static working condition, the detection method judges whether the variation of the measured value of the corresponding shifting fork position sensor exceeds a set threshold value or not under the action of the shifting force of the shifting fork to be detected in a preset time, theoretically, when the shifting fork is applied with the shifting force, the shifting fork can act under the action of the shifting force, if the variation of the measured value of the corresponding shifting fork position sensor is not monitored to exceed the set threshold value, the shifting fork position sensor corresponding to the shifting fork to be detected is considered to have the risk of the signal jamming fault, and then whether the shifting fork to be detected is in one of two end gears or not is, that is to say, judge this shift fork that awaits measuring under the effect of the power of shifting gears whether normally moves, if this shift fork that awaits measuring is in one of its both ends position, then show that this shift fork that awaits measuring can normally work under the effect of the power of shifting gears to confirm that its shift fork position sensor that corresponds does not normally react, that is to say, the shift fork position sensor that this shift fork that awaits measuring corresponds has taken place the jamming trouble of signal, otherwise, the shift fork position sensor that this shift fork that awaits measuring corresponds is for taking place the jamming trouble of signal.
The detection method can detect the signal clamping stagnation fault of the shifting fork position sensor of the vehicle under the static working condition, and avoids the interference of normal shifting fork control due to the signal clamping stagnation fault of the shifting fork position sensor, thereby avoiding the damage to related hardware components of the transmission caused by the interference of the normal shifting fork control.
it should be particularly emphasized here that, in practical applications, the precondition for detecting the signal sticking fault of the fork position sensor is: and if and only when the shifting fork position sensor and the rotating speed sensor in the system have no electrical fault.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
referring to fig. 1, fig. 1 is a block flow diagram illustrating a method for detecting a signal jamming failure of a shift fork position sensor according to an embodiment of the present invention.
in this embodiment, the detection method includes the steps of:
Step S11, the vehicle is in a static working condition, and a shifting force is applied to the shifting fork to be tested within a preset time;
specifically, the determination condition that the vehicle is in the static working condition is as follows: and the rotating speed of the input shaft where the shifting fork to be detected is located is less than a third preset threshold value, or the output rotating speed is less than a fourth preset threshold value.
It is understood that specific values of the third preset threshold and the fourth preset threshold may be different for different types of dual clutch transmissions, and in practical applications, the specific values may be set according to practical situations, for example, the third preset threshold is about 400rpm, and the fourth preset threshold is about 42 rpm.
the third preset threshold is the minimum rotating speed of the input shaft which can be recognized by the controller, and the minimum rotating speed can be the rotating speed determined by considering the sensitivity of the rotating speed sensor and the resolution and the error of the controller; the fourth preset threshold is the minimum rotation speed of the output shaft that can be recognized by the controller, and the minimum rotation speed may also be the rotation speed determined by considering the sensitivity of the rotation speed sensor and the resolution and error of the controller.
It should be noted that the shift fork to be measured here is actually the shift fork currently in gear. The output rotational speed referred to herein is the rotational speed that the transmission ultimately outputs and is not repeated hereafter.
Step S12, judging whether the variation of the measured value of the shifting fork position sensor corresponding to the shifting fork to be measured exceeds a set threshold value; if yes, prompting that the shifting fork position sensor corresponding to the shifting fork to be detected does not generate signal clamping stagnation fault, otherwise, entering the step S13;
The preset time and the set threshold in this step can be set according to actual conditions, and generally, it can be understood that the preset time is the time required for a normal gear engaging process, and the set threshold can be about 0.1 mm.
under the normal condition, the shift fork is under receiving the power of shifting, can switch to one of its both ends gear, also be the completion of putting into gear, the shift fork position can change, if detect the change volume of its corresponding shift fork position sensor 'S measured value this moment and do not exceed and set for the threshold value, then think that this shift fork position sensor has the risk of signal jamming trouble, can understand, the change volume of shift fork position sensor' S measured value does not exceed and sets for the threshold value probably the shift fork does not realize actually putting into gear the operation and leads to, also can be because shift fork position sensor has really taken place signal jamming trouble, the shift fork has actually put into gear and puts in place, so, next step S13 specifically judges whether the shift fork normally acts.
Step S13, canceling the shifting force applied to the shifting fork to be tested, and switching the transmission to be input by the other input shaft;
Detecting that the rotating speed of an input shaft of the shifting fork to be detected is greater than a first preset threshold value, and after the output rotating speed is greater than a second preset threshold value, respectively calculating the speed difference of gear synchronizers at two end parts of the shifting fork to be detected; judging whether the calculated speed difference is smaller than a set range, if so, indicating that the shifting fork to be detected is in an end gear corresponding to the speed difference, and prompting a shifting fork position sensor corresponding to the shifting fork to be detected to generate a signal clamping stagnation fault; if not, the shifting fork to be detected is in the middle position, and the shifting fork position sensor corresponding to the shifting fork to be detected is prompted to have no signal clamping stagnation fault.
specifically, when setting, the first preset threshold may be a first hysteresis value added to the third preset threshold, where the first hysteresis value may be calibrated according to a project requirement, for example, 100rpm, so that the first preset threshold is 500rpm, and the second preset threshold may also be a second hysteresis value added to the fourth preset threshold, where the second hysteresis value may be calibrated according to a project requirement, for example, 50rpm, so that the second preset threshold is 92 rpm. Of course, in application, the adjustment can be carried out according to the actual situation.
It should be noted that, for each fork, the gear ratio of the two end gears is different, and in actual setting, the setting range can be set up according to each fork.
It should be appreciated that the dual clutch transmission has two dual input shaft systems nested inside and outside, wherein one input shaft is matched with odd gears, the other input shaft is matched with even gears and reverse gears, and power can be input from one of the two input shafts. Obviously, the other input shaft referred to above is different from the input shaft on which the fork to be measured is located.
after power is input by the other input shaft, when the fact that the rotating speed of the input shaft where the shifting fork to be detected is located is larger than a first preset threshold and the output rotating speed is larger than a second preset threshold is detected, speed differences of gear synchronizers at two end parts of the shifting fork to be detected are calculated respectively to judge the current position of the shifting fork to be detected, namely whether the shifting fork to be detected normally acts after the shifting force is applied is judged.
after the shifting fork to be tested is shifted in place, the speed difference of the synchronizer corresponding to the gear should be smaller than the set range, so that whether the shifting fork to be tested is shifted in place can be determined by comparing the calculated speed difference with the set range.
It will be understood that there are two end gears for each fork, and for one of the end gears, the speed difference of the synchronizer can be calculated as follows: and dividing the rotating speed of the input shaft where the shifting fork to be detected is positioned by the speed ratio of the end gear, subtracting the output rotating speed and taking an absolute value.
therefore, the speed difference of the two end part gear synchronizers of the shifting fork to be detected is obtained through calculation, if one speed difference is smaller than a set range, the shifting fork to be detected is in an end part gear corresponding to the speed difference, namely the shifting fork to be detected normally acts after receiving the gear engaging force, and the corresponding shifting fork position sensor does not normally detect, namely the shifting fork position sensor corresponding to the shifting fork to be detected generates a signal clamping stagnation fault.
If the two calculated speed differences are not smaller than the set range, the shifting fork to be measured is in the middle position, namely the shifting fork to be measured does not act after being subjected to the gear engaging force, the measured value of the corresponding shifting fork position sensor is normal, namely the shifting fork position sensor does not generate signal clamping stagnation faults.
Referring to fig. 2, fig. 2 is a block flow diagram illustrating another embodiment of a method for detecting a signal jamming failure of a shift fork position sensor according to the present invention.
in this embodiment, the detection method includes the steps of:
step S21, the vehicle is in a static working condition, and a shifting force is applied to the shifting fork to be tested within a preset time;
Specifically, the determination condition that the vehicle is in the static working condition is as follows: and the rotating speed of the input shaft where the shifting fork to be detected is located is less than a third preset threshold value, or the output rotating speed is less than a fourth preset threshold value.
it is understood that specific values of the third preset threshold and the fourth preset threshold may be different for different types of dual clutch transmissions, and in practical applications, the specific values may be set according to practical situations, for example, the third preset threshold is about 400rpm, and the fourth preset threshold is about 42 rpm.
S22, judging whether the variation of the measured value of the shifting fork position sensor corresponding to the shifting fork to be measured exceeds a set threshold value, if so, prompting that the shifting fork position sensor corresponding to the shifting fork to be measured does not have a signal clamping stagnation fault, and if not, entering S23;
The preset time and the set threshold in this step can be set according to actual conditions, and generally, it can be understood that the set time is the time required for a normal gear engaging process, and the set threshold can be about 0.1mm, and can be specifically adjusted according to actual conditions.
It can be seen that, in this embodiment, steps S21 and S22 are substantially the same as those in the previous embodiment, and the specific situations are not repeated, so that reference is made to the foregoing description.
Step S23, canceling the shifting force applied to the shifting fork to be tested, and switching the transmission to be input by the other input shaft;
Judging whether the rotating speed of the input shaft where the shifting fork to be detected is larger than the rotating speed of the engine or not, and whether the difference value of the rotating speed and the rotating speed of the input shaft exceeds a preset difference value range or not, if so, judging that the shifting fork to be detected is in one of the two end gears of the shifting fork to be detected, and indicating that the shifting fork to be detected is shifted in place under the action of the previous shifting force and the corresponding shifting fork position sensor does not normally detect, namely prompting that the shifting fork position sensor corresponding to the shifting fork to; otherwise, the shifting fork to be measured is in the middle position, the shifting fork to be measured does not normally act under the action of the previous gear engaging force, the measured value of the corresponding shifting fork position sensor is normal, namely, the shifting fork position sensor does not have signal clamping stagnation faults.
Generally, after the shifting force applied to the shifting fork to be tested is cancelled, the shifted gear is a gear higher than the shifting fork to be tested, for example, the shifting fork to be tested is applied to enable the shifting fork to be hung to a first gear, after the shifting force is cancelled, the shifted gear is a second gear, if the shifting fork to be tested is hung to the first gear under the action of the shifting force, the smaller the gear is, the larger the speed ratio is, the higher the speed ratio is, the larger the speed of the first-gear locking input shaft can be greater than the speed of the engine, and whether the gear to be tested is in one of the gears at two ends can be.
further, after the rotating speed of the input shaft where the shifting fork to be detected is positioned is judged to be larger than the rotating speed of the engine, and the difference value of the rotating speed and the rotating speed exceeds the preset difference value range, whether the state duration time exceeds preset time is further judged, and if yes, the shifting fork to be detected is positioned in one of the two end gears of the shifting fork to be detected.
Therefore, the judgment of the duration time is increased, the occurrence of misjudgment can be avoided, and the reliability of the detection result is improved.
The preset values in step S23 can be set according to actual conditions.
The method for detecting the signal jamming fault of the shifting fork position sensor provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (8)
1. the detection method of the signal jamming fault of the shifting fork position sensor is used for a double-clutch transmission; the detection method is characterized by comprising the following steps:
the method comprises the following steps that a vehicle is in a static working condition, and whether the variation of the measured value of a corresponding shifting fork position sensor exceeds a set threshold value or not under the shifting force action of a shifting fork to be measured in a preset time is judged;
If yes, prompting that the shifting fork position sensor corresponding to the shifting fork to be detected does not generate signal clamping stagnation faults;
And if not, judging whether the shifting fork to be detected is in one of the gears at the two end parts, if so, prompting that the shifting fork position sensor corresponding to the shifting fork to be detected has a signal clamping stagnation fault, and if not, prompting that the shifting fork position sensor corresponding to the shifting fork to be detected does not have the signal clamping stagnation fault.
2. The detecting method according to claim 1, wherein the method for judging whether the shift fork to be detected is in one of the two end gears comprises the following specific steps:
The shifting force applied to the shifting fork to be tested is cancelled, and the shifting transmission is input by the other input shaft;
when the rotating speed of an input shaft where the shifting fork to be detected is located is larger than a first preset threshold value and the output rotating speed is larger than a second preset threshold value, respectively calculating the speed difference of the gear synchronizers at two end parts of the shifting fork to be detected, and if the calculated speed difference is smaller than a set range, enabling the shifting fork to be detected to be located at the end part gear corresponding to the speed difference.
3. The inspection method according to claim 2, wherein the speed difference of the end gear synchronizer of the fork to be inspected is: i speed ratio of input shaft rotation speed/end gear of shifting fork to be measured-output rotation speed.
4. The detection method according to claim 2, wherein the determination condition that the vehicle is in the static condition is: and the rotating speed of the input shaft where the shifting fork to be detected is located is less than a third preset threshold value, or the output rotating speed is less than a fourth preset threshold value.
5. the detection method according to claim 4, wherein the first preset threshold is the third preset threshold plus a first hysteresis value, and the second preset threshold is the fourth preset threshold plus a second hysteresis value.
6. The detecting method according to claim 1, wherein the method for judging whether the shift fork to be detected is in one of the two end gears comprises the following specific steps:
the shifting force applied to the shifting fork to be tested is cancelled, and the shifting transmission is input by the other input shaft;
And judging whether the rotating speed of the input shaft where the shifting fork to be detected is positioned is greater than the rotating speed of the engine or not, and whether the difference value of the rotating speed and the rotating speed of the input shaft exceeds a preset difference value range or not, if so, determining that the shifting fork to be detected is positioned in one of the gears at the two end parts of the shifting fork to be detected.
7. The detecting method according to claim 6, wherein after the rotating speed of the input shaft where the shifting fork to be detected is located is judged to be greater than the rotating speed of the engine, and the difference value between the rotating speed and the rotating speed exceeds a preset difference value range, whether the state duration time exceeds a preset time is further judged, and if yes, the shifting fork to be detected is located in one of the two end gears.
8. The detection method according to claim 6, wherein the determination condition that the vehicle is in the static condition is: and the rotating speed of the input shaft where the shifting fork to be detected is located is less than a third preset threshold value, and the output rotating speed is less than a fourth preset threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810575852.1A CN110566663B (en) | 2018-06-06 | 2018-06-06 | Method for detecting signal clamping stagnation fault of shifting fork position sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810575852.1A CN110566663B (en) | 2018-06-06 | 2018-06-06 | Method for detecting signal clamping stagnation fault of shifting fork position sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110566663A true CN110566663A (en) | 2019-12-13 |
| CN110566663B CN110566663B (en) | 2021-02-02 |
Family
ID=68772755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810575852.1A Active CN110566663B (en) | 2018-06-06 | 2018-06-06 | Method for detecting signal clamping stagnation fault of shifting fork position sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110566663B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114439931A (en) * | 2020-11-02 | 2022-05-06 | 上汽通用汽车有限公司 | Method and system for identifying gear engagement and jamming and automatically re-engaging of synchronizer type gearbox and vehicle |
| CN114738482A (en) * | 2021-01-07 | 2022-07-12 | 广州汽车集团股份有限公司 | Gear selection method and system of dual-clutch transmission and computer equipment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012127413A (en) * | 2010-12-15 | 2012-07-05 | Isuzu Motors Ltd | Automatic control manual-transmission and method of controlling the same |
| CN204114098U (en) * | 2014-05-12 | 2015-01-21 | 天津市松正电动汽车技术股份有限公司 | A kind of shift of transmission final controlling element and speed changer |
| CN104380050A (en) * | 2012-03-23 | 2015-02-25 | 环太平洋工程产品(1987)有限公司 | Gear engagement mechanism for transmissions and related methods |
| CN105179678A (en) * | 2015-08-20 | 2015-12-23 | 安徽江淮汽车股份有限公司 | Failure handling method and system for sensor of automatic double-clutch gearbox |
| CN105492804A (en) * | 2013-08-14 | 2016-04-13 | 沃尔沃卡车集团 | Method for automatic calibration of automatic transmission |
| CN105840810A (en) * | 2016-05-12 | 2016-08-10 | 中国第汽车股份有限公司 | Off-gear judging and treating method for dual-clutch automatic transmission |
| CN107178610A (en) * | 2017-06-14 | 2017-09-19 | 北京新能源汽车股份有限公司 | Gear switching control method and device and automatic gearbox control unit |
| CN108019502A (en) * | 2016-11-02 | 2018-05-11 | 上海汽车集团股份有限公司 | A kind of vehicle shift control method and TCU |
-
2018
- 2018-06-06 CN CN201810575852.1A patent/CN110566663B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012127413A (en) * | 2010-12-15 | 2012-07-05 | Isuzu Motors Ltd | Automatic control manual-transmission and method of controlling the same |
| CN104380050A (en) * | 2012-03-23 | 2015-02-25 | 环太平洋工程产品(1987)有限公司 | Gear engagement mechanism for transmissions and related methods |
| CN105492804A (en) * | 2013-08-14 | 2016-04-13 | 沃尔沃卡车集团 | Method for automatic calibration of automatic transmission |
| CN204114098U (en) * | 2014-05-12 | 2015-01-21 | 天津市松正电动汽车技术股份有限公司 | A kind of shift of transmission final controlling element and speed changer |
| CN105179678A (en) * | 2015-08-20 | 2015-12-23 | 安徽江淮汽车股份有限公司 | Failure handling method and system for sensor of automatic double-clutch gearbox |
| CN105840810A (en) * | 2016-05-12 | 2016-08-10 | 中国第汽车股份有限公司 | Off-gear judging and treating method for dual-clutch automatic transmission |
| CN108019502A (en) * | 2016-11-02 | 2018-05-11 | 上海汽车集团股份有限公司 | A kind of vehicle shift control method and TCU |
| CN107178610A (en) * | 2017-06-14 | 2017-09-19 | 北京新能源汽车股份有限公司 | Gear switching control method and device and automatic gearbox control unit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114439931A (en) * | 2020-11-02 | 2022-05-06 | 上汽通用汽车有限公司 | Method and system for identifying gear engagement and jamming and automatically re-engaging of synchronizer type gearbox and vehicle |
| CN114439931B (en) * | 2020-11-02 | 2023-11-14 | 上汽通用汽车有限公司 | Method and system for identifying engagement jamming of synchronizer type gearbox and automatic re-engagement and vehicle |
| CN114738482A (en) * | 2021-01-07 | 2022-07-12 | 广州汽车集团股份有限公司 | Gear selection method and system of dual-clutch transmission and computer equipment |
| CN114738482B (en) * | 2021-01-07 | 2023-09-01 | 广州汽车集团股份有限公司 | Dual clutch transmission gear selection method, system and computer equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110566663B (en) | 2021-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7827876B2 (en) | Method for controlling, and a control device of, an automated, non-synchromesh multispeed motor vehicle transmission | |
| US6849027B2 (en) | Method and apparatus for diagnosing a malfunction of a clutch actuator | |
| GB2466109A (en) | A method of confirming an output from a sensor in a manual transmission | |
| CN101749125B (en) | A method of inhibiting stop-start control using gear selector position | |
| CN110566663B (en) | Method for detecting signal clamping stagnation fault of shifting fork position sensor | |
| KR101628533B1 (en) | Method for diagnosing failure in dual clutch transmission | |
| CN111102354B (en) | Position learning system for electric gear lever system | |
| GB2466040A (en) | Method of confirming that a manual transmission is in a safe neutral state | |
| US8311715B2 (en) | Motor vehicle transmission and method for monitoring frictional engagement in same in a preset neutral or parking position | |
| CN108223788B (en) | Gear shifting control device and gear shifting control method for gearbox and gearbox | |
| JP3724471B2 (en) | Automatic transmission failure determination device and failure determination method | |
| GB2466188A (en) | Automatic starting and stopping of an engine | |
| US20060069524A1 (en) | Malfunction detector for rotation sensor | |
| CN108869730B (en) | Gear fault diagnosis and processing method | |
| CN112253746B (en) | Double-clutch fault detection method and device and storage medium | |
| US9951863B2 (en) | Transmission | |
| US8355849B2 (en) | Safe clutch position | |
| US10989299B2 (en) | Method and control unit for monitoring a signal of a sensor | |
| KR102181303B1 (en) | Eccentricity compensation method of gear actuator using moving average | |
| KR20120079640A (en) | Fault diagnosis system for neutral switch and method thereof | |
| KR102216612B1 (en) | Method for judging shift intention in 2 pedal e-clutch system | |
| GB2466185A (en) | Method and apparatus for confirming gear engagement state | |
| KR102462610B1 (en) | Apparatus and method for determining gear stages for vehicle | |
| KR100279990B1 (en) | Method for automatic diagnosis of faults when testing synchronous devices of manual transmissions | |
| KR20180073801A (en) | Apparatus for diagnosing speed sensor of double clutch transmission and method thereof |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |