CN115267258A - Method and device for checking measured values of rotational speed of dual clutch transmission and storage medium - Google Patents
Method and device for checking measured values of rotational speed of dual clutch transmission and storage medium Download PDFInfo
- Publication number
- CN115267258A CN115267258A CN202210897496.1A CN202210897496A CN115267258A CN 115267258 A CN115267258 A CN 115267258A CN 202210897496 A CN202210897496 A CN 202210897496A CN 115267258 A CN115267258 A CN 115267258A
- Authority
- CN
- China
- Prior art keywords
- speed
- value
- clutch
- rotating speed
- transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 122
- 238000000034 method Methods 0.000 title claims abstract description 45
- 230000009977 dual effect Effects 0.000 title claims description 22
- 238000012795 verification Methods 0.000 claims abstract description 61
- 238000005259 measurement Methods 0.000 claims abstract description 44
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- 230000009467 reduction Effects 0.000 claims description 4
- 230000007935 neutral effect Effects 0.000 claims description 3
- 238000004590 computer program Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
- G01P21/02—Testing or calibrating of apparatus or devices covered by the preceding groups of speedometers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Transmission Device (AREA)
Abstract
The application relates to a method and a device for checking a rotating speed measured value of a dual-clutch transmission and a storage medium. The method comprises the following steps: taking the rotating speed of an output shaft of the transmission, the speed of a driving wheel and the rotating speed of a clutch corresponding to the current gear information as calibration parameters; converting the measurement value of each checking parameter by taking any one checking parameter as a reference to obtain a corresponding checking value; taking the rotation speed of the output shaft of the transmission or the rotation speed of the clutch as an object to be verified; respectively calculating a first difference value between the rotation speed check value of the object to be checked and the check values of the rest of the check parameters, and a second difference value between the check values of the rest of the check parameters; and determining a measurement value verification result of the object to be verified according to the first difference value and the second difference value. The method verifies the measured value of the object to be verified in a pairwise verification mode, improves the accuracy of the verification result, and provides accurate and effective basic data for vehicle control.
Description
Technical Field
The embodiment of the application relates to the technical field of automobiles, in particular to a method and a device for detecting a rotating speed measured value of a dual-clutch transmission and a storage medium.
Background
The double-clutch transmission is used as a key part in an automobile power system assembly and comprises a clutch and a transmission, and power provided by an engine can be transmitted to a speed reducer through the clutch and the transmission and then transmitted to wheels through the speed reducer, so that the wheels are driven to run.
Generally, the input shaft and the output shaft of the dual clutch transmission are provided with rotation speed sensors for measuring the rotation speed of the clutch and the rotation speed of the output shaft, respectively, and the obtained measurement values are used as basic data for vehicle control. In practical application, when a rotating speed signal output by a rotating speed sensor of the dual-clutch transmission is abnormal, but an electrical related fault does not occur in the rotating speed sensor, the vehicle does not directly report the fault in the using process. At the moment, under the influence of abnormal rotating speed signals, the problem of gear jumping can occur in the driving process of the vehicle, and the driving safety is seriously influenced when the vehicle speed is higher. Therefore, whether the measured values of the clutch rotating speed and the output shaft rotating speed of the double-clutch transmission are credible or not is significant to vehicle control.
Disclosure of Invention
Based on the method, the device and the storage medium for testing the rotating speed measured value of the dual-clutch transmission, which are provided by the embodiment of the application, the credibility of the rotating speed measured value of the clutch and the rotating speed measured value of the output shaft of the dual-clutch transmission can be verified, and accurate and effective basic data can be provided for vehicle control.
In a first aspect, an embodiment of the present application provides a method for verifying a measured rotation speed value of a dual clutch transmission, including:
taking the rotating speed of an output shaft of the transmission, the speed of a driving wheel and the rotating speed of a clutch corresponding to the current gear information as calibration parameters;
converting the measurement value of each checking parameter by taking any one checking parameter as a reference to obtain a corresponding checking value;
taking the rotation speed of the output shaft of the transmission or the rotation speed of the clutch as an object to be verified;
respectively calculating a first difference value between the rotation speed check value of the object to be checked and the check values of the rest of the check parameters, and a second difference value between the check values of the rest of the check parameters;
and determining a measurement value verification result of the object to be verified according to the first difference value and the second difference value.
In a second aspect, an embodiment of the present application provides a device for verifying a rotational speed measurement value of a dual clutch transmission, including:
the first determining module is used for taking the rotating speed of an output shaft of the transmission, the speed of a driving wheel and the rotating speed of a clutch corresponding to the current gear information as calibration parameters;
the conversion module is used for converting the measurement value of each check parameter by taking any check parameter as a reference to obtain a corresponding check value;
the second determination module is used for taking the rotating speed of the transmission output shaft or the rotating speed of the clutch as an object to be verified;
the processing module is used for respectively calculating a first difference value between the rotating speed check value of the object to be checked and the check values of the rest of the check parameters and a second difference value between the check values of the rest of the check parameters;
and the third determining module is used for determining a measured value checking result of the object to be checked according to the first difference value and the second difference value.
In a third aspect, the present embodiments further provide a computer-readable storage medium, on which a computer program is stored, where the program, when executed by a processor, implements the steps of the method for checking a rotational speed measurement value of a dual clutch transmission provided in the first aspect of the present embodiments.
According to the technical scheme provided by the embodiment of the application, the rotating speed of the output shaft of the transmission, the speed of the driving wheel and the rotating speed of the clutch corresponding to the current gear information are used as calibration parameters, any calibration parameter is used as a reference, the measured value of each calibration parameter is converted to obtain the calibration value of each calibration parameter, and in theoretical calculation, each calibration value obtained by converting the measured value of each calibration parameter by using a unified reference is consistent with or very close to the measured value of the calibration parameter selected as the reference, and the probability of problems occurring in two or more calibration parameters is low and can be ignored.
Drawings
FIG. 1 is a schematic power transmission diagram of a dual clutch transmission vehicle provided by an embodiment of the application;
FIG. 2 is a schematic flow chart illustrating a method for verifying rotational speed measurements for a dual clutch transmission according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a dual clutch transmission rotational speed measurement verification apparatus according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a vehicle controller according to an embodiment of the present application.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures.
FIG. 1 is a schematic power transmission diagram of a dual clutch transmission vehicle, wherein, as shown in FIG. 1, the rotational speed from an engine assembly 110 is transmitted to a transmission 122 through a dual clutch 121 in a transmission assembly 120 as the input rotational speed of the transmission 122, i.e. the clutch rotational speed; the rotating speed of the clutch is changed through the gear speed ratio relation of the transmission 122 and then is output through an output shaft 123, namely the rotating speed of the output shaft of the transmission is obtained; the rotation speed of the output shaft of the transmission is transmitted to the wheels 140 through the speed ratio change of the speed reducer 130, and the wheels are driven to run.
In practice, the clutch speed and the transmission output shaft speed can be measured by corresponding speed sensors and used as basic data for vehicle control, and therefore it is important to determine whether the clutch speed measurement and the transmission output shaft speed measurement are reliable. Therefore, the technical scheme provided by the embodiment of the application can be used for verifying the credibility of the measured value of the rotating speed of the clutch and the measured value of the rotating speed of the output shaft of the transmission.
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions in the embodiments of the present application are further described in detail by the following embodiments in combination with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It should be noted that the execution subject of the method embodiments described below may be a dual clutch transmission rotational speed measurement verification device, which may be implemented as part or all of a vehicle controller by software, hardware, or a combination of software and hardware. The following method embodiments are described taking as an example the execution subject is a vehicle controller.
Fig. 2 is a schematic flow chart of a method for verifying a rotational speed measurement of a dual clutch transmission according to an embodiment of the present application, where as shown in fig. 2, the method may include:
s201, using the rotating speed of the output shaft of the transmission, the speed of the driving wheel and the rotating speed of the clutch corresponding to the current gear information as verification parameters.
For a vehicle type matched with the double-clutch transmission, the odd-even shaft gears are not in the same gear when the vehicle runs, so that the corresponding clutch rotating speed needs to be selected as one of the verification parameters based on the current gear information when the rotating speed verification is carried out. Optionally, if the current gear information is an odd gear, the odd clutch speed is used as one of the check parameters. And if the current gear information is an even gear, taking the even clutch rotating speed as one of the verification parameters. For example, when the current gear information is equal to 1 st, 3 rd, 5 th or 7 th gear, the odd shaft may be determined to be the gear shaft, and the odd clutch may be used as one of the checking parameters. When the current gear information is equal to 2, 4 or 8, the even-numbered shaft may be determined to be the gear shaft, and the even-numbered clutch may be used as one of the checking parameters. Meanwhile, the power transmission of the wheels of the dual-clutch transmission also relates to the rotation speed of the output shaft of the transmission and the speed of the driving wheels, so that the rotation speed of the output shaft of the transmission and the speed of the driving wheels are also used as calibration parameters required in the rotation speed calibration process.
S202, taking any one of the verification parameters as a reference, and converting the measurement value of each verification parameter to obtain a corresponding verification value.
In the design process of a vehicle, a vehicle powertrain and a transmission system assembly include a plurality of rotating shafts, such as an engine shaft, a transmission input shaft, a transmission output shaft, a connecting shaft of wheels, and the like, and each shaft often has a different rotating speed due to different functions. Therefore, when the measured value of the rotational speed of the output shaft of the transmission or the measured value of the rotational speed of the clutch is verified by applying the above-mentioned verification parameters, it is necessary to convert the measured values of the verification parameters so that the verification parameters are unified into the same class, thereby ensuring that the measured values of the verification parameters have numerical comparability after conversion.
Therefore, any one of the verification parameters can be selected as a conversion reference, the measurement values of the other selected verification parameters are converted respectively and unified to the verification parameter selected as the reference, and the verification value corresponding to each verification parameter is obtained.
It should be noted that, for the verification parameters selected as the reference, the verification parameters may be calculated according to the following formula 1: the conversion relation of 1 converts the measured value of the selected calibration parameter as the reference to obtain a converted calibration value.
Alternatively, where the speed of the transmission output shaft is selected as the reference, the scaling of the other relevant calibration parameters may be as follows:
for the drive wheel vehicle speed measurement: and determining a verification value of the vehicle speed of the driving wheel according to the measured vehicle speed of the driving wheel, the final reduction ratio of the speed reducer and the radius of the driving wheel.
Specifically, the drive wheel vehicle speed measurement value may be converted based on the following equation 1 or a modification of equation 1:
wherein i is the final reduction ratio of the reducer, s _ wheelseed is the measured value of the speed of the drive wheel, R is the radius of the drive wheel, ncarThe vehicle speed is a check value of the vehicle speed of the driving wheel.
For odd clutch speed measurements: and determining a check value of the odd clutch rotating speed according to the odd clutch rotating speed measured value and the transmission speed ratio.
Specifically, the odd clutch speed measurements may be scaled based on equation 2 or a variation of equation 2 as follows:
wherein n isclt1For check values of odd clutch speeds, s _ clt1speed is the odd clutch speed measured value, iGThe transmission speed ratio is related to the current gear information.
For odd clutch speed measurements: and determining a check value of the even-numbered clutch rotating speed according to the even-numbered clutch rotating speed measured value and the transmission speed ratio.
Specifically, the even clutch speed measurements may be scaled based on equation 3 or a variation of equation 3 below:
wherein n isclt2For check values of odd clutch speeds, s _ clt2speed is the odd clutch speed measured value, iGThe transmission speed ratio is related to the current gear information.
And S203, taking the rotating speed of the output shaft of the transmission or the rotating speed of the clutch as an object to be verified.
In the embodiment, the measured value of the rotation speed of the output shaft of the transmission or the measured value of the rotation speed of the clutch is mainly verified, so that the rotation speed of the output shaft of the transmission or the rotation speed of the clutch can be selected as an object to be verified based on actual needs.
S204, respectively calculating a first difference value between the check value of the object to be checked and the check values of the rest of the check parameters, and a second difference value between the check values of the rest of the check parameters.
After the conversion of each calibration parameter is completed, the calibration value of the object to be calibrated may be subtracted from the calibration values of the remaining calibration parameters to obtain a first difference value, and the calibration values of the remaining calibration parameters may be subtracted from each other to obtain a second difference value.
For example, taking an object to be verified as the rotation speed of the output shaft of the transmission as an example, the verification value of the rotation speed of the output shaft of the transmission and the verification value of the speed of the driving wheel may be subtracted, and the verification value of the rotation speed of the output shaft of the transmission and the verification value of the rotation speed of the clutch may be subtracted, so as to obtain a plurality of first difference values, and the verification value of the speed of the driving wheel and the verification value of the rotation speed of the clutch may be subtracted, so as to obtain a second difference value. If the current gear information is an even gear, the clutch rotating speed is an even clutch rotating speed, namely the difference between the check value of the driving wheel speed and the check value of the odd clutch rotating speed is calculated.
Taking the object to be verified as the rotation speed of the clutch as an example, the difference between the check value of the rotation speed of the clutch and the check value of the rotation speed of the output shaft of the transmission can be made, the difference between the check value of the rotation speed of the clutch and the check value of the speed of the driving wheel can be made to obtain a plurality of first difference values, and the difference between the check value of the rotation speed of the output shaft of the transmission and the check value of the speed of the driving wheel can be made to obtain a second difference value. Similarly, the clutch rotation speed may be determined to be an odd clutch rotation speed or an even clutch rotation speed based on the current gear information, and may be calculated according to the corresponding clutch rotation speed.
S205, determining a measurement value checking result of the object to be checked according to the first difference value and the second difference value.
After the conversion of the foregoing steps, theoretically, the check values of the check parameters should be equal, and therefore, the obtained first difference and second difference should be zero, but in practical applications, there is certainly a difference between the check parameters, and therefore, whether the measurement value of the object to be checked is authentic can be determined according to the first difference and the second difference.
Optionally, the process of S205 may be: and if the first difference value meets the preset condition and the second difference value does not meet the preset condition within the preset time length, determining that the measured value of the object to be verified is not credible.
Optionally, the first difference satisfying the preset condition includes: the first difference values exceed a first preset threshold value and a second preset threshold value; the second preset threshold value is obtained based on a preset rotating speed ratio; the second difference value not meeting the preset condition comprises: the second difference does not exceed at least one of the first preset threshold and the second preset threshold.
Specifically, the first preset threshold and the preset rotation speed ratio are related to the current gear information, that is, the corresponding first preset threshold and the corresponding preset rotation speed ratio can be selected based on the current gear information, and the second preset threshold can be obtained by multiplying the preset rotation speed ratio by the current measurement value of the rotation speed of the transmission output shaft. If the first difference value exceeds a first preset threshold value and a second preset threshold value within the preset time length, the verification result between the other verification parameters and the object to be verified is not passed; if the second difference value does not exceed at least one of the first preset threshold value and the second preset threshold value within the preset time length, it can be shown that the verification results between the remaining verification parameters are passed, and in the process of verifying the measured value of the object to be verified, the measured value of the object to be verified can be determined to be not credible only when the verification results between the remaining verification parameters and the object to be verified are not passed and the verification results between the remaining verification parameters are passed. That is to say, after the first difference and the second difference are obtained, if the first difference exceeds the first preset threshold and the second difference does not exceed at least one of the first preset threshold and the second preset threshold in the preset time period, it is determined that the measurement value of the object to be verified is not trusted.
For example, during the verification of the transmission output shaft speed, a measured value of the transmission output shaft speed is determined to be unreliable when the verification between the transmission output shaft speed and the clutch speed fails, the verification between the transmission output shaft speed and the driven wheel speed fails, and the verification between the clutch speed and the driven wheel speed passes. When a first difference value between a check value of the rotating speed of the output shaft of the transmission and a check value of the rotating speed of the clutch exceeds a first preset threshold value and a second preset threshold value, determining that the check between the rotating speed of the output shaft of the transmission and the rotating speed of the clutch does not pass; when a first difference value between a check value of the rotating speed of the output shaft of the transmission and a check value of the vehicle speed of the driving wheel exceeds a first preset threshold value and a second preset threshold value, determining that the check between the rotating speed of the output shaft of the transmission and the vehicle speed of the driving wheel does not pass; and when a second difference value between the check value of the clutch rotating speed and the check value of the driving wheel vehicle speed does not exceed at least one of the first preset threshold value and the second preset threshold value, determining that the check between the clutch rotating speed and the driving wheel vehicle speed is passed.
The method for checking the rotating speed measured value of the double-clutch transmission comprises the steps of taking the rotating speed of an output shaft of the transmission, the speed of a driving wheel and the rotating speed of a clutch corresponding to current gear information as checking parameters, and taking any checking parameter as a reference to convert the measured value of each checking parameter to obtain a checking value of each checking parameter.
Optionally, in order to improve the execution efficiency of the method for verifying the rotation speed measurement value of the dual clutch transmission provided by the embodiment of the present application, before the rotation speed of the output shaft of the transmission, the speed of the driving wheel, and the rotation speed of the clutch corresponding to the current gear information are used as the verification parameters, a rotation speed verification condition for enabling the method may also be set.
Specifically, whether the clutch rotation speed sensor and the transmission output shaft rotation speed sensor work normally or not can be judged, whether the current vehicle state meets a preset rotation speed check condition or not needs to be judged under the condition that the clutch rotation speed sensor and the transmission output shaft rotation speed sensor work normally, namely, the clutch rotation speed sensor and the transmission output shaft rotation speed sensor do not have faults, and if the current vehicle state meets the rotation speed check condition, the steps of taking the rotation speed of the transmission output shaft, the speed of the driving wheel and the rotation speed of the clutch corresponding to the current gear information as check parameters are executed. Optionally, the tachometry condition may include: the method comprises the following steps that the vehicle runs on a non-low-attachment road surface, a vehicle speed measuring signal of a driving wheel is normal, the vehicle is not in a neutral gear state, the vehicle is not in a gear shifting state (influence on a rotating speed signal when a clutch shifts gears is avoided), the vehicle speed of the vehicle exceeds a preset vehicle speed (wherein the preset vehicle speed can be calibrated, and optionally the preset vehicle speed can be set to be 10 kilometers per hour), and the accelerator opening of the vehicle meets the preset accelerator opening (wheel slipping caused by rapid acceleration is avoided).
In the embodiment, the vehicle is detected by setting the rotating speed detection condition, so that the vehicle is in a stable running state when the rotating speed of the vehicle is checked, the influence on the rotating speed measurement value checking result of the dual-clutch transmission is reduced, and the accuracy of the checking result is improved.
Further, if the measured value of the rotating speed of the clutch is determined to be unreliable, all calculation processes related to the rotating speed of the clutch do not use the measured value of the rotating speed of the clutch measured by the rotating speed sensor of the clutch, and the measured value of the rotating speed of the clutch is replaced by a rotating speed check value of an output shaft of the transmission or a vehicle speed check value of a driving wheel, so that the accuracy of the control process is ensured, and the safety of the vehicle is improved. If the measured value of the rotating speed of the output shaft of the transmission is determined to be unreliable, all calculation processes related to the rotating speed of the clutch do not use the measured value of the rotating speed of the output shaft of the transmission, which is measured by the rotating speed sensor of the output shaft of the transmission, but use the check value of the rotating speed of the clutch or the check value of the speed of the driving wheel to replace the measured value of the rotating speed of the output shaft of the transmission, so that the accuracy of the control process is ensured, and the safety of the vehicle is improved.
In this embodiment, when the measured value of the clutch rotation speed or the measured value of the transmission output shaft rotation speed is not authentic, the authentic measured value of the rotation speed can be subjected to substitution processing to ensure safe and normal running of the vehicle.
Fig. 3 is a schematic structural diagram of a device for verifying a rotational speed measurement value of a dual clutch transmission according to an embodiment of the present application. As shown in fig. 3, the apparatus may include: a first determination module 301, a scaling module 302, a second determination module 303, a processing module 304 and a third determination module 305.
Specifically, the first determining module 301 is configured to use a rotation speed of an output shaft of the transmission, a speed of a driving wheel, and a rotation speed of a clutch corresponding to current gear information as calibration parameters;
the conversion module 302 is configured to convert the measurement value of each calibration parameter to obtain a corresponding calibration value, with any one of the calibration parameters as a reference;
the second determination module 303 is configured to use the transmission output shaft speed or the clutch speed as an object to be verified;
the processing module 304 is configured to calculate a first difference between the check value of the object to be checked and the check values of the remaining check parameters, and calculate a second difference between the check values of the remaining check parameters;
the third determining module 305 is configured to determine a measurement value verification result of the object to be verified according to the first difference and the second difference.
On the basis of the foregoing embodiment, optionally, the first determining module 301 is specifically configured to use the odd-numbered clutch rotation speed as one of the check parameters if the current gear information is the odd-numbered gear; and if the current gear information is an even gear, taking the even clutch rotating speed as one of the verification parameters.
Based on the above embodiments, optionally, the scaling module 302 is specifically configured to determine the transmission output shaft speed as a reference; determining a check value of the speed of the driving wheel according to the measured value of the speed of the driving wheel, the final reduction ratio of the speed reducer and the radius of the driving wheel; determining a check value of the odd clutch rotation speed according to the measurement value of the odd clutch rotation speed and the transmission speed ratio; and determining a check value of the even number clutch rotating speed according to the measured value of the even number clutch rotating speed and the transmission speed ratio.
On the basis of the foregoing embodiment, optionally, the third determining module 305 is specifically configured to determine that the measured value of the object to be verified is not trusted if the first difference meets a preset condition and the second difference does not meet the preset condition within a preset time period.
Optionally, the first difference satisfying the preset condition includes: the first difference values exceed a first preset threshold value and a second preset threshold value; the second preset threshold value is obtained based on a preset rotating speed ratio; the second difference value not meeting the preset condition comprises: the second difference does not exceed at least one of the first preset threshold and the second preset threshold.
On the basis of the foregoing embodiment, optionally, the apparatus may further include: the device comprises a first judgment module and a second judgment module.
Specifically, the first determining module is configured to determine whether the clutch rotation speed sensor and the transmission output shaft rotation speed sensor work normally before the first determining module 301 takes the transmission output shaft rotation speed, the driving wheel speed, and the clutch rotation speed corresponding to the current gear information as the calibration parameter;
the second judging module is used for judging whether the current vehicle state meets a preset rotating speed checking condition or not under the condition that the clutch rotating speed sensor and the transmission output shaft rotating speed sensor work normally;
the first determining module 301 is specifically configured to use the rotation speed of the transmission output shaft, the speed of the driving wheel, and the rotation speed of the clutch corresponding to the current gear information as calibration parameters when the current vehicle state meets the rotation speed calibration condition.
Optionally, the tachometer verification condition comprises: the method comprises the steps that the vehicle runs on a non-low-attachment road surface, a driving wheel vehicle speed measuring signal is normal, the vehicle is not in a neutral gear state, the vehicle is not in a gear shifting state, the vehicle speed of the vehicle exceeds a preset vehicle speed, and the accelerator opening of the vehicle meets a preset accelerator opening.
On the basis of the foregoing embodiment, optionally, the apparatus further includes: and replacing the module.
Specifically, the replacement module is used for replacing the clutch rotation speed measured value with the transmission output shaft rotation speed check value or the driving wheel vehicle speed check value under the condition that the clutch rotation speed measured value is determined to be not credible;
the replacement module is further configured to replace the transmission output shaft speed measurement with the clutch speed check value or the driven wheel vehicle speed check value if it is determined that the transmission output shaft speed measurement is not authentic.
In one embodiment, a vehicle controller is provided, the internal structure of which may be as shown in fig. 4. The vehicle controller may include a processor 40, a memory 41, an input device 42, and an output device 43; the number of processors 40 in the vehicle controller may be one or more, and one processor 40 is taken as an example in fig. 4; the processor 40, the memory 41, the input device 42, and the output device 43 in the vehicle controller may be connected by a bus or other means, and the bus connection is exemplified in fig. 4.
The memory 41 serves as a computer readable storage medium for storing software programs, computer executable programs, and modules, such as program instructions/modules corresponding to the dual clutch transmission rotational speed measurement verification method in the embodiment of the present application (e.g., the first determining module 301, the scaling module 302, the second determining module 303, the processing module 304, and the third determining module 305 in the dual clutch transmission rotational speed measurement verification apparatus). The processor 40 executes software programs, instructions and modules stored in the memory 41 to implement various functional applications and data processing of the vehicle controller, i.e., to implement the dual clutch transmission rotational speed measurement verification method described above.
The memory 41 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the vehicle controller, and the like. Further, the memory 41 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 41 may further include memory located remotely from the processor 40, which may be connected to the vehicle controller via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 42 may be used to receive input numeric or character information and generate key signal inputs relating to user settings and function control of the vehicle controls. The output device 43 may include a display device such as a display screen.
Embodiments of the present application also provide a storage medium containing computer-executable instructions that, when executed by a computer processor, perform a method of verifying a dual clutch transmission speed measurement, the method comprising:
taking the rotating speed of an output shaft of the transmission, the speed of a driving wheel and the rotating speed of a clutch corresponding to the current gear information as calibration parameters;
converting the measurement value of each checking parameter by taking any one checking parameter as a reference to obtain a corresponding checking value;
taking the rotation speed of the output shaft of the transmission or the rotation speed of the clutch as an object to be checked;
respectively calculating a first difference value between the check value of the object to be checked and the check values of the rest of the check parameters, and a second difference value between the check values of the rest of the check parameters;
and determining a measurement value verification result of the object to be verified according to the first difference value and the second difference value.
Of course, the storage medium provided by the embodiments of the present application contains computer executable instructions, and the computer executable instructions are not limited to the operations of the method described above, and may also perform related operations in the method for checking the rotational speed measured value of the dual clutch transmission provided by any embodiment of the present application.
From the above description of the embodiments, it is obvious for those skilled in the art that the present application can be implemented by software and necessary general hardware, and certainly can be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods described in the embodiments of the present application.
It should be noted that, in the embodiment of the above search apparatus, each included unit and module are merely divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional units are only used for distinguishing one functional unit from another, and are not used for limiting the protection scope of the application.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present application and the technical principles employed. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the appended claims.
Claims (10)
1. A method of verifying a rotational speed measurement of a dual clutch transmission, comprising:
taking the rotating speed of an output shaft of the transmission, the speed of a driving wheel and the rotating speed of a clutch corresponding to the current gear information as calibration parameters;
converting the measurement value of each checking parameter by taking any one checking parameter as a reference to obtain a corresponding checking value;
taking the rotation speed of the output shaft of the transmission or the rotation speed of the clutch as an object to be verified;
respectively calculating a first difference value between the check value of the object to be checked and the check values of the rest of the check parameters, and a second difference value between the check values of the rest of the check parameters;
and determining a measured value verification result of the object to be verified according to the first difference value and the second difference value.
2. The method of claim 1, wherein the determining of the clutch speed corresponding to the current gear information comprises:
if the current gear information is odd gears, taking the rotating speed of the odd clutch as one of the verification parameters;
and if the current gear information is an even gear, taking the even clutch rotating speed as one of the verification parameters.
3. The method according to claim 1, wherein the converting the measured value of each calibration parameter with reference to any one of the calibration parameters to obtain a corresponding calibration value comprises:
determining the speed of the output shaft of the transmission as a reference;
determining a check value of the vehicle speed of the driving wheel according to the measured value of the vehicle speed of the driving wheel, the final reduction ratio of the speed reducer and the radius of the driving wheel;
determining a check value of the odd clutch rotation speed according to the odd clutch rotation speed measured value and the transmission speed ratio;
and determining a check value of the even number clutch rotating speed according to the measured value of the even number clutch rotating speed and the transmission speed ratio.
4. The method according to claim 1, wherein the determining a measured value verification result of the object to be verified according to the first difference and the second difference comprises:
and if the first difference value meets a preset condition and the second difference value does not meet the preset condition within a preset time length, determining that the measured value of the object to be verified is not credible.
5. The method according to claim 4, wherein the first difference satisfying a preset condition comprises: the first difference values exceed a first preset threshold value and a second preset threshold value; the second preset threshold is obtained based on a preset rotating speed ratio;
the second difference value not meeting the preset condition comprises the following steps: the second difference does not exceed at least one of the first preset threshold and the second preset threshold.
6. The method according to any one of claims 1 to 5, characterized in that before said checking the transmission output shaft speed, the driving wheel speed and the clutch speed corresponding to the current gear information as check parameters, the method further comprises:
judging whether the clutch rotating speed sensor and the transmission output shaft rotating speed sensor work normally or not;
if the clutch rotating speed sensor and the transmission output shaft rotating speed sensor work normally, judging whether the current vehicle state meets a preset rotating speed checking condition;
and if the current vehicle state meets the rotating speed verification condition, executing the step of taking the rotating speed of the output shaft of the transmission, the speed of the driving wheel and the rotating speed of the clutch corresponding to the current gear information as verification parameters.
7. The method of claim 6, wherein the tacho verification condition comprises: the vehicle runs on a non-low-attachment road surface, a driving wheel speed measuring signal is normal, the vehicle is not in a neutral gear state, the vehicle is not in a gear shifting state, the vehicle speed of the vehicle exceeds a preset vehicle speed, and the accelerator opening of the vehicle meets the preset accelerator opening.
8. The method of any of claims 1 to 5, further comprising:
if the measured value of the rotating speed of the clutch is determined to be not credible, replacing the measured value of the rotating speed of the clutch with the verification value of the rotating speed of the output shaft of the transmission or the vehicle speed verification value of the driving wheel;
and if the measured value of the rotating speed of the output shaft of the transmission is determined to be not credible, replacing the measured value of the rotating speed of the output shaft of the transmission with the verified value of the rotating speed of the clutch or the verified value of the vehicle speed of the driving wheel.
9. A dual clutch transmission speed measurement calibration apparatus, comprising:
the first determination module is used for taking the rotating speed of an output shaft of the transmission, the speed of a driving wheel and the rotating speed of a clutch corresponding to the current gear information as calibration parameters;
the conversion module is used for converting the measurement value of each check parameter by taking any check parameter as a reference to obtain a corresponding check value;
the second determination module is used for taking the rotating speed of the transmission output shaft or the rotating speed of the clutch as an object to be verified;
the processing module is used for respectively calculating a first difference value between the check value of the object to be checked and the check values of the rest of the check parameters and a second difference value between the check values of the rest of the check parameters;
and the third determining module is used for determining a measured value checking result of the object to be checked according to the first difference value and the second difference value.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210897496.1A CN115267258A (en) | 2022-07-28 | 2022-07-28 | Method and device for checking measured values of rotational speed of dual clutch transmission and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210897496.1A CN115267258A (en) | 2022-07-28 | 2022-07-28 | Method and device for checking measured values of rotational speed of dual clutch transmission and storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115267258A true CN115267258A (en) | 2022-11-01 |
Family
ID=83770021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210897496.1A Pending CN115267258A (en) | 2022-07-28 | 2022-07-28 | Method and device for checking measured values of rotational speed of dual clutch transmission and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115267258A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006021693A1 (en) * | 2006-05-10 | 2007-11-22 | Audi Ag | Automatically switched gear`s drive and output shafts speed information verifying method for motor vehicle, involves verifying whether variation of actual speed information by further received speed information is given or not |
| CN108119646A (en) * | 2016-11-28 | 2018-06-05 | 上海汽车集团股份有限公司 | The method for diagnosing faults and device of vehicle speed probe |
| CN109450335A (en) * | 2018-12-12 | 2019-03-08 | 北京长城华冠汽车科技股份有限公司 | The motor speed signal processing system and its control method and vehicle of vehicle |
| CN110568210A (en) * | 2019-09-06 | 2019-12-13 | 深圳臻宇新能源动力科技有限公司 | rotating speed prediction method and system and vehicle |
| CN110920629A (en) * | 2019-12-13 | 2020-03-27 | 华人运通(江苏)技术有限公司 | Vehicle speed calculation method and device and computer readable storage medium |
| CN111721972A (en) * | 2019-03-20 | 2020-09-29 | 上海汽车集团股份有限公司 | Method and device for verifying rotation speed measured value of electrically-driven gearbox |
| CN111959416A (en) * | 2020-08-31 | 2020-11-20 | 安徽江淮汽车集团股份有限公司 | Vehicle transmission system checking method, vehicle and readable storage medium |
| CN112910353A (en) * | 2021-02-07 | 2021-06-04 | 南京奥特博机电科技有限公司 | Motor control method, device and system based on sensor deviation self-correction |
| CN113306562A (en) * | 2021-06-25 | 2021-08-27 | 东风华神汽车有限公司 | Vehicle speed checking method, device, equipment and storage medium |
| CN114485536A (en) * | 2022-01-27 | 2022-05-13 | 中国第一汽车股份有限公司 | Method and system for testing surface flatness of friction plate of double-clutch transmission |
| CN114740225A (en) * | 2022-03-22 | 2022-07-12 | 潍柴动力股份有限公司 | Vehicle speed sensor credibility inspection method and system |
-
2022
- 2022-07-28 CN CN202210897496.1A patent/CN115267258A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006021693A1 (en) * | 2006-05-10 | 2007-11-22 | Audi Ag | Automatically switched gear`s drive and output shafts speed information verifying method for motor vehicle, involves verifying whether variation of actual speed information by further received speed information is given or not |
| CN108119646A (en) * | 2016-11-28 | 2018-06-05 | 上海汽车集团股份有限公司 | The method for diagnosing faults and device of vehicle speed probe |
| CN109450335A (en) * | 2018-12-12 | 2019-03-08 | 北京长城华冠汽车科技股份有限公司 | The motor speed signal processing system and its control method and vehicle of vehicle |
| CN111721972A (en) * | 2019-03-20 | 2020-09-29 | 上海汽车集团股份有限公司 | Method and device for verifying rotation speed measured value of electrically-driven gearbox |
| CN110568210A (en) * | 2019-09-06 | 2019-12-13 | 深圳臻宇新能源动力科技有限公司 | rotating speed prediction method and system and vehicle |
| CN110920629A (en) * | 2019-12-13 | 2020-03-27 | 华人运通(江苏)技术有限公司 | Vehicle speed calculation method and device and computer readable storage medium |
| CN111959416A (en) * | 2020-08-31 | 2020-11-20 | 安徽江淮汽车集团股份有限公司 | Vehicle transmission system checking method, vehicle and readable storage medium |
| CN112910353A (en) * | 2021-02-07 | 2021-06-04 | 南京奥特博机电科技有限公司 | Motor control method, device and system based on sensor deviation self-correction |
| CN113306562A (en) * | 2021-06-25 | 2021-08-27 | 东风华神汽车有限公司 | Vehicle speed checking method, device, equipment and storage medium |
| CN114485536A (en) * | 2022-01-27 | 2022-05-13 | 中国第一汽车股份有限公司 | Method and system for testing surface flatness of friction plate of double-clutch transmission |
| CN114740225A (en) * | 2022-03-22 | 2022-07-12 | 潍柴动力股份有限公司 | Vehicle speed sensor credibility inspection method and system |
Non-Patent Citations (1)
| Title |
|---|
| 路永立;: "解读JJG(铁道)152―2015《机车速度表校验台》", 铁道技术监督, no. 07, 15 July 2016 (2016-07-15), pages 18 - 19 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5972463B2 (en) | Method and motor control apparatus for identifying an error occurrence in a motor device with an electric machine | |
| JP2009215999A (en) | Misfire diagnostic device and misfire diagnostic method for engine | |
| US20050131602A1 (en) | Apparatus for correcting and diagnosing angular rate sensors installed in an automotive vehicle | |
| JP2010071738A (en) | Failure detect device and failure detect method | |
| JP6122068B2 (en) | Failure detection device for vehicle speed detection device | |
| CN112065582B (en) | Method for diagnosing engine misfire in hybrid electric vehicle | |
| CN111721972B (en) | Method and device for verifying rotation speed measured value of electrically-driven gearbox | |
| CN104859483A (en) | Torque correction coefficient calculation and torque analysis methods and systems for electric automobile | |
| CN114662954A (en) | Vehicle performance evaluation system | |
| CN111016648A (en) | Throttle signal adjusting method and device | |
| EP3705867B1 (en) | Specimen test apparatus | |
| CN110456759A (en) | Diagnostic device, diagnostic system and diagnostic method | |
| CN115267258A (en) | Method and device for checking measured values of rotational speed of dual clutch transmission and storage medium | |
| CN112197894A (en) | Method and system for acquiring average efficiency of gearbox based on whole vehicle | |
| CN111301431B (en) | Method for determining a measured vehicle speed | |
| US12031496B2 (en) | Method and device for diagnosing an internal combustion engine of a powertrain | |
| US20240003311A1 (en) | Method And Device For Diagnosing An Internal Combustion Engine Of A Powertrain | |
| CN114607507B (en) | Engine rotating speed detection method and device, computer equipment and medium | |
| CN103675327A (en) | Vehicle speed detection method | |
| CN111381070B (en) | Vehicle and vehicle speed calculation method and device thereof | |
| CN117740401A (en) | Light truck power train modal testing method and device | |
| JP2019070536A (en) | Gear diagnostic device and gear diagnostic method | |
| KR20230014489A (en) | Apparatus for diagnosing speed sensor of transmission and method thereof | |
| SE0950314A1 (en) | Method for determining torque in connection with a motor vehicle's driveline and a motor vehicle | |
| JP2022182255A (en) | Testing device of electric vehicle, testing method of electric vehicle and program |
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 |