CN112065977A - Gear shifting position identification method, gear shifting position identification device, gear shifting position identification equipment and storage medium - Google Patents
Gear shifting position identification method, gear shifting position identification device, gear shifting position identification equipment and storage medium Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
- F16H63/42—Ratio indicator devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- 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
- F16H2061/0075—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 characterised by a particular control method
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/12—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
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Abstract
The invention belongs to the technical field of automobile gear shifting, and discloses a gear shifting position identification method, a gear shifting position identification device, gear shifting position identification equipment and a storage medium, wherein the method comprises the steps of obtaining a gear shifting signal and determining a target gear according to the gear shifting signal; when the situation that the gear shifting rocker arm moves from a current gear to a target gear according to the gear shifting signal is detected, acquiring a current position signal of the gear shifting rocker arm; judging whether the gear shifting position of the gear shifting rocker arm is in a target gear or not according to the current position signal; and when the gear shifting position is not in the target gear, taking the gear signal value of the current gear as the target signal value. According to the invention, the position of the gear shifting rocker arm is detected during gear shifting, and when the gear shifting position is not in a target gear, the gear signal value of the current gear is taken as the target signal value, so that the gear position is accurately judged, the condition that no signal is output or the gear signal is misjudged is avoided, and the problems that the gear signal misjudgment and the fault are easily caused in the conventional automobile gear signal sensing mode are solved.
Description
Technical Field
The invention relates to the technical field of automobile gear shifting, in particular to a gear shifting position identification method, a gear shifting position identification device, gear shifting position identification equipment and a storage medium.
Background
The automatic Transmission type is matched with an automatic gear shifting mechanism, a corresponding sensor is required to be designed in the automatic gear shifting mechanism to identify the position of a gear shifter, so that the current gear of the manipulator is determined to be P/R/N/D/S and the like, and then the current gear is input to an engine Control system (ECU) and an automatic Transmission Control system (TCU) of the whole vehicle, so that the ECU and the TCU can conveniently take corresponding measures such as gear shifting, acceleration and deceleration, parking and the like, and therefore, the accuracy of gear signal judgment and the speed of reaction speed influence the calibration and response of the automatic Transmission.
Through assembling magnet on the rocking arm of shifting, design angle on the casing, when the rocking arm action of shifting, the hall sensor of different fender position senses the signal, outputs corresponding fender position signal value. Each gear Hall sensor has a certain induction range, and some arrangement schemes are that the induction ranges between two adjacent gears are not overlapped, and a blank area with a certain angle range exists; another arrangement is that the sensing ranges between two adjacent gears overlap. For example, in a gear identification and judgment mode, in a region where signals are overlapped or not overlapped between two adjacent gears, it is judged that the operating mechanism is not engaged in any gear or is in the process of engaging, at this time, a controller signal does not output a gear signal value, and a default value is a neutral value (considering that the engaging time is short and the long-time idling cannot occur). When one sensed signal exists and only one sensed signal exists, the gear signal value corresponding to the Hall is output, and the gear signal misjudgment and fault easily occur in the mode. If in the vehicle operation process, when engaging gear, the operating mechanism gear shifting rocker arm is damaged by parts and is positioned between two adjacent gears, or a driver mistakenly operates and shifts to a position between two adjacent gears, a gear signal is not output at the moment, so that the TCU cannot judge the gears, faults such as error reporting, even power interruption and the like occur, and it can be seen that the mode of the existing automobile sensing gear signal easily causes gear signal misjudgment and faults, and the whole automobile driving is influenced.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a gear shifting position identification method, a gear shifting position identification device, gear shifting position identification equipment and a storage medium, and aims to solve the technical problems that an existing automobile gear signal sensing mode is prone to gear signal misjudgment and failure, and the driving of the whole automobile is affected.
In order to achieve the above object, the present invention provides a shift position identifying method including the steps of:
acquiring a gear shifting signal, and determining a target gear according to the gear shifting signal;
when the situation that the gear shifting rocker arm moves from the current gear to the target gear according to the gear shifting signal is detected, acquiring a current position signal of the gear shifting rocker arm;
judging whether the gear shifting position of the gear shifting rocker arm is in the target gear or not according to the current position signal;
and when the gear shifting position is not in the target gear, taking the gear signal value of the current gear as a target signal value.
Preferably, before the step of acquiring the shift signal and determining the target gear according to the shift signal, the method further includes:
acquiring a gear signal value of a current gear, and judging whether the gear signal value is a preset signal value or not;
and when the gear signal value is the preset signal value, controlling the vehicle to move according to the gear signal value.
Preferably, when the shift position is not in the target gear, the step of taking the gear signal value of the current gear as the target signal value specifically includes:
when the gear shifting position is not in the target gear, determining whether the gear shifting position belongs to a preset induction range or not according to the current position signal;
when the gear shifting position belongs to the preset sensing range, acquiring a gear signal value of the current gear;
and taking the gear signal value as a target signal value.
Preferably, when the shift position is not in the target gear, the step of determining whether the shift position belongs to a preset sensing range according to the current position signal specifically includes:
when the gear shifting position is not in the target gear, converting the current position signal into an angle analog signal;
and determining whether the gear shifting position belongs to a preset induction range or not according to the angle analog signal.
Preferably, the step of converting the current position signal into an angle analog signal when the shift position is not in the target gear specifically includes:
when the gear shifting position is not in the target gear, acquiring position information and moving direction information of the gear shifting rocker arm according to the current position signal;
acquiring rotation center information corresponding to the gear shifting rocker arm;
determining angle information of the gear shifting rocker arm according to the position information, the moving direction information, the rotation center information and a preset coordinate system;
and generating an angle analog signal according to the angle information.
Preferably, the step of determining the angle information of the gear shift rocker arm according to the position information, the moving direction information, the rotation center information, and a preset coordinate system specifically includes:
determining a rotation center coordinate according to the rotation center information;
establishing a preset coordinate system according to the rotation center coordinate;
and determining the angle information of the gear shifting rocker arm in the preset coordinate system according to the position information and the moving direction information.
Preferably, after the step of determining whether the shift position of the shift rocker arm is in the target gear according to the current position signal, the method further includes:
when the gear shifting position is in the target gear, acquiring a target gear signal value of the target gear;
and controlling the vehicle to move according to the target gear signal value.
In addition, to achieve the above object, the present invention also provides a shift position identifying device including:
the determining module is used for acquiring a gear shifting signal and determining a target gear according to the gear shifting signal;
the acquisition module is used for acquiring a current position signal of the gear shifting rocker arm when the gear shifting rocker arm is detected to move from a current gear to the target gear according to the gear shifting signal;
the judging module is used for judging whether the gear shifting position of the gear shifting rocker arm is in the target gear or not according to the current position signal;
and the identification module is used for taking the gear signal value of the current gear as a target signal value when the gear shifting position is not in the target gear.
Further, to achieve the above object, the present invention also provides a shift position identifying apparatus including: a memory, a processor and a shift position identification program stored on the memory and executable on the processor, the shift position identification program being configured to implement the steps of the shift position identification method as described above.
Furthermore, to achieve the above object, the present invention also proposes a storage medium having stored thereon a shift position identification program which, when executed by a processor, implements the steps of the shift position identification method as described above.
According to the invention, a gear shifting signal is obtained, and a target gear is determined according to the gear shifting signal; when the situation that the gear shifting rocker arm moves from the current gear to the target gear according to the gear shifting signal is detected, acquiring a current position signal of the gear shifting rocker arm; judging whether the gear shifting position of the gear shifting rocker arm is in the target gear or not according to the current position signal; and when the gear shifting position is not in the target gear, taking the gear signal value of the current gear as a target signal value. Through the mode, the gear shifting position of the gear shifting rocker arm is detected during gear shifting, the Hall sensors of the current gear and the target gear sense signals or do not sense signals, and the gear signal value of the current gear is used as the target signal value when the gear shifting position is not in the target gear in the gear shifting process, so that the gear position is accurately judged, and the situation that the gear signal misjudgment is carried out under the conditions that no signal is output or misoperation is avoided, and the damage caused by mistaken execution actions on an operating mechanism or a transmission is avoided. The technical problem that gear signal misjudgment and faults are easily caused in the conventional mode of sensing the gear signal of the automobile, and the driving of the whole automobile is influenced is solved.
Drawings
Fig. 1 is a schematic structural diagram of a shift position identifying apparatus of a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a first embodiment of a shift position identification method of the present invention;
FIG. 3 is a schematic view of an arrangement structure of a Hall sensor and a gear shifting rocker arm of the operating mechanism;
FIG. 4 is a first schematic diagram of Hall sensor angular range principle;
FIG. 5 is a second schematic diagram of Hall sensor angle range principle;
FIG. 6 is a flowchart illustrating a shift position identification method according to a second embodiment of the present invention;
fig. 7 is a block diagram showing the configuration of the first embodiment of the gearshift position identifying device of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a shift position identifying device in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the shift position identifying apparatus may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a WIreless interface (e.g., a WIreless-FIdelity (WI-FI) interface). The Memory 1005 may be a Random Access Memory (RAM) Memory, or may be a Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration shown in fig. 1 does not constitute a limitation of the shifting position identifying device, and may include more or fewer components than those shown, or some components in combination, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a storage medium, may include therein an operating system, a network communication module, a user interface module, and a shift position recognition program.
In the shift position identifying apparatus shown in fig. 1, the network interface 1004 is mainly used for data communication with a network server; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 in the shift position identifying apparatus of the present invention may be provided in the shift position identifying apparatus which calls the shift position identifying program stored in the memory 1005 through the processor 1001 and executes the shift position identifying method provided by the embodiment of the present invention.
An embodiment of the present invention provides a shift position identifying method, and referring to fig. 2, fig. 2 is a flowchart illustrating a first embodiment of a shift position identifying method according to the present invention.
In this embodiment, the shift position identifying method includes the steps of:
step S10: and acquiring a gear shifting signal, and determining a target gear according to the gear shifting signal.
It should be noted that, referring to fig. 3, fig. 3 is a schematic diagram of an arrangement structure of a hall sensor and a shift rocker of an operating mechanism, wherein the 1-shift rocker, the 1A-shift rocker magnet, the 1B-shift rocker rotation center, the 1C-shift rocker wire drawing pin, the 2-controller assembly, the 2A-P gear hall sensor, the 2B-R gear hall sensor, the 2C-N gear hall sensor, the 2D-D gear hall sensor, and the 2E-S gear hall sensor. Along with the driver control gear level, gear shift rocking arm 1 rotates around its rotation center 1B, drives and fixes gear shift rocking arm magnet 1A on gear shift rocking arm 1 and rotates, drives gear shift rocking arm wire drawing round pin 1C simultaneously and carries out corresponding rotation, and gear shift rocking arm wire drawing round pin 1C connects the wire drawing of shifting to the derailleur end to control the rotation of derailleur internal mechanism and produce corresponding manipulation. Meanwhile, the shell of the speed change operating mechanism is provided with the controller assembly 2, and a circuit board of the controller assembly 2 is provided with corresponding gear Hall sensors such as 2A/2B/2C/ 2D/2E and the like, wherein the specific number of gears can be set according to the actual function of the transmission and is not limited to the number listed in the embodiment. The gear shifting signal can be a signal sensed by a Hall sensor of the current operating mechanism, can be a current gear signal, and can also be any target gear signal to be shifted to.
It is easy to understand that when the driver shifts to different gears, the shifting rocker arm 1 rotates to the corresponding position, and the shifting rocker arm magnet 1A on the shifting rocker arm 1 exactly corresponds to the position of the corresponding gear hall sensor on the controller assembly 2 one by one. When a certain gear is determined, the gear Hall sensor senses a signal, the controller assembly 2 determines a gear signal value according to the signal of the gear Hall sensor and the logic and other diagnostic logic of the controller assembly 2, and sends the gear signal value to the CAN bus so as to be used by other systems such as an automatic transmission control system or a whole vehicle engine control system.
It should be noted that, before the step of acquiring the shift signal and determining the target gear according to the shift signal, the method further includes: acquiring a gear signal value of a current gear, and judging whether the gear signal value is a preset signal value or not; and when the gear signal value is the preset signal value, controlling the vehicle to move according to the gear signal value. That is to say, obtain the fender position signal value that keeps off the position at present, and judge whether keep off the position signal value and be preset signal value, when having and only the hall sensor that the current fender position corresponds senses the signal, confirm keep off the position signal value and do preset signal value, then according to keep off position signal value control vehicle motion, CAN send on keeping off position signal value to the CAN bus to supply other systems such as automatic transmission control system or whole car engine control system to use.
It is easy to understand that a shift signal is obtained and a target gear is determined according to the shift signal, that is, a shift signal is generated when a driver performs a shift operation and rotates a shift lever, the target gear is determined according to the shift signal, for example, the current gear is P gear, the driver wants to shift to R gear, the shift signal is obtained and the target gear is R gear is determined according to the shift signal.
Step S20: and when the gear shifting rocker arm is detected to move from the current gear to the target gear according to the gear shifting signal, acquiring a current position signal of the gear shifting rocker arm.
It should be noted that, when a driver performs a gear shift operation and rotates a shift lever, the magnet 1A on the shift rocker rotates, for example, the current gear is the P gear, the driver rotates the shift lever to shift to the R gear, acquires a shift signal and determines that the target gear is the R gear according to the shift signal, the shift rocker moves from the current gear P gear to the target gear R gear according to the shift signal, and when it is detected that the shift rocker moves from the current gear P gear to the target gear R gear according to the shift signal, the current position signal of the shift rocker is acquired.
Step S30: and judging whether the gear shifting position of the gear shifting rocker arm is in the target gear or not according to the current position signal.
It should be understood that, referring to fig. 4, fig. 4 is a first schematic diagram of the angular range principle of the hall sensor, referring to fig. 5, fig. 5 is a second schematic diagram of the angular range principle of the hall sensor, and the hall sensor generally adopts an angular hall, that is, when a magnet on a gear shifting rocker arm passes through a certain angular range, the hall sensor can send out a corresponding signal. Due to the limited angular range of the hall sensor, while taking into account the limitations of the range of the arrangement of the rocker arm and the controller assembly circuit board, the presently common hall sensor arrangement may include the following, as shown in fig. 4 and 5. As shown in fig. 4, the sensing ranges of the hall sensors corresponding to the gears do not intersect, and no hall sensor can sense signals within a certain angle range, such as the range of 4A/4B/4C/4D in fig. 4. When the magnet on the gear shifting rocker arm enters the sensing range of a certain Hall sensor, such as the range of 3A/3B/3C/3D/3E in fig. 4, and only the Hall sensor corresponding to the gear senses a signal, the controller assembly outputs a gear signal value corresponding to the Hall sensor, and if the magnet enters between two adjacent gears, the gear is not in place or is in the gear engaging process.
As shown in fig. 5, the sensing ranges of the hall sensors corresponding to the gears are crossed, and a certain angle range between adjacent gears is as shown in fig. 5 as 4A, and both of the two adjacent hall sensors can sense a gear signal value, which indicates that the gear is not engaged in place or is in the process of engaging the gear. If one and only one Hall sensor senses a signal within the range of 3A/3B in FIG. 5, the gear is engaged, and the controller assembly 2 outputs the gear signal value to the CAN bus.
It should be noted that, it is determined whether the shift position of the shift rocker is in the target gear according to the current position signal, that is, it is determined whether the shift position is engaged with the target gear, and when the shift position is not engaged with the target gear, as shown in fig. 4 and 5, there is no signal in the sensing range of the hall sensor, if the shift rocker 1 is in between two gears due to a hardware structure fault, or the shift rocker 1 is just in between due to an accidental operation of a driver, and no gear signal is output at this time, the TCU cannot determine the gear, and a fault such as error reporting or even power interruption occurs.
It is easy to understand that, this embodiment judges according to the current position signal whether the shift position of the shift rocker arm is in the target gear, and when the shift position is not in the target gear, the gear signal value of the current gear is used as the target signal value. That is to say, for example, when the current gear is the P gear, the driver rotates the shift lever to shift to the R gear, acquires the shift signal and determines that the target gear is the R gear according to the shift signal, the shift rocker arm moves from the current gear P gear to the target gear R gear according to the shift signal, determines whether the shift position is engaged with the target gear R gear, and when the shift position is not engaged with the target gear R gear, takes the gear signal value of the current gear P gear as the target signal value.
Step S40: and when the gear shifting position is not in the target gear, taking the gear signal value of the current gear as a target signal value.
It should be noted that, when the driver performs a gear shift operation and rotates the shift lever, the magnet 1A on the shift rocker rotates, and when the rotation range is still in the range of the hall sensor of the current gear P (i.e. only the hall sensor corresponding to the current gear P senses a signal), the gear signal value of the current gear P is taken as a target signal value, i.e. the gear signal value of the current gear P is still output. When the gear shifting rocker arm 1 continues to rotate, the target gear R is shifted, and only the Hall sensor corresponding to the target gear R senses a signal, the gear can be determined to be engaged into the target gear R. And the controller assembly 2 outputs a gear signal value of the target gear R gear to the CAN bus after confirmation so that a corresponding system CAN adopt the operation required by the target gear R gear.
It should be understood that, after the step of determining whether the shifting position of the shifting rocker arm is in the target gear according to the current position signal, the method further comprises the following steps: when the gear shifting position is in the target gear, acquiring a target gear signal value of the target gear; and controlling the vehicle to move according to the target gear signal value. That is to say, the target gear is engaged in the gear shifting position, the controller assembly 2 outputs a target gear signal value to the CAN bus, and the vehicle is controlled to move according to the target gear signal value.
In the embodiment, a target gear is determined by acquiring a gear shifting signal and according to the gear shifting signal; when the situation that the gear shifting rocker arm moves from the current gear to the target gear according to the gear shifting signal is detected, acquiring a current position signal of the gear shifting rocker arm; judging whether the gear shifting position of the gear shifting rocker arm is in the target gear or not according to the current position signal; and when the gear shifting position is not in the target gear, taking the gear signal value of the current gear as a target signal value. Through the mode, the gear shifting position of the gear shifting rocker arm is detected during gear shifting, the Hall sensors of the current gear and the target gear sense signals or do not sense signals, and the gear signal value of the current gear is used as the target signal value when the gear shifting position is not in the target gear in the gear shifting process, so that the gear position is accurately judged, and the situation that the gear signal misjudgment is carried out under the conditions that no signal is output or misoperation is avoided, and the damage caused by mistaken execution actions on an operating mechanism or a transmission is avoided. The technical problem that gear signal misjudgment and faults are easily caused in the mode that a Hall sensor senses gear signals in an existing automobile, and the driving of the whole automobile is affected is solved.
Referring to fig. 6, fig. 6 is a flowchart illustrating a shift position identifying method according to a second embodiment of the present invention. Based on the first embodiment, in the step S40, the shift position identifying method of this embodiment specifically includes:
step S401: and when the gear shifting position is not in the target gear, determining whether the gear shifting position belongs to a preset induction range or not according to the current position signal.
It should be noted that, when the shift position is not in the target gear, the step of determining whether the shift position belongs to a preset sensing range according to the current position signal specifically includes: when the gear shifting position is not in the target gear, converting the current position signal into an angle analog signal; and determining whether the gear shifting position belongs to a preset induction range or not according to the angle analog signal. The preset sensing range can be that the gear shifting position is between any two gears.
It is easy to understand that, when the shift position is not in the target gear, the step of converting the current position signal into an angle analog signal specifically includes: when the gear shifting position is not in the target gear, acquiring position information and moving direction information of the gear shifting rocker arm according to the current position signal; acquiring rotation center information corresponding to the gear shifting rocker arm; determining angle information of the gear shifting rocker arm according to the position information, the moving direction information, the rotation center information and a preset coordinate system; and generating an angle analog signal according to the angle information. That is to say, the position information and the moving direction information of the shifting rocker arm are obtained according to the current position signal, the moving direction of the shifting rocker arm in the moving direction information may be clockwise or counterclockwise, the rotation center information corresponding to the shifting rocker arm is obtained, and referring to fig. 3 or fig. 4, the rotation center of the shifting rocker arm 1B-may be obtained; determining angle information of the gear shifting rocker arm according to the position information, the moving direction information, the rotation center information and a preset coordinate system; and generating an angle analog signal according to the angle information.
It should be understood that the preset coordinate system may be established by: determining a rotation center coordinate according to the rotation center information, and acquiring the rotation center coordinate by referring to a rotation center of a 1B-gear shifting rocker arm in the graph 3 or the graph 4; establishing a preset coordinate system according to the rotation center coordinate, and establishing a preset coordinate system according to a rectangular coordinate system by taking the rotation center coordinate as an origin; and determining the angle information of the gear shifting rocker arm in the preset coordinate system according to the position information and the moving direction information.
Step S402: and when the gear shifting position belongs to the preset induction range, acquiring a gear signal value of the current gear.
It should be noted that, when the shift position is not in the target gear, the current position signal is converted into an angle analog signal; and determining whether the gear shifting position belongs to a preset induction range or not according to the angle analog signal. The preset sensing range can be that the gear shifting position is between any two gears. When the gear shifting position belongs to the preset induction range, acquiring a gear signal value of a current gear, namely, for example, the current gear is a P gear, a driver rotates a gear shifting lever to shift to an R gear, acquires a gear shifting signal and determines that a target gear is an R gear according to the gear shifting signal, a gear shifting rocker arm moves from the current gear P gear to the target gear R gear according to the gear shifting signal, and judges whether the gear shifting position is engaged with the target gear R gear, when the gear shifting position belongs to the preset induction range, namely, between the P gear and the R gear, namely, when the gear shifting position is not engaged with the target gear R gear, the gear signal value of the current gear P gear is acquired.
Step S403: and taking the gear signal value as a target signal value.
It is easy to understand that, for example, when the current gear is the P gear, the driver rotates the shift lever to shift to the R gear, and when the shift position belongs to the preset sensing range, i.e., between the P gear and the R gear, i.e., when the shift position is not in the target gear R gear, the gear signal value of the current gear P gear is obtained, and the gear signal value of the current gear P gear is used as the target signal value.
It should be noted that, in this embodiment, shift position identification may also be performed according to the number of signals: when a driver executes a gear shifting operation and rotates the gear shifting lever, the magnet on the gear shifting rocker arm rotates, for example, the current gear is the P gear, the driver rotates the gear shifting lever to shift to the target gear R gear, and the Hall sensors corresponding to the two adjacent gears P gear and R gear do not sense signals or sense signals, so that the gear signal value of the current gear P gear is still output, and the condition that the gear shifter is between the two adjacent gears P gear and R gear is indicated; when the Hall sensor corresponding to the target gear R senses a signal, a gear signal value of the target gear R is output, and the gear shifter is indicated to be shifted to the target gear R.
In the embodiment, when the shift position is not in the target gear, whether the shift position belongs to a preset sensing range is determined according to the current position signal; when the gear shifting position belongs to the preset sensing range, acquiring a gear signal value of the current gear; and taking the gear signal value as a target signal value. Through the mode, the gear shifting position of the gear shifting rocker arm is detected during gear shifting, the Hall sensors of the current gear and the target gear sense signals or do not sense signals, and the gear signal value of the current gear is used as the target signal value when the gear shifting position is not in the target gear in the gear shifting process, so that the gear position is accurately judged, and the situation that the gear signal misjudgment is carried out under the conditions that no signal is output or misoperation is avoided, and the damage caused by mistaken execution actions on an operating mechanism or a transmission is avoided. The technical problem that gear signal misjudgment and faults are easily caused in the mode that the existing Hall sensor senses the gear signals, and the driving of the whole vehicle is influenced is solved.
Furthermore, an embodiment of the present invention also proposes a storage medium having stored thereon a shift position identification program, which is executed by a processor to perform the steps of the shift position identification method as described above.
Since the storage medium adopts all technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is given here.
Referring to fig. 7, fig. 7 is a block diagram showing the structure of the shift position identifying device according to the first embodiment of the present invention.
As shown in fig. 7, the shift position identifying apparatus in the embodiment of the present invention includes a determining module 10, an obtaining module 20, a judging module 30, and an identifying module 40; wherein,
the determining module 10 is configured to acquire a shift signal and determine a target gear according to the shift signal.
It should be noted that, referring to fig. 3, fig. 3 is a schematic diagram of an arrangement structure of a hall sensor and a shift rocker of an operating mechanism, wherein the 1-shift rocker, the 1A-shift rocker magnet, the 1B-shift rocker rotation center, the 1C-shift rocker wire drawing pin, the 2-controller assembly, the 2A-P gear hall sensor, the 2B-R gear hall sensor, the 2C-N gear hall sensor, the 2D-D gear hall sensor, and the 2E-S gear hall sensor. Along with the driver control gear level, gear shift rocking arm 1 rotates around its rotation center 1B, drives and fixes gear shift rocking arm magnet 1A on gear shift rocking arm 1 and rotates, drives gear shift rocking arm wire drawing round pin 1C simultaneously and carries out corresponding rotation, and gear shift rocking arm wire drawing round pin 1C connects the wire drawing of shifting to the derailleur end to control the rotation of derailleur internal mechanism and produce corresponding manipulation. Meanwhile, the shell of the speed change operating mechanism is provided with the controller assembly 2, and a circuit board of the controller assembly 2 is provided with corresponding gear Hall sensors such as 2A/2B/2C/ 2D/2E and the like, wherein the specific number of gears can be set according to the actual function of the transmission and is not limited to the number listed in the embodiment. The gear shifting signal can be a signal sensed by a Hall sensor of the current operating mechanism, can be a current gear signal, and can also be any target gear signal to be shifted to.
It is easy to understand that when the driver shifts to different gears, the shifting rocker arm 1 rotates to the corresponding position, and the shifting rocker arm magnet 1A on the shifting rocker arm 1 exactly corresponds to the position of the corresponding gear hall sensor on the controller assembly 2 one by one. When a certain gear is determined, the gear Hall sensor senses a signal, the controller assembly 2 determines a gear signal value according to the signal of the gear Hall sensor and the logic and other diagnostic logic of the controller assembly 2, and sends the gear signal value to the CAN bus so as to be used by other systems such as an automatic transmission control system or a whole vehicle engine control system.
It should be noted that, before the step of acquiring the shift signal and determining the target gear according to the shift signal, the method further includes: acquiring a gear signal value of a current gear, and judging whether the gear signal value is a preset signal value or not; and when the gear signal value is the preset signal value, controlling the vehicle to move according to the gear signal value. That is to say, obtain the fender position signal value that keeps off the position at present, and judge whether keep off the position signal value and be preset signal value, when having and only the hall sensor that the current fender position corresponds senses the signal, confirm keep off the position signal value and do preset signal value, then according to keep off position signal value control vehicle motion, CAN send on keeping off position signal value to the CAN bus to supply other systems such as automatic transmission control system or whole car engine control system to use.
It is easy to understand that a shift signal is obtained and a target gear is determined according to the shift signal, that is, a shift signal is generated when a driver performs a shift operation and rotates a shift lever, the target gear is determined according to the shift signal, for example, the current gear is P gear, the driver wants to shift to R gear, the shift signal is obtained and the target gear is R gear is determined according to the shift signal.
The obtaining module 20 is configured to obtain a current position signal of the shift rocker arm when it is detected that the shift rocker arm moves from the current gear to the target gear according to the shift signal.
It should be noted that, when a driver performs a gear shift operation and rotates a shift lever, the magnet 1A on the shift rocker rotates, for example, the current gear is the P gear, the driver rotates the shift lever to shift to the R gear, acquires a shift signal and determines that the target gear is the R gear according to the shift signal, the shift rocker moves from the current gear P gear to the target gear R gear according to the shift signal, and when it is detected that the shift rocker moves from the current gear P gear to the target gear R gear according to the shift signal, the current position signal of the shift rocker is acquired.
And the judging module 30 is configured to judge whether the shift position of the shift rocker arm is in the target gear according to the current position signal.
It should be understood that, referring to fig. 4, fig. 4 is a first schematic diagram of the hall sensor angle range principle, wherein the 1A-gear rocker arm magnet, the 1B-gear rocker arm rotation center, the 2-controller assembly, the 2A-P gear hall sensor, the 2B-R gear hall sensor, the 2C-N gear hall sensor, the 2D-D gear hall sensor, and the 2E-S gear hall sensor. Referring to fig. 5, fig. 5 is a second schematic diagram of the hall sensor angle range principle, wherein the 1A-gear shifting rocker arm magnet, the 2A-P gear hall sensor, and the 2B-R gear hall sensor. The Hall sensor generally adopts an angle Hall, namely, the Hall sensor can send out a corresponding signal when a magnet on a gear shifting rocker arm in a certain angle range passes through the Hall sensor. Due to the limited angular range of the hall sensor, while taking into account the limitations of the range of the arrangement of the rocker arm and the controller assembly circuit board, the presently common hall sensor arrangement may include the following, as shown in fig. 4 and 5. As shown in fig. 4, the sensing ranges of the hall sensors corresponding to the gears do not intersect, and no hall sensor can sense signals within a certain angle range, such as the range of 4A/4B/4C/4D in fig. 4. When the magnet on the gear shifting rocker arm enters the sensing range of a certain Hall sensor, such as the range of 3A/3B/3C/3D/3E in fig. 4, and only the Hall sensor corresponding to the gear senses a signal, the controller assembly outputs a gear signal value corresponding to the Hall sensor, and if the magnet enters between two adjacent gears, the gear is not in place or is in the gear engaging process.
As shown in fig. 5, the sensing ranges of the hall sensors corresponding to the gears are crossed, and a certain angle range between adjacent gears is as shown in fig. 5 as 4A, and both of the two adjacent hall sensors can sense a gear signal value, which indicates that the gear is not engaged in place or is in the process of engaging the gear. If one and only one Hall sensor senses a signal within the range of 3A/3B in FIG. 5, the gear is engaged, and the controller assembly 2 outputs the gear signal value to the CAN bus.
It should be noted that, it is determined whether the shift position of the shift rocker is in the target gear according to the current position signal, that is, it is determined whether the shift position is engaged with the target gear, and when the shift position is not engaged with the target gear, as shown in fig. 4 and 5, there is no signal in the sensing range of the hall sensor, if the shift rocker 1 is in between two gears due to a hardware structure fault, or the shift rocker 1 is just in between due to an accidental operation of a driver, and no gear signal is output at this time, the TCU cannot determine the gear, and a fault such as error reporting or even power interruption occurs.
It is easy to understand that, this embodiment judges according to the current position signal whether the shift position of the shift rocker arm is in the target gear, and when the shift position is not in the target gear, the gear signal value of the current gear is used as the target signal value. That is to say, for example, when the current gear is the P gear, the driver rotates the shift lever to shift to the R gear, acquires the shift signal and determines that the target gear is the R gear according to the shift signal, the shift rocker arm moves from the current gear P gear to the target gear R gear according to the shift signal, determines whether the shift position is engaged with the target gear R gear, and when the shift position is not engaged with the target gear R gear, takes the gear signal value of the current gear P gear as the target signal value.
And the identification module 40 is configured to use the gear signal value of the current gear as a target signal value when the shift position is not in the target gear.
It should be noted that, when the driver performs a gear shift operation and rotates the shift lever, the magnet 1A on the shift rocker rotates, and when the rotation range is still in the range of the hall sensor of the current gear P (i.e. only the hall sensor corresponding to the current gear P senses a signal), the gear signal value of the current gear P is taken as a target signal value, i.e. the gear signal value of the current gear P is still output. When the gear shifting rocker arm 1 continues to rotate, the target gear R is shifted, and only the Hall sensor corresponding to the target gear R senses a signal, the gear can be determined to be engaged into the target gear R. And the controller assembly 2 outputs a gear signal value of the target gear R gear to the CAN bus after confirmation so that a corresponding system CAN adopt the operation required by the target gear R gear.
It should be understood that, after the step of determining whether the shifting position of the shifting rocker arm is in the target gear according to the current position signal, the method further comprises the following steps: when the gear shifting position is in the target gear, acquiring a target gear signal value of the target gear; and controlling the vehicle to move according to the target gear signal value. That is to say, the target gear is engaged in the gear shifting position, the controller assembly 2 outputs a target gear signal value to the CAN bus, and the vehicle is controlled to move according to the target gear signal value.
The gear shifting position identification device in the embodiment comprises a determining module 10, an obtaining module 20, a judging module 30 and an identifying module 40; the determining module 10 is configured to obtain a shift signal and determine a target gear according to the shift signal; the obtaining module 20 is configured to obtain a current position signal of the shift rocker arm when the shift rocker arm is detected to move from the current gear to the target gear according to the shift signal; the judging module 30 is configured to judge whether the shift position of the shift rocker arm is in the target gear according to the current position signal; and the identification module 40 is configured to use the gear signal value of the current gear as a target signal value when the shift position is not in the target gear. Through the mode, the gear shifting position of the gear shifting rocker arm is detected during gear shifting, the Hall sensors of the current gear and the target gear sense signals or do not sense signals, and the gear signal value of the current gear is used as the target signal value when the gear shifting position is not in the target gear in the gear shifting process, so that the gear position is accurately judged, and the situation that the gear signal misjudgment is carried out under the conditions that no signal is output or misoperation is avoided, and the damage caused by mistaken execution actions on an operating mechanism or a transmission is avoided. The technical problem that gear signal misjudgment and faults are easily caused in the mode that the existing Hall sensor senses the gear signals, and the driving of the whole vehicle is influenced is solved.
It should be understood that the above is only an example, and the technical solution of the present invention is not limited in any way, and in a specific application, a person skilled in the art may set the technical solution as needed, and the present invention is not limited thereto.
It should be noted that the above-described work flows are only exemplary, and do not limit the scope of the present invention, and in practical applications, a person skilled in the art may select some or all of them to achieve the purpose of the solution of the embodiment according to actual needs, and the present invention is not limited herein.
In addition, technical details that are not elaborated in this embodiment may refer to a shift position identification method provided in any embodiment of the present invention, and are not described herein again.
Further, it is to be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (e.g. Read Only Memory (ROM)/RAM, magnetic disk, optical disk), and includes several instructions for enabling a terminal device (e.g. a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A shift position identifying method, characterized by comprising:
acquiring a gear shifting signal, and determining a target gear according to the gear shifting signal;
when the situation that the gear shifting rocker arm moves from the current gear to the target gear according to the gear shifting signal is detected, acquiring a current position signal of the gear shifting rocker arm;
judging whether the gear shifting position of the gear shifting rocker arm is in the target gear or not according to the current position signal;
and when the gear shifting position is not in the target gear, taking the gear signal value of the current gear as a target signal value.
2. The shift position identifying method of claim 1, wherein said step of obtaining a shift signal and determining a target gear based on said shift signal is preceded by the step of:
acquiring a gear signal value of a current gear, and judging whether the gear signal value is a preset signal value or not;
and when the gear signal value is the preset signal value, controlling the vehicle to move according to the gear signal value.
3. The shift position identifying method according to claim 2, wherein the step of using the gear signal value of the current gear as the target signal value when the shift position is not in the target gear specifically comprises:
when the gear shifting position is not in the target gear, determining whether the gear shifting position belongs to a preset induction range or not according to the current position signal;
when the gear shifting position belongs to the preset sensing range, acquiring a gear signal value of the current gear;
and taking the gear signal value as a target signal value.
4. The method for identifying a shift position according to claim 3, wherein the step of determining whether the shift position belongs to a preset sensing range according to the current position signal when the shift position is not in the target gear includes:
when the gear shifting position is not in the target gear, converting the current position signal into an angle analog signal;
and determining whether the gear shifting position belongs to a preset induction range or not according to the angle analog signal.
5. The shift position identifying method according to claim 4, wherein the step of converting the current position signal into an angle analog signal when the shift position is not in the target gear specifically comprises:
when the gear shifting position is not in the target gear, acquiring position information and moving direction information of the gear shifting rocker arm according to the current position signal;
acquiring rotation center information corresponding to the gear shifting rocker arm;
determining angle information of the gear shifting rocker arm according to the position information, the moving direction information, the rotation center information and a preset coordinate system;
and generating an angle analog signal according to the angle information.
6. The shift position identifying method according to claim 5, wherein the step of determining the angle information of the shift rocker arm based on the position information, the moving direction information, the rotation center information, and a preset coordinate system specifically includes:
determining a rotation center coordinate according to the rotation center information;
establishing a preset coordinate system according to the rotation center coordinate;
and determining the angle information of the gear shifting rocker arm in the preset coordinate system according to the position information and the moving direction information.
7. The shift position identifying method according to claim 1, wherein said step of determining whether the shift position of the shift rocker arm is in the target gear based on the current position signal further comprises:
when the gear shifting position is in the target gear, acquiring a target gear signal value of the target gear;
and controlling the vehicle to move according to the target gear signal value.
8. A shift position identifying device, characterized by comprising:
the determining module is used for acquiring a gear shifting signal and determining a target gear according to the gear shifting signal;
the acquisition module is used for acquiring a current position signal of the gear shifting rocker arm when the gear shifting rocker arm is detected to move from a current gear to the target gear according to the gear shifting signal;
the judging module is used for judging whether the gear shifting position of the gear shifting rocker arm is in the target gear or not according to the current position signal;
and the identification module is used for taking the gear signal value of the current gear as a target signal value when the gear shifting position is not in the target gear.
9. A shift position identifying apparatus, characterized in that the apparatus comprises: memory, a processor and a shift position identification program stored on the memory and executable on the processor, the shift position identification program being configured to implement the steps of the shift position identification method according to any of claims 1 to 7.
10. Storage medium, characterized in that the storage medium has stored thereon a gear shift position identification program which, when being executed by a processor, carries out the steps of a gear shift position identification method according to one of claims 1 to 7.
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| CN202010902874.1A CN112065977A (en) | 2020-08-31 | 2020-08-31 | Gear shifting position identification method, gear shifting position identification device, gear shifting position identification equipment and storage medium |
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| CN202010902874.1A CN112065977A (en) | 2020-08-31 | 2020-08-31 | Gear shifting position identification method, gear shifting position identification device, gear shifting position identification equipment and storage medium |
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