CN108749811B - Gear shifting control method and system of electronic gear shifter and vehicle - Google Patents
Gear shifting control method and system of electronic gear shifter and vehicle Download PDFInfo
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- CN108749811B CN108749811B CN201810379773.3A CN201810379773A CN108749811B CN 108749811 B CN108749811 B CN 108749811B CN 201810379773 A CN201810379773 A CN 201810379773A CN 108749811 B CN108749811 B CN 108749811B
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- gear
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- shifter
- gear shifting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
- B60W10/11—Stepped gearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
- B60W30/182—Selecting between different operative modes, e.g. comfort and performance modes
Abstract
The invention provides a gear shifting control method and system of an electronic gear shifter and a vehicle, wherein the control method comprises the steps of judging whether normal gear shifting executed by the electronic gear shifter is effective or not according to a fault state and gear information of the electronic gear shifter; if the execution of the normal gear shifting is invalid, judging whether the execution of the safe gear of the electronic gear shifter is valid, and if the execution of the safe gear is valid, enabling the vehicle to enter a safe mode; judging the number of times of entering a safety mode; when the number of times of entering the safety mode is less than or equal to Y, judging whether the electronic gear shifter executes correct gear shifting effectively; when the correct gear shifting is effectively executed, the number of times of executing the correct gear shifting by the electronic gear shifter is judged, when the number of times of executing the correct gear shifting is larger than N, the safety mode is exited, and the vehicle is switched to the normal gear shifting mode.
Description
Technical Field
The invention relates to the field of automobiles, in particular to a gear shifting control method and system of an electronic gear shifter.
Background
The electronic gear lever is not connected with the gearbox in a traditional mechanical mode, but adopts a safer and faster electronic control mode, so that the traditional gear shifting mode is omitted, electronic signals are adopted for replacement, and a driver pulls the gear lever during gear shifting so that the gear shifting arm connected with the gear lever moves in the gear shifting operation mechanism. The gear shifting arm is provided with a permanent magnet, the shell of the gear shifting operating mechanism is provided with a plurality of Hall sensors, when the permanent magnet on the gear shifting arm is at different positions, the magnetic induction intensity received by the Hall sensors on the shell is different, and the external gear box is controlled by other devices to realize different gears of the automobile. Therefore, for mechanical gear shifting mode, the automobile electronic gear shifter can effectively reduce the force required by the operation gear shifting lever of the driver, effectively prevent the damage of the transmission caused by improper operation of the driver, and meanwhile, the wrong gear shifting operation of the driver can be judged by a computer to judge whether the damage is caused to the transmission or not, so that the transmission is better protected and the bad gear shifting habit of the driver is corrected.
However, in a vehicle equipped with an electronic shifter system, when the system is in a fault, the driver is often only prompted or enters a safe gear, no more processing is performed, and only the current state is kept unchanged.
Therefore, there is a need to provide a new solution.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an electronic gear shifter gear shifting control method, an electronic gear shifter gear shifting control system and a vehicle, which can timely and effectively process system faults.
According to an aspect of the invention, the invention provides an electronic shifter shift control method, comprising:
judging whether the electronic gear shifter executes normal gear shifting effectively or not according to the fault state and the gear information of the electronic gear shifter;
if the execution of the normal gear shifting is invalid, judging whether the execution of the safe gear of the electronic gear shifter is valid, and if the execution of the safe gear is valid, enabling the vehicle to enter a safe mode;
judging the number of times of entering a safety mode;
when the number of times of entering the safety mode is less than or equal to Y, judging whether the electronic gear shifter executes correct gear shifting effectively;
and when the correct gear shifting is effectively executed, judging the number of times of executing the correct gear shifting by the electronic gear shifter, and when the number of times of executing the correct gear shifting is larger than N, exiting the safety mode, and switching the vehicle to a normal gear shifting mode.
Further, the process of determining the number of times of entering the security mode is as follows:
when the execution of normal gear shifting is invalid, judging whether the execution of safe gears by the electronic gear shifter is valid or not, and if the execution of safe gears by the electronic gear shifter is valid, recording to enter a safe mode for 1 time;
setting the position of the electronic gear shifter in the safe gear as an initial gear, judging the effective times n of the electronic gear shifter executing the safe gear, recording the times of entering the safe mode as n +1, wherein n is an integer more than or equal to 1,
the number of times that the electronic gear shifter executes the safe gear is as follows: the sum of the number of times that the electronic gear shifter enters the safe gear from the safe gear and is invalid and the number of times that the electronic gear shifter enters the safe gear from the other gears and is valid.
Further, if the number of times of the vehicle entering the safe mode is larger than Y, the current gear is maintained, and a prompt is given.
Further, the process of determining the number of times the electronic shifter performs a correct shift is as follows:
setting the position of the electronic gear shifter in the safe gear as an initial gear, judging the effective times m of the electronic gear shifter executing other gears, wherein m is an integer more than or equal to 1,
wherein, the effectual number of times of other fender position of electron selector execution is: the sum of the number of times the electronic shifter is effective to enter other gears from the starting gear and the number of times the electronic shifter is properly shifted between other gears.
Further, when it is determined that the number of times m that the correct gear shift is performed is not greater than N, then:
judging the number of times of entering the safety mode again;
and if the number of times (N +1) of entering the safety mode is less than or equal to Y, judging whether the electronic gear shifter is effective for executing correct gear shifting again until the number of times m of executing correct gear shifting is more than N, exiting the safety mode, and switching the vehicle to the normal gear shifting mode.
Further, if the electronic gear shifter executes the safe gear and is invalid, whether the power transmission interruption of the vehicle is valid is judged;
if the power transmission interruption is effective, the vehicle enters a safe mode, otherwise, the current gear is maintained and a prompt is given.
Further, when the vehicle is in an ignition circuit connection state, a vehicle fault state is collected,
if the vehicle has no fault, the electronic gear shifter executes normal gear shifting according to the gear shifting request of the driver;
if the vehicle has a fault, judging whether the electronic gear shifter is effective in executing normal gear shifting according to the fault state and the gear information;
and if the normal gear shifting is effectively executed, the electronic gear shifter executes the normal gear shifting and records fault information.
Further, the safe gear is a parking gear P or a neutral gear N.
According to another aspect of the present invention, there is also provided an electronic shifter control system including an electronic shifter for performing a shift operation by a user, a gear sensor for acquiring electronic shifter gear information,
the controller includes:
the normal gear judging module is used for judging whether the electronic gear shifter is effective in executing normal gear shifting according to the fault state and the gear information of the electronic gear shifter;
the safety gear judging module is used for judging whether the safety gear executed by the electronic gear shifter is effective or not when the normal gear shifting is executed inefficiently, and if the safety gear is executed effectively, the vehicle enters a safety mode;
the safety mode counting module is used for counting the times of entering the safety mode;
the correct gear shifting judging module is used for judging whether the electronic gear shifter is effective in executing correct gear shifting when the number of times of entering the safety mode is less than or equal to Y;
and the normal gear shifting statistical module is used for judging the times of executing the correct gear shifting of the electronic gear shifter when the correct gear shifting is executed effectively, and quitting the safe mode when the times of executing the correct gear shifting is larger than N, and switching the vehicle to the normal gear shifting mode.
According to yet another aspect of the invention, the invention also provides a vehicle comprising the electronic shifter control system described above.
Compared with the prior art, the invention has the following advantages:
(1) according to the gear shifting control method of the electronic gear shifter, under the condition that normal gear shifting is influenced by faults, the gear is shifted into the safe mode, and multiple gear shifting is carried out in the safe mode, so that the fault state is exited, and the vehicle can shift normally.
(2) The gear shifting control method of the electronic gear shifter can timely and effectively process accidental faults of the electronic gear shifter system, not only reduces the maintenance cost of the vehicle, but also improves the safety of the vehicle.
(3) The gear shifting control method of the electronic gear shifter is realized by software, and the hardware entity cost is not required to be increased.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
FIG. 1 is a flow chart of an electronic shifter shift control system of the present invention;
FIG. 2 is a flow chart of an electronic shifter shift control method of the present invention in one embodiment;
fig. 3 is a flow chart of an electronic shifter shift control method of the present invention in another embodiment.
FIG. 4 is a block diagram of the electronic shifter shift control system of the present invention;
fig. 5 is a controller module schematic of the electronic shifter shift control system of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Examples
Please refer to fig. 1, which is a flowchart of a shift control method of an electronic shifter according to the present invention. As shown in fig. 1, the electronic shifter shift control method of the present invention comprises the steps of:
and S1, collecting the fault state of the vehicle.
And when the vehicle is in an ignition circuit connection state, acquiring a vehicle fault state. And if the vehicle has no fault, the electronic gear shifter executes normal gear shifting according to the gear shifting request of the driver. If the vehicle is out of order, step S2 is performed. The normal gear shifting refers to the normal switching of the electronic gear shifter among gears.
And S2, processing the gear shifting fault by adopting a fault processing strategy according to the fault state and the gear shifting request of the driver. Wherein the fault state is that the vehicle fault affects normal gear shifting.
And S3, after the fault is eliminated, the electronic gear shifter executes gear shifting action according to the normal gear shifting request of the driver, so that the normal gear shifting is carried out.
According to the gear shifting control method of the electronic gear shifter, the vehicle can try to shift gears under the fault condition, and the operability of a driver is improved; in the failure mode, if the gear shifting is successfully executed, the normal gear shifting mode is recovered after multiple confirmation, so that the driving safety is greatly improved. The gear shifting control method of the electronic gear shifter is realized by software, and the hardware entity cost is not required to be increased.
Examples
Referring to fig. 2 and 3, fig. 2 is a flow chart illustrating a shift control method of an electronic shifter according to an embodiment of the present invention. Fig. 3 is a flow chart of an electronic shifter shift control method of the present invention in another embodiment. As shown in fig. 2 and 3, the electronic shifter shift control method of the present invention comprises the steps of:
and S21, judging whether the electronic gear shifter is effective in executing normal gear shifting according to the fault state and the gear information of the electronic gear shifter.
And judging whether the fault state of the vehicle influences the normal gear shifting execution of the electronic gear shifter. Under the fault condition, a driver sends a normal gear shifting request according to a fault state, the electronic gear shifter executes normal gear shifting according to the gear shifting request of the driver, if the normal gear shifting is executed effectively, the fault does not affect the normal gear shifting, at the moment, the normal gear shifting can be executed through the electronic gear shifter, and fault information is recorded. If the normal shift invalidation is performed under the failure condition, the routine proceeds to step S2. The execution of the normal gear shifting is effective, namely the electronic gear shifter can be normally switched among gears; the execution of the normal shift invalidation means that the electronic shifter cannot normally shift between the gears.
And S22, when the normal gear shifting is executed and invalid, judging whether the electronic gear shifter executes the safe gear to be valid, if the electronic gear shifter executes the safe gear to be valid, entering a safe mode, and entering the step S23, otherwise, maintaining the current gear and giving a prompt. The safety gear is a parking gear P or a neutral gear N.
And S23, judging the number of times of entering the safe mode.
The process of judging the number of times of entering the safety mode is as follows:
when the execution of normal gear shifting is invalid, judging whether the execution of safe gears by the electronic gear shifter is valid or not, and if the execution of safe gears by the electronic gear shifter is valid, recording to enter a safe mode for 1 time;
setting the position of the electronic gear shifter in the safe gear as an initial gear, judging the effective times n of the electronic gear shifter executing the safe gear, recording the times of entering the safe mode as n +1, wherein n is an integer more than or equal to 1,
the number of times that the electronic gear shifter executes the safe gear is as follows: the sum of the number of times that the electronic gear shifter enters the safe gear from the safe gear and is invalid and the number of times that the electronic gear shifter enters the safe gear from the other gears and is valid.
In another embodiment, if the number of times the vehicle enters the safe mode is more than Y, the current gear is maintained and a prompt is given to end the gear shifting operation. If the gear cannot be switched to the safe mode under the fault condition, the driver can finish gear shifting according to the received prompt, and further processes the vehicle, such as timely maintenance.
And S24, when the number of times (n +1) of entering the safe mode is less than or equal to Y, judging whether the electronic gear shifter carries out correct gear shifting. If it is effective to perform the correct shift, the routine proceeds to step S25. The execution of correct gear shifting is effective, namely the gears can be correctly switched to other gears from the safe gears, and after the gears are switched to other gears from the safe gears, the gears can be correctly switched among other gears.
And S25, judging the number of times of executing correct gear shifting by the electronic gear shifter when the correct gear shifting is executed effectively, and exiting the safety mode when the number of times of executing correct gear shifting is larger than N, and switching the vehicle to the normal gear shifting mode. In this mode, the electronic shifter performs a normal shift in accordance with the driver's gear request.
The process for determining the number of times the electronic shifter performs a correct shift is as follows:
setting the position of the electronic gear shifter in the safe gear as an initial gear, judging the effective times m of the electronic gear shifter executing other gears, wherein m is an integer more than or equal to 1,
wherein, the effectual number of times of other fender position of electron selector execution is: the sum of the number of times the electronic shifter is effective to enter other gears from the starting gear and the number of times the electronic shifter is properly shifted between other gears.
In another embodiment, when it is determined that the number of times m that a correct shift is performed is less than or equal to N, then:
judging the number of times of entering the safety mode again;
and if the number of times (N +1) of entering the safety mode is less than or equal to Y, judging whether the electronic gear shifter is effective for executing correct gear shifting again until the number of times m of executing correct gear shifting is more than N, exiting the safety mode, and switching the vehicle to the normal gear shifting mode.
The control method of the present application is described below, taking as an example the number of times Y of entering the safety mode equal to 3 and the number of times N of performing a correct shift equal to 2: when the vehicle is in a state that an ignition circuit is communicated, if a gear shifting lever of an electronic gear shifter of the vehicle is in a D gear, the vehicle is stopped or has small speed, for example, the vehicle speed does not exceed 5-10 km/h; when a driver needs to switch from the D gear to the R gear, if the vehicle has a fault, the D gear is failed to be switched to the R gear, and the fault influences normal gear shifting; at this time, the electronic gear shifter tries to switch the gear shift lever from the D gear to the N gear safety gear, if the switching is successful, the vehicle enters the safety mode for 1 time, the gear shift lever is in the N gear, the driver tries to enter the R gear from the N gear again, if the driver can not enter the R gear from the N gear, the vehicle continues to stay in the N gear, the vehicle enters the safety mode for 2 times, the driver tries to enter the R gear or the D gear from the N gear again, if the driver succeeds to enter the D gear or the R gear from the N gear, if the driver tries to enter the R gear from the D gear again, if the driver fails to switch from the D gear to the R gear, the electronic gear shift lever tries to switch the gear shift lever from the D gear to the N gear safety gear, if the switching is successful, the vehicle enters the safety mode for 3 times, at this time, whether the electronic gear shift is effective to execute the correct gear shift in the safety mode is judged according to the gear shift request of the driver, namely, if yes, recording correct gear shifting for 1 time, according to the gear shifting request of a driver, correctly switching the gear shifting lever from the D gear or the R gear to other gears again, recording correct gear shifting for 2 times, recording correct gear shifting for 3 times when the gear shifting is correctly performed again, reaching the preset gear shifting times for 2 times, exiting from the safety mode, and according to the gear shifting request of the driver, executing normal gear shifting by the electronic gear shifter until the vehicle is powered off.
It should be noted that, in the present application, the determination of the number of times of entering the safety mode and the number of times of correct gear shifting in the safety mode is a complete process from power-on to power-off of the vehicle.
In another embodiment, the present invention may further enter the P-range safety range from the R-range, and the determination process of the number of times of entering the safety mode and the number of correct gear shifts in the safety mode is similar to the above exemplary calculation manner, which is not described herein again.
According to the gear shifting control method of the electronic gear shifter, the gear shifting system can try to shift gears under the fault condition, and the operability of a driver is improved; in the failure mode, if the gear shifting is successfully executed, the normal gear shifting mode is recovered after multiple confirmation, so that the driving safety is greatly improved. The gear shifting control method of the electronic gear shifter is realized by software, and the hardware entity cost is not required to be increased.
According to the gear shifting control method of the electronic gear shifter, the failure can be timely and effectively processed by detecting the number of times of entering the safety mode and the number of times of executing correct gear shifting in the safety mode, and when the electronic gear shifter system fails, accidental failures can be eliminated according to self processing of a driver, so that the driving safety is improved.
Examples
The gear shifting control method of the electronic gear shifter comprises the following steps:
and S21, judging whether the electronic gear shifter is effective in executing normal gear shifting according to the fault state and the gear information of the electronic gear shifter.
And judging whether the fault state of the vehicle influences the normal gear shifting execution of the electronic gear shifter. Under the fault condition, a driver sends a normal gear shifting request according to a fault state, the electronic gear shifter executes normal gear shifting according to the gear shifting request of the driver, if the normal gear shifting is executed effectively, the fault does not affect the normal gear shifting, at the moment, the normal gear shifting can be executed through the electronic gear shifter, and fault information is recorded. If the normal shift is not executed under the failure condition, the process proceeds to step S201. The execution of the normal gear shifting is effective, namely the electronic gear shifter can be normally switched among gears; the execution of the normal shift invalidation means that the electronic shifter cannot normally shift between the gears.
And S22, when the normal gear shifting is executed inefficiently, judging whether the electronic gear shifter executes the safe gear or not. The safe gear is a parking gear P or a neutral gear N.
S201, if the execution of the safe gear is invalid, judging whether the power transmission interruption of the vehicle is valid, if the power transmission interruption is valid, enabling the vehicle to enter a safe mode, and entering the step S23, otherwise, maintaining the current gear and giving a prompt. Wherein power transmission interruption is active, meaning that the gearbox clutch is in a disengaged state, thereby interrupting power transmission between the engine and the driveline.
And S23, judging the number of times of entering the safe mode.
The process of judging the number of times of entering the safety mode is as follows:
when the execution of normal gear shifting is invalid, judging whether the execution of safe gears by the electronic gear shifter is valid or not, and if the execution of safe gears by the electronic gear shifter is valid, recording to enter a safe mode for 1 time;
setting the position of the electronic gear shifter in the safe gear as an initial gear, judging the effective times n of the electronic gear shifter executing the safe gear, recording the times of entering the safe mode as n +1, wherein n is an integer more than or equal to 1,
the number of times that the electronic gear shifter executes the safe gear is as follows: the sum of the number of times that the electronic gear shifter enters the safe gear from the safe gear and is invalid and the number of times that the electronic gear shifter enters the safe gear from the other gears and is valid.
In another embodiment, if the number of times (n +1) > Y the vehicle enters the safe mode, the current gear is maintained and a prompt is sent to end the gear shifting operation. If the gear cannot be switched to the safe mode under the fault condition, the driver can finish gear shifting according to the received prompt, and further process the vehicle, such as timely maintenance.
And S24, when the number of times (n +1) of entering the safe mode is less than or equal to Y, judging whether the electronic gear shifter carries out correct gear shifting. If it is effective to perform the correct shift, the routine proceeds to step S25. The execution of correct gear shifting is effective, namely the gears can be correctly switched to other gears from the safe gears, and after the gears are switched to other gears from the safe gears, the gears can be correctly switched among other gears.
And S25, judging the number of times of executing correct gear shifting by the electronic gear shifter when the correct gear shifting is executed effectively, and exiting the safety mode when the number of times of executing correct gear shifting is larger than N, and switching the vehicle to the normal gear shifting mode. In this mode, the electronic shifter performs a normal shift in accordance with the driver's gear request.
The process for determining the number of times the electronic shifter performs a correct shift is as follows:
setting the position of the electronic gear shifter in the safe gear as an initial gear, judging the effective times m of the electronic gear shifter executing other gears, wherein m is an integer more than or equal to 1,
wherein, the effectual number of times of other fender position of electron selector execution is: the sum of the number of times the electronic shifter is effective to enter other gears from the starting gear and the number of times the electronic shifter is properly shifted between other gears.
In another embodiment, when it is determined that the number of times m that a correct shift is performed is less than or equal to N, then:
judging the number of times of entering the safety mode again;
and if the number of times (N +1) of entering the safety mode is less than or equal to Y, judging whether the electronic gear shifter is effective for executing correct gear shifting again until the number of times m of executing correct gear shifting is more than N, exiting the safety mode, and switching the vehicle to the normal gear shifting mode.
The control method of the present application is described below, taking as an example that the number of times Y of entering the safety mode is equal to 3, and the number of times N of performing a correct shift is equal to 2: when the vehicle is in a state that an ignition circuit is communicated, if a gear shifting lever of an electronic gear shifter of the vehicle is in a D gear, the vehicle is stopped or has small speed, for example, the vehicle speed does not exceed 5-10 km/h; when a driver needs to switch from the D gear to the R gear, if the vehicle has a fault, the D gear is failed to be switched to the R gear, and the fault influences normal gear shifting; at the moment, the electronic gear shifter tries to switch the gear shift lever from the D gear to the N gear safety gear, if the switching fails, the power transmission of the gearbox is interrupted, the vehicle enters the safety mode for 1 time, the power transmission of the gearbox is resumed, the electronic gear shifter tries to switch the gear shift lever from the D gear to the N gear safety gear again, if the switching fails, the power transmission of the gearbox is interrupted, the vehicle enters the safety mode for 2 times, and the step of entering the safety mode is repeated until the number of times of entering the safety mode reaches 3 times; at the moment, whether the electronic gear shifter performs correct gear shifting in the safety mode is judged according to the gear shifting request of the driver, namely whether the gear shifting lever can correctly enter the D gear or the R gear from the N gear is judged, if yes, correct gear shifting is recorded for 1 time, according to the gear shifting request of the driver, the gear shifting lever is correctly switched to other gears from the D gear or the R gear again, correct gear shifting is recorded for 2 times, correct gear shifting is recorded for 3 times if correct gear shifting is performed again, the preset gear shifting times are reached for 2 times, the safety mode is exited, and according to the gear shifting request of the driver, the electronic gear shifter normally shifts until the vehicle is powered off.
In another embodiment, the present invention may further enter the P-range safety range from the R-range, and the determination process of the number of times of entering the safety mode and the number of correct gear shifts in the safety mode is similar to the above exemplary calculation manner, which is not described herein again.
According to the gear shifting control method of the electronic gear shifter, the gear shifting system can try to shift gears under the fault condition, and the operability of a driver is improved; in the failure mode, if the gear shifting is successfully executed, the normal gear shifting mode is recovered after multiple confirmation, so that the driving safety is greatly improved. The gear shifting control method of the electronic gear shifter is realized by software, and the hardware entity cost is not required to be increased.
According to the gear shifting control method of the electronic gear shifter, the failure can be timely and effectively processed by detecting the number of times of entering the safety mode and the number of times of executing correct gear shifting in the safety mode, and when the electronic gear shifter system fails, accidental failures can be eliminated according to self processing of a driver, so that the driving safety is improved.
Examples
According to the electronic gear shifter gear shifting control method, after the electronic gear shifter system breaks down, the gear shifting request of a driver is tried to be executed for multiple times in the executable range of the actuator through the real-time feedback of the fault state, the gear shifting request and the actuator action, the current gear state is kept after the attempt is invalid, and a corresponding prompt is sent. The method comprises the following specific steps:
when the vehicle breaks down, if the fault affects the gear shifting execution, the safety gear cannot be entered, and the power transmission cannot be interrupted, the current gear is kept, and the driver is prompted.
And if the safe gear can be executed or the power transmission is interrupted, entering a safe mode, and attempting to execute the gear shifting request of the driver by judging whether the actuator can act again in the safe mode.
And if the gear can be shifted in the safe mode and the number of normally executed gear shifting times exceeds N times, exiting the safe mode and recovering the normal gear shifting mode.
If the gear shifting is not possible or the number of times of normally executing the gear shifting is less than N times in the safety mode, the safety gear is tried to be executed again, and the safety mode is entered;
and if the number of times of entering the safe mode is more than Y times, keeping the current gear of the vehicle and prompting the driver.
According to the gear shifting control method of the electronic gear shifter, the gear shifting system can try to shift gears under the fault condition, and the operability of a driver is improved; in the failure mode, if the gear shifting is successfully executed, the normal gear shifting mode is recovered after multiple confirmation, so that the driving safety is greatly improved. The gear shifting control method of the electronic gear shifter is realized by software, and the hardware entity cost is not required to be increased.
Examples
Next, a shift control system of an electronic shifter according to an embodiment of the present invention of the shift control method of an electronic shifter described above is explained, and its basic logic structure diagrams refer to fig. 4 and 5. For convenience of explanation, only the parts related to the embodiment of the present invention are shown, and mainly include an electronic shifter 10, a gear sensor 20, and a controller 30, the electronic shifter 10 being used to perform a user's gear shifting operation, and the gear sensor 20 being used to collect electronic shifter gear information. The controller 30 includes:
the normal gear judging module 301 is configured to judge whether normal gear shifting executed by the electronic gear shifter is effective or not according to the fault state and the gear information of the electronic gear shifter;
the safety gear judging module 302 is used for judging whether the safety gear executed by the electronic gear shifter is effective or not when the normal gear shifting is executed inefficiently, and if the safety gear is executed effectively, the vehicle enters a safety mode;
a security mode counting module 303, configured to count the number of times of entering the security mode;
a correct gear shifting judgment module 304, configured to judge whether correct gear shifting executed by the electronic gear shifter is valid or not when the number of times of entering the safety mode is less than or equal to Y;
and the normal gear shifting statistical module 305 is used for judging the number of times of executing the correct gear shifting of the electronic gear shifter when the correct gear shifting is executed effectively, and exiting the safety mode and switching the vehicle to the normal gear shifting mode when the number of times of executing the correct gear shifting is larger than N.
The invention also provides a vehicle comprising the electronic gear shifter control system.
According to the gear shifting control system of the electronic gear shifter, the gear shifting system can try to shift gears under the fault condition, so that the operability of a driver is improved; in the failure mode, if the gear shifting is successfully executed, the normal gear shifting mode is recovered after multiple confirmation, so that the driving safety is greatly improved. The gear shifting control method of the electronic gear shifter is realized by software, and the hardware entity cost is not required to be increased.
According to the gear shifting control system of the electronic gear shifter, the failure can be timely and effectively processed by detecting the number of times of entering the safety mode and the number of times of executing correct gear shifting in the safety mode, and when the electronic gear shifter system fails, accidental failures can be eliminated according to self processing of a driver, so that the driving safety is improved.
The foregoing description has disclosed fully preferred embodiments of the present invention. It should be noted that those skilled in the art can make modifications to the embodiments of the present invention without departing from the scope of the appended claims. Accordingly, the scope of the appended claims is not to be limited to the specific embodiments described above.
Claims (10)
1. A gear shifting control method of an electronic gear shifter is characterized by comprising the following steps: the control method comprises the following steps:
judging whether the electronic gear shifter executes normal gear shifting effectively or not according to the fault state and the gear information of the electronic gear shifter;
if the execution of the normal gear shifting is invalid, judging whether the execution of the safe gear of the electronic gear shifter is valid, and if the execution of the safe gear is valid, enabling the vehicle to enter a safe mode;
judging the number of times of entering a safety mode;
when the number of times of entering the safety mode is less than or equal to Y, judging whether the electronic gear shifter executes correct gear shifting effectively;
and when the correct gear shifting is effectively executed, judging the number of times of executing the correct gear shifting by the electronic gear shifter, and when the number of times of executing the correct gear shifting is larger than N, exiting the safety mode, and switching the vehicle to a normal gear shifting mode.
2. The control method according to claim 1, characterized in that:
the process of judging the number of times of entering the safety mode is as follows:
when the execution of normal gear shifting is invalid, judging whether the execution of safe gears by the electronic gear shifter is valid or not, and if the execution of safe gears by the electronic gear shifter is valid, recording to enter a safe mode for 1 time;
setting the position of the electronic gear shifter in the safe gear as an initial gear, judging the effective times n of the electronic gear shifter executing the safe gear, recording the times of entering the safe mode as n +1, wherein n is an integer more than or equal to 1,
the number of times that the electronic gear shifter executes the safe gear is as follows: the sum of the number of times that the electronic gear shifter enters the safe gear from the safe gear and is invalid and the number of times that the electronic gear shifter enters the safe gear from the other gears and is valid.
3. The control method according to claim 2, characterized in that:
and if the number of times of the vehicle entering the safe mode is more than Y, maintaining the current gear and giving a prompt.
4. The control method according to claim 2, characterized in that:
the process for determining the number of times the electronic shifter performs a correct shift is as follows:
setting the position of the electronic gear shifter in the safe gear as an initial gear, judging the effective times m of the electronic gear shifter executing other gears, wherein m is an integer more than or equal to 1,
wherein, the effectual number of times of other fender position of electron selector execution is: the sum of the number of times the electronic shifter is effective to enter other gears from the starting gear and the number of times the electronic shifter is properly shifted between other gears.
5. The control method according to claim 4, characterized in that:
when the number m of times of executing the correct gear shifting is judged to be less than or equal to N, then:
judging the number of times of entering the safety mode again;
and if the number of times (N +1) of entering the safety mode is less than or equal to Y, judging whether the electronic gear shifter is effective for executing correct gear shifting again until the number of times m of executing correct gear shifting is more than N, exiting the safety mode, and switching the vehicle to the normal gear shifting mode.
6. The control method according to claim 1, characterized in that:
if the electronic gear shifter executes the safe gear and is invalid, judging whether the power transmission interruption of the vehicle is valid or not;
if the power transmission interruption is effective, the vehicle enters a safe mode, otherwise, the current gear is maintained and a prompt is given.
7. The control method according to claim 1, characterized in that:
when the vehicle is in the ignition circuit connection state, the vehicle fault state is collected,
if the vehicle has no fault, the electronic gear shifter executes normal gear shifting according to the gear shifting request of the driver;
if the vehicle has a fault, judging whether the electronic gear shifter is effective in executing normal gear shifting according to the fault state and the gear information;
and if the normal gear shifting is effectively executed, the electronic gear shifter executes the normal gear shifting and records fault information.
8. The control method according to claim 1, characterized in that:
the safe gear is a parking gear P or a neutral gear N.
9. An electronic shifter control system, characterized by: the system comprises an electronic gear shifter, a gear sensor and a controller, wherein the electronic gear shifter is used for executing gear shifting operation of a user, the gear sensor is used for collecting gear information of the electronic gear shifter,
the controller includes:
the normal gear judging module is used for judging whether the electronic gear shifter is effective in executing normal gear shifting according to the fault state and the gear information of the electronic gear shifter;
the safety gear judging module is used for judging whether the safety gear executed by the electronic gear shifter is effective or not when the normal gear shifting is executed inefficiently, and if the safety gear is executed effectively, the vehicle enters a safety mode;
the safety mode counting module is used for counting the times of entering the safety mode;
the correct gear shifting judging module is used for judging whether the electronic gear shifter is effective in executing correct gear shifting when the number of times of entering the safety mode is less than or equal to Y;
and the normal gear shifting statistical module is used for judging the times of executing the correct gear shifting of the electronic gear shifter when the correct gear shifting is executed effectively, and quitting the safe mode when the times of executing the correct gear shifting is larger than N, and switching the vehicle to the normal gear shifting mode.
10. A vehicle, characterized in that: comprising the electronic shifter control system of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810379773.3A CN108749811B (en) | 2018-04-25 | 2018-04-25 | Gear shifting control method and system of electronic gear shifter and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810379773.3A CN108749811B (en) | 2018-04-25 | 2018-04-25 | Gear shifting control method and system of electronic gear shifter and vehicle |
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| CN108749811A CN108749811A (en) | 2018-11-06 |
| CN108749811B true CN108749811B (en) | 2020-05-12 |
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| CN111994035A (en) * | 2019-05-10 | 2020-11-27 | 广州汽车集团股份有限公司 | Gear shifting control method, device and system for unmanned vehicle and unmanned vehicle |
| CN114396474B (en) * | 2021-12-21 | 2023-09-22 | 中国第一汽车股份有限公司 | Method and device for initializing vehicle gear signal, electronic equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6704633B2 (en) * | 1999-05-04 | 2004-03-09 | Ford Global Technologies, Llc | Position sensing device and shift device fault management in an electronic shift four-wheel drive system |
| JP5359459B2 (en) * | 2009-03-27 | 2013-12-04 | トヨタ自動車株式会社 | Vehicle shift control device |
| JP5275262B2 (en) * | 2010-01-05 | 2013-08-28 | 日立オートモティブシステムズ株式会社 | Control device and control method for automatic transmission |
| CN103982646B (en) * | 2014-06-03 | 2016-06-15 | 盛瑞传动股份有限公司 | Automatic gear-box actively enters control method and the system of limp-home mode |
| JP6222015B2 (en) * | 2014-09-01 | 2017-11-01 | マツダ株式会社 | Control device and control method for automatic transmission |
| CN106499812B (en) * | 2016-12-16 | 2018-04-13 | 安徽江淮汽车集团股份有限公司 | A kind of automatic transmission shift fault control method and system |
| CN106515720B (en) * | 2017-01-03 | 2019-03-05 | 重庆长安汽车股份有限公司 | A kind of Self-resetting gear system and control method |
| CN106949234B (en) * | 2017-04-27 | 2018-10-09 | 上海汽车变速器有限公司 | Double-clutch speed changer functional safety monitoring method |
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