CN104019216A - Method and device for controlling AMT gear selecting and shifting executing mechanism - Google Patents

Method and device for controlling AMT gear selecting and shifting executing mechanism Download PDF

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Publication number
CN104019216A
CN104019216A CN201410203319.4A CN201410203319A CN104019216A CN 104019216 A CN104019216 A CN 104019216A CN 201410203319 A CN201410203319 A CN 201410203319A CN 104019216 A CN104019216 A CN 104019216A
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CN
China
Prior art keywords
gear
selecting
engage
gear shift
shift
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Granted
Application number
CN201410203319.4A
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Chinese (zh)
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CN104019216B (en
Inventor
韩尔樑
王庆来
周之光
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Weichai Power Co Ltd
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Weichai Power Co Ltd
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Priority to CN201410203319.4A priority Critical patent/CN104019216B/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02—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 the signals used
    • F16H61/0202—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 the signals used the signals being electric
    • F16H61/0204—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 the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
    • F16H61/0213—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 the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/1208—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures with diagnostic check cycles; Monitoring of failures
    • F16H2061/1216—Display or indication of detected failures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/1232—Bringing the control into a predefined state, e.g. giving priority to particular actuators or gear ratios
    • 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
    • F16H2061/1284—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 sensor
    • 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
    • F16H2302/00—Determining the way or trajectory to new ratio, e.g. by determining speed, torque or time parameters for shift transition
    • F16H2302/06—Determining timing parameters of shifting, e.g. start of shifting
    • 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
    • F16H2306/00—Shifting
    • F16H2306/40—Shifting activities

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)

Abstract

The invention provides a method and device for controlling an AMT gear selecting and shifting executing mechanism. The method and device are applied in the gear selecting and shifting process, and the control method includes the steps of determining that gear shifting is failed, judging whether a gear selecting position sensor breaks down or not, controlling a gear shifting finger to move to the position, corresponding to a target gear, of the gear shifting finger in the gear selecting direction in a first driving time mode to complete the gear selecting process if the gear selecting position sensor breaks down, judging whether a gear engaging position sensor breaks down or not, and controlling the gear shifting finger to move to the position, corresponding to the target gear, of the gear shifting finger in the gear engaging direction in a second driving time mode to complete the gear engaging process if the gear engaging position sensor breaks down. In this way, by means of the control method, whether the position sensor breaks down or not can be timely found, remedial actions can be taken after it is found that the position sensors break down, the gear of a vehicle can be engaged in time, the problem that the gear of the vehicle cannot be engaged for a long time, so that power is off is solved, and the risk of road accidents is reduced.

Description

The controlling method of AMT gear-selecting and shifting executing mechanism and device
Technical field
The present invention relates to auto parts and components field, particularly a kind of controlling method of AMT gear-selecting and shifting executing mechanism and device.
Background technique
Along with the raising that people require steering vehicle travelling comfort, commerial vehicle is also used automatic transmission case to replace manual transmission gradually, to alleviate driver's labor intensity.And the most AMT gearboxes (mechanical automatic gearbox) of installing of commercial car.
AMT gearbox is to develop on the basis of MT (manual transmission), in AMT gearbox, adopts an automatic gear-selecting and shifting executing mechanism to replace manually-operable to realize and changes gear.Automatically on gear-selecting and shifting executing mechanism, comprise position transducer, this position transducer is whether put in place the source of basis for estimation of each minute action executing of current gear identification and gear shift.But this position transducer is easy to damage under the effect of external force.For example, coil type position transducer easily burns till short circuit, and plug connector formula position transducer easily becomes flexible or comes off, and the more Hall-type position transducer of especially current use easily suffers strong electromagnetic and lost efficacy.
The AMT of prior art selects gear-shifting control method; in gearshift procedure; after gear shift failure; conventionally can then pluck shelves, engage a gear operation; and whether checksum location sensor there is not fault; so existing AMT selects the very difficult detection position of gear-shifting control method sensor whether fault has occurred.And, in the prior art, after finding that position transducer breaks down, also cannot adopt remedial measures, after this just likely causes not having for a long time gearing in, vehicle power interrupts, therefore, existing this controlling method likely causes vehicle cut, and traffic accident easily occurs.
Summary of the invention
In view of this, the invention provides a kind of controlling method and device of AMT gear-selecting and shifting executing mechanism, with after solving above-mentioned discovery position transducer and breaking down, the technical problem that cannot adopt remedial measures.
In order to solve the problems of the technologies described above, the present invention has adopted following technological scheme:
A kind of controlling method of AMT gear-selecting and shifting executing mechanism, be applied to select in gearshift procedure, described AMT gear-selecting and shifting executing mechanism comprises that gear selection mechanism, gearshift mechanism and gear shift refer to, described AMT gear-selecting and shifting executing mechanism also comprises for detection of described gear shift and refers to the gear selecting position transducer of the position in gear selecting direction and for detection of described gear shift, refer to the engage a gear position transducer of the position in engage a gear direction; Described controlling method comprises:
Determine gear shift failure;
Judge whether described gear selecting position transducer breaks down, if so, adopt the first driving time pattern to control described gearshift and refer to move to the gear shift that target gear is corresponding and refer to the position in gear selecting direction, to complete gear selecting process; Judge whether described engage a gear position transducer breaks down, if so, adopt the second driving time pattern to control described gear shift and refer to move to the gear shift that target gear is corresponding and refer to the position in engage a gear direction, to complete engage a gear process;
Wherein, described target gear is the gear adapting with current vehicle speed;
Described the first driving time pattern is that gear shift refers to that the time of the driving in gear selecting direction surpasses after very first time threshold value, and AMT controller is controlled described gear shift according to current vehicle speed and referred to move to the gear shift that target gear is corresponding and refer to the position in gear selecting direction;
Described the second driving time pattern is that gear shift refers to that the time of the driving in engage a gear direction surpasses after the second time threshold, and AMT controller is controlled described gear shift according to current vehicle speed and referred to move to the gear shift that target gear is corresponding and refer to the position in engage a gear direction.
Preferably, described in complete engage a gear process after, also comprise:
Judge that AMT gearbox input shaft angular acceleration whether in preset range, if so, determines engage a gear success.
Preferably, after described definite engage a gear success, also comprise:
Judge that whether the velocity ratio of AMT gearbox actual-gear and the velocity ratio of target gear be consistent, if so, determine and hang up target gear.
Preferably, describedly judge whether described gear selecting position transducer breaks down, also comprise: if not, adopt the position signal of described gear selecting position transducer to control described gear shift and refer to move to gear shift corresponding to described target gear and refer to the position in gear selecting direction, to complete gear selecting process; Describedly judge whether described engage a gear position transducer breaks down, also comprise: if not, adopt the position signal of described engage a gear position transducer to control described gear shift and refer to move to gear shift corresponding to described target gear and refer to the position in engage a gear direction, to complete engage a gear process.
Preferably, the position signal of the described gear selecting position transducer of described employing is controlled described gear shift and is referred to move to the required time of process that gear shift corresponding to described target gear refer to the position in gear selecting direction and meet the first shortest time condition;
And/or,
The position signal of the described engage a gear position transducer of described employing is controlled described gear shift and is referred to move to required satisfied the second shortest time condition of time of process that gear shift corresponding to described target gear refers to the position in engage a gear direction.
Preferably, described definite gear shift failure, specifically comprises:
When plucking grade driving mechanism driving time over the first maximum duration, determine gear shift failure;
And/or,
When gear selecting driving mechanism driving time surpasses the second maximum duration, determine gear shift failure;
And/or,
When engage a gear driving mechanism driving time surpasses the 3rd maximum duration, determine gear shift failure.
Preferably, describedly judge that whether described gear selecting position transducer breaks down, and specifically comprises:
Gear selecting driving mechanism drives described gear shift to refer to move predetermined amount of time according to predetermined direction, so that described gear shift refers to move to precalculated position;
Judge that the described gear shift that described gear selecting position transducer detects refers to that whether the position signal in gear selecting direction is consistent with described precalculated position; If so, gear selecting position transducer does not break down, and if not, gear selecting position transducer breaks down;
And/or,
Describedly judge that whether described engage a gear position transducer breaks down, and specifically comprises:
Pluck a grade driving mechanism and drive described gear shift to refer to move, so that described gear shift refers in position corresponding to neutral gear;
Judge that whether the position that the position signal gear shift corresponding with described neutral gear that described gear shift that described engage a gear position transducer detects refers to refer to is consistent, if so, engage a gear position transducer does not break down, and if not, engage a gear position transducer breaks down.
Preferably, when described gear selecting position transducer breaks down and/or when described engage a gear position transducer breaks down, outwards quote fault message.
A kind of control gear of AMT gear-selecting and shifting executing mechanism, be applied to select in gearshift procedure, described AMT gear-selecting and shifting executing mechanism comprises that gear selection mechanism, gearshift mechanism and gear shift refer to, described AMT gear-selecting and shifting executing mechanism also comprises for detection of described gear shift and refers to the gear selecting position transducer of the position in gear selecting direction and for detection of described gear shift, refer to the engage a gear position transducer of the position in engage a gear direction; Described control gear comprises:
Determining unit, for determining gear shift failure;
The first judging unit, for judging whether described gear selecting position transducer breaks down;
The first control unit, for when described gear selecting position transducer breaks down, adopts the first driving time pattern to control described gearshift and refers to move to the gear shift that target gear is corresponding and refer to the position in gear selecting direction, to complete gear selecting process;
The second judging unit, for judging whether described engage a gear position transducer breaks down;
The second control unit, for when described engage a gear position transducer breaks down, adopts the second driving time pattern to control described gear shift and refers to move to the gear shift that target gear is corresponding and refer to the position in engage a gear direction, to complete engage a gear process;
Wherein, described target gear is the gear adapting with current vehicle speed;
Described the first driving time pattern is that gear shift refers to that the time of the driving in gear selecting direction surpasses after very first time threshold value, and AMT controller is controlled described gear shift according to current vehicle speed and referred to move to the gear shift that target gear is corresponding and refer to the position in gear selecting direction;
Described the second driving time pattern is that gear shift refers to that the time of the driving in engage a gear direction surpasses after the second time threshold, and AMT controller is controlled described gear shift according to current vehicle speed and referred to move to the gear shift that target gear is corresponding and refer to the position in engage a gear direction.
Preferably, also comprise:
The 3rd judging unit, for judging that AMT gearbox input shaft angular acceleration whether in preset range, if so, determines engage a gear success.
Preferably, also comprise:
The 4th judging unit, whether consistent for judging the velocity ratio of AMT gearbox actual-gear and the velocity ratio of target gear, if so, determine and hang up target gear.
Preferably, also comprise:
The 3rd control unit, while not breaking down for elected file location sensor, adopts the position signal of described gear selecting position transducer to control described gear shift and refers to move to gear shift corresponding to described target gear and refer to the position in gear selecting direction, to complete gear selecting process;
The 4th control unit, for when engage a gear position transducer does not break down, adopts the position signal of described engage a gear position transducer to control described gear shift and refers to move to gear shift corresponding to described target gear and refer to the position in engage a gear direction, to complete engage a gear process.
Preferably, described the first judging unit, comprising:
The first driven element unit, for adopting gear selecting driving mechanism to drive gear shift to refer to move predetermined amount of time according to predetermined direction, so that described gear shift refers to move to precalculated position;
The first judgment sub-unit, whether consistent with described precalculated position for judging the position signal that gear shift that described gear selecting position transducer detects refers to, if so, gear selecting position transducer does not break down, and if not, gear selecting position transducer breaks down;
And/or,
Described the second judging unit, comprising:
The second driven element unit, plucks a grade driving mechanism for employing and drives described gear shift to refer to move, so that described gear shift refers in position corresponding to neutral gear;
The second judgment sub-unit, whether consistent for judging the position that the position signal gear shift corresponding with described neutral gear that described gear shift that described engage a gear position transducer detects refers to refer to, if so, engage a gear position transducer does not break down, if not, engage a gear position transducer breaks down.
Preferably, also comprise:
Alarm unit, for when described gear selecting position transducer breaks down and/or when described engage a gear position transducer breaks down, outwards quotes fault message.
The present invention has following beneficial effect:
Compared to prior art, the controlling method of AMT gear-selecting and shifting executing mechanism provided by the invention, when elected file location sensor breaks down, adopt the first driving time pattern control gear shift to refer to move to gear shift corresponding to target gear adapting with current vehicle speed and refer to the position in gear selecting direction, when engage a gear position transducer breaks down, adopt the second driving time pattern gear shift to refer to move to gear shift corresponding to target gear adapting with current vehicle speed and refer to the position in engage a gear direction.Therefore, after position transducer breaks down, controlling method provided by the invention can by driving time control mode control that gear shift refers in gear selecting direction and engage a gear direction on movement, thereby complete engage a gear process.Therefore, controlling method provided by the invention can find that fault has occurred position transducer in time, and after finding that position transducer breaks down, can adopt remedial measures, by time control mode, control shifting process, can make vehicle hang up in time gear, avoid occurring that the long-time extension of vehicle does not perform, the problem of power interruption, has reduced the risk that traffic accident occurs.
Accompanying drawing explanation
In order to be expressly understood technological scheme of the present invention, to describing required accompanying drawing in the embodiment of the present invention, be briefly described below.Apparently, these accompanying drawings are only part embodiment's accompanying drawings of the present invention, and other accompanying drawing that those of ordinary skills obtain under the prerequisite of not paying creative work is all at the row of protection scope of the present invention.
Fig. 1 is the controlling method schematic flow sheet of the AMT gear-selecting and shifting executing mechanism of the embodiment of the present invention one;
Fig. 2 is the structural representation of pneumatic gear-selecting and shifting executing mechanism;
Fig. 3 is the controlling method schematic flow sheet of the AMT gear-selecting and shifting executing mechanism of the embodiment of the present invention two;
Fig. 4 is the control gear schematic diagram of the AMT gear-selecting and shifting executing mechanism of the embodiment of the present invention three.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
As described in background, the controlling method of existing AMT gear-selecting and shifting executing mechanism, after gear shift failure, can attempt continuing gear shift, if do not hang gear for a long time, may cause the long-time power interruption of vehicle.And, in existing controlling method, after gear shift failure, do not detect gear selecting position transducer and whether engage a gear position transducer breaks down, even and find that position transducer breaks down, also cannot adopt remedial measures.
For after finding that position transducer breaks down, adopt remedial measures in time, the invention provides a kind of controlling method of AMT gear-selecting and shifting executing mechanism.
It should be noted that, the AMT gear-selecting and shifting executing mechanism that the present invention adopts is the conventional AMT gear-selecting and shifting executing mechanism in related domain, it comprises that gear selection mechanism, gearshift mechanism and gear shift refer to, the position referring in order to detect gear shift, described AMT gear-selecting and shifting executing mechanism also comprises for detection of described gear shift and refers to the gear selecting position transducer of the position in gear selecting direction and for detection of described gear shift, refer to the engage a gear position transducer of the position in engage a gear direction.
In addition, it should be noted that, the controlling method of AMT gear-selecting and shifting executing mechanism provided by the invention is applied to select in gearshift procedure.
Embodiment one
Referring to Fig. 1, the controlling method of the AMT gear-selecting and shifting executing mechanism that the embodiment of the present invention one provides comprises the following steps:
S11, determine gear shift failure:
It should be noted that, in selecting gearshift procedure, gear shift refers under the driving of driving mechanism, if normally worked, can reach within a certain period of time precalculated position.Described precalculated position is included in position in gear selecting direction and/or the position in engage a gear direction.
But if gear shift refers to be stuck or position transducer breaks down, gear shift refers to after the driving of long period, does not also reach precalculated position, now think that gear shift is failed in moving process.
In order to prevent that gear shift from referring to be stuck or can not realize correctly gear shift because position transducer breaks down in moving process, can the action in each minute in gearshift procedure set a maximum duration, if still do not reach precalculated position after action in this minute surpasses predetermined maximum duration, think that gear shift is failed.
It should be noted that, in embodiments of the present invention, described AMT shift-selecting and changing actuating mechanism can be pneumatic gear-selecting and shifting executing mechanism, can be also electronic gear-selecting and shifting executing mechanism.When being pneumatic gear-selecting and shifting executing mechanism, gear shift refers to can be by solenoid-driven, and driving mechanism described above is solenoid valve, and described gear selection mechanism is gear selecting cylinder, and described gearshift mechanism is gear shifting cylinder.When being electronic gear-selecting and shifting executing mechanism, gear shift refers to can be by step electric machine and engage a gear motor and actuator drives thereof, this step electric machine and engage a gear motor are by the SC sigmal control of PWM (pulse duration modulation), and the pulse number driving by PWM or time reach the effect identical with solenoid valve.
In selecting gearshift procedure, action in its minute comprises gear selecting, plucks shelves and engage a gear.Therefore,, when AMT gear-selecting and shifting executing mechanism is pneumatic gear-selecting and shifting executing mechanism, in embodiments of the present invention, can determine gear shift failure by following several method:
The first: when plucking grade time of solenoid-driven gear shift piston over after the first maximum duration, gear shift piston does not arrive the neutral position of gear shifting cylinder, determines gear shift failure.Wherein, the first maximum duration is to pluck under the driving of grade solenoid valve, and gear shift piston moves to the required maximum duration in neutral position of gear shifting cylinder and adds certain surplus, and described surplus can be for normally plucking the twice of gear needed time.
The second: surpass after the second maximum duration when the time of gear selecting solenoid-driven gear selecting piston, gear selecting piston does not arrive behind the precalculated position of gear selecting cylinder, determines gear shift failure.Wherein, the second maximum duration is under the driving of gear selecting solenoid valve, and the required maximum duration in precalculated position that gear selecting piston moves to gear selecting cylinder adds certain surplus, and described surplus can be for normally plucking the twice of gear needed time.
The third: when the time of engage a gear solenoid-driven gear shift piston, surpass after the 3rd maximum duration, gear shift piston does not reach the precalculated position of gear shifting cylinder, determines gear shift failure.Wherein, the 3rd maximum duration is under the driving of engage a gear solenoid valve, and the required maximum duration in precalculated position that gear shift piston moves to gear shifting cylinder adds certain surplus, and described surplus can be for normally plucking the twice of gear needed time.
It should be noted that, in pneumatic shift-selecting and changing actuating mechanism, the moving belt of gear selecting piston is moved shelves and is referred to the movement in gear selecting direction, when gear selecting piston moves to position corresponding to target gear, the gear shift of its drive refers to also move to the position that target gear is corresponding, therefore, by the position of gear selecting piston, can learn that gear shift refers to the position in gear selecting direction.Equally, by the position of gear shift piston, can learn that gear shift refers to the position in engage a gear direction.
When AMT gear-selecting and shifting executing mechanism is electronic gear-selecting and shifting executing mechanism, it does not have gear selecting piston and gear shift piston, by step electric machine and transmission device thereof, directly drive gear shift to refer to the movement in gear selecting direction, by engage a gear motor and transmission device thereof, directly drive gear shift to refer to the movement in engage a gear direction.
When gear shift referred to after the driven scheduled time, by judging gear shift refers to whether reach precalculated position and judges that whether gear shift is failed.When gear shift refers to reach behind precalculated position, gear shift success, when it does not reach precalculated position, gear shift failure.
S12, judge whether gear selecting position transducer breaks down:
In selecting gearshift procedure, more particularly, when plucking gear action, engage a gear action and gear selecting action generation, in order to prevent repeatedly gearshift procedure back and forth, need to judge whether gear selecting position transducer breaks down.In embodiments of the present invention, can judge whether gear selecting position transducer breaks down by judging that whether position that gear shift that the position signal of gear selecting position transducer and gear selecting driving mechanism drive refers to is consistent.If the position that the gear shift that the position signal of gear selecting position transducer and gear selecting driving mechanism drive refers to is inconsistent, gear selecting position transducer breaks down, execution step S13, if the position consistency that the gear shift that the position signal of gear selecting position transducer and gear selecting driving mechanism drive refers to, gear selecting position transducer does not break down, execution step S14.
Take pneumatic gear-selecting and shifting executing mechanism as example, as shown in Figure 2, comprise that gear selecting cylinder 2 and gear shifting cylinder 3 and gear shift refer to 5, wherein, in gear selecting cylinder 2, comprise gear selecting piston 1, in gear shifting cylinder 3, comprise gear shift piston 4.Wherein, the Sports band of gear selecting piston 1 and gear shift piston 4 is moved shelves and is referred to 5 motions accordingly.
Wherein, gear shift refers to that 5 carry out engage a gear for promoting declutch shift shaft, makes gear engagement, and it is similar to the engage a gear that hand shift handle carries out and stirs.
Wherein, the air inlet/relief opening position on gear selecting cylinder 2 and number are determined by gear-selecting and shifting executing mechanism and gear number.Be characterized in, by solenoid valve, open certain or certain a few suction ports, gear selecting piston 1 can be driven to a certain precalculated position, if when driving time reaches requirement, the position signal that the gear shift that gear selecting position transducer detects refers to shows that the physical location of gear selecting piston 1 is also just in time on this precalculated position, the signal of judging gear selecting position transducer is normal, gear selecting position transducer do not break down or gear selecting actuator working properly, otherwise gear selecting position transducer breaks down or gear selecting actuator operation irregularity.Yet in practical work process, position transducer is easy to break down, so, in embodiments of the present invention, if the signal of position transducer is undesired, think that position transducer breaks down.
According to above-mentioned introduction, when described AMT shift-selecting and changing actuating mechanism is pneumatic gear-selecting and shifting executing mechanism, in embodiments of the present invention, judge whether gear selecting position transducer breaks down, can be by the following method:
A1, the gear shift of gear selecting solenoid-driven refer to move predetermined amount of time according to predetermined direction, so that described gear shift refers to move to precalculated position:
Particularly, suction port and/or relief opening on gear selecting electromagnetic valve gear selecting cylinder, drive gear selecting piston to move predetermined amount of time according to predetermined direction, so that described gear shift refers to move to precalculated position.Described precalculated position is that gear shift refers to the position reaching in theory according to the direction of gear selecting solenoid-driven.
A2, judge that whether the position signal that gear shift that gear selecting position transducer detects refers to is consistent with precalculated position:
If the position signal that the gear shift that gear selecting position transducer detects refers to is consistent with precalculated position, that is to say, the position consistency that the position signal that the gear shift that gear selecting position transducer detects refers to and the gear shift of solenoid-driven refer to, gear selecting position transducer does not break down, otherwise gear selecting position transducer breaks down.
S13, adopt the first driving time pattern to control described gear shift to refer to move to gear shift corresponding to described target gear and refer to the position in gear selecting direction:
After elected file location sensor breaks down, in order to adopt remedial measures, in order to make vehicle can continue to hang up gear, keep normally travelling, the present embodiment adopts the first driving time pattern to control described gear shift to refer to move to gear shift corresponding to described target gear and refer to the position in gear selecting direction.
In inventive embodiments, described the first driving time pattern is to surpass after very first time threshold value when gear selecting driving mechanism drives the time that gear shift refers to, AMT controller is controlled described gear shift according to current vehicle speed and referred to move to gear shift corresponding to described target gear and refer to the position in gear selecting direction.The gear shift that described in this, target gear is corresponding refers to that the position in gear selecting direction is that gear shift corresponding to gear adapting with current vehicle speed refers to residing position.Wherein, target gear is the gear adapting with current vehicle speed.Wherein, very first time threshold value is that gear selecting driving mechanism refers to be driven into the required maximum duration in the first precalculated position by gear shift.Wherein, when AMT gear-selecting and shifting executing mechanism is pneumatic gear-selecting and shifting executing mechanism, gear selecting driving mechanism is gear selecting solenoid valve, and when AMT gear-selecting and shifting executing mechanism is electronic gear-selecting and shifting executing mechanism, gear selecting driving mechanism is motor and driving mechanism thereof.
S14, adopt the position signal of described gear selecting position transducer to control described gear shift to refer to move to gear shift corresponding to described target gear and refer to the position in gear selecting direction:
If gear selecting position transducer does not break down, still adopt normal position signal control mode to control gear shift and refer to move to gear shift corresponding to described target gear and refer to the position in gear selecting direction.
In addition; the action referring in order to ensure gear shift puts in place; prevent the signal error feedback that sensor fluctuation causes; at the position signal that adopts gear selecting position transducer, control described gear shift and refer to move to gear shift corresponding to described target gear and refer in the process of the position in gear selecting direction, meet the first the shortest driving time condition.That is to say, drive gear shift to refer to move to gear shift corresponding to described target gear and refer to that the time of this process of position in gear selecting direction is not less than the first the shortest driving time.Described the first the shortest driving time refers to that gear shift refers to move to the gear shift that target gear is corresponding and refers to the needed shortest time of this process of position in gear selecting direction.
S15, according to gear shift corresponding to described target gear, refer to that the position in gear selecting direction completes engage a gear process:
As everyone knows, gearshift procedure is divided into gear selecting action and engage a gear action, and engage a gear action be according to the execution result of gear selecting action be gear shift refer in gear selecting direction position realization gear is suspended on target gear.
Therefore, this step refers to that according to gear shift gear shift corresponding to residing described target gear refers to that the position in gear selecting direction changes to gear on target gear, thereby completes engage a gear process.
Above-mentioned steps S12 to S15 is a series of actions by judging whether gear selecting position transducer breaks down and carry out.In fact, in definite gear shift failure, also need execution to judge whether engage a gear position transducer breaks down and carry out the action that gearshift procedure need to be carried out.Specifically referring to step S12 ' to step S14 '.
S12 ', judge whether engage a gear position transducer breaks down:
Because, gear selecting actuator and gear-shifting actuating mechanism are two piths in AMT gear-selecting and shifting executing mechanism, therefore, and in determining the process whether gear shift is failed, not only to judge whether gear selecting position transducer breaks down, also will judge whether engage a gear position transducer breaks down.With to judge whether gear selecting position transducer breaks down similar, also can judge whether engage a gear position transducer breaks down by judging that whether position that gear shift that the position signal of engage a gear position transducer drives with gear shift driving mechanism in gear-shifting actuating mechanism refers to is consistent.If engage a gear position transducer breaks down, execution step S13 ', if engage a gear position transducer does not break down, execution step S14 '.
It should be noted that, while moving due to the execution engage a gear at gearshift procedure, engage a gear position transducer may be subject to external force impact and cause position signal not conform to reality, therefore, in order to eliminate this impact, in gearshift procedure, whether position that the signal of the position transducer when plucking grade refers to gear shift is consistent judges whether engage a gear position transducer breaks down.When plucking grade, gear is in neutral gear, and now gear shift refers in position corresponding to neutral gear.Therefore, the embodiment of the present invention judges whether engage a gear position transducer breaks down, can be by the following method:
B1, plucking grade driving mechanism, to drive a gear shift to refer to mobile, so that described gear shift points to, reaches the position that neutral gear is corresponding:
Plucking the driving direction of grade driving mechanism when plucking grade and time, to drive gear shift to refer to mobile, so that described gear shift points to, reaches the position that neutral gear is corresponding.
B2, judge that whether the position that the position signal gear shift corresponding with neutral gear that gear shift that engage a gear position transducer detects refers to refer to is consistent:
If the position consistency that the position signal gear shift corresponding with neutral gear that the gear shift that engage a gear position transducer detects refers to refers to, engage a gear position transducer does not break down, otherwise engage a gear position transducer breaks down.
It should be noted that, when AMT gear-selecting and shifting executing mechanism is pneumatic gear-selecting and shifting executing mechanism, the described gear driving mechanism of plucking is for plucking gear solenoid valve, when AMT gear-selecting and shifting executing mechanism is electronic gear-selecting and shifting executing mechanism, described in pluck that to keep off driving mechanism be motor and driving mechanism thereof.In addition, when AMT gear-selecting and shifting executing mechanism is pneumatic gear-selecting and shifting executing mechanism, also can be when plucking grade the position that gear shift refers to while replacing plucking grade, the position of engage a gear piston judge whether engage a gear position transducer breaks down.Whether the position signal of the engage a gear piston that now, engage a gear position transducer detects when plucking grade is consistent with the neutral position of gear shifting cylinder judges.When position signal represents engage a gear piston, be positioned at the neutral position of gear shifting cylinder, engage a gear position transducer does not break down, otherwise, break down.
S13 ', adopt the second driving time pattern to control described gear shift to refer to move to the gear shift that target gear is corresponding and refer to the position in engage a gear direction, to complete engage a gear process:
If engage a gear position transducer breaks down, in order to make vehicle hang up in time gear, the present embodiment adopts the second driving time pattern to control gear shift to refer to move to the gear shift that target gear is corresponding and refer to the position in engage a gear direction, to complete engage a gear process.
It should be noted that, the second driving time pattern is for driving the time that gear shift refers to surpass after the second time threshold when engage a gear driving mechanism, and AMT controller refers to move to according to current vehicle speed control gear shift the gear shift that target gear is corresponding and refers to the position in engage a gear direction.Wherein, target gear is the gear adapting with current vehicle speed.
It should be noted that, when AMT gear-selecting and shifting executing mechanism is pneumatic gear-selecting and shifting executing mechanism, the described driving mechanism of putting into gear is for the solenoid valve of putting into gear, when AMT gear-selecting and shifting executing mechanism is electronic gear-selecting and shifting executing mechanism, described in the driving mechanism of putting into gear be motor and driving mechanism thereof.
S14 ', adopt the position signal of described engage a gear position transducer to control described gear shift to refer to move to the gear shift that target gear is corresponding and refer to the position in engage a gear direction, to complete engage a gear process:
If engage a gear position transducer does not break down, adopt the position signal of engage a gear position transducer to control gear shift and refer to move to the gear shift that target gear is corresponding and refer to the position in engage a gear direction, to complete engage a gear process.
In addition, in order to ensure action, put in place, prevent the signal error feedback that sensor fluctuation causes, at the position signal that adopts engage a gear position transducer, control described gear shift and refer to move to the gear shift that target gear is corresponding and refer in the process of the position in engage a gear direction, meet the second the shortest driving time condition.That is to say, drive gear shift to refer to move to the gear shift that target gear is corresponding and refer to that the time of this process of position in engage a gear direction is not less than the second the shortest driving time.
Described the second shortest time is that gear shift refers to move to the gear shift that target gear is corresponding and refers to the needed shortest time of this process of position in engage a gear direction.
It is more than the controlling method of the AMT gear-selecting and shifting executing mechanism of the embodiment of the present invention one.The controlling method that embodiment one provides is after gear selecting position transducer breaks down, can refer to move to gear shift corresponding to target gear adapting with current vehicle speed by the first driving time pattern control gear shift and refer to the position in gear selecting direction, to complete gear selecting process, thereby can be after gear selecting position transducer breaks down, adopt remedial measures, timely selected gear, thereby avoided in prior art due to the gear selecting position transducer power interruption problem that long-time extension do not perform and cause that breaks down.Equally, the controlling method that embodiment one provides is after engage a gear position transducer breaks down, can refer to move to the gear shift that target gear is corresponding by the second driving time pattern control gear shift and refer to the position in engage a gear direction, can be after engage a gear position transducer breaks down, adopt remedial measures, hang up in time gear, thereby complete engage a gear process.Therefore after also can avoiding engage a gear position transducer to break down, the controlling method that, embodiment one provides do not hang the problem that gear causes vehicle power to interrupt for a long time.
It should be noted that, above-mentionedly judge the step S12 whether gear selecting position transducer break down and judge that the step S12 ' whether engage a gear position transducer breaks down can carry out simultaneously, also can sequentially carry out, can certainly first perform step S12 ' and perform step again S12.
The controlling method of the AMT gear-selecting and shifting executing mechanism that above-described embodiment one provides, can after selecting engage a gear position transducer to break down, adopt time control mode to hang up gear in theory, and whether engage a gear is successful, can recently be checked by the rotating speed of AMT gearbox input shaft and output shaft, but due to vehicle in the process of moving, when upward slope or descending, can have influence on the output shaft rotating speed of gearbox, so may there is the possibility of erroneous judgement.For whether verification vehicle is at shelves exactly, the present invention also provides embodiment two.
Embodiment two
The controlling method that the controlling method of the AMT gear-selecting and shifting executing mechanism that embodiment two provides and embodiment one provide, has many similarities, and for the sake of brevity, embodiment two only highlights its difference, and its similarity refers to embodiment one description.
Referring to Fig. 3, the controlling method that the present embodiment two is provided is described in detail.
Step S31 is identical to step S15 with the step S11 in embodiment one to step S35, and step S32 ' is identical to step S14 ' with the step S12 ' in embodiment one to step S34 ', for the sake of brevity, refers to embodiment one description.
The controlling method that the present embodiment provides is after engage a gear completes, and at step S35 and/or step S33 ' afterwards, also comprises:
Step S36, judge that AMT gearbox input shaft angular acceleration is whether in preset range:
The mode that the present embodiment adopts power source to export little moment of torsion judges that AMT gearbox input shaft angular acceleration is whether in preset range, thereby judges whether engage a gear success.Specifically, when AMT gearbox input shaft angular acceleration is in preset range, engage a gear success, when AMT gearbox input shaft angular acceleration is not in preset range, engage a gear failure.
Wherein, described preset range is after engage a gear success, the angular acceleration values that the torque meter of being exported by power source is calculated.
For instance, when the little moment of torsion of a 10Nm of power source output, if the success of current engage a gear, moment of torsion can be delivered to wheel by gearbox, the about 2rad/s of its angular acceleration 2, but if the failure of current engage a gear, because moment of torsion is not loaded, so angular acceleration may be very large, likely reaches 110rad/s 2.Therefore, the present invention can judge that by the variation of so obvious angular acceleration whether engage a gear is successful.
The controlling method providing by embodiment two, after adopting time control mode to control gearing in, also the method by little moment of torsion verification is to judge whether real gearing in.Whether successfully this controlling method has reduced the engage a gear possibility of erroneous judgement.
In addition, after engage a gear success, can't determine whether to hang up correct gear, so for whether verification hangs up correct gear, the controlling method that the present embodiment provides, after definite engage a gear success, also comprises:
Step S37, judge the velocity ratio of AMT gearbox actual-gear and the velocity ratio of target gear whether consistent:
It should be noted that, the corresponding gear range of each gear, so can determine the residing gear of AMT gearbox by velocity ratio.Therefore, can recently judge with the transmission of target gear whether actual-gear conforms to target gear, and whether AMT gearbox hangs up correct gear by comparing the velocity ratio of AMT gearbox actual-gear.
Particularly, when the velocity ratio of AMT gearbox actual-gear and the velocity ratio of target gear are when consistent, AMT gearbox hangs up correct gear, and when the velocity ratio of AMT gearbox actual-gear and the velocity ratio of target gear are when inconsistent, AMT gearbox does not hang up correct gear.
In addition, as another embodiment of the present invention, on embodiment one or embodiment's two basis, after definite gear selecting position transducer breaks down, can also outwards quote gear selecting position transducer fault message, after definite engage a gear position transducer breaks down, can also outwards quote engage a gear position transducer fault message.Also can be after elected file location sensor break down or after engage a gear position transducer breaks down, outwards quote position transducer fault message.
The controlling method of the AMT gear-selecting and shifting executing mechanism providing based on above-described embodiment one and embodiment two, the embodiment of the present invention also provides a kind of control gear of AMT gear-selecting and shifting executing mechanism.Specifically referring to embodiment three.
Embodiment three
In conjunction with Fig. 4, the control gear of the AMT gear-selecting and shifting executing mechanism in embodiment three is described.The AMT gear-selecting and shifting executing mechanism that the present invention adopts is the conventional AMT gear-selecting and shifting executing mechanism in related domain, it comprises that gear selection mechanism, gearshift mechanism and gear shift refer to, described AMT gear-selecting and shifting executing mechanism also comprises for detection of described gear shift and refers to the gear selecting position transducer of the position in gear selecting direction and for detection of described gear shift, refer to the engage a gear position transducer of the position in engage a gear direction.It should be noted that, this control gear is applied to select in gearshift procedure.
As shown in Figure 4, this control gear comprises with lower unit:
Determining unit 41, for determining gear shift failure;
The first judging unit 42, for judging whether described gear selecting position transducer breaks down;
The first control unit 43, for when described gear selecting position transducer breaks down, adopts the first driving time pattern to control described gearshift and refers to move to the gear shift that target gear is corresponding and refer to the position in gear selecting direction, to complete gear selecting process;
The second judging unit 44, for judging whether described engage a gear position transducer breaks down;
The second control unit 45, for when described engage a gear position transducer breaks down, adopts the second driving time pattern to control described gear shift and refers to move to the gear shift that target gear is corresponding and refer to the position in engage a gear direction, to complete engage a gear process;
Wherein, described target gear is the gear adapting with current vehicle speed;
Described the first driving time pattern is that gear shift refers to that the time of the driving in gear selecting direction surpasses after very first time threshold value, and AMT controller is controlled described gear shift according to current vehicle speed and referred to move to the gear shift that target gear is corresponding and refer to the position in gear selecting direction;
Described the second driving time pattern is that gear shift refers to that the time of the driving in engage a gear direction surpasses after the second time threshold, and AMT controller is controlled described gear shift according to current vehicle speed and referred to move to the gear shift that target gear is corresponding and refer to the position in engage a gear direction.
The control gear providing by embodiment three, can be after gear selecting position transducer and/or engage a gear position transducer break down, employing temporal mode (comprising the first driving time pattern and the second driving time pattern) control gear shift refers to and/or gear shift refers to move to precalculated position, thereby completes engage a gear operation.Therefore, avoided in prior art, after position transducer breaks down, long-time extension does not perform and causes the problem of power interruption, has improved the driving safety of vehicle.
Wherein, the first judging unit 42 described above, specifically comprises following subelement:
The first driven element unit 421, for adopting gear selecting driving mechanism to drive gear shift to refer to move predetermined amount of time according to predetermined direction, so that described gear shift refers to move to precalculated position;
The first judgment sub-unit 422, whether consistent with described precalculated position for judging the position signal that gear shift that described gear selecting position transducer detects refers to, if so, gear selecting position transducer does not break down, and if not, gear selecting position transducer breaks down.
The second judging unit 44 described above, specifically comprises following subelement:
The second driven element unit 441, plucks a grade driving mechanism for employing and drives described gear shift to refer to move, so that described gear shift refers in position corresponding to neutral gear;
The second judgment sub-unit 442, whether consistent for judging the position that the position signal gear shift corresponding with described neutral gear that described gear shift that described engage a gear position transducer detects refers to refer to, if so, engage a gear position transducer does not break down, if not, engage a gear position transducer breaks down.
As another embodiment of the present invention, for can verification AMT gearbox gearing in whether, control gear described above, can also comprise:
The 3rd judging unit 46, for judging that AMT gearbox input shaft angular acceleration whether in preset range, if so, determines engage a gear success.
For after definite engage a gear success, can also verification whether hang up on correct gear, i.e. whether verification hangs up on target gear.As another embodiment of the present invention, control gear described above, can further include:
The 4th judging unit 47, whether consistent for judging the velocity ratio of AMT gearbox actual-gear, if so, determine and hang up target gear.
As another embodiment of the present invention, for after realizing elected file location sensor and/or engage a gear position transducer and breaking down, outwards send fault alarm information, control gear described above can further include:
Alarm unit 48, for when described shifting position transducer breaks down and/or when engage a gear position transducer breaks down, outwards quotes fault message.
The above, be only preferred embodiment of the present invention, not the present invention done to any pro forma restriction.
In addition, the similar terms such as " first " of the present invention, " second ", " the 3rd ", are only in order to distinguish a plurality of same parts or technical term, should not be construed as the restriction to parts or technical term.
Although the present invention discloses as above with preferred embodiment, yet not in order to limit the present invention.Any those of ordinary skill in the art, do not departing from technical solution of the present invention scope situation, all can utilize method and the technology contents of above-mentioned announcement to make many possible changes and modification to technical solution of the present invention, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not depart from technical solution of the present invention,, all still belongs in the scope of technical solution of the present invention protection any simple modification made for any of the above embodiments, equivalent variations and modification according to technical spirit of the present invention.

Claims (14)

1. the controlling method of an AMT gear-selecting and shifting executing mechanism, be applied to select in gearshift procedure, described AMT gear-selecting and shifting executing mechanism comprises that gear selection mechanism, gearshift mechanism and gear shift refer to, described AMT gear-selecting and shifting executing mechanism also comprises for detection of described gear shift and refers to the gear selecting position transducer of the position in gear selecting direction and for detection of described gear shift, refer to the engage a gear position transducer of the position in engage a gear direction; It is characterized in that, described controlling method comprises:
Determine gear shift failure;
Judge whether described gear selecting position transducer breaks down, if so, adopt the first driving time pattern to control described gearshift and refer to move to the gear shift that target gear is corresponding and refer to the position in gear selecting direction, to complete gear selecting process; Judge whether described engage a gear position transducer breaks down, if so, adopt the second driving time pattern to control described gear shift and refer to move to the gear shift that target gear is corresponding and refer to the position in engage a gear direction, to complete engage a gear process;
Wherein, described target gear is the gear adapting with current vehicle speed;
Described the first driving time pattern is that gear shift refers to that the time of the driving in gear selecting direction surpasses after very first time threshold value, and AMT controller is controlled described gear shift according to current vehicle speed and referred to move to the gear shift that target gear is corresponding and refer to the position in gear selecting direction;
Described the second driving time pattern is that gear shift refers to that the time of the driving in engage a gear direction surpasses after the second time threshold, and AMT controller is controlled described gear shift according to current vehicle speed and referred to move to the gear shift that target gear is corresponding and refer to the position in engage a gear direction.
2. controlling method according to claim 1, is characterized in that, described in complete engage a gear process after, also comprise:
Judge that AMT gearbox input shaft angular acceleration whether in preset range, if so, determines engage a gear success.
3. controlling method according to claim 2, is characterized in that, after described definite engage a gear success, also comprises:
Judge that whether the velocity ratio of AMT gearbox actual-gear and the velocity ratio of target gear be consistent, if so, determine and hang up target gear.
4. according to the controlling method described in claim 1-3 any one, it is characterized in that, describedly judge whether described gear selecting position transducer breaks down, also comprise: if not, adopt the position signal of described gear selecting position transducer to control described gear shift and refer to move to gear shift corresponding to described target gear and refer to the position in gear selecting direction, to complete gear selecting process; Describedly judge whether described engage a gear position transducer breaks down, also comprise: if not, adopt the position signal of described engage a gear position transducer to control described gear shift and refer to move to gear shift corresponding to described target gear and refer to the position in engage a gear direction, to complete engage a gear process.
5. controlling method according to claim 4, it is characterized in that, the position signal of the described gear selecting position transducer of described employing is controlled described gear shift and is referred to move to required satisfied the first shortest time condition of time of process that gear shift corresponding to described target gear refers to the position in gear selecting direction;
And/or,
The position signal of the described engage a gear position transducer of described employing is controlled described gear shift and is referred to move to required satisfied the second shortest time condition of time of process that gear shift corresponding to described target gear refers to the position in engage a gear direction.
6. according to the controlling method described in claim 1-3 any one, it is characterized in that, described definite gear shift failure, specifically comprises:
When plucking grade driving mechanism driving time over the first maximum duration, determine gear shift failure;
And/or,
When gear selecting driving mechanism driving time surpasses the second maximum duration, determine gear shift failure;
And/or,
When engage a gear driving mechanism driving time surpasses the 3rd maximum duration, determine gear shift failure.
7. according to the controlling method described in claim 1-3 any one, it is characterized in that, describedly judge that whether described gear selecting position transducer breaks down, and specifically comprises:
Gear selecting driving mechanism drives described gear shift to refer to move predetermined amount of time according to predetermined direction, so that described gear shift refers to move to precalculated position;
Judge that the described gear shift that described gear selecting position transducer detects refers to that whether the position signal in gear selecting direction is consistent with described precalculated position; If so, gear selecting position transducer does not break down, and if not, gear selecting position transducer breaks down;
And/or,
Describedly judge that whether described engage a gear position transducer breaks down, and specifically comprises:
Pluck a grade driving mechanism and drive described gear shift to refer to move, so that described gear shift refers in position corresponding to neutral gear;
Judge that whether the position that the position signal gear shift corresponding with described neutral gear that described gear shift that described engage a gear position transducer detects refers to refer to is consistent, if so, engage a gear position transducer does not break down, and if not, engage a gear position transducer breaks down.
8. according to the controlling method described in claim 1-3 any one, it is characterized in that, when described gear selecting position transducer breaks down and/or when described engage a gear position transducer breaks down, outwards quote fault message.
9. the control gear of an AMT gear-selecting and shifting executing mechanism, be applied to select in gearshift procedure, described AMT gear-selecting and shifting executing mechanism comprises that gear selection mechanism, gearshift mechanism and gear shift refer to, described AMT gear-selecting and shifting executing mechanism also comprises for detection of described gear shift and refers to the gear selecting position transducer of the position in gear selecting direction and for detection of described gear shift, refer to the engage a gear position transducer of the position in engage a gear direction; It is characterized in that, described control gear comprises:
Determining unit, for determining gear shift failure;
The first judging unit, for judging whether described gear selecting position transducer breaks down;
The first control unit, for when described gear selecting position transducer breaks down, adopts the first driving time pattern to control described gearshift and refers to move to the gear shift that target gear is corresponding and refer to the position in gear selecting direction, to complete gear selecting process;
The second judging unit, for judging whether described engage a gear position transducer breaks down;
The second control unit, for when described engage a gear position transducer breaks down, adopts the second driving time pattern to control described gear shift and refers to move to the gear shift that target gear is corresponding and refer to the position in engage a gear direction, to complete engage a gear process;
Wherein, described target gear is the gear adapting with current vehicle speed;
Described the first driving time pattern is that gear shift refers to that the time of the driving in gear selecting direction surpasses after very first time threshold value, and AMT controller is controlled described gear shift according to current vehicle speed and referred to move to the gear shift that target gear is corresponding and refer to the position in gear selecting direction;
Described the second driving time pattern is that gear shift refers to that the time of the driving in engage a gear direction surpasses after the second time threshold, and AMT controller is controlled described gear shift according to current vehicle speed and referred to move to the gear shift that target gear is corresponding and refer to the position in engage a gear direction.
10. control gear according to claim 9, is characterized in that, also comprises:
The 3rd judging unit, for judging that AMT gearbox input shaft angular acceleration whether in preset range, if so, determines engage a gear success.
11. control gear according to claim 10, is characterized in that, also comprise:
The 4th judging unit, whether consistent for judging the velocity ratio of AMT gearbox actual-gear and the velocity ratio of target gear, if so, determine and hang up target gear.
12. according to the control gear described in claim 9-11 any one, it is characterized in that, also comprises:
The 3rd control unit, while not breaking down for elected file location sensor, adopts the position signal of described gear selecting position transducer to control described gear shift and refers to move to gear shift corresponding to described target gear and refer to the position in gear selecting direction, to complete gear selecting process;
The 4th control unit, for when engage a gear position transducer does not break down, adopts the position signal of described engage a gear position transducer to control described gear shift and refers to move to gear shift corresponding to described target gear and refer to the position in engage a gear direction, to complete engage a gear process.
13. according to the control gear described in claim 9-11 any one, it is characterized in that, described the first judging unit, comprising:
The first driven element unit, for adopting gear selecting driving mechanism to drive gear shift to refer to move predetermined amount of time according to predetermined direction, so that described gear shift refers to move to precalculated position;
The first judgment sub-unit, whether consistent with described precalculated position for judging the position signal that gear shift that described gear selecting position transducer detects refers to, if so, gear selecting position transducer does not break down, and if not, gear selecting position transducer breaks down;
And/or,
Described the second judging unit, comprising:
The second driven element unit, plucks a grade driving mechanism for employing and drives described gear shift to refer to move, so that described gear shift refers in position corresponding to neutral gear;
The second judgment sub-unit, whether consistent for judging the position that the position signal gear shift corresponding with described neutral gear that described gear shift that described engage a gear position transducer detects refers to refer to, if so, engage a gear position transducer does not break down, if not, engage a gear position transducer breaks down.
14. according to the control gear described in claim 9-11 any one, it is characterized in that, also comprises:
Alarm unit, for when described gear selecting position transducer breaks down and/or when described engage a gear position transducer breaks down, outwards quotes fault message.
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