CN104455375B - Self-learning gear control method and device for transmission control unit - Google Patents

Self-learning gear control method and device for transmission control unit Download PDF

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Publication number
CN104455375B
CN104455375B CN201410707790.7A CN201410707790A CN104455375B CN 104455375 B CN104455375 B CN 104455375B CN 201410707790 A CN201410707790 A CN 201410707790A CN 104455375 B CN104455375 B CN 104455375B
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China
Prior art keywords
gear
shift
dutycycle
reference value
control unit
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CN104455375A (en
Inventor
***
高龙
郭伟
辛彩云
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Shengrui Transmission Co Ltd
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Shengrui Transmission Co Ltd
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control 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
    • F16H61/02Control 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
    • F16H61/0202Control 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
    • F16H61/0204Control 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H59/00Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02Selector apparatus
    • F16H59/08Range selector apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H59/00Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02Selector apparatus
    • F16H59/08Range selector apparatus
    • F16H2059/082Range selector apparatus with different modes
    • F16H2059/086Adaptive mode, e.g. learning from the driver

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

Abstract

The invention discloses a self-learning gear control method and device for a transmission control unit. The method comprises the steps of controlling the transmission control unit to calculate the duty ratio reference values of the P gear, the R gear, the N gear and the D gear; controlling the transmission control unit to store the duty ratio reference values of the P gear, the R gear, the N gear and the D gear; triggering the transmission control unit to read the duty ratio reference values of the P gear, the R gear, the N gear and the D gear; triggering the transmission control unit to calculate the duty ratio ranges of the P gear, the R gear, the N gear and the D gear according to the duty ratio reference values of the P gear, the R gear, the N gear and the D gear. By the adoption of the technical scheme, the situation that an automatic transmission needs to be returned to be maintained after sensor replacement in the prior art can be avoided, and therefore convenience can be brought to car owners.

Description

Control unit for automatic shift gear Learning Control Method and device
Technical field
The present invention relates to control technology field, more particularly, to control unit for automatic shift gear Learning Control Method and Device.
Background technology
Automatic transmission is that occur with respect to manual transmission a kind of can carry out gear shift automatically according to engine speed Equipment.The appearance of automatic transmission, alleviates tension when driver drives a car.Due to need not change in driving procedure Shelves, driver can absorbedly observe the situation of vehicle periphery, and due to using accurate electric control gear, fluid drive Device not only adapts to various driving conditions, and is suitable for different driving styles.This means that the gear shift moment depends on driving Sail mode, engine load, speed and engine speed, thus, take full advantage of the effective power of electromotor.
(transmission control unit, automatic gear-box controls for the control device of automatic transmission, referred to as tcu Unit).The gear-change operation of automatic transmission to be controlled by tcu, and therefore, tcu is particularly important with regard to the control accuracy of gear shift. In current technology, tcu passes through to determine the dutycycle in which gear for the duty cycle signals of Hall-type gear position sensor reading In the range of, to determine the position of shift bar.The higher limit of each gear duty cycle range and lower limit are based on eol (end Of line testing tool, offline tester) p-wire measured value, tcu according to this measured value calculate concrete certain The duty cycle range of individual gear.
During the sensor failure of automatic transmission, need the sensor more renewing.In current technology, change new sensor Automatic transmission afterwards needs the eol p-wire returning production firm to retest the dutycycle of each gear, then determines again The duty cycle range of each gear.This process of depot repair is bothersome laborious, can make troubles to a lot of car owners.
Content of the invention
In view of this, the invention provides a kind of control unit for automatic shift gear Learning Control Method and device, Need the problem of depot repair in order to avoid changing the automatic transmission after new sensor in prior art, therefore, it is possible to for car owner Bring convenience.
For achieving the above object, the following technical scheme of present invention offer:
A kind of control unit for automatic shift gear Learning Control Method, comprising:
Control described control unit for automatic shift to obtain shift bar at least first preset times respectively and enter parking position switch p position The duty cycle signals put, the dutycycle reference value averaged as parking position switch p, obtain shift bar at least second preset times and enter Enter the duty cycle signals of reverse gear r position, the dutycycle reference value averaged as reverse gear r, obtain shift bar at least the Three preset times enter the duty cycle signals of neutral gear n position, the dutycycle reference value averaged as neutral gear n, obtain gear shift Bar at least the 4th preset times enter the duty cycle signals of drive shift d position, the dutycycle benchmark averaged as drive shift d Value;
Control described control unit for automatic shift store respectively described parking position switch p, described reverse gear r, described neutral gear n and The dutycycle reference value of described drive shift d;
Trigger described control unit for automatic shift read respectively described parking position switch p, described reverse gear r, described neutral gear n and The dutycycle reference value of described drive shift d;
Trigger described control unit for automatic shift according to described parking position switch p, described reverse gear r, described neutral gear n and described The dutycycle reference value of drive shift each gear of d, calculates described parking position switch p, described reverse gear r, described neutral gear n and described respectively Drive shift each gear of d duty cycle range.
Preferably, the described control unit for automatic shift of described control obtains shift bar at least first preset times respectively and enters Enter the duty cycle signals of parking position switch p position, the dutycycle reference value averaged as parking position switch p, obtain shift bar at least the Two preset times enter the duty cycle signals of reverse gear r position, the dutycycle reference value averaged as reverse gear r, obtain Shift bar at least the 3rd preset times enter the duty cycle signals of neutral gear n position, the dutycycle benchmark averaged as neutral gear n Value, obtains the duty cycle signals that shift bar at least the 4th preset times enter drive shift d position, averages as drive shift d Dutycycle reference value, also include before:
Control electricity on car load but misfire.
Preferably, on described control car load electricity but after misfiring, also include:
Obtain the water temperature of electromotor and the oil temperature of automatic transmission, when water temperature and the described automatic transmission of described electromotor Below 60 degrees Celsius of oil temperature when, triggering execution subsequent operation.
Preferably, described first preset times are no less than 3 times.
Preferably, described second preset times are no less than 3 times.
Preferably, described 3rd preset times are no less than 3 times.
Preferably, described shift bar by artificial in described parking position switch p, described reverse gear r, described neutral gear n and described advance Switch between shelves d, the switching interval time between any two gear is no less than 5 seconds.
Preferably, described according to described parking position switch p, described reverse gear r, described neutral gear n and described each gear of drive shift d Dutycycle reference value, calculate described parking position switch p, described reverse gear r, described neutral gear n and described each gear of drive shift d respectively Duty cycle range, comprising:
It is equally divided into first default part between the dutycycle reference value and the dutycycle reference value of reverse gear r of parking position switch p Number, according to the dutycycle higher limit of location position parking position switch p of hydraulic manual valve parking position switch p oil circuit closure, according to hydraulic manual The dutycycle lower limit of location position reverse gear r that valve reverse gear r oil circuit is opened;
It is equally divided into the second default number between the dutycycle reference value and the dutycycle reference value of neutral gear n of parking position switch r, According to the dutycycle higher limit of location position reverse gear r of hydraulic manual valve reverse gear oil circuit closure, empty according to hydraulic manual valve The dutycycle lower limit of the location position neutral gear n that shelves n oil circuit is opened;
It is equally divided into the 3rd default number between the dutycycle reference value and the dutycycle reference value of drive shift d of neutral gear n, According to the dutycycle higher limit of the location position neutral gear n of hydraulic manual valve neutral gear n oil circuit closure, according to hydraulic manual valve drive shift The dutycycle lower limit of the location position drive shift d that d oil circuit is opened.
Preferably, described triggering described control unit for automatic shift read respectively described parking position switch p, described reverse gear r, After the dutycycle reference value of described neutral gear n and described drive shift d, also include:
Obtain the dutycycle lower limit default value of parking position switch p and the dutycycle upper limit default value of drive shift d.
A kind of control unit for automatic shift gear Self-learning control device, comprising:
First control module, presets for controlling described control unit for automatic shift to obtain shift bar at least first respectively Number of times enters the duty cycle signals of parking position switch p position, the dutycycle reference value averaged as parking position switch p, obtains shift bar At least second preset times enter the duty cycle signals of reverse gear r position, the dutycycle benchmark averaged as reverse gear r Value, obtains the duty cycle signals that shift bar at least the 3rd preset times enter neutral gear n position, accounting for as neutral gear n of averaging Empty ratio reference value, obtains the duty cycle signals that shift bar at least the 4th preset times enter drive shift d position, conduct of averaging The dutycycle reference value of drive shift d;
Second control module, for control described control unit for automatic shift store respectively described parking position switch p, described fall The dutycycle reference value of car stop r, described neutral gear n and described drive shift d;
First trigger module, for trigger described control unit for automatic shift read respectively described parking position switch p, described fall The dutycycle reference value of car stop r, described neutral gear n and described drive shift d;
Second trigger module, for triggering described control unit for automatic shift according to described parking position switch p, described reverse gear R, described neutral gear n and the dutycycle reference value of described drive shift each gear of d, calculate described parking position switch p, described reverse gear respectively R, described neutral gear n and the duty cycle range of described drive shift each gear of d.
Understand via above-mentioned technical scheme, compared with prior art, the invention provides a kind of automatic transmission controls Unit gear Learning Control Method and device.The technical scheme being provided using the present invention, controls described automatic transmission first Control unit obtains the duty cycle signals that shift bar at least first preset times enter parking position switch p position, work of averaging respectively For the dutycycle reference value of parking position switch p, obtain the dutycycle letter that shift bar at least second preset times enter reverse gear r position Number, the dutycycle reference value averaged as reverse gear r, obtain shift bar at least the 3rd preset times and enter neutral gear n position Duty cycle signals, the dutycycle reference value averaged as neutral gear n, obtain shift bar at least the 4th preset times enter before Enter grade duty cycle signals for d position, the dutycycle reference value averaged as drive shift d;Then, control described fluid drive Device control unit stores described parking position switch p, the dutycycle benchmark of described reverse gear r, described neutral gear n and described drive shift d respectively Value;Then, trigger described control unit for automatic shift read respectively described parking position switch p, described reverse gear r, described neutral gear n and The dutycycle reference value of described drive shift d;Finally, trigger described control unit for automatic shift according to described parking position switch p, described The dutycycle reference value of reverse gear r, described neutral gear n and described drive shift each gear of d, calculates described parking position switch p, described respectively The duty cycle range of reverse gear r, described neutral gear n and described drive shift each gear of d.The technical scheme that the present invention provides, passes through Control control unit for automatic shift to determine the dutycycle reference value of each gear of prnd, trigger control unit for automatic shift The duty cycle range of each gear of prnd is calculated according to the dutycycle reference value of each gear of prnd.As can be seen that the present invention The technical scheme providing is it is no longer necessary to the eol p-wire that automatic transmission is returned to factory just can determine each shelves of prnd The dutycycle reference value of position.Therefore, the technical scheme that the application present invention provides produces it is not necessary to need to return automatic transmission The eol p-wire of manufacturer just can determine the duty cycle range of each gear, and maintenance flow reduces, and is that car owner brings conveniently.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis The accompanying drawing providing obtains other accompanying drawings.
Fig. 1 is a kind of flow process of control unit for automatic shift gear Learning Control Method provided in an embodiment of the present invention Figure;
Fig. 2 is another control unit for automatic shift gear Learning Control Method provided in an embodiment of the present invention Flow chart;
Fig. 3 is a kind of structure of control unit for automatic shift gear Self-learning control device provided in an embodiment of the present invention Figure.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work Embodiment, broadly falls into the scope of protection of the invention.
Understandable for enabling the above objects, features and advantages of the present invention to become apparent from, below in conjunction with the accompanying drawings and specifically real The present invention is further detailed explanation to apply mode.
Embodiment one
Refer to Fig. 1, Fig. 1 is a kind of control unit for automatic shift gear Self-learning control provided in an embodiment of the present invention The flow chart of method.As shown in figure 1, the method includes:
Step s101, controls described control unit for automatic shift to calculate the dutycycle reference value of each gear of prnd;
Specifically, each gear of automatic transmission prnd is: p (parking, parking position switch), r (reverse, reverse gear), n (neutral, neutral gear), d (driving, drive shift).
Specifically, described step s101 includes:
Control described control unit for automatic shift to obtain shift bar at least first preset times respectively and enter parking position switch p position The duty cycle signals put, the dutycycle reference value averaged as parking position switch p, obtain shift bar at least second preset times and enter Enter the duty cycle signals of reverse gear r position, the dutycycle reference value averaged as reverse gear r, obtain shift bar at least the Three preset times enter the duty cycle signals of neutral gear n position, the dutycycle reference value averaged as neutral gear n, obtain gear shift Bar at least the 4th preset times enter the duty cycle signals of drive shift d position, the dutycycle benchmark averaged as drive shift d Value.
Specifically, described first preset times are no less than 3 times;Described second preset times are no less than 3 times;Described 3rd is pre- If number of times is no less than 3 times.
It should be noted that described shift bar by artificial in described parking position switch p, described reverse gear r, described neutral gear n and institute State switching between drive shift d, the switching interval time between any two gear is no less than 5 seconds.
For example, operator (i.e. artificial) stirs gear level, from the beginning of p position, through at least 5 seconds, is allocated to r position, then warp Spend at least 5 seconds, be allocated to n position, then through at least 5 seconds, be allocated to d position, then through at least 5 seconds, be allocated to n position, then through extremely Few 5 seconds, it is allocated to r position, then was allocated to p position through at least 5 seconds, complete a p- > r- > n- > d- > n- > r- > p circulation.Work as gearshift Bar enters the position of certain gear, needs through after a while (i.e. above-mentioned at least 5 seconds) to confirm the dutycycle of this position, do so Purpose be in order to prevent gear level fluctuation mechanically cause mistake sampling.When gear level enters each gear positions Number of times reaches three times, and three dutycycles of certain gear are averaged as the reference value of this gear.As p, r, n and d tetra- Gear all each takes the meansigma methodss of respective three dutycycles, then obtain the dutycycle reference value of this four each gears of gear.
By the above as can be seen that the technical scheme of present invention offer is it is not necessary to return to producer by automatic transmission Eol p-wire tested, just can obtain the dutycycle reference value of tetra- each gears of gear of prnd.
Step s102, controls described control unit for automatic shift to store described parking position switch p, described reverse gear r, institute respectively State neutral gear n and the dutycycle reference value of described drive shift d;
Step s103, triggers described control unit for automatic shift and reads described parking position switch p, described reverse gear r, institute respectively State neutral gear n and the dutycycle reference value of described drive shift d;
Step s104, triggers described control unit for automatic shift according to described parking position switch p, described reverse gear r, described sky Shelves n and the dutycycle reference value of described drive shift each gear of d, calculate described parking position switch p, described reverse gear r, described sky respectively Shelves n and described drive shift each gear of d duty cycle range;
Specifically, described control unit for automatic shift according to described parking position switch p, described reverse gear r, described neutral gear n and The dutycycle reference value of described drive shift each gear of d, calculate respectively described parking position switch p, described reverse gear r, described neutral gear n and The duty cycle range of described drive shift each gear of d, comprising:
It is equally divided into first default part between the dutycycle reference value and the dutycycle reference value of reverse gear r of parking position switch p Number, according to the dutycycle higher limit of location position parking position switch p of hydraulic manual valve parking position switch p oil circuit closure, according to hydraulic manual The dutycycle lower limit of location position reverse gear r that valve reverse gear r oil circuit is opened;Optionally, the described first default number is 6 Part.
It is equally divided into the second default number between the dutycycle reference value and the dutycycle reference value of neutral gear n of parking position switch r, According to the dutycycle higher limit of location position reverse gear r of hydraulic manual valve reverse gear oil circuit closure, empty according to hydraulic manual valve The dutycycle lower limit of the location position neutral gear n that shelves n oil circuit is opened;Optionally, the described second default number is 5 parts.
It is equally divided into the 3rd default number between the dutycycle reference value and the dutycycle reference value of drive shift d of neutral gear n, According to the dutycycle higher limit of the location position neutral gear n of hydraulic manual valve neutral gear n oil circuit closure, according to hydraulic manual valve drive shift The dutycycle lower limit of the location position drive shift d that d oil circuit is opened.Optionally, the described 3rd default number is 6 parts.
Understand via above-mentioned technical scheme, compared with prior art, the invention provides a kind of automatic transmission controls Unit gear Learning Control Method and device.The technical scheme being provided using the present invention, controls described automatic transmission first Control unit obtains the duty cycle signals that shift bar at least first preset times enter parking position switch p position, work of averaging respectively For the dutycycle reference value of parking position switch p, obtain the dutycycle letter that shift bar at least second preset times enter reverse gear r position Number, the dutycycle reference value averaged as reverse gear r, obtain shift bar at least the 3rd preset times and enter neutral gear n position Duty cycle signals, the dutycycle reference value averaged as neutral gear n, obtain shift bar at least the 4th preset times enter before Enter grade duty cycle signals for d position, the dutycycle reference value averaged as drive shift d;Then, control described fluid drive Device control unit stores described parking position switch p, the dutycycle benchmark of described reverse gear r, described neutral gear n and described drive shift d respectively Value;Then, trigger described control unit for automatic shift read respectively described parking position switch p, described reverse gear r, described neutral gear n and The dutycycle reference value of described drive shift d;Finally, trigger described control unit for automatic shift according to described parking position switch p, described The dutycycle reference value of reverse gear r, described neutral gear n and described drive shift each gear of d, calculates described parking position switch p, described respectively Reverse gear r, described neutral gear n and described drive shift each gear of d duty cycle range.The technical scheme that the present invention provides, leads to Cross control control unit for automatic shift to determine the dutycycle reference value of each gear of prnd, triggering automatic transmission controls single Unit calculates the duty cycle range of each gear of prnd according to the dutycycle reference value of each gear of prnd.As can be seen that this The technical scheme of bright offer it is no longer necessary to eol p-wire that automatic transmission is returned to factory just can determine prnd each The dutycycle reference value of gear.Therefore, the technical scheme that the application present invention provides is it is not necessary to need to return life automatic transmission The eol p-wire producing manufacturer just can determine the duty cycle range of each gear, and maintenance flow reduces, and is the car owner side of bringing Just.
In order to illustrate the technical scheme that the present invention provides in further detail, the present invention provides another one specific embodiment.
Embodiment two
Refer to Fig. 2, Fig. 2 is another control unit for automatic shift gear self study provided in an embodiment of the present invention The flow chart of control method.As shown in Fig. 2 the method includes:
Step s201, controls electricity on car load but misfires;
Step s202, obtains the water temperature of electromotor and the oil temperature of automatic transmission;
Step s203, when the water temperature of described electromotor and the oil temperature of described automatic transmission are below 60 degrees Celsius, control Make the dutycycle reference value that described control unit for automatic shift calculates each gear of prnd;
Step s204, controls described control unit for automatic shift to store described parking position switch p, described reverse gear r, institute respectively State neutral gear n and the dutycycle reference value of described drive shift d;
Step s205, triggers described control unit for automatic shift and reads described parking position switch p, described reverse gear r, institute respectively State neutral gear n and the dutycycle benchmark of described drive shift d;
Step s206, obtains the dutycycle lower limit default value of parking position switch p and the dutycycle upper limit default value of drive shift d;
Specifically, the dutycycle lower limit of parking position switch p and the dutycycle higher limit of drive shift d all adopt default value.Optional , the default value of the dutycycle lower limit of parking position switch p is 0, and the default value of the dutycycle higher limit of drive shift d is 100.
Step s207, triggers described control unit for automatic shift according to described parking position switch p, described reverse gear r, described sky Shelves n and the dutycycle reference value of described drive shift each gear of d, and the dutycycle lower limit default value of described parking position switch p and institute State the dutycycle upper limit default value of drive shift d, calculate respectively described parking position switch p, described reverse gear r, described neutral gear n and described before Enter a grade duty cycle range for each gear of d.
In order to more comprehensively illustrate the technical scheme that the present invention provides, the present invention also provides a kind of automatic transmission to control Unit gear Self-learning control device.
Refer to Fig. 3, Fig. 3 is a kind of control unit for automatic shift gear Self-learning control provided in an embodiment of the present invention The structure chart of device.As shown in figure 3, this device includes:
First control module 301, for controlling described control unit for automatic shift to obtain shift bar at least first respectively Preset times enter the duty cycle signals of parking position switch p position, the dutycycle reference value averaged as parking position switch p, and acquisition is changed Lever at least second preset times enter the duty cycle signals of reverse gear r position, the dutycycle base averaged as reverse gear r Quasi- value, obtains the duty cycle signals that shift bar at least the 3rd preset times enter neutral gear n position, averages as neutral gear n's Dutycycle reference value, obtains the duty cycle signals that shift bar at least the 4th preset times enter drive shift d position, work of averaging Dutycycle reference value for drive shift d;
Second control module 302, for controlling described control unit for automatic shift to store described parking position switch p, institute respectively State the dutycycle reference value of reverse gear r, described neutral gear n and described drive shift d;
First trigger module 303, reads described parking position switch p, institute respectively for triggering described control unit for automatic shift State the dutycycle reference value of reverse gear r, described neutral gear n and described drive shift d;
Second trigger module 304, for trigger described control unit for automatic shift according to described parking position switch p, described fall Car stop r, described neutral gear n and the dutycycle reference value of described drive shift each gear of d, calculate respectively described parking position switch p, described fall Car stop r, described neutral gear n and described drive shift each gear of d duty cycle range.
Further, control unit for automatic shift gear Self-learning control device provided in an embodiment of the present invention, also wraps Include:
3rd control module, misfires for controlling electricity on car load.
Further, control unit for automatic shift gear Self-learning control device provided in an embodiment of the present invention, also wraps Include:
First acquisition module, for obtaining the water temperature of electromotor and the oil temperature of automatic transmission;
3rd trigger module, Celsius for the oil temperature when the water temperature of described electromotor and described automatic transmission below 60 When spending, described first control module 301 of triggering executes the control function of this module.
Further, control unit for automatic shift gear Self-learning control device provided in an embodiment of the present invention, also wraps Include:
Second acquisition module, the dutycycle upper limit of dutycycle lower limit default value and drive shift d for obtaining parking position switch p is write from memory Recognize value.
Last in addition it is also necessary to explanation, herein, such as first and second or the like relational terms be used merely to by One entity or operation are made a distinction with another entity or operation, and not necessarily require or imply these entities or operation Between there is any this actual relation or order.And, term " inclusion ", "comprising" or its any other variant meaning Covering comprising of nonexcludability, so that including a series of process of key elements, method, article or equipment not only include that A little key elements, but also include other key elements being not expressly set out, or also include for this process, method, article or The intrinsic key element of equipment.In the absence of more restrictions, the key element being limited by sentence "including a ...", does not arrange Remove and also there is other identical element in the process including described key element, method, article or equipment.
In this specification, each embodiment is described by the way of going forward one by one, and what each embodiment stressed is and other The difference of embodiment, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment For, because it corresponds to the method disclosed in Example, so description is fairly simple, say referring to method part in place of correlation Bright.
The step of the method in conjunction with the embodiments described herein description or algorithm can directly be held with hardware, processor The software module of row, or the combination of the two is implementing.Software module can be placed in random access memory (ram), internal memory, read-only deposit Reservoir (rom), electrically programmable rom, electrically erasable rom, depositor, hard disk, moveable magnetic disc, cd-rom or technology In known any other form of storage medium in field.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention. Multiple modifications to these embodiments will be apparent from for those skilled in the art, as defined herein General Principle can be realized without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention It is not intended to be limited to the embodiments shown herein, and be to fit to and principles disclosed herein and features of novelty phase one The scope the widest causing.

Claims (10)

1. a kind of control unit for automatic shift gear Learning Control Method is it is characterised in that include:
Control described control unit for automatic shift to obtain shift bar at least first preset times respectively and enter parking position switch p position Duty cycle signals, the dutycycle reference value averaged as parking position switch p, obtain shift bar at least second preset times and enter The duty cycle signals of car stop r position, the dutycycle reference value averaged as reverse gear r, obtain shift bar at least the 3rd pre- If number of times enters the duty cycle signals of neutral gear n position, the dutycycle reference value averaged as neutral gear n, obtain shift bar extremely Few 4th preset times enter the duty cycle signals of drive shift d position, the dutycycle reference value averaged as drive shift d;
Described control unit for automatic shift is controlled to store described parking position switch p, described reverse gear r, described neutral gear n and described respectively The dutycycle reference value of drive shift d;
Trigger described control unit for automatic shift and read described parking position switch p, described reverse gear r, described neutral gear n and described respectively The dutycycle reference value of drive shift d;
Trigger described control unit for automatic shift according to described parking position switch p, described reverse gear r, described neutral gear n and described advance The dutycycle reference value of shelves each gear of d, calculates described parking position switch p, described reverse gear r, described neutral gear n and described advance respectively The duty cycle range of shelves each gear of d.
2. control unit for automatic shift gear Learning Control Method according to claim 1 is it is characterised in that described Described control unit for automatic shift is controlled to obtain the duty that shift bar at least first preset times enter parking position switch p position respectively Ratio signal, the dutycycle reference value averaged as parking position switch p, obtain shift bar at least second preset times and enter reverse gear The duty cycle signals of r position, the dutycycle reference value averaged as reverse gear r, obtain shift bar at least the 3rd default secondary Number enters the duty cycle signals of neutral gear n positions, the dutycycle reference value averaged as neutral gear n, obtains shift bar at least the The duty cycle signals of four preset times entrance drive shift d positions, the dutycycle reference value averaged as drive shift d, before Also include:
Control electricity on car load but misfire.
3. control unit for automatic shift gear Learning Control Method according to claim 2 is it is characterised in that described After controlling electricity on car load but misfiring, also include:
Obtain the water temperature of electromotor and the oil temperature of automatic transmission, when the water temperature of described electromotor and the oil of described automatic transmission When temperature is below 60 degrees Celsius, triggering execution subsequent operation.
4. control unit for automatic shift gear Learning Control Method according to claim 1 is it is characterised in that described First preset times are no less than 3 times.
5. control unit for automatic shift gear Learning Control Method according to claim 1 is it is characterised in that described Second preset times are no less than 3 times.
6. control unit for automatic shift gear Learning Control Method according to claim 1 is it is characterised in that described 3rd preset times are no less than 3 times.
7. control unit for automatic shift gear Learning Control Method according to claim 1 is it is characterised in that described Shift bar is switched between described parking position switch p, described reverse gear r, described neutral gear n and described drive shift d by artificial, any two The switching interval time between gear is no less than 5 seconds.
8. control unit for automatic shift gear Learning Control Method according to claim 1 is it is characterised in that described According to the dutycycle reference value of described parking position switch p, described reverse gear r, described neutral gear n and described drive shift each gear of d, difference Calculate described parking position switch p, described reverse gear r, described neutral gear n and described drive shift each gear of d duty cycle range, bag Include:
It is equally divided into the first default number between the dutycycle reference value and the dutycycle reference value of reverse gear r of parking position switch p, according to According to the dutycycle higher limit of location position parking position switch p of hydraulic manual valve parking position switch p oil circuit closure, according to the reversing of hydraulic manual valve The dutycycle lower limit of location position reverse gear r that shelves r oil circuit is opened;
It is equally divided into the second default number, foundation between the dutycycle reference value and the dutycycle reference value of neutral gear n of parking position switch r The dutycycle higher limit of location position reverse gear r of hydraulic manual valve reverse gear oil circuit closure, according to hydraulic manual valve neutral gear n oil The dutycycle lower limit of the location position neutral gear n that road is opened;
It is equally divided into the 3rd default number, foundation between the dutycycle reference value and the dutycycle reference value of drive shift d of neutral gear n The dutycycle higher limit of the location position neutral gear n of hydraulic manual valve neutral gear n oil circuit closure, according to hydraulic manual valve drive shift d oil The dutycycle lower limit of the location position drive shift d that road is opened.
9. control unit for automatic shift gear Learning Control Method according to claim 8 is it is characterised in that described Trigger described control unit for automatic shift and read described parking position switch p, described reverse gear r, described neutral gear n and described advance respectively After the dutycycle reference value of shelves d, also include:
Obtain the dutycycle lower limit default value of parking position switch p and the dutycycle upper limit default value of drive shift d.
10. a kind of control unit for automatic shift gear Self-learning control device is it is characterised in that include:
First control module, for controlling described control unit for automatic shift to obtain shift bar at least first preset times respectively Enter the duty cycle signals of parking position switch p position, the dutycycle reference value averaged as parking position switch p, obtain shift bar at least Second preset times enter the duty cycle signals of reverse gear r position, the dutycycle reference value averaged as reverse gear r, obtain Take the duty cycle signals that lever at least the 3rd preset times enter neutral gear n position, the dutycycle base averaged as neutral gear n Quasi- value, obtains the duty cycle signals that shift bar at least the 4th preset times enter drive shift d position, averages as drive shift The dutycycle reference value of d;
Second control module, for controlling described control unit for automatic shift to store described parking position switch p, described reverse gear respectively The dutycycle reference value of r, described neutral gear n and described drive shift d;
First trigger module, reads described parking position switch p, described reverse gear respectively for triggering described control unit for automatic shift The dutycycle reference value of r, described neutral gear n and described drive shift d;
Second trigger module, for triggering described control unit for automatic shift according to described parking position switch p, described reverse gear r, institute State neutral gear n and the dutycycle reference value of described drive shift each gear of d, calculate described parking position switch p, described reverse gear r, institute respectively State neutral gear n and the duty cycle range of described drive shift each gear of d.
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