CN103527773A - Method and device for controlling failure of input shaft speed sensor in automotive AMT (automated mechanical transmission) - Google Patents

Method and device for controlling failure of input shaft speed sensor in automotive AMT (automated mechanical transmission) Download PDF

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Publication number
CN103527773A
CN103527773A CN201310522131.1A CN201310522131A CN103527773A CN 103527773 A CN103527773 A CN 103527773A CN 201310522131 A CN201310522131 A CN 201310522131A CN 103527773 A CN103527773 A CN 103527773A
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China
Prior art keywords
input shaft
transmission input
transmission
clutch
speed
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CN201310522131.1A
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CN103527773B (en
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高阳
陈勇
罗大国
郭立书
冯擎峰
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Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely Automobile Research Institute Co Ltd
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Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely Automobile Research Institute Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • 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
    • F16H2061/1224—Adapting to failures or work around with other constraints, e.g. circumvention by avoiding use of failed parts
    • 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

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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 for controlling failure of an input shaft speed sensor in an automotive AMT (automated mechanical transmission) and a control device for the implementation of the method. The method includes: using a product of a gear transmission ratio of transmission input shaft speed and a transmission gear transmission ratio as a transmission input shaft speed when the transmission input shaft speed sensor fails, and calculating slip of a clutch according to the transmission input shaft speed. The control method comprises a transmission input shaft speed sensor failure diagnosis unit and a clutch slip acquisition unit, wherein the units are connected with each other. The method and the device have the advantages that when the transmission input shaft speed sensor fails, the value approximate to the transmission input shaft speed can be acquired; the obtained slip of clutch and the obtained engaging speed of clutch are accurate, and the problem that the failure of the transmission input shaft sensor causes greatly reduced vehicle comfort and safety is solved.

Description

Controlling method and the device thereof of AMT transmission for vehicles input shaft rotating speed sensor failure
Technical field
The invention belongs to vehicle transmission technical field, relate to a kind of controlling method for sensor failure.
Background technique
In the vehicle of automatic mechanical transmission (AMT) is housed, at clutch during in cohesive process, by transmission input shaft speed probe, detect transmission input shaft rotating speed, calculate successively the difference of active part rotating speed and the transmission input shaft rotating speed of clutch, and then solenoidoperated cluthes combination.Therefore, once this sensor failure, the result of calculation of the difference of clutch active part rotating speed and transmission input shaft rotating speed just there will be mistake, thereby make controlled clutch pressure inaccurate, very easily cause vehicle jitter phenomenon, when serious, even there will be the power interruption phenomenons such as engine misses, light have influence on occupant's riding comfort, or vehicle can not continue to travel, heavy can the Security of vehicle be caused and be had a strong impact on.
When there is the situation of above-mentioned transmission input shaft sensor failure, it is separated gradually that the controlling method of prior art has plenty of the clutch of making, and finally makes vehicle parking, caused driver and passenger's inconvenience.The travelling comfort of therefore, that it(?) still can support vehicles in the situation that transmission input shaft speed probe lost efficacy travel, the technology of Security have extremely strong Research Significance and using value.
Summary of the invention
The object of the present invention is to provide a kind of transmission input shaft speed probe of in the situation that AMT vehicle lost efficacy support vehicles travelling comfort and Security controlling method and realize the control gear of this controlling method.
In order to achieve the above object, solution of the present invention is:
A controlling method for AMT transmission for vehicles input shaft rotating speed sensor failure, described controlling method comprises the following steps:
(1) judge whether transmission input shaft speed probe breaks down; If broken down, enter step (2); Otherwise, enter step (3);
(2) according to following formula, calculate transmission input shaft rotating speed substitution value, as transmission input shaft tachometer value, and enter step (3):
Transmission input shaft rotating speed substitution value=transmission output speed * speed changer is at shelves velocity ratio
(3) using the checkout value of transmission input shaft speed probe as transmission input shaft tachometer value.
Described controlling method also comprises: according to described transmission input shaft tachometer value, calculate clutch slip.
Described controlling method also comprises: according to described clutch slip, calculate clutch in conjunction with speed.
Described controlling method also comprises before in described step (1): judge that whether clutch is in bonding state; If so, enter step (1); If not, finish.
A kind of control gear of realizing the controlling method of above-mentioned AMT transmission for vehicles input shaft rotating speed sensor failure, comprise transmission input shaft speed probe failure diagnosis unit, to judge whether transmission input shaft speed probe works, and the clutch slip acquiring unit being connected with described transmission input shaft speed probe failure diagnosis unit, to receive the working state of the transmission input shaft speed probe of described transmission input shaft speed probe failure diagnosis unit judgement, and when transmission input shaft speed probe works, the tachometer value of the transmission input shaft detecting according to transmission input shaft speed probe calculates clutch slip, and when transmission input shaft speed probe breaks down, the transmission input shaft rotating speed substitution value of calculating according to following formula is as transmission input shaft tachometer value, and calculate clutch slip according to described transmission input shaft tachometer value:
Transmission input shaft rotating speed substitution value=transmission output speed * speed changer is at shelves velocity ratio
Described control gear also comprises that the clutch connecting with described clutch slip acquiring unit is combined speed acquiring unit, the described clutch slip obtaining to receive described clutch slip acquiring unit, and calculate clutch in conjunction with speed according to described clutch slip.
Described control gear also comprises the clutch bonding state judging unit being connected with described transmission input shaft speed probe failure diagnosis unit, with the bonding state of judgement clutch, and at clutch, trigger described transmission input shaft sensor fault diagnosis cell operation during in bonding state.
Owing to adopting such scheme, the invention has the beneficial effects as follows: controlling method and the control gear of the AMT vehicle input shaft rotating speed sensor failure that the present invention proposes, can be when transmission input shaft speed probe breaks down, acquisition approaches the approximative value of transmission input shaft rotating speed, thereby the clutch slip and the clutch that obtain are also comparatively accurate in conjunction with speed, solved the problem that vehicle riding comfort that transmission input shaft sensor failure causes and Security reduce greatly.The present invention has guaranteed travelling comfort and the Security of vehicle effectively, has greatly improved the market competitiveness of vehicle.
Accompanying drawing explanation
Fig. 1 is the flow chart of the controlling method of AMT transmission for vehicles input shaft sensor failure in the embodiment of the present invention;
Fig. 2 is the structural representation of the control gear of AMT transmission for vehicles input shaft sensor failure in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing illustrated embodiment, the present invention is further illustrated.
The present invention proposes a kind ofly after AMT transmission for vehicles input shaft rotating speed sensor failure, still can guarantee that vehicle normally moves, the controlling method of support vehicles travelling comfort and Security.
Controlling method of the present invention comprises the following steps:
(1) judge that clutch whether in cohesive process, if so, enters step (2); If not, enter step (6);
(2) detect transmission input shaft speed probe and whether break down, if so, enter step (3); Otherwise enter step (4);
(3) value of calculating according to the following equation speed changer input speed to be to substitute the checkout value of transmission input shaft speed probe, and calculates clutch slip according to this value, and enters step (5):
Transmission input shaft rotating speed=transmission output speed * speed changer is at shelves velocity ratio
Wherein, speed changer is given value at shelves velocity ratio in this controlling method, according to the difference of speed changer place gear and difference;
(4) the clutch input speed gathering according to transmission input shaft speed probe calculates the slippage of clutch, and enters step (5).
(5) calculate clutch in conjunction with speed, and enter step (6);
(6) finish.
Be the flow chart of above-mentioned controlling method as described in Figure 1.
The invention allows for a kind of control gear of realizing the controlling method of above-mentioned AMT transmission for vehicles input shaft rotating speed sensor failure, this control gear comprises that the clutch bonding state judging unit, transmission input shaft speed probe failure diagnosis unit, clutch slip acquiring unit and the clutch that connect successively, in conjunction with speed acquiring unit, Figure 2 shows that the structural representation of this control gear.
The effect of clutch bonding state is the bonding state of judging unit judgement clutch, and triggers transmission input shaft sensor fault diagnosis cell operation during in bonding state at clutch.
The effect of transmission input shaft speed probe failure diagnosis unit is the working state of judgement transmission input shaft speed probe, and the result of this fault diagnosis is sent to clutch slip acquiring unit.
Clutch slip acquiring unit receives the working state of the transmission input shaft speed probe of transmission input shaft speed probe failure diagnosis unit judgement, and when transmission input shaft speed probe works, the tachometer value of the transmission input shaft detecting according to transmission input shaft speed probe calculates clutch slip; And when transmission input shaft speed probe breaks down, according to the calculated value of following formula, as transmission input shaft rotating speed substitution value, and calculate successively clutch slip.Clutch slip acquiring unit obtains after clutch slip, sends it to clutch in conjunction with speed acquiring unit.
Transmission input shaft rotating speed substitution value=transmission output speed * speed changer is at shelves velocity ratio
Wherein, speed changer is given value at shelves velocity ratio, according to the difference of speed changer place gear and difference.
Clutch receives in conjunction with speed acquiring unit the clutch slip that clutch slip acquiring unit sends, and calculates clutch in conjunction with speed according to this clutch slip.
Controlling method and the control gear of the AMT vehicle input shaft rotating speed sensor failure that the present invention proposes, can be when transmission input shaft speed probe breaks down, acquisition approaches the approximative value of transmission input shaft rotating speed, thereby the clutch slip and the clutch that obtain are also comparatively accurate in conjunction with speed, solved the problem that vehicle riding comfort that transmission input shaft sensor failure causes and Security reduce greatly.The present invention has guaranteed travelling comfort and the Security of vehicle effectively, has greatly improved the market competitiveness of vehicle.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.Person skilled in the art obviously can easily make various modifications to these embodiments, and General Principle described herein is applied in other embodiments and needn't passes through performing creative labour.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not departing from the improvement that category of the present invention makes and revise all should be within protection scope of the present invention.

Claims (7)

1. a controlling method for AMT transmission for vehicles input shaft rotating speed sensor failure, is characterized in that: described controlling method comprises the following steps:
(1) judge whether transmission input shaft speed probe breaks down; If broken down, enter step (2); Otherwise, enter step (3);
(2) according to following formula, calculate transmission input shaft rotating speed substitution value, as transmission input shaft tachometer value, and enter step (3):
Transmission input shaft rotating speed substitution value=transmission output speed * speed changer is at shelves velocity ratio
(3) using the checkout value of transmission input shaft speed probe as transmission input shaft tachometer value.
2. the controlling method of AMT transmission for vehicles input shaft rotating speed sensor failure according to claim 1, is characterized in that: described controlling method also comprises: according to described transmission input shaft tachometer value, calculate clutch slip.
3. the controlling method of AMT transmission for vehicles input shaft rotating speed sensor failure according to claim 2, is characterized in that: described controlling method also comprises: according to described clutch slip, calculate clutch in conjunction with speed.
4. the controlling method of AMT transmission for vehicles input shaft rotating speed sensor failure according to claim 1, is characterized in that: described controlling method also comprises before in described step (1):
Judge that whether clutch is in bonding state; If so, enter step (1); If not, finish.
5. a control gear of realizing the controlling method of AMT transmission for vehicles input shaft rotating speed sensor failure claimed in claim 1, it is characterized in that: described control gear comprises transmission input shaft speed probe failure diagnosis unit, to judge whether transmission input shaft speed probe works, and
The clutch slip acquiring unit being connected with described transmission input shaft speed probe failure diagnosis unit, to receive the working state of the transmission input shaft speed probe of described transmission input shaft speed probe failure diagnosis unit judgement, and when transmission input shaft speed probe works, the tachometer value of the transmission input shaft detecting according to transmission input shaft speed probe calculates clutch slip; And when transmission input shaft speed probe breaks down, the transmission input shaft rotating speed substitution value of calculating according to following formula is as transmission input shaft tachometer value, and calculate clutch slip according to described transmission input shaft tachometer value:
Transmission input shaft rotating speed substitution value=transmission output speed * speed changer is at shelves velocity ratio.
6. the control gear of AMT transmission for vehicles input shaft rotating speed sensor failure according to claim 1, it is characterized in that: described control gear also comprises that the clutch connecting with described clutch slip acquiring unit is combined speed acquiring unit, the described clutch slip obtaining to receive described clutch slip acquiring unit, and calculate clutch in conjunction with speed according to described clutch slip.
7. the control gear of AMT transmission for vehicles input shaft rotating speed sensor failure according to claim 1, it is characterized in that: described control gear also comprises the clutch bonding state judging unit being connected with described transmission input shaft speed probe failure diagnosis unit, with the bonding state of judgement clutch, and at clutch, trigger described transmission input shaft sensor fault diagnosis cell operation during in bonding state.
CN201310522131.1A 2013-10-29 2013-10-29 The control method of AMT transmission for vehicles power shaft speed probe inefficacy and device thereof Active CN103527773B (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103629340A (en) * 2013-11-29 2014-03-12 浙江吉利控股集团有限公司 Control method and control device for transmission
CN104089003A (en) * 2014-06-24 2014-10-08 安徽江淮汽车股份有限公司 Limping-home control method for automatic double-clutch transmission
CN104276161A (en) * 2014-09-22 2015-01-14 潍柴动力股份有限公司 Method and system for controlling failed position sensor of clutch
CN104832640A (en) * 2014-07-29 2015-08-12 北汽福田汽车股份有限公司 Vehicle gear shifting control method and system under failure and vehicle having same
CN108779850A (en) * 2016-03-04 2018-11-09 加特可株式会社 The trouble location detection device of automatic transmission and has its automatic transmission
CN111306294A (en) * 2019-11-28 2020-06-19 安徽江淮汽车集团股份有限公司 Fault diagnosis method and device for rotation speed sensor, electronic equipment and storage medium
CN114148343A (en) * 2021-12-23 2022-03-08 盛瑞传动股份有限公司 Vehicle control method and device, electronic equipment and computer storage medium

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JPH05180326A (en) * 1991-12-28 1993-07-20 Toyota Motor Corp Abnormality judgment device of vehicular engine speed sensor
CN101985976A (en) * 2010-07-23 2011-03-16 浙江吉利汽车研究院有限公司 Automobile auxiliary gearshift control system and control method
CN102853067A (en) * 2012-09-06 2013-01-02 浙江吉利汽车研究院有限公司杭州分公司 Method and device for controlling failure of input shaft speed sensor of AMT
CN103542087A (en) * 2013-10-12 2014-01-29 浙江吉利控股集团有限公司 Method and device for fault-tolerant control of automatic speed changer input shaft rotating speed sensor

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JPH05180326A (en) * 1991-12-28 1993-07-20 Toyota Motor Corp Abnormality judgment device of vehicular engine speed sensor
CN101985976A (en) * 2010-07-23 2011-03-16 浙江吉利汽车研究院有限公司 Automobile auxiliary gearshift control system and control method
CN102853067A (en) * 2012-09-06 2013-01-02 浙江吉利汽车研究院有限公司杭州分公司 Method and device for controlling failure of input shaft speed sensor of AMT
CN103542087A (en) * 2013-10-12 2014-01-29 浙江吉利控股集团有限公司 Method and device for fault-tolerant control of automatic speed changer input shaft rotating speed sensor

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103629340A (en) * 2013-11-29 2014-03-12 浙江吉利控股集团有限公司 Control method and control device for transmission
CN104089003A (en) * 2014-06-24 2014-10-08 安徽江淮汽车股份有限公司 Limping-home control method for automatic double-clutch transmission
CN104089003B (en) * 2014-06-24 2016-03-16 安徽江淮汽车股份有限公司 A kind of double-clutch automatic gearbox limp-home controlling method
CN104832640A (en) * 2014-07-29 2015-08-12 北汽福田汽车股份有限公司 Vehicle gear shifting control method and system under failure and vehicle having same
CN104832640B (en) * 2014-07-29 2017-10-10 北汽福田汽车股份有限公司 Vehicle shift control method, system under failure and the vehicle with it
CN104276161A (en) * 2014-09-22 2015-01-14 潍柴动力股份有限公司 Method and system for controlling failed position sensor of clutch
CN108779850A (en) * 2016-03-04 2018-11-09 加特可株式会社 The trouble location detection device of automatic transmission and has its automatic transmission
CN111306294A (en) * 2019-11-28 2020-06-19 安徽江淮汽车集团股份有限公司 Fault diagnosis method and device for rotation speed sensor, electronic equipment and storage medium
CN114148343A (en) * 2021-12-23 2022-03-08 盛瑞传动股份有限公司 Vehicle control method and device, electronic equipment and computer storage medium

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