EP3426952A1 - Procede de controle securitaire de la configuration d'un dispositif d'accouplement - Google Patents
Procede de controle securitaire de la configuration d'un dispositif d'accouplementInfo
- Publication number
- EP3426952A1 EP3426952A1 EP17707368.1A EP17707368A EP3426952A1 EP 3426952 A1 EP3426952 A1 EP 3426952A1 EP 17707368 A EP17707368 A EP 17707368A EP 3426952 A1 EP3426952 A1 EP 3426952A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- neutral
- coupling device
- configuration
- control method
- position information
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 29
- 238000010168 coupling process Methods 0.000 title claims abstract description 29
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000007935 neutral effect Effects 0.000 claims abstract description 59
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000012790 confirmation Methods 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 claims 1
- 238000011194 good manufacturing practice Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 241000282472 Canis lupus familiaris Species 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
- F16H63/50—Signals to an engine or motor
-
- 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
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/2807—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted using electric control signals for shift actuators, e.g. electro-hydraulic control therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/68—Inputs being a function of gearing status
-
- 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
- F16H61/04—Smoothing ratio shift
- F16H61/0403—Synchronisation before 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
- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/68—Inputs being a function of gearing status
- F16H2059/6807—Status of gear-change operation, e.g. clutch fully engaged
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/68—Inputs being a function of gearing status
- F16H2059/6823—Sensing neutral state of the transmission
-
- 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
- F16H61/04—Smoothing ratio shift
- F16H61/0403—Synchronisation before shifting
- F16H2061/0422—Synchronisation before shifting by an electric machine, e.g. by accelerating or braking the input shaft
-
- 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
- F16H2061/1212—Plausibility checks; Counting means for repeated 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
- F16H2061/122—Avoiding failures by using redundant 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
- F16H2306/00—Shifting
- F16H2306/40—Shifting activities
- F16H2306/48—Synchronising of new gear
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Definitions
- the present invention relates to the control of transmissions, with regard to the operational safety and the approval of shifts made by means of dog clocks, or cleats, without mechanical synchronizers, in transmissions where the synchronization of gears on their shaft is ensured by proper steering of the motor sources.
- a gearbox coupling device secured to a rotation of a movement input shaft thereof, and movable axially on the shaft of on either side of an intermediate neutral position, between two opposite positions, engagement with a crazy gear.
- This invention has a preferred application, but not limited to, hybrid GMPs (powertrains) having several driving sources, in particular a heat engine and one or more electrical machines.
- GMPs powertrains
- the transmission of energy from the powertrain to the wheel is through a multi-configuration gearbox. Moving from one configuration to another requires the synchronization of different elements of the box. Between two engaged gear positions, the sprocket coupling devices have a "neutral configuration", in which power transmission between the GMP and the wheel is cut off.
- the present invention aims to ensure that the synchronization phase is performed in the absence of torque transmitted to the wheel.
- redundant position information is used to secure the neutral configuration.
- FIG. 1 is a simplified representation of a vehicle kinematic chain
- FIG. 2 is a general diagram of the proposed method
- FIGS. 3A to 3D show different relative positions of the dogs of the player and the pinion
- Figures 4A and 4B are timing diagrams.
- FIG. 1 schematically shows the simplified kinematic chain of a vehicle between its drive motor 1, its gearbox 2 and its wheels 3.
- the movement enters the box via an input shaft 4, and comes out of it by an output shaft 5 connected to the wheels 6. It descends from the input shaft 4 on the output shaft 5, by one or the other of two gear slopes 6a, 6b; 7a, 7b, defining two different transmission ratios.
- the coupling device 8 also called walkman, with claws, or jaw, is integral in rotation with the movement input shaft 4.
- This coupling device is axially movable on this shaft, on both sides. other of an intermediate neutral position, between two opposite positions of engagement on one of the two speed gears, or idle gears 6a, 7a, which are stationary axially on the shaft 4.
- the coupling device 8 has two configurations of engagement L and R, depending on the position of the player.
- the method of the invention controls the position of such a coupling device. It uses purposefully two redundant information, to estimate the configuration of the device.
- the main information F is a continuous variable between the Min and Max terminals, and centered on zero. It is representative of the position of the coupling device.
- the second information, FR which is redundant, and summary, compared to the first, takes two possible states: [Neutral] Or [Not Neutral].
- the preliminary analysis of the device highlights the following risk. If synchronization is performed while the coupling system is coupled, the GMP is controlled to achieve a fixed speed, regardless of the driver's desire. During the transient phases, this control can lead to an inadvertent acceleration, or to an untimely deceleration. When the speed is stabilized, the GMP no longer responds to deceleration requests.
- FIG. 2 refers to four particular positions of the device, corresponding to values 0,, ⁇ and ⁇ of F, as a function of the relative position of clabots or claws 8c of the sliding gear, relative to the fixed toothing (jaws or clabots) 7c of the idler gear, which are illustrated by FIGS. 3A to 3D:
- F ⁇ , applicative value of F, where the overlap dd is sufficient to ensure the commitment of a report.
- the initial position "init" of fig 2 is by definition unknown.
- the neutral configuration of the coupling device is defined according to the main position information F of the player, and its displacement setpoint C when the transmission of the torque to the wheel is effectively interrupted.
- the device goes through an uncertain commitment state, when sending a commitment commitment R, L or when sending a neutral setpoint N with a non-neutral main information F.
- From “uncertain R”, we go to "Committed R" with a set point C R, if F> ⁇ .
- the neutral configuration is determined, when the setpoint C is in neutral, and the main position information F is in the zone [-a, +] to ensure that no torque is transmitted,
- a passage of the coupling device is detected, from an uncertain state of engagement to a committed state (R, L), if the main position information takes an application value
- the coupling device is authorized to start the synchronization of the player with one of the two gears 6a, 7a for the purpose of engaging a gear, when the coupling device is in the neutral configuration.
- the method takes into account two particular durations ⁇ and ⁇ , the exit confirmation time of the secure neutral, and the confirmation time of the uncertain states: a coupling device failure is detected if the main position information
- the neutral configuration is secured by redundant information FR on the neutral or non-neutral configuration of the device. Maintaining the redundant information FR on its non-neutral value during a confirmation time ⁇ , while the coupling device is in a neutral configuration, determines a failure of the neutral state.
- We detect a Failure of the neutral position (“Safety neutral failure" in English) if F ⁇ - or F> during the confirmation period ⁇ , or if the redundant information FR goes to "non-neutral" during the confirmation period ⁇ .
- This failure can also be detected by maintaining the main position information outside an area [-a, +] to ensure that no torque is transmitted. In any case, the failure state implies a stop of the synchronization.
- FIG. 4A illustrates the sequencing of the method without confirmation of a fault.
- the coupling device leaves the state "R engaged” to go to "Unspecified R". Synchronization actually begins at ti, when the neutral configuration is reached. The neutral command is aborted after ti. The transition from redundant information FR to neutral confirms the neutral configuration.
- the fault is confirmed at the end of the time ⁇ , of the output confirmation of the neutral configuration, measured from the beginning of the synchronization ti.
- a failure of the neutral configuration is detected, if the main position information F remains outside the range [-, +], after the confirmation time of the uncertain states ⁇ .
- the configuration taken into account for the control of the GMP, and the triggering of the synchronization is obtained from the main information F and the desired position (the set point C).
- the main information F indicates a neutral configuration
- the synchronization can start.
- the redundant information F is used to secure the neutral configuration.
- the transition to the neutral failure state is used to trigger, after a confirmation time, the safety procedure ensuring the safe state of the vehicle, for example to stop the synchronization.
- the invention has many advantages. In particular, it makes it possible to minimize, with a high level of safety, the impact of a synchronization on the road behavior of a vehicle, to avoid unwanted accelerations or decelerations, while optimizing driving pleasure.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
- Hybrid Electric Vehicles (AREA)
- Gear-Shifting Mechanisms (AREA)
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1652009A FR3048748B1 (fr) | 2016-03-10 | 2016-03-10 | Procede de controle securitaire de la configuration d'un dispositf d'accouplement |
PCT/FR2017/050168 WO2017153645A1 (fr) | 2016-03-10 | 2017-01-25 | Procede de controle securitaire de la configuration d'un dispositif d'accouplement |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3426952A1 true EP3426952A1 (fr) | 2019-01-16 |
Family
ID=55808724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17707368.1A Withdrawn EP3426952A1 (fr) | 2016-03-10 | 2017-01-25 | Procede de controle securitaire de la configuration d'un dispositif d'accouplement |
Country Status (11)
Country | Link |
---|---|
US (1) | US20190078684A1 (fr) |
EP (1) | EP3426952A1 (fr) |
JP (1) | JP6771577B2 (fr) |
KR (1) | KR102142030B1 (fr) |
CN (1) | CN109154383B (fr) |
BR (1) | BR112018013785A2 (fr) |
CA (1) | CA3016988A1 (fr) |
FR (1) | FR3048748B1 (fr) |
MX (1) | MX2018010662A (fr) |
RU (1) | RU2018135572A (fr) |
WO (1) | WO2017153645A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110145596B (zh) * | 2019-05-14 | 2020-12-25 | 中国第一汽车股份有限公司 | 离合器自动变速器的档位冲突判断方法及双离合变速器 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4445393A (en) * | 1982-01-18 | 1984-05-01 | Eaton Corporation | Fluid actuated shift bar housing assembly |
US4702127A (en) * | 1986-04-18 | 1987-10-27 | Eaton Corporation | Method for controlling AMT system including gear neutral sensor signal fault detection and tolerance |
US4945484A (en) * | 1988-10-13 | 1990-07-31 | Eaton Corporation | Method and control system for controlling AMT system including detection of erroneous gear neutral indication |
US6019698A (en) * | 1997-12-01 | 2000-02-01 | Daimlerchysler Corporation | Automated manual transmission shift sequence controller |
JP5512336B2 (ja) * | 2010-03-08 | 2014-06-04 | 本田技研工業株式会社 | 自動変速機の制御装置 |
JP2014149020A (ja) * | 2013-01-31 | 2014-08-21 | Aisin Seiki Co Ltd | 自動変速機用ドグクラッチ制御装置 |
FR3018888B1 (fr) * | 2014-03-19 | 2017-08-25 | Peugeot Citroen Automobiles Sa | Procede et dispositif de controle des deplacements des fourchettes d'une boite de vitesses robotisee, par reapprentissage |
CN104455377B (zh) * | 2014-12-09 | 2016-08-24 | 安徽江淮汽车股份有限公司 | 一种换挡拨叉位置学习方法及系统 |
-
2016
- 2016-03-10 FR FR1652009A patent/FR3048748B1/fr active Active
-
2017
- 2017-01-25 WO PCT/FR2017/050168 patent/WO2017153645A1/fr active Application Filing
- 2017-01-25 BR BR112018013785-5A patent/BR112018013785A2/pt unknown
- 2017-01-25 JP JP2018546623A patent/JP6771577B2/ja active Active
- 2017-01-25 MX MX2018010662A patent/MX2018010662A/es unknown
- 2017-01-25 RU RU2018135572A patent/RU2018135572A/ru not_active Application Discontinuation
- 2017-01-25 CA CA3016988A patent/CA3016988A1/fr not_active Abandoned
- 2017-01-25 US US16/082,949 patent/US20190078684A1/en not_active Abandoned
- 2017-01-25 CN CN201780015788.5A patent/CN109154383B/zh active Active
- 2017-01-25 EP EP17707368.1A patent/EP3426952A1/fr not_active Withdrawn
- 2017-01-25 KR KR1020187026154A patent/KR102142030B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
RU2018135572A3 (fr) | 2020-04-29 |
JP2019510939A (ja) | 2019-04-18 |
CN109154383B (zh) | 2020-12-18 |
FR3048748B1 (fr) | 2019-04-26 |
FR3048748A1 (fr) | 2017-09-15 |
US20190078684A1 (en) | 2019-03-14 |
RU2018135572A (ru) | 2020-04-10 |
WO2017153645A1 (fr) | 2017-09-14 |
CN109154383A (zh) | 2019-01-04 |
JP6771577B2 (ja) | 2020-10-21 |
KR20180111985A (ko) | 2018-10-11 |
CA3016988A1 (fr) | 2017-09-14 |
KR102142030B1 (ko) | 2020-08-06 |
MX2018010662A (es) | 2019-01-30 |
BR112018013785A2 (pt) | 2018-12-11 |
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