WO2018104026A2 - Verfahren zum betreiben eines pneumatischen stellsystems eines getriebes und steuergerät zur durchführung des verfahrens - Google Patents
Verfahren zum betreiben eines pneumatischen stellsystems eines getriebes und steuergerät zur durchführung des verfahrens Download PDFInfo
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- WO2018104026A2 WO2018104026A2 PCT/EP2017/079546 EP2017079546W WO2018104026A2 WO 2018104026 A2 WO2018104026 A2 WO 2018104026A2 EP 2017079546 W EP2017079546 W EP 2017079546W WO 2018104026 A2 WO2018104026 A2 WO 2018104026A2
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- WO
- WIPO (PCT)
- Prior art keywords
- switching
- control system
- air mass
- cylinders
- transmission
- Prior art date
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Classifications
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/20—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
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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
- F16H61/0021—Generation or control of line pressure
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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
- F16H61/02—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
- F16H61/0262—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 hydraulic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/40—Flow control
- F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
- F15B2211/41572—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source and an output member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/665—Methods of control using electronic components
- F15B2211/6653—Pressure control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
- F15B2211/7053—Double-acting output members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/86—Control during or prevention of abnormal conditions
- F15B2211/863—Control during or prevention of abnormal conditions the abnormal condition being a hydraulic or pneumatic failure
- F15B2211/8636—Circuit failure, e.g. valve or hose failure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/87—Detection of failures
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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
- F16H2061/1208—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures with diagnostic check cycles; Monitoring of 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
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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
- F16H2061/1248—Resuming normal operation
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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
- 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
- F16H2061/126—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 the controller
- F16H2061/1264—Hydraulic parts of the controller, e.g. a sticking valve or clogged channel
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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
- 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
- F16H2061/1288—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 an actuator
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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
- 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
- F16H2061/1292—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 the power supply, e.g. the electric power supply
Definitions
- the invention relates to a method for operating a pneumatic control system of a transmission. Furthermore, the invention relates to a control device, which is designed to carry out the method and a corresponding computer program product.
- a pneumatic adjusting system has an air reservoir, which is coupled via at least one first switching valve to a positioner space of the adjusting system.
- each shift cylinder can be supplied with air via at least one second switching valve.
- Faulty leaks in the control system or in the gearbox can lead to the fact that the shift cylinder can not be properly operated, which may make it impossible under certain circumstances, reliably perform circuits in the transmission. Under certain circumstances, this can result in a total standstill of a vehicle comprising the transmission. It is therefore of importance to reliably detect an optionally occurring fault leakage in a pneumatic control system of a transmission in order to initiate a replacement reaction, if necessary, such as a modified circuit sequence in order to maintain the operational readiness of the vehicle.
- the present invention based on the object to provide a novel method for operating a pneumatic control system of a transmission.
- a novel method for detection an error leakage in the pneumatic control system of the transmission and a method for responding to an error detected in a pneumatic control system of the transmission error are proposed.
- a corresponding control device and a computer program product for carrying out the method are to be specified.
- a method for operating a pneumatic control system of a transmission in which the pneumatic control system has an air reservoir in which a first pressure prevails.
- the air reservoir is coupled to a whilrraum the pneumatic control system in which a second pressure prevails.
- the actuator chamber of the pneumatic control system is coupled via switching valves with shift cylinders of the transmission.
- an accounting of the air mass consumed during a circuit execution in the active switching cylinders is proposed.
- the active switching cylinder on the appropriate Switching valves supplied air mass significantly higher than the air mass sum, which is dependent on the air mass in the active switching cylinder and the air mass of a current, even in a proper operation of the control system occurring base leakage of the active switching cylinder.
- the switching cylinder supplied air mass over a defined period of time is greater than the mass air flow. This can be closed particularly advantageous to a fault leakage in the pneumatic control system.
- the active mass of the switching cylinders via the switching valves supplied air mass is determined depending on the mass flow through the active switching valves, the mass flow is determined via an active switching valve depending on the pressure prevailing in the whilrraum and depending on a maximum mass flow through the respective switching valve.
- This determination of the switching masses to the switching cylinders supplied air mass is simple and reliable.
- the target air mass is determined in the active switching cylinders for the air mass sum depending on a piston area of the respective active shift cylinder and depending on switching paths of the respective active shift cylinder. This allows a simple and reliable determination of the air mass in the switching cylinders for the air mass sum.
- the current base leakage of the respective active shift cylinder for the air mass total is preferably determined as a function of a previous base leakage of the respective active shift cylinder.
- the natural base leakage of the active switching cylinder which also occurs in a non-defective leakage of the pneumatic control system, can be determined easily and reliably.
- a method for operating a pneumatic control system of a transmission in which the pneumatic adjusting system has an air reservoir in which a first pressure prevails.
- the air reservoir is coupled to a whilrraum the pneumatic control system in which a second pressure prevails.
- the actuator chamber of the pneumatic control system is coupled via switching valves with shift cylinders of the transmission.
- the switching valves required for the execution of a shift in the transmission are finally activated, whereby the switching cylinders of the transmission associated with the shift valves are pressurized.
- the method according to the invention proposes a replacement reaction in the event of a recognized fault leakage in the pneumatic control system, by means of which a gear in the transmission can be safely switched even if a fault is detected.
- the shutdown period of the switching valves at a detected fault leakage can be, for example, 400 to 600 milliseconds.
- control device for operating a pneumatic control system of a motor vehicle is specified in claim 9, which is used to carry out the invention. adapted to the method according to the invention.
- the control unit can be designed for example as a transmission control unit.
- the solution according to the invention can also be embodied as a computer program product which, when running on a processor of a control device, instructs the processor by software to carry out the associated process steps according to the invention.
- a computer-readable medium is the subject of the invention, on which a computer program product described above is stored retrievably.
- Fig. 1 is a block diagram of a pneumatic control system of a transmission
- Fig. 2 is a diagram for illustrating details of the method for operating the pneumatic control system.
- the invention relates to a method for detecting too high or incorrect leakage in a pneumatic control system of a transmission, which can lead to the fact that circuits can no longer be performed properly in the transmission. Such leakage is referred to as fault leakage. Furthermore, the invention relates to a method by which a replacement reaction is carried out at a detected fault leakage in the pneumatic control system, by means of which a gear in the transmission safely switched even with a detected fault leakage can be. Furthermore, the invention relates to a control device for carrying out the method.
- Fig. 1 shows an example of the basic structure of a pneumatic control system 1 for a transmission, namely in Fig. 1 for a group transmission, wherein in each transmission part of the group transmission at least one pneumatically actuated shift cylinder 2, 3 is installed.
- the switching cylinder 2 shown in Fig. 1 is a pneumatically actuated switching cylinder of a series group of the group transmission, which via two switching valves 7, 8 can be actuated.
- the shift cylinder 3 is a pneumatically actuated shift cylinder of a main transmission of the group transmission, which is actuated via four switching valves 9, 10, 1 1, 12.
- the shift cylinder 2 which serves to control the ballast, is associated with a position sensor 14, by means of which the positions of a control piston 16 of the shift cylinder 2 can be detected by measurement.
- the shift cylinder 3, which serves to drive the main transmission, a position sensor 13 is associated with the aid of which the positions of a control piston 15 of the shift cylinder 3 can be detected by measurement.
- the pneumatic adjusting system 1 of FIG. 1 comprises an air reservoir 5.
- a first pressure namely a pressure.
- the pneumatic actuating system 1 comprises a so-called actuator chamber 6, in which a second pressure prevails, namely a pressure p 2 .
- the actuator chamber 6 is coupled to the air reservoir 5 via a pressure reducing valve 4.
- the pressure reducing valve 4 By the pressure reducing valve 4, the pressure pi of the air reservoir 5 is reduced to an adjustable, constant pressure p 2 .
- each shift cylinder 2, 3 are supplied starting from the actuator chamber 6 with compressed air, wherein each shift cylinder 2, 3 is coupled via switching valves 7, 8, 9, 10 with the actuator chamber 6.
- each of the switching cylinders 2, 3 is coupled to the actuator chamber 6 via two switching valves 7, 8 or 9, 10.
- Linder 2, 3 of the transmission are supplied with compressed air and in which one or more switching valves 7, 8, 9, 10 are active, a the active switching cylinders 2, 3 via the corresponding switching valves 7, 8, 9, 10 detected air mass determined. Furthermore, a mass of air mass from a required for carrying out the circuit target air mass in the active switching cylinders 2, 3 and a current base leakage of the active switching cylinder 2, 3 is determined.
- the basic leakage is also referred to as natural leakage and always occurs in the operation of the pneumatic control system 1.
- an accounting of the air mass consumed during a circuit execution in the pneumatic control system 1 accordingly takes place.
- the active switching cylinder 2, 3 via the corresponding switching valves 7, 8, 9, 10 supplied air mass is significantly higher than the air mass sum of the air mass in the active switching cylinders 2, 3 and the air mass of a current base leakage of the active Shift cylinder 2, 3 is dependent.
- an error leakage of an active switching cylinder 2, 3 is detected. Leak detection is performed separately for each of the shift cylinders 2, 3.
- the air mass flowing via the respective active switching valve 7, 8, 9, 10 into the switching cylinder 2, 3 starting from the actuator chamber 6 results from the integration of the mass flow via the respective active switching valve 7, 8, 9, 10.
- the required for a successful implementation of a circuit in the transmission target air mass in the respective active switching cylinder 2.3 is determined depending on a piston area of the respective active shift cylinder 2, 3 and depending on switching paths of the respective active shift cylinder 2, 3.
- Vsoii Vi + V 2
- V 1 A 1 * (x - 1 MIN )
- V 2 A 2 * (l MAX - x)
- msoii is the current target air mass of the active shift cylinder
- V SO II is the current target volume of the active shift cylinder
- p is the air density
- Vi is the active volume in the first actuating direction of the actuating piston
- V 2 is the active volume in the second actuating direction of the actuating piston
- the active piston surface in the first actuating direction of the actuating piston wherein A 2
- the active piston surface in the second direction of actuation of Control piston is, where x is the current piston position, where Imax is the maximum shift travel and where Un is the minimum shift travel.
- the first actuating direction of the actuating piston can be understood to mean an actuation of the actuating piston in the direction of increasing position values.
- the second operating direction of the actuating piston is the first actuating tion direction opposite and thus corresponds to an actuation of the actuating piston in the direction of decreasing position values.
- V ⁇ V 2 can also be superimposed additively a dead volume of the switching cylinder.
- the current base leakage of the respective active switching cylinder 2, 3 for the mass air mass is preferably calculated according to the following equation:
- the air mass is m, and determines the basic leakage to the above formulas separately.
- an error leakage of the pneumatic control system 1 is detected when, over a defined time during the execution of a circuit in the transmission, the active switching cylinder 2, 3 via the corresponding switching valves 7, 8, 9, 10 supplied air mass m is greater as the air mass sum of the required air mass m required for the implementation of the circuit so n in the active
- the switching cylinder 2, 3 and the current base leakage m Leak of the activated switching cylinder 2, 3 is:
- switched off switching valves 7, 8, 9, 10 can be introduced by means of an air compressor air in the pneumatic control system 1, whereby in the actuator chamber 6 again a pressure p2 is constructed, since by the switched-off switching valves 7, 8, 9, 10, the connection between the actuator chamber 6 and the switching cylinders 2, 3 is interrupted.
- the switching valves 7, 8, 9, 10 required for the execution of a circuit are activated, whereby a gear in the transmission can be shifted with the pressure p 2 built up in the actuator chamber 6.
- the air mass supplied via the switching valves 7, 8, 9, 10 to the respective switching cylinders 2, 3 is determined as a function of a mass flow via the respective switching valve 7, 8, 9, 10.
- the invention further relates to a control device for carrying out the method according to the invention.
- the control device comprises means which serve to carry out the method according to the invention.
- These resources are hardware resources and software resources.
- the hardware-side means are data interfaces in order to exchange data with the modules involved in carrying out the method according to the invention. So for example, the control unit exchanges data with position sensors 13, 14 which are installed on the shift cylinders 3, 2 and which sen the positions of the control pistons 15, 16.
- the hardware-side means of the control device is also a processor for data processing and a memory for data storage.
- the software resources are program modules for carrying out the method according to the invention.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Pressure Circuits (AREA)
- Gear-Shifting Mechanisms (AREA)
- Control Of Transmission Device (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112019010071A BR112019010071A2 (pt) | 2016-12-09 | 2017-11-17 | processo para operação de um sistema de regulação pneumático de uma transmissão e aparelho de controle para execução do processo |
US16/465,635 US10794477B2 (en) | 2016-12-09 | 2017-11-17 | Method for operating a pneumatic actuating system of a transmission and control device for carrying out the method |
CN201780075867.5A CN110050149B (zh) | 2016-12-09 | 2017-11-17 | 用于运行传动装置的气动调节系统的方法以及用于执行该方法的控制器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016224550.3 | 2016-12-09 | ||
DE102016224550.3A DE102016224550A1 (de) | 2016-12-09 | 2016-12-09 | Verfahren zum Betreiben eines pneumatischen Stellsystems eines Getriebes und Steuergerät zur Durchführung des Verfahrens |
Publications (2)
Publication Number | Publication Date |
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WO2018104026A2 true WO2018104026A2 (de) | 2018-06-14 |
WO2018104026A3 WO2018104026A3 (de) | 2018-08-02 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP2017/079546 WO2018104026A2 (de) | 2016-12-09 | 2017-11-17 | Verfahren zum betreiben eines pneumatischen stellsystems eines getriebes und steuergerät zur durchführung des verfahrens |
Country Status (5)
Country | Link |
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US (1) | US10794477B2 (de) |
CN (1) | CN110050149B (de) |
BR (1) | BR112019010071A2 (de) |
DE (1) | DE102016224550A1 (de) |
WO (1) | WO2018104026A2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102019218523A1 (de) * | 2019-11-29 | 2021-06-02 | Zf Friedrichshafen Ag | Verfahren und Steuergerät zum Bestimmen eines Schaltdrucks und/oder zum Erkennen einer Leckage in einem pneumatischen Schaltsystem |
DE102019218522A1 (de) * | 2019-11-29 | 2021-06-02 | Zf Friedrichshafen Ag | Verfahren zur Einstellung eines Schaltdrucks in einem pneumatischen Schaltsystems eines Getriebes und Steuergerät |
DE102019218521A1 (de) * | 2019-11-29 | 2021-06-02 | Zf Friedrichshafen Ag | Verfahren zum Betreiben eines über einen pneumatischen Steller betätigten Stellelements eines Getriebes und Steuergerät |
Citations (1)
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DE102011075168A1 (de) | 2011-05-03 | 2012-11-08 | Zf Friedrichshafen Ag | Verfahren zum Erkennen und Berücksichtigen einer Leckage in der Stellvorrichtung einer druckmittelbetätigten Kupplung |
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EP0832011B1 (de) * | 1994-05-13 | 2001-10-10 | McNeilus Truck and Manufacturing, Inc. | Leckage überwachung für hydraulische systeme |
US6026682A (en) * | 1995-11-14 | 2000-02-22 | Eoa Systems, Incorporated | Coolant safety system for automated welding apparatus |
DE20120609U1 (de) * | 2001-12-20 | 2002-03-21 | Beck IPC GmbH, 35578 Wetzlar | Diagnoseeinrichtung für eine fluidtechnische Einrichtung sowie damit ausgestattete fluidtechnische Einrichtung |
US6678584B2 (en) * | 2002-05-03 | 2004-01-13 | Fisher Controls International Llc | Method and apparatus for performing diagnostics in a control loop of a control valve |
DE10355250B4 (de) | 2003-11-26 | 2005-09-01 | Festo Ag & Co. | Verfahren und Vorrichtung zur Leckage-Ermittlung |
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2016
- 2016-12-09 DE DE102016224550.3A patent/DE102016224550A1/de active Pending
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2017
- 2017-11-17 WO PCT/EP2017/079546 patent/WO2018104026A2/de active Application Filing
- 2017-11-17 BR BR112019010071A patent/BR112019010071A2/pt not_active Application Discontinuation
- 2017-11-17 US US16/465,635 patent/US10794477B2/en active Active
- 2017-11-17 CN CN201780075867.5A patent/CN110050149B/zh active Active
Patent Citations (1)
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DE102011075168A1 (de) | 2011-05-03 | 2012-11-08 | Zf Friedrichshafen Ag | Verfahren zum Erkennen und Berücksichtigen einer Leckage in der Stellvorrichtung einer druckmittelbetätigten Kupplung |
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CN110050149A (zh) | 2019-07-23 |
BR112019010071A2 (pt) | 2019-10-01 |
CN110050149B (zh) | 2021-02-26 |
DE102016224550A1 (de) | 2018-06-14 |
US20190309842A1 (en) | 2019-10-10 |
WO2018104026A3 (de) | 2018-08-02 |
US10794477B2 (en) | 2020-10-06 |
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