WO2023196562A1 - Simplification d'actionnement de changement de vitesse - Google Patents

Simplification d'actionnement de changement de vitesse Download PDF

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Publication number
WO2023196562A1
WO2023196562A1 PCT/US2023/017823 US2023017823W WO2023196562A1 WO 2023196562 A1 WO2023196562 A1 WO 2023196562A1 US 2023017823 W US2023017823 W US 2023017823W WO 2023196562 A1 WO2023196562 A1 WO 2023196562A1
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WO
WIPO (PCT)
Prior art keywords
range
main
splitter
group
clutch
Prior art date
Application number
PCT/US2023/017823
Other languages
English (en)
Inventor
Graeme Jackson
Original Assignee
Eaton Cummins Automated Transmission Technologies
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Eaton Cummins Automated Transmission Technologies filed Critical Eaton Cummins Automated Transmission Technologies
Priority claimed from US18/131,937 external-priority patent/US20230286506A1/en
Publication of WO2023196562A1 publication Critical patent/WO2023196562A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/70—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 specially adapted for change-speed gearing in group arrangement, i.e. with separate change-speed gear trains arranged in series, e.g. range or overdrive-type gearing arrangements
    • F16H61/702—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 specially adapted for change-speed gearing in group arrangement, i.e. with separate change-speed gear trains arranged in series, e.g. range or overdrive-type gearing arrangements using electric or electrohydraulic control means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • 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
    • 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
    • F16H63/46—Signals to a clutch outside the gearbox
    • 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
    • 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
    • F16H2063/506—Signals to an engine or motor for engine torque resume after shift transition, e.g. a resume adapted to the driving style

Definitions

  • Transmissions serve a critical function in translating power provided by a prime mover to a final load.
  • the transmission serves to provide speed ratio changing between the prime mover output (e.g. a rotating shaft) and a load driving input (e.g. a rotating shaft coupled to wheels, a pump, or other device responsive to the driving shaft).
  • the ability to provide selectable speed ratios allows the transmission to amplify torque, keep the prime mover and load speeds within ranges desired for those devices, and to selectively disconnect the prime mover from the load at certain operating conditions. Clever and often complicated apparatus (and the following manners of operation of such apparatus) have been a focus of much inventive effort.
  • Transmissions are subjected to a number of conflicting constraints and operating requirements.
  • the transmission must be able to provide the desired range of torque multiplication while still handling the input torque requirements of the system.
  • the transmission represents an overhead device - the space occupied by the transmission, the weight, and interface requirements of the transmission are all overhead aspects to the designer of the system.
  • Transmission systems are highly complex, and they take a long time to design, integrate, and test; accordingly, the transmission is also often required to meet the expectations of the system integrator relative to previous or historical transmissions. For example, a reduction of the space occupied by a transmission may be desirable in the long run, but for a given system design it may be more desirable that an occupied space be identical to a previous generation transmission, or as close as possible.
  • Previously known transmission systems suffer from one or more drawbacks within a system as described following.
  • Previously known gear sets have relatively few design degrees of freedom, meaning that any shortcomings in the design need to be taken up in the surrounding transmission elements. For example, thrust loads through the transmission, noise generated by gears, and installation issues such as complex gear timing issues, require a robust and potentially overdesigned system in the housing, bearings, and/or installation procedures.
  • Previously known high output transmissions, such as for trucks typically include multiple interfaces to the surrounding system (e.g., electrical, air, hydraulic, and/or coolant), each one requiring expense of design and integration, and each introducing a failure point into the system.
  • the subject disclosure pertains to shift management of a vehicle transmission. It is to be appreciated that shift management may be enacted through a control device, and that a control device may be local to an operating transmission or remote from an operating transmission.
  • a control device may be local to an operating transmission or remote from an operating transmission.
  • a system comprising a processor coupled to a memory that includes instructions that, when executed by the processor, cause the processor to engage in a controlled manner through the shift management.
  • the instructions can further cause the processor to provide an alternative embodiment of a shift management sequence, whereby benefits such as smooth and fast gear engagements may be obtained.
  • FIG. 1 illustrates a transmission cutaway view highlighting particular portions that will be discussed in later aspects of the innovation.
  • FIG. 2 is a transmission schematic related to FIG. 1
  • FIG. 3 is a transmission schematic highlighting particular portions that will be discussed in later aspects of the innovation.
  • FIG. 4 is a control state diagram of an example shift sequence.
  • FIG. 5 is a control state diagram of an example shift sequence highlighting aspects of the innovation.
  • FIGs. 6A-B are flow chart diagrams of example methods of shift management according to aspects of the innovation.
  • FIG. 7 is a combination flow chart diagram and control state diagram and example speed versus normalized time chart of the method shown in FIG. 6.
  • FIG. 8 is an example schematic indicating components within a range group that may be eliminated based on aspects of the innovation.
  • FIG. 9 is a block diagram illustrating a suitable operating environment for aspects of the subject disclosure.
  • the present disclosure is directed to improvements of transmissions configured for coupling to a prime mover, and more particularly to transmissions for vehicle applications, including truck applications. Even more particularly, the present disclosure is directed to improved processing of gear shift operations that provide for reductions in parts, reductions in related front end costs, improved operations, and incumbent savings from operations including maintenance.
  • an example transmission includes an input shaft configured to couple to a prime mover, a countershaft having a first number of gears mounted thereon, a main shaft having a second number of gears mounted thereon, a shifting actuator that selectively couples the input shaft to the main shaft by rotatably coupling at least one of the first number of gears to the countershaft and/or coupling the second number of gears to the main shaft, where the shifting actuator may be mounted on an exterior wall of a housing, and where the countershaft and the main shaft may be at least partially positioned within the housing.
  • FIG. 1 a transmission 100 is illustrated in a cutaway view highlighting particular portions or groups upon which component simplification can occur in accordance with the subject disclosure. It is to be appreciated that a set of co-owned innovations, for example as presented in patent applications including 16/596,429; 15/663,201; 62/438,201; 62/465,021; and 62/465,024; as well as Patent Cooperation Treaty applications
  • a transmission 100 may be viewed as consisting of a splitter group 110, main group 120 and a range group 130. Operation of the transmission often involves power transfer from a countershaft group 140, as known in existing transmission systems.
  • the designation of 2 X 3 X 2, as well as certain figure acronyms, are also known in existing transmission systems, and for sake of clarity are not discussed herein.
  • Transmission schematic 200 is illustrated upon which component simplification can occur in accordance with the subject disclosure.
  • Transmission schematic 200 is related to FIG. 1 and is depicted in engineering block form, in which splitter group 205 (including splitter synchronizer 225), main group 210 (including main jaw clutch 230 and second main jaw clutch 235), range group 215 (including range synchronizer 240), and countershaft group 220, are reflective of the similar numbered items of FIG. 1.
  • FIG. 3 illustrates a transmission schematic 300 highlighting similar portions of a transmission that portrays an innovative improvement in physical structure as may result from the application of aspects of the innovation disclosed herein.
  • the transmission schematic 300 includes a splitter group 305 (including splitter synchronizer 325), main group 310 (including main jaw clutch 330 and second main jaw clutch 335), range group 315 (including range jaw clutch 345), and countershaft group 320.
  • the range group 315 is able to utilize a range jaw clutch 345 without the introduction of other components.
  • a range synchronizer 240 component is provided (e.g., with a different shift management sequence as disclosed).
  • FIG. 4 portrays a control state diagram 400 of an example gear shift from a 6 th gear to a 7 th gear. It is to be understood, that the description merely provides an example for comparison to an embodiment of the disclosed innovation. It is to be appreciated that gear changes of both gear shifts up from other gears (i.e., upshift), as well as gear shifts down from one or more gears are amenable to aspects of the innovation, and that a Person Having Ordinary Skill In The Art can readily understand and apply the disclosed innovation in such additional examples.
  • a gear shift is started or initiated.
  • a gear is engaged, for example gear 6.
  • one or more main clutches is in a ramp down torque mode.
  • a splitter group for example, splitter group 205, as shown in FIG. 2, a splitter synchronizer is engaged.
  • An inertia brake is off.
  • a main box jaw clutch is engaged, and a range synchronizer is engaged.
  • the shift is in process, and the engine speed control is at target, while the main clutch is open.
  • the main box jaw clutch is disengaged.
  • the splitter synchronizer, inertia brake and range synchronizer states are not changed.
  • the shift is in process as the splitter synchronizer is disengaged, the main box jaw clutch is in a neutral state, and the range synchronizer is disengaged. The status of the engine, main clutch, and inertia brake are maintained.
  • the shift is in process as the splitter synchronizer and the range synchronizer each sync.
  • the status of the engine, main clutch, inertia brake, and main box jaw clutch are maintained.
  • the shift is in process as the splitter synchronizer engages.
  • the status of the engine, main clutch, inertia brake, main box jaw clutch, and range synchronizer are maintained.
  • the shift is in process as the splitter synchronizer stays engaged, and the inertia brake status becomes on sync main. The status of the engine, main clutch, inertia brake, and main box jaw clutch are maintained. [0036] At 470, the shift is in process as the range synchronizer engages. The status of the engine, main clutch, splitter synchronizer, inertia brake, and main box jaw clutch are maintained. [0037] At 480, the shift is in process as the inertia brake is off, and the main box jaw clutch engages. The status of the engine, main clutch, splitter synchronizer, and inertia brake are maintained.
  • the shift finalizes for example, at gear 7 as the engine ramps up torque, the main clutch ramps up torque, the inertia brake remains off, and the splitter synchronizer, main box jaw clutch and range synchronizer each stay engaged.
  • an embodiment of a control state diagram 500 for an example shift sequence is provided. It is to be appreciated that the complicated range synchronizer has been replaced with a simplified range jaw clutch. In order to accommodate this advantage - without adding a new component, such as for example, a motor driver, for example modifying a configuration by replacing a splitter synchronizer with a splitter jaw clutch - an advance may be realized by configuring a control sequence differently, thereby enabling a reduction in complexity, without the addition of a separate component.
  • an example shift sequence of a control state diagram 500 reflects a gear shift from one gear to another chosen gear (in this example described in detail herein, gear 6 is shifted to gear 7).
  • a gear shift is started or initiated.
  • a gear is engaged, for example, gear 6.
  • a main clutch is in a ramp down torque mode.
  • a splitter synchronizer is engaged.
  • An inertia brake is off.
  • a main box jaw clutch is engaged, and a range jaw clutch is engaged. It is to be understood and appreciated that the range jaw clutch can be a simplified range jaw clutch.
  • the shift is in process as the described elements continue their status as at 515, with the exception that the inertia brake is brought to an on sync range, and the range jaw clutch is in neutral.
  • the shift is in process as the described elements continue their status as at 515, with the exception that the inertia brake stops its “on sync range,” returning to an off status, and the range jaw clutch is also brought to be engaged. It is to be appreciated that this sequence introduces different control actuation, in particular, prior to a splitter synchronizer disengagement, the inertia brake and the range jaw clutch are used to effect an action typically contemplated by a range synchronizer which typically would occur at the same time as the splitter synchronizer.
  • the shift is in process as the engine speed control is to target, while the main clutch is open. Further, the inertia brake remains off, a main box jaw clutch and the range jaw clutch remain engaged, and the splitter synchronizer is disengaged.
  • the shift is in process as the described elements continue their status as at 545, with the exception that the splitter synchronizer moves to engage.
  • the shift is in process as the engine speed control is to target, while the main clutch is open.
  • the splitter synchronizer remains engaged, the inertia brake remains off, and while the range jaw clutch remain engaged, the main box jaw clutch disengages.
  • the shift is in process, as the engine is in a mode of speed match, while the main clutch turns from a mode of open to a mode of sync main, and the main box jaw clutch is at neutral.
  • Each of the splitter synchronizer, inertia brake, and range jaw clutch continue their status as at 575.
  • the shift is in process as the engine speed match continues, and the main clutch is at slip condition, and the main box jaw clutch engages.
  • Each of the splitter synchronizer, inertia brake, and range jaw clutch continue their status as at 575.
  • the shift finalizes for example, at gear 7 as the engine ramps up torque, the main clutch ramps up torque, the inertia brake remains off, and the splitter synchronizer, main box jaw clutch and range jaw clutch each stay engaged.
  • FIGs. 6A-B a flow chart diagram of example methods of shift management as shown in FIGs. 6A-B. While for purposes of simplicity of explanation, methods may be shown and described as a series of blocks, it is to be understood and appreciated that the disclosed subject matter is not limited by order of the blocks, as some blocks may occur in different orders and/or concurrently with other blocks from what is depicted and described herein. Moreover, not all illustrated blocks may be required to implement the methods described hereinafter. Further, each block or combination of blocks can be implemented by computer program instructions that can be provided to a processor to produce a machine, such that the instructions executing on the processor create a means for implementing functions specified by a flow chart block.
  • FIG. 6A aspects of the innovation are disclosed in the form of a method flow chart for method 600.
  • the acts of the flow chart of FIG. 6A are also reflected in FIG. 7, which provides a combination flow chart diagram, control state diagram and example speed versus normalized time chart 700. It is to be appreciated that details and descriptions explicating the acts are an example, and other embodiments may become evident upon a review of this specification. Therefore, a Person Having Ordinary Skill In The Art may readily understand and apply the disclosed innovation in other additional examples, for example, FIG. 6B that provides an alternative method flow chart.
  • method 600 starts at 610, being in 6 th gear. It is to be appreciated that this is merely an example, and other examples could commence at a different gear, e.g., include being in 1 st or other gears.
  • the method engages in a sync range.
  • the method employs a shift splitter.
  • the method engages a sync main.
  • the method provides that a shift has been completed - in this example, the shift into 7 th gear has been completed.
  • method 600 starts at 610, being in 6 th gear. As mentioned previously, it is to be appreciated that this is merely an example, and other examples could include being in 1 st or other gears.
  • the method disengages the splitter.
  • the method engages in a sync range.
  • the method employs a shift splitter.
  • the method engages a sync main.
  • the method provides that a shift has been completed - in this example, the shift into 7 th gear has been completed.
  • the respective acts 610, 620, 630, 640, and 650 are reflected in the combination state diagram in demarcated areas of 710, 720, 730, 740 and 750 respectively.
  • the method starts in 6 th gear.
  • a sub act is to ramp down torque.
  • item 325 is at LI (hi).
  • item 330 is at L2/C while item 335 is at neutral (N).
  • item 345 is at low.
  • the engine function is ramping down torque, while the master clutch function is ramping down torque capacity. Example speeds of various components are as pictured at 710.
  • range sync is the task.
  • Sub acts can include opening the main clutch, pulling range to neutral, using an i-brake to slow input shaft, counter shaft and main shaft, and to engage the range. Items 325, 330 and 335 remain at their previous condition, while item 345 moves from low to neutral or high.
  • the engine function decelerates to a hold at target speed.
  • the master clutch opens to slip and the i-brake functions to engage syncing input shaft to output shaft speeds. Example speeds of various components are as pictured at 720.
  • Sub acts can include engaging the splitter group shift and dropping the engine to target speed.
  • item 325 moves to L2 or low, and item 345 is at high.
  • the engine function is still decelerating/holding at target speed, and the master clutch function is open. Example speeds of various components are as pictured at 730.
  • the task is to synchronize the main group.
  • Sub acts can include pulling a master brake to neutral, partially closing a clutch, and using the clutch to synchronize the main group (main box), and then engaging a master brake.
  • item 325 remains at L2 (low)
  • item 330 shifts to neutral
  • item 335 shifts to L4/D.
  • Item 345 in the range group remains at high.
  • the engine function remains at decelerating/holding at target speed, and the master clutch function is partially closed to provide synchronization.
  • Example speeds of various components are as pictured at 740.
  • Sub acts can include ramping up torque, which is completed by the engine function, while the master clutch function ramps up torque capacity.
  • Example speeds of various components are as pictured at 750.
  • FIG 8 a portion 800 of a range group is shown upon which component simplification can occur in accordance with the subject disclosure.
  • synchronizer friction cones and pre-energizer parts such as for example 3102, 3202 and 806 are shown, and would be configurations related to a range synchronizer as may be a part of the range group 215 as shown in FIG. 2.
  • a range group 315 as may be seen in FIG. 3, a simplified range jaw clutch (e.g., without inducing the need for any other components such as a motor generator) could be configured, eliminating such components and it is to be further appreciated, that this simplification is provided by way of the change in control sequence for the shift control as discussed in relation to FIGS.
  • gear positions described as Ll/Hi, L2/Lo may apply to an overdrive transmission, but can be re-arranged for other ratios such as a direct drive transmission (e.g., top gear ratio 1 : 1).
  • a direct drive transmission it is common for gear positions to be re-arranged to Ll/Lo and L2/Hi.
  • FIG. 9, as well as the following discussion, is intended to provide a brief, general description of a suitable environment in which various aspects of the disclosed subject matter can be implemented.
  • the suitable environment is solely an example and is not intended to suggest any limitation regarding scope of use or functionality.
  • program modules include routines, programs, components, data structures, among other things, that perform particular tasks and/or implement particular abstract data types.
  • an example computing device 905 e.g., desktop, laptop, tablet, watch, server, hand-held, programmable consumer or industrial electronics, set-top box, game system, compute node, and the like.
  • the computing device 905 includes one or more processor(s) 910, memory 915, system bus 920, storage device(s) 925, input device(s) 930, output device(s) 935, and communications connection(s) 940.
  • the system bus 920 communicatively couples at least the above system constituents.
  • the computing device 905 in its simplest form, can include one or more processors 910 coupled to memory 915, wherein the one or more processors 910 execute various computer-executable actions, instructions, and or components stored in the memory 915.
  • the processor(s) 910 can be implemented with a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field- programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein.
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • FPGA field- programmable gate array
  • a general-purpose processor may be a microprocessor, but in the alternative, the processor may be any processor, controller, microcontroller, or state machine.
  • the processor(s) 910 may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, multicore processors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
  • the processor(s) 910 can be a graphics processor unit (GPU) that performs calculations concerning digital image processing and computer graphics.
  • GPU graphics processor unit
  • the computing device 905 can include or otherwise interact with a variety of computer-readable media to facilitate control of the computing device to implement one or more aspects of the disclosed subject matter.
  • the computer-readable media can be any available media accessible to the computing device 905 and includes volatile and non-volatile media, and removable and non-removable media.
  • Computer-readable media can comprise two distinct and mutually exclusive types: storage media and communication media.
  • Storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storage of information such as computer- readable instructions, data structures, program modules, or other data.
  • Storage media includes storage devices such as memory devices (e.g., random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), magnetic storage devices (e.g., hard disk, floppy disk, cassettes, tape%), optical disks (e.g., compact disk (CD), digital versatile disk (DVD), and solid-state devices (e.g., solid-state drive (SSD), flash memory drive (e.g., card, stick, key drive. . .), or any other like mediums that store, as opposed to transmit or communicate, the desired information accessible by the computing device 905. Accordingly, storage media excludes modulated data signals as well as that which is described with respect to communication media.
  • RAM random access memory
  • ROM read-only memory
  • EEPROM electrically erasable
  • Communication media embodies computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
  • modulated data signal means a signal that has one or more of its characteristics set or changed in such a manner as to encode information in the signal.
  • communication media includes wired media such as a wired network or direct-wired connection, and wireless media such as acoustic, radio frequency (RF), infrared, and other wireless media.
  • RF radio frequency
  • the memory 915 and storage device(s) 925 are examples of computer-readable storage media.
  • the memory 915 may be volatile (e.g., random access memory (RAM)), non-volatile (e.g., read only memory (ROM), flash memory. . .), or some combination of the two.
  • RAM random access memory
  • ROM read only memory
  • BIOS basic input/output system
  • the basic input/output system (BIOS) including basic routines to transfer information between elements within the computing device 905, such as during start-up, can be stored in non-volatile memory, while volatile memory can act as external cache memory to facilitate processing by the processor(s) 910, among other things.
  • the storage device(s) 925 include removable/non-removable, volatile/non- volatile storage media for storage of vast amounts of data relative to the memory 915.
  • storage device(s) 925 include, but are not limited to, one or more devices such as a magnetic or optical disk drive, floppy disk drive, flash memory, solid-state drive, or memory stick.
  • Memory 915 and storage device(s) 925 can include, or have stored therein, operating system 945, one or more applications 950, one or more program modules 955, and data 960.
  • the operating system 945 acts to control and allocate resources of the computing device 905.
  • Applications 950 include one or both of system and application software and can exploit management of resources by the operating system 945 through program modules 955 and data 960 stored in the memory 915 and/or storage device(s) 925 to perform one or more actions. Accordingly, applications 950 can turn a computing device into a specialized machine in accordance with the logic provided thereby. In other words, it is to be appreciated that configuring general computing components to carry out an ordered specific sequence may be construed as a special purpose machine.
  • All or portions of the disclosed subject matter can be implemented using standard programming and/or engineering techniques to produce software, firmware, hardware, or any combination thereof to control the computing device 905 to realize the disclosed functionality.
  • all or portions of the shift management system 965 can be, or form part of, the application 950, and include one or more modules 955 and data 960 stored in memory and/or storage device(s) 925 whose functionality can be realized when executed by one or more processor(s) 910.
  • the processor(s) 910 can correspond to a system on a chip (SOC) or like architecture including, or in other words integrating, both hardware and software on a single integrated circuit substrate.
  • the processor(s) 910 can include one or more processors as well as memory at least similar to the processor(s) 910 and memory 915, among other things.
  • Conventional processors include a minimal amount of hardware and software and rely extensively on external hardware and software.
  • a SOC implementation of a processor is more powerful, as it embeds hardware and software therein that enable particular functionality with minimal or no reliance on external hardware and software.
  • the shift management system 965 and/or functionality associated therewith can be embedded within hardware in a SOC architecture.
  • the input device(s) 930 and output device(s) 935 can be communicatively coupled to the computing device 905.
  • the input device(s) 930 can include a pointing device (e.g., mouse, trackball, stylus, pen, touchpad ...), keyboardjoystick, microphone, voice user interface system, camera, motion sensor, and a global positioning satellite (GPS) receiver and transmitter, among other things.
  • the output device(s) 935 can correspond to a display device (e.g., liquid crystal display (LCD), light emitting diode (LED), plasma, organic light-emitting diode display (OLED). . .), speakers, voice user interface system, printer, and vibration motor, among other things.
  • the input device(s) 930 and output device(s) 935 can be connected to the computing device 905 by way of wired connection (e.g., bus), wireless connection (e.g., Wi-Fi, Bluetooth ...), or a combination thereof.
  • the computing device 905 can also include communication connection(s) 940 to enable communication with at least a second computing device 970 utilizing a network 975.
  • the communication connection(s) 940 can include wired or wireless communication mechanisms to support network communication.
  • the network 975 can correspond to a local area network (LAN) or a wide area network (WAN) such as the Internet.
  • the second computing device 970 can be another processor-based device with which the computing device 905 can interact.
  • the computing device 905 can perform operations associated with the shift management system 965, and the second computing device 970 can correspond to one or more servers or other systems that provide network-accessible services for use by the shift management system 965.
  • the second computing device 970 can supply valuable driving data for use by the shift management system 965 in remote shift management.
  • Various portions of the disclosed systems and methods above can include or employ artificial intelligence, machine learning, or knowledge or rule-based components, subcomponents, processes, means, methodologies, or mechanisms (e.g., support vector machines, neural networks, expert systems, Bayesian belief networks, fuzzy logic, data fusion engines, classifiers, and the like).
  • Such components can automate certain mechanisms or processes performed thereby, making portions of the systems and methods more adaptive as well as efficient and intelligent.
  • the predictive model component 980 of the shift management system 965 can employ such mechanisms to predict or otherwise infer shift changes based on changing conditions.
  • the mitigation component 985 can use such mechanisms to infer and suggest a mitigation strategy.
  • a component may be but is not limited to being a process running on a processor, a processor, an object, an instance, an executable, a thread of execution, a program, and/or a computer.
  • a component may be but is not limited to being a process running on a processor, a processor, an object, an instance, an executable, a thread of execution, a program, and/or a computer.
  • an application running on a computer and the computer can be a component.
  • One or more components may reside within a process and/or thread of execution, and a component may be localized on one computer and/or distributed between two or more computers.
  • the term “infer” or “inference” generally refer to the process of reasoning about or inferring states of a system, a component, an environment, or a user from one or more observations captured by way of events or data, among other things. Inference may be employed to identify a context or an action or may be used to generate a probability distribution over states, for example. An inference may be probabilistic. For example, computation of a probability distribution over states of interest can be based on a consideration of data or events. Inference may also refer to techniques employed for composing higher-level events from a set of events or data. Such inference may result in the construction of new events or new actions from a set of observed events or stored event data, whether or not the events are correlated in close temporal proximity, and whether the events and data come from one or several events and data sources.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Control Of Transmission Device (AREA)

Abstract

Une transmission est soumise à une gestion de changement de vitesse qui permet de changer des vitesses d'une manière contrôlée afin de pouvoir simplifier la partie et réduire la complexité du système. En particulier, un composant de synchroniseur de plage peut être remplacé par un embrayage à mâchoire de plage simplifié, sans devoir installer d'autres composants tels qu'un moteur-générateur ou un démarreur-générateur.
PCT/US2023/017823 2022-04-08 2023-04-07 Simplification d'actionnement de changement de vitesse WO2023196562A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US202263328925P 2022-04-08 2022-04-08
US63/328,925 2022-04-08
US18/131,937 US20230286506A1 (en) 2016-12-22 2023-04-07 Gear shift actuation simplification
US18/131,937 2023-04-07

Publications (1)

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WO2023196562A1 true WO2023196562A1 (fr) 2023-10-12

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5416698A (en) * 1993-07-09 1995-05-16 Eaton Corporation Input shaft overspeed warning system
US5839319A (en) * 1996-06-19 1998-11-24 Eaton Corporation System for preventing gear hopout in a compound transmission
US20090305833A1 (en) * 2008-06-09 2009-12-10 Zf Friedrichshafen Ag Multi-group transmission of a motor vehicle
US20120031230A1 (en) * 2009-03-07 2012-02-09 Manfred Guggolz Group transmission device
US20180363777A1 (en) * 2015-06-18 2018-12-20 Dana Limited A method of making a synchronous shift between two modes of a mutli-mode continously variable transmission
US20210245761A1 (en) * 2018-05-18 2021-08-12 Zf Friedrichshafen Ag Method and control device for operating a drivetrain

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5416698A (en) * 1993-07-09 1995-05-16 Eaton Corporation Input shaft overspeed warning system
US5839319A (en) * 1996-06-19 1998-11-24 Eaton Corporation System for preventing gear hopout in a compound transmission
US20090305833A1 (en) * 2008-06-09 2009-12-10 Zf Friedrichshafen Ag Multi-group transmission of a motor vehicle
US20120031230A1 (en) * 2009-03-07 2012-02-09 Manfred Guggolz Group transmission device
US20180363777A1 (en) * 2015-06-18 2018-12-20 Dana Limited A method of making a synchronous shift between two modes of a mutli-mode continously variable transmission
US20210245761A1 (en) * 2018-05-18 2021-08-12 Zf Friedrichshafen Ag Method and control device for operating a drivetrain

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