GB2508794A - Closed loop controlled quickshifter/throttle blipper device having sensor for gear selector position - Google Patents

Closed loop controlled quickshifter/throttle blipper device having sensor for gear selector position Download PDF

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Publication number
GB2508794A
GB2508794A GB1216810.0A GB201216810A GB2508794A GB 2508794 A GB2508794 A GB 2508794A GB 201216810 A GB201216810 A GB 201216810A GB 2508794 A GB2508794 A GB 2508794A
Authority
GB
United Kingdom
Prior art keywords
linear potentiometer
closed loop
throttle
blipper
quickshifter
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Withdrawn
Application number
GB1216810.0A
Other versions
GB201216810D0 (en
Inventor
James Royston Tansley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1216810.0A priority Critical patent/GB2508794A/en
Publication of GB201216810D0 publication Critical patent/GB201216810D0/en
Priority to PCT/GB2013/000389 priority patent/WO2014044996A1/en
Priority to GBGB1406474.5A priority patent/GB201406474D0/en
Publication of GB2508794A publication Critical patent/GB2508794A/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
    • F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
    • 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
    • F16H59/70—Inputs being a function of gearing status dependent on the ratio established
    • 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
    • F16H63/50—Signals to an engine or motor
    • F16H63/502—Signals to an engine or motor for smoothing gear shifts
    • 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
    • B60W2540/00—Input parameters relating to occupants
    • B60W2540/16—Ratio selector position
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

Disclosed is a digital linear potentiometer controlled closed loop quickshifter/throttle blipper device. The device comprises a spherical bearing for a gearlever attachment 1.1, a spherical bearing for a mounting bracket attachment 1.2, a linear potentiometer outer housing 1.3, a linear potentiometer shift rod 1.4, an electronic power and ground connection to a linear potentiometer 1.5, a waterproof cable connector 1.6. The device is designed for sequentially geared racing and road vehicles for both on and off road use. The position of the gear lever is detected and used to feed information to a closed loop control unit which controls the speed of an internal combustion engine during gear shift to ensure engine speed matching when changing up or down gear.

Description

DIGITAL LINEAR POTENTIOMETER CONTROLLED CLOSED LOOP
OUICKSHIFTERITHROTTLE BLIPPER DEVICE
Although very common in racing and for road use, conventional "Quickshifters" are designed to cut the ignition, fuel feeds or retard the ignition to create an interruption in drive allowing for dutchless upshifts on sequentially geared vehides. These are set to interrupt drive for pre-set time(s), this can cause gearbox weal-problems as many car and motorcycle racers plus road users have discovered to their cost. For this reason allied to adding a far higher degree of gearshifting control than methods currently available, the Digital Linear Potentiometer Controlled Closed Loop Quickshifter/Throttle Blipper Device hereafter referred to as the device has been developed.
Currently other conventional Quickshifters use load cells or strain gauges to effect the interruption in drive (generally only for up shifts), because of their mode of operation these systems physically load the gearbox before the drive intelTuption can take place and this inevitably causes wear/damage over a period of use.
Specifically designed as an alternative to the aforementioned methods the device is unique in that it utilises a linear potentiometer to give gearshift feedback instead, which allows the drive to be interrupted and reinstated on upshifts at adjustable pre-programmed gearlever positions without oading the gearbox, this eliminates gearbox wear and also has the added advantage of being far faster than any other Quickshitier culTently available. Because the device utilises Closed Loop Gearshifting Technology the period of drive interruption and thus gearshift times will vary according to conditions, loading and gearbox ratios used, the device monitors gearlever and thus gearshift position at all times and will not reinstate drive (on upshifts) until it sees the pre-programmed gearshift engagement position has been safely made thus adding gearbox protection. That said it can easily be set so accurately that documented evidence of cluteliless upshifts taking under 2SmS (milliseconds) are available to substantiate this fact.
The device's linear potentiometer is specifically designed to attach directly to the vehicle's gearlever. It is light weight, and small in size thus making installation relatively simple, this is then operably connected to a Gearshift Control Unit (OCU) which features an integral digital readout screen with set up buttons for ease of programming and adjustment. The device provides the ideal solution for eliminating gearbox wear and the associated reliability issues that load cells and strain gauges can cause, the device is suitable for any size of sequentially gearboxed vehicle application.
As some drivers/riders requirements may vary such that they only require the Quickshifter element of the device for upshifting (Digital Linear Potentiometer Controlled Closed Loop Quickshifter function of the device) or similarly some drivers/riders may only require the Throttle Blipper element of the device for clutchless downshifting (Digital Linear Potentiometer Controlled Closed Loop Throttle Blipper function of the device), the device has been designed to be equally suited to single use for either of these functions. For clutchless downshifting the device can be used in conjunction with a Remote Cable Operated Throttle Blipping Device or a Telescopic
DIGITAL LINEAR POTENTIOMETER CONTROLLED CLOSED LOOP
OUICKSHIFTERITHROTTLE BLIPPER DEVICE
Throttle Blipping Device, (both of which have Patent applications on-going), it can also operate electronically powered Drive By Wire (DBW) throttles for this function.
Clutchless upshifting with integrated Closed Loop linear potentiometer control provides self-adjusting seamless drive interruption which allows safe and flawless upshifting in all weather conditions. The linear potentiometer feedback senses gearshift position at all times and provides over a 1000 feedback signals through the length of its travel (travel and size of the linear potentiometer can vary according to installation requirements). The device thus provides extremely accurate gearshifi control, Additional features of the device are smooth power restoration via ramped ignition/fuel restoration after drive interruption on upshifts, this can be separately programmed for each individual gearshift, it features two modes (wet and dry) activated via a dual mode switch which again allows individually differing ramped ignition!fuel restoration for each individual upshift in both modes, the reason for this is that often accelerative traction is reduced in wet or slippery conditions and longer ramped ignition/fuel restoration can be desirable. The device also features RPM recognition allowing an RPM ceiling to be set where the device will no longer interrupt the drive on upshifts and will not blip the throttle on downshifts to effect what is known as "downshift lock out", this has the benefit of protecting the engine and gearbox from accidental damage, these RPM ceilings are individually programmable for all gearshifts in Wet or Dry modes. Equally using RPM recognition the device can be set to any desirable lower RPM limit where up or downshifting functions are disabled, thus making low speedlRPM vehicle manoeuvrability easier.
The device is designed for use on racing and road sequentially geared vehicles for both on and off road use.
The invention will now be described by way of example and with reference to the two accompanying drawings in which: Figure I shows the complete Digital Linear Potentiometer Controlled Closed Loop Quickshifter/Throttle Blipper Device's linear potentiometer and its means of connecting with the vehicle's gearlever.
Fig 1.1 shows the spherical bearing for attaching to the vehicle's gearlever Fig 1.2 shows the spherical bearing for attaching to the mounting bracket Fig 1.3 shows the linear potentiometer outer housing Fig 1.4 shows the linear potentiometer shift rod which travels freely in and out of the outer housing (Fig 1.3) Fig 1.5 shows the electronic power and ground connections to the linear potentiometer Fig I.6 shows the waterproof cable connector which attaches directly to the gearshift control unit (GCU) Fig 1.7 shows the military specification cable which runs from the electronic power and ground connections to the linear potentiometer (Fig 1.5) to the waterproof connector (Fig 1.6)
DIGITAL LINEAR POTENTIOMETER CONTROLLED CLOSED LOOP
OUICKSHIFTERITHROTTLE BLIPPER DEVICE
Figure 2 shows the instafiation of the Digital Linear Potentiometer Controlled Closed Loop Quickshifter/Throttle Blipper Device Fig. 2.1 shows the linear potentiometer Fig 2.2 shows the spherical bearing for attaching to the mounting bracket Fig 2.3 shows the vehicle's gcarlcver Fig. 2.4 shows the vehicle's gearbox Fig 2.5 shows the gearshift control unit (CCU) Fog 2.6 shows the military specification cabling from the linear potentiometer to the gearshift control unit (GCU) Fig 2.7 shows the vehicle's 12 volt battery Fig 2.8 shows the positive connection from the battery to the (GCU) Fig 2.9 shows the negative connection from the battery to the (GCU) Fig 2.10 shows the wiring harness from the (GCU) to the wet/dry mode switch Fig 2.11 shows the wet/dry mode switch Fig 2.12 shows the (GCU) output to either the Telescopic Blipper, The CaHe Blipper OR to the drive by wire (DBW) throttle as it is compatible with all three throttle blipping methods Fig 2.13 shows thc vehicle's throttle bodics which may be either conventional or DBW
GB1216810.0A 2012-09-20 2012-09-20 Closed loop controlled quickshifter/throttle blipper device having sensor for gear selector position Withdrawn GB2508794A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1216810.0A GB2508794A (en) 2012-09-20 2012-09-20 Closed loop controlled quickshifter/throttle blipper device having sensor for gear selector position
PCT/GB2013/000389 WO2014044996A1 (en) 2012-09-20 2013-09-19 Digital linear potentiometer controlled closed loop quickshifter/throttle blipper device
GBGB1406474.5A GB201406474D0 (en) 2012-09-20 2014-04-10 Digital linear potentiometer controlled closed loop quickshifter/throttle blipper device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1216810.0A GB2508794A (en) 2012-09-20 2012-09-20 Closed loop controlled quickshifter/throttle blipper device having sensor for gear selector position

Publications (2)

Publication Number Publication Date
GB201216810D0 GB201216810D0 (en) 2012-11-07
GB2508794A true GB2508794A (en) 2014-06-18

Family

ID=47190342

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1216810.0A Withdrawn GB2508794A (en) 2012-09-20 2012-09-20 Closed loop controlled quickshifter/throttle blipper device having sensor for gear selector position
GBGB1406474.5A Ceased GB201406474D0 (en) 2012-09-20 2014-04-10 Digital linear potentiometer controlled closed loop quickshifter/throttle blipper device

Family Applications After (1)

Application Number Title Priority Date Filing Date
GBGB1406474.5A Ceased GB201406474D0 (en) 2012-09-20 2014-04-10 Digital linear potentiometer controlled closed loop quickshifter/throttle blipper device

Country Status (2)

Country Link
GB (2) GB2508794A (en)
WO (1) WO2014044996A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992013208A1 (en) * 1991-01-18 1992-08-06 Automotive Products Plc Clutch control system
WO1994007706A1 (en) * 1992-10-02 1994-04-14 Caterpillar Inc. Integrated engine and transmission control system
WO1996017739A1 (en) * 1994-12-07 1996-06-13 Caterpillar Inc. Integrated engine and transmission control system
EP1348590A2 (en) * 2002-03-27 2003-10-01 Caterpillar Inc. Engine and transmission control system
GB2386932A (en) * 2002-03-28 2003-10-01 Luk Lamellen & Kupplungsbau Method of controlling engine torque during a gear shift

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8506532U1 (en) * 1985-03-07 1985-05-30 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen MEASURING DEVICE WITH LINEAR POTENTIOMETER FOR USE IN UNDERGROUND MINING
GB2387629B (en) * 2002-02-06 2005-11-16 John Charlton Cluthchless down-changer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992013208A1 (en) * 1991-01-18 1992-08-06 Automotive Products Plc Clutch control system
WO1994007706A1 (en) * 1992-10-02 1994-04-14 Caterpillar Inc. Integrated engine and transmission control system
WO1996017739A1 (en) * 1994-12-07 1996-06-13 Caterpillar Inc. Integrated engine and transmission control system
EP1348590A2 (en) * 2002-03-27 2003-10-01 Caterpillar Inc. Engine and transmission control system
GB2386932A (en) * 2002-03-28 2003-10-01 Luk Lamellen & Kupplungsbau Method of controlling engine torque during a gear shift

Also Published As

Publication number Publication date
GB201216810D0 (en) 2012-11-07
GB201406474D0 (en) 2014-05-28
WO2014044996A1 (en) 2014-03-27

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