CA2031021A1 - Shuttle shift transmissions - Google Patents

Shuttle shift transmissions

Info

Publication number
CA2031021A1
CA2031021A1 CA 2031021 CA2031021A CA2031021A1 CA 2031021 A1 CA2031021 A1 CA 2031021A1 CA 2031021 CA2031021 CA 2031021 CA 2031021 A CA2031021 A CA 2031021A CA 2031021 A1 CA2031021 A1 CA 2031021A1
Authority
CA
Canada
Prior art keywords
programmed
transmission
microprocessor
reverse
gearshift lever
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.)
Granted
Application number
CA 2031021
Other languages
French (fr)
Other versions
CA2031021C (en
Inventor
Garth H. Bulgrien
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.)
New Holland North America Inc
Original Assignee
Ford New Holland Inc
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 Ford New Holland Inc filed Critical Ford New Holland Inc
Priority to CA002263785A priority Critical patent/CA2263785C/en
Priority to CA002263788A priority patent/CA2263788C/en
Priority to CA002263787A priority patent/CA2263787C/en
Publication of CA2031021A1 publication Critical patent/CA2031021A1/en
Application granted granted Critical
Publication of CA2031021C publication Critical patent/CA2031021C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • B60W30/18036—Reversing
    • B60W30/18045—Rocking, i.e. fast change between forward and reverse

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)

Abstract

A microprocessor controlling a shuttle shift transmission may be programmed while the gearshift lever is in neutral to preselect a forward and reverse gear into which the transmission is shifted when the gearshift lever is moved to a forward or reverse position. The microprocessor may also be programmed so that, in shifting between forward and reverse, the forward and reverse gears selected differ by a pre-programmed amount. The microprocessor may be programmed to control vehicle deceleration by selecting gears in the transmission so that the transmission and/or the vehicle engine become a load for decelerating the vehicle. In a diagnostic mode, the microprocessor executes a routine to develop a clutch calibration value which may later be used to insure uniformity of clutch operation in different vehicles, or in the same vehicle over a period of time. The normal speed ratio matching which normally takes place when shifting gears may be manually overridden by operator manipulation of the gearshift lever. The override may either terminate speed ratio matching for a particular shift, or the override may be effective for a fixed interval of time.
CA 2031021 1989-12-01 1990-11-28 Shuttle shift transmissions Expired - Lifetime CA2031021C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002263785A CA2263785C (en) 1989-12-01 1990-11-28 Improvements in shuttle shift transmissions
CA002263788A CA2263788C (en) 1989-12-01 1990-11-28 Improvements in shuttle shift transmissions
CA002263787A CA2263787C (en) 1989-12-01 1990-11-28 Improvements in shuttle shift transmissions

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US44431289A 1989-12-01 1989-12-01
US444,312 1989-12-01

Related Child Applications (3)

Application Number Title Priority Date Filing Date
CA002263787A Division CA2263787C (en) 1989-12-01 1990-11-28 Improvements in shuttle shift transmissions
CA002263788A Division CA2263788C (en) 1989-12-01 1990-11-28 Improvements in shuttle shift transmissions
CA002263785A Division CA2263785C (en) 1989-12-01 1990-11-28 Improvements in shuttle shift transmissions

Publications (2)

Publication Number Publication Date
CA2031021A1 true CA2031021A1 (en) 1991-06-02
CA2031021C CA2031021C (en) 1999-09-28

Family

ID=23764382

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2031021 Expired - Lifetime CA2031021C (en) 1989-12-01 1990-11-28 Shuttle shift transmissions

Country Status (1)

Country Link
CA (1) CA2031021C (en)

Also Published As

Publication number Publication date
CA2031021C (en) 1999-09-28

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry