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gptkbp:instance_of
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gptkb:automatic_transmission
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gptkbp:application
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luxury cars
mid-size cars
full-size cars
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|
gptkbp:compatibility
|
V8 engines
inline-6 engines
|
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gptkbp:control_system
|
hydraulic actuators
|
|
gptkbp:cooling_system
|
external cooler
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gptkbp:dam_type
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gptkb:Dexron
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gptkbp:design
|
hydraulic control system
|
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gptkbp:development
|
developed by GM engineers
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|
gptkbp:drive_type
|
3.08:1
|
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gptkbp:economic_impact
|
significant in 1960s
|
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gptkbp:features
|
variable pitch torque converter
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gptkbp:first_introduced
|
1956 Buick Centurion
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gptkbp:fuel_economy
|
improved over manual transmissions
|
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gptkbp:gearbox
|
1.00:1
planetary gear system
2.48:1
1.48:1
|
|
gptkbp:historical_significance
|
first mass-produced automatic transmission
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Hydra-Matic 3
|
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gptkbp:introduced
|
gptkb:1956
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gptkbp:invention
|
US Patent 2,743,000
|
|
gptkbp:legacy
|
influenced future automatic transmissions
|
|
gptkbp:maintenance
|
requires regular fluid changes
|
|
gptkbp:manufacturer
|
gptkb:General_Motors
|
|
gptkbp:market_segment
|
American automotive market
|
|
gptkbp:mechanism_of_action
|
PRNDL
|
|
gptkbp:performance
|
smooth shifting
|
|
gptkbp:production_years
|
gptkb:1964
1956-1964
|
|
gptkbp:reliability
|
high
|
|
gptkbp:replaced_by
|
gptkb:Turbo-Hydramatic_400
|
|
gptkbp:shift_quality
|
adaptive shifting
|
|
gptkbp:shift_timing
|
electronically controlled
|
|
gptkbp:successor
|
gptkb:Turbo-Hydramatic
|
|
gptkbp:torque
|
yes
up to 400 lb-ft
up to 300 lb-ft
|
|
gptkbp:transmission
|
electromechanical
Dexron II
|
|
gptkbp:type
|
3-speed transmission
|
|
gptkbp:used_in
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gptkb:Oldsmobile
gptkb:Pontiac
gptkb:Buick
|
|
gptkbp:user_feedback
|
generally positive
|
|
gptkbp:user_manual
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available for mechanics
|
|
gptkbp:weight
|
approximately 150 lbs
|
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gptkbp:bfsParent
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gptkb:Hydra-Matic_transmission
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gptkbp:bfsLayer
|
6
|