Active Fuel Management
E774291
Active Fuel Management is General Motors' cylinder deactivation technology that improves fuel efficiency in V6 and V8 engines by temporarily shutting off select cylinders under light-load conditions.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Active Fuel Management canonical | 2 |
| Dynamic Fuel Management | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9044618 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Active Fuel Management Context triple: [EcoTec3 V8, technologyBrand, Active Fuel Management]
-
A.
Bosch D-Jetronic fuel injection
Bosch D-Jetronic fuel injection is an early electronic fuel injection system developed by Bosch that uses manifold pressure sensing and analog electronics to meter fuel delivery in various 1960s–1970s European cars.
-
B.
FADEC
FADEC (Full Authority Digital Engine Control) is an automated, computer-based system that manages and optimizes all aspects of an aircraft engine’s performance and operation.
-
C.
EcoBoost turbocharged gasoline engines
EcoBoost turbocharged gasoline engines are Ford’s family of fuel-efficient, performance-oriented gasoline powerplants that use turbocharging and direct injection to deliver strong power with reduced fuel consumption and emissions.
-
D.
The Reactive Engine
The Reactive Engine is an early conceptual work by Alan Kay that laid foundational ideas for personal computing and interactive, object-oriented systems, later influencing the Dynabook vision.
-
E.
Turbocharged Direct Injection
Turbocharged Direct Injection is a diesel engine technology developed by Volkswagen Group that combines turbocharging with direct fuel injection to improve power, efficiency, and emissions performance.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Active Fuel Management Target entity description: Active Fuel Management is General Motors' cylinder deactivation technology that improves fuel efficiency in V6 and V8 engines by temporarily shutting off select cylinders under light-load conditions.
-
A.
Bosch D-Jetronic fuel injection
Bosch D-Jetronic fuel injection is an early electronic fuel injection system developed by Bosch that uses manifold pressure sensing and analog electronics to meter fuel delivery in various 1960s–1970s European cars.
-
B.
FADEC
FADEC (Full Authority Digital Engine Control) is an automated, computer-based system that manages and optimizes all aspects of an aircraft engine’s performance and operation.
-
C.
EcoBoost turbocharged gasoline engines
EcoBoost turbocharged gasoline engines are Ford’s family of fuel-efficient, performance-oriented gasoline powerplants that use turbocharging and direct injection to deliver strong power with reduced fuel consumption and emissions.
-
D.
The Reactive Engine
The Reactive Engine is an early conceptual work by Alan Kay that laid foundational ideas for personal computing and interactive, object-oriented systems, later influencing the Dynabook vision.
-
E.
Turbocharged Direct Injection
Turbocharged Direct Injection is a diesel engine technology developed by Volkswagen Group that combines turbocharging with direct fuel injection to improve power, efficiency, and emissions performance.
- F. None of above. chosen
Statements (53)
| Predicate | Object |
|---|---|
| instanceOf |
cylinder deactivation technology
ⓘ
fuel-saving engine technology ⓘ |
| activationCondition |
light-load driving
ⓘ
low engine torque demand ⓘ steady highway cruising ⓘ |
| alsoKnownAs |
AFM
ⓘ
Displacement on Demand ⓘ |
| appliedTo | GM High Feature V6 engines ⓘ |
| appliesTo |
V6 engines
ⓘ
V8 engines ⓘ |
| benefit |
improved highway fuel economy
ⓘ
lower CO2 emissions compared to non-deactivation engines ⓘ reduced fuel use in part-throttle operation ⓘ |
| category |
automotive technology
ⓘ
internal combustion engine technology ⓘ |
| controlledBy | engine control unit ⓘ |
| controls |
exhaust valves
ⓘ
fuel injection to selected cylinders ⓘ intake valves ⓘ |
| deactivationCondition |
high engine load
ⓘ
strong acceleration ⓘ |
| developer | General Motors ⓘ |
| firstUsedIn |
5.3L V8 truck engines
ⓘ
Cadillac Escalade ⓘ Chevrolet Silverado ⓘ Chevrolet Tahoe ⓘ GM small-block V8 engines ⓘ GMC Sierra ⓘ GMC Yukon ⓘ Gen IV small-block V8 family ⓘ
linked to:
Chevrolet small-block V8
|
| introducedBy |
General Motors Powertrain Division
ⓘ
linked to:
GM Powertrain
|
| introducedIn | mid-2000s ⓘ |
| manufacturer | General Motors ⓘ |
| operatingPrinciple |
switches engine between full-cylinder and reduced-cylinder operation
ⓘ
temporarily deactivates select cylinders under light-load conditions ⓘ |
| purpose |
improve fuel efficiency
ⓘ
reduce exhaust emissions ⓘ reduce fuel consumption ⓘ |
| regionUsed |
Australia
ⓘ
North America ⓘ |
| successorTechnology |
Dynamic Fuel Management
ⓘ
linked to:
Active Fuel Management
|
| tradeOff |
increased valvetrain complexity
ⓘ
possible low-speed vibration or noise ⓘ potential lifter reliability issues ⓘ |
| typicalDeactivationMode |
6-cylinder to 3-cylinder operation
ⓘ
8-cylinder to 4-cylinder operation ⓘ |
| usedInBrand |
Buick
ⓘ
Cadillac ⓘ Chevrolet ⓘ GMC ⓘ Holden ⓘ |
| uses |
electro-hydraulic valve lifters
ⓘ
engine control module ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Active Fuel Management Description of subject: Active Fuel Management is General Motors' cylinder deactivation technology that improves fuel efficiency in V6 and V8 engines by temporarily shutting off select cylinders under light-load conditions.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Active Fuel Management