DICTIONARY OF AUTOMOTIVE TERMS - "Ec"

EC

Acronym for Engine Control

ECA

Acronym for Electronic control assembly

ECC

Acronym for Electronic climate control

Eccentric

1. Two circles, one within the other, neither sharing the same center, i.e., they are off-center.
2. A protrusion on a shaft that rubs against or is connected to another part, such as a cam on a Camshaft.
3. A part transmitting an eccentric drive, such as a disc with a provision for a drive from its outer part, or an eccentric shaft
4. Off center. A brake drum defect caused by unequal wear, drum distortion, or both

Eccentric bolt

A bolt with centers of head and body on different axis so that one is off-center in relation to the other.

Eccentric drive

A drive from a point not on the axis of the driving shaft, e.g., from the outer part of a disc, so that a reciprocating or up and down motion is transmitted; used in pumps or for a camshaft drive

Eccentric journals

These are used to attach the connecting rods to the crankshaft (also called metal shafts)

Eccentric rotor pump

Rotor-type pump

Eccentric shaft

A shaft transmitting eccentric motion

ECCS

Acronym for electronic concentrated control system

ECE test cycle

A 13 minute, three-part test of automotive emissions for compliance with emission standards, adopted by most European countries, simulating urban driving conditions, i.e., involving relatively long idling periods and speeds below 35 mph, emission characteristics at cruising speeds not being considered

Echelon parking

A British term for Angle parking

ECI

1. Acronym for electronic control injection
2. Acronym for electronically controlled injection
3. Acronym for Extended Compressor at Idle

ECIT

Acronym for electronic control ignition timing

ECL

Acronym for Engine Coolant Level

Eclat

A 2+2 Coupe produced by Lotus from 1975 to 1982. This vehicle was the basis for the current Lotus Excel.

E-clip

E-clip

A fastener that is secured to grooves in a shaft.

ECM

1. Acronym for Electronic Control Module which is the master Computer responsible for interpreting electrical signals sent by engine Sensors and for activating automated engine Components and processes accordingly in order to produce optimum performance.
2. Acronym for Engine Control Module

Ecological damage

Damage to the environment, usually in the form of pollution, such as that caused by vehicle emissions

Ecologically harmful

Damaging to the environment automotive exhaust gases are ecologically harmful

Ecology

Science of life balance on earth.

Economical

The determination of how much money or fuel is required to cover a particular distance. Good economy involves driving at a steady rate, avoiding rapid starts and stops, driving in the highest possible Gear, avoiding using power- robbing components (e.g., air conditioning), proper tire inflation, etc.

Economic Cooperation

See
Asia Pacific Economic Cooperation

Economizer

A device for making a vehicle use less fuel, either by regulating the flow of fuel, or by admitting extra air to the air/fuel mixture -- especially when cruising

Economizer valve

A fuel flow control device within the Carburetor.

Economy

The ratio between a product or service and its value.

Also See
Corporate Average Fuel Economy
Epa fuel economy
Fuel economy
Tuned for economy

Economy device

See
Economizer

Economy gear

High Gear designed for economical cruising often better than 11 ratio like an overdrive.

Economy jet

An additional jet in a carburettor admitting extra air to the air/fuel mixture—especially when cruising

Economy ratio

An Overdrive Gear ratio better then 11 for economical cruising

ECS

1. Acronym for electronically controlled suspension.
2. Acronym for Evaporation control system
3. Acronym for emission control system

ECT

1. Acronym for Engine coolant temperature sensor
2. Acronym for electronically controlled transmission

ECU

Acronym for Electronic Control Unit