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Electromagnetism

1. A magnetic field created by passing a current through a conductor. 2. Faraday's second rule of electromagnetic induction states that whenever a current passes through a conductor a magnetic field is built up around that conductor that is directly proportional to the number of electrons (the amount of amperage) flowing in the conductor.

Electromotive Force (emf)

The force created by an area of negative electrical potential acting on an area of positive electrical potential measured in units of voltage.

Electron

1.An element of matter that surrounds the nucleus and helps determine the chemical and or electrical properties of an atom. 2. A negatively charged practical 1/1800 the mass of a proton orbiting around the nucleus in orbital paths called shells.

Electron Optics

Electronics that apply the behavior of moving electrons under the influence of electrostatic or electromagnetic forces to devices or equipment.

Electron Theory

The theory that electrons flows from an area of negative potential to an area of positive potential through a conductor.

Electronic

Pertaining to the control of systems of devices by the use of small electrical signals and various semiconductors, devices and circuits.

Electronic Air Suspension (EAS)

A suspension system having provisions to adjust to road and/or load conditions to ensure a comfortable ride. May also include automatic level control.

Electronic Brake Control Module (EBCM)

A system having a monitor at each wheel to sense conditions and feed an electrical impulse into an on-board computer to reduce sideways skidding during rapid braking action.

Electronic Climate Control (ECC)

A system used to regulate the temperature and humidity of a vehicle's cabin.

Electronic Computer Control System (ECCS)

A term used for electronic control assembly (ECA).

Electronic Control Assembly (ECA)

A device that receives signals, processes them, makes decisions, and gives commands. More commonly referred to as a computer.

Electronic Control Module (ECM)

An electronic device used to control some engine functions.

Electronic Control System (ECS)

An electronic device used to control certain electrical and engine operations.

Electronic Control Unit (ECU)

A digital computer that controls engine and transmission functions based on data that it receives from sensors, relative to engine r.p.m. and temperature, air temperature, intake-manifold vacuum, and throttle position.

Electronic Controlled Ignition (ECI)

A term that often apples to an electronic ignition (EI) system.

Electronic Controlled Transmission (ECT)

A transmission that has electronic sensors to monitor throttle position, engine speed, torque converter turbine speed, and other drive-train operations that effect shifting, leading to fuel economy.

Electronic Cycling-clutch Switch

An electronic switch that prevents the evaporator from freezing by signaling various electronic control devices when the evaporator reaches a predetermined low temperature.

Electronic Distributor-less Ignition System (EDIS)

An obsolete term for an ignition system that relies on a computer to time and route the electrical spark to the proper spark plug at the proper interval. Now known as electronic ignition (EI) system.

Electronic Engine Control (EEC)

A system that regulates an engine's electrical functions.

Electronic Feedback Carburetor (EFC)

A carburetor that controls the air/fuel mixture according to commands from the engine control computer.