E
- Written by {ga=Andrew}
- Category: E
The exhaust stroke is the fourth stroke in the four-stroke cycle. The piston rises and the exhaust valve(s) open, allowing the waste gas from the combustion process to exit through the exhaust system.
- Category: E
The 'elk test' is an extreme test of a car's handling.
In the elk test, sometimes known as the moose test, the driver swerves to avoid an obstacle, then steers back onto the original course. The test is intended to mimic the action of a driver faced with an elk (or moose) wandering onto the road unexpectedly.
The elk test was made famous in 1997 when Swedish journalist Robert Collin tested the Mercedes-Benz A-class and found it was prone to roll over in such a manoeuvre – prompting an expensive and embarrassing recall of early A-class cars by Mercedes.
- Written by {ga=staff}
- Category: E
The engine management system is the computer which controls the fuel injection and ignition systems.
In modern cars the engine management system also often controls other functions such as variable valve timing and exhaust bypass valves.
The engine management cmputer is sometimes referred to as the ECU or electronic control unit.
- Written by {ga=Andrew}
- Category: E
An Extended Range Electric Vehicle or EREV is an electrically-powered vehicle which is provided with a means of recharging its batteries when they become depleted.
This charging system can be powered by a conventional petrol or diesel engine, a gas turbine or another fuel-burning engine.
- Written by {ga=staff}
- Category: E
Emissions, also known as exhaust emissions, are the chemical byproducts of power generation by an engine which emerge from the exhaust system.
Though public policy tends to concentrate almost entirely on CO2 emissions, petrol and diesel fuelled internal combustion engines produce many different exhaust emissions. The main ones are:
- Carbon dioxide (CO2)
- Carbon monoxide (CO)
- Oxides of nitrogen (NOx)
- Sulphur dioxide (SO2)
- Unburnt hydrocarbons (HC)
- Ozone (O3)
- Carbon particulates
