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  2. Engine knocking - Wikipedia

    en.wikipedia.org/wiki/Engine_knocking

    In spark-ignition internal combustion engines, knocking (also knock, detonation, spark knock, pinging or pinking) occurs when combustion of some of the air/fuel mixture in the cylinder does not result from propagation of the flame front ignited by the spark plug, but when one or more pockets of air/fuel mixture explode outside the envelope of the normal combustion front.

  3. Stall (engine) - Wikipedia

    en.wikipedia.org/wiki/Stall_(engine)

    A stall is the slowing or stopping of a process, and, in the case of an engine, refers to a sudden stopping of the engine turning, [1] usually brought about accidentally.. It is commonly applied to the phenomenon whereby an engine abruptly ceases operating and stops turning.

  4. Energy-efficient driving - Wikipedia

    en.wikipedia.org/wiki/Energy-efficient_driving

    The car will automatically switch between either battery powered mode or engine power with battery recharge. Electric cars, such as the Tesla Model S, may go up to 1,080 kilometres (670 mi) at 39 km/h (24 mph). [13] A truck restricted to 55 mph. Road capacity affects speed and therefore fuel efficiency as well.

  5. Automotive battery - Wikipedia

    en.wikipedia.org/wiki/Automotive_battery

    A typical 12 V, 40 Ah lead-acid car battery. An automotive battery, or car battery, is a rechargeable battery that is used to start a motor vehicle.. Its main purpose is to provide an electric current to the electric-powered starting motor, which in turn starts the chemically-powered internal combustion engine that actually propels the vehicle.

  6. Tappet - Wikipedia

    en.wikipedia.org/wiki/Tappet

    Loose set screws can cause catastrophic engine failure, which has led to fatal aircraft crashes. [9] On some OHV engines in the 1960s, such as the Ford Taunus V4 engine and Opel CIH engine, the tappet adjustment was done by setting the height of the rocker pivot point (rather than the typical method of a rocker-end adjustment screw). On the ...

  7. Kinetic energy recovery system - Wikipedia

    en.wikipedia.org/wiki/Kinetic_energy_recovery_system

    An up to 45% reduction in fuel consumption is claimed, corresponding to 2.9 L/100 km (81 mpg, 69 g CO 2 /km) on the NEDC cycle for a compact frame like Peugeot 208. The system is claimed to be much more affordable than competing electric and flywheel systems and was expected on road cars by 2016 but was abandoned in 2015.

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  9. Redline - Wikipedia

    en.wikipedia.org/wiki/Redline

    The actual term redline comes from the red bars that are displayed on tachometers in cars starting at the rpm that denotes the redline for the specific engine. Operating an engine in this area is known as redlining. Straying into this area usually does not mean instant engine failure, but may increase the chances of damaging the engine.