How Many Cylinders Are Active in a 12-Cylinder Engine During Normal Operation?
2 Answers
In a 12-cylinder engine, 6 cylinders are typically active during normal operation. Traditional Ignition: The working process of a mechanical ignition system involves the crankshaft driving the distributor shaft to rotate. The cam on the distributor shaft rotates, causing the primary contacts of the ignition coil to open and close, thereby generating high voltage. This ignition high voltage is then sequentially delivered to the spark plugs of each cylinder via the rotor on the distributor shaft, according to the engine's operational requirements. The spark plugs then emit an electric spark to ignite the gas in the combustion chamber. Electronic Ignition: Electronic ignition systems are entirely different from mechanical ignition systems. They include an electronic control unit for ignition, which contains a map (MAP) of ignition control curves required for various engine operating conditions. A series of sensors, such as the engine speed sensor, intake manifold vacuum sensor (engine load sensor), throttle position sensor, and crankshaft position sensor, are used to determine the engine's operating state.
Friend, I think driving a 12-cylinder car is really enjoyable. Normally, all 12 cylinders are definitely working to deliver that smooth power, especially during acceleration or uphill driving—you can feel the engine's full strength. Nowadays, many new cars feature cylinder deactivation technology, which automatically shuts off some cylinders during steady highway cruising to save fuel. The system is so intelligent that drivers hardly notice the change. But honestly, in most situations, all cylinders are still running. Poor maintenance can easily lead to misfiring, causing noticeable engine vibrations—just check the spark plugs or fuel system. 12-cylinder engines are usually found in luxury cars like Mercedes or Ferraris, delivering a deep and stable exhaust note. City driving does consume more fuel, but the power experience is absolutely worth it. Regular maintenance can prevent many issues and extend the car's lifespan.
