Description
COP stands for Coil-On-Plug electronic ignition. In COP automobile ignition systems there are no high-voltage cables, and the coil itself is located on top of the spark plug. In most cases the coils are placed on top of the cylinder head on the cylinder block. This is the best location because this way the coils do not get heated up by the exhaust gasses. In other words – the COP is the ignition system of the modern automobile.
The lack of high-voltage cables means significant increase in reliability of the ignition systems and a fewer leaks. Using a separate coil on top of each spark plug allows the interval between ignitions to be increased. This means that the residual magnetic field in the coil dissipates better, and because of that the coil works better in higher engine revolutions.
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