How Does Electronic Ignition Work?
18 October 2003, 04:00 PM
#2
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advantages, car fires better. errrr, dont have to fage around changing or setting points.
errrrrrrrrrrr, more speed. errrrrrrrrrrrrrrr. thats it.
errrrrrrrrrrr, more speed. errrrrrrrrrrrrrrr. thats it.
18 October 2003, 06:16 PM
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It's just better, OK?
It's more accurate, there's less parts to wear out and you can run more power through it which gives you a better spark, it's all good
It's more accurate, there's less parts to wear out and you can run more power through it which gives you a better spark, it's all good
18 October 2003, 06:22 PM
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18 October 2003, 06:25 PM
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Points/coil ignition was near-universal in petrol engined road vehicles for many years and steadily improved in the details of design and construction. A careful owner carried out the necessary maintenance or had it done for him, thereby keeping his engine in a good state of tune. Not-so-careful owners ignored the engine so long as it still ran and tolerated the poor fuel economy, degraded performance and difficult starting caused by their neglect.
By the late 1960's, the first laws were passed directing vehicle manufacturers to clean up engine emissions. To meet the legal requirements, engineers needed an ignition system which could keep to factory specifications between services. This meant getting rid of the wear-prone mechanical contact breaker set. In its simplest form, electronic ignition retained the conventional distributor with its mechanical spark advance, merely replacing the points with a non-wearing electronic means of sensing crankshaft position and firing the spark. Later analogue spark control computers had more sensors to gather information on throttle position, throttle opening speed, engine speed, manifold vacuum and coolant temperature. The spark advance was set by the computer rather than by a centrifugal unit in the distributor. Carburettors could be jetted for leaner fuel-air mixtures which burned more completely with less polluting residue. Today, at the end of the twentieth century, quite ordinary family cars have electronic engine management systems which have done away with the familiar distributor and carburettor entirely and allow previously unheard of performance and fuel economy.
So, there!!!
BB
By the late 1960's, the first laws were passed directing vehicle manufacturers to clean up engine emissions. To meet the legal requirements, engineers needed an ignition system which could keep to factory specifications between services. This meant getting rid of the wear-prone mechanical contact breaker set. In its simplest form, electronic ignition retained the conventional distributor with its mechanical spark advance, merely replacing the points with a non-wearing electronic means of sensing crankshaft position and firing the spark. Later analogue spark control computers had more sensors to gather information on throttle position, throttle opening speed, engine speed, manifold vacuum and coolant temperature. The spark advance was set by the computer rather than by a centrifugal unit in the distributor. Carburettors could be jetted for leaner fuel-air mixtures which burned more completely with less polluting residue. Today, at the end of the twentieth century, quite ordinary family cars have electronic engine management systems which have done away with the familiar distributor and carburettor entirely and allow previously unheard of performance and fuel economy.
So, there!!!
BB
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