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what is their use?

2007-06-17 16:32:32 · 7 answers · asked by Anonymous in Cars & Transportation Safety

7 answers

Speed governors were originally designed to prevent commercial engines from being over-reved and damaged. The fact that they worked to limit the speed of any vehicle equipped with one is seen by some as a benefit (usually insurance companies) and others (drivers and some manufacturers) as a bad idea that got worse in practice.
One American trucking company had their tractors speed governed to no more than 55 mph. It was discovered that this extreme limiting of the engine was causing premature damage, so the manufacturer had them reset to factory specs or have the warranties on a few hundred tractors voided.
Then again NASCAR uses, or has used them, to good effect to limit the top speed of cars on certain tracks to reduce the number of fatal accidents.

2007-06-17 16:53:11 · answer #1 · answered by drgnrdr451 5 · 0 2

The purpose of any governor is to set an upper or lower limit on some activity. An automatic tranny governor shifts the tranny to another gear before engine or tranny RPM build up enough to damage them. A speed governor limits the top speed of the car so you can't go faster than the automaker feels is a safe speed. The car may have low speed rated tires or become unstable at higher speeds.

2007-06-17 16:47:10 · answer #2 · answered by monte 6 · 0 0

A speed governor is built into the engine to keep the RPMs at a safe level so you won't damage the engine. That is why when you try to get a car going faster than is safe for the RPM's the governor will kick in keeping the engine at a set speed. I hope I answered your question.

2007-06-17 16:41:10 · answer #3 · answered by setfree 3 · 0 0

Newer cars are speed limited by the engine computer. They are usually limited to a few mph less than the speed rating of the original tires or an even lower safe speed the manufacturer has determined. This is done for safety and to prevent lawsuits.

Many also have rpm limiters to prevent engine damage.

Fuel pump pressure or engine spark are cut off or restricted to accomplish this.

2007-06-17 16:43:14 · answer #4 · answered by beth 6 · 0 0

If you have ever driven a U-Haul truck and you could not go over 55mph that was the reason it had a speed governor on it. Good Luck and GOD Bless

2007-06-17 16:39:39 · answer #5 · answered by Anonymous · 0 0

It depends on what it is installed on. U-haul used to (they may still have) govereners on their trucks to keep them from going over 55 mph. They figured this was good so poeple didn't drive faster and have more accidnets in their trucks. Some cars have them to keep you from going over a certain spped and I think that may be a US law. Some small engines, golf carts for example, have them to keep from over-reving the motor and blowing them up.

2007-06-17 16:39:24 · answer #6 · answered by MIKEnJAPAN 5 · 0 0

our governer was an actor
he is that Arnold guy and he wants people to drive slower

2007-06-17 18:29:43 · answer #7 · answered by Anonymous · 3 0

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