发表于 2005-05-12 12:57 IP属地：未知
国外的说法：
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Two foot panic
When driving a manual car and emergency braking is considered the question arises about what you might do with the clutch pedal. Some have suggested that leaving the clutch alone is a good idea until just before you stop. They are wrong.
In an emergency hit the brake and clutch both at once in a "two foot panic". This is important for two basic reasons:
Once you have stopped there might well be danger all around you. There might even be a large lorry caught up in the same problem steaming towards you with its tyres on fire from braking. In circumstances such as these you do not want to be restarting the engine. The idea is to have maximum control and maximum options. If you hadn't declutched then you might have stalled the engine even at 60 mph by locking the wheels. A stalled engine might also affect power steering and servo assisted brakes. (Most servo assisted brakes have a vacuum reservoir which will provide assistance for several brake applications after the engine has stopped.)
Declutching prevents the engine from fighting the brakes just when you need maximum braking effort.
"Two foot panic" is taught on skid pans.
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