| 摘要 |
<p>The device includes speed sensor means (1) which provide a signal (A) indicative of the speed of rotation of the engine to a first input (7a) of a comparison circuit (7). A reference signal is fed to a second input (7b) of the comparison circuit (7). The output of the comparison circuit (7) is connected to a first input (12b) of an enabling logic circuit (12), having a second input (12a) connected to means (15) for detecting the position of the accelerator pedal. The enabling logic circuit (12) is connected to shut-off means (13) disposed in the fuel feed pipe of the engine. A processing circuit (6) has its input connected to the speed sensor means (1), and its output connected to the second input (7b) of the comparison circuit (7). This processing circuit (6) generates an electrical signal having an amplitude which increases with time according to a predetermined law, when the signal provided by the speed sensor means (1) falls at a rate greater that a predetermined rate.</p> |
