| 摘要 |
PURPOSE: An acceleration and deceleration detecting device and a safety driving system for a vehicle including the same are provided to detect acceleration and deceleration according to a vehicle driving state without the influence of electrical noise. CONSTITUTION: An acceleration and deceleration detecting device comprises an LVDT(100), a sensing module, and an inertial body(500). The LVDT measures the displacement of the inertial body changing a position according to the acceleration and the deceleration of a vehicle and transmits the displacement to the outside. The sensing module generates a sensing signal based on position change of the inertial body and transmits the sensing signal to the outside. A first permanent magnet(511) of the inertial body and a third permanent magnet(311) of the sensing module comprise same polarity. A second permanent magnet(513) of the inertial body and a fourth permanent magnet(313) of the sensing module comprise the same polarity so that a magnetic repulsive power is formed between the inertial body and the sensing module. The first permanent magnet and the second permanent magnet comprise the polarity which is different from each other. |
