WARNING ALARM APPARATUS AND METHOD FOR STEERING WHEEL

摘要

A danger warning device in a vehicle steering wheel according to the present invention comprises: one or more piezoelectric transducers on a steering wheel; a current supply part; a sensor part for sensing dangerous factors using a sensor mounted on the steering wheel or a vehicle; and a control part which determines whether a sensor value sensed in the sensor part is in a danger warning range to control the driving of the current supply part in accordance with the sensor value. The control part supplies a driving current to the piezoelectric transducers by driving the current supply part when the sensor value is in the danger warning range. The piezoelectric transducers vibrate the steering wheel by converting the driving current supplied from the current supply part into vibration.