Horn for vehicle with volume control system and horn-operating pushbutton - provides continuous min. excitation current supply and dependent on control increased excitation current results.

摘要

A current control circuit(2) controls the excitation, dependent on a signal from the signal transmitter(5), which indirectly or directly represents a ruling noise level of the vehicle. The signal transmitter can be a current generator for the vehicle, and its output signal is supplied to the current control circuit to carry out the control. The signal transmitter can be operated inductively or optically in conjunction with a pulse transmitter, arranged at a rotating motor or vehicle part. The signal transmitter alternatively can be a body sound sensor, which is arranged at the engine or the vehicle. ADVANTAGE - With simple construction, horn volume is continuously controlled in relation to acceptable noise level.