초록 ▼

A multiple channel braking notification system includes an accelerator pedal and an accelerator pedal actuator for applying a variable force to the accelerator pedal. A forward detection apparatus is used to detect the relative distance and speed to a target vehicle. A controller monitors the relati

A multiple channel braking notification system includes an accelerator pedal and an accelerator pedal actuator for applying a variable force to the accelerator pedal. A forward detection apparatus is used to detect the relative distance and speed to a target vehicle. A controller monitors the relative distance and speed to notify the driver to slow down. Driver notification is accomplished by applying a predetermined amount of variable force to the accelerator pedal. The amount of force applied is proportional to the level of braking required.

대표청구항 ▼

A multiple channel braking notification system includes an accelerator pedal and an accelerator pedal actuator for applying a variable force to the accelerator pedal. A forward detection apparatus is used to detect the relative distance and speed to a target vehicle. A controller monitors the relati

A multiple channel braking notification system includes an accelerator pedal and an accelerator pedal actuator for applying a variable force to the accelerator pedal. A forward detection apparatus is used to detect the relative distance and speed to a target vehicle. A controller monitors the relative distance and speed to notify the driver to slow down. Driver notification is accomplished by applying a predetermined amount of variable force to the accelerator pedal. The amount of force applied is proportional to the level of braking required. iezoelectric resonant transducers, arranged in spatial relationship to each other in order to control the direction and shape of the radiation pattern; one or more amplifier means with one or more coupling transformer means to drive the transducers; an electronic signal means to provide an input signal to the amplifier means; with the electronic signal means further comprising one or more lower frequency pulse oscillators; a logical "OR" circuit means, with inputs from each of the lower frequency pulse oscillators; a resonant frequency pulse oscillator means, with a higher frequency near or at the resonant frequency of the transducer, and with a pulse width optimized to produce the maximum acoustic output from the transducer; a logical "AND" circuit means with a first input connected to the output of the logical "OR" circuit means, a second input connected to the output of the resonant frequency pulse oscillator, and with an output connected to the input of each of the amplifiers. 8. The sounder device of claim 7 wherein each said transducer is a common loudspeaker or similar electromagnetic acoustic transducer. 9. A sounder device comprising Two or more piezoelectric resonant transducers, arranged in a spatial relationship to each other in order to control the direction and shape of the radiation pattern; an equal number of amplifier means with a similar number of coupling transformer means to drive the transducers; a number of signal delay means, which may have preset or adjustable delay times up to the period corresponding to the resonant frequency of the transducers, said delay means placed in series with the signals going to each of the said amplifiers; an electronic signal means to provide an input signal to the delay means, with the electronic signal means further comprising one or more lower frequency pulse oscillators; a logical "OR" circuit means, with inputs from each of the lower frequency pulse oscillators; a resonant frequency pulse oscillator means, with a higher frequency near or at the resonant frequency of the transducer, and with a pulse width optimized to produce the maximum acoustic output from the transducer; a logical "AND" circuit means with a first input connected to the output of the logical "OR" circuit means, a second input connected to the output of the resonant frequency pulse oscillator, and with an output connected to the input of each of the amplifiers. 10. The sounder device of claim 9 wherein the delay times of the said delay circuit means can be varied or adjusted electronically in order to actively control the acoustic radiation direction. 11. The sounder device of claim 9 or 10 wherein each said transducer is a common loudspeaker or similar electromagnetic acoustic transducer.