초록 ▼

A trailer stability monitor for tractor-trailer vehicles including a motion sensor and signal responsive r.f. transmitter responsive thereto mounted on the trailer and a r.f. signal receiver coupled to alarm means and mounted on the tractor, preferably in the cab thereof, for receiving the signal fr

A trailer stability monitor for tractor-trailer vehicles including a motion sensor and signal responsive r.f. transmitter responsive thereto mounted on the trailer and a r.f. signal receiver coupled to alarm means and mounted on the tractor, preferably in the cab thereof, for receiving the signal from said transmitter and causing an alarm to warn the operator of the tractor-trailer of conditions conducive to rollover to permit remedial measures to be undertaken to avoid such incident. The motion sensor includes a pair of angular mounted normally open mercury switches arranged to detect lateral forces to the right or left to a degree conducive to rollover. A vertically oriented normally closed mercury inertia switch is connected in series with the pair of angular mounted parallel connected switches to momentarily disable the circuit to prevent spurious signals from bumps. The switch array is connected in series with a battery and a lower power r.f. oscillator transmitter which transmits a coded low power signal when the switch array is closed. The receiver/alarm includes an r.f. receiver which can detect the signal from the transmitter and activate an alarm of sufficient power to alert the operator. The signal can be transmitted air to air via an antenna or by superimposing the signal on a pair of the existing electrical lines of the tractor-trailer, using the lines as an r.f. line carrier.

대표청구항 ▼

A trailer stability monitor for tractor-trailer vehicles comprising a lateral force sensor means mounted on the trailer, r.f. transmitter means coupled to said lateral force sensor means and responsible thereto for transmitting a signal when highway travel associated lateral forces acting on said tr

A trailer stability monitor for tractor-trailer vehicles comprising a lateral force sensor means mounted on the trailer, r.f. transmitter means coupled to said lateral force sensor means and responsible thereto for transmitting a signal when highway travel associated lateral forces acting on said trailer of a predetermined degree conducive to a rollover are sensed, r.f. receiver means mounted on said tractor for receiving said signal, means directing said signal to said r.f. receiver and alarm means mounted on said tractor and capable of being activated by said r.f. receiver, upon receipt of said signal thereby.