Abstract: An apparatus for automatically adjusting the angle of a rotatable side view mirror of a vehicle having a trailer coupled thereto includes transducers attached to the vehicle for transmitting signals toward the trailer and for receiving signals reflected by the trailer. A control unit includes memory for storing dimensional information and a control circuit for generating a mirror control signal for controlling rotation of the rotatable side view mirror. The control circuit is operative to control at least one of the transducers to determine an angle between the vehicle and the trailer based on a time required for signals transmitted by the respective controlled at least one transducer to be reflected back to the respective at least one controlled transducer. The control circuit generates the mirror control signal based on the determined angle.

Abstract: An apparatus for automatically adjusting the angle of a rotatable side view mirror of a vehicle having a trailer coupled thereto includes transducers attached to the vehicle for transmitting signals toward the trailer and for receiving signals reflected by the trailer. A control unit includes memory for storing dimensional information and a control circuit for generating a mirror control signal for controlling rotation of the rotatable side view mirror. The control circuit is operative to control at least one of the transducers to determine an angle between the vehicle and the trailer based on a time required for signals transmitted by the respective controlled at least one transducer to be reflected back to the respective at least one controlled transducer. The control circuit generates the mirror control signal based on the determined angle.

Abstract: An apparatus for automatically adjusting the angle of a side view mirror of a vehicle having a trailer coupled thereto is provided. The apparatus includes a control unit and at least one transducer coupled to the vehicle for transducing signals from the control unit to a signal directed toward the trailer and which is reflected back to the at least one transducer. The transducers are used to determine an angle between the vehicle and the trailer. A microchip then generates an electrical signal related to the angle between the vehicle and the trailer. A transmitter transmits the electrical signal using radio waves to a receiver unit disposed near the side view mirror. The receiver unit includes a receiving antenna for receiving the signal transmitted from the transmitter. A drive unit is electrically coupled to said receiver unit for rotating and adjusting the angle of the side view mirror in accordance with the electrical signal.