Back warning buzzer system for vehicle having trailer mounted thereto
First Claim
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1. A back warning buzzer system for an automotive vehicle having a trailer mounted thereto, comprising:
- (a) a control unit;
(b) a plurality of sensors equidistantly mounted to the back bumper of the vehicle; and
(c) a buzzer operable by the control unit in response to signals from the sensors.
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Abstract
Disclosed herein is a back warning buzzer system for an automotive vehicle having a trailer mounted thereto, comprising: (a) a control unit; (b) a plurality of sensors equidistantly mounted to the back bumper of the vehicle; and (c) a buzzer operable by the control unit in response to signals from the sensors. Also disclosed is a back warning method therefrom.
20 Citations
12 Claims
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1. A back warning buzzer system for an automotive vehicle having a trailer mounted thereto, comprising:
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(a) a control unit; (b) a plurality of sensors equidistantly mounted to the back bumper of the vehicle; and (c) a buzzer operable by the control unit in response to signals from the sensors. - View Dependent Claims (2, 3, 4)
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5. A back warning buzzer system for an automotive vehicle having a trailer mounted thereto, comprising:
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(a) a control unit; (b) a vehicle speed sensor connected to an input side of the control unit; (c) a transmission position sensor connected to an input side of the control unit; (d) a plurality of supersonic sensors equidistantly mounted at the back bumper of the vehicle in such a fashion as to be connected to an input side of the control unit by means of a multiplexer; and (e) a buzzer connected to an output side of the control unit and adapted to be turned on/off in response to detection signals generated from the vehicle speed sensor and the supersonic sensors.
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6. A back warning method for an automotive vehicle having a trailer mounted thereto, comprising the steps of:
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(a) starting vehicle'"'"'s engine; (b) when at least two sensors selected from a plurality of sensors equidistantly mounted to the back bumper of the vehicle detect a rear object with the transmission in “
P”
or “
N”
position and a distance between the vehicle and the rear object is within a predetermined range, allowing a control unit to determine that the trailer is towed behind the vehicle so as to control the selected sensors to be turned on and a buzzer to be turned off after the lapse of three seconds;(c) when the selected sensors detect the rear object with the transmission in “
P”
or “
N”
position and the distance between the vehicle and the rear object is beyond the predetermined range, allowing the control unit to determine that the rear object is a general obstacle so as to control all of the plurality of sensors to be turned on and the buzzer to be turned on;(d) when the vehicle is stopped with the transmission in “
R”
position for a long time period, allowing the control unit to control the selected sensors to be turned on and the buzzer to be turned off; and(e) when the vehicle is operated during the stop of the vehicle with the transmission in “
R”
position for a long time period, allowing the control unit to control all of the plurality of sensors to be turned on and the buzzer to be turned on. - View Dependent Claims (7, 8, 9, 10, 11)
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12. The method of claim 14, wherein the predetermined range is less than 48 cm.
Specification