VEHICLE MANEUVERING AIDS
First Claim
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1. A method of predicting a path of a trailer attached to a vehicle comprising the steps of:
- measuring a vehicle steering angle;
obtaining first and second views from at least two rearward-looking, vehicle-mounted video cameras;
determining a trailer view from the first and second camera views;
displaying the trailer view on a screen visible to a driver;
determining a hitch angle, θ
t, between the vehicle and trailer and using the trailer view;
calculating a predicted path of the trailer from the hitch angle and steering angle; and
displaying the predicted trailer path as an overlaid track on the trailer view.
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Abstract
A vehicle 1 towing a trailer 4 is fitted with three video cameras 5, 6, 7 fitted to the rear of the vehicle and on each door mirror. A view from any camera can be presented to the driver on a display 11. A predicted trailer path, calculated in a computing unit 10, is also presented to the driver on the display 11 as guide lines overlaid on the camera view. The computing unit 10 is also configured to calculate a hitch angle by tracking the position of a trailer-mounted marker in the camera view.
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Citations
20 Claims
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1. A method of predicting a path of a trailer attached to a vehicle comprising the steps of:
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measuring a vehicle steering angle; obtaining first and second views from at least two rearward-looking, vehicle-mounted video cameras; determining a trailer view from the first and second camera views; displaying the trailer view on a screen visible to a driver; determining a hitch angle, θ
t, between the vehicle and trailer and using the trailer view;calculating a predicted path of the trailer from the hitch angle and steering angle; and displaying the predicted trailer path as an overlaid track on the trailer view. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification