Turn recovery human machine interface for trailer backup assist
First Claim
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1. A backup assist system for a vehicle reversing a trailer coupled therewith, comprising:
- an input receiving a backing command corresponding with a desired non-zero vehicle-trailer curvature and outputting a control signal based on the desired vehicle-trailer curvature;
a controller;
receiving the control signal; and
generating a vehicle steering command for achieving the desired vehicle-trailer curvature and calculating a zero-angle recovery distance from the desired vehicle-trailer curvature based on the control signal in parallel with generating the vehicle steering command; and
an interface outputting an indication of the zero-angle recovery distance.
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Abstract
A backup assist system for a vehicle reversing a trailer includes an input receiving a backing command and outputting a control signal based thereon. A controller receives the control signal, generates a vehicle steering command based on the control signal, and determines a length of a recovery period based on the control signal. The system also includes an interface outputting an indication of the length of the recovery period.
460 Citations
20 Claims
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1. A backup assist system for a vehicle reversing a trailer coupled therewith, comprising:
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an input receiving a backing command corresponding with a desired non-zero vehicle-trailer curvature and outputting a control signal based on the desired vehicle-trailer curvature; a controller; receiving the control signal; and generating a vehicle steering command for achieving the desired vehicle-trailer curvature and calculating a zero-angle recovery distance from the desired vehicle-trailer curvature based on the control signal in parallel with generating the vehicle steering command; and an interface outputting an indication of the zero-angle recovery distance. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A vehicle, comprising:
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a steering system; an input receiving a backing command for reversing a trailer coupled with a vehicle, the backing command including both a direction and a non-zero amplitude; a controller calculating a zero-angle recovery distance based on the amplitude of the backing command in-parallel with generating a steering command, and outputting the steering command to the steering system to cause an angle between the vehicle and the trailer to deviate from zero; and an interface outputting an indication of the zero-angle recovery distance. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for assisting in reversing a vehicle-trailer combination, comprising:
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receiving a control signal from an input corresponding to a directional backing command; generating a steering command based on the directional backing command; outputting the steering command to a vehicle steering system to cause an angle between the vehicle and the trailer at a coupling point therebetween to deviate from zero; in parallel with outputting the steering command, calculating a length of a zero-angle recovery distance based on the amplitude of the directional backing command; and outputting an indication of the zero-angle recovery distance via a vehicle interface. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification