Vehicle driver assistance system and method
First Claim
1. A driver assistance system for a vehicle, comprising:
- a first sensor configured to sense the speed of the vehicle;
a second sensor configured to sense a second vehicle traveling ahead of the vehicle;
a third sensor configured to determine the speed of the second vehicle; and
an electronic controller suitably programmed to;
(i) trigger autonomous braking of the vehicle based on preselected data for triggering braking;
(ii) determine the operational condition of the second sensor; and
(iii) terminate autonomous braking of the vehicle when;
(a) the second sensor is operational but is not sensing the second vehicle or any other vehicle ahead of the vehicle; and
(b) the speed of the vehicle is less than the most recently determined speed of the second vehicle; and
(iv) continue autonomous braking of the vehicle when the second sensor is nonoperational.
3 Assignments
0 Petitions
Accused Products
Abstract
A driver assistance system includes a sensor for sensing the speed of a first vehicle equipped with the system, a sensor for detecting a vehicle traveling ahead, a sensor for determining the speed of the vehicle ahead, at least one driving-data sensor for sensing driving data characteristics, and an electronic controller programmed to trigger autonomous braking of the first vehicle when predetermined brake-trigger driving data exist, and to end the autonomous braking when predetermined driving data for terminating braking exist. In effecting termination of autonomous braking, the electronic controller is programmed to determine whether the sensor for detecting vehicles ahead is transmitting signals (i.e., is operational) but is not detecting any vehicle traveling ahead, and, if the sensor is operational and no vehicle traveling ahead is detected, to terminate autonomous braking when the speed of the first vehicle is less than the most recently determined speed of the vehicle ahead.
8 Citations
15 Claims
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1. A driver assistance system for a vehicle, comprising:
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a first sensor configured to sense the speed of the vehicle; a second sensor configured to sense a second vehicle traveling ahead of the vehicle; a third sensor configured to determine the speed of the second vehicle; and an electronic controller suitably programmed to; (i) trigger autonomous braking of the vehicle based on preselected data for triggering braking; (ii) determine the operational condition of the second sensor; and (iii) terminate autonomous braking of the vehicle when; (a) the second sensor is operational but is not sensing the second vehicle or any other vehicle ahead of the vehicle; and (b) the speed of the vehicle is less than the most recently determined speed of the second vehicle; and (iv) continue autonomous braking of the vehicle when the second sensor is nonoperational. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. In a vehicle including a driver assistance system having a first sensor configured to sense the speed of the vehicle, a second sensor configured to sense a second vehicle traveling ahead of the vehicle, a third sensor configured to determine the speed of the second vehicle, and an electronic controller suitably programmed to trigger autonomous braking of the vehicle based on preselected data for triggering braking, a method for avoiding premature termination of autonomous braking, the method comprising the steps of:
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(i) determining the operational condition of the second sensor; (ii) terminating autonomous braking of the vehicle when; (a) the second sensor is operational but is not sensing the second vehicle or any other vehicle ahead of the vehicle; and (b) the speed of the vehicle is less than the most recently determined speed of the second vehicle; and (iii) continuing autonomous braking of the vehicle when the second sensor is nonoperational. - View Dependent Claims (14, 15)
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Specification