Auto-braking system for vehicle and method for auto-braking vehicle
First Claim
1. An auto-braking system for a vehicle, comprising:
- a braking device that slows the vehicle;
a receiver that receives messages each containing traffic light state information from a traffic light ahead of the vehicle over Vehicle-to-Infrastructure communication;
a sensor that optically captures an image of the traffic light after the receiver received the messages; and
a controller that controls operation of the braking device, whereinthe controller includes;
a determining portion that determines whether the vehicle will violate a red signal of the traffic light, if the vehicle continues to travel under current traveling conditions, based on the traffic light state information when the receiver receives the messages;
a verifying portion that verifies the traffic light state information is valid by comparing the traffic light state information with the image of the traffic light captured by the sensor when the sensor captures the image of the traffic light; and
an executing portion that executes;
(i) a first braking control to slow the vehicle at a first deceleration rate by controlling the braking device when the determining portion determines that the vehicle will violate a red signal; and
(ii), after the first braking control was executed, a second braking control to slow the vehicle at a second deceleration rate to stop at a specified position by controlling the braking device when the verifying portion verifies that the traffic light state information is valid.
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Accused Products
Abstract
The present disclosure provides an auto-braking system which includes a braking device, a receiver, and a controller. The controller includes a determining portion, a verifying portion and an executing portion. The determining portion determines whether a vehicle will violate a red signal of the traffic light based on the traffic light state information. The verifying portion verifies the traffic light state information is valid by comparing the traffic light state information with the image of the traffic light captured by the sensor. The executing portion executes a first braking control to slow the vehicle at a first deceleration rate when the determining portion determines that the vehicle will violate a red signal. The executing portion executes a second braking control to slow the vehicle at a second deceleration rate to stop at a specified position when the verifying portion verifies that the traffic light state information is valid.
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Citations
16 Claims
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1. An auto-braking system for a vehicle, comprising:
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a braking device that slows the vehicle; a receiver that receives messages each containing traffic light state information from a traffic light ahead of the vehicle over Vehicle-to-Infrastructure communication; a sensor that optically captures an image of the traffic light after the receiver received the messages; and a controller that controls operation of the braking device, wherein the controller includes; a determining portion that determines whether the vehicle will violate a red signal of the traffic light, if the vehicle continues to travel under current traveling conditions, based on the traffic light state information when the receiver receives the messages; a verifying portion that verifies the traffic light state information is valid by comparing the traffic light state information with the image of the traffic light captured by the sensor when the sensor captures the image of the traffic light; and an executing portion that executes; (i) a first braking control to slow the vehicle at a first deceleration rate by controlling the braking device when the determining portion determines that the vehicle will violate a red signal; and (ii), after the first braking control was executed, a second braking control to slow the vehicle at a second deceleration rate to stop at a specified position by controlling the braking device when the verifying portion verifies that the traffic light state information is valid. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An auto-braking controller for a vehicle, comprising:
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a determining portion that determines whether the vehicle will violate a red signal of a traffic light ahead of the vehicle, if the vehicle continues to travel under current traveling conditions, based on traffic light state information contained in each of messages received by a receiver from the traffic light over Vehicle-to-Infrastructure communication when the receiver receives the messages; a verifying portion that verifies the traffic light state information is valid by comparing the traffic light state information with an image of the traffic light optically captured by a sensor when the sensor receives the image of the traffic light after the receiver received the messages; and an executing portion that executes; (i) a first braking control to slow the vehicle at a first deceleration rate by controlling a braking device when the determining portion determines that the vehicle will violate a red signal; and (ii), after the first braking control was executed, a second braking control to slow the vehicle at a second deceleration rate to stop at a specified position by controlling the braking device when the verifying portion verifies that the traffic light state information is valid. - View Dependent Claims (8, 9, 10, 11)
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12. A method for auto-braking a vehicle, comprising:
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receiving, with a receiver, messages each containing traffic light state information from a traffic light ahead of the vehicle over Vehicle-to-Infrastructure communication; determining, with a determining portion, whether the vehicle will violate a red signal of the traffic light, if the vehicle continues to travel under current traveling conditions, based on the traffic light state information when the receiver receives the messages; executing, with an executing portion, a first braking control to slow the vehicle at a first deceleration rate by controlling a braking device when the determining portion determines that the vehicle will violate a red signal; optically detecting, with a sensor, an image of the traffic light after the receiver received the messages; verifying, with a verifying portion, the traffic light state information is valid by comparing the traffic light state information with the image of the traffic light captured by the sensor when the sensor captures the image of the traffic light; and after the first braking control was executed, executing, with the executing portion, a second braking control to slow the vehicle at a second deceleration rate to stop at a specified position by controlling the braking device when the verifying portion verifies that the traffic light state information is valid. - View Dependent Claims (13, 14, 15, 16)
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Specification