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US 9,511,751 B2Granted
Object identification and active safety control for vehicles
AssigneeGM Global Technology Operations LLC
InventorsChad T. Zagorski, Kevin P. Conrad, Daniel Gandhi
Life of this patent
Estimating the term…
Abstract
Methods and vehicles are provided for identifying objects in proximity to the vehicle and controlling active safety functionality for the vehicle. A target object in proximity to the vehicle is detected. A movement of the target object is measured. The target object is classified based at least in part on the movement. The active safety functionality is controlled based at least in part on the classification of the target object.
Claims19
A method for identifying objects in proximity to a host vehicle, the method comprising the steps of:
- detecting a target object in proximity to the host vehicle;
- measuring longitudinal and lateral characteristics of movement of the target object classifying the target object, the classification including a determination as to whether or not the object is a motor vehicle, rather than an individual that is not in a motor vehicle, based at least in part on both:
- a first comparison of one or more longitudinal characteristics of the movement of the target with a first predetermined threshold and a second comparison of one or more lateral characteristics of the movement of the target object with a second predetermined threshold that is different from the first predetermined threshold, using a processor;
- wherein the target object is determined to be a motor vehicle, rather than an individual that is not in a motor vehicle, when:
- an absolute value of a relative lateral velocity of the target object with respect to the host vehicle is less than the first predetermined threshold;
- and
- an absolute value of a relative longitudinal velocity of the target object with respect to the host vehicle is less than the second predetermined threshold;
- and
- providing a notification, a braking or throttle control action, a corrective steering action, and/or a differential braking action if the target object is classified as a motor vehicle.
6 more elements
A method for controlling an active safety system for a host vehicle, the method comprising the steps of:
- identifying a target object in proximity to the host vehicle as being a motor vehicle or an individual that is not in a motor vehicle;
- calculating a time to collision between the target object and the host vehicle via a processor;
- implementing the active safety system in the host vehicle based on whether the time to collision is less than a first predetermined threshold if the target object is identified as comprising a motor vehicle;
- and
- implementing the same active safety system in the same host vehicle based on whether the time to collision is less than a second predetermined threshold if the target object is identified as comprising an individual not in a motor vehicle, the second predetermined threshold being greater than the first predetermined threshold, such that the same active safety system is triggered earlier if the target object is identified as an individual not in a motor vehicle as compared with if the target object is identified as a motor vehicle.
2 more elements
A vehicle comprising:
- a drive system;
- and
- an active safety system coupled to the drive system and configured to provide an action during a drive cycle of the vehicle, the active safety system comprising:
- a detection unit configured to:
- detect a target object in proximity to the vehicle, the active safety system;
- and
- measure values pertaining to a longitudinal characteristic and a lateral characteristic of movement of the target object;
- and
- a processor coupled to the detection unit and configured to classify the target object, the classification including a determination as to whether or not the object is a motor vehicle, rather than an individual that is not in a motor vehicle, based at least in part on both:
- a first comparison of the longitudinal characteristic of the movement of the target with a first predetermined threshold;
- and a second comparison of the lateral characteristic of the movement of the target object with a second predetermined threshold that is different from the first predetermined threshold, for use in providing the action, wherein the processor is configured to determine that the target object is a motor vehicle, rather than an individual that is not in a motor vehicle, when:
- an absolute value of a relative lateral velocity of the target object with respect to the host vehicle is less than the first predetermined threshold;
- and
- an absolute value of a relative longitudinal velocity of the target object with respect to the host vehicle is less than the second predetermined threshold.
11 more elements
Dependencies are inferred from the claim text.