Adaptive cruise control system
AssigneeGM Global Technology Operations LLC
InventorsWilliam F. Durgin, Cody D. Berman, Justin K. Francisco, Brunno L. Moretti
Life of this patent
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Abstract
Systems and processes are provided for adaptive cruise control. The process includes receiving information about a distance between vehicle and a traffic signal, receiving information about a state of the traffic signal, and determining whether to adjust the speed of the vehicle based upon the distance between the vehicle and the traffic signal and the state of the traffic signal.
Claims16
An adaptive cruise control system for a vehicle, the system comprising:
- an external object calculation module (EOCM), the EOCM comprising a processor coupled to a memory and an interface, the memory including instructions for improving a fuel efficiency of the vehicle;
- a plurality of object detection sensors;
- and
- a communication module having a vehicle to vehicle portion (V2V) configured to sense information from at least one other vehicle in a traffic queue and a vehicle to infrastructure portion (V2I) configured to sense information from an infrastructure element, wherein the EOCM receives data indicating at least one of a state of a traffic signal, and a duration of time that a traffic signal has been in a particular state from the V2I portion and receives data indicating a number of other vehicles in the traffic queue in front of the vehicle from the V2V portion, and is configured to automatically and adaptively adjust the speed of the vehicle by selecting an acceleration or deceleration method from a plurality of methods based on an analysis of the received data to improve the fuel efficiency of the vehicle, wherein the plurality of methods includes a method that changes an operating mode of a hybrid system, a method that shuts down an engine of the vehicle, a method that uses regenerative braking, and a method that uses friction brakes.
An external object calculation module (EOCM) for improving the fuel efficiency of a vehicle, the EOCM comprising:
- a computer processor;
- a memory, the memory coupled to the computer processor, the memory including instructions for improving the fuel efficiency of the vehicle;
- and
- an interface coupled to the computer processor, wherein the computer processor is configured to receive, via the interface, information about a total number of other vehicles in a traffic queue in front of the vehicle (V2V data) and information about the state of a traffic signal (V2I data), wherein the processor is configured to process the instructions stored in the memory based upon an analysis of the V2V data and the V2I data to select an acceleration or deceleration method from a plurality of methods to improve the fuel efficiency of a vehicle within which the EOCM is situated, wherein the plurality of methods includes a method that changes an operating mode of a hybrid system, a method that shuts down an engine of the vehicle, a method that uses regenerative braking, and a method that uses friction brakes.
A process for adaptively adjusting a speed of a vehicle, the process comprising:
- receiving, by a computer processor, information about a total number of other vehicles in a traffic queue in front of the vehicle;
- receiving, by the computer processor, information about a state of the traffic signal;
- selecting, by the processor, an acceleration or deceleration method from a plurality of methods based on the total number of other vehicles in the traffic queue, wherein the plurality of methods includes a method that changes an operating mode of a hybrid system, a method that shuts down an engine of the vehicle, a method that uses regenerative braking, and a method that uses friction brakes;
- and
- determining, by the computer processor, whether to accelerate or decelerate the speed of the vehicle based upon the state of the traffic signal and the selected acceleration or deceleration method.
Dependencies are inferred from the claim text.