Vehicle-based stop-and-go mitigation system
AssigneesToyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha
InventorsYASHAR ZEIYNALI FARID, Kentaro Oguchi
Life of this patent
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Abstract
Systems and methods are provided for activating mitigation strategies to reduce or eliminate the stop-and-go traffic. Mitigation strategies can be applied to reduce stop-and-go traffic or prevent a control vehicle from experiencing stop-and-go traffic. The control vehicle can predict when to apply mitigation strategies based on sensor data that can be applied to generate a trajectory for the control vehicle or a preceding vehicle.
Claims20
A method comprising:
- determining a first stop-and-go wave based on trajectory-of a control vehicle;
- based on the first stop-and-go wave, determining that the control vehicle is entering a deceleration phase of a second stop-and-go wave;
- operating the control vehicle in accordance with a mitigation strategy based on determining that the control vehicle is entering the deceleration phase;
- and
- deactivating the mitigation strategy after a cruise time threshold or a cruise distance threshold has elapsed.
A vehicle, comprising:
- at least one gap detection sensor;
- a processor;
- and
- a memory coupled to the processor to store instructions, which when executed by the processor, cause the processor to:
- determine a first stop-and-go wave based on trajectory of a control vehicle;
- based on the first stop-and-go wave, determine that a preceding vehicle is entering a deceleration phase of a second stop-and-go wave;
- determine a threshold distance between the vehicle and the preceding vehicle at which to activate a mitigation strategy;
- operate the vehicle in accordance with the mitigation strategy when a distance between the vehicle and the preceding vehicle is equal to or less than the threshold distance;
- and
- deactivating the mitigation strategy after a cruise time threshold or a cruise distance threshold has elapsed.
A non-transitory machine-readable medium having instructions stored therein, which when executed by a processor, cause the processor to perform operations, the operations comprising:
- determining a first stop-and-go wave based on a control vehicle's trajectory;
- based on the first stop-and-go wave, determining that the control vehicle is entering a deceleration phase of a second stop-and-go wave;
- operating the control vehicle in accordance with a mitigation strategy until the control vehicle enters a cruise phase;
- measuring a time at which the control vehicle travels in the cruise phase;
- and
- deactivating the mitigation strategy after a cruise time threshold or a cruise distance threshold.
Dependencies are inferred from the claim text.