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Vehicle propulsion systems and methods

  • US 10,220,850 B2
  • Filed: 01/30/2017
  • Issued: 03/05/2019
  • Est. Priority Date: 01/30/2017
  • Status: Active Grant
First Claim
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1. A host vehicle comprising:

  • a vehicle body with a plurality of road wheels;

    a combustion engine configured to provide a propulsion torque to drive one or more of the road wheels and thereby propel the host vehicle;

    a sensor configured to detect a reference vehicle; and

    a controller programmed to;

    determine a current host vehicle location and a current host vehicle heading of the host vehicle,receive data with location coordinates indicative of a reference vehicle location of the reference vehicle,determine a path between the current host vehicle location and an upcoming intersection,transform the location coordinates of the reference vehicle location into transformed location coordinates complementary with a coordinate system relative to the current host vehicle location and heading,determine if the reference vehicle will move within the path ahead of the host vehicle and stop by estimating a trajectory path of the reference vehicle based on the transformed location coordinates of the reference vehicle location,in response to the reference vehicle moving within the path ahead of the host vehicle, forecast an intervening stop location and a path clearance time at which the host vehicle is determined to traverse the upcoming intersection,reduce an output of and/or deactivate the combustion engine prior to the host vehicle arriving at the intervening stop location in response to the path clearance time being greater than a predetermined time threshold,receive data indicative of a stopped state of the reference vehicle when stopped at the intervening stop location between the current host vehicle location and an infrastructure traffic device, andforecast when the reference vehicle will depart from the intervening stop location, wherein a duration of the host vehicle at the intervening stop location is based on the forecast of when the reference vehicle will depart from the intervening location.

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