US 2018/0058868 A1 · ENERGY-OPTIMIZED VEHICLE ROUTE SELECTION

Abstract

A method for generating energy-optimized travel routes with a vehicle navigation system includes generating candidate travel routes between a route origin and one or more route destinations, and then dividing each candidate travel route into a plurality of route segments. The method includes estimating expected travel speeds along each segment using cloud information and calculating an expected energy efficiency over each of the candidate travel routes using one or more vehicle-specific energy efficiency models. The travel routes are displayed via the navigation system, including a trace of the energy-optimized travel routes and an expected or relative energy efficiency along the energy-optimized travel routes. A vehicle includes the navigation system and a powertrain. A powertrain controller may control vehicle speed over a selected route to maintain an optimally energy-efficient speed.

Claims20

Dependent claims

A method for generating energy-optimized travel routes in a navigation system of a vehicle, the method comprising:

generating, via the navigation system, a plurality of candidate travel routes for a trip having a route origin and a route destination;
dividing each of the candidate travel routes into a plurality of route segments;
estimating expected travel speeds of the vehicle along each of the route segments via the navigation system using cloud information, wherein the cloud information includes mapping data from a geospatial database and traffic information along each of the route segments, and wherein the traffic information includes at least one of real-time traffic information and historic traffic information for the route segments;
calculating an expected energy efficiency of the vehicle over each of the route segments;
and
displaying a plurality of energy-optimized travel routes via the navigation system using the calculated expected energy efficiency.

3 more elements

A vehicle comprising:

a plurality of drive wheels;
a torque-generating device;
a transmission or gear train having an input member connected to the torque-generating device and an output member connected to the drive wheels;
and
a navigation system configured to:
generate a plurality of candidate travel routes for a trip having a route origin and a route destination;
divide each of the candidate travel routes into a plurality of route segments;
estimate expected travel speeds of the vehicle along each of the route segments using cloud information, including real-time and historic traffic data and speed limits along each of the route segments;
calculate an expected energy efficiency of the vehicle over each of the route segments using at least one vehicle-specific energy efficiency model;
and
display a plurality of energy-optimized travel routes via the navigation system using the calculated expected energy efficiency, including displaying a trace of the energy-optimized travel routes and an expected or relative energy efficiency of the vehicle along each of the energy-optimized travel routes proximate the displayed travel routes.

8 more elements

Dependencies are inferred from the claim text.

Energy-optimized vehicle route selection

Life of this patent

Energy-optimized vehicle route selection

Life of this patent

Abstract

Claims20