×

Travel pattern generation device

  • US 9,183,740 B2
  • Filed: 09/15/2010
  • Issued: 11/10/2015
  • Est. Priority Date: 09/24/2009
  • Status: Active Grant
First Claim
Patent Images

1. A travel pattern generation device, comprising:

  • circuitry configured to;

    divide, based on a reference travel pattern comprising a speed and a travel time period of a vehicle and based on travel route information indicating a travel route that said vehicle travels, said travel route into a plurality of travel intervals at a plurality of reference points;

    determine a low fuel consumption travel pattern in which a travel time period of each of a plurality of travel intervals falls within a predetermined range of said travel time period of each of a corresponding plurality of travel intervals in said reference travel pattern and a cumulative speed increase amount, which is an accumulated value of speed increments in each of said plurality of travel intervals, is less than that of said reference travel pattern; and

    output the low fuel consumption travel pattern to improve fuel economy of the vehicle, whereinthe low fuel consumption travel pattern is generated based on at least one solution to an optimization problem defined by
    MinimizeQ=∫

    t0tNf(v(t))dt,
    Subject to ∫

    tn-1tnv(t)dt=Ln, Tn min

    t
    n

    T
    n max, n=1, . . . , N, in which Q represents a fuel consumption amount, tn represents a travel end time of an nth travel interval, Ln represents a distance associated with the nth travel interval, Tn min represents a minimum allowed time at the travel end time tn, and Tn max represents a maximum allowed time at the travel end time tn.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×