Travel pattern generation device
First Claim
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≦
tn≦
Tn 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.
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Accused Products
Abstract
A travel interval division part and a low fuel consumption travel pattern generation part are included, the travel interval division part dividing, based on a reference travel pattern indicating a speed and a travel time period in a case where a vehicle travels without consideration of energy consumption and based on travel route information indicating a travel route that the vehicle travels, the travel route into a plurality of travel intervals at a plurality of reference points, the low fuel consumption travel pattern generation part determining a low fuel consumption travel pattern in which a travel time period of each travel interval falls within a predetermined range of a travel time period of each travel interval of the reference travel pattern and a cumulative speed increase amount in each travel interval is smaller than that of the reference travel pattern.
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Citations
9 Claims
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1. A travel pattern generation device, comprising:
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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, wherein the 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≦
tn≦
Tn 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 Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification