VEHICLE CRUISING RANGE ESTIMATOR

• Main Authors: MATSUMI TOSHIYUKI, HATSUMI NORIHIKO, MIYAMOTO HIROAKI, SUGIMOTO TAKANORI, HASHIZAKA AKIRA, SANO YOSHIAKI, HATSUDA YASUYUKI
• Format: Patent
• Language: English
• Published: 04.02.2013
• Subjects: BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; GENERATION; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SYSTEMS FOR STORING ELECTRIC ENERGY; TRANSPORTING; VEHICLES IN GENERAL

PROBLEM TO BE SOLVED: To properly set a sampling interval for calculating a power consumption and to properly estimate a cruising range based on a power consumption in response to a situation.SOLUTION: A vehicle cruising range estimator includes a remaining quantity calculation means 12 for calculating the remaining quantity of power in a driving battery 7, a first power consumption calculation means 14a for calculating a first power consumption based on the power consumption of the battery 7 and a vehicle travel distance at a first sampling interval, a second power consumption calculation means 14b for calculating a second power consumption based on the power consumption of the battery 7 and a vehicle travel distance at a second sampling interval longer than the first sampling interval, and a cruising range estimation means 15 for estimating a cruising range estimation value by using the remaining quantity of the battery 7 and the first and second power consumptions.