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Patent Searching and Data


Title:
VEHICLE INFORMATION CONTROL DEVICE AND VEHICLE INFORMATION CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2019/087622
Kind Code:
A1
Abstract:
Since device efficiency changes depending on variation between individual electric motors, the use histories thereof, and the like, there is a possibility that the device efficiency at a certain operation point has an actual value different from a previously measured value. Therefore, when control for maximizing the device efficiency is performed on the basis of the previously measured device efficiency, there is a possibility that an obtained energy-saving effect becomes less than an expected energy-saving effect. In order to deal with such problem, this vehicle information control device is provided with: an actual power consumption calculation unit for calculating, from an overhead line voltage and an overhead line current, an actual power consumption actually consumed by a vehicle; a theoretical power consumption calculation unit for calculating a theoretical power consumption of the vehicle from the tread force of the vehicle output by a vehicle drive device and the vehicle speed of the vehicle on the basis of a theoretical equation; a device efficiency calculation unit for calculating the device efficiency of the vehicle from the actual power consumption and the theoretical power consumption; and a device efficiency storage unit for holding the device efficiency.

Inventors:
ODA ATSUSHI (JP)
TOKUYAMA KAZUO (JP)
Application Number:
PCT/JP2018/035668
Publication Date:
May 09, 2019
Filing Date:
September 26, 2018
Export Citation:
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Assignee:
HITACHI LTD (JP)
International Classes:
B60L15/20
Domestic Patent References:
WO2012120681A12012-09-13
Foreign References:
JP2014236547A2014-12-15
JP2010512267A2010-04-22
JP2010088145A2010-04-15
Other References:
See also references of EP 3705340A4
Attorney, Agent or Firm:
PATENT CORPORATE BODY DAI-ICHI KOKUSAI TOKKYO JIMUSHO (JP)
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