Patent ID: 9598051
Date: 2017-03-21
CPC Classifications: B60R

Claim:
1. A power consumption suppression system for an electronic key terminal that suppresses power consumption in an electronic key terminal that communicates with an on-vehicle device in a vehicle, the system comprising one or more electronic circuits installed in the electronic key terminal, the electronic circuits including: a location information acquisition ECU configured to acquire locking location information as information on a location where the vehicle has been locked with the electronic key terminal and terminal location information as information on a location of the electronic key terminal; and a power consumption suppression ECU configured to suppress power consumption in the electronic key terminal when a relative distance between the location where the vehicle has been locked indicated by the locking location information acquired by the location information acquisition ECU and the location of the electronic key terminal indicated by the terminal location information is equal to or longer than a prescribed distance, wherein the location information acquisition ECU is configured to hold the lock location information in the electronic key terminal, wherein the location information acquisition ECU is configured to acquire the relative distance from the locking location information acquired by the location information acquisition ECU without requiring periodic communications with the vehicle and held in the electronic key terminal, and the terminal location information acquired at each time.