CONTROL SYSTEM FOR BATTERY

摘要

A control system for a battery includes a current sensor and an electronic control unit. The electronic control unit is configured to calculate a first error and a second offset error of the current sensor respectively based on outputs of the current sensor just before a stop of the electronic control unit and at startup of the electronic control unit. The electronic control unit is configured to correct an output of the current sensor by using a first error when a temperature of the current sensor at startup of the electronic control unit is higher than or equal to a threshold temperature, and correct the output of the current sensor by using a second error when the temperature of the current sensor at startup of the electronic control unit is lower than the threshold temperature.

主权项

1. A control system for a battery that can store electric power for generating driving force of a vehicle, the vehicle being operable by a user, the control system comprising:
a current sensor configured to detect a charge and discharge current of the battery; and an electronic control unit configured to; a) start up or stop in response to an operation conducted by the user, b) execute first correction control when a temperature of the current sensor at startup of the electronic control unit is higher than or equal to a threshold temperature, the first correction control being control for correcting an output of the current sensor by using a first error that is an offset error of the current sensor, the first error being calculated based on an output of the current sensor that the output is output just before a stop of the electronic control unit, and c) execute second correction control when the temperature of the current sensor at startup of the electronic control unit is lower than the threshold temperature, the second correction control being control for correcting an output of the current sensor by using a second error that is an offset error of the current sensor, the second error being determined based on an output of the current sensor that the output is output at startup of the electronic control unit.