US 9,809,224 B2
Battery charge/discharge control apparatus
Seiji Bito, Hamamatsu (JP)
Assigned to SUZUKI MOTOR CORPORATION, Hamamatsu-Shi (JP)
Filed by SUZUKI MOTOR CORPORATION, Hamatsu-shi, Shizuoka (JP)
Filed on Apr. 8, 2014, as Appl. No. 14/248,077.
Claims priority of application No. 2013-082879 (JP), filed on Apr. 11, 2013.
Prior Publication US 2014/0309824 A1, Oct. 16, 2014
Int. Cl. B60W 30/184 (2012.01); B60W 10/08 (2006.01); B60W 10/26 (2006.01); B60K 6/445 (2007.10); B60W 20/50 (2016.01)
CPC B60W 30/184 (2013.01) [B60K 6/445 (2013.01); B60W 10/08 (2013.01); B60W 10/26 (2013.01); B60W 20/50 (2013.01); Y02T 10/6239 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/7241 (2013.01); Y02T 90/14 (2013.01); Y10S 903/93 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A battery charge/discharge control apparatus for controlling charge/discharge of a battery in a vehicle comprising the battery serving as a motive power source for driving the vehicle, an inverter which performs conversion between a DC current and an AC current, a motor which transfers electric power to the battery through the inverter or from which electric power is transferred from the battery through the inverter, the battery charge/discharge control apparatus comprising:
at least one central processing unit configured to operate as a battery control portion, a vehicle control portion, a failure determination portion and an inverter driving state detection portion; and
wherein:
the battery control portion controls charge/discharge of the battery;
the vehicle control portion controls the inverter and controls the charge/discharge of the battery based on information from the battery control portion;
the failure determination portion determines whether there is a failure in the battery control portion or not;
the inverter driving state detection portion detects a driving state of the inverter;
the vehicle control portion controls the charge/discharge of the battery based on the driving state of the inverter detected by the inverter driving state detection portion when the failure determination portion determines that there is a failure in the battery control portion;
the battery control portion outputs, to the vehicle control portion, a charge/discharge control amount for controlling the charge/discharge of the battery; and
the battery charge/discharge control apparatus further comprising:
a storage portion which stores a relationship between the driving state of the inverter and the charge/discharge control amount;
wherein the at least one central processing unit further operates as a failure-time discharge control amount calculation portion which calculates the charge/discharge control amount based on the driving state of the inverter, which is detected by the inverter driving state detection portion and by referring to the relationship between the driving state of the inverter and the charge/discharge control amount stored in the storage portion, and
the vehicle control portion controls the charge/discharge of the battery based on the charge/discharge control amount supplied from the battery control portion when the failure determination portion determines that there is no failure in the battery control portion, and controls the charge/discharge of the battery based on the charge/discharge control amount calculated by the failure-time discharge control amount calculation portion when the failure determination portion determines that there is a failure in the battery control portion.