Title:
CONTROL APPARATUS FOR PARALLEL BATTERY CONNECTION CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2011/148752
Kind Code:
A1
Abstract:
In a control apparatus for a parallel battery connection circuit, wherein malfunctioning is detected by detecting and comparing the states of a plurality of rechargeable battery packs connected in parallel, state detection circuits for detecting currents and temperatures are installed on the rechargeable battery packs, and a control circuit limits the currents on the basis of the magnitude of deviation between deviation in a comparison of the currents detected by the state detection circuits and/or a comparison of the temperatures detected by the state detection circuits, and a prescribed evaluation value(s). The control circuit also calculates the ratio of the currents detected by the state detection circuits, and limits the currents on the basis of the magnitude of deviation between the current ratio and a prescribed evaluation value, and also limits the currents on the basis of the magnitude of deviation between temperature deviation in a comparison of the temperatures detected by the state detection circuits, and a prescribed evaluation value. This enables prevention of overcharging and over-discharging, and also enables evaluation of malfunctioning, including deterioration and internal short-circuiting, with good precision.
Inventors:
BITO, Seiji (300 Takatsuka-cho, Minami-ku, Hamamatsu-sh, Shizuoka 11, 〒4328611, JP)
Application Number:
JP2011/060223
Publication Date:
December 01, 2011
Filing Date:
April 27, 2011
Export Citation:
Assignee:
SUZUKI MOTOR CORPORATION (300 Takatsuka-cho, Minami-ku Hamamatsu-sh, Shizuoka 11, 〒4328611, JP)
スズキ株式会社 (〒11 静岡県浜松市南区高塚町３００番地 Shizuoka, 〒4328611, JP)
スズキ株式会社 (〒11 静岡県浜松市南区高塚町３００番地 Shizuoka, 〒4328611, JP)
International Classes:
H02J7/00; B60L3/00; H01M10/44; H01M10/48; H01M10/50
Attorney, Agent or Firm:
KOKUBUN, Takayoshi (5th Floor, NBF Ikebukuro City Building 17-8, Higashi-Ikebukuro 1-chome, Toshima-k, Tokyo 13, 〒1700013, JP)
Claims:
Previous Patent: PROTECTIVE RELAY APPARATUS
Next Patent: HYBRID VEHICLE ACCELERATOR PEDAL DEPRESSING FORCE CONTROL DEVICE
Next Patent: HYBRID VEHICLE ACCELERATOR PEDAL DEPRESSING FORCE CONTROL DEVICE