POWER SUPPLY DEVICE

• US 20200136199A1
• Filed: 10/18/2019
• Published: 04/30/2020
• Est. Priority Date: 10/31/2018
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: YANAGIZAWA, Naoki, TOMURA, Shuji, TANEMURA, Kyosuke, OOTSUKA, Kazuo, GOTO, Shigeaki, IZUMI, Junta, KIMURA, Kenji
• Granted Patent: US 11,349,156 B2
• Time in Patent Office: Days
• CPC Class Codes: H01M 10/4207 for several batteries or cells simultaneously or sequentially
• CPC Class Codes: H01M 10/425 Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing printed circuits H05K1/00
• CPC Class Codes: H01M 10/4257 Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
• CPC Class Codes: H01M 10/482 for several batteries or cells simultaneously or sequentially
• CPC Class Codes: H01M 2010/4271 Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
• CPC Class Codes: H01M 2010/4278 Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
• CPC Class Codes: H03K 17/26 Modifications for temporary blocking after receipt of control pulses
• CPC Class Codes: H03K 17/284 in field effect transistor switches
• CPC Class Codes: H03K 17/567 Circuits characterised by the use of more than one type of semiconductor device, e.g. BIMOS, composite devices such as IGBT
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

In a power supply device including a plurality of battery modules each including a secondary battery, in which the battery modules are connected in series to one another according to a gate driving signal from a controller and in each of the battery modules, the gate driving signal is delayed in a gate driving signal processing circuit included in the battery module and then transmitted from upstream to downstream of the series connection, an ID is provided for each of the battery modules by transmitting an ID setting signal for providing an ID unique to the battery module using a gate signal line for transmitting the gate driving signal.

Claims

1. A power supply device including a plurality of battery modules each including a secondary battery, in which the battery modules are connected in series to one another according to a gate driving signal from a controller and in each of the battery modules, the gate driving signal is delayed in a gate driving signal processing circuit included in the battery module and then transmitted from upstream to downstream of the series connection,

wherein an ID is provided for each of the battery modules by transmitting an ID setting signal for providing an ID unique to the battery module using a gate signal line for transmitting the gate driving signal.

2. The power supply device according to claim 1, wherein if the ID setting mode instruction signal agrees with a predetermined signal waveform for transition to an ID setting mode, the gate driving signal processing circuit enters a mode for ID setting.

3. The power supply device according to claim 1, wherein the gate driving signal processing circuit changes the ID setting signal received from the preceding battery module into a signal waveform for setting an ID unique to the subsequent battery module.

4. The power supply device according to claim 3, wherein:

the ID setting signal has a pulse waveform; and

the gate driving signal processing circuit changes the number of pulses of the ID setting signal received from the preceding battery module to the number of pulses for setting an ID unique to the subsequent battery module.

5. The power supply device according to claim 1, wherein the gate driving signal is returned from the most downstream battery module to the controller, and the controller acquires the number of connected battery modules based on the returned ID setting signal.