POWER SUPPLY SYSTEM

Organization Name

toyota jidosha kabushiki kaisha

Inventor(s)

Yasuhiro Endo of Toyota-shi JP

Junta Izumi of Nagoya-shi JP

Hironori Miki of Nagoya-shi JP

Kenji Kimura of Nagoya-shi JP

Takayuki Ban of Nishio-shi JP

Takuya Mizuno of Nagakute-shi JP

Shuji Tomura of Nagakute-shi JP

Naoki Yanagizawa of Nagakute-shi JP

Kazuo Ootsuka of Nagakute-shi JP

Hiroshi Tsukada of Nagakute-shi JP

POWER SUPPLY SYSTEM

This abstract first appeared for US patent application 20240258800 titled 'POWER SUPPLY SYSTEM

Original Abstract Submitted

the alternating current sweep unit outputs alternating current power from three battery strings that are y-connected. the offset voltage command vst_offset is calculated by adding the offset component v*abc_off of the string voltage obtained from the string voltage command v*abc, the amplitude vamp of the command voltage calculated using dq shaft voltage command values v*d and v*q, and the margin voltage vmrg. by determining the on-time ton of the gate signal by using the string voltage command v*abc and the offset voltage command vst_offset and performing duty control on the gate signal, it is possible to set an offset voltage corresponding to the command voltage, and thus it is possible to suppress an increase in battery loss.