Patent ID: 11858366
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 0:
1. A vehicle comprising:
a battery pack including a secondary battery, a battery sensor that detects a state of the secondary battery, and a first control device;
a second control device provided separately from the battery pack; and
a third control device provided separately from the battery pack, wherein:
the first control device is configured to use a detection value of the battery sensor to obtain a current upper limit value or a power upper limit value, the current upper limit value indicating an upper limit value of an input current of the secondary battery and the power upper limit value indicating an upper limit value of an input power of the secondary battery;
the battery pack is configured to output, to the third control device, the current upper limit value or the power upper limit value that is obtained by the first control device;
the second control device is configured to use the power upper limit value to control the input power of the secondary battery;
the third control device is configured to:
recognize whether the first control device obtains the current upper limit value or the power upper limit value in response to the battery pack being connected to the third control device,
output, to the second control device, the power upper limit value output from the battery pack in a case where the first control device obtains the power upper limit value, and
output, to the second control device, the power upper limit value obtained by a converter mounted in the third control device in a case where the first control device obtains the current upper limit value, and

the converter is configured to convert the current upper limit value into the power upper limit value by multiplying an estimated voltage value by the current upper limit value, the estimated voltage value being a voltage value of the secondary battery in a state where a current corresponding to the current upper limit value is flowing.