Battery monitoring device
AssigneeKabushiki Kaisha Toyota Jidoshokki
InventorsRyusuke Hase, Takahiro Tsuzuku
Life of this patent
Estimating the term…
Abstract
Upon receiving a setting signal S1, each of a plurality of monitoring units transmits the first setting signal to the subsequent monitoring unit or a control unit, and in a case when it is not possible to receive the first setting signal, the monitoring unit transmits a second setting signal, which indicates an occurrence of a communication abnormality, to the subsequent monitoring unit or the control unit, and when receiving the second setting signal, it changes the received second setting signal so as to transmit the changed second setting signal to the subsequent monitoring unit or the control unit, while the control unit identifies the occurrence location of a communication abnormality in accordance with second setting signal transmitted from the last monitoring unit.
Claims10
A battery monitoring device comprising:
- a plurality of monitors connected in series that each monitor a state of a battery;
- and
- a controller that is connected in series to the plurality of monitors connected in series and that communicates with the plurality of monitors by using identification information set for the plurality of monitors, wherein
- when any one monitor of the plurality of monitors receives a first setting signal transmitted from one of a previous monitor upstream in the series or from the controller, the one monitor receiving the first setting signal transmits the first setting signal to a subsequent monitor downstream in the series or to the controller when the subsequent monitor is a last monitor in the series,
- in a case when it is not possible for the one monitor to receive the first setting signal from the previous monitor upstream in the series or from the controller, the one monitor transmits a second setting signal, which indicates an occurrence of a communication abnormality and which is different from the first setting signal, to the subsequent monitor downstream in the series or to the controller when the subsequent monitor is the last monitor in the series, and when receiving the second setting signal transmitted from the previous monitor upstream in the series, the one monitor changes the received second setting signal so as to transmit the changed second setting signal to the subsequent monitor in the series or to the controller when the subsequent monitor is the last monitor in the series, and
- the controller identifies an occurrence location of a communication abnormality in accordance with the second setting signal transmitted from the last monitor in the series.
Dependencies are inferred from the claim text.