BATTERY APPARATUS FOR CONTROLLING PLURAL BATTERIES AND CONTROL METHOD OF PLURAL BATTERIES
1 Assignment
0 Petitions
Accused Products
Abstract
Lower order control devices control plural battery cells configuring plural battery modules. An input terminal of the low order control device in the highest potential, an output terminal of the low order control device in the lowest potential, and a high order control device are connected by isolating units, photocouplers. Diodes which prevent a discharge current of the battery cells in the battery modules are disposed between the output terminal of the low order control device and the battery cells in the battery module on the low potential side. Terminals related to input/output of a signal are electrically connected without isolating among the plural low order control devices.
42 Citations
37 Claims
-
1-10. -10. (canceled)
-
11. A method of operating a battery control system comprising a plurality of serially connected integrated circuits which are connected to a control device and connected in series in a manner that a signal input circuit and a signal output circuit between every adjacent two of the plurality of serially connected integrated circuits are coupled by a signal transmission path in an electrically non-isolated manner, the method comprising the steps of:
-
transmitting a control signal from the control device to the plurality of integrated circuits; receiving by a first integrated circuit of the plurality of serially connected integrated circuits, the control signal; sending the control signal to the next integrated circuit of the plurality of serially connected integrated circuits, wherein the steps of receiving and sending are repeated at least until all of the plurality of integrated circuits has carried out the steps and one of the plurality of integrated circuits sends the control signal back to the control device; and checking by the control device to determine whether the received control signal is normal. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
-
-
19. A battery apparatus, comprising:
-
a plurality of battery modules coupled in series and each including a plurality of battery cells; a first control device group having a plurality of first control devices corresponding to the plurality of battery modules, respectively, each of the plurality of first control devices detecting states of the plurality of battery cells contained in a corresponding one of the plurality of battery modules; and a second control device which sends a control signal to the first control device group via an insulator, wherein each of the plurality of first control devices is configured by an integrated circuit, wherein a plurality of the integrated circuits of the plurality of first control devices are connected in series, wherein a plurality of the integrated circuits are coupled in series in a manner that a signal output circuit of one integrated circuit and a signal input circuit of other integrated circuit between every adjacent two of the plurality of integrated circuits coupled in series are coupled by a signal transmission path in an electrically non-isolated manner, wherein another integrated circuit of the plurality of the integrated circuits coupled in series receives the control signal sent from the second control device at the signal input circuit thereof via the insulator, and sends the control signal from the signal output circuit of the another integrated circuit to the signal input circuit of a next integrated circuit of the plurality of the integrated circuits via the signal transmission path, wherein the receiving of the control signal at the signal input circuit and the sending of the control signal from the signal output circuit to the signal input circuit of the next integrated circuit via the signal transmission path is repeated to a still another integrated circuit of the plurality of the integrated circuits which sends the control signal to the second control device, and wherein the second control device confirms whether or not the control signal returned from the still another integrated circuit is normal. - View Dependent Claims (20, 21, 22, 23, 24)
-
-
25. A battery apparatus electrically coupled to an inverter, comprising:
-
a plurality of battery modules coupled in series and each including a plurality of battery cells, the plurality of battery modules being charged with an electric current by the inverter and discharging an electric current to the inverter; a first control device group having a plurality of first control devices corresponding to the plurality of battery modules, respectively, each of the plurality of first control devices detecting states of the plurality of battery cells contained in a corresponding one of the plurality of battery modules; and a second control device which sends a control signal to the first control device group via an insulator, wherein each of the plurality of first control devices is configured by an integrated circuit, wherein a plurality of the integrated circuits of the plurality of first control devices are connected in series, wherein a plurality of the integrated circuits are coupled in series in a manner that a signal output circuit of one integrated circuit and a signal input circuit of other integrated circuit between every adjacent two of the plurality of integrated circuits coupled in series are coupled by a signal transmission path in an electrically non-isolated manner, wherein another integrated circuit of the plurality of the integrated circuits coupled in series receives the control signal sent from the second control device at the signal input circuit thereof via the insulator, and sends the control signal from the signal output circuit of the another integrated circuit to the signal input circuit of a next integrated circuit of the plurality of the integrated circuits via the signal transmission path, wherein the receiving of the control signal at the signal input circuit and the sending of the control signal from the signal output circuit to the signal input circuit of the next integrated circuit via the signal transmission path is repeated to a still another integrated circuit of the plurality of the integrated circuits which sends the control signal to the second control device, and wherein when the control signal transmitted via the transmission path is influenced by noise of the inverter and becomes abnormal, the same control signal is resent to the transmission path. - View Dependent Claims (26, 27, 28, 29, 30)
-
-
31. A method of operating a battery control system comprising a plurality of serially connected integrated circuits and a control device, the serially connected integrated circuits are coupled together by a signal transmission path in an electrically non-isolated manner, the method comprising:
-
sending, from the control device, a control signal to the first of the plurality of integrated circuits through an isolator; receiving the control signal by the first of the plurality of integrated circuits; sending the control signal to the next integrated circuit by the first integrated circuit, wherein the steps of receiving the control signal and sending the control signal to the next integrated circuit is repeated until the last integrated circuit receives the control signal. - View Dependent Claims (32, 33, 34, 35, 36, 37)
-
Specification