Automotive vehicle battery power system monitoring systems, apparatus and methods
First Claim
1. A battery monitoring system connectable to monitor and control a battery stack comprising a plurality of battery cells, the system comprising:
- a central battery control unit (BCU) comprising a power supply configured to provide a low voltage electrical supply, a BCU controller, and an address signal source configured to output a reference address signal on an address signaling path; and
a plurality of module control units (MCUs) connectable to receive the low voltage electrical supply from the BCU, each MCU connectable to a battery module comprising one or more of the plurality of battery cells, each MCU comprising an address signal input and an address signal output for connecting the module control unit along the address signaling path, an address signal coupler connected between the address signal input and the address signal output, and an MCU controller,wherein the BCU controller is configured to determine a number of the plurality of module control units connected on the address signaling path based at least in part on;
a signal detected by the BCU on the address signaling path,a predetermined property of the reference address signal, anda predetermined property of the address signal coupler,and wherein each MCU controller is configured determine a position of an associated MCU along the address signaling path based at least in part on;
a signal detected by the associated MCU on the address signaling path,a predetermined property of the reference address signal, anda predetermined property of the address signal coupler.
2 Assignments
0 Petitions
Accused Products
Abstract
A battery monitoring system comprises a battery control unit (BCU) and a plurality of module control units (MCUs) connectable to battery modules. The BCU comprises a low voltage power supply, a BCU controller, and a reference address signal source connected to an address signaling path. The MCUs receive low voltage power from the BCU. Each MCU comprises an address signal input and output with a signal coupler therebetween for connecting the module control unit along the address signaling path, and an MCU controller. The BCU controller determines a number of MCUs on the address signaling path, and each MCU controller determines the associated MCU'"'"'s position along the address signaling path, based at least in part on a detected signal on the address signaling path and predetermined properties of the reference address signal and address signal coupler. A ground fault detection unit may provide a fault signal to the BCU controller.
64 Citations
20 Claims
-
1. A battery monitoring system connectable to monitor and control a battery stack comprising a plurality of battery cells, the system comprising:
-
a central battery control unit (BCU) comprising a power supply configured to provide a low voltage electrical supply, a BCU controller, and an address signal source configured to output a reference address signal on an address signaling path; and a plurality of module control units (MCUs) connectable to receive the low voltage electrical supply from the BCU, each MCU connectable to a battery module comprising one or more of the plurality of battery cells, each MCU comprising an address signal input and an address signal output for connecting the module control unit along the address signaling path, an address signal coupler connected between the address signal input and the address signal output, and an MCU controller, wherein the BCU controller is configured to determine a number of the plurality of module control units connected on the address signaling path based at least in part on; a signal detected by the BCU on the address signaling path, a predetermined property of the reference address signal, and a predetermined property of the address signal coupler, and wherein each MCU controller is configured determine a position of an associated MCU along the address signaling path based at least in part on; a signal detected by the associated MCU on the address signaling path, a predetermined property of the reference address signal, and a predetermined property of the address signal coupler. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification