System and method for battery management
First Claim
1. A system for managing a plurality of batteries, the system comprising:
- a plurality of monitor modules, each monitor module coupled to at least one of the plurality of batteries and configured to monitor the voltage and temperature of the at least one of the plurality of batteries;
a fiber optic network coupling the plurality of monitor modules;
a master controller coupled to the fiber optic network and configured to;
command the transmission of battery temperature information and battery voltage information from the plurality of battery monitors over the fiber optic network;
receive battery temperature information and battery voltage information from the plurality of battery monitors over the fiber optic network; and
perform calculations based on the received battery temperature information and battery voltage information to determine if any of the plurality of batteries require balancing measures, and based thereon, command the corresponding monitor modules to implement balancing measures over the fiber optic network,wherein the fiber optic network is configured in a ring topology so as to couple the master controller with each of the monitor modules in a daisy chain fashion, andwherein the master controller is configured so that it can command a plurality of the monitor modules to transmit battery temperature information and battery voltage information so that in response to the command the responsive transmission in the aggregate indicates the battery temperature information and battery voltage information as well as an identity of each corresponding monitor module based upon its temporal position in a received information stream.
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Accused Products
Abstract
A method and system for managing a plurality of batteries and useable by way of example with a partially or completely electrically powered vehicle (EV) includes a plurality of monitor modules each coupled to at least one of the plurality of batteries and configured to monitor the voltage and temperature thereof, a master controller, and a non-conductive fiber optic network coupling the plurality of monitor modules to one another and to the master controller. The master controller commands the transmission of battery voltage and temperature information from the plurality of monitor modules over the network, receives battery voltage and temperature information from the monitor modules over the network, and perform calculations based on the received information to determine if any of the plurality of batteries require balancing measures, and based thereon, commands the corresponding monitor modules to implement balancing measures over the network.
28 Citations
19 Claims
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1. A system for managing a plurality of batteries, the system comprising:
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a plurality of monitor modules, each monitor module coupled to at least one of the plurality of batteries and configured to monitor the voltage and temperature of the at least one of the plurality of batteries; a fiber optic network coupling the plurality of monitor modules; a master controller coupled to the fiber optic network and configured to; command the transmission of battery temperature information and battery voltage information from the plurality of battery monitors over the fiber optic network; receive battery temperature information and battery voltage information from the plurality of battery monitors over the fiber optic network; and perform calculations based on the received battery temperature information and battery voltage information to determine if any of the plurality of batteries require balancing measures, and based thereon, command the corresponding monitor modules to implement balancing measures over the fiber optic network, wherein the fiber optic network is configured in a ring topology so as to couple the master controller with each of the monitor modules in a daisy chain fashion, and wherein the master controller is configured so that it can command a plurality of the monitor modules to transmit battery temperature information and battery voltage information so that in response to the command the responsive transmission in the aggregate indicates the battery temperature information and battery voltage information as well as an identity of each corresponding monitor module based upon its temporal position in a received information stream. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for managing a plurality of batteries, the method comprising:
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coupling a plurality of monitor modules each to at least one of the plurality of batteries; monitoring the voltage and temperature of the coupled batteries with the monitor modules; coupling a fiber optic network to the plurality of monitor modules; coupling a master controller to the fiber optic network; commanding the transmission of battery temperature information and battery voltage information from the plurality of battery monitors over the fiber optic network with the master controller; receiving battery temperature information and battery voltage information from the plurality of battery monitors over the fiber optic network with the master controller; performing calculations based on the received battery temperature information and battery voltage information to determine if any of the plurality of batteries require balancing measures, and based thereon, commanding the corresponding monitor modules to implement balancing measures over the fiber optic network with the master controller; and configuring the master controller so that it can command a plurality of the monitor modules to transmit battery temperature information and battery voltage information so that in response to the command the responsive transmission in the aggregate indicates the battery temperature information and battery voltage information as well as an identity of each corresponding monitor module based upon its temporal position in a received information stream, wherein said coupling a fiber optic network includes configuring the fiber optic network in a ring topology so as to couple the master controller with each of the monitor modules in a daisy chain fashion. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification