Tesla Motors, Inc.

Network Equipment Technologies, Inc.

Philip David Cole

Weston Arthur Hermann

Eugene Michael Berdichevsky

Scott Ira Kohn

Andrew David Baglino

Nils Ramon Marchant

Nicholas Robert Kalayjian

Kurt Russell Kelty

David Frederick Lyons

Jeffrey Brian Straubel

Arthur Joseph Hebert

Mike Reynolds

Noel Jason Mendez

James P Scott

Edward G Cavasian

James Jay Dunlay

An apparatus and method for these embodiments of the present invention, useful in manufacturing for example, includes a plurality of battery modules serially intercoupled together, each module including a housing with an anode connector and a cathode connector, each housing including a memory for storing a module identifier and wherein an anode connector of a first module is coupled to a cathode connector of a second module; and a processing system, coupled to each the module, for determining a plurality of positional attributes of each the module, one positional attribute associated with each the module of the plurality of modules, the processing system writing an ID into the memory of each particular module responsive to the associated positional attribute for the particular module.

Common mode voltage enumeration in a battery pack

An overcharge protection device (OPD) is provided that may be used alone, or in combination with conventional charging protection systems, to protect a battery pack from the occurrence of a potentially damaging overcharging event. The OPD is designed to be coupled to, and interposed between, the terminals of the battery pack. During normal system operation, the OPD has no effect on the operation of the charging system or the battery pack. During an overcharging event, if overcharging is not prevented by another conventional system, the OPD of the invention creates a short across the terminals of the battery pack causing a battery pack fuse designed to provide battery pack short circuit protection to blow, thereby interrupting the current path from the charger to the battery pack and preventing the battery pack from being overcharged.

Battery pack overcharge protection system

Systems and methods for diagnosing battery voltage misreporting is described. According to various embodiments, battery voltage may be monitored with respect to a state of charge and/or time. Based on this monitored information, battery charge state data may be generated by computing time derivatives of the monitored battery voltage across a voltage range. This battery charge state data may be compared with an expected set of charge state data if substantial differences exist, an error may be generated. Other embodiments are described and claimed.

Systems and methods for diagnosing battery voltage mis-reporting

A method of mitigating propagation of a thermal event in an energy storage system having a plurality of cells is disclosed. The method includes the steps of identifying the heat sources within the energy storage system and plurality of cells. The method then controls a temperature of the energy storage system and plurality of cells and also detects predetermined conditions within the energy storage system. The method then performs a predetermined action based on when one of the predetermined conditions is detected. A plurality of sensors and switches along with associated hardware or software will be used to control the temperature of the energy storage system upon detection of predetermined conditions involving overheating, over current, over voltage of the like.

Mitigation of propagation of thermal runaway in a multi-cell battery pack

A method and apparatus are provided for discarding a priority fair share of traffic of network connections. In one example, the method receives traffic of at least a particular network connection. A portion of a fixed buffer allocation space is filled with traffic of the particular network connection, wherein a buffer in the fixed buffer allocation space is associated with a fixed buffer allocation queue identification. A portion of a prioritized fair share buffer space is filled with traffic of the particular network connection, wherein a buffer in the prioritized fair share buffer space is associated with a priority fair share queue identification. A portion of the lowest priority traffic of the network connections is discarded.

Method and apparatus for discarding a prioritized fair share of traffic of network connections

A method and apparatus are provided for caching free cell pointers pointing to memory buffers configured to store data traffic of network connections. In one example, the method stores free cell pointers into a pointer random access memory (RAM). At least one free cell pointer is temporarily stored into internal cache configured to assist in lowering a frequency of reads from and writes to the pointer RAM. A request is received from an external integrated circuit for free cell pointers. Free cell pointers are sent to queues of the external integrated circuit, wherein each free cell pointer in a queue is configured to become a write cell pointer. At least one write cell pointer and a corresponding cell descriptor is received from the external integrated circuit. Free cell pointer counter values are then calculated in order to keep track of the free cell pointers.

Method and apparatus for caching free memory cell pointers

An apparatus and method are provided for transmitting data using synchronous dynamic random access memory (SDRAM). In example, the method includes writes data using a first set of SDRAM banks. Data is written using a second set of SDRAM banks, wherein the first set of SDRAM banks and the second set of SDRAM banks write interleaved, Data is read using a third set of SDRAM banks. Data is read using a fourth set of SDRAM banks, wherein the fourth set of SDRAM banks and the third set of SDRAM banks read interleaved.

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Redwood City, CA, United States of America

Philip David Cole