Abstract: A connector for use with a sensor, such as a pressure sensor, has EMI absorbing capabilities. The connector includes a polymeric body configured for coupling to a sensor body and an EMI absorbing material. The EMI absorbing material may be entrained in the polymeric body, coated on the polymeric body, or otherwise integrated with the polymeric body. The EMI absorbing material may be carbon black or carbon nanotubes.

Abstract: A system and method of in cell sensing is provided. The method may include measuring sensing data from a sensor assembly hermetically sealed within a battery cell. The sensor assembly may include a sensing element, a processor and a radio. The method may further include sending and receiving the sensing data, via the sensor assembly. The sensing data may include at least one of temperature, pressure, voltage and shock of the battery cell.

Abstract: A connector for use with a sensor, such as a pressure sensor, has EMI absorbing capabilities. The connector includes a polymeric body configured for coupling to a sensor body and an EMI absorbing material. The EMI absorbing material may be entrained in the polymeric body, coated on the polymeric body, or otherwise integrated with the polymeric body. The EMI absorbing material may be carbon black or carbon nanotubes.

Abstract: Methods, systems, apparatuses, and computer program products for using a secure wireless protocol within a wireless battery management system are disclosed. In a particular embodiment, a first wireless component of the BMS determines, based on a freshness value counter, a first freshness value. The first wireless component generates a message body comprising the first freshness value and a data payload. In this embodiment, the first wireless component uses a first session key shared with a second wireless component of the BMS, to encrypt the message body and generate a message authentication code based on the encrypted message body and the first session key. The first wireless component transmits to the second wireless component, a message that includes the encrypted message body and the message authentication tag.

Abstract: In a particular embodiment, a method of functional safety in a battery management system is disclosed that includes: generating, by a module monitoring system of the battery management system, battery sensor data; generating, by the module monitoring system, based on the battery sensor data, integrity data; sending, by the module monitoring system, via a wireless black communication channel to a wireless network controller of the battery management system, the battery sensor data and the integrity data; and sending, by the wireless network controller, to a vehicle control system, the battery sensor data.

Abstract: In a particular embodiment, functional safety in a battery management system includes a network controller of a battery management system (BMS) receiving from a module monitoring system (MMS) of the BMS, a message that includes a first set of data type blocks. In this embodiment, the network controller determines for the first set of data type blocks, a block sequence order that indicates a position of each data type block within the message. The network controller determines whether the message conforms with a predetermined block sequence protocol. In response to determining that the message does not conform with a predetermined block sequence protocol, the network controller determines that data within the message is stale.

Abstract: Methods, apparatuses, and systems for accelerated error testing for wireless battery management systems are disclosed. Embodiments in accordance with the present disclosure are directed to wireless sensor systems, and specifically to wireless battery management systems (BMS) in vehicles. A test system for a BMS provides a plurality of interference test profiles each comprising interference signals for testing the BMS. For each interference test profile, the interference signals are broadcast by the test system during operation of the BMS. The test system samples packets received by the wireless network controller from at least one battery measurement device during the broadcast of the interference signals and determines a packet error rate (PER) of the BMS for the interference test profile.

Abstract: Methods, apparatuses, and computer program products for utilizing a multi-functional wireless module monitoring system (MMS) in an electric battery pack are disclosed. In a particular embodiment, utilizing the multi-functional wireless MMS in an electric battery pack includes the multi-functional wireless MMS monitoring one or more attributes of a plurality of battery cells in the electric battery pack and generating based on the monitored one or more attributes, battery sensor data. Responsive to the multi-functional wireless MMS operating in a first operational mode, the multi-functional wireless MMS transmits via a wireless interface, a first set of the battery sensor data to a wireless network controller (WNC) of a battery management system (BMS). Responsive to the multi-functional wireless MMS operating in a second operational mode, the multi-functional wireless MMS transmits via a wired interface, a second set of the battery sensor data.

Abstract: In a particular embodiment, an apparatus is disclosed that includes a battery pack structure that includes a plurality of battery cells. The apparatus also includes wireless battery management system that includes a first wireless communication device, a second wireless communication device, and a radio frequency passive repeater. The radio frequency passive repeater includes a conductor cable, a first antenna at a first end of the conductor cable, and a second antenna at the second end of the conductor cable. In this example embodiment, the first antenna is located within a first wireless signal reception zone of the first wireless communication device and the second antenna is located within a second wireless signal reception zone of the second wireless communication device.

Abstract: Methods, apparatuses, systems, and computer program products for lifetime battery tracking using a wireless interface are disclosed. During production and assembly of a battery pack, the location of a battery module in a production line is tracked using detected signal strengths from a wireless transmitter of a battery module monitoring system. During the life of the battery module, the battery module monitoring system provides battery usage data that can be combined with vehicle data for diagnostic analysis.

Abstract: Methods, apparatuses, systems, devices, and non-transitory for resolving a failure in communication within a wireless battery management system (BMS) of a vehicle are disclosed. In a particular embodiment, a wireless network controller (WNC) of a wireless BMS determines that there is a failure in communication between the WNC and one or more module measurement systems (MMS). The WNC also determines a background radio frequency (RF) power level of a communication channel between the WNC and the one or more MMS and based on the determined background RF power level, selects one or more actions to perform in an attempt to correct the failure in communication between the WNC and the one or more MMS. In this particular embodiment, the WNC performs the selected one or more actions in an attempt to correct the failure in communication.

Abstract: Embodiments for adaptive multipath control within an electric vehicle battery pack are disclosed. In a particular embodiment, a method for adaptive multipath control includes modifying at least one of: one or more transmission properties and one or more reflection properties of a metasurface of a module measurement system of a battery management system. In this embodiment, the metasurface is proximate to an antenna of the module measurement system. The method also includes transmitting, via the antenna of the module measurement system, battery sensor data.

Abstract: A wireless protocol in a sensing system, including: sending, by a wireless network controller (WNC), to a plurality of wireless sensor nodes, based on a time division multiple access (TDMA), a synchronization message; and receiving, by the wireless network controller, based on the TDMA, first sensor data from each wireless sensor node of the plurality of wireless sensor nodes.

Abstract: In a particular embodiment, optical communications in a battery pack is disclosed that includes generating, by a module monitoring system of a battery management system, sensor data; encoding, by the module monitoring system, the sensor data into an optical signal; sending, by the module monitoring system, to a data aggregator, the sensor data as the optical signal; and decoding, by the data aggregator, the optical signal into the sensor data.

Abstract: Methods, apparatuses, systems, and computer program products for lifetime battery tracking using a wireless interface are disclosed. During production and assembly of a battery pack, the location of a battery module in a production line is tracked using detected signal strengths from a wireless transmitter of a battery module monitoring system. During the life of the battery module, the battery module monitoring system provides battery usage data that can be combined with vehicle data for diagnostic analysis.

Abstract: Methods and apparatuses for a listening only wireless network controller in a wireless battery management system are disclosed. A primary wireless network controller (WNC) receives battery sensor data from a plurality of module monitoring systems (MMSs). A secondary WNC also receives the battery sensor data from the MMSs. The secondary WNC is listening-only, in that it does not send commands to the MMSs. The listening-only WNC may be used to collect and provide redundant data for communication integrity or enhanced data for performance and diagnostic purposes. A collection of listening-only WNCs may be used to map locations of MMSs based on signal strength.

Abstract: Methods and apparatuses for a listening only wireless network controller in a wireless battery management system are disclosed. A primary wireless network controller (WNC) receives battery sensor data from a plurality of module monitoring systems (MMSs). A secondary WNC also receives the battery sensor data from the MMSs. The secondary WNC is listening-only, in that it does not send commands to the MMSs. The listening-only WNC may be used to collect and provide redundant data for communication integrity or enhanced data for performance and diagnostic purposes. A collection of listening-only WNCs may be used to map locations of MMSs based on signal strength.

Abstract: In a particular embodiment, optical communications in a battery pack is disclosed that includes generating, by a module monitoring system of a battery management system, sensor data; encoding, by the module monitoring system, the sensor data into an optical signal; sending, by the module monitoring system, to a data aggregator, the sensor data as the optical signal; and decoding, by the data aggregator, the optical signal into the sensor data.

Abstract: In a particular embodiment, a method of functional safety in a battery management system is disclosed that includes: generating, by a module monitoring system of the battery management system, battery sensor data; generating, by the module monitoring system, based on the battery sensor data, integrity data; sending, by the module monitoring system, via a wireless black communication channel to a wireless network controller of the battery management system, the battery sensor data and the integrity data; and sending, by the wireless network controller, to a vehicle control system, the battery sensor data.