![]() ![]() “Security is built into every layer of our wireless BMS. “Security is important to wireless systems, so our protocols are state of the art,” adds Ram Vedantham, 2.4 GHz business line manager for connectivity at TI. “The BQ79616-Q1 battery monitor and balancer offers different channel options in the same package type, providing pin-to-pin compatibility and supporting reuse of the established software and hardware across any platform.” ![]() “The CC2662R-Q1 wireless MCU isolates individual cell monitoring units, eliminating the need for and cost of daisy-chain isolation components,” Steinmetz points out. “The system is designed to support up to 100 nodes with the industry’s lowest latency of less than 2 ms per node and time-synchronized measurements across every node. “The deterministic protocol provides the highest throughput in the market, enabling to create a battery module using a single wireless system-on-chip connected with multiple BQ79616-Q1 battery monitors for different configurations such as 32-, 48- and 60-cell systems,” says Steinmetz. “With this wireless MCU, dedicated time slots that provide high throughput and low latency protect data from loss or corruption, while enabling multiple battery cells to send voltage and temperature data to the main MCU with ☒-mV accuracy and a network packet error rate of less than 10 -7. ![]() “Rivaling wired connections, via the SimpleLink CC2662R-Q1 wireless MCU offers the industry’s highest network availability of greater than 99.999 percent and a network restart of 300-ms maximum availability,” claims Steinmetz. “By demonstrating a solution that combines these advantages with ASIL D compliance, the TI sets a benchmark for the industry to follow.” “The implementation of wireless battery management systems will be a growing trend in the EV marketplace, because these advancements provide greater flexibility of design while also lowering the complexity and cost relative to traditional systems,” adds Asif Anwar, director of the powertrain, body, chassis and safety service at Strategy Analytics Inc. ![]()
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