Marelli Launches Wireless Distributed Battery Management System For EVs

Marelli has pioneered a game-changing wireless BMS that eliminates complex wiring harnesses, slashing costs while boosting EV safety and performance. This innovation marks a fundamental shift in battery architecture design:

⚡ Core Technology Breakthrough

• Wireless daisy-chaining: Replaces physical wiring with deterministic wireless communication between battery cells

• Distributed architecture: Places micro-controllers directly on cell modules instead of centralized control

• Ultra-low latency: Achieves sub-1ms response time via proprietary 2.4GHz mesh network

• ASIL-D compliance: Meets highest automotive functional safety standards

🔋 Transformational Benefits

🚗 Real-World Impact

1. Extended battery life: Precise cell monitoring (±5mV accuracy) prevents overcharging/overheating

2. Range optimization: 0.5-2% energy recovery from balanced discharge

3. Crash safety: Eliminates high-voltage wiring short-circuit risks

4. Scalability: Adapts to any battery size (50kWh-200kWh) without redesign

🏭 Manufacturing Revolution

• Plug-and-play modules: Cut assembly time by 40%

• Predictive maintenance: Real-time cell health tracking

• Green production: Reduces copper usage by 12kg per EV

Industry Validation: Partnered with Analog Devices for chipset production; undergoing testing at two European luxury EV makers

Strategic Significance

Marelli’s wireless BMS solves four critical industry challenges:

• Cost reduction: Saves $120-$250 per vehicle

• Thermal runaway prevention: Isolates faulty cells 200x faster

• Packaging freedom: Enables structural battery integration

• Second-life batteries: Provides lifetime cell data for reuse grading

🔌 The Future: This technology paves the way for “cell-to-chassis” battery systems and solid-state battery adoption. Marelli expects 15+ OEM implementations by 2027.