SENSOR SOLUTIONS
CURRENT SENSORS
Redefine how you perceive electrical currents with our precision Current Sensors. Gain accurate real-time data, enhance safety, and empower your systems with the crucial information needed to make informed decisions. The future is connected, electric and autonomous. With our high-precision, shunt-based current sensors, you create the perfect conditions for precise current measurements, demand-oriented monitoring and reliable battery management that makes the future safe.
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Q-SMART LIGHT
The smart solution for cost-effective current measurement.
Intelligent and digital, the Q-SMART LIGHT offers smart functions for
high-precision current measurement based on ASIL-B. It communicates with the battery management system via CAN bus to determine the State of Charge (SOC) and enables highly integrated measurements in automotive and storage systems at a competitive price point.
Automotive 4-pin connector
Digital signal transmission via CAN2.0 interface
Safety Element out of Context (SEooC, ASIL-B)
Measurement accuracy of < 0,5 %
Current measurement range of +/- 2000A
Advanced integrated temperature compensation
Q-SMART
The plus of smart functions with the highest level
of safety.
Intelligent and digital, the Q-SMART combines smart functions for high-precision current measurement based on ASIL-D, the highest level of functional safety. It communicates with the battery management system via CAN bus to determine the State of Charge (SOC) and enables highly integrated, redundant measurements in automotive and energy storage systems at the highest safety level.
Automotive 4-pin connector
Digital signal transmission via CAN2.0 interface
Safety Element out of Context (SEooC, ASIL-D)
Measurement accuracy of < 0,5 %
Current measurement range of +/- 2000A
Advanced integrated temperature compensation
Available in different housing options (horizontal and vertical connection)
Q-SMART NEXT
The next generation of smart current measurement.
The Q-SMART NEXT takes current measurement to the next level by integrating advanced features such as HV measurement, pyro ignition, isolation monitoring, and reinforced insulation up to 1500 V.
This cutting-edge technology provides unparalleled accuracy and safety
in battery management systems and HV batteries.
Current measurement, HV measurement, pyro ignition, isolation monitoring
Reinforced insulation for system voltages of up to 1500 V
Safety Element out of Context (SEooC, ASIL-D)
Current measurement accuracy of < 0,5 %
Current measurement range of +/- 4000A
ME TEDD
ME TEDD - THERMAL EVENT DETECTION DEVICE
The ME TEDD Range integrates a diverse array of sensors designed to enable precise detection of thermal events. Available with ISO262626 ASIL B safety ratings TEDD is the most advanced standalone thermal event sensor on the market. Through a multi sensor approach TEDD provides faster reaction time, reduced chance of false positives and increased redundancy for modern battery applications.
ISO 6469-1
THERMAL RUNAWAY
A thermal event starts small — but escalates fast. ISO 6469-1 defines two stages every BMS must guard against:
THERMAL RUNAWAY (TR)
An uncontrolled, self-heating chain reaction inside a single cell. Once triggered, internal temperatures can spike by several hundred °C within seconds.
THERMAL PROPAGATION (TRP)
Heat transfers from the failing cell to its neighbors, triggering their runaway in turn — a chain reaction that can engulf the full pack.
DETECTION & WARNING
WHY TIMING MATTERS
Occupants must be warned early enough to exit safely. Global regulations are converging on strict response windows:
ISO 6469-1
Defines thermal event & propagation — no fixed timing requirement
>5 MIN
UN ECE R100 — minimum warning time after onset of thermal runaway
5 MIN / 2 HR
GB 38031 — no smoke ingress for 5 min; no fire or explosion for 2 hours
ME TEDD is designed to help meet — and beat — these detection and warning windows.
EARLY DETECTION
THERMAL EVENT SIGNAL TIMELINE
Voltage, temperature, and gas signals all move together — but not at the same moment. Reading them in combination is what makes early, reliable detection possible.
Illustrative signal pattern, adapted from published thermal-runaway & cell-venting studies (NASA; gas-sensor venting-response literature). Absolute timings vary by cell chemistry, format, and abuse type.
THE SOLUTION
INTRODUCING ME TEDD
ME TEDD (Thermal Event Detection Device) is a compact, independent sensor module for early thermal event warning - sold standalone, or packaged with the ME BMS range across the Barcelona platform, 48V - 1500V.
STANDALONE OR PLATFORM PACKAGE
Works alone, or across the entire Barcelona BMS range
INDEPENDENT DETECTION CHANNEL
Decoupled from cell monitoring electronics
MULTI-SOURCE CONFIDENCE
TEDD signals cross-checked with cell voltage & module temperature
PRODUCT OVERVIEW
KEY FACTS
MEASUREMENT CAN INTERFACE
Connects to the ME BMS via CAN / CAN FD
INTEGRATED MULTI-SENSING
Pressure, hydrogen (H2), and humidity & temperature in one module
BMS-SUPPLIED POWER
One TEDD per BMS controller, powered via its sensor-supply output
ASIL B SAFETY CONTRIBUTION
ASIL B-rated H2 & pressure sensors with safety-microcontroller diagnostics
TECHNOLOGY
HOW IT DETECTS
Three complementary sensing technologies work together inside every ME TEDD:
PRESSURE
Detects thermal events through pressure gradients building up inside the pack.
HYDROGEN (H2)
Gases escape and travel faster than heat — an early, independent detection path.
HUMIDITY & TEMPERATURE
Rising humidity and temperature provide additional early-warning indicators.
TECHNOLOGY
ALWAYS ON PROTECTION
FUNCTIONAL SAFETY
TEDD contributes to an ASIL B thermal-event-detection safety goal, and can reach ASIL B on its own as a Safety Element out of Context (SEooC) — sellable standalone, independent of the rest of the BMS.
ACTIVE
Driving, Charging, Balancing
BMS & TEDD fully powered and communicating
All sensors available and plausibility-checked
Pre-warning on venting, then TR detection, then immediate safe-state response
SLEEP
BMS off
Cell protected against misuse by open contactors
Periodic — or externally triggered — BMS wake-up
TEDD checks sensor values on each wake cycle, then returns to sleep
APPLICATION
SYSTEM ARCHITECTURE
TEDD plugs directly into the ME BMS signal chain — one module per BMS controller:
CMB
All three signals are arbitrated together, so a single sensor spike never triggers a false alarm, only a corroborated pattern does.
ME BMS CONTROLLER
TEDD
ACCURACY
Barcelona platform · 48V–1500V
TECHNOLOGY
ALWAYS ON PROTECTION
TEDD contributes to an ASIL B thermal-event-detection safety goal, and can reach ASIL B on its own as a Safety Element out of Context (SEooC) — sellable standalone, independent of the rest of the BMS.
PREVENTION
Keep every cell within its safe temperature, voltage, and current window — handled upstream by the BMS control loop.
SAFETY GOAL
DETECTION
Catch a thermal event if one occurs anyway, and warn before it becomes hazardous — this is where TEDD operates.
“Detect a thermal event and inform external systems.” — ASIL B
Achieved using ASIL B-rated H2 and pressure sensors, a safety microcontroller, and sensor-level diagnostics — enough for TEDD to reach ASIL B on its own as a Safety Element out of Context (SEooC), sellable independent of the rest of the BMS.
WHY ME TEDD
BENEFITS
INDEPENDENT SAFETY CHANNEL
ASIL B, sellable standalone as a Safety Element out of Context (SEooC)
SEAMLESS BMS INTEGRATION
One module, one CAN interface — standalone or across the Barcelona platform
ALWAYS-ON COVERAGE
Active and sleep-mode detection — no blind spots in operation
MULTI-SENSOR CONFIDENCE
Pressure, H2, and humidity/temperature cross-checked against cell data
