Electromagnetic compatibility

Example

Use in Lemonergy

Separate quantities from encoding and transport.

This is a reference concept. No executable Lemonergy block has been verified for this term.

Connected concepts

Related concepts from the knowledge graph. Connections show context, not cause and effect. Hover or focus a linked term for its definition.

Battery management system

The electronics and software that keep a battery inside its safe window: measuring every cell voltage and many temperatures, estimating SOC and SOH, balancing cells, computing current limits, controlling the contactors and reporting over the vehicle network.

EMI filter

A network of inductors and capacitors, typically common-mode chokes with X and Y capacitors, that stops high-frequency noise travelling along cables. Inverters, chargers and DC/DC converters need them to pass compatibility tests; on high-voltage lines the Y capacitors to chassis also store energy and pass touch current, which safety standards limit.

IEC 61000-6-2 and 61000-6-4

The IEC generic EMC standards for industrial environments: 61000-6-2 sets immunity to electrostatic discharge, bursts, surges, radiated and conducted RF and voltage dips, and 61000-6-4 limits emissions. They apply when no product-specific EMC standard exists, and battery-operated apparatus in industrial locations is explicitly within their scope.

Inverter

The power electronics that turn the battery’s DC into AC for a motor or the grid, and back again for charging. In stationary storage it is called the power conversion system and its rating in kW or MW sets the system’s power independently of the battery’s energy.

UN Regulation No. 10

The UNECE electromagnetic-compatibility regulation for vehicles and their electronic sub-assemblies. A BMS or charger must show it neither emits interference nor fails under it, including while the vehicle is charging from the grid.

Wiring harness

The bundle of cables, connectors and fixings that carries power and signals through a pack or vehicle. High-voltage cables outside an enclosure must have an orange covering under UN R100; the low-voltage harness carries cell-sense lines, CAN, HVIL and supply. Chafed wires and fretted connector pins cause many field faults.

References & further reading

Further reading on this topic

These sources provide broader context; they are not presented as citations for every statement in this entry.

1. 3rd generation of the CAN data link layer

   CAN in Automation, CAN Newsletter · 2020

   Topic background · Classical CAN, CAN FD and CAN XL data-link concepts; publication describes the 2020 state.

2. Getting Started with the BQ76925

   Texas Instruments · 2019

   Topic background · A concrete BMS analog front-end example: cell voltage, current, temperature measurement and MCU integration.