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High Voltage Coolant Heater Sizing for EVs
High Voltage Coolant Heater Sizing for EVs: Flow, Temperature and Power A high voltage coolant heater is sized right when three things…
Electric Bus BTMS Service Access: An OEM Packaging Checklist
A battery thermal management system (BTMS) can fit the vehicle drawing and still be difficult to service. Before releasing the packaging design,…
High Voltage PTC Heater Selection Guide for EVs
Picking a high-voltage PTC heater starts with the heating task, not the kilowatt rating. Define what the battery system needs — preheating,…
How to Shortlist an Electric Bus BTMS Supplier
An electric bus battery thermal management system (BTMS) supplier should be able to explain how its proposed unit will work on your…
NTC Temperature Sensing and HVIL: The Safety Loop Inside a Braking Resistor
A review of the integration of a braking resistor tends to get bogged down in the same three questions. They seem straightforward,…
Battery Pack Thermal Management: An Interface Checklist for Commercial EV Buyers
Battery pack thermal management is most effective when the battery supplier and vehicle team agree on the boundaries before they compare equipment.…
Brake Chopper Faults on an Electric Bus: Diagnose the Switch Before You Replace It
Intro (no heading — first paragraphs as plain paragraphs) These types of support calls usually follow a similar pattern: a bus breaks…
Choosing a PTC Coolant Heater for a Battery Thermal Management System
A practical interface and procurement checklist for selecting a PTC coolant heater for a battery thermal management system.
What specification of battery thermal management system (BTMS) does your electric bus require? 3 kW, 5 kW or 12 kW?
We receive enquiries of this kind every week, often consisting of just a single line: ‘12-metre electric bus, requires a battery thermal…