• News aggregator on electric cars and electric vehicles (cars, motorcycles, boats, planes).

Tata Passenger Electric Mobility launches its first Pure EV architecture – ‘acti.ev’


Tata Passenger Electric Mobility (TPEM), have introduced its first advanced Pure EV architecture – acti.ev (pronounced as active). acti.ev stands for (Advanced Connected Tech-Intelligent Electric Vehicle).
The acti.ev architecture is based on the key pillars of Performance, Technology, Modularity, and Space Efficiency and consists of four layers: Read more…

Modular plug-and-play rectifier


OmniOn Power has developed a modular 30 kW rectifier in a 19 in rack format to build EV fast chargers (writes Nick Flaherty).
The EV100H3NK and EV101H3N1K AC-DC variants of the rectifier design have efficiencies of up to 96% and integrate CAN automotive comms protocols. Up to 12 rectifiers can be used in parallel in a 19 in rack to build fast-charging 360 kW systems quickly and easily. Read more…

Mini-spoiler alert for faster flight


Researchers at the University of Bath are investigating how deploying spoiler-like devices called mini-tabs could help electric aircraft fly faster (writes Nick Flaherty).
Mini-tabs can counteract the damaging vibrations caused by whirl flutter that occurs at high flight speeds. Maxon has provided the motion systems to test the effectiveness of the mini-tabs on a novel wind tunnel test rig. Read more…

Improving power electronics


Nick Flaherty reports on how semiconductor r&d is leading to more efficient and powerful electronic switching solutions for e-mobility
Power devices for e-mobility come in a range of technologies to boost performance and efficiency. Insulated gate bipolar transistors (IGBTs) made from silicon have been the original power switch for decades; they are robust and low cost but can only switch at frequencies of around… Read more…

Extinguishing lithium battery fires


Our battery show report in this issue contains stories on various materials engineered to prevent a thermal runaway in a cell in a lithium-ion pack from spreading and cause a major fire (writes Peter Donaldson).
Prevention is better than cure because, rare though they are, thermal runaways in EV lithium-ion batteries contain all four elements of the ‘fire tetrahedron’ – heat, oxygen, fuel and a chemical reaction – making them notoriously hard to extinguish. Putting them out is far from impossible, however. Read more…

Motor control


Nick Flaherty explains the various ways to create the perfect sine wave to maximise the efficiency of electric motor control
Improving the efficiency of e-mobility motor control is a key focus for developers. Design technologies to squeeze the last microamp out of the battery can boost the range of EVs significantly, while improving the efficiency of the motor control can reduce losses, cutting the amount of thermal management needed and so reducing the complexity and weight of a motor. Read more…

Structural carbon fibre research


Researchers at Chalmers University in Sweden have shown how the manufacturing of carbon fibres can be tailored for developing structural batteries (writes Nick Flaherty).
They worked with Carbon Nexus at Deakin University, in Australia, to build a variety of fibres that are strong enough to use in vehicles but can also store significant amounts of energy.
However, the properties of the carbon fibre vary depending on the process parameters and which precursor is being used. Some types of carbon fibre can be very stiff, but have a far too low a storage capacity, and vice versa. Read more…

Comau and Lina Energy unveil solid-state battery manufacturing system


Comau and Lina have designed a scalable manufacturing solution for solid-state sodium-metal-chloride batteries. The design allows solid-state sodium battery supplier Lina to automate its battery production process.
Comau and LiNa engineers designed the enclosure and handling equipment for the specific components of solid-state batteries, as well as to identify and integrate commercially available equipment, including Comau’s cleanroom-classified, high-speed Racer-5 articulated robots, into the design. Read more…

Burger Group launches actuators for thermal management


Automotive products developer Burger Group has developed a range of electromechanical valve actuators for tackling the specific requirements of controlling active thermal management systems in vehicles (writes Rory Jackson).
Stefan Schafer, the company’s business development manager, says, “I’ve been working in thermal management for about 10 years now. Based on trends I’ve seen in the industry, EV OEMs are moving towards these kinds of modules for coolant, refrigerant or both. They are being engineered with a rising count of valves for delivering fluid to critical points of thermal concern, be it in battery packs, power electronics, HVACs and so on. Read more…

Suncar ZE150W excavator


This excavator’s developer has taken electrification to a new level, as Peter Donaldson explains
Environmental legislation is providing the pressure for the development of electrified construction machinery such as the new Suncar/Hitachi ZE150W excavator. This 15 t-class vehicle pushes electrification a little further than most conversions, making use of some high-powered electro-hydraulic (EH) linear and electric rotary drives where many are more conservative and stick with the original hydraulics. Read more…

Detectors do more using less


Nisshinbo Micro Devices has launched two voltage detectors that are designed to provide higher accuracy in ECUs and BMSs using fewer components (writes Nick Flaherty).
When monitoring high voltages, it is crucial to consider the drawbacks of using traditional low-voltage detectors with an open drain output. The NV3600 and NV3601 series detectors reduce the need for additional resistors to divide the monitored voltage and pull-up resistors at the output. Read more…

Lotus launches EV charging solutions


Lotus has launched its own EV charging solutions including an ultra-fast DC charger, power cabinet and a modular unit for charging up to four vehicles at once.
The EV charging solutions include a liquid-cooled all-in-one DC charger that offers charging of up to 450 kW. For example, with the Lotus Eletre R, it can add up to 88.5 miles or 142 km of range after about 5 minutes of charge. A 10-80% charge can be achieved in 20 minutes to give a range extension of 74 miles or 120 km from a 5 minute charge. Read more…

The Battery Show report


Peter Donaldson gives his round-up of the products on display at this show, where the focus was on tackling thermal issues
This year’s Battery Show North America and Electric & Hybrid Vehicle Technology Expo, held in Novi in Michigan, had if anything an even greater emphasis on battery safety than usual, with many innovations aimed at stopping a thermal runaway in its tracks, as well as on thermal management. Read more…