Using Ultracaps in Cars: the Definitions, Part II

Our previous post focused on the technical terminology associated with ultracapacitors in the automotive space. Now, armed with that knowledge, we’ll get into the specifics of the types of technology in hybrid and electric vehicles.

Did you know that there are four variations of “micro-hybrid” cars alone? Read on for the differences between each, and answers to all your other questions about these vehicles.

Like this post? Let us know on Twitter at @ioxus.

Micro-Hybrid: term using to define a vehicle that employs technology to enable a modest reduction in CO2 emissions and fuel consumption. The technology employed is often a “start/stop” system, in which, when the car comes to a halt, the engine is shut down and re-starts only when the driver activates the accelerator. The engine re-starts by the alternator, which is powered by the car’s energy storage system, which receives a small boost charge from the vehicle’s alternator or from energy captured during the regenerative braking process.

Light Micro-Hybrids: typically sub-compact and compact cars that offer limited stop-start functionality and don’t have regenerative braking. The current energy storage system of choice for light micro-hybrids uses enhanced flooded lead acid batteries or a small ultracapacitor bank.

Medium Micro-Hybrids: range from sub-compact through full-size cars that offer greater stop-start functionality and may offer limited regenerative braking. The current energy storage system of choice for medium micro-hybrids employs advanced AGM batteries or a pairing of ultracapacitors and an AGM.

Heavy Micro-Hybrids: typically mid-size and full-size cars that offer the highest level of stop-start functionality, take full advantage of regenerative braking and implement other fuel economy innovations. Because of their extreme power demands, heavy micro-hybrids need better performance than the best AGM batteries can offer, so ultracapacitors are required to support the energy storage system.

Parallel Mild-Hybrid: uses the “start/stop” system employed in a micro-hybrid, as well as an electric motor to supplement (power assist) the engine during acceleration. The electric motor cannot power the car alone and instead uses an energy storage system charged either by regenerative breaking or by the engine slightly over-performing at cruising speed.

Series Mild-Hybrid: an electric motor, charged by a petrol engine or during deceleration, powers the system.

Full Hybrid: the most sophisticated of all hybrid systems, full hybrid cars can be powered by just the electric motor, the combustion engine or by both. Normally, when starting and driving at low speeds, the car is silently powered by the electric motor only, and there are no CO2 emissions produced and no fuel used. The combustion engine takes over at higher speeds and, when needed, the electric motor provides extra power. A full hybrid system selects the most appropriate power source and captures much more energy through regenerative braking to charge the energy storage system. The captured energy powers the one or more traction drive electric motors in the car.

Plug-in Hybrid Electric Vehicle (PHEV), Plug-In Hybrid Vehicle (PHV), Plug-In Hybrid: interchangeable terms for a hybrid vehicle that uses rechargeable batteries or another energy storage system to power the car. To restore to full charge, the vehicle must be connected to an external electric power source. These vehicles share characteristics of a conventional hybrid electric vehicle, as they have electric motors and an internal combustion engine.

Full Electric Vehicle (EV): uses one or more electric or traction motors for propulsion. Two main types of electric vehicles exist: those that are powered by electricity stored in an energy storage system charged from an external power source and those that are powered by an on-board electrical generator, such as a hydrogen fuel cell.

icon_newsLatest News

  • Ioxus uSTART® Battery Replacement for Heavy Equipment Increases Starting Reliability

    ONEONTA, N.Y., April 2, 2019 /PRNewswire/ -- Ioxus, Inc., a leading developer and manufacturer of ultracapacitors and energy storage products, announced today that the 24V uSTART® battery support system is now being offered as the heavy equipment industry's only drop-in replacement product that needs no special wiring. Using two group 31 batteries in series, with one 24V uSTART in parallel, users can replace their 4D battery in heavy equipment.

    The ultracapacitor-based product is designed with smart power electronics to assist in starting engines up to 50L for large off-road equipment.  Using the available Smartphone Bluetooth app, once the uSTART is connected to the batteries, users can look at the voltage of the batteries, the charge level of uSTART, initiate a jump start without connecting any wires, or put the unit into maintenance mode for safe removal or repairs.

    The goal of the uSTART system is to provide the vehicle with a start, no matter the condition of the existing batteries or external temperature. If the batteries run too low duread more...

©2019 IOXUS Inc | 18 Stadium Circle, Oneonta, NY 13820 • 877-751-4222 • 607-441-3500

Employee Log-in