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Recent Hybrid Braking Complaints Highlight Regenerative Braking Design Issues

Green Car Congress

Right: 2004-2009 Toyota Prius (THS-II). A typical electrohydraulic braking system is designed so that it can function as a purely hydraulic system if current to the system’s electrical circuits is interrupted. Comparison of regenerative/hydraulic (friction) braking ratios under normal braking. Left: 2001-2003 Toyota Prius (THS).

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2017 Nissan Leaf Renderings: How Conservative Will Design Be?

Green Car Reports

It''s long been acknowledged that the current Nissan Leaf electric car is a radical and distinctive design, just as the landmark 2004 Toyota Prius hybrid was. But some portion of potential buyers, who may be amenable to the benefits of driving a battery-electric vehicle, won''t consider the Leaf because of its "weird" looks.

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BluE Nexus’s first eAxle adopted on Toyota’s bZ4X EV

Green Car Congress

Furthermore, top-class electric mileage has also been achieved through the optimal magnetic design of the motor, the joining technology to shorten coil ends, low-viscosity oil for the eAxle, and loss reduction technologies such as the new reverse-conducting IGBT (RC-IGBT).

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Michigan State University Receives $2.5M ARPA-E Award to Build Wave Disc Engine/Generator for Series Hybrid Applications

Green Car Congress

Swissauto Wenko AG of Switzerland produces a modern version of the Comprex—the Hyprex—designed for small gasoline engines. In axial-flow configurations, noted Müller and co-authors in a 2004 paper, pure scavenging is a challenging task. Source: Piechna, 2004. Earlier wave rotor implementation were mainly axial flow. Hîrceagã, M.,

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CRC ACES Phase 2 report finds emissions from modern heavy-duty diesels well below required levels

Green Car Congress

2010 engines emissions reduction relative to 2010, 2007, and 2004 US emission standards. earlier post ), found that emissions of NO 2 and other nitrogen oxides—which can have direct health effects and contribute to the formation of smog—were approximately 61% below the 2010 EPA standard and 99% lower than in 2004 engines.

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DOE awards $1.5M to Gentherm (Amerigon) for thermoelectric-based energy recovery system for heavy-duty vehicles; expands existing LDV program

Green Car Congress

Stack-designed cylindrical TEG, built with TE cartridges, developed for LDVs in first project. The DOE-funded Amerigon thermoelectric project originally began in 2004 as one of several projects targeting fuel economy improvements in light-duty vehicles of 10%. Click to enlarge. TEG & Exhaust System in Lincoln MKT. Click to enlarge.

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Small-displacement two-stroke H2 engine could address performance and emissions cost-effectively for recreational market; potential for Asian motor vehicle fleet

Green Car Congress

The two-stroke engine has been favored for small recreational vehicles because of its high power density, low cost and simple, lightweight design, Oh said. The lost available energy also results in poor off-design point fuel efficiency. A presently voluntary 5 Star designation would further halve that limit to 2.5

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