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48V

[Due to the increasing size of the archives, each topic page now contains only the prior 365 days of content. Access to older stories is now solely through the Monthly Archive pages or the site search function.]

Audi moving ahead with 48V system in vehicles; mild hybrids

August 25, 2014

Audi will upgrade part of its vehicle electrical system from 12 to 48 volts. The move represents another technical building block for facilitating the integration of new automotive technologies while increasing the power and efficiency of its cars.

Audi recently showcased the scope of the 48-volt electrical system with the two technology demonstrators Audi A6 TDI concept and RS 5 TDI concept. (Earlier post.) Both models are fitted with an electrically powered compressor. This operates independently of the engine load and therefore fundamentally improves the acceleration performance. 48-volt technology is also suited for realizing convenience systems for dynamic chassis control. Audi will shortly be unveiling a variety of applications in this field.

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Two Audi TDI technology studies with electric biturbo, 48V electrical systems; both technologies to go into series production

July 17, 2014

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V6 TDI bi-turbo with electric compressor. Click to enlarge.

Audi has built two technology studies with the “electric biturbo” technology it is developing (earlier post): the Audi A6 TDI concept is equipped with a new 3.0 TDI monoturbo (i.e., a single turbo with supplementary electric compressor), while the Audi RS 5 TDI concept with a 3.0 TDI biturbo (two in-series turbochargers with supplementary electric compressor).

The electric biturbo system comprises a classic exhaust turbocharger (mono- or bi-turbo) working together with a supplemental, electric-powered compressor arranged in series and powered by a separate 48-volt electrical system. Instead of a turbine wheel, it contains a small electric motor that applies a maximum drive power of 7 kW to accelerate the compressor wheel to maximum speed within 250 milliseconds.

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GTI and Haldor Topsøe report successful operation of $35M pilot plant for converting woody biomass to gasoline; vehicle testing starting

May 30, 2014

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Pilot plant integrating Carbona gasification with TIGAS syngas-to-gasoline process. Click to enlarge.

In a recently completed project, Gas Technology Institute (GTI) worked with Haldor Topsøe, Inc. on an integrated biorefinery to make renewable “drop-in” gasoline. The use of renewable gasoline could reduce lifecycle greenhouse gas emissions by approximately 92% when compared to conventional gasoline.

The almost $35-million pilot-scale project, supported by the US Department of Energy (DOE) integrated biorefineries program ($25 million from DOE, $9,771,659 cost-share), converted woody biomass into bio-derived gasoline by fully integrating and optimizing biomass gasification and syngas cleanup steps with a unique process to turn syngas into gasoline. (Earlier post.)

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Lux: 48 V micro-hybrid market will pass 7M vehicles in 2024; promising for LTO Li-ion batteries

May 26, 2014

According to a new forecast by Lux Research, the likely 48 V micro-hybrid market will exceed 7 million vehicles in 2024, with the first adoption year beginning in 2015 and more focused on premium vehicles, in which cost sensitivity in order to reach regulation targets without sacrificing performance is lower.

Europe will lead global demand with 2.6 million units sold in 2024, followed by the US and China. With 1.6 million units, China will be the third-largest market for 48 V micro-hybrids despite having a more attractive total cost of ownership than 48 V micro-hybrids sold in the US. This is due to stricter long-term regulations in the US as well as a greater need to ramp up fuel efficiency to catch up to regulations, Lux said. Europe will lead all other key markets in terms of adoption percentage, with 48 V micro-hybrids representing 11% of all vehicle sales in 2024, according to the forecast.

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Li-ion maker A123 Systems sells Energy Solutions business to NEC for ~$100M; focus on micro-hybrids and transportation

March 24, 2014

A123 Systems LLC, a developer and manufacturer of advanced Nanophosphate lithium iron phosphate batteries and systems, is selling its grid storage business and other assets related to energy storage for telecom and IT data storage applications to NEC Corporation for approximately $100 million.

A123, which is retaining its all of its existing cell manufacturing and sales, research and development, and automotive operations, is increasingly focused on the transportation market with a particular emphasis on micro-hybrids (earlier post). NEC will incorporate the former A123 Energy Solutions Business into a new “NEC Energy Solutions” company, which will begin operation in June 2014.

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Johnson Controls and Fraunhofer Gesellschaft collaborate on next-gen cooling systems for Li-ion battery packs; focus on 48V micro-hybrid system

March 20, 2014

Johnson Controls and Fraunhofer Gesellschaft have signed a collaboration agreement to develop the next generation of more energy efficient, cost-effective cooling systems for vehicle batteries. The scope of the work will initially focus on 48V Micro Hybrid battery technology, which is designed to deliver strong fuel and emissions efficiency, and load management at a lower price than hybrid and electric vehicle technology. (Earlier post.)

Scientists and engineers at Johnson Controls will work with both Fraunhofer’s Institute for Environmental, Safety and Energy Technology (UMSICHT) and with its Institute for Manufacturing Technology and Advanced Materials (IFAM).

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More details on Mitsubishi’s three hybrid concepts: two PHEVs and one 48V mild hybrid

March 06, 2014

Mitsubishi Motors (MMC) is showcasing its three new hybrid drive concepts—two plug-ins and one 48V mild hybrid—at the Geneva Motor Show. The three vehicles were introduced earlier at the 2013 Tokyo Motor Show (earlier post).

Concept GC-PHEV. Concept GC-PHEV (for “Grand Cruiser”) is a next-generation full-time 4WD full-size SUV, fitted with an advanced plug-in hybrid electric (PHEV) powertrain. Applying Outlander PHEV’s engineering fundamentals to a much bigger, more powerful, all-terrain (where legal) high-end full-size SUV, Concept GC-PHEV develops plug-in hybrid electric powertrain technology further.

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CPT presenting two papers at SAE World Congress on SpeedStart and TIGERS for 48V mild hybrid systems

February 18, 2014

Controlled Power Technologies (CPT) will deliver two technical papers at SAE World Congress in April on its SpeedStart torque assist and kinetic energy recovery system (earlier post) and TIGERS turbine integrated gas energy recovery system (earlier post) for 48V mild hybrid vehicles.

The switched reluctance (SR) motor-based SpeedStart and TIGERS technology are being incorporated into the recently announced Advanced Diesel Electric Powertrain project known as ADEPT. (Earlier post.) ADEPT combines the two technologies, which have been demonstrated individually but not yet as an integrated system, applying the low voltage concept of ‘intelligent electrification’ for the first time to a diesel car. For the ADEPT project, the consortium comprises CPT, the European Advanced Lead Acid Battery Consortium (EALABC), Faurecia Emissions Control Technologies, Ford and the University of Nottingham. The management of the project is being handled by Ricardo.

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Kia to display coming 48V mild hybrid system at Geneva; lead carbon battery

February 13, 2014

As well as showcasing the new Soul EV (earlier post) and refreshed Optima Hybrid at the upcoming Geneva Motor Show, Kia will display a standalone exhibit of a new 48V mild hybrid technology, developed by the brand’s European R&D center for use in future Kia models.

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Schaeffler demo vehicle hits 2020 CAFE targets without electrification; 15% cut in fuel consumption; 48V hybrid system for 2025

January 27, 2014

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Schaeffler Efficient Future Mobility North America demo vehicle in Detroit. Click to enlarge.

At the North American International Auto Show (NAIAS), Schaeffler highlighted its range of fuel-efficiency technologies and systems in the form of its current demonstration vehicle: Efficient Future Mobility North America. Based on the current version of a popular mid-size SUV, the demonstration vehicle achieves the limit values specified by the CAFE standard for 2020 with no additional electrification of the powertrain.

The use and optimization of a range of Schaeffler technologies allowed the vehicle’s fuel consumption to be reduced by 15%. These values were initially simulated using Schaeffler calculation programs and verified by Schaeffler’s experts in North America using measurements and test cycles, and then certified by an independent testing institute.

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Navigant: sales of LDVs with 48V subsystems will reach nearly 13.5M units annually by 2023

January 08, 2014

Navigant Research is forecasting a slow start through the end of this decade but then a quick ramp from 2020 to 2023 for light-duty vehicles with 48V electrical subsystems, with sales reaching nearly 13.5 million worldwide by 2023.

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Johnson Controls introducing first-generation 48V Micro Hybrid battery at Frankfurt show (fuel economy benefit corrected)

September 11, 2013

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The first-generation 48-volt Lithium-ion Micro Hybrid battery has the potential to enable up to 1% fuel savings in vehicles. Click to enlarge.

Johnson Controls unveiled its first-generation 48-volt Lithium-ion Micro Hybrid battery (earlier post) at the International Motor Show (IAA) in Frankfurt, Germany. The company had shown demonstration modules earlier in the year at the Detroit Auto Show and the Hannover Messe.

Leveraging a dual voltage architecture, Johnson Controls’ Micro Hybrid battery system will involve a 12-volt lead-acid starter battery and a 48-volt Lithium-ion battery that enables optimization of energy generation and consumption. The Micro Hybrid technology has the potential to provide up to 15% fuel savings in vehicles and is available for testing with key automotive customers this December.

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Continental presents new “48 Volt Eco Drive” system; orders received and production begins in 2016

September 10, 2013

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Components of the 48 Volt Eco Drive system and the demonstrator. Click to enlarge.

Continental presented its new “48 Volt Eco Drive” system at the Frankfurt Motor Show. The new system supplements the traditional 12V electrical network with a 48V electrical system and components, bridging the gap between low-end hybridization based on present-day 12V start/stop systems and more sophisticated high-voltage hybrid solutions.

Installed in a demonstrator vehicle, the 48 Volt Eco Drive system offers NEDC fuel savings of around 13%. First orders have been received, and production will begin in 2016, according to José Avila, Head of the Powertrain Division and Member of the Continental Executive Board.

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ADEPT project to apply gasoline engine HyBoost system to diesel; 48V architecture; full hybrid fuel economy at much lower cost

September 04, 2013

The developers of the successful gasoline-engine HyBoost project (earlier post)—Ricardo, Ford Motor Company, Control Power Technologies (CPT) and the European Advanced Lead Acid Battery Consortium (EALABC)—will be joined by Faurecia Emissions Control Technologies UK Ltd and University of Nottingham to apply the intelligent electrification concept for the first time to a diesel vehicle (a Ford Focus).

The Ricardo-led Advanced Diesel Electric Powertrain (ADEPT) project will apply 48V “intelligent electrification” concepts, mild hybridization and waste heat recovery in a Ford Focus diesel demonstrator. The project aims to deliver full hybrid equivalent fuel economy and performance with less than 70 g/km CO2 emissions as measured over the European Drive Cycle, but at a significantly lower cost.

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