48V Vehicles

Mild Hybrid 48V Vehicles 2016-2031

IDTechEX, Date of Publication: Jan 21, 2016, 159 Pages

Mild Hybrid 48V Vehicles 2016-2031

The comprehensive Executive Summary and Conclusions embraces market forecasts 2016-2031 for 48V systems in cars and for the different types of electric car which compete with 48V systems to replace conventional cars. For clarity, many infographics are presented. This is analysis by experts not simply a consolidation of information out there. The new, original figures for the addressable market for 48V cars is plotted alongside the figures likely to be achieved for this period. The 48V technology roadmap is put in context by overall electric vehicle technology trends in infographics. Based on Volkswagen methodology, the four generations of 48V system are scoped in time this extra information from IDTechEx giving a wider opportunity than that normally addressed. For example, many forms of multiple energy harvesting and recuperation will be enabled.

There is then a Technology Analysis which includes a look at the synergy with 48V pure electric powertrains. The widening range of 48V parts being added to the basic 48V systems is investigated as they progress towards 48V alone. The relevance to small vs large cars and premium vs mainstream cars id clarified by year then the progress with the different building blocks is examined in depth. In particular, the reversible torque assisting motor generator is examined, comparing the different options being pursued such as permanent magnet vs switched reluctance synchronous and the option of asynchronous. Throughout, the views and forecasts of leading vehicle manufacturers and their Tier One suppliers is surfaced as well as those of the innovative small companies. The component analysis is thorough embracing, for example, lithium-ion vs Advanced Lead Acid batteries and what comes after them. Latest progress with the most significant collaborative programs is revealed and the proliferation of energy harvesting and recuperation options is studies in detail.

Vehicle emissions regulations for 2025 and 2030 are unlikely to be met by conventional vehicle technology as applied to most vehicles beyond small cars. Going to strong hybrid and pure electric powertrains involves considerable expense and delay and often totally new platforms. However, an intermediate technology has reached a very exciting stage where it can incrementally improve traditional powertrains by replacing the alternator with a reversible 48 V electric machine and adding a larger battery that is at 48V not the 12V of a car or 24V of a bus or truck though, for now, these is retained. Much more of the braking energy can be regenerated. The electric machine can provide torque boost, facilitating considerable downsizing and down-speeding of the internal combustion engine. Call it the 48V mild hybrid. Not only will it definitely allow all cars, trucks and buses to meet the impending regulations, it can be incrementally improved with new parts such as electric superchargers, pumps, aircon etc. The improvements - new forms of which are being announced all the time - permit the 48V mild hybrid to have increased acceleration, quiet start stop, near-silent electric take-off and other improved driver experiences stealing the clothes of strong hybrids, all at less than half the cost and effort.

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1.1. Why and What
1.2. Carbon dioxide reduction
1.3. First generation
1.4. Powertrain winners and losers 2016-2026
1.5. The technological heart
1.6. Company positioning: best solutions for market needs 2016-2030
1.7. Hype curve for car powertrains in 2016
1.8. When will it be entirely 48V?
1.9. Market Forecasts
1.9.1. 48V cars - forecasts, end game 2016-2031
1.9.2. Powertrain forecasts 2016-2031
1.10. Technology Roadmaps
1.10.1. Four generations 2015-2031
1.10.2. Other roadmaps putting 48V in context
1.10.3. IDTechEx technology timeline 2016-2026


2.1. Types of conventional and electric vehicle - two 48V opportunities
2.2. Synergy between 48V mild hybrids and 48V pure electric powertrains?
2.2.1. Voltage trends for pure electric vehicles: 48V opportunity
2.2.2. Voltage choices by powertrain
2.2.3. Heart of a 48V mild hybrid: popular starting point
2.2.4. The widening choice of 48v components
2.2.5. Engine downsizing and boosting
2.3. Safety
2.4. Suitability of 48V by car size over time 2017-2027 and 2031
2.5. Progress with the 48V building blocks
2.6. Future of 48v rotating machine technology
2.6.1. Evolution from stop-start to multifunctional rotating machines
2.6.2. Operating modes, design priorities
2.6.3. View of Continental: BAS
2.6.4. Construction options for reversible machines
2.7. Future of the DC DC converters
2.8. Project comparing 48V options: examples
2.8.1. Jaguar Land-Rover and Partners UK
2.8.2. LC SuperHybrid UK
2.8.3. Volvo Sweden, China
2.8.4. Hyundai Korea
2.8.5. US Department of Energy Civic Ultrabattery Road Test
2.8.6. ADEPT: one of the most significant 48V development projects worldwide
2.8.7. Healthy disagreement about system functions and components
2.9. Batteries for 48V mild hybrid
2.9.1. Overview
2.9.2. 48V Battery choices
2.10. 48V superchargers
2.11. Flywheel KERS
2.12. Future 48V motor controllers
2.13. Energy harvesting including regeneration
2.13.1. Vehicle fuel wastage by origin - target of regeneration
2.13.2. Energy harvesting choice for vehicles


3.1. Lessons from 48V event Dusseldorf Germany 24-26 Nov 2015
4.1. Ongoing interviews by IDTechEx
4.2. ALABC/ILA London 13 Feb 2016
4.3. Visit to Controlled Power Technologies CPT Ltd UK 18 January 2016


Date of Publication:
Jan 21, 2016
File Format:
PDF via E-mail
Number of Pages:
159 Pages
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