Electric Vehicle Traction Motors, Belt Driven & Integrated Starter Generators 2016-2026 : Boost Recuperation Machines, Motor Generators, BSG, ISG For 48V MH, Strong Hybrid, Pure Electric, EIV: Land, Water, Air
NEW YORK, Nov. 14, 2016 /PRNewswire/ -- The choice of electric vehicle technologies is widening. It now spans from 48V mild hybrids to Energy Independent Vehicles EIV, all tending to use two or more rotating electrical machines and controllers instead of one. Because those electrical machines act as motors and generators in many different propulsion roles, they are increasingly complex taking more of the burgeoning electric vehicle value market -growth on growth. Only here is this big picture based on a host of global visits, interviews and analysis in late 2015 and mostly in 2016. As vehicles electrify to meet new emissions laws and improve economy and function there are added issues of cost, reliability, life and integration of the now more-complex rotating electrical machines REMs needed. Electricity handled is usually up at least fourfold. These REMs are increasingly doubling as both motor and generator in an increasingly versatile manner. As a motor this can mean driving the wheels or propeller and both starting and boosting a downsized and downspeeded fuelled engine where there is one. As a generator it may be making electricity from the rotation of the engine and regenerative braking. It may also be receiving electricity from suspension and other recuperation and from energy storage, stopping, starting, boosting the engine with extra power when needed - a far more punishing regime than the traditional traction motor encounters though there is plenty of market for them as well. We explain the seven reasons for more than one REM per vehicle. Integrating other functions is another trend we analyse such as merging with power electronics and gearing, often in-wheel or in-propeller. REMs are now providing electricity for a rapidly increasing number of on-board devices as they proliferate and as existing devices are electrified for better efficiency, control, versatility and safety. Voltage trends in EVsThese trends alter the value chain. It becomes tougher to sell just the motors. Markets open up for new devices. Developers have already taken $50 million at a time for proven new REM technologies. Vertical integration increases in the supply chain. It makes these systems a larger part of the cost of the vehicle and makes them contribute more to performance, consumer proposition and emission reduction so OEMs and Tier One suppliers are keener to create and own the IP and more is invested in development.Flatter, smaller and/or more-efficient designs and smaller, cooler fuelled engines (or none at all) in the vehicles will reduce the cooling requirements. In a given REM system, mechanical parts become less of the cost and performance and electronics become more.