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futurenews

The FutureTech Auto Solutions Blog

Let's Get Technical: October 2016

10/21/2016

 

Electric Buses:  Hybrid Buses May Need to Step Aside

​In the late 1990’s and early 2000’s, hybrid bus systems were being developed at a feverish pace, based on low emission and higher fuel efficiency requirements from many major cities in the U.S. Market. However, as transportation technologies march forward, it appears that hybrid bus systems may experience serious competition from pure electric bus systems.  Many countries external of the U.S. are venturing into the zero emission vehicle (ZEV) market to improve air quality (i.e., China, Singapore, etc.) this is driving the need for bus fleets with ZEV systems.  Companies such as BYD and Proterra have quickly caught the eye of several U.S. cities that are shifting from traditional diesel powered buses directly to ZEV bus systems, eliminating the “in between step” of using hybrid technology.
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The reason that ZEV buses can be utilized is that Lithium battery technology has superior specific energy and energy density that reduces the size and mass (weight) of the battery pack system.  Therefore, enormous battery systems are not necessary for a bus system due to the advantages of Lithium technology.  This alters the need for large battery packs which may no longer be necessary for bus systems.  If high power wireless charging technology is placed on bus routes and in depot sub-stations to permit fast charging of the battery pack, large battery packs will no longer be necessary.  Also, logistics would be significantly easier because, requiring the bus to return to the main depot for charging would not be necessary.   While this is occurring on a global scale, keep in mind there are and will continue to be other technologies that will be considered for charging batteries along a bus route.  Overhead wire systems located only at bus stops or sub-depot locations can also be used to rapidly charge the batteries.  This would eliminate the need for modifying streets or roads when installing wireless charging pads.    

Picture

Author

Dr. Mark Quarto
Chief Technical Officer
FutureTech Auto

View my profile on LinkedIn

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  • Home
  • Training
    • Online On-Demand Electrified Vehicle Training
    • Training Sponsored by MACS Worldwide >
      • 5-Day Workshop: Being Profitable in Hybrid and Electric Vehicle Diagnostics & Service
      • Automotive Software & Electronics Fundamentals Boot Camp: Sponsored by MACS
    • Automotive Software & Electronics Boot Camps >
      • FUNDAMENTALS Boot Camp: Information & Registration
      • INTERMEDIATE Boot Camp: Information & Registration
      • Videos: Course Projects
      • Videos: From The Instructor and Boot Camp Developer
      • Reviews from Boot Camp Participants
      • Photo Galleries from Past Boot Camps
    • Vehicle Electrification Technical Training >
      • Electrified Vehicle Technologies Enhancements and Advancements Workshop
      • 5-Day Product-Specific Workshop: Nissan Leaf, the Hyundai Ioniq (EV), Mitsubishi Outlander PHEV, Tesla Model S & 3
  • Products
    • BATTSCAN High Voltage Battery Analyzer
    • NXTGEN: Hybrid, Electric, and Fuel Cell Diagnostic and Repair Solutions
    • FRESH JUICE: Aftermarket Replacement Hybrid and Electric Vehicle Batteries
  • About Us
    • Who We Serve
    • What Makes FutureTech Different?
    • Meet Our Instructors
    • Our Training Partners
  • Resources
    • Free Webinars in Vehicle Electrification Technology
    • Custom Hybrid Electric Vehicle Market VIO Report
    • Financing
    • Client Resources
  • Blog
  • Contact
    • General Inquiries
    • Email Newsletter Signup | FutureTech Auto
    • Submit a Purchase order or Request a Quote | FutureTech Auto