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Chevrolet Bolt

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Not to be confused with Chevrolet Volt.
Chevrolet Bolt
File:See-through-white-2017-Chevrolet-BoltEV-024.jpg
Chevrolet Bolt see through image from Chevrolet
Overview
ManufacturerGeneral Motors
Productionscheduled to start in Oct 2016
Model years2017-
AssemblyUnited States: Orion Assembly Detroit, Michigan; Battery, motor, drive unit at LG, Incheon, South Korea
Body and chassis
ClassSmall car (B)
Body style5-door CUV
LayoutTransverse front-engine, front-wheel drive
PlatformGM Gamma G2SC
Powertrain
Engine150 kW (200 hp) permanent magnet motor/generator, torque 266 lb.ft./360 Nm
TransmissionElectronic Precision Shift, final drive ratio 7.05:1
Battery60.0 kWh lithium-ion, 288 cells, 96s3p
Electric range>200 miles (GM estimate pending final tests)
Plug-in charging120V, 240V AC, SAE Combo DC Fast Charge
Dimensions
Wheelbase2,601 mm (102.4 in)
Length4,166 mm (164.0 in)
Width1,765 mm (69.5 in)
Height1,595 mm (62.8 in)
Curb weight1,624 kg (3,580 lb)

The Chevrolet Bolt, also known as the Chevrolet Bolt EV, is an all-electric crossover developed by Chevrolet and is expected to be available for purchase in late 2016 as a model year 2017 vehicle.[1] The Bolt was previewed in production form at the 2016 Consumer Electronics Show, with further details released during the 2016 North American International Auto Show the following week.[2]

GM expects the Bolt to deliver more than 200 mi (320 km) of all-electric range of while having a cost to the consumer of about $30,000 (after a federal electric vehicle tax credit of up to $7,500). As of early 2016, this is more than double the range of any of the other electric cars available in the United States except for the Tesla Model S (which has a base price that's about twice as high) and the BYD e6 (only sold as a fleet vehicle).[3]

The Bolt will be manufactured at GM's Orion Assembly plant beginning in late 2016. The plant is receiving a US$160 million upgrade to support production of the electric car.[4]

In October 2015, General Motors revealed that they are purchasing the Bolt's batteries at a price of $145 per kilowatt hour from LG Chem, reportedly about $100 cheaper per kWh than the price LG was giving other customers at the time.[5][6]

GM says that the "nickel-rich lithium-ion" battery chemistry allows the cells in the Bolt to run at higher temperatures than the ones used in other cars. This helps reduce the cost of the vehicle since this allows a simpler and cheaper cooling system for the 60 kWh battery pack. The battery pack weights 960 pounds (440 kg) and is composed of 288 flat "landscape" format cells (similar in shape to cells used in other GM products, but in contrast to the cylindrical 18650 cells used by Tesla). Cells are bundled into a groups of three, and there are 96 groups across the pack.[7]

Other specifications include a 200 hp (150 kW) and 266 lb⋅ft (361 N⋅m) electric motor, acceleration from 0-30 mph in 2.9 seconds and 0-60 mph in less than 7 seconds, top speed of 91 mph, and SAE Combo DC fast charging that can add 90 miles of range in 30 minutes or fill the battery to 80% capacity in an hour. The motor drive unit includes an Electronic Precision Shift system, which appears to refer to a small automatic transmission with multiple speeds to allow the motor to operate more efficiently than if it was a direct-drive with only a single fixed gear ratio. The number of available gears was not disclosed, but Chevrolet reports a final drive ratio of 7.05:1.[8][9]

History

The Bolt was unveiled in concept form at the 2015 North American International Auto Show.[10]

Alan Batey, head of General Motors North America, announced in February 2015 that the Bolt EV was headed for production, and will be available in all 50 states.[11] The Bolt will be sold also in select global markets.[4]

As of June 2015, General Motors has been testing more than 50 Bolt prototypes hand-built at the General Motors Proving Grounds in Milford, Michigan. The cars are being tested in the proving grounds and other locations overseas. Among other areas, the prototypes are being tested for ride and handling dynamics, cabin comfort, quietness, charging capability, and energy efficiency.[12]

Comparison with other cars

While it was initially expected the Bolt would share its lithium-ion battery technology with the second generation Chevrolet Volt,[13][14] the production version uses batteries with a different chemistry more suited to the different charge cycles of a long-range electric vehicle compared to the more frequent charging/discharging of hybrids and short-range EVs.[15]

The Bolt battery capacity is 1.5x the size of the initial entry level 40 kWh Tesla Model S that was rated at EPA range of 139 miles[16] and is the same size as the more well known but no longer produced 60 kWh Model S.

Bolt Volt name confusion

Chevrolet has acknowledged that there is confusion about having two vehicles with a similar sounding name (Bolt and Volt).[17] However, in April 2015 Chevrolet's marketing chief, Tim Mahoney, announced that GM had decided to keep the Bolt name for the production model.[18] The electric car is expected to enter production in 2017 with a price starting at about US$38,000 before any applicable government subsidies.[4][18][19]


See also

References

  1. ^ "Chevrolet Commits to Bolt EV Production" (Press release). Chicago: General Motor. 2015-02-12. Retrieved 2015-02-17.
  2. ^ http://media.chevrolet.com/media/us/en/chevrolet/home.detail.html/content/Pages/news/us/en/2016/Jan/naias/chevy/0111-bolt-du.html
  3. ^ "Find a Car: New Electric Vehicles". Fueleconomy.gov. 2016-01-11. Retrieved 2016-01-11.
  4. ^ a b c Henry Payne (2015-11-19). "Chevy Bolt EV to be revealed in January at CES". The Detroit News. Retrieved 2015-11-20.
  5. ^ Jay Cole (2015-10-23). "LG Chem "Ticked Off" With GM For Disclosing $145/kWh Battery Cell Pricing – Video". Inside EVs. Retrieved 2016-01-11.
  6. ^ Jonathan M. Gitlin (2016-01-06). "Chevrolet's Bolt is an electric vehicle for the masses—and we've driven it". Ars Technica. Retrieved 2016-01-11.
  7. ^ Jeff Cobb (2016-01-11). "Chevy Bolt EV's Battery Is As Big As A Tesla's". HybridCars.com. Retrieved 2016-01-11.
  8. ^ Mike Szostech (2016-01-11). "Chevrolet Bolt EV Full Specs Released at NAIAS this morning". Retrieved 2015-01-11.
  9. ^ Sebastian Blanco (2016-01-11). "More 2017 Chevy Bolt powertrain details revealed". Autoblog. Retrieved 2016-01-11.
  10. ^ Brandon Turkus (2015-01-12). "Chevrolet Bolt EV Concept foreshadows an affordable, 200-mile EV future [w/videos]". Autoblog.com. Retrieved 2015-01-12.
  11. ^ John Voelcker (2015-02-12). "GM Officially Confirms It Will Build Chevy Bolt Electric Car With 200-Mile Range". Green Car Reports. Retrieved 2015-02-17.
  12. ^ Greg Migliore (2015-06-24). "Chevy ramps up development of Bolt EV". Autoblog.com. Retrieved 2015-06-24.
  13. ^ Brian Thevenot and Jerry Hirsch (2015-01-12). "Chevy Bolt electric car targets Tesla with low price, long range". Los Angeles Times. Retrieved 2015-01-12.
  14. ^ Doron Levin (2015-01-12). "Lightning in a sedan? GM reveals the Chevrolet Bolt". Fortune (magazine). Retrieved 2015-01-13.
  15. ^ Sebastian Blanco (2016-01-11). "Chevy Bolt EV's battery shows big improvements over Spark's". Autoblog. Retrieved 2016-01-11.
  16. ^ https://www.fueleconomy.gov/feg/Find.do?action=sbs&id=33612
  17. ^ Sebastian Blanco (2015-02-20). "Chevy admits there's confusion over Bolt and Volt names". Autoblog. Retrieved 2015-04-17.
  18. ^ a b James R. Healey, (2015-04-16). "'Bolt' name is a keeper, says Chevy marketing boss". USA Today. Retrieved 2015-04-17.{{cite news}}: CS1 maint: extra punctuation (link)
  19. ^ Jeff Bennett (2015-02-06). "GM Favors Michigan to Build Bolt Electric". Wall Street Journal. Retrieved 2015-04-17.
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